JPH09122063A - Dishwashing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable temporary use of an automatically door opening mechanism even when a lock mechanism breaks down in a dishwashing apparatus with the automatically door opening mechanism. SOLUTION: A dishwashing apparatus 1 is provided with a washing chamber formed at an upper part of the body 2, a door 17 which is supported on the body 2 free to move vertically to open or close the washing chamber, an energizing member to energize the door 17 in the direction at which the door is pulled up and opened constantly and a lock mechanism 36 to keep the door 17 closed. A keep member 31 is mounted on the side of the body 2 to be engaged with a handle 27 on the side of the door 17 free to load or unload.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher having an automatic door opening mechanism for opening and closing a washing chamber.

[0002]

2. Description of the Related Art A conventional dishwasher of this type has a washing nozzle (washing injection nozzle) at the top and bottom of a washing chamber formed in the upper part of the main body, as disclosed in, for example, Japanese Unexamined Patent Publication No. 6-142028 (A47L15 / 42). Rinse nozzles (rinse injection nozzles) are rotatably arranged, respectively, and are configured to perform cleaning and rinsing of objects to be cleaned such as dishes installed between them.

The cleaning chamber is opened and closed by a box-shaped door supported by the main body so as to be vertically movable, and the door is pulled up by an urging spring and is constantly urged in the opening direction. During the washing and rinsing operation, the door is pulled down and closed against the urging force of the urging spring, and the closed state is held by the lock mechanism. Then, when the cleaning and rinsing operation is completed, the lock mechanism is released, and the door is automatically pulled up by the biasing spring and opened.

[0004]

According to the dishwasher having the automatic opening mechanism, the work of washing the object to be cleaned is facilitated and labor saving is promoted. On the other hand, the lock mechanism is used. If it breaks down, the worker has to pull down and hold the door during the washing and rinsing operation, and it will become unusable, which will cause a serious damage to the business.

Therefore, if an urging spring having a weak spring force is attached from the beginning, the door will not be completely opened when the door is opened, and the operator must lift the door during the loading and unloading of the article to be cleaned. There is a problem that the door cannot be automatically opened because it has to be removed. The present invention has been made to solve the above-mentioned conventional technical problems,
In a dishwasher equipped with an automatic door opening mechanism, it is possible to use the dishwasher temporarily even when the lock mechanism fails.

[0006]

DISCLOSURE OF THE INVENTION The dishwasher of the present invention comprises:
A cleaning chamber formed in the upper part of the main body, a door that is supported movably in the vertical direction with respect to the main body and that opens and closes the cleaning chamber, an urging member that constantly pulls up the door and urges it in the opening direction, and the door closes. A lock mechanism for holding the above state, and a pressing member that is attached to the main body side and that is detachably engaged with the door side is provided.

According to this structure, normally, the door can be automatically opened by the urging force of the urging member, and when the lock mechanism fails, the lock is released and the pressing member attached to the main body side is released. By engaging the member with the door side, the cleaning chamber can be kept closed by the door. Therefore, even if the lock mechanism fails, it can be used immediately.

In addition to the above, the dishwasher of the invention of claim 2 further comprises a handle for transmitting the biasing force of the biasing member to the door, and the handle is located at least on the left and right sides of the door, and
The pressing member is attached to the left side surface or the right side surface of the main body and is detachably engaged with the handle. According to such a configuration, by engaging the holding member with the handle,
Even if the lock mechanism fails, the door can be maintained in the closed state very easily, and since the pressing member is attached to the left side or right side of the main body, a table or the like can be attached to the left side or the right side of the main body or the front side. Even when they are arranged side by side, the pressing members can function without any hindrance.

In particular, since the pressing member is engaged with the handle, it is not necessary to provide the engaging portion of the pressing member on the door side, and it is possible to minimize the increase in the number of parts and the cost increase. .

[0010]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a vertical sectional front view of a dishwasher 1 of the present invention, FIG. 2 is a side view of the dishwasher 1, and FIG. 3 is a dishwasher 1.
FIG. In each figure, the main body 2 of the dishwasher 1
A back plate 11 is provided upright on the rear part of the back plate 11, and a cleaning chamber 3 is defined on the front side of the back plate 11 at the upper part of the main body 2. A box-shaped door 17 opens and closes the upper surface, front surface, and left and right side surfaces of the cleaning chamber 3.

The door 17 is supported by guide members 20 mounted vertically on both sides of the front surface of the back plate 11 so that the rear portions of both sides of the door 17 can be moved up and down, and the cleaning chamber 3 is closed in a lowered state. The front and left and right surfaces of the cleaning chamber 3 are opened in the raised state. A handle 27 is rotatably supported on the upper part of the guide member 20 from a rear end of the guide member 20 at a rotation fulcrum on the front side. The handle 27, which is composed of a front side and both sides, has a substantially U shape as a whole, and is located outside the front surface and the left and right surfaces of the door 17 (the front side is deleted in FIG. 1). A coil spring (not shown) as a biasing member is connected between the rear end of the handle 27 and the base of the back plate 11 and is attached in an expanded state.

On the other hand, a connecting member 28 is provided on both outer sides of the front side of the center of the door 17, and the door 1 is provided at the lower end thereof.
It is rotatably pivoted on 7. The upper end of the connecting member 28 is rotatably connected to the middle of the left and right sides of the handle 27. When the door 17 is closed, the handle 27 is in a state where its front portion is low and inclined, and the connecting member 28 is in a substantially upright state. The restoring force of the coil spring is transmitted to the door 17 via the handle 27 and the connecting member 28, and the restoring force (biasing force) of the coil spring is applied to the door 17 by its own weight in the unlocked state of the lock mechanism 36 described later. However, the value is set so that the rear end of the handle 27 can be pulled down and the door 17 can be pulled up and opened.

That is, the handle 27 and the connecting member 28 are on the door side. The holding member 31 of the present invention is attached to the front side of the left side or the front side of the right side of the main body 2, which is the main body 2 side (or both may be used). The holding member 31 is formed by bending a metal rod or the like, one end of which is rotatably supported by the main body 2 and the other end (tip) of which is formed in a hook shape bent rearward. ing. And
The pressing member 31 has a size such that it can be detachably engaged with both ends of the front side of the handle 27 in the state where the door 17 is closed as shown in FIG.

Reference numeral 36 is the lock mechanism attached to the upper end portion of the back plate 11, and a claw 37 projecting from the upper surface of the door 17 in the lowered state is provided on the upper surface thereof. The pawl 37 is moved back and forth by a solenoid provided inside the lock mechanism 36, and holds the door 17 closed in the state of moving forward (door lock), and raises the door 17 in the state of retracting. Allowed (door unlocked). Also,
The upper surface of the claw 37 is inclined forwardly low, and when the door 17 is lowered, the door 17 comes into contact with the inclined surface, whereby
The claw 37 retracts.

On the other hand, an upper cleaning nozzle 4 having a plurality of cleaning nozzle ports for jetting cleaning water downward is provided above the cleaning chamber 3.
Is rotatably disposed, and an upper rinse nozzle 5 that rotates concentrically with the upper cleaning nozzle 4 is disposed slightly below the upper cleaning nozzle 4. This rinse nozzle 5
Has a plurality of rinse nozzle openings for spraying rinse water downward.

A lower cleaning nozzle 6 having a plurality of cleaning nozzle openings for spraying cleaning water upward is provided in the lower part of the cleaning chamber 3.
Is rotatably arranged, and a lower rinse nozzle 7 having a plurality of rinse nozzle ports for injecting rinse water upward is disposed rotatably concentrically with the lower wash nozzle 6 just above the lower wash nozzle 6. Has been done. On the other hand, the main body 2 is + 80 ℃
Booster tank 1 for storing high-temperature rinse water
5 are arranged side by side. A rinsing pump 16 is provided between the booster tank 15 and the upper and lower rinsing nozzles 5 and 7 for supplying the rinsing water stored in the booster tank 15 to the upper and lower rinsing nozzles 5 and 7 through a rinsing pipe 19. It is set up. In the booster tank 15, an overflow pipe (not shown) that regulates the predetermined water level is erected. Further, the rinse water is supplied (hot water supply) to the booster tank 15 from hot water supply means such as an instantaneous water heater.

Below the cleaning chamber 3, a cleaning tank 12 which is separated from the cleaning chamber 3 by a filter (not shown) is provided. An overflow pipe 1 is provided in the cleaning tank 12.
3 is provided upright and opens in the cleaning tank 12 at a position where the cleaning water surface of the cleaning tank 12 is regulated to a predetermined water level. In addition, the detergent stored in the cleaning tank 12 is mixed between the upper and lower cleaning nozzles 4 and 6 and the cleaning tank 12.
A cleaning pump 14 is provided for circulating the cleaning water of about 60 ° C. to the upper and lower cleaning nozzles 4 and 6 through the cleaning pipe 18.

Next, the operation of the dishwasher 1 of the present invention having the above configuration will be described. A table 32 for moving the object to be cleaned is provided side by side on the left side, the right side, or the front side of the main body 2 of the dishwasher 1. If the table 32 is provided on the left side, The member 31 is attached to the front part of the right side surface of the main body 2, and when the table 32 is juxtaposed to the right side, the pressing member 31 is attached to the front part of the left side surface of the main body 2.

First, the claw 37 of the lock mechanism 36 is retracted, whereby the door 17 is pulled upward by the restoring force of the coil spring and opened, as described above.
In this state, an object to be cleaned (not shown) made of dishes such as dishes is stored in the cleaning chamber 3 between the upper and lower rinse nozzles 5 and 7 (upper and lower cleaning nozzles 4 and 6). Then, while holding the front side of the handle 27, the coil spring 23 is extended, the door 17 is pulled down and closed, and the claw 37 of the lock mechanism 36 is moved forward by a switch operation or the like to lock the door 17, and then the operation switch is turned on. To do. When the operation switch is turned on, a control device (not shown) starts the operation of the dishwasher 1. When the operation is started, rinse water is supplied to the booster tank 15 from the hot water supply means, and the rinse pump 16 supplies the rinse water in the booster tank 15 to the upper and lower rinse nozzles 5 and 7 through the rinse pipe 19. Then, after this, it is stored in the cleaning tank 12.

Next, the washing pump 14 is operated to feed the washing water in the washing tank 12 to the upper and lower washing nozzles 4 and 6 through the washing pipe 18 and into the washing chamber 3 through the respective washing nozzle ports. The object to be cleaned in the cleaning chamber 3 is cleaned by spraying.
After a predetermined cleaning time, this time, the rinse pump 16
Is operated to feed the rinse water in the booster tank 15 to the upper and lower rinse nozzles 5 and 7 through the rinse pipe 19,
The objects to be cleaned in the cleaning chamber 3 are rinsed by spraying from the respective rinse nozzles into the cleaning chamber 3.

After such a rinsing operation has been executed for a predetermined time, the control device stops the operation and at the same time retracts the pawl 37 of the lock mechanism 36 to release the lock. As a result, the door 17 is pulled upward by the restoring force of the coil spring and opened. With such an automatic opening mechanism, the user can take out the object to be cleaned that has been cleaned as it is from the cleaning chamber 3 and move it to the table 32.
Significant labor saving can be achieved.

When the lock mechanism 36 fails and cannot operate, the claw 37 is left in the retracted state (unlocked), and the door 17 is pulled down and closed as shown in FIG. As described above, the pressing member 31 is raised, and its tip is engaged with the front side portion of the handle 27. As a result, the rise of the door 17 is prevented, so that the door 17 is maintained in the state in which the cleaning chamber 3 is closed even if the user does not press the door 17. Further, when the pressing member 31 is removed from the handle 27, the door 17 is opened by the coil spring, so that even if the lock mechanism 36 fails, the dishwasher 1 is temporarily used until repaired by a service person. You will be able to.

The shape of the pressing member 31 and the like shown in the embodiments is not limited to this, and can be variously modified without departing from the spirit of the present invention.

[0024]

As described in detail above, according to the present invention, normally, the door can be automatically opened by the urging force of the urging member, and the lock is released when the lock mechanism fails. By engaging the holding member attached to the main body side with the door side, it becomes possible to maintain the cleaning chamber closed by the door. Therefore, even if the lock mechanism fails, it can be used immediately.

According to the second aspect of the present invention, by engaging the holding member with the handle, the door can be maintained in the closed state extremely easily even when the lock mechanism fails, and the holding member is Since it is attached to the left side surface or the right side surface of the main body, even when a table or the like is installed in parallel on the left side, the right side, or the front side of the main body, the pressing member can function without any hindrance.

In particular, since the pressing member is engaged with the handle, it is not necessary to provide the engaging portion of the pressing member on the door side, and it is possible to minimize the increase in the number of parts and the cost increase. It is a thing.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of a dishwasher of the present invention.

FIG. 2 is a side view of the dishwasher of the present invention.

FIG. 3 is a plan view of the dishwasher of the present invention.

[Explanation of symbols]

 1 Dishwasher 3 Washing Room 4 Upper Washing Nozzle 5 Upper Rinse Nozzle 6 Lower Washing Nozzle 7 Lower Rinse Nozzle 12 Washing Tank 15 Booster Tank 17 Door 27 Handle 31 Holding Member 36 Locking Mechanism

Claims (2)

[Claims] 1. A cleaning chamber formed in the upper part of the main body, a door that is supported so as to be vertically movable with respect to the main body, and that opens and closes the cleaning chamber, and a door that constantly pulls up the door to urge it in the opening direction. In a dishwasher including a biasing member and a lock mechanism that holds the door closed, a holding member that is attached to the main body side and is detachably engaged with the door side is provided. Dishwasher to do. 2. A handle for transmitting the urging force of the urging member to the door, wherein the handle is located at least on the left and right sides of the door, and the holding member is attached to the left side surface or the right side surface of the main body and is attached to or detached from the handle. The dishwasher of claim 1, wherein the dishwasher is freely engageable.