JPH02309924A - Tableware washing machine - Google Patents

Abstract

PURPOSE:To reduce noise by forming integrally a washing tank as a double tank consisting of an inner tank and an outer tank made of a synthetic resin, providing an opening part on the upper face of an internal space of the double wall, forming the whole washing tank to a roughly double structure together with a cover body of the upper part, and using the part between the inner tank and the outer tank as a feed water path. CONSTITUTION:A washing tank 14 consists of a double wall structure in which an inner tank 14a and an outer tank 14b made of a resin are formed integrally, and in a space of the inside of the double wall, an opening part is provided on the upper face, a cover body 14c covers the washing tank body from the upper face, and the whole washing tank 14 is constituted watertightly of the outer tank 14b. In this state, city water brought to feed water from a solenoid valve 17 connected to a feed water port 16 provided on the outer tank 14b is brought to feed water first to the inside of the double wall of the washing tank, and thereafter, brought to feed water to the inside of the washing tank from a water discharge port 15 provided on the upper part of the inner tank 14a. In such a way, city water filled in the inside of the double wall at the time of washing demonstrates effectiveness as a vibration-proof and sound- proof material.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dishwasher that washes and dries dishes in a washing tank.

2. Description of the Related Art As shown in FIG. 2, a conventional dishwasher has a box-shaped washing tank 2 with an open front inside a main body 1 of the dishwasher. 3 is a water supply electromagnetic valve that supplies tap water to the inside of the cleaning tank 2, and 4 is a water spout to the inside of the cleaning tank 3. A pump 6 circulates the cleaning water inside the cleaning tank 2, and is driven to rotate by the motor 6. 7 is a leftover filter, and the sucked washing water is pressurized by the washing pump 5 and passed through the nozzle/I.
/8 and washes the tableware 10 placed in the basket 9. Reference numeral 11 denotes a door provided to cover the front opening of the washing machine [2] in order to take in and take out the tableware 1Q.

12 is a back plate, and 13 is a bottom plate.

Problems to be Solved by the Invention According to the conventional configuration, since the cleaning tank 2 is a single-layer structure, the following problems have occurred.

(1) Since the cleaning tank 2 has a single structure, the nozzle/I/
The collision sound between the cleaning water sprayed from the cleaning tank 2 and the cleaning tank 2 was not absorbed and leaked to the outside of the equipment, resulting in an increase in so-called cleaning noise.

(2) In order to reduce the cleaning noise, a vibration-proofing material or a sound-proofing material was attached to the outer wall of the cleaning tank 2, which resulted in an increase in the number of parts and an increase in the number of assembly steps.

(■ Since the cleaning tank 2 becomes high temperature during cleaning, it is necessary to insulate it for safety reasons, so the main body 1 and a back plate that cover the cleaning tank 2 are also required.

The present invention is intended to solve the above-mentioned problems, and its primary purpose is to reduce noise and reduce the number of parts. The second purpose is to improve assembly, serviceability, and reliability.

Means for Solving the Problems In order to achieve the above-mentioned first object, the first technical means of the present invention is to provide a washing tank for storing tableware therein, which is made of synthetic resin and consists of an inner tank and an outer tank. The tank is integrally formed as a double tank, and the space between the inner tank and the outer tank is part of a water supply route to the cleaning tank, and tap water is stored in the route.

In addition, in order to achieve the second object, the second technical means of the present invention provides a cleaning tank with a cleaning tank main body having an opening for the double tank internal space on the upper surface, and a lid that covers this opening. It has a watertight structure with the body.

Effect According to the first technical means, the cleaning tank is made of synthetic resin and has a double tank consisting of an inner tank and an outer tank, and the water supply route is between the inner tank and the outer tank, and tap water is supplied to the washing tank. Due to the stagnation structure, collision noise between the washing water and the washing tank is reduced due to the increased rigidity of the double tank and the anti-vibration effect of the water stagnant in the tank space, reducing washing noise. can be achieved. Moreover, since it has a double structure, the number of parts can be reduced without any problem even if the cleaning tank is used as an outer frame.

Further, according to the second technical means, the cleaning tank includes a cleaning tank main body configured to have a double tank space opening on the upper surface;
Due to the watertight structure with the lid covering the opening,
Since the watertight surface that prevents tap water from leaking is located above, the possibility of water leakage can be minimized even if sealing is insufficient due to aging or manufacturing errors.

EXAMPLE Hereinafter, an example of the dishwasher of the present invention will be explained based on FIG.

In the figure, 14 is a cleaning tank, which has a double-walled structure in which an inner tank 14a and an outer tank 14b made of resin are integrally formed. The space inside the double wall is configured to have an opening on the top surface. A part of the outer tank 14b also serves as part of the outer shell of the product. Reference numeral 14c denotes a lid that covers the cleaning tank main body from the top side, and together make the entire cleaning tank 14 watertight.

16 is a water spout provided in the inner tank 14a into the cleaning tank. Reference numeral 16 denotes a water supply port provided on the outside ff11ab, to which a water supply solenoid valve 17 is connected.

18 is a main body, which constitutes a part of the outer shell of the product.

A pump 19 circulates cleaning water inside the cleaning tank 14, and is driven to rotate by a motor 2Q. Reference numeral 21 denotes a leftover filter, and the sucked washing water is pressurized by a washing pump 19 and sprayed from a nozzle/I/22 to wash dishes 24 placed in a basket 23. 25 is a door for taking out and taking out the tableware 24. 26 is a bottom plate.

Next, the operation of the above configuration will be explained.

Tap water supplied from the water supply solenoid valve 17 connected to the water supply port 16 provided on the outside 114b is first supplied inside the double wall of the cleaning tank, and then passes through the water supply port 16 provided on the upper part of the inner tank 14a. Water is supplied into the cleaning tank. Therefore, during cleaning, the tap water filled inside the double wall can act as a vibration-proofing material and a sound-proofing material, and sound can be reduced to the outside without being transmitted to the outside. In addition, since the water level inside the double wall is below the joint surface with the lid 14G that constitutes the cleaning tank 14, there is inherently little possibility of water leakage, and there is no possibility of water leakage due to manufacturing errors or aging of parts. Even if water quality decreases, the possibility of a water leakage accident occurring is extremely small.

Effects of the Invention As is clear from the above embodiments, according to the present invention, the cleaning tank is made of synthetic resin and is integrally formed as a double tank consisting of an inner tank and an outer tank, and the inner space of this double wall is is formed to have an opening on the upper surface, and the entire cleaning tank has a substantially double structure with the upper lid body, and the water supply route is between the inner tank and the outer tank,
Since the tap water is retained, the collision sound of the washing water sprayed from the nozzle against the inner wall of the washing tank is reduced, and noise can be reduced. In addition, since tap water is used as the soundproofing material, not only are there no need for soundproofing parts, but the cost is also the lowest, and the watertight surface of the cleaning tank is at the top, making it easier to assemble and service. This also improves the performance and reliability of parts.

As a result, it is possible to provide a dishwasher that is less expensive and has superior performance by reducing noise overall and reducing the number of parts.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a dishwasher according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a conventional dishwasher. 14...Cleaning tank, 14a...Inner tank, 1
4b... Outer tank, 14c... Lid body, 16
...Water outlet, 16...Water supply port, 18.
...Body, 19...Pump, 22...
...Nozzle.

Claims (2)

[Claims] (1) The washing tank for storing tableware inside is formed into a substantially double tank consisting of an inner tank and an outer tank made of synthetic resin, and the inner tank has a water spout into the washing tank and an outer tank. A dishwasher in which the tank is provided with a water supply port between the double tanks and a connection port to a water supply valve, and the inside of the wall of the double tank is configured as a part of the water supply path. (2) The dishwasher according to claim 1, wherein the washing tank is watertightly constructed of a washing tank main body configured to have an opening for the double tank internal space on the upper surface, and a lid body that covers this opening. .