JPH0420319A - dishwasher - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention is a pump that washes dishes by discharging washing water.Page 2 The present invention relates to a dishwasher having a pump device.

2. Description of the Related Art In general, household dishwashers have become mainstream in which dishes are placed in a washing tank and the dishes are washed by spraying washing water into the washing tank.

The configuration of a conventional dishwasher of this type is shown in FIG.

As shown in the figure, a pump device 2 is provided at the lower bottom of the cleaning tank 1, and a suction port 3 of the pump device 2 is fixed so as to open at the inner bottom of the cleaning tank 1. Further, an arm nozzle 8 is provided in which the discharge pipe 4 of the pump device 2 is arranged at the inner bottom of the cleaning tank 1.
It is connected to the bearing 5 of the cleaning tank 1 and fixed to the bottom of the cleaning tank 1. The pump device 2 has a drive motor 7 for rotating the impeller 6.

In the above configuration, for cleaning, the drive motor 7 is energized, the impeller 6 is rotated, the cleaning water in the cleaning tank 1 is sucked through the suction port 3, and the arm nozzle bearing 5 and the arm nozzle are connected through the discharge pipe 4. 8 into the cleaning tank 1.
The purpose was to wash the dishes stored inside the machine 3/7 times.

Problem to be Solved by the Invention However, in the conventional configuration, the motor 7 for driving the impeller 6 of the pump device 2 is connected to the suction port 3 and the discharge pipe 4.
This means that the device 2 is directly fixed to the cleaning tank 1 through the rotation of the drive motor 7 and the vibration of the device 2 caused by the flow of cleaning water due to the rotation of the impeller 6 is transmitted to the cleaning tank 1. There was a problem in that the vibration caused by No. 1 increased the operating noise during the cleaning operation.

Therefore, an object of the present invention is to transmit the vibration of the pump device to the cleaning tank.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a first pump device.
The suction side and discharge side members of this pump device are suspended from the main body via an elastic body so as to be swingable, and the second and third members are attached to the cleaning tank so as to be able to follow the swinging motion. They are connected via an elastic body.

However, the outer peripheral part of the discharge pipe of the pump device and the cylindrical rising part surrounding the discharge pipe at the bottom of the cleaning tank are connected by a third cylindrical elastic body having at least one subwheel. be.

For production The effects of the above configuration are as follows.

In other words, since the pump device is swingably suspended from the main body via an elastic body, vibrations of the pump device are absorbed by the elastic body, and unabsorbed vibrations are caused by the reaction of the motor drive. This makes it possible to oscillate as a result of force, and prevent the vibrations of the pump device from being transmitted to the cleaning tank.

Still, the suction side and discharge side members of the pump device are connected to the second and third members so as to be able to follow the swinging of the pump device with respect to the cleaning tank.
Since they are connected via an elastic body, the swinging of the pump device is not hindered, and furthermore, vibrations of the pump device through the members on the suction side and the discharge side are difficult to be transmitted to the cleaning tank.

Further, the third elastic body has at least one subwheel, so that it can easily follow the swinging motion of the pump device, and performs a sealing function.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. Note that the same reference numerals are used for the same constituent members as those shown as the conventional example.

In FIG. 1, reference numeral 1 denotes a cleaning tank, the suction port 3 of the pump device 2 is provided at the front bottom 1a of the cleaning tank 1, and the discharge pipe 4 of the pump device 2 is located at the center bottom 1b of the cleaning tank 1. I'm letting you do it. The pump device 2 also includes a drive motor 7 for rotating the impeller 6.

Annular first elastic bodies 9 and 9' are attached to the outer periphery of the suction side member 2a of the pump device 2 and the outer periphery of the member protruding from the rear surface of the drive motor 7.
, 9' are held by annular mounting members 10, 10'.

1) Next, look at the diagram on the suction side of pump device 2. 2
Shown in +. Flange portions 10 are provided on both sides of the annular mounting member 10.
The flange portion 10a is further suspended by a wire rod 12 from a support member 11a protruding from the inner bottom of the main body 11.

As shown in FIG. A cylindrical rising part 9 1b surrounding the discharge pipe 4 at the bottom of the medium heat is connected by a pipe-shaped third elastic body 13. This second.
The structure is such that the third elastic bodies 12 and 13 do not prevent the pump device 2 from swinging relative to the cleaning tank 1.

In the second configuration, during the cleaning operation, the drive motor 7 for rotating the impeller 60 times is energized. The vibration of the drive motor 7 is transmitted to the pump device 2, and the pump device 2 generates vibration, but the amount of vibration is reduced by the first elastic bodies 9, 9', but only the first elastic bodies 9, 9' It is difficult to completely prevent this, and the pump device 2 will swing relative to the cleaning tank 1 due to motor vibration and cleaning water flow vibration. At this time, since the pump device 2 is suspended and supported so as to be swingable relative to the cleaning tank 1, it is possible to prevent vibrations of the pump device 7 from being transmitted to the cleaning tank 1. Further, the suction side member 2a and the discharge pipe 4 are connected to the second side member 2a. Since it is connected to the cleaning tank 1 by the third elastic body 12.13, the pump device 2 can swing freely, and the operating vibrations are transmitted to the cleaning tank 1.
It's hard to convey.

Next, another embodiment of the present invention will be described based on FIG.

In this embodiment, the discharge pipe 4 of the pump device 2 and the cylindrical rising part 1b at the center of the bottom of the cleaning tank 1 surrounding the discharge pipe 4 are connected by a third cylindrical elastic body 13 having a sub-ring part 13a. are doing. By having this secondary ring portion 12a, the degree of freedom of swinging of the pump device 2 is further improved.

Effects of the Invention As is clear from the above description of the embodiments, the present invention suspends and supports the pump device via an elastic body, and allows the suction side and discharge side members of the pump device to follow the swinging of the pump device. The pumps are connected through elastic bodies that prevent vibrations from the motor of the pump device and vibrations caused by the flow of cleaning water inside the pump from being transmitted to the cleaning tank, reducing operating noise and vibration. This makes it possible.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of the main parts of a dishwasher according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the main parts of the dishwasher, and FIG.
The figure is an enlarged cross-sectional view of main parts showing another embodiment of the present invention.
FIG. 4 is a longitudinal sectional view of a conventional dishwasher. 1...Cleaning tank, 2...Pump device, 2
a... Suction side member, 3... Suction part, 4
...Discharge pipe, 9, 9'...First elastic body, 12...Second elastic body, 13...
Third elastic body. Name of agent: Patent attorney Shigetaka Awano and one other person 1/ Figure 1 ,' o H

Claims (2)

[Claims] (1) A washing tank for storing tableware, a pump device having a suction side and a discharge side connected to the washing tank and driven by a motor, and a main body holding the washing tank and the pump device, and the pump The device is swingably suspended from the main body via a first elastic body, and members on the suction side and the discharge side of the pump device follow the swinging of the pump device with respect to the cleaning tank. A dishwasher possibly connected via a second and third elastic body. (2) The outer peripheral part of the discharge pipe of the pump device and the cylindrical rising part surrounding the discharge pipe at the bottom of the cleaning tank are connected by a third cylindrical elastic body having at least one subwheel. dishwasher.