JP4896065B2 - Dishwasher - Google Patents

Description

  The present invention relates to a dishwasher for washing an object to be washed such as tableware stored in a washing tank, and more particularly to a dishwasher configured to draw out a washing tank to the front front side of a dishwasher body.

A built-in type dishwasher that is incorporated in a recent system kitchen or the like is housed in a lower part of a sink or a cooking table, or a wall of a kitchen, and a washing tank is drawn out in a horizontal direction.
In such a dishwasher, a water supply hose for supplying water into the cleaning tank and a drain hose for draining the cleaning water used for cleaning can be bent freely between the cleaning tank and the main body of the cleaning machine. It is common to be connected. And a water supply hose and a drainage hose are settled in the space formed between a washing tub and a washing machine main body, when a washing tub is stored in a washing machine main part.

  As such, “a dishwasher body, a washing tub that opens upward and stores dishes and can be pulled out in a substantially horizontal direction from the dishwasher body, and a water supply fixed to the back of the dishwasher body. A dishwasher body comprising: a valve; a drain pump fixed to the washing tank; a water supply hose connected to the water supply valve for supplying water into the washing tank; and a drain hose for draining the cleaning liquid in the washing tank. Alternatively, a hose holder is rotatably supported on the back of the washing tank, and at least the drainage hose is held by the hose holder among the water supply hose or drainage hose, and the hose holder rotates according to the pulling operation of the washing tank, and the drainage hose A tableware washing machine configured to pull the door is disclosed (for example, see Patent Document 1).

Japanese Patent No. 3129311

In the dishwasher as described in Patent Document 1, since the dishwasher main body and the washing tank are connected by the water supply hose and the drainage hose and cannot be separated, for example, even if the washing tank is pulled out from the main body, There is a problem that maintenance of these parts and parts is difficult because it is difficult to reach parts such as a rear part of the cleaning tank and a blower provided on the rear side.
In addition, the water supply hose and the drainage hose are repeatedly bent as the cleaning tank is pulled out and pushed in. This caused damage such as tearing of the water supply hose and drainage hose, and when the water supply hose and drainage hose were damaged, there was a problem that water leaked inside the system kitchen etc. in which the dishwasher was built .
Furthermore, a predetermined space for storing the water supply hose and the drainage hose is required. Various problems such as the need for an increase in size and the inability to store in a sink occurred.

  The present invention has been made to solve the above-described problems. The maintenance of the cleaning tank and the parts provided in the cleaning tank is easy, and there is no problem of breakage of the water supply hose and the drainage hose. The object of the present invention is to provide a dishwasher that can effectively use the space in the main body of the dishwasher without fear.

  The dishwasher according to the present invention has a dishwasher main body having a front opening and a dish storage opening above, and is housed in the dishwasher main body and slidably supports the front opening in the front-rear direction. A cleaning tank, a water supply mechanism for supplying water to the cleaning tank, and a drainage mechanism for draining water from the cleaning tank, the water supply mechanism including a water supply valve connected to a water supply pipe, and the dish washing A main body side water supply connector provided in the machine main body and configured to be connected to and connected to the water supply valve, and a cleaning tank side water supply connector configured to be connected to and connected to the cleaning tank. A drainage pump connected to the bottom of the cleaning tank, a cleaning tank side drainage connector provided in the cleaning tank and connected to and connected to the drainage pump. , Drainage provided in the dishwasher body The main body side water supply connector and the cleaning tank side water supply connector are freely connectable with the slide movement of the cleaning tank. The washing tank side drainage coupling tool and the main body side drainage coupling tool are freely connectable, and an elasticity that stops the coupling part at the coupling part between the main body side water supply coupling tool and the cleaning tank side water supply coupling tool. A water stop means formed of a material is provided, and a water stop means formed of an elastic material for stopping the connection portion is provided at a connection portion between the cleaning tank side drainage connection tool and the main body side drainage connection tool. It is configured.

In the dishwasher according to the present invention, a water supply mechanism is constituted by the main body side water supply connector provided in the dishwasher main body and the cleaning tank side water supply connector provided in the cleaning tank, As the cleaning tank slides back and forth, the main body side water supply connector and the cleaning tank side water supply connector are connected and disconnected to open and close the water supply path, and the main body side water supply connector main body and the cleaning tank When connecting with the side water supply connector main body, water stoppage is performed by providing a water stop means formed of an elastic material that stops the connection portion at the connection portion between the two, and cleaning provided in the cleaning tank The drainage mechanism is composed of the tank side drainage coupler and the main body side drainage coupler provided in the dishwasher body, and the body side drainage as the washing tank slides back and forth with respect to the dishwasher body. Connect and disconnect the connector and the drainage connector on the washing tank side. The drainage channel is opened and closed, and when the main body side drainage connector main body and the cleaning tank side drainage coupler main body are connected, the water stop means formed of an elastic material that stops the connection portion between the two connection portions. By providing the water supply mechanism, the water supply can be reliably stopped when the main body side water supply connector and the cleaning tank side water supply connector are connected, and when the main body side water supply connector and the cleaning tank side water supply connector of the drainage mechanism are connected. It will be.
Moreover, since the main body side water supply connector and the cleaning tank side water supply connector of the water supply mechanism can be disconnected, and the main body side drain connector and the cleaning tank side drain connector of the drainage mechanism can be disconnected, the cleaning tank and the cleaning tank Maintenance of the parts provided in the water is easy, and there is no problem of water leakage due to breakage of the conventional water supply hose and drainage hose, and the space in the dishwasher main body can be effectively used.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings.
1 is a schematic longitudinal sectional view showing the configuration of the dishwasher according to Embodiment 1 of the present invention, FIG. 2 is a front view of the dishwasher, FIG. 3 is a sectional view of a rear portion of the dishwasher, and FIG. FIG. 5 is a perspective view of a system kitchen showing an example of an installation state of the dishwasher, and FIG. 5 is a perspective view of the system kitchen showing a state where a washing tub of the dishwasher is drawn out.
6 to 18 mainly show the water supply mechanism 33 of the dishwasher, FIGS. 19 to 29 mainly show the drainage mechanism 52 of the dishwasher, and FIG. 30 shows the control device of the dishwasher. The electrical configuration of is shown.

A basic configuration of the dishwasher according to Embodiment 1 of the present invention will be described.
As shown in FIG. 1, the dishwasher 1 is stored in a dishwasher body 2 formed in a box shape having a front opening 2 a on the front surface, the dishwasher body 2, and a dish storage port on the upper side. A cleaning tank 3 formed in a box shape having 3a, a front door 6 integrally attached to the front surface of the cleaning tank 3 and provided with a handle 4 and an operation unit 5, and a number of functional parts to be described later Has been.
Further, as shown in FIG. 1, a guide 7 and a rail 8 which are slide means for supporting the washing tub 3 slidably in the front-rear direction with respect to the dishwasher main body 2 are provided inside the dishwasher 1. And a washing tub 3 housed in the dishwasher main body 2, a door opening / closing detection device 9 for detecting that the front door 6 is closed, and an object to be cleaned 98 such as tableware. Tableware basket 10, an open / close lid 11 for closing the tableware storage port 3 a of the washing tub 3 in order to prevent the sprayed washing water and drying air from flowing out of the washing tub 3, and a user And an operation unit 5 for displaying received information, driving conditions, and the like.

  Further, inside the dishwasher 1, main water supply pipe 31, water supply valve 32 and water supply mechanism 33, which are water supply means for supplying tap water as cleaning water into the cleaning tank 3, and an object to be cleaned The main rotating nozzle 12 and the cleaning pump 13 which are cleaning means for jetting and circulating cleaning water to wash out 98 dirt, and the circulating cleaning water are heated in order to draw out detergent capacity and soften oils and fats. Water heater 14 for cleaning, main drain pump 51, drain mechanism 52 and drain pipe 53, which are drain means for draining the cleaning water used for cleaning out of the dishwasher 1, and the object to be cleaned The main air blower 15 and the air passage 17 which are drying means for generating the drying air for drying 98, and the control device 18 for controlling various electric components in accordance with signals from the operation unit 5 and each detection device. And be prepared To have.

The water supply valve 32 is provided on the downstream side of the water supply pipe 31, and the cleaning water supplied to the water supply pipe 31 is connected to the main body side water supply connector 34 and the cleaning tank side water supply connector 35 which are the water supply mechanism 33 through the water supply valve 32. Then, water is supplied into the cleaning tank 3 from the water supply connecting pipe 43.
In addition, the main body side water supply connector 34 and the cleaning tank side water supply connector 34 which are the water supply mechanisms 33 will be described in detail later.
The drain pump 51 is provided outside the bottom of the washing tank 3 and drains the washing water used for washing out of the dishwasher 1. The washing water pressurized by the drain pump 51 is conducted through the drain connection pipe 57 and drained from the drain pipe 53 to the outside through the washing tank side drain connector 54 and the main body drain connector 55 as the drain mechanism 52. It has come to be.
In addition, the washing tank side drainage coupler 54 and the main body side drainage coupler 55 which are the drainage mechanism 52 will be described in detail later.
Further, the blower 15 is provided on the rear side of the dishwasher main body 2 and outside the washing tub 3 so as to blow air for drying the article 98 to be cleaned. It is discharged to the outside through the formed exhaust port 22.

Further, a door opening / closing detection device 9 for detecting a state in which the washing tub 3 is housed is provided at the upper front side of the dishwasher main body 2. The door opening / closing detection device 9 sends a signal to the control device 18 when the movement of the cleaning tank 3 is detected.
In addition, a water level detection device 20 for detecting the position of the cleaning water in the cleaning tank 3 is provided at the lower part on the front side of the dishwasher main body 2.
And the detection information of these detection apparatuses is sent to the control apparatus 18 provided in the front side of the dishwasher main body 2. FIG.
The control device 18 is provided between the front door 6 and the cleaning tank 3, and the cleaning pump 13, the drainage pump 51, the water heater 14, and the blower according to a user instruction from the operation unit 5 and a signal from each detection device. 15, the water supply valve 32 etc. are controlled (refer FIG. 30). The control device 18 may be composed of a microcomputer or the like.

As shown in FIG. 2, in addition to the handle 4 and the operation unit 5, an exhaust port 22 for exhausting the air in the cleaning tank 2 is provided at the upper part of the front door 6 of the dishwasher 1.
In addition, the operation unit 5 starts various operations for receiving instructions from the user, such as the power switch 19a for turning on / off the power supply to the dishwasher 1, the operation of the dishwasher 1, A start / temporary operation switch 19b or the like for stopping is provided.

As shown in FIG. 3, when the dishwasher 1 is viewed from the back, the dishwasher body 2 has a washing tub 3, an opening / closing lid 11, a blower 15, a drying heater 16, a blower 15 and a drying machine. A casing 81 containing the heater 16, a blower path 17 connected to the casing 81, a water supply pipe 31, a water supply valve 32, a main body side water supply connector 34, a water supply connection pipe 38, a drainage pump 51, a drainage It can be seen that a pipe 53, a main body side drainage connector 55, a drainage trap 56, a drainage connection pipe 57, and a drainage connection pipe 63 are installed.
The drain trap 56 is a part of the drain pipe 53 and is formed on the downstream side of the main body side drain connector 55 so that an appropriate amount of drainage can be always stored in the drain trap 56. It is possible to reliably prevent the intrusion of odors and insects.

As shown in FIGS. 4 and 5, the dishwasher 1 can be used by being incorporated in a part of the system kitchen 99. In general, the system kitchen 99 includes a drawer, a door, a sink, a sink, and the like in addition to the dishwasher 1.
As shown in FIG. 5, the washing tub 3 is movable in the front-rear direction by the rails 8 provided on both side surfaces of the washing tub 3 sliding on the guides 7 fixed on both sides of the dishwasher main body 2. .
The guide 7 is attached to both side surfaces of the dishwasher main body 2 and slidably supports rails 8 provided on both side surfaces of the cleaning tank 3. The rails 8 are attached to both side surfaces of the cleaning tank 3 and are movable in the front-rear direction along the guide 7.
Accordingly, the drawer operation of the dishwasher 1 is performed by grasping the handle 4 provided on the front door 6 by hand and pulling out the washing tank 3 forward.

The user pulls out the washing tank 3 forward, and places the dirty object to be washed 98 on the tableware basket 10 mounted on the washing tank 3 from the tableware storage opening 3a formed on the upper surface of the drawn washing tank 3. The washing tub 3 is pushed into the dishwasher main body 2, and the washing tub 3 is stored in the dishwasher main body 2.
At this time, the washing tank 3 is securely stored in the dishwasher main body 1, and the door opening / closing detection device 9 for detecting whether the front door 6 is closed is provided in the dishwasher main body 2. It is stored in the dishwasher body 1 and it is confirmed whether the front door 6 is closed. In addition, you may provide the door opening / closing detection apparatus 9 in the front door 6 of a washing tank.
As described above, the door opening / closing detection device 9 is for detecting that the cleaning tank 3 is securely stored and the front door 6 is closed. In the first embodiment, the door opening / closing detection device 9 is attached to the front upper part of the dishwasher main body 2, and the position of the washing tub 3 is located at the rear upper part of the front door 6. Was to be detected.
In addition, from the viewpoint of ensuring safety, the storage state detection range of the door open / close detection device 9 is normally set to be narrow, whereby the handle 4 is grasped by hand and the washing tank 3 is pulled out. Immediately after that, that is, at the stage of slight sliding movement, the operation of various electrical components can be stopped.

The basic configuration of the dishwasher according to the first embodiment of the present invention has been described above. Hereinafter, portions related to the features of the present invention will be described in detail.
(Water supply mechanism)
First, the water supply mechanism 33 which supplies tap water to the washing tank 3 in the dishwasher main body 2 will be described.
As shown in FIG. 1, the water supply mechanism 33 includes a water supply pipe 31 that guides tap water serving as cleaning water to the inside of the dishwasher main body 2, and a water supply path connected to the water supply pipe 31 according to a signal transmitted from the control device 18. The water supply valve 32 that opens and closes the main body, the main body side water supply connector 34 that performs connection and disconnection of the water supply path, and the water supply in the washing tank side as the washing tank 3 slides back and forth with respect to the dishwasher main body 2. The connector 35 includes a water supply connection pipe 43 having one end connected to the cleaning tank-side water supply connector 35 and the other end connected to the cleaning tank 3.
As shown in FIG. 6, a water supply check valve 36 is attached to the water supply valve outlet 32 a of the water supply valve 32 for the purpose of preventing contamination of the water supply against an emergency sewage backflow.
A main body side water supply coupler 34 is connected to a water supply valve 32 having a water supply valve outlet 32 a to which the water supply check valve 36 is attached, and the main body side water supply coupler 34 is connected to the cleaning tank 3 via a water supply connection pipe 43. By being connected to the cleaning tank side water supply connector 35, a series of water supply paths are established from the water supply pipe 31 for introducing the tap water of the water supply pipe of the house to the cleaning tank 3.

(Main body side water supply connector)
Next, the main body side water supply coupler 34 constituting a part of the water supply mechanism 33 will be described with reference to FIGS.
As shown in FIGS. 6, 8, 11, and 14, the main body side water supply connector 34 is connected to the main body side water supply connector inlet 34 a into which the cleaning water from the water supply valve 32 flows and the cleaning tank side water supply connector 35. The main body side water supply connector main body 34b and the main body side water supply connector main body 34b are mounted on the inner side of the front end of the main body side water supply connector main body 34b so that water can be passed only when an external force is applied. And a main body side water supply connector mounting body 34c used for attachment to the dishwasher main body 2 and a main body side water supply connector main body 34b. 35, a cylindrical main body side water supply connector female-type guide body 34d for obtaining a concentric position of both the connectors, and a main body side water supply connector outlet 34e.
The main body side water supply coupler 34 is attached to the dishwasher main body 2 by bringing the main body side water supply coupler 34 a into contact with the dishwasher main body 2 and penetrating the dishwasher main body 2. The main body side water supply coupler 34 is fixed to the dishwasher main body 2 by fastening the screw to the main body side water supply coupler attachment body 34c.

In addition, about the main body side water supply coupler 34, there exist what was comprised separately from the water supply valve 32, and what was comprised substantially integrated with the water supply valve 32. Therefore, each using FIG.6 and FIG.17, The configuration will be described.
What is configured separately from the water supply valve 32 is formed by connecting a water supply valve outlet 32a and a main body side water supply connector inlet 34a with a water supply connection pipe 38, as shown in FIG. This is suitable for the case where the main body side water supply coupler 34 and the water supply valve 32 are arranged apart from each other for convenience.
On the other hand, as shown in FIG. 17, the water supply valve 32 is substantially integrated with the water supply valve outlet 32a directly and integrally connected to the main body side water supply connector main body 34b. It is not necessary to use the connection tool inlet 34a and the water supply connection pipe 38, and it is possible to reduce the number of connected parts where water leakage is a concern as well as parts reduction.

(Washing tank side water supply connector)
Next, the washing tank side water supply coupler 35 which comprises a part of water supply mechanism 33 is demonstrated based on FIGS.
As shown in FIGS. 6, 8, 11, and 14, the cleaning tank side water supply connector 35 is a cylindrical shape connected to the main body side water supply connector 34, and has a stepped portion on the front end side to increase diameter cleaning. The tank side water supply connector main body 35a and the washing tank side water supply connector main body 35a are mounted on the inner side of the diameter-expanded end by using a water stop gasket packing holder 39, and the main body side water supply connector 34 and the cleaning tank side water supply connector 35, i.e., a water supply and sealing gasket 40 formed of an elastic member such as rubber for preventing water leakage between the main body side water supply connector main body 34b and the cleaning tank side water supply connector main body 35a, Similarly, the cleaning tank-side water supply connector main body 35a is mounted inside the cleaning tank-side water supply connector main body 35a and has a function of preventing backflow. Cleaning tank side water supply connector outlet 35b for feeding cleaning water, and cleaning tank side When connecting the water supply connection pipe 43 that connects the water connector outlet 35 b and the cleaning tank 3, the substantially square cleaning tank side water supply connector mounting cylinder 35 c used for attachment to the cleaning tank 3, and the main body side water supply connector 34. The shaft-shaped cleaning tank side water supply connector side male guide body 35d for obtaining the concentric position of both the connectors is constituted.
The cleaning tank side water supply connector 35 is attached to the cleaning tank 3 by using the cleaning tank side water supply connector mounting boss 3b formed on the rear side of the cleaning tank 3 as a substantially square cleaning tank of the cleaning tank side water supply connector 35. A cleaning tank is provided by penetrating through the side water supply connector mounting cylinder 35c and fastening a screw 44 having a larger outer diameter than the cleaning tank side water supply connector mounting cylinder 35c to the cleaning tank side water supply connector mounting boss 3b. The cleaning tank side water supply coupler 35 is attached to the side water supply coupler attachment boss 3b so as to be movable in the vertical and horizontal directions within a planar surface.

Here, the water supply / water-stopping packing 40 attached to the inner side of the enlarged diameter tip of the cleaning tank side water supply connector main body 35a in the cleaning tank side water supply connector 35 will be described in a little more detail.
The water supply / stop water packing 40 may be said to be the most important component among the components constituting the water supply mechanism 33 described above.
The function of the water supply stop packing 40 is between the main body side water supply connector main body 34b formed on the main body side water supply connector 34 and the cleaning tank side water supply connector main body 35a formed on the cleaning tank side water supply connector 35. In order to prevent water leakage between the two, the prevention of the water leakage is established when the lip portion 40a formed on the water supply stop packing 40 is in close contact with the main body side water supply connector main body 34b in a watertight state.
In order to ensure this, it is more important to keep the concentricity of both couplings firmly and to prevent the lip 40a from deforming abnormally without applying a biased force to the lip 40a. It is.

However, the water supply mechanism 33 constituted by the main body side water supply connector 34 and the washing tub side water supply connector 35 is easily affected by a positional shift that occurs when the cleaning tub 3 is stored inside the dishwasher main body 2. It is important how to absorb this misalignment.
It is also important how to prevent water dripping from the main body side water supply connector body 34b and the cleaning tank side water supply connector body 35a when the main body side water supply connector 34 and the cleaning tank side water supply connector 35 are separated. It is.
Hereinafter, a device related to misalignment absorption, a device related to water stop, and a device related to preventing dripping will be described.

(Position displacement absorption)
First, a description will be given of absorption of displacement between the main body side water supply connector 34 and the cleaning tank side water supply connector 35.
In order to absorb the misalignment, a guide method using male and female guide bodies formed on both connectors and a method of moving the cleaning tank side water supply connector 35 relative to the cleaning tank 3 are adopted.
As a guide method using the male and female guide bodies of the first embodiment, a method of inserting the hole and the shaft is a method of moving the cleaning tank side water supply coupler 35 relative to the cleaning tank 3. For this, a method of loosely fitting the hole and the shaft is used.
That is, as a specific guide method using the male and female guide bodies, a hole and an elongated hole are formed in the main body side water supply coupler 34 as the main body tank side water supply coupler female guide body 34d. The cleaning tank side water supply coupler 35 is formed with two shafts having a substantially conical tip as the cleaning tank side water supply coupler male guide body 35d, and the cleaning tank 3 is provided inside the dishwasher main body 2. Each of them is configured to be inserted into a hole and a long hole when they are housed (see FIGS. 8 to 10).

The reason why two sets of male and female guide bodies are provided on both couplings is to absorb the misalignment of the two axes in the vertical and horizontal directions. This is a method that takes into account dimensional variations.
The reason why the tip of the shaft is substantially conical is that it is also a widely used method to facilitate picking up the shaft with a hole.
It should be noted that the point at which the shaft of the washing tank side water supply connector male guide body 35d transitions from the substantially conical range at the tip to the columnar range is set as a position before the water supply seal 40 starts to function. However, this is to make the water supply / stop packing 40 start to function after the stage in which the two axes in the vertical and horizontal directions of both connectors become concentric positions.

Next, as a specific method of moving the cleaning tank side water supply connector 35 with respect to the cleaning tank 3, the cleaning tank side water supply connector having a substantially square large hole formed in the cleaning tank side water supply connector 35 is attached. The cylinder 35c is mounted loosely on a cleaning tank side water supply connector mounting boss 3b formed on the rear side of the cleaning tank 3 having a function of a shaft in addition to a screw fastening function, and the cleaning tank side water supply connector The cleaning tank 3 is fastened to the cleaning tank 3 by fastening a screw 44 having a larger outer diameter than the cleaning tank-side water supply connector mounting cylinder 35c to the cleaning tank-side water supply connector mounting boss 3b slightly protruding from the mounting cylinder 35c. It was set as the structure which mounts | wears with the side water supply coupling tool 35 so that a planar movement is possible (refer FIGS. 8-10).
In addition, the absorption margin of misalignment is a range of a gap generated between the cleaning tank side water supply connector mounting boss 3b which is a shaft and the cleaning tank side water supply connector mounting cylinder 35c which is a substantially square large hole.

Again, the reason why the washing tank side water supply coupler 35 is movably attached to the washing tank 3 is the biaxial position in the vertical and horizontal directions that occurs when the washing tank 3 is housed inside the dishwasher body 2. The main body side water supply connection fixed to the dishwashing tank cleaning main body 2 even if the vertical and horizontal biaxial misalignment between the washing tank 3 and the dishwasher main body 2 slightly occurs. This is because the cleaning tank side water supply connector 35 is caused to follow the tool 34 by the action of both the male and female guide bodies to obtain concentric positions of the two connectors.
This is to make the water supply / water shutoff packing 40 function sufficiently, that is, to reliably prevent water leakage at the connecting portions of both connecting tools.

  The reason why the main body side water supply coupler 34 is used as the fixed side is that the trouble caused by the work of installing the dishwasher 1 in the system kitchen 99 is taken into account. Even if a strong force is applied, if the main body side water supply connector 34 is firmly fixed, it can withstand the force, but if this is mounted movably, the force becomes a restraining force, and the following operation This is because there is a fear that it will not be possible.

(Water stop)
As shown in FIG. 6, the water stop at the connecting portion between the main body side water supply connector 34 and the cleaning tank side water supply connector 35 is performed using the water supply water seal packing 40 as shown in FIG. The packing 40 is mounted on the inner side of the front end of the cleaning tank side water supply connector main body 35a by using a water supply water stop packing presser 39.
In addition, the water stop part of the water supply water stop packing 40 is a lip part 40a formed in a trumpet shape whose tip is reduced in diameter, and the direction thereof is the same as the insertion direction of the main body side water supply connector main body 34b.
This is because when the main body side water supply coupler main body 34b is inserted, the lip portion 40a is prevented from turning, and the pressure of the cleaning water flowing therethrough is applied to the main body side water supply coupler main body 34b. This is to make it act so as to adhere to a watertight state.

As shown in FIG. 6, the water supply / water stop packing retainer 39 is also formed in a substantially trumpet shape, with one end having a large diameter to facilitate the main body side water supply connector main body 34 b and the other end having a main body side water supply connection. In order to ensure concentricity with the tool main body 34b, the diameter is slightly larger than the diameter of the main body side water supply connector main body 34b.
As can be seen from FIG. 6, these lines are arranged from the enlarged diameter front end side of the washing tank side water supply connector main body 35 a to the large diameter part, the small diameter part, the water stop water packing 40, and the cleaning tank. It is the cylindrical part of the side water supply coupler main body 35a.

In a sense, this is similar to the operation of the main body side water supply connector female guide 34d and the cleaning tank side water supply connector male guide 35d formed in the main body side water supply connector 34 and the cleaning tank side water supply connector 35, respectively. Because the large diameter portion of the water supply and water sealing presser foot 39 picks up the main body side water supply connector main body 34b at the start of the connection of both connectors, the concentric positions of both connectors are sufficiently obtained, Even if both guide bodies are not provided, the water supply / stop water packing 40 can be sufficiently functioned, and water leakage at the connecting portions of the two connecting tools can be reliably prevented.
In addition, the cylindrical portion other than the tip of the cleaning tank side water supply connector main body 35a has a main body side water supply similar to the small-diameter portion of the water stop water packing retainer 39 in order to prevent oblique insertion of the main body side water supply connector main body 34b. The diameter is slightly larger than the diameter of the connector main body 34b.

The insertion dimension of the main body side water supply coupler main body 34b with respect to the cleaning tank side water supply coupler main body 35a, that is, the water stop effective range L of the water stop water packing 40 shown in FIG. 7 (that is, the outer peripheral surface of the main body side water supply coupler main body 34b). This is the reason why the water stoppage range between the inner peripheral surface of the cleaning tank side water supply connector main body 35a and the lip portion 40a of the water supply stop water packing 40 is relatively long. This is because the positional deviation in the front-rear direction that occurs when the washing tub 3 is housed inside the dishwasher body 2 is taken into consideration.
In short, the lip portion 40a of the water supply / stop water packing 40 can closely contact the main body side water supply connector main body 34b even if there is some positional deviation in the front-rear direction between the cleaning tank 3 and the dishwasher main body 2. .
Further, if the effective water stoppage range of the water supply / water stop packing 40 is set to be longer than the storage state detection range of the door opening / closing detection device 9, the water supply / water stop packing 40 will be used after the operation of various electrical components is stopped due to the pulling-out operation. Since the lip portion 40a and the main body side water supply connector main body 34b are separated from each other, for example, even in the middle of water supply, the two connectors can be separated without leaking water from the connection portion.

(Prevents dripping)
A method of preventing water dripping from the main body side water supply connector main body 34b and the cleaning tank side water supply connector main body 35a will be described.
The water dripping prevention method uses a water stop valve attached to both water inlets of the main body side water supply connector main body 34b and the washing tank side water supply connector main body 35a, and stops the main body side water supply connector. The water valve 37 is mounted so that the valve body cantilever is supported inside the front end of the main body side water supply connector main body 34b so that it can swing, and the main body side water supply connector outlet 34e is normally closed.
In such a form, the valve body swings in a direction that follows the fluid flow direction, and the water stop function is exhibited by closely contacting the valve body and the water stop plate. Normally, the water stop valve 37 is in close contact with the hole-shaped main body side water supply connector outlet 34e formed at the front end of the main body side water supply connector main body 34b, and stops water in the water supply. It is installed in the direction that will end up. However, if an external force in the direction opposite to the flow of the fluid is applied to the valve body, the fluid can flow without any problem.

The main body side water supply connector stop valve 37 utilizes such a principle, and in the state where the main body side water supply connector 34 and the cleaning tank side water supply connector 35 are connected, the cleaning tank side water supply connection. An external force is applied to the main body side water supply coupler water stop valve 37 by a shaft 42a formed on the cleaning tank side water supply coupler water stop plate 42 mounted inside the tool main body 35a so that the cleaning water flows ( In the state where the main body side water supply connector 34 and the cleaning tank side water supply connector 35 are separated, the water stop function is exhibited (see FIG. 6).
The operation principle and function of the other cleaning tank side water supply connector stop valve 41 and the cleaning tank side water supply connector stop water plate 42 are the same as those of the main body side water supply connector stop valve 37.
However, the direction in which the water is attached is the direction that exhibits the water stop function only when the washing water flows backward.

  As described above, the operation of the door opening / closing detection device 9 stops the operation of various electrical components or detects the door opening / closing immediately after the drawer operation of the cleaning tank 3 is performed, that is, at the stage of slight sliding movement. Although the water leakage countermeasure of this part is fully taken, such as enlarging the water stop effective range of the water supply water cutoff packing 40 from the storage state detection range of the apparatus 9, it is taken as a further water leakage countermeasure.

Next, based on FIGS. 11 to 16, the displacement of the main body side water supply connector 34 and the cleaning tank side water supply connector 35 is absorbed along with the displacement of the female guide body and the male guide body. I will explain.
11 to 13 show a cross section of the upper half of the main body side water supply connector 34 and the cleaning tank side water supply connector 35, and FIGS. 14 to 16 show the main body side water supply connector 34 and the cleaning tank side water supply connector. A cross section of the lower half with 35 is shown.
The washing tub 3 is slid toward the dishwasher main body 2, and the main body side water supply coupler 34 fixed to the dishwasher main body 2 is movably attached to the washing tub 3. As 35 approaches, first, the substantially conical tip of the cleaning tank side water supply connector male guide body 35d of the cleaning tank side water supply connector 35 corresponds to the main body side water supply connector female type guide body 34d of the main body side water supply connector 34d. It contacts the inner peripheral surface (see FIG. 11 and FIG. 14), and then is guided by the inner peripheral surface of the main body side water supply connector female guide 34d so that the cleaning tank side water supply connector male guide body 35d moves up and down in the figure. The substantially conical tip of the cleaning tank side water supply coupler male guide body 35d is positioned toward the main body side water supply coupler female guide body 34d.

At this time, the cleaning tank side water supply coupler main body 35a of the cleaning tank side water supply coupler 35 is also positioned toward the center of the main body side water supply coupler main body 34b of the main body side water supply coupler 34 (FIGS. 12 and 12). 15).
Finally, the cleaning tank side water supply connector male guide body 35d is inserted into the main body side water supply connector female type guide body 34d, and accordingly, the cleaning tank side water supply connector main body 35a becomes the main body side water supply connector main body 34b. The cleaning tank side water supply connector 35 is connected with the main body side water supply connector 34 without being displaced (see FIGS. 13 and 16).
At this time, the main body side water supply connector water stop valve 37 of the main body side water supply connector 34 is swing-moved by the shaft 42a of the cleaning tank side water supply connector 35, and the main body side water supply connector outlet 34e is opened.
Moreover, the washing tank side water supply coupler stop water valve 41 of the washing tank side water supply coupler 35 is swing-moved by water supply and opened.

(Effect of the water supply mechanism of Embodiment 1)
As described above, the dishwasher 1 according to the first embodiment includes the main body side water supply coupler 34 provided in the dishwasher main body 2 and the cleaning tank side water supply coupler 35 movably provided in the cleaning tank 3. The water supply mechanism 33 is configured, and the main body side water supply connector 34 and the cleaning tank side water supply connector 35 are connected and disconnected as the cleaning tank 3 slides back and forth with respect to the dishwasher main body 2. The water supply channel is opened and closed.
And the washing tank side of the washing tank side water supply coupler 35 movably provided in the washing tank 3 at the tip of the main body side water supply coupler body 34b of the main body side water supply coupler 34 provided in the dishwasher main body 2 When the trumpet-shaped tip of the water supply connector main body 35a is movably connected, the two are connected to a concentric position.
Two female guide bodies 34d are provided on the main body side water supply connector 34, two male guide bodies 35d are provided on the cleaning tank side water supply connector 35, and guides for both the female and male guide bodies 34d and 35d are provided. By utilizing the action, the trumpet-shaped tip of the cleaning tank side water supply connector main body 35a is further connected to the tip of the main body side water supply connector main body 34b at a concentric position.
Further, a water-stop water packing 40 formed of an elastic material is attached to the front end of the cleaning tank-side water supply connector main body 35a with a water-supply water-stopping packing presser 39, and the front end of the main body-side water supply connector main body 34b is connected to the cleaning tank-side water supply connection. Water stoppage is performed by interposing a water supply waterstop packing 40 when connecting to the tip of the tool body 35a.

Further, the water supply / water seal packing 40 is provided with a lip portion 40a that is in close contact with the main body side water supply connector main body 34b in a water-tight manner, and the water stop effective range of the water supply / water seal packing 40 is set to be relatively long. It is possible to absorb the positional deviation of the tool in the front-rear direction.
Further, by setting the effective water stoppage range of the water supply stoppage packing 40 to be longer than the storage state detection range of the door opening / closing detection device 9, the water supply stoppage is made after the operation of various electrical parts due to the drawer operation of the washing tank 3 is stopped. The water packing 40 comes away from the main body side water supply connector outlet 34b, and the leakage of the connecting portion, which is a major problem of the water supply mechanism 33, can be reliably prevented.
Furthermore, in the state where both the couplers are disconnected, the water stop valves 37 and 41 that exhibit the water stop function are mounted on both water inlets of the main body side water supply coupler main body 34b and the cleaning tank side water supply coupler main body 35a. Thereby, the water leakage of the connection part which is a big subject of the water supply mechanism 33 can be prevented reliably.
In addition, since the water supply check valve 36 is attached to the water supply valve outlet 32a of the water supply valve 32 on the upstream side of the series of water supply passages, dirt or sewage is connected to the connected portion of the water supply mechanism 33 that has been separated. Even if water adheres to the water supply valve 32, the water does not flow back to the upstream side, and the safety of the water supply can be ensured.

(Drainage mechanism)
Next, the drainage mechanism 52 that drains the cleaning water in the cleaning tank 3 to the outside will be described.
As shown in FIG. 19, the drainage mechanism 52 includes a drainage pump 51 that drains the cleaning water stored in the cleaning tank 3, and a drainage connection pipe 57 that is connected to the drainage pump 51 according to a signal transmitted from the control device 18. As the washing tub 3 slides back and forth with respect to the dishwasher main body 2, the washing side drainage connector 54, the main body side drainage connector 55, and the main body side drainage connector that connect and disconnect the drainage channels. The drainage trap 56 is connected to a drainage trap 56 for preventing a bad odor or pest from entering from sewage, and one end is connected to the drainage trap 56 and one end is connected to the drainage pipe of the house. And a drain pipe 53 that guides the washing water used for the outside to the outside of the dishwasher 1.
Further, the cleaning side drainage connector 54 and the main body side drainage connector 55 are disposed above the level of the cleaning water stored in the cleaning tank 3.
The drainage pump 51 and the cleaning side drainage connector 54 are connected, and the main body side drainage connector 55 and the drainage trap 56 are connected, so that a series of drainage channels are established from the cleaning tank 3 to the drainage pipe of the house. To do.

(Washing tank side drainage connector)
Next, the washing tank side drainage connector 54 constituting a part of the drainage mechanism 52 will be described with reference to FIGS.
As shown in FIGS. 19, 21, 22, and 24, the cleaning tank side drainage connector 54 includes a cleaning tank side drainage connector inlet 54a into which cleaning water from the drainage pump 51 flows, a drainage pump 51, and a cleaning tank side. A drainage connection pipe 57 connecting the drainage connector inlet 54a, a cleaning tank side drainage connector body 54b connected to the main body side drainage connector 55, and a tip inner side of the cleaning tank side drainage connector body 54b are attached to the external force. The washing tank side drainage connector water stop valve 58 configured to allow water to flow only when activated, the substantially square washing tank side drainage connector mounting cylinder 54c used for attachment to the washing tank 3, and the main body side It is comprised by the washing tank side drainage connector male type | mold guide body 54d for obtaining the concentric position of both connectors at the time of the connection with the drainage connector 55.
The cleaning tank side drainage connector 54 is attached to the cleaning tank 3 by using the cleaning tank side drainage connector mounting boss 3c formed on the rear side of the cleaning tank 3 as a substantially square cleaning tank of the cleaning tank side drainage connector 54. The side drainage connector mounting cylinder 54c is penetrated, and the cleaning tank side drainage connector mounting boss 3c is screwed with a screw 64 having a gutter having a larger outer diameter than the cleaning tank side drainage connector mounting cylinder 54c. A cleaning tank side drainage connector 54 is mounted on the tank side drainage connector mounting boss 3c so as to be movable in the vertical and horizontal directions within a planar surface.

(Main body side drainage connector)
Next, the main body side drainage connector 55 constituting a part of the drainage mechanism 52 will be described with reference to FIGS.
As shown in FIGS. 19, 21, 22, and 24, the main body side drainage connector 55 is a cylindrical body that is connected to the cleaning tank side drainage connector 54 and has a stepped portion on the tip side, and has an enlarged diameter. Side drainage connector main body 55a, and a drainage water seal packing retainer 59 is attached to the inside of the front end of main body side drainage connector main body 55a, and a connecting portion between cleaning tank side drainage connector 54 and main body side drainage connector 55 That is, the drainage-stop gasket 60 formed of an elastic member such as rubber for preventing water leakage between the washing tank side drainage connector main body 54b and the main body side drainage connector main body 55a, and the main body side drainage connection. A main body side drainage coupler 61 which is mounted inside the instrument main body 55 a and has a function of preventing backflow, and a main body side drainage coupler waterstop plate 62 and a main body side drainage coupler waterstop plate 62 and a drainage trap 56. Exit 55b and body side drainage connector When connecting the drainage connection pipe 63 that connects the mouth 55b and the drainage trap 56, the main body side drainage connector attachment body 55c used for attachment to the dishwasher body 2 and the washing tub side drainage connector 54, both coupling tools are used. And a main body side drainage connector female guide body 55d for obtaining a concentric position.
The main body side drainage coupler 55 is attached to the dishwasher main body 2 by bringing the main body side drainage coupler attachment body 55c of the main body side drainage coupler 55 into contact with the dishwasher main body 2 so that the dishwasher main body 2 is attached. The main body side drainage connector 55 is fixed to the dishwasher main body 2 by fastening the penetrated screw to the main body side drainage connector attachment body 55c.

Here, the drain water stop packing 60 attached to the inner end of the main body side drainage connector main body 55a having a larger diameter will be described in more detail.
In the following description, it is refused in advance that there are many contents having the same meaning as the water supply mechanism 33.
The drainage / water-stopping packing 60 can be said to be the most important component among the components constituting the drainage mechanism 52 described above.
Although the function of the drain water stop packing 60 is also mentioned above, the main body side formed in the main body side drainage connector 55 and the main body side drainage connector 55 formed in the main tank side drainage connector 55. This is to prevent water leakage between the drainage connector main body 55a. The water leakage is prevented by the lip portion 60a formed in the drainage waterproof packing 60 on the washing tank side drainage connector main body 54b. It is established by close contact.
In order to ensure this, it is more important to take the concentricity of both couplings firmly, not to apply a biased force to the lip 60a, and to prevent the lip 60a from deforming abnormally. It is.

However, the drainage mechanism 52 constituted by the washing-side drainage coupler 54 and the main body-side drainage coupler 55 is easily affected by the positional deviation that occurs when the washing tank 3 is housed inside the dishwasher main body 2. It is important to absorb this misalignment.
It is also important how to prevent dripping from the cleaning tank side drainage connector body 54b and the body side drainage connector body 55a when the cleaning side drainage connector 54 and the body side drainage connector 55 are separated. is there.
Hereinafter, a device related to misalignment absorption, a device related to water stop, and a device related to preventing dripping will be described.

(Position displacement absorption)
First, the displacement absorption between the cleaning tank side drainage connector 54 and the main body side drainage connector 55 will be described.
In order to absorb the misalignment, a guide method using male and female guide bodies formed on both connectors and a method of moving the cleaning tank side drain connector 54 relative to the cleaning tank 3 are taken.
As a guide method using the male and female guide bodies of the first embodiment, a method of inserting a hole and a shaft is used, and a method of moving the cleaning tank side drainage connector 54 relative to the cleaning tank 3. For this, a method of loosely fitting the hole and the shaft is used.
That is, a specific guide method using a male and female guide body is provided. In the main body side drainage connector 55, a hole and a long hole are formed as the main body side drainage connector female guide body 55d. The washing tub side drainage connector 54 is formed with two shafts having a substantially conical tip as the washing tub side drainage connector male guide body 54d. Each was inserted into a hole and a long hole when stored inside (see FIGS. 21 to 23).

The reason why two sets of male and female guide bodies are provided on both couplings is to absorb the misalignment of the two axes in the vertical and horizontal directions. This is a method that takes into account dimensional variations.
The reason why the tip of the shaft, which is the male guide body, is substantially conical is to make it easy to pick up the shaft with a hole by a generally widely used method.
The point at which the shaft of the washing tank side drainage connector male guide body 54d moves from the substantially conical range at the tip to the columnar range is set as the position before the drainage water seal packing 60 starts to function. However, this is for the drainage-water-stopping packing 60 to start functioning after the stage where the two axes in the vertical and horizontal directions of both connectors are concentric.

Next, as a specific method of moving the cleaning tank side drainage connector 54 with respect to the cleaning tank 3, the cleaning tank side drainage connector having a substantially square large hole formed in the cleaning tank side drainage connector 54 is attached. The cylinder 54c is mounted loosely on a cleaning tank side drainage connector mounting boss 3c formed on the rear side of the cleaning tank 3 having a shaft fastening function as well as a screw fastening function, and the cleaning tank side drainage coupling tool. The cleaning tank 3 is cleaned by fastening a screw 64 having a gutter having an outer diameter larger than that of the cleaning tank side drainage connector mounting cylinder 54c to the cleaning tank side drainage connector mounting boss 3c slightly protruding from the mounting cylinder 54c. The tank-side drainage connector 54 is configured to be mounted so as to be movable in the vertical and horizontal directions within a planar surface (see FIGS. 21 to 23).
In addition, the absorption margin of misalignment is a range of a gap generated between the cleaning tank side drainage connector mounting boss 3c, which is a shaft, and the cleaning tank side drainage connector mounting cylinder 54c, which is a substantially square large hole.

Again, the reason why the washing tank side drainage connector 54 is movably attached to the washing tank 3 is the biaxial axis in the vertical and horizontal directions that occurs when the washing tank 3 is stored in the dishwasher body 2. In consideration of misalignment, in short, the main body side drainage connection fixed to the dishwasher main body 2 even if there is a slight misalignment between the vertical and horizontal directions of the washing tank 3 and the dishwasher main body 2 This is because the cleaning tank side drainage connector 54 is caused to follow the tool 55 by the action of both the male and female guide bodies, and the concentric positions of the two connectors are obtained.
This is to make the drain water-stop packing 60 function sufficiently, that is, to reliably prevent water leakage at the connecting portions of the two connecting tools.

  The reason why the main body side drainage coupler 55 is used as the fixed side is that the trouble due to the work of installing the dishwasher 1 in the system kitchen 99 is taken into account. Even if a strong force is applied, if the main body side drainage connector 55 is firmly fixed, it can withstand the force, but if this is mounted movably, the force becomes a restraining force, and the following operation This is because there is a fear that it will not be possible.

(Water stop)
As shown in FIG. 19, the water stop at the connecting portion between the cleaning tank side drainage connector 54 and the main body side drainage connector 55 is performed using a drain waterstop packing 60 as shown in FIG. The packing 60 is mounted on the inner side of the front end of the main body side drainage connector inlet 55a by using a drain water stop packing retainer 59.
In addition, the water stop part of the drain water stop packing 60 is a lip part 60a formed in a trumpet shape whose tip is reduced in diameter, and its direction is the same as the insertion direction of the cleaning tank side drain connector main body 54b.
This is because when the cleaning tank side drainage connector main body 54b is inserted, the lip portion 60a is prevented from turning, and the pressure of the drainage flowing through the lip part 60a is reduced by the lip 60a. This is to make it act in close contact with the watertight state.

As shown in FIG. 19, the drain water stop packing retainer 59 is also formed in a substantially trumpet shape, with one end having a large diameter for facilitating the invitation of the washing tank side drainage connector main body 54b, and the other end on the washing tank side. In order to ensure concentricity with the drainage connector main body 54b, the diameter is slightly larger than the diameter of the cleaning tank side drainage connector main body 54b.
As can be seen from FIG. 19, these lines are arranged in such a manner that the large-diameter portion, the small-diameter portion of the drain water-stop packing retainer 59, the drain-water seal packing 60, and the main-unit drain It is the cylindrical part of the connector main body 55a.

In a sense, this is the same as the main body side drainage connector female guide 55d and the cleaning tank side drainage connector male guide 54d formed on the main body side drainage connector 55 and the cleaning tank side drainage connector 54, respectively. The large diameter portion of the drain water stop packing retainer 59 picks up and draws in the washing tank side drain connector main body 54b at the start of the connection of both connectors, so that the concentric positions of both connectors are sufficiently obtained. Therefore, even if both guide bodies are not provided, the drain water-stop packing 60 can sufficiently function, and water leakage at the connecting portions of both connecting tools can be reliably prevented.
In addition, the cylindrical portion other than the tip of the main body side drainage connector main body 55a is the same as the small diameter portion of the drainage water seal packing retainer 59 in order to prevent oblique insertion of the cleaning tank side drainage connector main body 54b. The diameter is slightly larger than the diameter of the drainage connector main body 54b.

The insertion dimension of the cleaning tank side drainage connector main body 54b with respect to the main body side drainage coupler main body 55a, that is, the effective water stoppage range of the drainage water stop packing 60 (that is, the outer peripheral surface of the cleaning tank side drainage coupling main body 54b is connected) The reason is that the water stop range between the inner peripheral surface of the main body side drainage connector main body 55a and the lip portion 60a of the drain water stop packing 60 is set relatively long. This is because the positional deviation in the front-rear direction that occurs when the machine is stored in the cleaning machine main body 2 is taken into consideration.
In short, because the lip portion 60a of the drain water stop packing 60 can be in close contact with the washing tank side drainage connector main body 54b even if there is some positional deviation in the front-rear direction between the washing tank 3 and the dishwasher body 2. is there.
Moreover, if the insertion dimension of the washing tank side drainage connector main body 54b, that is, the effective water stoppage range of the drainage waterstop packing 60 is set longer than the storage state detection range of the door open / close detection device 9, the drawer operation can be performed. Since the lip portion 60a of the drain water stop packing 60 and the washing tank side drainage connector main body 54b are separated after the operation of the various electrical components involved, for example, water is leaked from the connection portion even during drainage. Without disconnecting both connectors.

(Prevents dripping)
A method for preventing water dripping from the cleaning tank side drainage connector main body 54b and the main body side drainage connector main body 55a will be described.
The method of preventing the dripping is to use a water stop valve attached to both water outlets of the washing tank side drainage connector main body 54b and the main body side drainage coupler main body 55a. As described above, the water stop valve 58 is mounted so that the valve body cantilevered inside the front end of the washing tank side drainage connector main body 54b and can swing, and the washing tank side drainage connector outlet 54e is normally closed. is doing.
In such a form, the valve body swings in a direction that follows the direction of fluid flow, and the valve body and the water stop plate are brought into close contact with each other to exert a water stop function. Normally, the connector water stop valve 58 is in close contact with the hole-shaped cleaning tank side drainage connector outlet 54e formed at the tip of the cleaning tank side drainage connector main body 54b, so that the drainage is being drained. It is installed in the direction that stops water.
However, if an external force in the direction opposite to the flow of the fluid is applied to the valve body, the fluid can flow without any problem.

  The cleaning tank-side drainage connector water stop valve 58 utilizes such a principle, and when the cleaning tank-side drainage connector 54 and the main body-side drainage connector 55 are connected, the main body-side drainage connection. The shaft 62a formed on the main body side drainage connector water stop plate 62 mounted inside the tool main body 55a applies an external force to the washing tank side drainage connector water stop valve 58 so that drainage flows (see FIG. 20), in a state where the cleaning tank side drainage coupler 54 and the main body side drainage coupler 55 are separated, the water stop function is exhibited (see FIG. 19).

In the first place, it is the drainage pump 51 that gives power (flow) to the washing water in order to drain the water. The drainage pump 51 is often a centrifugal pump type that uses an electric motor as a power source. In the pump type, even after the power supply to the electric motor is stopped, it may take some time until the rotation is completely stopped by the action of the inertial force.
Therefore, the drainage of the cleaning tank side drainage connector main body 54b that occurs when the drawer operation is performed during drainage and the cleaning tank side drainage coupling tool 54 and the main body side drainage coupling tool 55 are separated from each other is taken into consideration. There is a need.
The action of the washing tank side drainage connector stop water valve 58, which is the above-described stop valve, works very effectively to solve such a problem unique to the drainage mechanism 52.

The operation principle and function of the other main body side drainage connector water stop valve 61 and the main body side drainage connector water stop plate 62 are the same as those of the washing tank side drainage connector water stop valve 58.
However, the direction in which it is installed is the direction in which the water stop function is exhibited only when the drainage flows backward.
Although it is usually difficult to imagine, the backflow of house drainage is not without it.
The function of the main body side drainage connector water stop valve 61, which is a water stop valve described above, works very effectively to solve such a problem unique to the drainage mechanism 52.

Next, FIGS. 24 to 29 show a state in which the displacement of the cleaning tank side drainage connector 54 and the main body side drainage connector 55 is absorbed along with the displacement of the male guide body and the female guide body. This will be explained based on.
24 to 26 show a lower half section of the cleaning tank side drainage connector 54 and the main body side drainage connector 55, and FIGS. 27 to 29 show the cleaning tank side drainage connector 54 and the main body side drainage connector. A cross section of the upper half with 55 is shown.
The washing tank 3 is slid toward the dishwasher main body 2, and the washing tank side drainage connector movably attached to the washing tank 3 is attached to the main body side drainage coupler 55 fixed to the dishwasher body 2. As 54 approaches, first, the substantially conical tip of the cleaning tank side drainage connector male guide body 54d of the cleaning tank side drainage connector 54 is connected to the main body side drainage connector female guide body 55d. It contacts the inner peripheral surface (see FIGS. 24 and 27), and is then guided by the inner peripheral surface of the main body side drainage connector female guide 55d so that the cleaning tank side drainage connector male guide 54d is vertically moved in the figure. The substantially conical tip of the washing tank side drainage connector male guide body 54d is positioned toward the main body side drainage connector female guide body 55d.

At this time, the cleaning tank side water supply coupler main body 54b of the cleaning tank side water supply coupler 54 is also positioned toward the center of the main body side drainage coupler main body 55a of the main body side drainage coupler 55 (FIGS. 25 and 25). 28).
Finally, the cleaning tank side drainage connector male guide 54d is inserted into the main body side water supply connector female guide 55d. Accordingly, the cleaning tank side drainage connector main body 54b is fitted to the main body side drainage connector main body 55a without being displaced, and the cleaning tank side drainage coupler 54 is connected to the main body side drainage connector 55 ( (See FIG. 26 and FIG. 29).
At this time, the cleaning tank side drainage connector stop water valve 58 of the cleaning tank side drainage connector 54 is swing-moved by the shaft 62a of the main body side drainage connector 55, and the cleaning tank side drainage connector outlet 54e is opened.
Further, the main body side water supply coupler stop water valve 61 of the main body side drain coupler 55 is swing-moved by the drainage and opened.

(Effect of drainage mechanism of Embodiment 1)
As described above, the dishwasher 1 according to the first embodiment includes the washing tank side drainage connector 54 movably provided in the washing tank 3 and the main body side drainage coupler 55 provided in the dishwasher body 2. The drainage mechanism 52 is configured, and as the washing tub 3 slides back and forth with respect to the dishwasher main body 2, the washing tub side drainage connector 54 and the main body side drainage connector 55 are connected and disconnected. The drainage channel is opened and closed.
And the washing tank side drainage connector 54 movably provided in the washing tank 3 is attached to the trumpet-shaped tip of the main body side water supply coupler body 55 a of the main body side drainage coupler 55 provided in the dishwasher body 2. By moving and connecting the tip of the washing tank side drainage connector main body 54b, both are connected to a concentric position.
The cleaning tank side drainage connector 54 is provided with two male guide bodies 54d, the main body side drainage connector 55 is provided with two female guide bodies 55d, and guides for both male and female guide bodies 54d and 55d. By utilizing the operation, the tip of the cleaning tank side drainage connector main body 54b is further connected to the concentric position with the trumpet-shaped tip of the main body side drainage connector main body 55b.
Further, a drain water stop packing 60 formed of an elastic material is attached to the front end of the main body side drainage connector main body 55a with a drain water stop gasket holder 59, and the front end of the main body side water supply coupler main body 55a and the cleaning tank side drainage coupler. Water stoppage is performed by interposing a drain water stop packing 60 at the time of connection with the tip of the main body 54b.

Further, the drain stop water packing 60 is provided with a lip portion 60a that adheres in a watertight manner to the tip of the washing tank side drain connector main body 54b, so that the water stop effective range of the drain stop gasket 60 is set to be relatively long. It is possible to absorb the positional deviation in the front-rear direction of the coupler.
Further, by setting the effective water stoppage range of the drainage water stop packing 60 longer than the storage state detection range of the door opening / closing detection device 9, the drainage stop operation is stopped after various electrical components stop operating due to the drawer operation of the cleaning tank 3. The water packing 60 is separated from the washing tank side drainage connector outlet 54e, and the leakage of the connecting portion, which is a major problem of the drainage mechanism 52, can be reliably prevented.
Furthermore, the water stop valves 58 and 61 that perform the water stop function in the state where both the connectors are separated are attached to both the water outlets of the washing tank side drain connector main body 54b and the main body side drain connector main body 55a. Accordingly, it is possible to reliably prevent the leakage of the connecting portion, which is a major problem of the drainage mechanism 52.
Further, since the cleaning tank side drainage connector 54 and the main body side drainage connector 55 are arranged above the level of the cleaning water stored in the cleaning tank 3, the cleaning water stored in the cleaning tank 3 is discharged from the drain pump 51. In addition, it is prevented that the cleaning tank side drainage coupler 54 and the main body side drainage coupler 55 flow out to the outside.

(Effects of water supply mechanism and drainage mechanism of Embodiment 1)
In the dishwasher of the first embodiment, a water supply mechanism 33 is configured by the main body side water supply connector 34 provided in the dishwasher main body 2 and the cleaning tank side water supply connector 35 provided in the cleaning tank 3. As the washing tub 3 slides back and forth with respect to the tableware washing machine main body 2, the main body side water supply connector 34 and the cleaning tub side water supply connector 35 are connected and disconnected to open and close the water supply channel. When the main body side water supply connector main body 34 and the cleaning tank side water supply connector main body 35 are connected, the water supply / water stop packing is a water stop means formed of an elastic material that stops the connection portion between the two connection portions. 40 is provided to stop water, and the drainage mechanism 52 includes a washing tank side drainage connector 54 provided in the washing tank 3 and a main body side drainage connector 55 provided in the dishwasher body 2. Constructed, the washing tub 3 is in front of the dishwasher body 2 The main body side drainage coupler 55 and the cleaning tank side drainage coupler 54 are connected and disconnected to open and close the drainage path, and the drainage channel is opened and closed. When the drainage connector main body 54 is connected to the drainage connector main body 54, the drainage waterstop packing 60, which is a water stop means formed of an elastic material that stops the connection portion, is provided at the connection portion between the two. Water stoppage is surely performed when the water supply connector 34 and the cleaning tank side water supply connector 35 are connected and when the main body side drainage connector 55 and the cleaning tank side drainage connector 54 of the drainage mechanism 52 are connected.
Moreover, since the main body side water supply connector 34 and the cleaning tank side water supply connector 35 of the water supply mechanism 33 can be disconnected, and the main body side drain connector 55 and the cleaning tank side drain connector 54 of the drainage mechanism 52 can be disconnected. The maintenance of the washing tank 3 and the parts provided in the washing tank 3 is facilitated, and there is no problem of water leakage due to breakage of the water supply hose and drainage hose as in the prior art, and the space in the dishwasher main body 2 is effective. To make it available.

FIG. 30 is a block diagram showing an electrical configuration of the control device of the dishwasher.
The function of the control apparatus 18 is demonstrated based on FIG.
The control device 18 includes a CPU (central processing unit) that performs overall control of the operation of the dishwasher 1, a ROM that stores programs executed by the CPU and various fixed data, and various data when the CPU executes the programs. Is constituted by a circuit having a main part of a RAM functioning as a work memory for temporarily storing the memory.
This control device 18 includes user instructions from the operation unit 5 (including the display unit 5a if it is integrated with the display unit 5a by a touch panel or the like) and each detection device (door open / close detection device 9, water level detection device 20 and Based on the signal from the water temperature detecting element 21), the cleaning pump 13, the drainage pump 51, the hot water heater 14, the blower 15, the water supply valve 32 and the like are controlled.
That is, the control device 18 executes a cleaning operation while controlling various devices based on an instruction from the user and preset information.

(Basic operation of dishwasher)
The basic operation of the dishwasher according to Embodiment 1 of the present invention will be described.
First, the handle 4 provided on the front door 6 is grasped by hand, the washing tub 3 is pulled out from the dishwasher main body 2, and an object 98 to be washed and dried is mounted in the washing tub 3 from the tableware storage opening 3 a. The dish is placed on the tableware basket 10, an appropriate amount of detergent is put in the vicinity thereof, and the washing tank 3 is stored in the tableware washing machine main body 2. At this time, the front door 6 is also closed. Before storing the washing tub 3 in the dishwasher main body 2, the dish storage port 3 a of the washing tub 3 is closed with the open / close lid 11 mounted in the dishwasher main body 2.

Next, the power switch 19a provided in the operation unit 5 is pressed and the start / pause switch 19b is pressed to start the operation of the device. The door opening / closing detection device 9 is used in the washing tub 3 in the dishwasher main body 2. Unless it is detected that the front door 6 is closed along with it, various electrical components are not operated. This is a device for ensuring safety.
It should be noted that the control device 18 is in charge of the overall control of the device including the above-described control, and various electrical components are controlled by transmitting the information, and the cleaning, rinsing, heating rinsing, and drying steps are sequentially performed.

When the cleaning process which is the first process is started, the water supply valve 32 is opened to supply water into the cleaning tank 3. At this time, the water level in the cleaning tank 3 is monitored by the water level detection device 20, and the control device 18 closes the water supply valve 32 when detecting that the water level has reached a predetermined level.
Next, the controller 18 energizes the water heater 14 to heat the stored wash water, energizes the wash pump 13, applies pressure to the wash water, rotates the rotary nozzle 12, and causes the object 98 to be cleaned. Spray the wash water.
The cleaning is performed while circulating the stored cleaning water. The cleaning water dropped to the bottom of the cleaning tank 3 is collected, pressure is applied again by the cleaning pump 13, and the object 98 is cleaned by the rotary nozzle 12. It repeats spraying water.

The cleaning water temperature is monitored by the water temperature detecting element 21. When it is detected that the temperature has reached a predetermined temperature, the control device 18 stops the water heater and stops energization of the heater 14.
The washing water temperature is usually set to a temperature at which the ability of the detergent can be maximized, and is set to about 60 ° C. in general.
When the cleaning process is started and a predetermined time elapses, the control device 18 stops energization of the water heater 14 and the cleaning pump 13, energizes the drain pump 51, and sets the cleaning water stored in the cleaning tank 3 as tableware. Drain the washing machine 1 outside.
Thereby, the cleaning process is completed.

Subsequently, the rinsing process is started, but the basic operation is almost the same as the cleaning process. First, the control device 18 opens the water supply valve 32 to supply water into the cleaning tank 3, and the water level detection device 20. It is detected that a predetermined water level has been reached, and the water supply valve 32 is closed.
Next, the cleaning pump 13 is energized, pressure is applied to the rinsing water, the rotating nozzle 12 is rotated, and the rinsing water is sprayed onto the object 98 to be cleaned.
When a predetermined time elapses, the control device 18 stops energization of the cleaning pump 13 and energizes the drainage pump 51 to drain the rinse water stored in the cleaning tank 3 to the outside. Such a rinsing process is repeated several times.
In addition, you may add the heating rinse process which heats rinse water with the water heater 14 in the rinse process repeated several times.

When the above washing and rinsing steps are completed, the final drying step is started.
First, the control device 18 energizes the blower 15, energizes the drying heater 16, heats the air blown by the blower 15, changes the air into hot air, and sprays it onto the object to be cleaned 98 from the air passage 17.
Next, the warm air sent from the air passage 17 passes through the inside of the washing tub 3 and is discharged to the outside of the dishwasher 1 from the exhaust port 22 provided in the upper part of the front door 6.

Embodiment 2. FIG.
Embodiment 2 of the present invention will be described below with reference to the drawings.
FIG. 31 is a schematic longitudinal sectional view showing a state where the connection of the water supply mechanism and the drainage mechanism using the water stop packing of the dishwasher according to the second embodiment of the present invention is completed, and FIG. 32 is the water stop packing of the same dishwasher. FIG. 33 is a schematic longitudinal sectional view showing a state in the middle of connection between the water supply mechanism and the drainage mechanism using the water-stopping packing of the dishwasher. FIG. 34 is a schematic longitudinal sectional view showing a state in which a ring spring is attached to the lip portion of the water-stop packing of the dishwasher.
Although the dishwasher of Embodiment 1 mentioned above differs in the structure of a water supply mechanism and a drainage mechanism, the dishwasher of this Embodiment 2 has the same structure of a water supply mechanism and a drainage mechanism, Therefore Water stop Since the structure of the packing communicates with both the water supply mechanism and the drainage mechanism, the description will be made focusing on the function without being limited by the difference between the water supply and the drainage.

(Connector)
As shown in FIG. 31, the connector 72 of the dishwasher according to the second embodiment is fixed to the rear side of the washing tub 2 and the main body side connector 73 fixed to the rear side of the dishwasher main body 2. The cleaning tank side connector 74 and the water stop packing 71 for preventing water leakage at the connecting portion of the two connectors.
The connector 72 is a system that connects and disconnects water passages as the washing tub 3 slides in the front-rear direction relative to the dishwasher body 2.
The water stop packing 71 may be attached to either the main body side connector 73 or the cleaning tank side connector 74, but here, the water stop packing 71 is assumed to be attached to the main body side connector 73. I will proceed with the explanation.

(Main body side connector and cleaning tank side connector)
As shown in FIG. 31, the main body side connector 73 is provided at the rear end side of the main body side connector main body 73a having a large diameter cylindrical shape and the main body side connector main body 73a, and is provided in the dishwasher main body 2. For example, a main body side connector water passage 73b connected to a water supply pipe 76 connected to the water supply valve 32, which is a functional component, and a packing for mounting a water stop packing 71 provided on the distal end side of the main body side connector main body 73a. It is comprised from the mounting hole 73c.
As shown in FIG. 31, the cleaning tank side connector 74 includes a cylindrical cleaning tank side connector main body 74a inserted into the main body side connector main body 73a in a loosely fitted state, and a cleaning tank side connector main body 74a. A cleaning tank side connector water stop plate 74b provided on the outer periphery and a cleaning tank side connector main body 74a provided at the rear end side of the washing tank side connector 74a. It is comprised from the washing tank side coupling tool water flow port 74c connected to the water pipe 76. FIG.
The tip of the cleaning tank side connector main body 74a has a surface, and the diameter on the tip side is smaller than the inner diameter of the lip portion 71a of the water-stop packing 71 described later.

(Water stop packing)
As shown in FIG. 31, the water-proof packing 71 made of a soft material to be attached to the main body side connector 73 is provided with a water-stop packing body 71 a formed of an elastic body in a trumpet shape, and one end side of the water-stop packing main body 71 a. A lip portion 71b that is formed and is brought into close contact with the cylindrical cleaning tank side connector main body 74a of the cleaning tank side connector 74, and the other end side of the water blocking packing main body 71a. A mounting body 71c having a U-shaped cross section mounted in the packing mounting hole 73c and a seal body 71d formed outside the mounting body 71c.
In addition, the water stop of the mounting part of the mounting body 71c of the water stop packing 71 is performed by utilizing the softness of the material itself.

Although shown also in the said Embodiment 1, the connection tool 72 comprised by the main body side connection tool 73 and the washing tank side connection tool 74 is a position produced when the washing tank 3 is accommodated in the dishwasher main body 2 inside. A device to absorb the deviation is required.
This is because the method of preventing water leakage at the connecting portion of both connectors is that the outer peripheral surface of the cleaning tank side connector main body 74 a formed on the cleaning tank side connector 74 is formed on the lip portion 71 b formed on the water stop packing 71. In order to ensure this, the concentricity of both couplings is firmly taken, no biased force is applied to the lip portion 71b, and the lip portion 71b is abnormal. This is because it is necessary to prevent deformation.
In the first embodiment, the male and female guide bodies formed on both connectors are utilized, the cleaning tank side connector 74 is moved, and the concentric position of both connectors is obtained. The water stop packing main body 71a formed of an elastic body formed on the water stop packing 71 shown in FIG.

Next, misalignment absorption, water stoppage, and water dripping prevention for the second embodiment will be described.
As shown in FIG. 32, when the connection between the main body side connector 73 and the cleaning tank side connector 74 is started, the cleaning tank side connector main body 74a formed in the cleaning tank side connector 74 becomes the main body side connector. The tip of the washing tank side connector main body 74a reaches the lip portion 71b of the water blocking packing 71 as shown in FIG.
At this time, even if there is a positional shift between the two connecting tools, the tip of the cleaning tank side connecting tool main body 74a is chamfered, and the diameter of the tip is smaller than the inner diameter of the lip portion 71b. Therefore, the leading end of the cleaning tank side connector main body 74a is drawn in as if the inner diameter of the lip portion 71b is caught.
If the shape of the water-stopping packing 71 is a simple donut shape, it is conceivable that the lip portion 71a of the core is pulled by an amount corresponding to the misalignment of the two couplers and deformed into an elliptical shape.

However, the water-stopping packing 71 is formed with a packing body 71a formed of an elastic body between the mounting body 71c mounted in the packing mounting hole 73c formed in the body side connector 73 and the lip portion 71a. Therefore, the packing main body 71a is movable so as to bend, and the lip portion 71b moves (shakes) regardless of the mounting body 71c, and the shape of the essential lip portion 71b is maintained, and the washing tank side connector main body 74a is maintained. It is possible to follow the movement of the position.
Thereby, the water stop packing 71 can be made to fully function, and the water leakage of the connection part of both connection tools can be prevented reliably.

Next, as shown in FIG. 31, the sealing body 71 d formed on the water stop packing 71 attached to the main body side connector 73 is replaced with a cleaning tank side connector water stop plate formed on the cleaning tank side connector 74. The 2nd water stop function established by making it closely_contact | adhere to 74b is demonstrated.
This is provided to compensate for the water stoppage by the lip portion 71b touched earlier, and this method has a small load on the connection and disconnection operations of both connectors and satisfies the water stop function. Therefore, this is an effective method as the second water stop function.

If the difference between the diameter of the sealing body 71d and the diameter of the cleaning tank side connector water stop plate 74b is large with respect to the positional deviation that occurs when the cleaning tank 3 is stored inside the dishwasher body 2, the vertical direction It can cope with the positional deviation of the two axes in the left-right direction, and can cope with the positional deviation in the front-rear direction by taking a large deflection amount of the seal body 71d.
Thereby, the water stop packing 71 can be made to fully function, and the water leakage of the connection part of both connection tools can be prevented reliably.
FIG. 34 shows a state in which a ring spring 75 used for an oil seal or the like is mounted around the lip portion 71b of the water-stop packing 71 of the dishwasher according to the second embodiment.
In this way, by attaching the ring spring 75 around the lip portion 71b of the water blocking packing 71, it is possible to further maintain the shape of the lip portion 71b.

35 to 38 show a state where the connection of the water supply mechanism and the drainage mechanism using the water stop packing of another form of the dishwasher of the second embodiment is completed, a state where the connection is started, and a state during the connection, respectively. FIG. 38 is a schematic longitudinal sectional view showing a state in which a ring spring is attached to a lip portion of a water-stopping packing according to another embodiment of the dishwasher.
The still water packing 71 of another form of the dishwasher according to the second embodiment has a packing body 71a formed in a bellows shape, and the lip portion 71b, the mounting body 71c, and the seal body 71d, which are other members, are configured as follows. It is the same as the water stop packing 71 shown in FIGS.
Thus, by forming the packing main body 71a of the water-stopping packing 71 into a bellows shape, it is possible to further absorb the misalignment between the two connectors.
Further, as shown in FIG. 38, by attaching a ring spring 75 around the lip portion 71b of the waterstop packing 71 having the bellows-like packing body 71a, the shape of the lip portion 71b can be further maintained. .

(Effect of Embodiment 2)
As described above, the connector 72 of the dishwasher 1 according to the second embodiment is fixed to the main body side connector 73 fixed to the rear side of the dishwasher main body 2 and the rear side of the washing tub 2. The washing tub side connector 74 and a water stop packing 71 for preventing water leakage at the connecting portion of the two linking devices, and the washing tub 3 slides in the front-rear direction relative to the dishwasher body 2. Accordingly, the main body side connector 73 and the cleaning tank side connector 74 are connected and disconnected to open and close the water supply / drainage channel.
And, in the washing tub 3, the lip portion 71 b of the water-stop packing 71 attached to the packing attachment hole 73 c of the large-diameter body-side connector body 73 a of the body-side connector 73 fixed to the dishwasher body 2 When the distal end of the cleaning tank side connector main body 74a of the fixed cleaning tank side connector 74 reaches and is further pushed in, even if a positional shift occurs between the two connectors, the mounting body 71c of the water stop packing 71 and The trumpet-shaped packing body 71a formed of an elastic body is movable between the lip portion 71a so as to bend, and the lip portion 71b keeps its shape while following the positional deviation of the cleaning tank side connector body 74a. Therefore, the water-stopping packing 71 can sufficiently function, and water leakage at the connecting portions of both the connecting tools can be reliably prevented.
Moreover, the 2nd water stop function formed by making the sealing body 71d formed in the water stop packing 71 closely_contact | adhere to the washing tank side connector water stop plate 74b formed in the washing tank side connector 74 was provided. Thereby, the water stop by the lip part 71a can be supplemented.
In the second embodiment, the main body side connector 73 is fixed to the dishwasher main body 2, and the cleaning tank side connector 74 is fixed to the cleaning tank 3, and the water supply mechanism is described. It goes without saying that can also be used.

Embodiment 3 FIG.
39 is a rear view showing a part of the water supply mechanism in the air passage of the dishwasher according to Embodiment 3 of the present invention. FIG. 40 shows a part of the water supply mechanism in the air passage of the dishwasher. FIG. 41 is a schematic longitudinal sectional view showing a part of another type of water supply mechanism in the air passage of the dishwasher. (Forming the opening downward)
About the basic composition of the dishwasher which concerns on Embodiment 3 of this invention, it abbreviate | omits about the content of the structure same as the structure demonstrated in Embodiment 1, About the part relevant to the characteristic matter of this Embodiment 3 Only the details will be described.

In the third embodiment, a part of the water supply mechanism is configured in the air passage that guides the drying air of the dishwasher 1 to the washing tank air outlet.
A blower 15 for generating drying air for drying the object to be cleaned 98, a drying heater 16 for heating the drying air, a casing 81 containing the blower 15 and the drying heater 16, and the cleaning tank 3. A drying means is constituted by the air passage 17 that guides the drying air to the formed cleaning tank air outlet 3d. The air blowing path 17 of the drying means is fixed to the rear side of the cleaning tank 3.
In addition, if a drying means is taken large, the exhaust port 22 provided in the upper part of the front door 6 for discharging | emitting the high temperature humid air produced inside the washing tank 3 to the exterior of the dishwasher 1 may be included. I can say that.

Here, the air passage 17 will be described in more detail.
The cleaning water is stored in the cleaning tank 3, but the casing 81 containing the electrical components is not so bad that the cleaning water does not adversely affect the electrical components (the drying heater 16 and the blower 15). It is arranged at a relatively high position in the cleaning tank 3.
The air passage 17 is mounted between the casing 81 and the cleaning tank air outlet 3d and guides the dry air to the cleaning tank 3, and is formed in a cylindrical shape from the top to the bottom in accordance with the arrangement conditions described above.
It should be noted that only the lower end of the air passage 17 is seen inside the cleaning tank 3, and most of the air passage 17 is disposed outside the rear wall of the cleaning tank 3.

(Main body side water supply connector and cleaning tank side water supply connector constituting the water supply mechanism)
In the third embodiment, the water supply mechanism is configured as follows.
The water supply mechanism of the third embodiment is also the same as that of the first and second embodiments in that the water supply channel is connected and disconnected as the washing tub 3 slides in the front-rear direction with respect to the dishwasher main body 2. . The main body side water supply coupler 34 constituting one of the water supply mechanisms of the third embodiment is directly connected to the water supply valve outlet 32a of the water supply valve 32 that opens and closes the water supply path as shown in FIGS. A main body side water supply connector inlet 34a, a cylindrical main body side water supply connector main body 34b having a water stop plate on the outer periphery thereof, integrally provided with the main body side water supply connector inlet 34a, and a main body side water supply connector main body 34b. It is comprised by the main body side water supply connector attachment body 34c provided in the water stop board.
And the main body side water supply connector 34 is fastened to the main body side water supply connector attachment body 34c with a screw penetrating the dishwasher main body 2, and is fixed to the rear side of the dishwasher main body 2.

As shown in FIG. 40, the cleaning tank side water supply coupler 35 constituting the other side of the water supply mechanism of the third embodiment includes a cleaning tank side water supply coupler inlet 35a directly formed in the air passage 17, and a cleaning tank side water supply. It is comprised by the water supply stop water packing 71 attached to the connector inlet 35a for preventing the water leakage between the main body side water supply connector main body 34b and the washing tank side water supply connector main body 35a.
In addition, in the attachment part of the ventilation path 17 utilized also as the washing tank side water supply connector 35, since the water stop structure is taken so that the washing water stored in the washing tank 3 may not leak, a guide body is used. It is difficult to take a method of absorbing misalignment that makes use of the coupling tool.
Accordingly, the water supply / water-stopping packing 71 is formed of an elastic body that can move between the mounting body 71c of the water supply / water-stopping packing 71 and the lip portion 71b so as to follow the positional deviation of the main body side water supply connector main body 34b. The sealed packing main body 71c is provided, and the configuration is the same as the water-stop packing 71 shown in the second embodiment.

Next, the reason why the air passage 17 is used for the washing tank side water supply connector 35 will be described.
As shown in the other embodiments, in order to configure the water supply mechanism 33, it is necessary to provide some dedicated component having the function of a water passage. In the first embodiment, this is the cleaning tank side water supply connector. Although it was 35, the number of parts increased and the number of connection points where water leakage was a concern was increased, so it was said that the number of parts should be as small as possible.

In consideration of the above, the air passage 17 is a part that is also mounted on the conventional dishwasher 1 and has a water stop structure in advance. Even if a water inlet formed for the tool body 35a is provided, the washing tank can be used in the parts group constituting the dishwasher 1 without worrying about leakage of the washing water as long as the position in the height direction is taken into consideration. This is because there are no obstacles in using the side water supply coupler 35.
As described above, the position where the cleaning tank side water supply connector main body 35a is formed must be above the water level of the cleaning water from the viewpoint of preventing water leakage. Since it is outside the rear wall of the cleaning tank 3 which is not known at all, there is no worry that the water supply / stop water packing 71 attached to the cleaning tank side water supply connector main body 35a is damaged by the cleaning of the user or the like.

Finally, the opening direction of the front end of the main body side water supply coupler main body 34b of the main body side water supply coupler 34 directly connected to the water supply valve outlet 32a will be described.
As described above, electrical components such as the drying heater 16 and the blower 15 are arranged above the air flow path 17 upstream, and these electric components are very hateful of water.
Therefore, as shown in FIG. 41, as the main body side water supply coupler 34 constituting a part of another form of the water supply mechanism, an opening at the front end of the main body side water supply coupler main body 34b is formed downward and dried. The washing water is prevented from flowing to the electric parts such as the heater 16 and the blower 15.
Since the operation of the dishwasher 1, the operation of the water supply mechanism 33, and the operation of the water supply water stop packing 71 have been described in the first and second embodiments, a description thereof will be omitted.

(Effect of Embodiment 3)
As described above, the dishwasher 1 according to the third embodiment has the water supply mechanism by directly forming the cleaning tank side water supply coupler 35 in the air passage 17 that guides the dry air to the cleaning tank air outlet 3d. The number of parts constituting 33 can be reduced, and the number of connection points where water leakage is a concern can be reduced.
Further, the position of the cleaning tank side water supply coupler 35 formed in the air passage 17 is set above the water level of the cleaning water, and this position is outside the rear wall of the cleaning tank 3 which is completely unknown to the user. In addition, leakage of cleaning water can be prevented, and damage to the water supply seal 71 can be prevented.
In addition, since the opening at the front end of the main body side water supply coupler main body 34b of the main body side water supply coupler 34 is formed downward, it is possible to prevent failure of electrical components such as the drying heater 16 and the blower 15. it can.

Embodiment 4 FIG.
42 is a front view showing a part of the drainage mechanism in the drain trap of the dishwasher according to Embodiment 4 of the present invention, and FIG. 43 is a part of the drainage mechanism in the drain trap of the dishwasher. FIG. 44 is a schematic longitudinal sectional view of the rear part of the dishwasher showing a part of the drainage mechanism in the drain trap of the dishwasher.
About the basic composition of the dishwasher which concerns on Embodiment 3 of this invention, it abbreviate | omits about the content of the structure same as the structure demonstrated in Embodiment 1, About the part relevant to the feature matter of this Embodiment 4 Only the details will be described.

(Drain trap)
In the fourth embodiment, a part of the drainage mechanism is configured in the drain trap of the dishwasher 1.
The drain trap 56 is provided for the purpose of preventing the invasion of bad odors and pests entering from sewage or the like. , It demonstrates its function.
In addition, the height of this stored drainage is called the sealing depth, and there is a legal regulation about the height.

(Drainage mechanism side drainage connector and body side drainage connector)
The form of the drainage mechanism 52 is the same as that in which the washing tank 3 slides in the front-rear direction with respect to the dishwasher main body 2 and connects and disconnects the drainage channel, and the washing tank side that constitutes one of them The drainage connector 54 is configured in the same manner as that described in the first embodiment.

As shown in FIGS. 42 to 44, the main body side drainage connector 55 constituting the other side is drained on the main body side drainage connector body 55a formed directly on the drain trap 56 and inside the front end of the main body side drainage coupler body 55a. Drain water seal 60 mounted using water stop packing holder 59, main body side drainage connector water stop valve 61 mounted inside drain trap 56 and having a function of preventing backflow, and main body side drainage connector body 55a, a main body side drainage connector water stop plate 62 having a shaft 62a, a drain trap attachment body 56b used for attachment to the dishwasher main body 2, and a washing tank side drainage connector 54. It is comprised by the main body side drainage connector guide body 55d for obtaining the concentric position of both connectors at the time of connection.
The main body side drainage connector 55 is fastened to the drain trap attachment body 56b with a screw penetrating the dishwasher main body 2 and fixed to the rear side of the dishwasher main body 2.

Next, the reason why the drain trap 56 is used in the main body side drain connector 55 will be described.
As shown in the other embodiments, in order to configure the drainage mechanism 52, it is necessary to provide some special parts that have the function of a water passage. However, since it increases the number of parts and increases the number of connection points where water leakage is a concern, the number of parts should be as small as possible.
In consideration of the above, the drain trap 56 is a part that is also mounted on the conventional dishwasher 1. This is because it is a part that has no obstacle when used as the tool 55.

(Prevents dripping)
Regarding the method for preventing water dripping from the washing tank side drainage connector main body 54b and the main body side drainage connector main body 55a, the mounting position of the main body side drainage connector water stop valve 61 is inside the drain trap 56, and the main body The difference is that the side drainage connector water stop plate 62 has the function of the wall forming the drain trap 56, and functions in the same manner as described in the first embodiment.
Since the operation of the dishwasher 1, the operation of the drainage mechanism 52, and the operation of the drainage water blocking packing 60 have been described in the first embodiment, a description thereof will be omitted.

(Effect of Embodiment 4)
As described above, the dishwasher 1 of the fourth embodiment is formed by directly forming the main body side drainage connector 55 on the drainage trap 56 provided for the purpose of preventing the invasion of malodors and pests. The number of parts constituting the drainage mechanism 52 can be reduced, and the number of connection points where water leakage is a concern can be reduced.

Embodiment 5 FIG.
45 is a schematic longitudinal sectional view showing the configuration of the dishwasher according to Embodiment 5 of the present invention, FIG. 46 is a front view of the dishwasher, and FIG. 47 is the operation of the slide shaft of the tank opening device of the dishwasher. FIG. 48 is a schematic longitudinal sectional view showing a state immediately before the water supply mechanism and the drainage mechanism are separated by sliding the cleaning tank forward, and FIG. 48 shows the front of the cleaning tank by the operation of the slide shaft of the tank opening device It is a schematic longitudinal cross-sectional view which shows the state which slidably moved and the water supply mechanism and the drainage mechanism were separated.
About the basic composition of the dishwasher which concerns on Embodiment 5 of this invention, it abbreviate | omits about the content of the structure same as the structure demonstrated in Embodiment 1, About the part relevant to the characteristic matter of this Embodiment 5 Only the details will be described.

In the fifth embodiment, a tank opening device 86 for providing power to the washing tub 3 when being pulled out is provided below the washing tub 3 in order to improve the operability of the washing tub 3 in the dishwasher 1. is there.
That is, the dishwasher 1 according to the fifth embodiment has an “OPEN” button 88 provided on the operation unit 5 of the front door 6 and a tank opening for supplying power to the washing tank 3 when the washing tank 3 is pulled out. A device 86 is provided.
Of course, the dishwasher 1 is configured with many other functional parts, but the description thereof is omitted here.

(Tank opening device)
The tank opening device 86 includes a slide shaft 87 that slides back and forth by a pinion gear operation by rotating a pinion connected to a motor. When pulling out from the machine body 2, power for assisting the user's drawing work is applied to the cleaning tank 3.

(Basic operation of dishwasher)
A basic operation of the dishwasher according to the fifth embodiment of the present invention will be described.
Here, only the portions related to the characteristic items of the fifth embodiment of the present invention will be described in detail.

First of all, the drawer operation of the standard dishwasher 1 described so far was performed by grasping the handle 4 provided on the front door 6 by hand. In order to further improve the drawer operability. In the dishwasher 1 to which the tank opening device 86 is added as in the fifth embodiment, the tank opening device 86 is operated by pushing the “OPEN” button 88 provided on the operation unit 5, and the drawer operation is performed. Is done.
That is, when the user presses the “OPEN” button 88 on the operation unit, an operation signal indicating that is output to the control device 18. The control device 18 first stops the operation of the water supply valve 32 and the drainage pump 51, then drives the motor in the forward rotation direction, and the forward rotation of the motor causes the slide shaft 87 to jump out. The slide power is applied.
When the pop-out position detection device detects that the slide shaft has reached a predetermined pop-out position, the control device 18 stops the forward rotation of the motor.
Next, when the detection signal from the pop-out position detector disappears, the control device 18 drives the motor in the reverse rotation direction, and the reverse rotation of the motor causes the slide shaft to slide in the original position direction.
The control device continues the reverse rotation of the motor until the standby position detection device detects that the slide shaft has reached a predetermined standby position, and stops the motor when receiving a detection signal from the standby position detection device.
This operation is the same not only when starting operation but also when adding tableware performed during operation.
In accordance with this movement, the water supply mechanism 33 and the drainage mechanism 52 described in the other embodiments are separated.
The operation of the dishwasher 1 proceeds from this point on, but the description thereof is omitted here.

Accordingly, in this type of dishwasher 1, since a series of drawer operations are performed under the control of the control device 18, when the “OPEN” button 88 is pressed, various electrical components such as the water supply valve 32 and the drainage are provided. The operation of the pump 51 can be stopped, and the time from when the “OPEN” button 88 is pressed to when the operation of drawing out the cleaning tank 3 is started can be freely set.
This is different from the standard dishwasher 1 in which the operation of various electrical components is stopped only by the door opening / closing detection device 9, and the washing tub 3 slides back and forth with respect to the dishwasher body 2. Accordingly, the water supply mechanism 33 and the drainage mechanism 52 for connecting and disconnecting the water passages are effectively used.
The tank opening device 86 uses a power transmission mechanism using a rack and a pinion. However, as other power transmission mechanisms, for example, a cam mechanism or a linear mechanism can be used.

(Effect of Embodiment 5)
As described above, the dishwasher 1 according to the fifth embodiment includes the water supply mechanism 33 and the drainage that connect and disconnect the water passages as the washing tub 3 slides in the front-rear direction with respect to the dishwasher main body 2. By using the mechanism 52 and the tank opening device 86 that can perform the drawer operation of the washing tank 3 by pressing the “OPEN” button 88, the drawer operation, that is, the water supply can be performed from the operation stop control of various electrical components accompanying the drawer operation. By providing a time to wait for the complete stop of various electrical components before the mechanism 33 and the drainage mechanism 52 are disconnected, it is possible to reliably prevent leakage of the connecting portion, which is a major problem of the water supply mechanism 33 and the drainage mechanism 52. be able to.
In addition, it is still effective if the set value of the waiting time shown above is set to the time until the rotation of the drainage pump 51 is completely stopped.

(Embodiment 1)
The schematic longitudinal cross-sectional view which shows the structure of the dishwasher of Embodiment 1 of this invention. The front view of the dishwasher. Sectional drawing of the back surface part which shows the structure of the dishwasher. The perspective view of the system kitchen which shows an example of the installation state of the dishwasher. The perspective view of the system kitchen which shows the state by which the washing tank of the same dishwasher is pulled out. The schematic longitudinal cross-sectional view which shows the state from which the water supply mechanism of the dishwasher was cut off. The schematic longitudinal cross-sectional view which shows the state with which the water supply mechanism of the dishwasher was connected. The perspective view which shows the decomposition | disassembly state of the water supply mechanism of the tableware washing machine. The front view which shows the main body side water supply coupling tool which comprises the water supply mechanism of the same dishwasher. The front view which shows the washing tank side water supply coupling tool which comprises the water supply mechanism of the tableware washing machine. The schematic cross-sectional view which shows the state by which the connection of the water supply mechanism of the dishwasher is started. The schematic cross-sectional view which shows the state in the middle of the connection of the water supply mechanism of the dishwasher. The schematic cross-sectional view which shows the state which the connection of the water supply mechanism of the dishwasher was completed. The schematic longitudinal cross-sectional view which shows the state by which the connection of the water supply mechanism of the dishwasher is started. The schematic longitudinal cross-sectional view which shows the state in the middle of the connection of the water supply mechanism of the dishwasher. The schematic longitudinal cross-sectional view which shows the state which the connection of the water supply mechanism of the dishwasher was completed. The schematic longitudinal cross-sectional view which shows the state by which the water supply mechanism which formed the water supply valve exit of the dishwasher like the main body side water supply coupling body was cut off. The schematic longitudinal cross-sectional view which shows the state with which the water supply mechanism which formed the water supply valve exit of the dishwasher like the main body side water supply connector main body was connected. The schematic longitudinal cross-sectional view which shows the state from which the drainage mechanism of the same dishwasher was cut off. The schematic longitudinal cross-sectional view which shows the state with which the drainage mechanism of the dishwasher was connected. The perspective view which shows the decomposition | disassembly state of the drainage mechanism of the dishwasher. The front view which shows the washing tank side drainage connector which comprises the drainage mechanism of the dishwasher. The front view which shows the main body side drainage coupling tool which comprises the drainage mechanism of the dishwasher. The schematic cross-sectional view which shows the state by which the connection of the drainage mechanism of the dishwasher is started. The schematic cross-sectional view which shows the state in the middle of the connection of the drainage mechanism of the dishwasher. The schematic cross-sectional view which shows the state which the connection of the drainage mechanism of the dishwasher was completed. The schematic longitudinal cross-sectional view which shows the state by which the connection of the drainage mechanism of the dishwasher is started. The schematic longitudinal cross-sectional view which shows the state in the middle of the connection of the drainage mechanism of the dishwasher. The schematic longitudinal cross-sectional view which shows the state which the connection of the drainage mechanism of the dishwasher completed. The block diagram which shows the electrical structure of the control apparatus of the dishwasher. (Embodiment 2) The schematic longitudinal cross-sectional view which shows the state which the connection of the water supply mechanism and drainage mechanism using the water stop packing of the dishwasher of Embodiment 2 of this invention was completed. The schematic longitudinal cross-sectional view which shows the state by which the connection of the water supply mechanism and drainage mechanism using the water stop packing of the same dishwasher is started. The schematic longitudinal cross-sectional view which shows the state in the middle of the connection of the water supply mechanism using the water stop packing of the same tableware washing machine, and a drainage mechanism. The schematic longitudinal cross-sectional view which shows the state which attached the ring spring to the lip | rip part of the still water packing of the same dishwasher. The schematic longitudinal cross-sectional view which shows the state which the connection of the water supply mechanism and drainage mechanism using the still water packing of another form of the same dishwasher was completed. The schematic longitudinal cross-sectional view which shows the state by which the connection of the water supply mechanism and drainage mechanism using the still water packing of another form of the same dishwasher is started. The schematic longitudinal cross-sectional view which shows the state in the middle of the connection of the water supply mechanism using the still water packing of another form of the same dishwasher, and a drainage mechanism. The schematic longitudinal cross-sectional view which shows the state which attached the ring spring to the lip | rip part of the still water packing of another form of the same dishwasher. (Embodiment 3) The rear view which shows what comprised a part of water supply mechanism in the ventilation path of the dishwasher of Embodiment 3 of this invention. The schematic longitudinal cross-sectional view which shows what comprised a part of water supply mechanism in the ventilation path of the dishwasher. The schematic longitudinal cross-sectional view which shows what comprised a part of water supply mechanism of another form to the ventilation path of the tableware washing machine. (Embodiment 4) The front view which shows what comprised a part of drainage mechanism in the drain trap of the dishwasher of Embodiment 4 of this invention. The rear view which shows what comprised a part of drainage mechanism in the drain trap of the same dishwasher. The schematic longitudinal cross-sectional view of the rear part of the dishwasher showing what comprised a part of drainage mechanism in the drain trap of the same dishwasher. (Embodiment 5) The schematic longitudinal cross-sectional view which shows the structure of the tableware washing machine of Embodiment 5 of this invention. The front view of the dishwasher. The general | schematic longitudinal cross-sectional view which shows the state immediately before separation of a water supply mechanism and a drainage mechanism when a washing tank slide-moves ahead by operation | movement of the slide shaft of the tank opening apparatus of the dishwasher. The schematic longitudinal cross-sectional view which shows the state by which the washing tank slide-moved ahead by the operation | movement of the slide shaft of the tank opening apparatus of the tableware washing machine, and the water supply mechanism and the drainage mechanism were cut away.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Tableware washing machine, 2 Tableware washing machine main body, 2a Front opening part, 3 Washing tank, 3a Tableware storage port, 6 Front door, 9 Door opening / closing detection apparatus, 10 Tableware basket, 13 Washing pump, 14 Water heater, 15 Blower, 17 Air supply path, 18 Control device, 20 Water level detection device, 21 Water temperature detection element, 22 Exhaust port, 31 Water supply pipe, 32 Water supply valve, 32a Water supply valve outlet, 33 Water supply mechanism, 34 Main body side water supply connector, 35 Cleaning tank side Water supply connector, 38 Water supply connection pipe, 51 Drain pump, 52 Drainage mechanism, 53 Drainage pipe, 54 Wash tank side drainage connection, 55 Main body side drainage connection, 56 Drainage trap, 57 Drainage connection pipe, 98 Object to be cleaned.

Claims (21)

A dishwasher body having a front opening;
A washing tank which has a tableware storage opening above, is stored in the dishwasher main body, and is supported so that the front opening can be slid in the front-rear direction,
A water supply mechanism for supplying water to the cleaning tank;
A drainage mechanism for draining water from the washing tank,
The water supply mechanism
A water supply valve connected to a water supply pipe, provided in the dishwasher main body, connected to the water supply valve and connected to the main body side water supply connector, and provided to communicate with the cleaning tank, Consists of a wash tank-side water supply connector configured to connect,
The drainage mechanism
A drainage pump connected to the bottom of the washing tank, a washing tank side drainage connector provided in the washing tank and configured to be connected to and connected to the drainage pump, and provided in the dishwasher body The main body side drainage connector is configured to be connected to and connected to the drain pipe,
With the slide movement of the cleaning tank, the main body side water supply connector and the cleaning tank side water supply connector can be connected together, and the cleaning tank side drainage connection tool and the main body side drainage connection tool can be connected. Yes,
In the connection part between the main body side water supply connector and the washing tank side water supply connector, a water stop means formed of an elastic material for stopping the connection part is provided.
A dishwasher characterized in that a water stop means formed of an elastic material for stopping the connection portion is provided at a connection portion between the washing tank side drainage connection tool and the main body side drainage connection tool.   2. The dishwasher according to claim 1, wherein the washing tank side drainage coupling tool and the main body side drainage coupling tool are arranged above a level of washing water stored in the washing tank. The water stopping means provided in the water supply mechanism comprises a mounting body, a lip portion, and a trumpet or bellows-shaped packing body attached to the main body side water supply connector or the cleaning tank side water supply connector,
The water stop means provided in the drainage mechanism has an attachment body, a lip portion, and a trumpet-shaped or bellows-shaped packing body mounted on the cleaning tank-side drainage coupler or the main body-side drainage coupler. The dishwasher according to claim 1 or 2, characterized in that   The dishwasher according to claim 3, wherein a seal body as a second water stop portion is provided on the mounting body of the water stop means.   The cleaning tank side water supply connector which comprises the said water supply mechanism was formed in a part of ventilation path provided so that the wind of an air blower might be blown in the said cleaning tank, The any one of Claims 1-4 characterized by the above-mentioned. The dishwasher described.   6. The dishwasher according to claim 5, wherein the position where the washing tank side water supply connector is formed is above the water level of the washing water.   The dishwasher according to claim 5 or 6, wherein the water supply port of the main body side water supply coupler that constitutes the water supply mechanism is formed with the direction of the water passage facing downward. Either the main body side water supply connector provided for the dishwasher main body and the cleaning tank side water supply connector provided for the cleaning tank are movably provided,
2. The tub-side drainage connector provided for the washing basin and the body-side drainage connector provided for the dishwasher main body are movably provided. Or the dishwasher of 2 description.   The main body side water supply connector and the main body side drainage connector are fixed to the dishwasher main body, and the cleaning tank side water supply connector and the cleaning tank side drainage connector are movably attached to the cleaning tank. A dishwasher according to claim 8, wherein   The dishwasher according to claim 8 or 9, wherein the water stop means is a trumpet water stop packing formed of an elastic material and having a lip portion.   The dishwasher according to any one of claims 1 to 10, wherein a drain trap is provided between the main body-side drain connector and the drain pipe.   12. The dishwasher according to claim 11, wherein a main body side drainage connector constituting the drainage mechanism is formed in a part of the drainage trap. In order to guide the other one of the connecting parts of the main body side water supply connector and the cleaning tank side water supply connector, the diameter is larger than the other, and a trumpet shape is formed.
13. A connecting portion between the cleaning tank drainage connector and the main body side drainage connector is formed in a trumpet shape having a larger diameter than the other for guiding the other. A dishwasher according to any of the above.   The main body side water supply connector and the cleaning tank side water supply connector are provided with guide means for aligning each other at the time of connection, and the cleaning tank side drainage connector and the main body side drainage connector are connected at the time of connection. 14. A dishwasher according to claim 8, further comprising guide means for aligning each other.   The dishwasher according to claim 14, wherein the alignment of each other by the guide means is completed before entering the effective water stop range by the water stop means. A door opening / closing detection device for detecting that the cleaning tank is housed;
A control device for controlling the operation of the water supply valve and the drainage pump based on the detection signal of the cleaning tank storage state from the door opening / closing detection device,
When the control device determines that the cleaning tank is in a state immediately before being slid to the front side based on the detection signal of the non-storage state from the door opening / closing detection device, the water supply valve and the drainage pump The dishwasher according to any one of claims 1 to 15, wherein the operation is stopped.   The dishwasher according to claim 16, wherein a water stop effective range by the water stop means is made larger than a detection range of a cleaning tank storage state detected by the door opening / closing detection device.   A water stop valve having a function of stopping the water supply port of the water supply port portion when the connection is released is provided in a water supply port portion of a portion to which the main body side water supply connector and the cleaning tank side water supply connector are connected, and the cleaning tank A water stop valve having a function of stopping the water flow port of the water flow port portion when the connection is released is provided in a water flow port portion of a portion to which the side water drain connector and the main body side water drain connector are connected. Item 18. A dishwasher according to any one of Items 8 to 17. A dishwasher body having a front opening;
A washing tank which has a tableware storage opening above, is stored in the dishwasher main body, and is supported so that the front opening can be slid in the front-rear direction,
A tank opening device that receives a signal from the outside and slides the cleaning tank forward,
A water supply mechanism for supplying water to the cleaning tank;
A drainage mechanism for draining water from the washing tank,
The water supply mechanism
A water supply valve connected to a water supply pipe, provided in the dishwasher main body, connected to the water supply valve and connected to the main body side water supply connector, and provided to communicate with the cleaning tank, Consists of a wash tank-side water supply connector configured to connect,
The drainage mechanism
A drainage pump connected to the bottom of the washing tank, a washing tank side drainage connector provided in the washing tank and configured to be connected to and connected to the drainage pump, and provided in the dishwasher body The main body side drainage connector is configured to be connected to and connected to the drain pipe,
With the slide movement of the cleaning tank, the main body side water supply connector and the cleaning tank side water supply connector can be connected together, and the cleaning tank side drainage connection tool and the main body side drainage connection tool can be connected. Yes,
In the connection part between the main body side water supply connector and the washing tank side water supply connector, a water stop means formed of an elastic material for stopping the connection part is provided.
A dishwasher characterized in that a water stop means formed of an elastic material for stopping the connection portion is provided at a connection portion between the washing tank side drainage connection tool and the main body side drainage connection tool. A door opening / closing detection device for detecting that the cleaning tank is housed;
An open button for operating the tank opening device;
A controller for controlling the operation of the water supply valve and the drainage pump based on a signal from a door opening / closing detection device and operating the tank opening device based on a signal from an open button;
The control device stops the operation of the water supply valve and the drainage pump based on the signal of the open button, and then operates the tank opening device to slide the cleaning tank forward. 19. A dishwasher according to item 19.   The control device stops the operation of the water supply valve and the drainage pump, and then waits for a sufficient time for the rotation of the drainage pump to stop completely before operating the tank opening device to move the washing tank forward. 21. The dishwasher according to claim 20, wherein the dishwasher slides to the side.

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