JP3109513B2 - dishwasher - Google Patents

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 dishes and the like by spraying washing water.

[0002]

2. Description of the Related Art Conventionally, this type of dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described.

[0003] As shown in the figure, a washing tank 1 comprises a tableware basket 2.
And a washing pump 4 for supplying washing water to a washing nozzle 3 arranged below the tableware basket 2. A filter 5 for collecting residual vegetables (contaminants adhering to tableware and the like is referred to as residual vegetables) is provided below the washing tank 1.

In the dishwasher configured as described above, a detergent is put into the washing tank 1 and washing water at the bottom of the washing tank 1 is jetted from the washing nozzle 3 through the filter 5 by the washing pump 4. Garbage on tableware is washed off. The washing water containing the residual vegetables is filtered by the filter 5, circulated to the washing pump 4, and is repeatedly injected from the washing nozzle 3.

[0005]

Generally, the inside of a washing tub of a dishwasher has a shape in which contaminants hardly remain in order to give a sense of cleanliness. When a plurality of cleaning nozzles are provided, a branch pipe is provided outside the cleaning tank to branch the cleaning water supplied from the cleaning pump, and the branch is connected from the cleaning pump to the branch pipe and from the branch pipe to the plurality of cleaning nozzles. Uses packing such as rubber hoses and O-rings.

In this case, as the number of nozzles increases, the number of piping members and seal members also increases, so that extra space is required outside the cleaning tank, which increases the cost of parts and also allows water leakage. However, there is a problem that the number of connection parts having a possibility increases.

Further, even when the branch pipe is provided inside the cleaning tank, it is necessary to completely seal the discharge path including the branch pipe without reducing the discharge pressure from the cleaning pump.
Since a sealant and a large number of fastening parts are required, many manufacturing steps are required, and there is a problem that the cost is increased.

Further, since the pipe for discharging the liquid such as washing water from the washing tank to the outside of the machine is provided outside the washing tank, a space is required outside the washing tank and the product can be made compact. Had the problem of hindering

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to reduce the number of piping members such as hoses and the parts required for mounting the piping members, and to make the entire product compact.

[0010]

According to the present invention, in order to achieve the above object, the bottom component of the cleaning tank is made of resin, and the bottom component is integrally formed with a concave portion through which a liquid such as cleaning water is conveyed. The cover is integrally welded to the recess.

As a result, it is possible to reduce the number of piping members such as hoses and parts required for mounting the piping members.
The whole product can be made compact.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a metal cleaning tank body having a resin bottom component.
Equipped with a washing tank, and arranged in the washing tank to spray washing water.
Cleaning nozzle and transports liquid such as cleaning water to the cleaning nozzle.
Comprising a cleaning pump, wherein the bottom component of the cleaning tank ,
Since a concave portion through which a liquid such as cleaning water is conveyed is integrally formed, and a cover body is integrally welded to the concave portion, it is possible to reduce a piping member such as a hose and components required for mounting the piping member. And the whole product can be made compact.

According to a second aspect of the present invention, in the first aspect of the present invention, the cleaning pump is mounted on the bottom member.
Give are as hereinbefore, the discharge pressure from the wash pump can be supplied to the cleaning nozzle without attenuation, further,
It is possible to reduce parts such as piping members such as hoses required for connection between the plurality of cleaning nozzles and sealing members.

According to a third aspect of the present invention, there is provided the method according to the first or second aspect, wherein the wastewater for discharging washing water or the like is discharged.
A pump is attached to the bottom component, and the bottom component is integrally formed with a recess for discharging a liquid such as washing water outside the machine,
The drain is formed by integrally welding the cover to this recess
The space required for a piping member such as a hose connected to a drain pump can be reduced, and the product can be made compact.

According to a fourth aspect of the present invention, in the third aspect of the present invention, a part of the drainage path is provided at a position higher than the washing water level, and another component such as a water sealing valve is used. Even if it is not provided, it is possible to prevent liquid such as washing water from leaking out of the machine from the drainage path during operation.

[0016] The invention according to claim 5 provides the above-mentioned claims 1 to
In the invention described in Item 4, a branch pipe formed integrally with the cover body is provided, and an outlet of the branch pipe is welded to a conduction path communicating with the outside of the bottom component member. It can be easily and effectively used for cleaning water level detecting means outside the cleaning tank without the need for a piping member.

[0017]

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

(Embodiment 1) As shown in FIG.
Consists of a cleaning tank body 7 made of stainless steel and a bottom component 8 made of resin, has an opening in the front, and the opening is opened and closed by a door 9,
A plurality of cleaning nozzles 10 for injecting cleaning water are rotatably disposed therein. The tableware basket 11 stores the tableware 12 and is arranged in the washing tank 6.

The bottom component 8 integrally forms a first recess (recess) 14 for transporting cleaning water from the cleaning pump 13 to the plurality of cleaning nozzles 10. The first cover body (cover body) 15 is welded to the first recess 14 so as to cover the first recess 14, and forms a cleaning water transport path 16 together with the first recess 14. In this first cover body 15,
A plurality of nozzle bearings 17 that support the cleaning nozzle 10 are provided.

The first cover body 15 is welded to the first concave portion 14 to form a cleaning water transport path 16 in a state of the bottom component member 8 alone, and then the bottom structural member 8 is cleaned. By joining the tank body 7, the welding operation can be facilitated, and the box-shaped washing tank 6 having the washing water transport path 16 can be formed.

The washing pump 13 sucks washing water from the washing tank 6 through a filter 18 for collecting residual vegetables, and a washing water transport path 16 formed by the first recess 14 and the first cover body 15. Through the plurality of cleaning nozzles 10.

In the above configuration, the first recess 14 and the first
Cleaning water transport path 16 formed by the cover body 15 of FIG.
Is sufficiently sealed by welding, so that there is no gap that attenuates the discharge pressure from the cleaning pump 13. Therefore, it is necessary to supply the plurality of cleaning nozzles 10 without attenuating the discharge pressure from the cleaning pump 13. And the ability of the cleaning pump 13 can be fully utilized.

Further, even when a plurality of cleaning nozzles 10 are provided, there is no need to provide a branch pipe for branching the cleaning water supplied from the cleaning pump 13, and it is necessary for fastening parts and fitting parts of piping. Space can be eliminated. Therefore, it is possible to reduce the number of piping members such as hoses and the parts necessary for mounting the piping members, and to make the entire product compact.

(Embodiment 2) As shown in FIG.
a is a cleaning tank main body 7a made of stainless steel;
The bottom component 8a is integrally formed with a second recess (recess) 20 that conveys the washing water from the drain pump 19. The second concave portion 20 is provided with a drain pipe portion 21 at a position higher than the washing water level in the middle.

The second cover body (cover body) 22 is welded to the second recess 20 so as to cover the drain pipe 21 and the second recess 20 so as to cover the second recess 20.
Together, they constitute a drain passage 23. Drainage pump 19
The washing water is sucked from the washing tank 6a through a filter 24 for collecting residual vegetables, and is communicated to the outside of the machine through a drain pipe section 21 through a drain path 23. Other configurations are the same as those in the first embodiment.

In the above configuration, the second concave portion 20 and the second
Since the drainage path 23 formed by the cover body 22 is formed in the cleaning tank 26a, the space required for piping members such as hoses for draining the cleaning water from the cleaning tank 6a to the outside can be reduced. And the product can be made compact.

Also, since the inlet of the drain pipe section 21 is located at a position higher than the washing water level, the washing water is drained during the washing.
3 can be prevented from leaking out of the machine.

(Embodiment 3) As shown in FIG. 3, the bottom constituting member 8b constitutes a washing tank together with a washing tank body (not shown), and is made of resin, and a drain pump (not shown). Concave portion (concave portion) 20 for transporting washing water from
a is formed integrally. The second cover body 22a is
Is formed by welding so as to cover the concave portion 20a of the second cover member 22a, and the branch pipe 25 is formed integrally with the second cover body 22a, and the outlet portion 26 of the branch pipe 25 is connected to the bottom member 8b. Welded together.

The branch pipe 25 has an L-shape, and has a flow path adjusting portion 27 for reducing the cross-sectional area of the path and adjusting the flow rate of the washing water to the branch pipe 25 on the way. And The bottom component 8b is connected to the outlet 2 of the branch pipe 25.
The welded portion 28 to be welded 6 has a substantially 45 ° angle which is the same as the outlet portion 26, and a conductive path 29 communicating with the outside of the bottom member 8 b is integrally formed inside the welded portion 28.

A float switch 30 for detecting a washing water level and an auxiliary tank 31 for temporarily storing washing water for detecting the water level are provided below the conduction path 29. The auxiliary tank 31 is configured to return the washing water to the bottom component 8b. Other configurations are the same as those in the first or second embodiment.

In the above configuration, the second cover body 22a
Since the branch pipe 25 provided in the above is L-shaped, it can be easily molded. Further, the welded portion 28 provided on the bottom component 8b can also be easily formed by a vertically punched die.
A character-like path can be formed.

When the washing water is discharged to the outside of the machine, a part of the washing water passing through the drain passage 23a is branched from the branch pipe 25. At this time, the amount of water branched can be adjusted by the ratio of the cross-sectional area of the flow rate adjusting unit 27 to the cross-sectional area of the drainage passage 23a. The washing water that has passed through the branch pipe 25 is discharged to the auxiliary tank 31 through the conduction path 29, and cleans contaminants adhering to the inner surface of the auxiliary tank 31, so that the function of the float switch 30 can be maintained.

Therefore, the washing water can be easily and effectively used for washing the auxiliary tank 31 outside the bottom member 8b without the need for a piping member such as a hose.

[0034]

As described above, according to the present invention, it is possible to reduce the number of piping members such as hoses and the parts required for attaching the piping members, and to make the whole product compact.

[0035]

[0036]

[0037]

[0038]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a dishwasher according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a dishwasher according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a dishwasher according to a third embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a conventional dishwasher.

[Explanation of symbols]

 6 Cleaning tank 8 Bottom component 14 First recess (recess) 15 First cover body (cover body)

Claims (5)

(57) [Claims] 1. A metal washing machine having a resin bottom component.
A cleaning tank equipped with a cleaning tank body, and disposed in the cleaning tank for cleaning
A washing nozzle for injecting water, washing water or the like to the washing nozzle
A dishwasher, comprising: a washing pump for conveying a liquid; and a bottom component of the washing tank integrally formed with a concave portion for conveying a liquid such as washing water, and a cover body integrally welded to the concave portion. 2. The dishwasher according to claim 1, wherein the washing pump is attached to the bottom component . 3. A drain pump for discharging washing water or the like is provided on a bottom structure.
2. A drainage path formed by integrally attaching a concave member for discharging a liquid such as washing water outside the machine to the bottom member, and integrally welding a cover body to the concave member. 2. The dishwasher according to 2. 4. The dishwasher according to claim 3, wherein a part of the drainage path is provided at a position higher than the washing water level. 5. A branch pipe integrally formed on a cover body,
The dishwasher according to any one of claims 1 to 4, wherein an outlet of the branch pipe is welded to a conduction path communicating with the outside of the bottom component.