JPH0716474B2 - Dishwasher - Google Patents

Description

TECHNICAL FIELD The present invention relates to a dishwasher.

(Prior Art) Conventionally, in a dishwasher that is not connected to a hot water or water supply source, if the wash water or wash water (hereinafter referred to as “wash water”) is forgotten to be injected into the dishwasher or the injection amount is insufficient, The operation of the dishwasher is stopped once, and the door is opened to inject the washing water.

In addition, in a dishwasher equipped with a supply pipe connected to a hot water or water supply source, the supply valve provided in the supply pipe is opened regardless of whether the dishwasher is in operation or during operation. I am trying to inject.

(Problems to be solved by the invention) However, in the former dishwasher described above, when injecting washing water into the washing chamber by opening the door, the washing water bounces off the dishes and wets the clothes of the user. In addition, there is a problem that it jumps out of the machine and wets the surroundings. Therefore, although a part or all of the stored tableware is once taken out and water is injected, the removed tableware is returned to the rack, but such a procedure is very troublesome. Further, if it is necessary to refill water during operation of the dishwasher, it is necessary to stop the dishwasher.

Also, in the latter dishwasher, although there is no problem described above, if the supply valve provided in the supply pipe is opened in order to inject water during cleaning, the spray water from the cleaning nozzle will be released if the supply pressure drops. There is another problem that backflow may occur in the supply pipe, and the inside of the supply pipe may be contaminated with cleaning water.

The present invention aims to solve each of these problems.

(Means for Solving the Problems) In order to achieve such an object, in the present invention,
A box-shaped main body having an opening in the front upper part and forming a cleaning chamber therein, a door for opening and closing the opening, a nozzle arranged in the cleaning chamber for injecting cleaning water or cleaning hot water, and a front end portion Is located at an upper part in the main body and extends rearward and downward, and both side portions are formed on a shield plate fixed to both side walls of the main body, and the lower end portion is formed between the shield plate and the peripheral wall of the main body. In the dishwasher having a back room communicating with the washing room, a supply port that is opened in the back room and supplies washing water or hot water into the washing room is provided in the main body peripheral wall.

(Operation and Effect of the Invention) By configuring the present invention as described above, in the state where the dishes are stored in the dishwasher, the wash water is not injected into the dishwasher or the wash water is insufficient. In this case, a desired amount of washing water can be supplied into the dishwasher by injecting the washing water from the supply port with the dishes kept in the washing chamber regardless of the operation before the dishwasher is operated. . Therefore, it is not necessary to take out the trouble of taking out the stored tableware from the rack or to stop the dishwasher during operation.

Further, when the supply pipe connected to the supply source of water or hot water penetrates the peripheral wall and is opened in the back chamber, the cleaning water sprayed from the cleaning nozzle may directly hit the opening of the supply pipe. Therefore, even if the supply pressure of water or hot water from the supply pipe is reduced, the wash water does not flow back into the supply pipe, and therefore the interior of the supply pipe is not contaminated by the wash water.

(Example) Below, each Example of this invention is described based on drawing.

1 to 3 show a dishwasher according to a first embodiment of the present invention. The dishwasher main body 10 includes a front wall 11, side walls 12, 13, a rear wall 14 and a bottom wall 15. Is integrally formed, and has a box shape formed by attaching the upper wall 16 to the integrally formed portion, and has an opening A in the upper front part.

The front wall 11 has an upper edge located substantially in the middle of the main body 10, and includes receiving portions 11a extending to both left and right ends of the upper edge. Both sidewalls 12, 13
The front edge is formed in an arc shape from the upper edge position of the front wall 11 to the upper side, and the upper edge extends rearward horizontally, and the rear portion descends obliquely downward to the rear edge. As shown in FIGS. 1 to 3, a pair of inner and outer plate-shaped members are formed on each of the side walls 12 and 13 along the arcuate portion, whereby a guide rail having a U-shaped cross section is formed.
17,18 are formed. Engagement protrusions 17a, 18a for attaching the upper wall 16 are formed at the rear end portions of both guide rails 17, 18. After the front edge of the upper wall 16 is locked to the engaging protrusions 17a, 18a, the both side walls 12 and 13 are aligned with the upper edges of the both side walls 12, 13 and the rear wall 14 by a plurality of screws 19. , 13 and the rear wall 14 are detachably attached. A vent hole F is provided in the inclined portion of the upper wall 16 for allowing water vapor to escape to the outside. The opening A of the main body 10 is constituted by the upper edge of the front wall 11, the arcuate portions of the side walls 12 and 13, and the front edge of the upper wall 16.

A partition wall 22 is provided at an intermediate portion in the up-and-down direction inside the main body 10. The partition wall 22 has a front edge at an upper end portion of the front wall 11 of the main body 10, and both side edges are intermediate portions between the side walls 12 and 13. The rear edge is watertightly fixed to the middle portion of the rear wall 14 to divide the main body 10 into an upper washing chamber R1 and a lower machine chamber R2. The partition wall 22 is provided with recesses having different depths in two stages. The deeper part forms a tank 23 for storing cleaning water, and the shallower part 24 stores the cleaning water after cleaning in the tank 23. The cleaning nozzle 33 is disposed at a location where the cleaning nozzle 33 is to be guided to and to be operated later.

A shield plate 20 is provided in the cleaning chamber R1 over the entire width of the main body 10. The shield plate 20 has its front edge located on the lower side in the vicinity of the front edge of the upper wall 16 and is formed in an arc shape that is smoothly continuous with the plate-shaped members below each of the guide rails 17 and 18 to form the rear wall 14. Extends to the vicinity of the middle part in the vertical direction, and both side edges have both side walls
It is fixed at 2,13. The shield plate 20 forms a back chamber R3 together with both side walls 12 and 13, a rear wall 14 and an upper wall 16, and a gap is provided between a lower end portion and the rear wall 14 of the back chamber R3.
Is in communication with.

Support rails 21 are fixed to both side walls 12 and 13 in the washing room R1 so that the receiving portions thereof have an L-shaped cross section and are exposed inward. The rails 21 support a rack 31 on which dishes 32 are placed. At the same time, the rack 31 is taken in and out from the opening A.

A slide door (hereinafter referred to as a door) 30 having an arcuate cross section is slidable in the opening A of the main body 10 along a pair of guide rails 17 and 18 provided on both side walls 12 and 13 on both sides. Guided and supported. This door 30 is an integrally formed handle
It can be opened and closed by holding and moving 30a, and at the time of opening and closing, it slides in both guide rails 17 and 18 and the upper surface of the shielding plate 20. Also the door
The closed position of 30 is that the end 30b of the door 30 on the handle 30a side is the tank 23.
Is determined by abutting on the front upper end portion 23a of the door 30, and at the closed position, the other end (upper end in the drawing) 30c of the door 30 overlaps with the shield plate 20 and the front edge portions of the upper wall 16 by a predetermined amount. There is. On the other hand, the open end position of the door 30 is determined by the handle 30a coming into contact with the front edge of the upper wall 16. Further, the left and right side portions of the door 30 and the sliding portions of the guide rails 17 and 18 form a labyrinth as shown in FIG. 3 to prevent the jetted cleaning water from leaking from the same portion. There is.

As shown in FIG. 2, in the horizontal portion of the upper wall 16, there is provided a substantially rectangular supply port 40 for supplying washing water, which is a main part of this embodiment, in the back chamber.
It is formed so as to open in R3, and a recess 41 for facilitating water injection is provided around it. The supply port 40 is preferably covered with a lid 42 to prevent foreign matter from entering the cleaning chamber R1 except during water supply.

The machine room R2 includes a circulation supply device 34 for pumping the cleaning water in the tank 23 to the cleaning nozzle 33 by the cleaning pump 34a, a drainage device 35 for discharging the cleaning water in the tank 23 to the outside by a drainage pump 35a, and a drive not shown. It houses the controller. An operation switch 36 is provided on the front wall 11 of the machine room R2.

The cleaning nozzle 33 is rotatably supported at the tip of a supply pipe 34b which is connected to the discharge side of the cleaning pump 34a, extends upward, and is supported by a recess 24 having a shallow depth in the partition wall 22.

In the dishwasher of the present embodiment configured as described above, the rack 24 in which the washing water is put together with the detergent and the dishes are placed in the washing room R1 is housed, and the door 21 is closed before the operation switch.
When 36 is turned on, the circulation supply device 34 executes the cleaning cycle under the control of the drive control device. And the cleaning pump 34
a pumps the cleaning water in the tank 23 to the cleaning nozzle 33, and sprays the cleaning water from the cleaning nozzle 33 into the cleaning chamber R1 to remove the dishes 32.
Wash.

If the washing water is not sufficiently supplied to the tank 23, the washing water may be supplied from the supply port 40 provided on the upper wall 16 by a container such as a cup or a hose while the dishwasher is operating. For example, the wash water passes through the back surface of the shield plate 20
Guided within 23. If the user notices a shortage of washing water before operating the dishwasher, the user may open the door 30 to check the degree of water supply. When the water in the cleaning chamber is insufficient, air is sucked into the cleaning pump 34a and sent to the cleaning nozzle 33, so that the cleaning nozzle 33 rotates irregularly and the cleaning water hits the inner wall of the cleaning chamber R1. This is judged because the sound generated at that time becomes irregular. When the washing water is sufficiently supplied, the air is not supplied to the washing nozzle 33, so that the rotation of the washing nozzle 33 becomes regular and the collision noise generated by the washing water becomes regular, which can be judged.

In addition to the above-described supply of washing water, additional detergent can be supplied from the supply port 40 when the detergent is insufficient or when the detergent is forgotten to be added.

As described above, in the present embodiment, when supplying the insufficient cleaning water into the cleaning room R1, the user has to bother to open the door and take out the dishes placed on the rack 24. The washing water can be easily supplied into the washing room R1 without any operation and without stopping the operation during operation, just as when the operation is stopped, so that the operation of the dishwasher can be reduced. You can Also,
Since the additional supply of detergent can be easily performed, the operability of the dishwasher is not impaired.

The shape of the supply port 40 is not limited to the rectangular shape, and may be any other shape as long as it is suitable for water supply.

Further, as a modified example of the supply port 40, as shown in FIG. 4, the funnel-shaped jig 43 having an openable / closable lid 44 is attached to the supply port 40 formed in the upper wall 16 in the same manner as described above. Water can be supplied easily.

Further, as another modification, the upper wall 16 may be easily opened and closed, and the upper wall 16 may be opened to supply the cleaning water into the cleaning chamber R1.

Further, in the above embodiment and the first modification, the supply port
Although the case where the 40 is formed on the upper wall 16 is described, the present invention is not limited to this, and the supply port 40 is formed on the side wall 12, 13 facing the back chamber R3 or a part of the rear wall 14. Good.

In the above-described embodiment and the first modification, if the lids 42 and 44 are removed from the supply port 40 during the operation of the dishwasher, the supply port 40 acts as a ventilation hole, so that the upper wall 16 is provided. It is not necessary to separately provide the ventilation hole F.

Next, a second embodiment will be described with reference to FIG. 5. In this embodiment, a supply pipe 45 connected to a water or hot water supply source (not shown) as a supply port is provided with a rear wall facing the back chamber R3. 14
It is so constructed that it is attached so as to penetrate in a watertight manner, and the other parts are similar to those of the dishwasher described above.

In the second embodiment configured as described above, when the supply valve 46 is opened during the operation of the dishwasher to supply the cleaning water through the supply pipe 45 into the cleaning chamber R1, the opening portion of the supply pipe 45 is opened. Since it is in the back chamber R3, the cleaning water sprayed from the cleaning nozzle 33 does not directly hit the opening. For this reason, the supply pipe
Even if the supply pressure of water or hot water from 45 drops,
There is no possibility that dirty cleaning water will flow back into the supply pipe 45. Therefore, the inside of the supply pipe 45 is not contaminated with the cleaning water, which is favorable for hygiene, and the labor for cleaning the inside of the supply pipe 45 is not required.

In the second embodiment described above, the case where the supply pipe 45 is attached to the rear wall 14 has been described, but the supply pipe 45 is watertightly penetrated through a part of the side walls 12 and 13 facing the back chamber R3. You may attach it.

Furthermore, in each of the above-described embodiments and modifications, the case where the present invention is applied to a dishwasher equipped with a sliding door has been described, but the present invention is also applied to other door-type dishwashers. The same effect as described above can be obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a first embodiment of a dishwasher according to the present invention, FIG. 2 is a perspective view of the dishwasher, and FIG. 3 is an enlarged view showing a guide support state of a slide door and a guide rail. A sectional view, FIG. 4 is an enlarged sectional view of an essential part of a first modification of the first embodiment, and FIG. 5 is an enlarged sectional view of an essential part of the second embodiment. Explanation of symbols 10 …… Main body, 11 …… Front wall, 12,13 …… Side wall, 14 …… Rear wall, 16 …… Top wall, 20 …… Shield plate, 30 …… Slide door (door), 33… … Cleaning nozzle, 40… Supply port, A… Opening, R1… Cleaning room, R3… Back room.

Claims (1)

[Claims] 1. A box-shaped main body having an opening at an upper front portion thereof to form a cleaning chamber therein, a door for opening and closing the opening, and a cleaning water or cleaning hot water disposed in the cleaning chamber. A cleaning nozzle, a shield plate having a front end located at an upper part in the main body, extending rearward and downward, and both side parts fixed to both side walls of the main body, and formed between the shield plate and a peripheral wall of the main body. In a dishwasher having a back chamber communicating with the cleaning chamber at its lower end, the main body peripheral wall is provided with a supply port that is opened in the back chamber and supplies cleaning water or cleaning hot water into the cleaning chamber. Dishwasher characterized by.