JPS6268491A - One-tub type dehydrating washing machine - 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 relates to a single-tub centrifugal dehydrating washing machine.

2. Description of the Related Art A conventional single-tub centrifugal dehydrating washing machine has a structure as shown in FIG. The dehydration tank is equipped with a pulsator 3 at the bottom and a large number of small holes 4 for draining water on the side wall. Reference numeral 6 denotes a mechanical case having a mechanism for transmitting the driving force of the motor 6 so as to rotate only the pulsator 3 during washing, and to rotate the washing and dehydrating tub 2 during dehydration. Further, the motor 6 transmits driving force to the mechanical case 6 through a belt 7 and a pulley 8. 9 is the drain valve of the outer dehydration tank 1, 10 is the brake arm, and 11 is the drain valve 9 and the brake arm 1.
0 is a solenoid that pulls it, 12 is a support plate, and the dehydration outer tank 1.
A motor 6, a mechanical case 5, etc. are disposed, and are suspended from a main body 14 by a support rod 13.

16 is a balancer installed at the top of the washing and dehydrating tank;
6 is a dehydration outer tank cover provided on the upper part of the dehydration outer tank 1;
Reference numeral 17 denotes an upper exterior part provided on the upper part of the main body 14, and has an opening/closing lid 18. Further, 19 is a drainage hose.

Problems to be Solved by the Invention However, in a single-tub centrifugal dehydrating washing machine with such a structure,
The first problem is that during washing, when the cloth rotates smoothly due to the rotational force of the pulsator, the washing water splashes, jumps over the outer dehydration tank cover 16, and passes between the outer dehydration tank 1 and the main body 14. , it may fall to the floor, or it may pass through the outside of the outer dehydration tank 1 and enter electrical components such as the motor 6 and the solenoid 11 provided at the bottom, causing insulation deterioration.

Bubbles generated during cleaning may still remain on the dehydration outer tank cover 16, and during dehydration, the bubbles may be blown away and enter the controller (not shown) of the upper exterior part 17 or fall downward. This causes significant insulation deterioration of electrical components.

The second problem is that when the motor 6 is activated to start spin-drying, if the wash clothes are located on one side in the washing tub/spin-drying tub 2, the outer spin-drying tub 1 begins to rotate eccentrically and hits the main body 14. In cases of impact noise or severe cases, the main unit itself may be moved, causing vibration problems.

Means for Solving the Problems The technical means of the present invention for solving the above two problems is to provide an annular bellows cover that is vertically expandable and retractable between the dehydration outer tank cover 16 and the upper exterior part 17. is to be installed.

For production The effect of this technical means is as follows.

That is, in the first method of preventing splashing of washing water, by providing a telescopic annular cover between the dehydration outer tub cover and the lower surface of the upper exterior part, the splashing of washing water can be prevented from splashing on the inner surface of the annular cover. Alternatively, it simply adheres to the back side of the top opening/closing lid and does not cause any practical problems.

In addition, in order to prevent eccentricity of the outer dehydration tank 1 and contact with the main body 14 at the time of starting the second dehydration, a spiral iron wire is integrally inserted into the bellows part of the annular cover, which is made of a telescopic structure, and is used as a spring. By providing flexibility and rigidity, a function is added to suppress the amount of eccentric movement of the upper part of the outer dehydration tank, which solves the problem of photographing when starting dehydration.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. In Fig. 1, 16' is a dewatering outer tank cover having a U-shaped outer circumferential groove 2Q, and 17' is an inverted U-shaped outer circumferential groove 21.
The upper exterior part has a 22 is an annular bellows cover that can be expanded and contracted up and down, and a spiral iron wire 23.
24 are integrally molded. In order to add waterproof performance, a packing 25 such as a sponge is inserted into the U-shaped grooves 2Q and 21. With the above configuration, the annular bellows cover can be used both in the state shown in FIG. 1A when there is no water in the washing and dehydration tank 2, and in the state shown in FIG. 1B when there is water and the entire dehydration outer tank 1 has fallen downward. 22 expands and contracts up and down a
It exhibits flexibility in the range from b to b.

Conventionally, the gap between the outer dehydration tank 1 and the main body 14 was C as shown in Fig. 2, by suppressing the horizontal eccentricity of the outer dehydration tank when starting dehydration using the spring properties of the grooved annular bellows cover. Therefore, the inner diameter of the dehydration outer tank is D.
1, but as shown in FIG. 3, with the same main body dimensions, the gap can be reduced to 6 dimensions, and the inner diameter of the outer dewatering tank can therefore be increased to D2. This allows the washing machine to save space and wash a large amount of laundry, and significantly improves the added value of the washing machine.

Effects of the Invention The present invention provides an annular bellows cover that has two functions of waterproofing and spin-start eccentric control between the outer dehydration tank cover and the upper exterior part. It completely shuts out splashes and bubbles during dehydration, preventing them from entering electrical components, and has a practical effect that significantly improves safety.

It is also possible to increase the size of the dehydration tank and downsize the main body.

[Brief explanation of drawings]

1A and 1B are vertical cross-sectional views showing one embodiment of the present invention;
The figure is a plan view of the relationship between the conventional outer dehydration tank and the main body as viewed from above, Figure 3 is a plan view of the washing machine in this embodiment, and Figure 4 is a sectional view of the conventional single-tank centrifugal dehydration washing machine. It is. 1...Outer dehydration tank, 2...Dehydration/washing tub, 16°16'...Outer dehydration tank cover, 17.
17'... Upper exterior part, 22'... Annular bellows cover, 23, 24... Spiral iron wire,
25... Waterproof packing. Name of agent: Patent attorney Toshio Nakao and 1 other person
Figure 1 (A-Figure 2 #I4 Figure

Claims (3)

[Claims] (1) A main body, an outer dehydration tank suspended in the main body via a plurality of support rods, and an exterior part having an opening in the upper part of the main body, and an outer circumferential groove in the upper part of the outer dehydration tank. A single-tank dehydrating washing machine in which a telescopic annular bellows cover is attached between an outer dehydrating tank cover and an upper exterior part having an outer circumferential groove. (2) A one-tub type dehydrating washing machine according to claim 1, wherein the iron wire is integrally formed in a spiral shape within a telescopic annular bellows cover. (3) A single-tank dehydrating washing machine according to claim 1, which is equipped with waterproof packing in the outer circumferential groove of the upper exterior part and the outer circumferential groove of the outer dehydrating tank cover, and is mounted so as to be pressed in the vertical direction by the expansion and contraction pressure of the annular bellows cover. .