JPH09164102A - Dish washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dish washer high in safety whose watertightness is improved and whose door will not be opened incidentally without providing a surplus projection around the outer circumference of the main body which is kept compact. SOLUTION: This disk washer comprises a main body whose front has an opening closed by a door device. The door device is composed of a first door 3 for closing the opening one end of which is pivotally attached to the main body on one side of the opening and a second door 4 which is pivotally attached on the side of the free end of the first door 3 and can be overlapped on the outer side of the first door 3. A latch can keep the overlapped state of the second door 4 over the first door 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing dishware stored in a washing tank by spraying washing water.

[0002]

2. Description of the Related Art FIG. 15 is a perspective view of a dishwasher disclosed in Japanese Utility Model Laid-Open No. 63-79551, and FIG. 16 is a longitudinal sectional view of the same. In the figure, reference numeral 51 denotes a main body of a dishwasher, which basically has a rectangular parallelepiped shape, and a front surface thereof has an oblique opening 52 inclined upward from a front surface side to a rear surface side.
Is provided. Reference numeral 53 denotes a frame body provided on the outer peripheral edge of the opening 52 of the main body 51. The frame body 53 has an outer peripheral wall 54 and an inner peripheral wall 54 with a predetermined space therebetween.
The inner peripheral wall 55 is formed to be lower than the above. A groove 56 is formed by the outer peripheral wall 54 and the inner peripheral wall 55. Further, as shown in FIG. 16, a seal member 57 with which an opening end portion of a door body described later abuts is provided on the entire inner circumference of the inner peripheral wall 55. Further, a communication part 58 for communicating the groove part 56 with a cleaning tank described later is provided on the front part of the frame body 53.
Is provided.

Referring again to FIG. 15, the structure of the conventional dishwasher will be described. Reference numeral 59 denotes a door body that opens and closes the opening portion 52 of the main body 51 so as to be openable and closable, and reference numerals 60 and 61 denote hinge members that are provided above the door body 59 and rotatably support the door body 59.
Is a handle provided for opening and closing the door body, which is provided substantially in the center of the front surface of the door body 59, and 63 is a clamp formed under the handle 42. The clamp 63 has a frame 53 as shown in FIG.
Clamp receiver 6 provided under the outer peripheral wall 54 in
4 and the door body 59 is stopped on the main body 41.

Next, the internal structure of a conventional dishwasher will be outlined with reference to FIG. Reference numeral 65 is a cleaning tank provided in the main body 51, and 66 is a water storage section provided at the bottom of the cleaning tank 65 for storing cleaning water. 67 is an injection nozzle that is provided at the inner bottom of the cleaning tank 65 and injects cleaning water from the injection port 68, and has a structure that can rotate around the central axis and spray cleaning water evenly on all dishes. There is. 69 is a cleaning tank 65
Is a heating device installed at the bottom of the injection nozzle 67 at the bottom of the above, and heats and raises the temperature of washing water and heats and dries tableware described below. 70 is a washing pump provided outside the bottom wall of the washing tank 65, 71 is a water supply pipe connecting the washing pump 70 and the injection nozzle 67, 72 is a water absorption pipe provided in the washing pump 70, one end of which is a water storage section. It is facing 66. Reference numeral 73 is a drainage pump for discharging the wash water of the water storage section 66, and 74 is a drainage pipe provided in the drainage pump 73, one end of which faces the lowest portion of the water storage tank 66 and the other end of which faces the outside of the main body 51.

Reference numeral 75 denotes a water supply plug for supplying external water into the cleaning tank 47, with one end facing the cleaning tank 65 and the other end facing the outside of the main body 51. A control unit 76 controls processes such as cleaning, drainage, and drying, and has an operation unit on the outer surface of the main body 51. Reference numeral 77 is a tableware basket stored in the cleaning tank 65, which stores tableware 78 such as a bowl, a bowl and a plate.

The steps of dishwashing in the conventional dishwasher configured as described above will be outlined. First, the clamp 6
3 and the clamp receiver 64 are unlocked and the door 58 is rotated upward to open the upper opening 52 of the main body 51. Next, the tableware basket 77 containing the tableware 78 is stored in the cleaning tank 65, the door body 58 is rotated downward to close the upper opening 52, and the clamp 63 is locked to the clamp receiver 64. 58 is brought into close contact with the main body 51. At this time, the opening end of the door 58 comes into close contact with the sealing member 57 provided on the frame 54, and the upper opening 52 is closed in a sealed state.

Next, the operating portion of the control unit 76 is operated to open the water tap 75 to supply the washing water into the washing tank 65, and when a desired amount of washing water is accumulated, the water tap 75 is closed to stop the water feeding. .
Next, the washing pump 70 is operated to send the washing water in the water reservoir 66 to the water supply pipe 71 through the water suction pipe 72, and the injection nozzle 6
Pump to 7. The wash water pumped is jetted from the jet port 68 into the washing tank 65, and the washing process of the tableware 78 is started. The sprayed cleaning water is returned to the water storage unit 66, sprayed again from the spray nozzle 67, and this is repeated. In addition, a part of the cleaning water is scattered on the inner surface of the door body 58 and adheres to the inner surface of the door body 5,
Although it travels down the inner surface of 8 and descends, this cleaning water is blocked by the seal member 57 and returned to the cleaning tank 65.

Even if the seal member 57 has a defect or the door 58 and the main body 51 are in contact with each other and wash water leaks from the upper opening 52, the wash water is trapped in the groove 56 and does not leak to the outside. It is structured. The cleaning water collected in the groove 56 is returned to the cleaning tank 65 through the communication port 58.
When the cleaning process for the desired time is completed, the control unit 76 stops the driving of the cleaning pump 70 and drives the drainage pump 73 to discharge the cleaning water to the outside of the main body 51 through the drainage pipe 74. Next, the drainage pump 73 is stopped, the water tap 75 is opened again, new washing water is supplied, and the rinsing step is performed. The operation of the rinsing process is the same as that of the above-mentioned cleaning process, and therefore its explanation is omitted. When the rinsing step is finished, the washing water is drained, then the heating device 69 is energized to dry the dishes 78 and the inside of the washing tank 65, and when this drying step is completed, all the dish washing steps are completed.

[0009]

In the conventional dishwasher configured as described above, in order to prevent water leakage of the wash water to the outside of the main body 51, the frame body 53 installed around the outer periphery of the main body 51. Since it is necessary to form the groove portion 56 in the main body 51, the outer size of the main body 51 is increased, the installation space is limited, and the handling property such as taking in and out of tableware is deteriorated. Further, since the handle 62 and the clamp 63 are provided so as to project to the front side of the main body 51, the user's hand and fingers are easily touched, and the door body 59 is unnecessarily opened, so that the body is flushed with washing water. There was a risk of taking a bath or receiving hot air for drying, which caused a problem from a safety point of view. Further, since the door body 59 has a structure in which only one place is held by the clamp 63, the close contact between the door body 59 and the main body 51 cannot be said to be reliable, and there is a risk of water leakage.

The present invention has been made in order to solve such a problem, and improves the water leakage prevention performance while maintaining compactness without providing an extra protrusion on the outer periphery of the main body 51, and the door body 59 is not provided. The purpose is to obtain a highly safe dishwasher that does not open to the public. Further, the purpose of the present invention is to obtain a dishwasher in which the door and the main body can be surely brought into close contact with each other and there is no risk of water leakage.

[0011]

DISCLOSURE OF THE INVENTION A dishwasher according to the present invention is a dishwasher having a door device which is attached to a main body having an opening on the front surface and closes the opening. A first door that is located on one side and is pivotally attached to the main body and closes the opening; and a first door that is located on the free end side of the first door and is pivotally attached to the main body and that is outside the first door. And a second door that can be superposed on the first door,
A holding means for holding the door and the second door in a superposed state is provided.

The first door is pivotally attached to the upper portion of the opening, and the second door is pivotally attached to the lower portion of the opening, and
The second door is provided with a tilt holding means for holding the second door in the tilted state with the pivotal portion downward when opening the second door, and the free end of the second door in the tilted holding state of the second door. The side end is located in front of the rotation area of the first door.

Further, a step portion for accommodating the second door so that the front surfaces of both doors are flush with each other when the first door and the second door are superposed is provided on the front surface of the first door on the free end side. It is a thing.

Further, an engaging portion provided on the step portion of the first door and an engaging portion provided on the step contact surface of the second door,
And a locking portion that engages with the engaging portion of the first door and pushes down the first door when the second door is closed.

Further, the holding means is provided in a locking hole formed in the end surface of the step portion of the first door and in a free end portion of the second door, and is detachably locked in the locking hole. It is composed of a locking portion.

Further, a groove portion for catching water droplets adhering to the first door is provided at an end portion of the first door on the pivot side.

Further, a safety means for turning off the power is provided in association with the opening of each of the first door and the second door.

[0018]

1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a perspective view of the dishwasher shown in FIG. 1 with a door open. In FIG. 1, reference numeral 1 denotes a main body of a dishwasher, which basically has a rectangular parallelepiped shape, and an opening 2 is formed by opening the upper half of the front surface and the front half of the upper surface. Reference numeral 1a is a ventilation hole provided in the rear half of the upper surface of the main body 1. Reference numeral 3 denotes a first door that closes the opening 2, which is formed in an L-shaped vertical cross section, and one end side of which is rotatably attached to the main body 1. A second door 4 is provided on the front surface of the main body 1 and closes a part of the opening 3 so as to overlap the lower outer surface of the first door 3. Reference numeral 5 is an operation unit provided on the front surface of the main body 1, and 6 is a power switch.

Next, the internal structure of the dishwasher of this embodiment will be outlined with reference to FIG. Reference numeral 7 is a cleaning tank provided inside the main body 1, and 8 is a first injection nozzle provided at the inner bottom of the cleaning tank 7 for injecting the cleaning water supplied from the water supply pipe 9. Reference numeral 10 is a second spray nozzle installed on one side wall of the cleaning tank 7, 11a is a first accessory case for accommodating a spoon or the like, and 11b is a second accessory container for accommodating chopsticks or the like. In addition, a dish basket (not shown) is stored in the cleaning tank 7,
Bowls, dishes and other tableware will be held in this tableware basket. Further, the bottom of the washing tank 7 has a blowing outlet for warm air, which also has a function of drying washed dishes.

Next, details of the structure of the first door 3 will be described. The first door 3 is, as shown in FIG. 1, a window portion 13 which is formed by sticking a transparent plate and is located in front of the door 13.
And both side portions 12 of the window portion 13, a step portion 15 recessed from the window portion 13 at a lower portion of the window portion 13, and an upper surface portion 16. FIG. 3 is an enlarged view of the part A in FIG. 2 viewed from the direction of arrow A. The side portions 12 and the step portion 15 of the first door 3 will be described based on FIG. 3. The both side portions 12 have an outer wall portion 12a and an inner wall portion 12b formed apart from the outer wall portion 12a by a predetermined distance.
The outer groove portion 12c is formed by. An inner groove 12d is formed inside the inner wall 12b, and a packing 21 is attached to the inner groove 12d.
Further, packing 17 is also attached to the lower end of the step portion 15.

FIG. 4 is an explanatory view for explaining the side wall portion of the main body 1. The side wall portion of the main body 1 has an outer wall portion 1b and an inner wall portion 1c which is separated from the outer wall portion 1b by a predetermined distance, and a groove portion 1d is formed by these both walls 1b and 1c.
FIG. 5 is a view of the BB portion of FIG. 4 viewed from below with the first door 3 closed. The relationship between the first door 3 and the side wall of the main body 1 will be described with reference to FIG. When the first door 3 is closed, the outer wall portion 1b of the main body 1 is inserted into the outer groove portion 12c of the first door 3,
The end portion of the inner wall portion 1c of the main body 1 contacts the packing 21 provided on the first door 3. The contact between the end of the inner wall 1c and the packing 21 brings the first door 3 and the main body 1 into a watertight state.

FIG. 6 is a longitudinal sectional view of a part of this embodiment shown in FIG. As shown in FIG. 6, the step portion 15 of the first door 3
Has a stepped shape that is recessed inward of the window portion 13, and a recessed portion 15a is provided on the front side thereof. Also, the first
A groove 3a is formed at the inner rear end portion of the door 3, as shown in FIG.
As shown in FIG. 3, when the first door 3 is opened, water droplets attached to the inner surface of the first door 3 are captured and prevented from leaking to the outside.

Next, the second door 4 will be described. The second door 4 is rotatably attached to the lower side 1b of the opening of the main body 1 with both sides of the lower portion as fulcrums. Then, when the second door 4 is rotated by a predetermined angle and opened, the lower end inclined portion 4 of the second door 4 is opened.
It is configured that a is locked to the step portion 1c formed on the lower side 1b of the opening of the main body 1. Therefore, the second door 4 is rotated by a predetermined angle and held in an inclined state with the fulcrum side down. Further, a step portion 4b protruding downward is formed inside the lower end portion of the second door 4, and the outer surface of the step portion 4b and the inner surface of the step portion 1c of the main body 1 are brought into contact with each other so that the second door The lower end of 4 has a structure that is hermetically sealed.

FIG. 7 is an explanatory view for explaining the inclined holding state of the second door 4. In FIG. 7, the arrow drawn from the tip of the packing 17 installed on the first door 3 indicates the rotation trajectory of the first door 3. As shown in FIG. 7, the free end side tip of the second door 4 in the inclined holding state of the second door 4 is configured to be located in front of the rotation area of the first door 3. Therefore, the water droplets attached to the back surface side of the first door 3 are captured by the second door 4 when the water droplets are opened.

Reference numeral 17 is a latch provided on the upper end of the second door 4 so as to be capable of retracting in the vertical direction, 18 is a spring for urging the latch 17 upward, and 19 is an operating lever of the latch 17. The latch 17 is provided for the window portion 1 of the first door 3 when the second door 4 is closed.
2 is inserted into a locking hole 13a provided at the lower end of
Hold the door 4. Reference numeral 4c denotes a convex portion provided on the inner surface side of the second door 4, and when the second door 4 is closed, the convex portion 4c is engaged with the concave portion 15a provided on the first door 3 to move the first door 3 downward. It works to push down. For this reason, the first door 3 is pressed toward the main body 1 side, the packing 21 installed on the first door 3 comes into close contact with the end portion of the inner wall portion 1c of the main body 1, and the packing 17 provided at the lower end portion of the stepped portion 15. Is pressed against the lower side 1b of the opening of the main body 1 to be in a watertight state.

The opening / closing operation of the first door 3 and the second door 4 will now be described. When closing the door, first close the first door 3. Next, the front portion of the second door 4 is rotated by pushing it toward the main body 1 side and is pushed against the first door 3 side. At this time, as described above, the convex portion 4c provided on the second door 4 engages with the recessed portion 15a provided on the first door 3, and acts so as to push down the first door 3, 1 The door 3 and the main body 1 are in a watertight state. Then, in this state, the latch 17 is inserted into the locking hole 13a and the second door 4 is held. The front surface of the second door 4 and the window portion 13 of the first door 3 are flush with each other when the second door 4 is closed, as shown in FIG.

When the door is opened, the operation lever 19 is pushed down to release the lock between the latch 17 and the lock hole 13a,
The second door 4 is rotated and opened. At this time, since the lower end portion 4a of the second door 4 is locked to the lower opening side 1b of the main body 1,
The door 4 rotates by a predetermined angle and is held in an inclined state (see FIG. 7). Next, the first door 3 is rotated upward so as to be opened and opened. At this time, the first door 3
Although the water droplets that have adhered to the will drop, as described above, the tip position of the second door 4 in the inclined holding state is the first position.
Since the door 3 is located in front of the rotation area, the water droplets are captured by the second door 4 and returned to the cleaning tank 7. Therefore, the area around the dishwasher is not polluted.

Reference numeral 20 is a blocking plate installed on the inner upper surface of the main body 1 to block the washing water. 8 is an enlarged cross-sectional view of the blocking plate 20 shown in FIG. 6, and FIG. 9 is an enlarged view of the blocking plate 20 in the cross section of FIG. The blocking plate 20 will be described with reference to FIGS. 8 and 9. The blocking plate 20 has one end fixed to the main body 1 side and the other end side as a free end, which is attached so as to be inclined downward toward the rear surface of the main body 1. The mounting position is a position below the ventilation hole 1a provided on the upper surface of the main body 1. The blocking plate 20 prevents the wash water from spouting from the ventilation hole 1a during the washing of the dishes, and prevents the warm air from directly flowing out from the ventilation hole 1a during the drying of the dishes. Further, it also has a function of preventing the washing noise during the washing of the dishes from directly leaking from the ventilation hole 1a to reduce the noise.

Reference numeral 20a is a triangular convex strip formed on the upper surface of the blocking plate 20, and a plurality of strips are provided in the front-rear direction with respect to the main body 1. As shown in FIG. 8, the triangular ridges 20a serve to smoothly guide water drops that have fallen from the ceiling surface of the main body 1 onto the blocking plate 20 to the rear side of the main body 1. 20b is a blocking plate 2
A plurality of triangular grooves are provided on the lower surface of 0 in the front-back direction with respect to the main body 1. The triangular groove 20b has a function of reflecting the washing water jetted from the second jet nozzle 10 installed on the side wall of the washing tank as shown by the arrow in FIG. 9 and changing the direction thereof to the direction of dishes. ing. In this way, the blocking plate 20 having the triangular groove 20b also has a function as a scattering plate that scatters the cleaning water. The effect of the triangular groove 20b can enhance the effect of washing dishes.

FIG. 10 shows the main body 1 of this embodiment shown in FIG.
FIG. 3 is a side view showing a state in which a cover on the side surface of FIG. In the figure, reference numeral 24 is a first opening / closing mechanism portion that opens and closes the power supply circuit in conjunction with opening and closing of the first door 3, and a switch button 25a of the micro switch 25 in association with opening and closing of the micro switch 25 and the first door 3. And an operation piece 26 for operating. In addition, these micro switch 25 and operation piece 2
6 is fixed to the main body 1 by a mounting plate 27.

FIG. 11 is an exploded perspective view of the first opening / closing mechanism portion. Details of the first opening / closing mechanism will be described with reference to FIG. The micro switch 25 is mounted on the main body 1 via a mounting plate 27.
Attached to the side wall of. The operation piece 26 is a circular bottomed frame body, and a cylindrical bearing portion 26a is provided inside thereof. The operation piece 26 is rotatably attached to the main body 1 by inserting the bearing portion 26a into a shaft 28 fixed to the main body 1 side. 29 is a bearing portion 26
It is a Tsurumaki spring attached to a and its one end 29a
Is configured to engage with an engaging portion 27 a provided on the mounting plate 27. Further, an operation portion 26b for operating the switch button 25a of the micro switch 25 is provided on the outer surface of the operation piece 26 so as to project.

Here, the mounting structure of the first door 3 to the main body 1 will be described. As shown in FIG. 12, the first door 3 has a structure in which both end portions 30 at the rear portion of the upper surface are attached to the end operation piece 26 and rotate together with the operation piece 26. Then, when the first door 3 is closed, the crane spring 29 is twisted and biased in the direction to open the first door 3.
Therefore, there is an effect that the force when the user opens the first door 3 can be reduced.

Referring again to FIG. 10, the main body 1 of this embodiment
The structure of the side surface will be described. Reference numeral 31 is a second opening / closing mechanism portion that opens and closes the power supply circuit in conjunction with opening and closing of the second door 4, and a switch button of the second micro switch 32 in conjunction with opening and closing of the second micro switch 32 and the second door 4. 32a
And an operation piece 33 for operating. Operation piece 3
As shown in FIG. 13, 3 is attached to one side of the second door 4 and rotates about the rotation axis of the second door 4 in conjunction with the rotation of the second door 4. Then, when the second door 4 is closed, the operation portion 33a provided at the tip of the operation piece 33 is configured to press the switch button 32a of the second micro switch 32.

The first opening / closing mechanism section 24 and the second opening / closing mechanism section described above constitute a safety circuit.
4 is a circuit diagram of this safety circuit. In the figure, 6 is a power switch, 25 is a first micro switch, and 32 is a second switch.
Microswitches, which are shown in FIGS. 1 and 10. Reference numeral 35 is a relay operated by a control signal from the control unit 34, 36 is a motor, 37 is a heater, and 38 is a transformer.

The operation of the safety circuit of this embodiment will be described with reference to FIGS. First, when washing the dishes, both the first door 3 and the second door 4 are opened, and the dish basket containing the dishes is put in the washing tank. At this time,
The power switch 6, the first micro switch 25, and the second micro switch 32 are all open. When the dish basket has been put into the washing tank, the first door 3 is closed. As a result, the switch button 25a of the first micro switch 25 is turned on by the operation portion 26b of the operation piece 26. Further, when the second door 4 is closed, the switch button 32a of the second micro switch 32 is turned on by the operation portion 33a of the operation piece 33. However, in this state, since the power switch 6 is not turned on, the control section 34 is not energized and the relay 35 remains open. Next, when the power switch 6 is turned on, the control section 34 is energized and the relay 35 is closed. This causes the circuit to close and dishwashing to begin.

When the washing of the dishes is completed, the power switch 6 is opened and the circuit is opened. Further, when the door is opened during the washing of the dishes, the second door 4 is opened first, but when this is opened, the second micro switch 32 is opened, whereby the relay 35 is controlled by the control of the control unit 34. Open. This opens the circuit and interrupts the flow of electricity. Therefore, even if the door is opened during the dishwashing, the power is shut off by opening the second door 4, which is safe.

[0037]

As described above, the present invention has the following advantages.

A second door is provided on the outside of the first door so that the second door can be superposed.
Since the overlapping state of the first door and the second door is maintained,
It is possible to ensure that the opening is closed by the first door.

Further, since the second door is held in the inclined state when it is opened, the length of the second door in the direction of the free end is set to the length which covers the rotating area of the first door below. Water droplets dripping from the first door when the first door is opened can be reliably captured by the second door, and the outside of the main body is not polluted.

Furthermore, since the first door is provided with a step so that the front surfaces of both doors are flush with each other when the first door and the second door are superposed, the front surface of the main body has no projecting portion, and cleaning work or the like is performed. The property is improved.

Further, the step portion of the first door is provided with an engaging portion, and the second door is engaged with the engaging portion when the second door is closed to push down the first door. Since the locking portion is provided, it is possible to more reliably close the first door.

Further, a holding means is provided at a locking hole provided at the end surface of the step portion of the first door and at a free end portion of the second door.
Since it is configured with a locking part that removably locks in the locking hole,
The locking part is not exposed on the front of the main unit, and the door will not open due to accidental touch.

Further, since the groove portion for catching the water droplets attached to the first door is provided at the end portion of the pivotal side of the first door, the water droplets attached to the first door may leak to the outside of the main body when the first door is opened. It does not stain the area around the body.

Since the safety means for turning off the power is provided in association with the opening of the first door and the second door, it is safe to open the door while the dishwasher is in operation.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a perspective view of the dishwasher shown in FIG. 1 with a door open.

FIG. 3 is an enlarged view of part A in FIG. 2 viewed from the direction of arrow A.

FIG. 4 is an explanatory diagram for explaining a side wall portion of the main body 1.

5 is a view of a portion B-B in FIG. 4 viewed from below with the first door 3 closed.

FIG. 6 is a partial vertical cross-sectional view of an embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a tilted holding state of the second door 4 according to the embodiment of the present invention.

FIG. 8 is an enlarged cross-sectional view of the blocking plate 20 shown in FIG.

9 is an enlarged view of the blocking plate 20 in the cross section of the present embodiment shown in FIG.

FIG. 10 is a side view of the main body 1 according to the embodiment of the present invention with the side cover removed.

FIG. 11 is an exploded perspective view of a first opening / closing mechanism portion according to the embodiment of the present invention.

FIG. 12 is a perspective view of a back surface portion according to the embodiment of the present invention.

FIG. 13 is a perspective view of a second door according to the embodiment of the present invention.

FIG. 14 is a circuit diagram of a safety circuit according to an embodiment of the present invention.

FIG. 15 is a perspective view of a conventional dishwasher.

FIG. 16 is a cross-sectional view of a conventional dishwasher.

[Explanation of symbols]

1 main body, 1a ventilation hole, 2 opening, 3 first door, 4
2nd door, 6 power switch, 7 washing tank, 8, 10
Nozzle, 12 both sides, 17 latch, 20 blocking plate, 2
0a triangular ridge, 20b triangular groove, 24 1st opening / closing mechanism part, 25 1st micro switch, 26, 33 operation piece, 31 2nd opening / closing mechanism part, 32 2nd micro switch.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsuhiko Ishii 1728 Omaeda, Omaeda, Hanazono-cho, Oza-gun, Saitama 1 Mitsubishi Electric Home Equipment Co., Ltd.

Claims (7)

[Claims] 1. A dishwasher having a door device attached to a main body having an open front surface to close the opening, wherein the door device is pivotally attached to the main body with one end located at one side of the opening. ,
A first door that closes the opening; and a second door that is located on the free end side of the first door and is pivotally attached to the main body and that is provided so as to be superposed on the outside of the first door. A dishwasher comprising: holding means for holding the first door and the second door in a superposed state. 2. The first door is pivotally attached to an upper portion of the opening, the second door is pivotally attached to a lower portion of the opening, and the second door is attached to the second door when the second door is opened. In addition to providing tilt holding means for holding the pivotal portion downward and holding it in a tilted state,
The dishwasher according to claim 1, wherein the tip end of the second door on the free end side in the inclined holding state of the second door is located in front of the rotation area of the first door. 3. The first door is provided on the front surface of the first door on the free end side.
The dishwasher according to claim 1 or 2, further comprising a step portion for accommodating the second door so that the front surfaces of both doors are flush with each other when the door and the second door are superposed. 4. An engaging portion provided on a step portion of the first door, and an engaging portion provided on the step contact surface of the second door,
When the door is closed, the first door is engaged with the engaging portion of the first door.
The dishwasher according to any one of claims 1 to 3, further comprising: a locking portion that pushes the door downward. 5. The holding means is provided in a locking hole provided in a step end surface of the first door and a free end portion of the second door, and is detachably locked in the locking hole. The dishwasher according to claim 4, wherein the dishwasher comprises a locking portion. 6. The dishwasher according to claim 1, wherein a groove for capturing water droplets adhering to the first door is provided at an end of the first door on the pivot side. 7. The dishwasher according to claim 1, further comprising safety means for turning off the power in association with opening of each of the first door and the second door. Machine.