JP7745129B2 - dishwasher - Google Patents

Description

This disclosure relates to dishwashers.

Patent Document 1 discloses a dishwasher with a door that pivots up and down. This dishwasher is equipped with a washing tub that stores dishes, an opening in the washing tub, multiple doors that close the opening, and a linking mechanism that links the other doors when one of the multiple doors is opened or closed. The multiple doors include upper and lower doors that open and close up and down.

Japanese Patent Application Laid-Open No. 2002-219083 Japanese Patent Application Laid-Open No. 2006-263378

This disclosure relates to dishwashers.

The dishwasher of the present disclosure comprises a housing, a washing tub provided within the housing for containing items to be washed, an opening provided in the washing tub, and a plurality of doors for closing the opening, the plurality of doors comprising a first door that rotates upward to open and a second door that rotates downward to open, and when the opening is closed , the first door is closed to cover and conceal the second door , the first door has an inner closing portion that protrudes from its inner surface and closes part of the opening , and when the doors are closed , the entire opening is closed by the second door and the inner closing portion , and the contact portion between the second door and the inner closing portion is covered by the first door .

The dishwasher disclosed herein can provide a user-friendly door opening and closing mechanism.

FIG. 1 is a schematic perspective view of a dishwasher with the door closed according to an embodiment of the present invention; 1 is a schematic perspective view of a dishwasher with the door open according to an embodiment of the present invention; 1 is a schematic front view of a dishwasher with the door open according to an embodiment of the present invention; 1 is a schematic perspective view of a dishwasher with the door open, looking up at the door 4 from below; Schematic perspective view of the bottom of the dishwasher with the door open. (a) A schematic side view of the dishwasher with the door in a closed state, the inner closure portion hidden, and the side cover of the housing removed. (b) A schematic side view of the dishwasher with the door in an open state, the inner closure portion hidden, and the side cover of the housing removed. (a) is a schematic side cross-sectional view of the first door when the opening/closing operation lever is not operated; (b) is a schematic side cross-sectional view of the first door when the opening/closing operation lever is operated; FIG. 1 is a schematic front view of the first door with the surface cover removed and the door in an open state; (a) is an enlarged view of a portion cut out from frame X shown in FIG. 6(a); (b) is an enlarged view of a portion cut out from frame Y shown in FIG. 6(b). A functional configuration diagram of a control unit for controlling a dishwasher according to the first embodiment. Side view of a dishwasher with the door closed and the side cover removed A side view of the dishwasher with the side cover removed when the door is in the open position and the opening is small. A side view of the dishwasher with the side cover removed when the door is fully open. Side view of a dishwasher with the door open and the side cover removed FIG. 1 is an enlarged side view of a dishwasher showing the vicinity of a first support member just before the door is fully opened. (a) A cross-sectional view of the inner contact portion of the door when the door is closed. (b) A cross-sectional view of the second door tip when the door is open.

(Findings that formed the basis of this disclosure)
When the inventors first came up with the idea for the present disclosure, conventional door configurations with upper and lower doors used waterproof seals with poor soundproofing performance on the outer surface of the main body, which did not provide sufficient protection against sound leakage during washing. The inventors then discovered a problem: it was necessary to improve protection against sound leakage while also taking measures against water leakage and dripping. To solve this problem, the inventors came up with the subject matter of the present disclosure.

This disclosure therefore provides a dishwasher that can provide a user-friendly door opening and closing mechanism.

Embodiments will be described in detail below with reference to the drawings. However, more detailed explanations than necessary may be omitted. For example, detailed explanations of matters that are already well known or duplicate explanations of substantially identical configurations may be omitted. This is to avoid making the following explanation unnecessarily redundant and to make it easier for those skilled in the art to understand.

The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Embodiment)
The best mode for carrying out the present invention will be described below with reference to FIGS.

[Overall configuration]
FIG. 1 shows a dishwasher according to a first embodiment of the present invention, which is a countertop dishwasher that is installed as a freestanding type.

Figure 1 is a perspective view of a dishwasher with the door in a closed position. Figure 2 is a perspective view of a dishwasher in embodiment 1 with the door in an open position. Figure 3 is a front view of the dishwasher in the position shown in Figure 2.

In the following description of Embodiment 1, the dishwasher will be viewed from the front, with the front side facing the user as the front direction and the rear side as the rear direction, as shown in the diagram. Also, in a front view, the top side of the dishwasher's washing tub 3 will be referred to as the top, and the opposite side as the bottom. Furthermore, the right side of the door 4 will be referred to as the right side and the left side as viewed from the front.

As shown in Figures 1 to 3, the dishwasher 1 has a housing 2, a washing tub 3 provided within the housing 2, an opening 5 in front of the washing tub 3, and a door 4 for opening and closing the opening 5. The door 4 is made up of multiple doors. Specifically, in this embodiment, it has a first door 4a and a second door 4b.

The door 4 can be opened and closed by the user gripping an opening/closing operation lever 8. To make it easier to grip the opening/closing operation lever 8, a door-lower recess 11 is provided directly below the opening/closing operation lever 8 located at the bottom end of the door 4. An operation display unit 12 is also provided on one side of the door-lower recess 11.

By providing an operation display unit 12 directly below the opening/closing lever 8, the front of the door 4 has a clean design. The operation display unit 12 is fitted with various button switches, and when the user touches or presses a specific part of each switch, the control unit 30, described below, can open the door. There is also a panel or LED lamp for displaying the current status and which button has been pressed. The operation display unit 12 can also be used to set the dishwasher's operating settings, such as the wash course and drying time. Of course, the operation display unit may be an electrostatic touch type such as a touch panel, rather than a button switch.

The dishwasher 1 has a water tank 13 at the bottom that stores water for washing. The water tank 13 has a tank lid 14 on the top surface of the tank's protrusion so that the user can directly add water. Because the tank lid 14 rotates upward, there is no need to pull out the water tank 13 when pouring water into it; water can be poured simply by opening the tank lid 14.

The dishwasher 1 also has a rotatable washing nozzle 6 that sprays washing water inside the housing 2, and a dish basket 9 for placing dishes is located inside the housing 2.

The dish basket is equipped with numerous support pins of various shapes, allowing it to accommodate bowls of various shapes. In this embodiment, the dishwasher 1 has a dish basket 9 for placing plates, bowls, cups, etc., as well as an upper dish basket shelf 10 for placing light dishes and small items.

The washing nozzle 6 sprays washing water onto items to be washed, such as dishes placed in the dish basket 9 and the dish basket upper shelf 10, to wash the items. At this time, the washing nozzle 6 is positioned so that it sprays washing water mainly from below to above the housing 2 to wash the items to be washed.

When the cleaning process is completed, the cleaning water is drained outside the machine by a drainage pump located at the bottom of the housing 2.

The housing 2 is supported by a frame. The washing water inside the housing 2 is heated by a heater 31, sucked in by a washing pump 32 through a food waste filter installed at the drain outlet, and then pressure-fed to the washing nozzle 6, where it is sprayed out from the outlet onto the dishes and circulated. This washes the dishes.

A tower nozzle 7 is also provided on the inner surface of the housing 2, particularly on the inner surface near the back of the dish basket 9 in this embodiment. Like the washing nozzle 6, it sprays washing water to clean dishes and other items placed on it.

Figure 4 is a perspective view of the dishwasher 1 when the door 4 is open, looking up at the door 4 from below. An opening/closing lever 8 is provided at the bottom end of the door 4. The door 4 also has a water guide plate 41 on the front side in Figure 4 that extends left and right on the inner surface of the door 4. The water guide plate 41 is fixed at its rear end in Figure 4 as an axis, and its front end hangs down under its own weight. Because the front end is not fixed, it is configured to move freely depending on the rotation position of the door 4 and its own weight. The front end forms a slope downward toward the front, which guides water droplets that have run down from the inner surface of the door 4 into the housing 2. This prevents water droplets that have adhered to the inner surface of the door 4 after washing from dripping from the tip of the door 4 and falling outside the dishwasher 1.

The opening 5 is configured to be opened and closed by the door 4. The door 4 has a packing that seals the opening 5 watertightly. The door 4 is configured as a door body divided into two parts, an upper door 4a and a lower door 4b. The door 4 is configured to reversibly open and close using an opening/closing mechanism for the door 4, which will be described later. The first door 4a is in a substantially upright position when the door 4 is closed as shown in FIG. 6( a) and is in a substantially horizontal position when the door 4 is open as shown in FIG. 6( b). The second door 4b is in a substantially upright position when the door 4 is closed as shown in FIG. 6( a) and is in a substantially horizontal position when the door 4 is open as shown in FIG. 6( b). When the door 4 is fully open, the first door 4a is located above the second door 4b, and the first door 4a and the second door 4b are located substantially horizontally.

Figure 10 shows the functional configuration of the control unit 30 and its surroundings for controlling the dishwasher 1 in embodiment 1. The control unit 30 is realized by hardware such as a microcomputer, microcontroller, or integrated circuit.

The control unit 30 includes a process control unit 33 and a door open/close detection unit 48. These components are realized in hardware by the CPU, memory, and other LSIs of any computer, and in software by programs loaded into memory, but the functional blocks realized by the cooperation of these components are depicted here. Therefore, those skilled in the art will understand that these functional blocks can be realized in various ways, such as by hardware alone or a combination of hardware and software.

[Latch interlocking mechanism when opening and closing the door]
The door 4 can be opened and closed by a user gripping a movable opening/closing operation lever 8. The opening/closing operation lever 8 is configured to be interlocked with a latch 42 by an interlocking means 50.

Figure 4 is a perspective view of the dishwasher 1 when the door 4 is open, looking up at the door 4 from below, and Figure 5 is a perspective view of the lower half of the dishwasher 1 when the door 4 is open. As shown in Figure 4, the opening/closing lever 8 provided at the bottom end of the first door 4a is linked to latches 42 provided at both left and right ends of the inside of the first door 4a.

When the door 4 is closed as shown in Figure 1, this latch 42 engages with the latch engagement grooves 43 provided on both ends near the opening 5 of the housing 2, as shown in Figure 5. At this time, the door 4 remains closed, the door open/close detection unit 48 detects that the door 4 is closed, and the control unit 30 drives the cleaning pump 32 and heater 31.

When the user grasps the opening/closing lever 8 and applies force toward the user while the door 4 is closed, the latch 42 rotates in conjunction, releasing the door 4 from its closed state. At this time, the door opening/closing detection unit 48 detects that the door 4 has been released from its closed state, and the control unit 30 stops the cleaning pump 32 and heater 31. The operation display unit 12 also displays that the door 4 has been opened.

Figure 6 (a) is a side view of the dishwasher 1 with the door 4 in a closed state, and (b) is a side view of the dishwasher 1 with the door 4 in an open state. In Figure 6, the side cover of the housing 2 has been removed to reveal the internal structure of the side of the housing. Also, Figure 7 (a) is a simplified cross-sectional side view of the first door 4a in the state shown in Figure 6 (a), and Figure 7 (b) is a simplified cross-sectional side view of the first door 4a in the state shown in Figure 6 (b). Figure 8, like Figures 6 (a) and 7 (a), is a schematic front view of the first door 4a with the surface cover removed when the door 4 is in an open state.

The following explains the interlocking operation of the opening/closing operation lever 8 and the latch 42, following the movement from Figure 7(a) to Figure 7(b).

When a user grasps the opening/closing operation lever 8 and pulls it toward the user, the upper tip of the opening/closing operation lever 8 abuts against a lever connecting plate 46 provided in the center of the lower side of the first door 4a directly above the opening/closing operation lever 8, causing the lever connecting plate 46 to lift upward. The upper tip of the lever connecting plate 46 that has been lifted upward then pushes up the metal plate 45 that extends in the left-right direction above the first door 4a. At this time, the bent portion of the metal plate 45 that is bent in a direction approximately perpendicular to the first door 4a is pushed up by the upper tip of the lever connecting plate 46, causing the metal plate 45 to rotate toward the user.

Latches 42 are attached to both ends of the metal plate 45, so when the metal plate 45 rotates, the latch 42 simultaneously rotates toward the front, causing the hook-shaped tip hook portion 47 of the latch 42 to retract into the first door 4a.

When the door 4 is in the closed state (Figure 7(a)), the hook-shaped tip hook portion 47 of the latch 42 is engaged with the latch engagement groove 43. Therefore, when the opening/closing operation lever 8 is pulled toward the front while the door 4 is in the closed state (Figure 7(b)), the tip hook portion 47 is retracted into the first door 4a and is released from engagement with the latch engagement groove 43, thereby releasing the door 4 from its closed state.

The lower end of the latch connection spring 44 is connected to the upper tip of the latch 42, opposite the tip hook 47, and the upper end of the latch connection spring 44 is fixed inside the first door 4a, biasing the latch 42 toward the first door 4a. When the opening/closing operation lever 8 is pulled, the tip of the latch 42 to which the latch connection spring 44 is connected rotates downward, pulling the latch connection spring 44 downward and expanding it (Figure 7(b)). When the user releases the latch connection spring 44 from its expanded state, an elastic force acts in the direction that returns the pulled latch connection spring 44 to its original position, causing the opening/closing operation lever 8 to return to its original position.

Specifically, when the latch 42 rotates to extend the latch connection spring 44, and the user releases the opening/closing operation lever 8, the latch connection spring 44 contracts and returns to its original length. As the latch connection spring 44 contracts, the metal plate 45 and latch 42 rotate and return to their original positions, pushing the lever connection plate 46 and opening/closing operation lever 8 back to their original positions.

Furthermore, even when the door 4 is in the middle of pivoting, if the opening/closing operation lever 8 is not being operated, the latch 42 is biased by the spring, which is in a moderately extended state, and the opening/closing operation lever 8 remains pressed downward by the lever connecting plate 46, as shown in Figure 7(a). When the door 4 is in the closed state and the opening/closing operation lever 8 is not being operated, the tip hook 47 of the latch 42 engages with the latch engagement groove 43, and the door 4 remains closed.

Next, the configuration of the door open/close detection unit 48 will be explained. Figure 9(a) is an enlarged view of the frame X shown in Figure 6(a), which shows the door 4 in an open state. Figure 9(b) is an enlarged view of the frame X shown in Figure 6(b), which shows the door 4 in an open state. The area enclosed by the ellipse in Figures 9(a) and (b) is the door open/close detection unit 48.

The door open/close detection unit 48, located on both side surfaces of the housing 2, has a switch lever 481, a switch lever plate 482, and a microswitch 483.

The switch lever 481 is provided at a position where it abuts the tip hook portion 47 of the latch 42 that is fitted into the latch engagement groove 43 when the door 4 is in the closed state. The switch lever 481 has a switch lever plate 482 at the tip opposite to the side that abuts the tip hook portion 47. When the tip hook portion 47 of the latch 42 and the latch engagement groove 43 fit together and the switch lever 481 is pushed up by the abutting tip hook portion 47, the switch lever plate 482 rotates around the switch lever rotation shaft 484. A microswitch 483 is provided below the switch lever plate 482, and when the microswitch 483 is pressed by the rotated switch lever plate 482, the microswitch 483 is turned ON, and the control unit 30 detects that the door 4 is in the closed state. In this way, when the door 4 is in the closed state and the microswitch 48
FIG. 9(a) shows the state where 3 is pressed.

When the closed state of the door 4 is detected in this way, the control unit 30 issues a command to turn on the cleaning pump 32 and heater 31, as shown in the functional configuration diagram in Figure 10. When a command to start cleaning is issued in this state, cleaning water is sent from the cleaning pump 32 to the cleaning nozzle 6 and tower nozzle 7, and the cleaning water is sprayed from each nozzle. At this time, the operation display unit 12 may also display or notify that the door 4 is closed and that operation and cleaning are possible.

Conversely, when the opening/closing operation lever 8 is pulled out while the door 4 is closed, the hook-shaped tip hook portion 47 of the latch 42 is retracted into the first door 4a. This causes the tip hook portion 47 to separate from the switch lever 481, and the switch lever 481 and switch lever plate 482, which had been rotating, return to their original positions, using the switch lever pivot shaft 484 as an axis. This causes the microswitch 483, which had been pressed by the switch lever plate 482, to return to its state before being pressed, and the microswitch 483 becomes OFF, causing the control unit 30 to detect that the door 4 is in the open state. Figure 9(b) shows the state in which the door 4 is in the open state and the microswitch 483 is not pressed.

When the open state of door 4 is detected in this way, as shown in the functional configuration diagram in Figure 10, the control unit 30 issues a command to turn off the wash pump 32 and heater 31. The supply of wash water to the wash nozzle 6 and tower nozzle 7 is then stopped, and the spray of wash water from each nozzle is interrupted. Therefore, when the user operates the opening/closing lever 8 to open the door 4, the spray of wash water is stopped even if a wash is in progress, preventing accidents such as water spraying from the opening 5 of the dishwasher 1 and getting the user wet. At this time, the operation display unit 12 may also display or notify the user that the door 4 is open and that operation and washing are not possible.

[Door interlocking mechanism 1 (link) when the door is opened and closed]
The door 4 is composed of two door bodies divided vertically, a first door 4a positioned at the top when closed, and a second door 4b positioned at the bottom when closed. When the door begins to open, the first door 4a rotates upward toward the back, and when the door is fully opened, the first door 4a is supported so that it is horizontal and above the top surface of the housing 2. When the door begins to open, the second door 4b rotates downward toward the front, and when the door is fully opened, the second door 4b rotates approximately 90° to a position roughly aligned with the dish basket 9 inside the housing 2 in a side view, and is supported so that the second door 4b is horizontal. This opening and closing mechanism allows the first door 4a and the second door 4b to open and close reversibly.

Figure 14 is a side view of dishwasher 1 when door 4 is open. Figure 14 is a drawing in which the side cover of housing 2 has been removed, revealing the internal structure of the side of the housing. Figure 11 is a side view of dishwasher 1 when door 4 is closed. Figure 12 is a side view of dishwasher 1 when door 4 is in the middle of being opened or closed, with the door only slightly opened. Figure 13 is a side view of dishwasher 1 when door 4 is in the middle of being opened or closed, with the door only slightly opened. As with Figure 14, Figures 11 to 13 are also drawings in which the side cover of housing 2 has been removed, revealing the internal structure of the side of the housing. Below, the configuration that realizes the interlocking mechanism when door 4 is opened and closed will be explained mainly using Figure 14.

As shown in the figure, when the door 4 is open, the first door 4a is in a substantially horizontal position and is pivotally supported by a first support member 51. The first support member 51 is curved in a U-shape, with one end of the U fixed to the first support shaft 55 and the other end fixed to the inner surface of the first door 4a.

The second support member 53 is fixed to the housing 2 and remains stationary even when the door 4 is rotated. Therefore, the second support member 53 axially supports multiple support members so that they can rotate freely, while also biasing these support members and the housing 2. The second support member 53 extends from above to below on both sides of the housing, and curves toward the front from the middle of the lower part.

The first support member 51 is rotatably supported relative to the second support member 53 by a first support shaft 55 provided at the upper end of the second support member 53.

As shown in the figure, when the door 4 is open, the second door 4b is in a generally horizontal position and is pivotally supported by the third support member 54. The third support member 54 is formed in a generally fan shape, with its central portion fixed to the fourth support shaft 58 and its arc portion rotating. The front end of the arc is fixed to the second door 4b.

The second support shaft 56 is provided at the curved lower end of the second support member 53, which is fixed to the housing 2. Therefore, the third support member 54 is also supported rotatably relative to the second support member 53.

The first support member 51 that supports the first door 4a and the third support member 54 that supports the second door 4b are supported not only by the second support member 53 but also by the link member 52. The link member 52 has a shape that extends from top to bottom on both sides of the housing. A third support shaft 57 is provided at the upper end, and the first support member 51 is supported coaxially. A fourth support shaft 58 is provided at the lower end, and the third support member 54 is supported coaxially. The fourth support shaft 58 supports the rear end of the third support member 54, opposite the end that is fixed to the second door 4b.

With this configuration, when a user pulls the opening/closing lever 8 to release the closed state and attempt to open the first door 4a, the first support member 51 first begins to rotate upward together with the first door 4a, starting from the first support shaft 55 (Figure 12). As the first support member 51 moves upward, the link member 52, which is coaxially supported with the first support member 51 by the third support shaft 57, rises upward (Figure 13). The lower end of the link member 52 then lifts upward the rear end of the third support member 54, which is coaxially supported with the link member 52 by the second support shaft 56. This causes the front end of the third support member 54 to rotate forward together with the second door 4b, starting from the fourth support shaft 58 (Figure 14). In this way, when the first door 4a opens, the second door 4b opens in conjunction with it.

The side of the housing 2 has a second rotation stopper 63, which is a flat plate positioned approximately horizontally at the bottom front end in side view. The second rotation stopper 63 is located in a position where it abuts the end of the rotated third support member 54 opposite the end to which the second door 4b is connected when the second door 4b is fully open and approximately horizontal. When the third support member 54 and the second rotation stopper 63 abut, the second rotation stopper 63 acts as a stopper, preventing the third support member 54 from rotating any further in the opening direction.

Conversely, when returning the door 4 from the open state to the closed state, the second door 4b closes in conjunction with the first door 4a when the first door 4a is closed. Specifically, when attempting to close the first door 4a, the first support member 51 first begins to rotate downward together with the first door 4a, starting from the first support shaft 55 ( FIG. 13 ). As the first support member 51 moves downward, the link member 52, which is coaxially supported with the first support member 51 by the third support shaft 57, moves downward ( FIG. 13 ). The lower end of the lowered link member 52 then moves downward the rear end of the third support member 54, which is coaxially supported with the link member 52 by the second support shaft 56. This causes the front end of the third support member 54 to rotate toward the rear together with the second door 4b, starting from the fourth support shaft 58 ( FIG. 12 ). In this way, the second door 4b opens in conjunction with the first door 4a when it opens.

When the first door 4a and second door 4b rotate and reach the closed position shown in Figure 11, the hook portion 47 at the tip of the latch 42 engages with the latch engagement groove 43, maintaining the door 4 in the closed position.

The link member 52 further includes a first spring 59 and a third spring 61. The link member 52 extends vertically and has one protruding portion toward the front and one toward the back in FIG. 11. The lower end of the first spring 59 is connected to the protruding portion toward the back. The upper end of the first spring 59 is connected to the first support member 51, and in the half-open state as shown in FIG. 13, the elastic force of the first spring 59 balances with the weight of the first door 4a, bringing it to a stopped state.

[Door interlocking mechanism 2 (spring) when opening and closing the door]
The lower end of a third spring 61 is connected to the protruding portion on the front side of the link member 52, and the upper end of the third spring 61 is connected to a part of the side surface of the housing 2. In the half-open state as shown in Figure 13, the elastic force of the third spring 61 is balanced with the weight of the first door 4a, and the door comes to a stop.

With this configuration, when the door 4 is closed, the first spring 59 and the third spring 61 are in an extended state (Figure 11). Therefore, when the door 4 is closed, the user pulls the opening/closing lever 8 to release the closed state, and then opens the first door 4a and releases it. This applies a force to the two springs in a contracting direction, pulling the first door 4a upward and causing it to begin to rotate upward (Figure 12). When the springs' elastic force causes the door to rotate to a fully open position as shown in Figure 13, the elastic force of the first spring 59 and the third spring 61 balances with the weight of the first door 4a, resulting in a stable state. Therefore, the upward rotation of the door 4 stops midway through its opening at the position shown in Figure 13 (Figure 13). To open the door further, the assistance provided by the elastic force of the first spring 59 and the third spring 61 decreases, and the user must again directly touch the door 4 and apply force. When the user lifts the first door 4a from the position shown in Figure 13, the front end of the rotated third support member 54 abuts against the second rotation stopper 63 attached to the bottom end of the second support member 53, physically stopping the rotation of the link member 52 and first support member 51 and preventing further rotation of the door 4. At this point, the opening 5 is completely open, and the stopping position of the door 4 is configured so that the first door 4a and second door 4b are positioned approximately horizontally (Figure 14).

When the doors 4 are opened, if they are rotated upward all the way to the fully open position in one go, the rotation of the door 4 is physically stopped by the second rotation stopper 63 when the first door 4a has rotated all the way up. As a result, the dishes placed in the dish baskets 9 and 10 are subjected to an impact when the door stops, causing the dishes to come into contact with each other, creating a clattering noise and possibly damaging the dishes. On the other hand, if the upward rotation of the door 4 is stopped by the elastic force of the spring while the door 4 is halfway open, the impact on the dishes placed in the dish baskets 9 and 10 is reduced compared to the former case, and it is possible to prevent dishes from coming into contact with each other.

Furthermore, when the door 4 is closed, if the user pulls the opening/closing lever 8 to release the closed state, and then continues to rotate the first door 4a upward without releasing the hand that is holding it open, the door 4 can be rotated in one go to the fully open position, where the door 4 is in a roughly horizontal position as shown in Figure 14, without stopping the rotation at the position shown in Figure 13.

Conversely, when the door 4 is returned from the open state to the closed state, the spring's elastic force also acts to close the door 4. Specifically, when a force is applied in the direction of closing the door 4 from the open state shown in Figure 14, the first door 4a rotates downward, aided by its own weight. However, if a user applies a light force in the closing direction and then immediately releases the force, the rotation of the door 4 stops in the position shown in Figure 13. This is because the elastic forces of the first spring 59 and the third spring 61 balance with the weight of the first door 4a, resulting in a stable state. At the position shown in Figure 13, the downward rotation of the door 4 stops midway through closing. To further close the door, the first door 4a is rotated downward. At this time, the first support member 51 and the link member 52, which are coaxially supported, rotate downward, and the first spring 59 and the third spring 61 are also stretched downward. As a result, the spring is in an extended state, and the user must apply force with their hands to press down on the door 4, which repels the door 4 in the opening direction due to its elastic force, in order to close it. When the first door 4a and the second door 4b rotate downward and reach the closed state shown in Figure 11, the hook portion 47 at the tip of the latch 42 engages with the latch engagement groove 43, maintaining the closed state of the door 4. At this time, the opening 5 is completely closed, and the stopping position of the door 4 at this time is configured so that the first door 4a and the second door 4b are in a substantially vertical position.

When closing door 4, if the door rotates downward all the way to the completely closed position in one go, and if for some reason an unintentional force is applied in the closing direction, and a user's hand or finger is directly below the path of the first door 4a's rotation, an accident could occur in which the user's finger becomes pinched between the first door 4a and the second door 4b. Furthermore, due to the weight of the first door 4a, there is a risk of injury to the pinched finger. On the other hand, if the downward rotation of the door is stopped by the elastic force of the spring while door 4 is closing, the door is less likely to hit the user's finger, and even if the user's finger does hit the door, the impact is reduced compared to the former case, preventing accidents and injuries to the user.

Furthermore, when the user intentionally closes door 4 while it is open, by rotating first door 4a downwards without releasing the grip, the rotation can be quickly rotated to the fully closed position, where door 4 is in a substantially vertical position as shown in Figure 11, without stopping at the position shown in Figure 13.

Furthermore, as shown in Figure 13, when the door 4 is stopped in the middle of opening or closing, the second door 4b forms a slope facing upward toward the front in a side view. With this structure, water droplets falling from the first door 4a or water guide plate 41 located above are less likely to splash toward the outside of the machine, and the falling water droplets can be directed inside the washing tub. Therefore, even if the door 4 is opened during washing, water leakage outside the machine from the first door 4a can be prevented.

[Door interlocking mechanism 3 when opening and closing the door (maintaining a completely open state)]
Figure 15 is a side view of the dishwasher 1, showing an enlarged view of the vicinity of the first support member, just before the first door 4a is rotated to a substantially horizontal position. However, as with Figures 11 to 14, this figure shows the internal structure of the side of the housing 2 with the side cover removed. The rotational structure of the door until it is fully open will be described below with reference to Figures 13 to 15.

The U-shaped first support member 51 has an arc-shaped protrusion 64 at the end fixed to the first support shaft 55. When the first door 4a rotates, the arc-shaped protrusion 64 rotates along with the first support member 51. The housing 2 also has a first rotation stopper 62 at the top rear of its side surface. The first rotation stopper 62 is configured as a roughly T-shape, with two recesses, and the T-shape is rotated approximately 90 degrees counterclockwise as shown in Figure 14. However, the lower end of the T is supported on the housing 2 by a fifth support shaft 65, and the first rotation stopper 62 is rotatable around this shaft.

The upper end of the first rotation stopper 62 is connected to one end of a second spring 60 that extends in the left-right direction. The other end of this second spring 60 is connected to a part of the side surface of the housing 2. As shown in Figure 11 and other figures, this second spring 60 assumes its natural length when the first rotation stopper 62 is in a state where it is slightly tilted toward the front with the fifth support shaft 65 as the starting point, and the first rotation stopper 62 and the second spring 60 are fixed so as to be in a stably stopped state.

With this configuration, when the first door 4a is further manually rotated from the door 4 position shown in Figure 13, the tip of the arc of the arc-shaped protrusion 64 abuts the recess above the first rotation stopper 62 just before the door 4 reaches the fully open position as shown in Figure 14. If the door is further rotated from this point, the tip of the arc of the arc-shaped protrusion 64 rotates while abutting the end of the T-shape of the first rotation stopper 62 extending toward the user (Figure 15), eventually climbing over the first rotation stopper 62 (Figure 14). Just before climbing over, the front end of the T-shape of the first rotation stopper 62 is pressed by the arc-shaped protrusion 64, causing it to rotate toward the user from the fifth support shaft 65. 15 shows the state in which the first rotation stopper 62 is being pressed by the arc-shaped protrusion 64. When the first rotation stopper 62 is rotated toward the rear, the second spring 60, which was at its natural length, is extended. When the door is further rotated and the arc-shaped protrusion 64 passes over the first rotation stopper 62, the second spring 60 tries to return to its natural length, and a force acts in the direction of contraction due to its elastic force. The first rotation stopper 62 rotates from the fifth support shaft 65 to its original position, tilted slightly toward the front, and the second spring 60 returns to its natural length (FIG. 14). The tip of the fully rotated arc-shaped protrusion 64 fits into the recess below the first rotation stopper 62, and the tip of the arc-shaped protrusion 64 catches on the front end of the T-shape of the first rotation stopper 62. The first rotation stopper 62, which has returned to its original position, is biased by the second spring 60, which is at its natural length, and is therefore fixed in the position shown in Figure 14. As a result, the first rotation stopper 62 is caught in the recess below, and once the arc-shaped protrusion 64 overcomes the first rotation stopper 62, even if the user lets go of it, the first door 4a will remain stopped in a nearly horizontal position in the fully open state shown in Figure 14.

In addition, in the fully open state as shown in Figure 14, the U-shaped support member rotates upward by approximately 90 degrees, causing the first door 4a to rotate to a substantially horizontal position when the door is open. When the first door 4a rotates to a substantially horizontal position and remains stopped in this way, the door is not left open toward the front when the user opens it, allowing for effective use of the space toward the front.

As mentioned above, to fully open the door 4, the arc-shaped protrusion 64 at the tip of the first support member 51 must overcome the first rotation stopper 62.

Conversely, when returning the door 4 from the open state to the closed state, the user must rotate the first door 4a downward, causing the arc-shaped protrusion 64 to overcome the first rotation stopper 62. Specifically, when the first door 4a is manually rotated downward from the position of the door 4 shown in Figure 14, the tip of the arc of the arc-shaped protrusion 64, which fits into the recess below the first rotation stopper 62, rotates while abutting against the front end of the T-shape of the first rotation stopper 62 (Figure 15), and eventually overcomes the first rotation stopper 62 (Figure 13). Just before overriding, the front end of the T-shape of the first rotation stopper 62 is pressed by the arc-shaped protrusion 64, causing it to rotate toward the rear, starting from the fifth support shaft 65. 15 shows the state in which the first rotation stopper 62 is being pressed by the arc-shaped protrusion 64. When the first rotation stopper 62 is rotated toward the rear, the second spring 60, which was at its natural length, is extended. When the door is further rotated and the arc-shaped protrusion 64 passes over the first rotation stopper 62, the second spring 60 tries to return to its natural length, and a force acts in the direction of contraction due to its elastic force. The first rotation stopper 62 rotates from the fifth support shaft 65 to its original position, tilted slightly toward the front, and the second spring 60 returns to its natural length (FIG. 13). The tip of the fully rotated arc-shaped protrusion 64 fits into a recess above the first rotation stopper 62, and the tip of the arc-shaped protrusion 64 catches on the front end of the T-shape of the first rotation stopper 62. The first rotation stopper 62 has returned to its original position and is fixed in the position shown in Figure 14 because it is biased by the second spring 60, which is at its natural length.

Therefore, the first rotation stopper 62 is caught in the upper recess, and the arc-shaped protrusion 64
After the first door 4a overcomes the first rotation stopper 62, the door 4 is in a half-open state in the middle of rotation as shown in Figure 13, and even if the user lets go of the door 4a at this point, the first door 4a will not return to the completely open state as shown in Figure 14.

[Direction of action when opening and closing the door]
The door 4 is configured to be openable and closable by a user gripping the movable opening/closing lever 8. As described above, when the user grips the opening/closing lever 8 and pulls it toward themselves, the closed state of the door 4 is released, and the door 4 pivots open. At this time, the direction in which the user pulls the opening/closing lever 8 is the direction P shown in FIG. 14 , which is a substantially horizontal direction. On the other hand, when the closed state of the door 4 is released, the first door 4a pivots upward and opens, and the pivoting direction is the direction Q shown in FIG. 14 , which is a substantially vertically upward direction.

As a result, when a user operates the opening/closing lever 8 to open the door 4, the direction in which the user releases the closed state differs by approximately 90 degrees or more from the direction in which the first door 4a opens. As a result, if a user attempts to open the door 4 while the dishwasher 1 is in a wash operation, there is a short period of time between operating the opening/closing lever 8 and the door 4 opening, allowing the door opening/closing detection unit 48 to detect that the closed state has been released and ensure time to stop driving the wash pump before the door 4 can be opened. This prevents accidents such as water spraying from the nozzle outside the machine when the door 4 is opened.

However, on the other hand, when the door 4 is closed, the user can grasp the opening/closing lever 8 and pull it toward them, and then rotate it upward without changing the hand holding the opening/closing lever 8 to open the door 4. With this configuration, the user can perform the entire process from pulling the opening/closing lever 8 toward them to rotating it upward in one continuous motion. Of course, when closing the door 4 in an open position, the user also presses down on part of the first door 4a to rotate the door 4 downward, and finally applies force to the rear side to push it in, which engages the latch and closes the door. Therefore, the entire process from rotating the door 4 downward to closing it can also be performed in one continuous motion. As such, the configuration of this embodiment allows the user to safely and smoothly open and close the door 4.

[Door shape and position]
Next, the detailed shapes of the first door 4a and the second door 4b and the closing method thereof will be described.

When the opening 5 is closed, the first door 4a is closed so as to cover the second door 4b, which is shorter in height than the first door 4a. Here, part of the inner surface of the first door 4a is located above the upper edge of the second door 4b. Furthermore, the upper edge 16 of the second door 4b is in contact with part of the inner surface of the first door.

The first door 4a has an inner blocking portion 15 that protrudes from its inner surface, and when the door 4 is closed, the upper end 16 of the second door 4b comes into contact with the inner blocking portion 15, so that the opening 5 is completely blocked by the second door 4b and the inner blocking portion 15.

When the contact area between the second door 4b and the inner blocking portion 15 is the door inlay portion, the outer surface of the door inlay portion is covered by the first door 4a, so that the opening 5 is closed by a double door structure consisting of an inner door made up of the second door 4b and the inner blocking portion 15, and an outer door made up of the outer surface of the first door 4a. However, as shown in Figure 1, the opening 5 appears to be a single door made up of the first door 4a.

This double door structure can more reliably prevent wash water from escaping outside the machine. Wash water sprayed from the nozzle during washing first hits the inner closing part 15 and the inner surface of the second door 4b. At this time, the narrower the distance between the inner closing part 15 and the second door 4b, the more likely it is that the water will reach the outside of the machine.
This reduces the probability that the sprayed water will pass through the gap between the inner blocking portion 15 and the second door 4b and splash onto the first door 4a. Furthermore, if the second door 4b and the inner blocking portion 15 are in contact with each other to form a door inset portion, the probability that the sprayed water will pass through and splash onto the first door 4a is even lower.

With this configuration, even when the door 4 is open, as shown in Figures 12 to 14, the tip of the inner blocking portion 15 is primarily located further back in side view than the second door 4b. Therefore, even if water is sprayed and adheres to the inner blocking portion 15 and flows toward the tip of the inner blocking portion 15, the dripping water is received by the second door 4b, preventing the water from dripping outside the aircraft.

Furthermore, when door 4 is in the open position as shown in Figures 12 to 14, water guide plate 41, which guides water droplets that have run down from the inner surface of door 4 into housing 2, is located further inward from the washing tub than the tip of second door 4b in a side view. Specifically, the rear end of water guide plate 41 is fixed to the inner surface of first door 4a, while the front end hangs down due to its own weight. Because the front end is not fixed, it is configured to move freely based on the rotational position of door 4 and its own weight, with the fixed rear end acting as an axis. The front end forms a slope downward toward the front, which guides water droplets that have run down from the inner surface of door 4 into housing 2. Furthermore, even if water droplets adhering to the inner surface of door 4 run down after washing and drip from the tip of door 4, the slope on the front side of water guide plate 41 is located further inward from the washing tub than the tip of second door 4b in a side view, preventing the water droplets from falling outside the dishwasher 1.

[Water sealing member of second door 4b]
Next, a sealing method for the vicinity of the second door 4b will be described. Figure 16(a) is a cross-sectional view of the inner contact portion of the door 4 when the door 4 is closed. Figure 16(b) is a cross-sectional view of the tip of the second door 4b when the door 4 is open. The following description will be made with reference to Figures 4, 5, and 16.

The tip of the second door 4b has a first water seal member 17 that extends left and right. The first water seal member 17 is arranged to protrude forward relative to the second door 4b, and when the door 4 is closed, the first water seal member 17 contacts and seals the inner blocking portion 15 in a substantially vertical direction, as shown in Figure 16(a). By sealing in a substantially vertical direction in this manner, the inner contact portion of the door can be reliably sealed. Furthermore, because the seal only covers the area between the second door 4b and the inner blocking portion 15, the amount of water sprayed directly onto the water seal member is small, minimizing damage to the water seal member and delaying deterioration of the seal.

The tip of the first water seal member 17 is uniformly and approximately V-shaped, and when the door 4 is open, as shown in Figure 16(b), the V-shaped space portion 18 of the first water seal member can receive a small amount of water. With this configuration, even if a small amount of water drips from the tip of the inner blocking portion 15 when the door 4 is open, the V-shaped space portion 18 can receive the water, preventing it from dripping outside the machine.

Furthermore, the second door 4b has second water sealing members 19, shown as ellipses in Figure 5, on both the left and right ends of the first water sealing member 17. The second water sealing member 19 has a front portion 21 and a corner portion 20 that extend outward in the left-right direction from the first water sealing member 17. The inner blocking portion 15 also has recesses 22 on both the left and right ends and a slope 23 that slopes downward toward the back side in order to be sealed by the water sealing member. When the door 4 is closed, the left side of the corner portion 20 comes into contact with the inner surface of the housing 2, the top surface of the corner portion 20 comes into contact with an annular gasket 24 that is provided to surround the periphery of the cleaning tank, and the front side of the corner portion 20 comes into contact with the slope 23. The width of the corner portion 20 is the same as the width of the annular gasket 24. Furthermore, the front portion 21 is in contact with the recess 22 of the inner blocking portion 15, and this configuration seals the corners 20 and front portion 21 of the second water sealing member 19 with the inner surface of the housing 2 and the inner blocking portion 15.

The second door 4b also has a third water seal member 25, which extends left and right in a flat plate shape, on the rear side opposite the first water seal member 17. When the second door 4b is closed, the third water seal member 25 comes into contact with the housing 2 in a substantially vertical position, covering and concealing the gap between the housing 2 and the bottom surface of the second door 4b, thereby sealing the gap between the housing 2 and the bottom surface of the second door 4b.

This configuration ensures that water droplets that hit the periphery of the second door 4b are sealed away and do not escape outside the aircraft.

When the door 4 is closed, these water sealing members of the second door 4b seal the area around the inner closing portion 15 and the second door 4b, and the first door 4a closes to cover the second door 4b. While the water sealing members alone have low soundproofing performance, this embodiment has a double door structure in which the outer surface of the water sealing member located at the door contact portion between the second door 4b and the inner closing portion is also sealed by the first door 4a, thereby suppressing water hammer noise during washing that leaks from the door contact portion. This configuration allows the dishwasher 1 to achieve washing with even less noise.

The dishwasher of this embodiment is configured as described above.

[Effects of the present embodiment]
The cleaning device according to this embodiment can provide the following effects.

The dishwasher 1 according to embodiment 1 of the present disclosure comprises a housing, a washing tub provided within the housing for containing items to be washed, an opening provided in the washing tub, and multiple doors for closing the opening. When the opening is closed, a first door of the multiple doors is closed so as to cover a second door, and a portion of the inner surface of the first door is positioned above the upper end of the second door.

With this configuration, the cleaning water is sprayed onto part of the inside surface of the first door 4a and onto the second door 4b, narrowing the area of water directly sprayed onto the first door 4a, which is located on the outside and obscures the second door 4b. Therefore, even when the door 4 is open, only a small amount of water drips from the first door 4a, reducing the risk of water dripping from the door 4 getting the outside of the machine wet.

In the dishwasher 1 according to embodiment 1 of the present disclosure, the upper end of the second door contacts a portion of the inner surface of the first door.

With this configuration, cleaning water is sprayed onto part of the inside surface of the first door 4a and onto the second door 4b, making it less likely to be sprayed directly onto the first door 4a, which is located on the outside and obscures the second door 4b. Therefore, even when the door 4 is open, there are fewer water droplets dripping from the first door 4a, reducing the risk of water dripping from the door 4 getting the outside of the machine wet. The double-door structure also improves waterproof and soundproofing performance.

The dishwasher according to embodiment 1 of the present disclosure is configured so that the multiple doors open and close vertically, and is equipped with a linking mechanism that links the second door when a first door of the multiple doors opens or closes.

This configuration allows one door to be opened or closed at the same time as other doors, improving operability for the user. Furthermore, even when there are multiple doors, all doors can be opened or closed using a single opening/closing mechanism.

In the dishwasher 1 according to the first embodiment of the present disclosure, the first door is a door that rotates upward to open, and the second door is a door that rotates downward to open, and when the doors are closed,
The height of the door is configured to be smaller than the height of the first door, and when the opening is closed, the interlocking means closes the second door before closing the first door.

This configuration allows the first door 4a to be closed so as to cover and conceal the second door 4b.

In the dishwasher 1 according to embodiment 1 of the present disclosure, the first door has an inner closing portion that protrudes from its inner surface, and when the door is closed, the upper end of the second door comes into contact with the inner closing portion, and the opening is completely closed by the second door and the inner closing portion.

With this configuration, cleaning water is sprayed onto part of the inside surface of the first door 4a and onto the second door 4b, and is less likely to be sprayed directly onto the first door 4a, which is located on the outside and obscures the second door 4b. As a result, even when the door 4 is open, there are fewer water droplets dripping from the first door 4a, reducing the risk of water dripping from the door 4 getting the outside of the machine wet. Furthermore, the opening 5 has a double-covered structure, which improves waterproofing and soundproofing performance.

In the dishwasher 1 according to embodiment 1 of the present disclosure, when the contact portion between the second door and the inner closing portion is the door inset portion, the outer surface of the door inset portion is covered by the first door, thereby closing the opening with a double door structure and forming the appearance of a single door by the first door.

With this configuration, the opening 5 has a double-covered structure, improving waterproof and soundproofing performance. Furthermore, because the exterior is formed by only one door, the first door 4a, it is possible to provide a simple and sophisticated design while maintaining performance.

In the dishwasher 1 according to embodiment 1 of the present disclosure, the second door has a water seal, and when the door is closed, the inner contact portion of the door is sealed by a first water seal provided at the tip of the second door.

This configuration allows for a seal between the inner blocking portion 15 and the second door 4b. Furthermore, even if the first water sealing member 17 deteriorates, the outer surface of the first water sealing member 17 is covered by the first door 4a, so waterproof performance can be maintained.

In the dishwasher 1 according to embodiment 1 of the present disclosure, the first water seal member is arranged to protrude forward relative to the second door, and when the door is closed, the water seal member at the tip of the second door comes into contact with the inner closing portion in a substantially vertical direction to form a seal.

This configuration ensures a reliable seal between the inner blocking portion 15 and the second door 4b.

In the dishwasher 1 according to embodiment 1 of the present disclosure, the tip of the first water seal member is uniformly and approximately V-shaped, and when the door is open, the V-shaped portion of the first water seal member can receive a small amount of water.

With this configuration, the first water seal member 17 has a V-shaped space portion 18, and when the second door 4b is open, the V-shaped space portion 18 can catch water droplets dripping from the first door 4a, thereby preventing water droplets from dripping outside the aircraft.

In the dishwasher 1 according to embodiment 1 of the present disclosure, the second door has second water sealing members on both the left and right ends, which come into contact with both the left and right ends of the inner closing portion and the inner surface of the housing to form a seal when the door is closed.

With this configuration, the second door 4b can seal not only the top edge 16, but also the left and right sides of the inner blocking portion 15 and the gap between it and the housing 2. Furthermore, by providing a solid seal around the periphery of the second door 4b, waterproofing can be improved without providing a seal on the first door 4a. Also, because the first door 4a does not have a seal, the seal with poor soundproofing performance can be covered by the first door 4a, reducing the impact of water hammer noise and improving soundproofing performance.

In the dishwasher 1 according to embodiment 1 of the present disclosure, the inner closing portion has a water guide plate on the inner surface near the tip that contacts the second door, and when the door is open or in the middle of pivoting, the tip of the inner closing portion and the water guide plate are located closer to the washing tub than the second door in a side view.

This configuration allows water droplets running down the inner surface of the first door 4a to be guided into the cleaning tank 3 and drip down. This prevents the outside of the machine from getting wet, ensuring a comfortable user experience.

While the present invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. Such variations and modifications are to be understood as included within the scope of the present invention as defined by the appended claims, unless they depart therefrom.

Note that the above-described embodiments are intended to illustrate the technology disclosed herein, and various modifications, substitutions, additions, omissions, etc. may be made within the scope of the claims or their equivalents.

This disclosure is applicable to cleaning devices that can use detergents. Specifically, this disclosure is applicable to dishwashers and the like.

REFERENCE SIGNS LIST 1 Dishwasher 2 Housing 3 Washing tub 4 Door 4a First door 4b Second door 5 Opening 6 Washing nozzle 7 Tower nozzle 8 Opening/closing operation lever 9 Dish basket 10 Dish basket upper shelf 11 Door lower recess 12 Operation display unit 13 Water storage tank 14 Tank lid 15 Inner closing portion 16 Upper end of second door 4b 17 First water sealing member 18 V-shaped space portion 19 Second water sealing member 20 Corner portion 21 Front portion 22 Recess 23 Slope 24 Annular packing 25 Third water sealing member 30 Control unit 31 Heater 32 Washing pump 33 Process control unit 41 Water guide plate 42 Latch 43 Latch engagement groove 44 Latch connecting spring 45 Metal plate 46 Lever connecting plate 47 Tip hook portion 48 Door open/close detection unit 481 Switch lever 482 Switch lever plate 483 Microswitch 50 Interlocking means 51 First support member 52 Link member 53 Second support member 54 Third support member 55 First support shaft 56 Second support shaft 57 Third support shaft 58 Fourth support shaft 59 First spring 60 Second spring 61 Third spring 62 First rotation stopper 63 Second rotation stopper 64 Arc-shaped protrusion 65 Fifth support shaft

Claims (9)

The housing and
a cleaning tank provided in the housing and configured to accommodate an object to be cleaned;
an opening provided in the cleaning tank;
a plurality of doors that close the opening,
The plurality of doors include a first door that pivots upward to open and a second door that pivots downward to open,
When the opening is closed, the first door is closed so as to cover and conceal the second door,
the first door has an inner closing portion that protrudes from an inner surface and closes a part of the opening,
In the closed state of the door,
The entire opening is closed by the second door and the inner closing portion, and a contact portion between the second door and the inner closing portion is covered by the first door.
dishwasher. The plurality of doors are configured to open and close vertically,
and a linking means for linking a second door when a first door of the plurality of doors is opened or closed.
2. The dishwasher of claim 1. 3. The dishwasher according to claim 2, wherein when the doors are closed, the height of the second door is smaller than the height of the first door, and when the opening is blocked, the interlocking means closes the second door before closing the first door. When the contact portion between the second door and the inner blocking portion is a door inward contact portion, the outer surface of the door inward contact portion is covered by the first door, so that the opening is blocked by a double door structure,
On the outside, it is formed by a single door,
The dishwasher according to any one of claims 1 to 3. When the door is closed, the door inner contact portion is sealed by a first water sealing member provided at the tip of the second door.
5. The dishwasher of claim 4. the first water sealing member is provided so as to protrude forward relative to the second door,
6. The dishwasher of claim 5, wherein, when the door is in a closed state, the first water seal member contacts and seals with the inner closing portion in a substantially vertical direction. The first water sealing member has a tip end that is uniformly and approximately V-shaped,
7. The dishwasher according to claim 5, wherein the V-shaped portion of the first water seal member is capable of receiving a small amount of water when the door is in an open state. the second door has second water sealing members on both left and right ends,
The dishwasher according to any one of claims 5 to 7, wherein, when the door is in a closed state, the second water seal member contacts both left and right ends of the inner closing portion and an inner surface of the housing to form a seal. the inner blocking portion has a water guide plate on an inner surface near a tip that contacts the second door,
When the door is in an open state or during rotation, a tip end of the inner closing portion and a water guide plate are located closer to the cleaning tank than the second door in a side view.
The dishwasher according to any one of claims 1 to 8.