JPH10211154A - Washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability of housing and outputting of a control box at a washer housing the control box in a housing space between the top plate of an inner box and a top wall over it. SOLUTION: A dish washer 1 which washes matters to be washed such as dishes within a washing room 3 constitutes the washing room 3 inside and is provided with the inner box opening a front side, a top table 7 fixed to the upper side of this inner box 2, the housing space 47 constituted within this housing space 47 constituted between this top table 7 and the top plate 2A of the inner box 2 and the control box 48 arranged within the space 47, and the top plate 2A of the inner box 2 is inclined by lowering forward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for washing objects such as tableware in a washing room.

[0002]

2. Description of the Related Art Conventionally, automatic dishwashers installed in hotels, restaurants, cafeterias, and the like have been used, for example, in Japan.
As shown in JP-A-16658 (A47L15 / 42), a washing nozzle and a rinsing nozzle are arranged above and below a washing chamber, and in a washing process, washing water stored in a washing tank is supplied to the washing nozzle by a washing pump. In addition to washing the tableware stored in the washing room and cleaning the dirt attached to the tableware, in the subsequent rinsing step, the rinse water is fed from the booster tank storing the rinse water to the rinse nozzle by the rinse pump and sprayed. As a result, a method of rinsing washing water attached to tableware is adopted.

The washing water injected from the washing nozzle is collected in the washing tank and is used repeatedly. Rinsing water also flows into the washing tank. The structure was more drainable.

Further, in a dishwasher of an under counter type having a stainless steel work table called a top table as a top wall, a washing room is formed in a stainless steel inner box which opens forward, The washing chamber is structured so as to be openably and closably closed by a door which is opened by rotating forward and downward. In addition, a machine room is formed below the washing room, and the above-mentioned washing pump, rinsing pump, or electrical box containing a relay or the like is disposed in the machine room.

On the other hand, a control box containing a control board and the like is arranged between a top plate of an inner box and a top table (top wall), and a control panel for operation is provided in front of the control box. .

[0006]

The under-counter dishwasher needs to have the same dimensions as other kitchen appliances (such as an under-counter commercial refrigerator) arranged side by side. The legs must also have a predetermined height for convenience in cleaning.

On the other hand, tableware is usually stored in a washing room in a state of being placed on a rack or the like. Therefore, the workability is better if the front opening of the washing room is as wide as possible.
To achieve this, the dimensions of the storage space and the machine room of the control box located above and below this opening must be reduced. Therefore, there arises a problem that it is difficult to take out the control box from the storage space at the time of maintenance of the control board.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem, and has a control device stored in a storage space between a top plate of an inner box and a top wall above the inner box. The purpose of the present invention is to improve the delivery workability.

[0009]

A washing machine according to the present invention is for washing an object to be washed such as tableware in a washing room. The washing machine comprises a washing room therein, and an inner box which opens forward. A top wall attached to the upper side of the inner box, a storage space configured between the top wall and the top plate of the inner box, and a control box disposed in the storage space, The top plate is inclined forward and low.

According to the present invention, a washing chamber is formed inside,
An inner box opening forward, a top wall attached to the upper side of the inner box, a storage space formed between the top wall and a top plate of the inner box, and a storage space disposed in the storage space. In the washing machine equipped with a control box, the top of the inner box is inclined forward and low, so that even when the storage space space is tight, it is located between the front of the top wall and the front of the inner box top. The size of the front opening of the storage space can be secured.

Therefore, even when the operation section at the front of the control box is located on the front side of the front plate of the inner box and the rear section has entered the inside of the ceiling wall, the control box is moved forward during maintenance or the like. The workability can be significantly improved. In addition, since the top plate of the inner box is inclined forward and low, the washing water attached to the top plate does not stagnate on the lower surface of the top plate and moves quickly in the forward opening direction along the inclination. . Therefore, it is possible to avoid so-called drooping in which the washing water drops from the top plate to the object to be washed after the rinsing.

Further, the washing machine according to the third aspect of the present invention is such that a gutter portion which is opened upward and is inclined low sideways is formed below the front end of the top plate of the inner box.

According to the third aspect of the present invention, in addition to the above, a gutter portion is formed below the front end of the top plate of the inner box so as to open upward and incline downwardly to the side. The washing water and the rinsing water that have moved forward along the slope can be collected by the gutter, and can be smoothly flowed down. Therefore, the above-mentioned sagging can be more reliably prevented.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a dishwasher 1 according to an embodiment of the present invention.
2 is a front view of the dishwasher 1, FIG. 3 is a vertical sectional side view of the dishwasher 1, and FIG. 4 is another schematic vertical side view of the dishwasher 1, respectively.

The dishwasher 1 of the embodiment is a so-called under-counter type automatic dishwasher installed in a kitchen such as a hotel, a restaurant, a cafeteria, and the like, and has a washing room in a stainless steel inner box 2 opening forward. A machine room 4 is formed below the inner box 2. Angle members 6, 6 extending vertically are attached to both sides of the front end of the inner box 2, and extend to the machine room 4. A stainless steel ceiling is provided above the top plate 2 </ b> A of the inner box 2 at intervals. A top table (work table) 7 as a wall, and a stainless steel exterior plate 8 on the outside of the back plate 2B and the left and right side plates 2C and 2C.
・ ・ Is attached.

The front ends of the left and right exterior plates 8 are connected to the outer edges of the angle members 6, and the lower portions are located on the left and right sides of the machine room 4. Further, the rear exterior plate 8 is also located behind the machine room 4, and the upper ends of the exterior plates 8 are connected to the outer edge of the top table 7, and the tableware is formed by these members including the inner box 2. The main body of the washing machine 1 is configured.

The bottom plate 2D of the inner box 2 is formed stepwise lower from the front part, and the rear part on the left side thereof is continuous with the washing tank 9 opened on the upper surface. That is, the washing tank 9 is opened upward below the washing chamber 3, and the whole is located at the left rear part in the machine room 4.

Upper and lower cleaning nozzles 11, 12 and upper and lower rinsing nozzles 13, 14 are rotatably mounted above and below the cleaning chamber 3, respectively. 16 is the washing room 3
Is a door for opening and closing the front opening of the angle members 6 and 6 at the lower right and left sides thereof by hinges 17 and 17 so as to be rotatable.

Notches 18 are formed in front of the angle members 6, 6 above the hinges 17, 17, respectively. The notches 18, 18 are fixed to the lower left and right inner surfaces of the door 17 and extend rearward. The arc-shaped steel plate door stays 19, 19 are inserted so as to be freely inserted and removed (in FIG. 2, other members are omitted for easy understanding).

At the rear ends of the door stays 19, abutting portions 19A projecting upward in the shape of a crank are formed, respectively, while the inner surfaces of the angle members 6, 6 above the upper edges of the notches 18, 18, respectively. , Rubber cushion members 21 are respectively attached. When the door 16 is opened and rotated forward and downward, as shown in each figure, when the door 16 becomes substantially horizontal, each contact portion 19A of the door stays 19, 19,
19A abuts the cushion members 21, 21, and the door 16 stops in that state.

A rectangular through hole 22 is formed in the rear end of the left door stay 19 located inside the angle member 6 when viewed from the front. A permanent magnet 23 is housed in the through hole 22, and one side of the through hole 22 is closed by a holding plate 24 spot-welded to the door stay 19, and the other side is screwed to the door stay 19. The cover 26 is closed.

A reed switch 27 is mounted outside the left side plate 2C of the inner box 2. When the door 16 is closed, the magnet 23 approaches the reed switch 27, and when the door 16 is opened, the magnet 23 is opened. Move away from the reed switch 27. Thus, the contact of the reed switch 27 is opened and closed, so that the opening and closing of the door 16 is detected.

As described above, the through hole 22 is formed in the door stay 19.
And the magnet 23 is housed and buried in the through hole 22, so that the holding plate 24, the magnet 23 and the cover 2 are formed.
The overall width dimension including 6 is reduced. Therefore, even if the width dimension of the angle member 6 and the opening dimension of the notch 18 are reduced, the magnet 23 portion of the door stay 19 can be inserted into the notch 18 without any trouble (see FIGS. 5 and 7). This contributes to the expansion of the width of the front opening of the cleaning chamber 3 in the lateral direction.
m) It can be secured.

On the other hand, the inner box 2 which borders the front opening of the cleaning chamber 3
The front plate 2E has water sealing walls 31, 3 on its upper side and left and right sides.
2 are spaced from each other and are continuously provided. On the other hand, the water sealing walls 33 and 34 are also provided at the upper part of the inner surface of the door 16 and at the left and right with a space therebetween and continuously projecting therefrom. The water sealing walls 33 and 34 enter the inside of each of the water sealing walls 31 and 32 on the inner box 2 side in a state where the door 16 closes the opening of the cleaning chamber 3, and water seals around the openings. ing. still,
The door stays 19 are located on both sides of the outer water sealing wall 34, respectively.

Further, catchers 37, 37 are attached to the left and right front sides of the upper side of the front plate 2E of the inner box 2, and the door 16
Latches 38, 38 are mounted on both sides of the upper end of the inner surface of the inner surface of the outer side of the water sealing wall 34. Then, with the door 16 closed, the latches 38, 38 are detachably engaged with the catchers 37, 37, whereby the door 1
6 is maintained in a closed state.

Here, each of the catchers 37, 37 is provided with a packing 42 which is in close contact with the back surface of the front plate 2E with respect to the catcher fixing plate 41 located on the back side of the upper side of the front plate 2E of the inner box 2.
Are fixed together by a screw (screw) 43. In this case, a positioning screw (screw) 44 is provided above each of the catchers 37, 37, and penetrates through the front plate 2E and is screwed to the catcher fixing plate 41.

First, these screws 43, 43 and 44 are loosely screwed into the catcher fixing plate 41 and placed.
In this state, the door 16 is closed, and each latch 38, 38 is engaged with each catcher 37, 37. Next, if the screw 44 is tightened in this state, the positions of the catchers 37, 37 and the latches 38, 38 match, and the catcher fixing plate 41
And the positioning of each catcher 37, 37 is performed.
Next, the door 16 is opened again, and finally the screws 43 are tightened.

In this way, each catcher 37, 37
And the respective latches 38, 38 can be easily positioned, and thereafter the door 16 can be opened and closed without any trouble.

The upper end of the catcher fixing plate 41 is located immediately below the top plate 2A of the inner box 2, and a gutter portion 41B is formed on the back surface thereof, which is inclined low left and right from the center and opens upward. The gutter portion 41B may be horizontal, but is desirably inclined as in the embodiment. In addition, packing 4
The lower surface of 2 is also an inclined surface that becomes lower from the center toward the left and right. Further, the top plate 2A is inclined forward and low. A storage space 47 is formed between the inclined portion and the upper top table 7.

The storage space 47 is opened forward between the front plate 2E of the inner box 2 and the front of the top table 7, and a control box 48 is stored in the storage space 47 as shown in FIG. . This control box 4
A control board of the dishwasher 1 is accommodated in 8 and has a vertical front part 48A in which an operation panel (operation part) of a serviceman is located on the front side and extends rearward from the upper part. The entirety of the rear portion 48B in which the substrate is accommodated has an L-shaped cross section.

Then, the rear portion 48B of the control box 48 is inserted to the back of the storage space 47, enters the inside of the top table 7 as shown in FIG.
8A is located on the front side of the front plate 2E, and as shown in FIG.
Are fixed to the upper surface of the top plate 2A from the front with screws (not shown) while floating from the top plate 2A. Also, this front part 48
A control panel 51 is detachably attached to the front side of A (removed except in FIG. 3), and operation switches for the user are arranged on the front surface of the control panel 51.

Here, when performing maintenance on the control board and the like, first, the control panel 51 is removed,
Next, remove the fixing screw from the front. Next, as shown by the arrow in FIG. 9, the control box 48 is pulled out while lowering it. In this case, since the top plate 2A of the inner box 2 is inclined forward and low, the width of the front opening of the washing chamber 3 in the vertical direction is expanded, and even in a situation where the space of the storage space 47 is compressed, the top of the washing box 3 is closed. The front opening dimension (vertical direction) of the storage space 47 located between the front portion of the table 7 and the front portion (front plate 2E) of the top plate 2A of the inner box 2 can be secured. Therefore, even during maintenance, the control box 48 can be easily taken out forward as described above, and workability is remarkably improved.

On the other hand, rack rails 53, 53 are attached to the side plates 2C, 2C located on the left and right sides of the lower edge of the front opening of the washing chamber 3 as shown in FIGS. The rack on which the tableware is placed is the rack rail 5
3 and 53 are slidably mounted from the front opening.

An overflow pipe 54 is detachably provided in the washing tank 9, and the upper end thereof is opened to the upper part in the washing tank 9, and the lower end of the overflow pipe 54 is a bottom plate (unit base) of the machine room 4 described later. ) Connected to a drain pipe (not shown) outside 4A. A pump filter 57 for preventing foreign matter from flowing into a cleaning pump 56, which will be described later, is attached to the inside of the front surface of the cleaning tank 9 so as to be able to be pulled out upward.

A notch 53A is formed in the rack rail 53 corresponding to the upper part of the pump filter 57, and the pump filter 57 can be drawn upward through the notch 53A.

FIG.
Is detachably attached (removed in FIGS. 10 and 11). A plurality of small holes 62... Are formed on the bottom surface of the tank filter 61, thereby preventing large dust from entering the cleaning tank 9 while allowing the cleaning water to flow into the cleaning tank 9.

Further, a cover 6 is provided on the rear portion of the bottom surface of the tank filter 61 corresponding to the overflow pipe 54.
3 is raised and formed integrally with the tank filter 61. The cover 63 includes a rectangular upper surface 63A and a peripheral side surface 63B.
3). The upper surface 63A of the cover 63 and the peripheral side surface 63B
.. each having a through hole 6 for venting air at the corners formed by
.. Are formed.

Next, the washing pump 56, the booster tank 66, the rinsing pump 67, and the electrical box 68 are installed in the machine room 4. Cleaning pump 56
The suction side 56S is fixed to the front surface of the washing tank 9 and communicates with the inside thereof. The pump filter 57 is attached to the suction port portion.
The upper discharge side 56D of the cleaning pump 56 is fixed in close contact with the lower surface of the bottom plate 2D, and communicates with the upper and lower cleaning nozzles 11 and 12 via a passage (not shown) in the pipe 70.

Tap water is introduced into the booster tank 66 from a pipe (not shown). Rinsing water (hot water) at a predetermined temperature is stored by a heater (not shown). The sides are in communication. The discharge side of the rinsing pump 67 is connected to the upper and lower rinsing nozzles 13 and 14 via a passage (not shown) in the pipe 70.

The booster tank 66 is mounted on the bottom plate 4A at the right end in the machine room 4, and the bottom plate 2D immediately above the booster tank 66 is inclined rightward and high (indicated by P in FIG. 2). . Thereby, the opening frontage of the cleaning room 3 is expanded in the vertical direction, and even if the height of the machine room 4 is compressed, the booster tank 66 having a predetermined capacity can be installed without any trouble. With the above configuration, the frontage dimension of the cleaning chamber 3 can be secured to about 310 mm in the vertical direction.

At the four corners of the bottom plate 4A, there are pedestals 69.
Is attached. The height of the foot 69 is 80
mm, thereby ensuring cleaning workability under the bottom plate 4A. Further, the front of the machine room 4 is closed by a machine room panel 71 that can be opened and closed.

On the other hand, the cleaning pump 56 is disposed on the left side of the machine room 4 and immediately before the cleaning tank 9, and the lower surface thereof is floating from the bottom plate 4A. The electrical box 68 is arranged in the machine room 4 immediately before the motor 56M of the cleaning pump 56. The electrical component box 68 is open at the front side and houses a relay and a terminal plate (not shown) therein. A plurality of through-holes 73 are formed in the back wall 68A. .

Further, a duct member 74 having a U-shaped cross section is attached to the rear surface of the back wall 68A.
A vertical passage 76 that opens up and down is formed in 4.
The through holes 73 are connected to the ventilation path 76. Further, a heat insulating material 77 is attached to the rear surface of the duct member 74, that is, the surface on the motor 56M side.

The electrical component box 68 is floated above the bottom plate 4A with a small gap between the main body (the exterior plate 8, the angle member 6).
Alternatively, a plurality of ventilation holes 7 are provided in the bottom plate 4A below the electrical equipment box 68.
8 ... are drilled.

When power is supplied to the dishwasher 1 with the above configuration, first, the rinse pump 67 is operated, and the rinse water (hot water) stored in the booster tank 66 is injected from the vertical rinse nozzles 13 and 14. . The injected rinse water drops on the bottom plate 4D, flows into the cleaning tank 9 soon, and is stored as the cleaning water. The washing tank 9
Also, a heater (not shown) is provided, the washing water is kept at a predetermined temperature, and the detergent is injected by a pipe (not shown).

The hot water supply operation is completed and a standby state is established.
Next, the rack on which the tableware as the object to be washed is placed is inserted along the rack rail 53 and stored in the washing room 3. Then, when a predetermined start switch is operated, the cleaning process is started. In this cleaning step, the cleaning pump 56 is operated, and the cleaning water stored in the cleaning tank 9 is jetted from the upper and lower cleaning nozzles 11 and 12 toward the dishes. As a result, the dishes are cleaned. The injected cleaning water is dropped on the bottom plate 2D, collected in the cleaning tank 9, and reused.

This cleaning step is performed for a predetermined period, and then the procedure shifts to a rinsing step. In this rinsing stroke, the rinsing pump 67 is operated as described above, and the upper and lower rinsing nozzles 13,
From 14 rinsing water in the booster tank 66 is sprayed toward the dishes. Thus, the washing water attached to the tableware is rinsed, and the rinsing water flows into the washing tank 9 in the same manner.

Here, as described above, the booster tank 66
Since the upper bottom plate 2D is higher to the right, that is, inclined lower in the direction of the washing tank 9, the washing water and the rinsing water dropped on the bottom plate 2D smoothly move toward the washing tank 9 (the left direction in FIG. 2).
To flow to. The water level in the washing tank 9 rises due to the inflow of the rinsing water, but flows out of the overflow pipe 54 when it becomes higher than the overflow pipe 54, so that the water level W is regulated at the upper end of the overflow pipe 54.

Although the washing water contains dirt and debris dropped from the tableware, a cover 63 is located around the overflow pipe 54, and its upper surface 63A and peripheral side surface 63A are provided.
.. Are prevented from entering the overflow pipe 54.

In particular, as described above, the upper surface 63A of the cover 63
And through holes 64 at the corners of the peripheral side surfaces 63B
Since the holes are formed, it is possible to prevent the through hole 64 from being submerged under the water surface W while securing the opening area of the through hole 64. As a result, air can be reliably removed from the overflow pipe 54.

The washing water and the rinsing water sprayed from each of the nozzles 11, 12, 13, and 14 adhere to the top plate 2A as water droplets. Moves smoothly toward the front opening without stagnation. Then, it flows into the gutter portion 41B of the catcher fixing plate 41, flows down right and left, and finally flows down along the side plate 2C of the inner box 2. In addition, water droplets attached to the packing 42 also flow down the left and right along the inclination of the lower surface.
This prevents so-called drooping in which washing water or rinsing water drops from the top plate 2A onto the tableware after rinsing.

When the cleaning pump 56 is operated, heat is generated from the motor 56M.
Since the heat insulating material 77 and the ventilation path 76 are interposed between the motor 56M and the motor 56M, such heat generation is shut off, and the heat is hardly transmitted to the electrical box 68. Further, the relays and the like in the electrical box 68 also generate heat, but the electrical box 68 floats from the bottom plate 4A, and the ventilation holes 78 are formed thereunder. The outside air enters the ventilation passage 76, flows into the electrical equipment box 68 through the lower through-hole 73, circulates, and then passes through the upper through-hole 73 again to the ventilation passage 7.
Then, it flows out to 6 and is exhausted.

As a result, the temperature rise in the electrical component box 68 can be kept low, and failures of components such as relays can be avoided or suppressed beforehand, so that a longer life can be achieved.

[0054]

As described above in detail, according to the present invention, a cleaning chamber is formed therein, and an inner box that opens forward, a top wall attached to the upper side of the inner box, In a washing machine including a storage space configured between a top plate of a box and a control box disposed in the storage space,
Since the top plate of the inner box is tilted low forward, the front opening dimension of the storage space located between the front of the top wall and the front of the inner box top plate is ensured even when the storage space space is squeezed. Will be able to do it.

Therefore, even when the operation unit at the front of the control box is located on the front side of the front plate of the inner box and the rear part has entered the inside of the top wall, the control box is not used during maintenance. It can be easily taken out frontward, and workability is remarkably improved. Also,
As the top plate of the inner box is inclined forward and low, the washing water and rinsing water attached to the top plate move quickly along the inclination in the forward opening direction without stagnating on the bottom surface of the top plate. Become. Therefore, it is possible to prevent any so-called back water from falling from the top plate to the object to be cleaned after rinsing.

According to the third aspect of the present invention, in addition to the above, a gutter portion is formed below the front end of the top plate of the inner box so as to open upward and incline downwardly to the side. The washing water and the rinsing water that have moved forward along the slope can be collected by the gutter, and can be smoothly flowed down. Therefore, the above-mentioned sagging can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a dishwasher according to an embodiment of the present invention.

FIG. 2 is a front view of the dishwasher.

FIG. 3 is a vertical sectional side view of the dishwasher.

FIG. 4 is another schematic longitudinal side view of the dishwasher.

FIG. 5 is a front view of a cutout portion of an angle material of the dishwasher.

FIG. 6 is an enlarged sectional view of a door stay portion of the dishwasher.

FIG. 7 is a sectional view taken along line AA of FIG. 6;

FIG. 8 is an enlarged vertical sectional side view of a catcher portion of the dishwasher.

FIG. 9 is a diagram illustrating a procedure for taking out a control box.

FIG. 10 is a plan view of a washing room of the dishwasher.

FIG. 11 is a vertical sectional front view of a washing room of the dishwasher.

FIG. 12 is a perspective view of a tank filter of the dishwasher.

FIG. 13 is a vertical sectional front view of a tank filter portion of the dishwasher.

FIG. 14 is a perspective view of an electrical box part of the dishwasher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dishwasher 2 Inner box 2A Top plate 3 Washing room 7 Top table (top wall) 41B Gutter 47 Storage space 48 Control box

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masaaki Kobayashi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Eiji Saito 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A washing machine for washing an object to be washed such as tableware in a washing room, wherein the washing room is formed therein, and an inner box that opens forward, and a top wall attached above the inner box. A storage space formed between the top wall and the top plate of the inner box, and a control box disposed in the storage space, wherein the top plate of the inner box is inclined forward and low. A washing machine characterized in that: 2. The control box has an operation section at the front, and the operation section is located on the front side of the front plate of the inner box.
2. The washing machine according to claim 1, wherein a rear portion of the control box extends into the ceiling wall. 3. The washing machine according to claim 1, wherein a gutter portion is formed below the front end of the top plate of the inner box so as to be open upward and to incline to a lower side.