JPH06142027A - Door opening/closing device for dishwasher - Google Patents

Abstract

PURPOSE:To improve workability by opening and closing doors in an interlocked which cover and uncover an opening facing a wash room in and out of which a wash rack is put. CONSTITUTION:The title dishwasher has doors which is opened and closed by being turned upwards and downwards around door turning shafts 27 and 28 which are at each of the front ends of door arms 25 and 26, respectively, and are next to each other. Both the doors are connected so as to be opened and closed in an interlocked operation, by making a first door interlocking plate 31 and a second door interlocking plate 32 project opposite to each other at a specific angle so as to be integrated with the door turning shafts 27 and 28, respectively, and by inserting an interlocking pin 38 into the round hole 33 of a first door interlocking plate 31 and then into the long hole 34 of the second door interlocking plate 32, and by fixing it so as not to slide out of place.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher in which dishes are housed in a washing rack, the washing rack is set in the washing chamber, and the dishes are washed out to wash the dishes.

[0002]

2. Description of the Related Art In a dishwasher used in a small-scale dining room or the like, doors, that is, doors, are used to open and close opposing openings of a washing room so that a washing rack can be inserted through one opening and taken out through the other opening. ing.

Here, the door is a flat door that slides up and down to open and close, as in Japanese Utility Model Publication No. 48-26558, and as shown in Japanese Utility Model Publication No. 2-94765, it operates to rotate in the vertical direction. It may be an open / close door with a half-circle cover.

[0004]

However, any of the doors can be opened and closed independently.

Therefore, when the door on the outlet side is opened after taking out the washing and the washing rack is taken out, the door on the opposite side is opened and the next washing rack is put in. It was not efficient to carry out the cleaning operationally.

The present invention has been made in view of the above points,
(EN) Provided is a dishwasher configured so that both doors can be opened and closed in conjunction with each other to improve workability remarkably and to exhibit sufficient washing ability even with a small model.

[0007]

According to the present invention, there is provided a washing chamber in which an inlet and an outlet of a washing rack are provided so as to face each other, and the inlet and the outlet are provided, and the door pivot shafts of both doors are close to each other. In a dishwasher equipped with a door which is placed at a position for opening and closing in a vertical direction, a door rotating shaft is provided so as to project at a predetermined inclination angle, and a round hole is formed at the tip. One door interlocking plate, a second door interlocking plate that is provided on the other door pivot so as to project so as to be symmetrical with the first door interlocking plate, and has a long hole at the tip, the round hole, and The first and second door interlocking plates are connected to each other by being penetrated by the long hole, and the interlocking pin is provided which slides through the long hole in conjunction with opening / closing of one door and opens / closes the other door. .

Further, according to the present invention, an inlet and an outlet of a washing rack are provided so as to face each other, and an inlet and an outlet are provided at the same time, and the door rotating shafts are arranged at positions close to each other. In a dishwasher equipped with a door that opens and closes in a vertical direction, the first and second door washers are provided so as to be symmetrical with a predetermined inclination angle so as to project from the respective door rotation shafts, and each of which has a long hole at its tip. A one-door interlocking plate and a second door interlocking plate, an interlocking pin that penetrates through each of the long holes to connect the first door interlocking plate and the second door interlocking plate, and the other in conjunction with opening and closing of the one door. And a holding plate having a guide slot for guiding the interlocking pin in the vertical direction so as to open and close the door.

[0009]

[Function] When one of the facing doors is pivotally opened / closed, the interlocking pin moves up and down, and since the interlocking pin is linked to the other door interlocking plate, the other door is also interlocked to move vertically. It can be rotated and opened.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

The dishwasher 1 comprises a washing room 2 and a machine room 3 below the washing room 2. Inside the washing room 2, there are an upper washing nozzle 4a, an upper rinsing nozzle 5a, a lower washing nozzle 4b and a lower rinsing nozzle 5b. Each of them is coaxially supported and is vertically opposed to each other. Each of the cleaning nozzles 4a, 4b and the rinsing nozzles 5a, 5b are provided with a large number of injection ports 6, 7 for vertically injecting the cleaning water and the rinsing water.

On the other hand, the machine room 3 accommodates a washing tank 11, a washing pump 12, a rinsing pump 13 and a booster 14, and the washing pump 12 is driven to drive the washing tank 1
The washing water in 1 is passed through the conduit 8 to the upper and lower washing nozzles 4a,
It is pumped to 4b and ejected. Further, the rinse water is made into hot water by the booster 14, and when the rinse pump 13 is driven, it is supplied to the rinse nozzles 5a and 5b via the pipe 9 and sprayed. Here, the wash water is collected, filtered, and cleaned for reuse.

By the way, the washing chamber 2 has opposite side faces 1
6a and 16b are respectively provided with openings for putting a washing rack 17 for accommodating dishes to be washed into the washing chamber 2 from one side and letting it out from the other side. Further, doors 21A and 21B for closing and opening the opening and opening and closing the cleaning rack 17 are provided. Door 2
1A and 21B are symmetrical, have handles 22a and 22b, and have windows 23a and 2b so that the cleaning chamber 2 can be seen through.
3b is provided.

Here, the doors 21A and 21B are pivotally operated in the vertical direction, and in conjunction with each other, the doors 21A and 21B are interlocked with each other.
B is designed to be opened and closed. Next, the door opening / closing structure will be described.

Each of the doors 21A and 21B is provided with a pair of door arms 25, 25, 26 and 26 projecting from the rear portion thereof, and door rotating shafts 27 and 28 are horizontally provided between the door arms 25, 25, 26 and 26, respectively. It is stuck. And each door rotation shaft 27, 28
1 is provided with a first door interlocking plate 31 and a second door interlocking plate 32 which are fixed to each of the door arms 25 and 26 at a predetermined inclination angle. Here, one first door interlocking plate 31 is formed with a round hole 33, and the other second door interlocking plate 32 is formed with a long hole 34. Doors 21A, 21
B has its door rotation shafts 27 and 28 pivotally supported on the upper ends of the door support plates 35 and 36 as shown in FIG. In this mounted state, both door pivot shafts 27 and 28 are in a positional relationship in which they are close to each other.
In the doors 21A and 21B rotatably attached to the door support plates 35 and 36 in this manner, the first door interlocking plate 31 and the second door interlocking plate 31 are arranged to be symmetrically opposed to each other by shifting their positions forward and backward.
An interlocking pin that connects the door interlocking plates 32 to each other. The interlocking pin 38 has a circular collar-shaped head portion 38b, and the first door interlocking plate 31
When the circular hole 33 of the second door interlocking plate 32 is inserted,
Is inserted and fixed by a washer 39 and a retaining ring 41. As a result, both doors 21A and 21B are linked so that they can be interlocked.

Explaining the opening and closing operation of the door with the above configuration,
When the doors 21A and 21B are closed in FIG. 1, it is in the state shown by the solid line. Now, when one of the doors 21A is lifted with its handle 22a and rotated to the state shown by the chain double-dashed line,
The door interlocking plate 31 turns downward with the door turning shaft 27 as a fulcrum, and the interlocking pin 38 also moves downward while drawing a circular arc locus.
The arcuate downward movement of the interlocking pin 38 is accompanied by sliding interlocking in the elongated hole 34 of the other second door interlocking plate 32, and pushes down the second door interlocking plate 32 with the door pivot shaft 28 as a fulcrum. As a result, the door arm 2 of the other door 21B
6 and 26 are rotated upward, and the other door 21B is also opened.

Since the doors 21A and 21B are opened and closed in this manner, for example, when the door 21B side is the entrance side of the washing rack 17 containing the dishes to be washed, the door 21A which is the exit side after washing is opened. 21B is also opened, so immediately following the removal of the washing rack 17, the next washing rack is immediately opened.
It is possible to put it in the container, and the cleaning is carried out in a streamlined manner to improve efficiency.

When the cleaning rack 17 is accommodated and the door 21A is closed, the other door 21B is also closed in conjunction with each other, and both doors 21A and 21B have a chain double-dashed line without having to close the doors one by one as in the conventional case. This is convenient because the open state can be changed to the closed state of the solid line again. Of course, the other door 21B
Even if is opened / closed, the other door 21A is also opened / closed.

The interlocking pin 38 has a retaining ring 41.
And the washer 39 is removed, and the first door interlocking plate 31,
It can be removed from the second door interlocking plate 32.
Therefore, it is possible to adopt a conventional specification in which the respective doors 21A and 21B are opened and closed separately at the time of removal.

FIG. 3 shows a door interlocking opening / closing mechanism according to another embodiment.

Basically the same as the first embodiment,
In this embodiment, the first door provided on each door 21A, 21B
Both the door interlocking plate 31 and the second door interlocking plate 32 have long holes 4
3,44 are provided.

Then, the interlocking pin 45 is passed through these elongated holes 43 and 44. The doors 21A and 21B are the door rotating shaft 2
Similar to the first embodiment, the reference numerals 7 and 28 are pivotally supported by the door support plate and are rotatably mounted. Here, the interlocking pin 4 passed through the long holes 43 and 44 of the first door interlocking plate 31 and the second door interlocking plate 32.
In order to interlock the left and right doors 21A and 21B with 5, it is necessary to regulate the interlocking pin 45 so that it moves only vertically. As a guide member for this purpose, a holding plate 48 having a vertically elongated guide hole 47 is provided.

Therefore, as shown in FIG. 3, a circular collar-shaped head 4
The interlocking pin 45 having 5b is passed through the guide elongated hole 47 from the rear of the holding plate 48, and the elongated holes 43 and 44 of the first door interlocking plate 31 and the second door interlocking plate 32 are passed through, and the washer 39 and the retainer are prevented from coming off. Secure with ring 41 to prevent it from coming off.

Therefore, also in the case of the second embodiment, from the closed state of the doors 21A and 21B shown in FIG.
When the first door interlocking plate 31 is pivoted downward to open the interlocking pin, the interlocking pin 45 guides the interlocking pin 45.
The vertical movement of the second door interlocking plate 3
2 is rotated downward, and the other door 21B is also interlocked and opened.

In this way, by opening / closing one of the doors 21A and 21B, the other door can be simultaneously opened / closed without difficulty.

In this case as well, if the interlocking pin 45 is pulled out, the doors 21A and 21B of the conventional specifications can be independently opened and closed.

[0027]

As described above, according to the present invention, the doors which are provided facing each other and which are vertically rotated to open and close the cleaning chamber are inclined with respect to the door rotation axis and protrude toward each other. One of the two door interlocking plates has a long hole, and after inserting the interlocking pin into the round hole of the other door interlocking plate, both doors can be opened and closed by a connecting structure that passes through this long hole. Therefore, it is possible to easily perform the work of putting in and out of the washing room of the washing rack, and the work efficiency is improved.

Similarly, both the first and second door interlocking plates may be formed as long holes, and the interlocking pin penetrating the long holes may be connected to the guide long hole so that the interlocking pin moves only in the vertical direction.
The doors can be opened and closed, and both are simple interlocking mechanisms, but the dishwasher can perform its cleaning function fully.

[Brief description of drawings]

FIG. 1 is a side view of a schematic configuration of a dishwasher of the present invention showing a door opening / closing mechanism in a first embodiment, partially broken away.

FIG. 2 is an exploded perspective view of constituent elements showing a main part of the door opening / closing mechanism.

FIG. 3 is an exploded perspective view of constituent elements showing a main part of a door opening / closing mechanism according to a second embodiment.

[Explanation of symbols]

 2 Washing room 17 Washing rack 21A, 21B Door 27, 28 Door rotating shaft 31 First door interlocking plate 32 Second door interlocking plate 33 Round hole 34, 43, 44 Long hole 38, 45 Interlocking pin

Claims (2)

[Claims] 1. A washing chamber provided with an inlet and an outlet of a washing rack so as to face each other; In a dishwasher equipped with a door that opens and closes in one direction, a first door interlocking plate that is provided with one door rotation shaft protruding at a predetermined inclination angle and has a round hole at the tip, and the other A second door interlocking plate that is provided on the door rotation shaft so as to project symmetrically with the first door interlocking plate, and has a long hole formed at its tip, and the second door interlocking plate penetrates through the round hole and the long hole. A door for a dishwasher, comprising: a first and a second door interlocking plate connected to each other; and an interlocking pin that slides in the long hole in conjunction with opening / closing of one door to open / close the other door. Switchgear. 2. A washing chamber provided with an inlet and an outlet of a washing rack opposed to each other, and a door rotation axis provided in the inlet and the outlet, and the door pivot shafts thereof are arranged in close proximity to each other to vertically move the washing rack. In a dishwasher equipped with a door that opens and closes in one direction, the first door is provided so as to be symmetrical and protrudes from each door rotation axis at a predetermined inclination angle, and has a long hole formed at each tip. An interlocking plate and a second door interlocking plate, an interlocking pin that penetrates through the long hole and connects the first door interlocking plate and the second door interlocking plate, respectively, and the other door that interlocks with the opening and closing of the one door. And a holding plate having a guide slot for vertically guiding the interlocking pin so as to open and close.