JPH0518483U - Washing machine leg device - Google Patents

Abstract

(57) [Summary] [Object] To improve the shape of the elastic legs of a leg device of a washing machine using elastic legs so that the vibration damping effect of the washing machine is high and the structure is simple. The leg device of a washing machine according to the present invention is provided at the bottom of the washing machine body and has a fixed leg 10 having a recess opening downward.
And fixed in the recess of the fixed leg 10,
And a spherical elastic leg 12 for elastically supporting the main body of the washing machine on the floor surface through the center.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a leg device of a washing machine.

[0002]

[Prior Art]

 As a conventional example, a cylindrical elastic leg is interposed between the fixed leg provided on the bottom of the washing machine body and the floor surface, and a concave portion or a convex portion is provided on the ground contact surface with the floor surface of the elastic leg. A leg device of a washing machine is disclosed in Japanese Patent Laid-Open No. 2-72298 (F16M 11/22).

When the number of rotations of the motor for driving the dehydration tub reaches 100 to 200 rpm in the initial stage of dehydration, the outer tub resonates and vibrates greatly, which causes the main body of the washing machine to vibrate greatly. After that, when the drive motor reaches 800 to 900 rpm, it rotates at high speed synchronously (hereinafter, this period is called the dehydration stable period), but at this time, the outer tub vibrates finely and the washing machine body also vibrates finely. .

In the above-mentioned conventional example, by providing a concave portion or a convex portion on the ground contact surface of the elastic leg with the floor surface, the ground contact area with the floor surface is increased at the initial stage of dehydration, and a strong support state is obtained. By doing so, the amplitude is suppressed, and during the dehydration stable period, the elastic legs are quickly expanded and contracted up and down to absorb small vibrations, thereby reducing the vibration of the washing machine body.

[0005]

[Problems to be solved by the device]

 However, in the conventional example, there is a problem that the structure of the elastic leg is very complicated and it is difficult to form.

The present invention solves such a problem.

[0007]

Means for Solving the Problems A leg device for a washing machine according to the present invention comprises a fixed leg provided at a bottom portion of a main body of a washing machine and having a recess opening to the lower side, and a fixing device fixed in the recess of the fixed leg. And a spherical elastic leg that elastically supports the main body of the washing machine on the floor through the fixed leg.

[0008]

[Action]

 Since the elastic legs are spherical, they are easily compressed against load motion from above, and the ground contact area with the floor surface becomes large in the early stages of dehydration, and large vibrations can be reduced.

[0009]

【Example】

 An embodiment of the present invention will be described with reference to the drawings.

In FIG. 3, 1 is a machine frame, 2 is an outer tank suspended and supported by four suspension bars 3 in the machine frame 1, 4 is a space between each suspension bar 3 and a lower side wall of the outer tank 2. The anti-vibration device 5 inserted in the outer tub 2 is a washing / dehydrating tub rotatably supported in the outer tub 2 and has a large number of dewatering holes in the periphery although not shown. 6 is a rotary blade rotatably arranged at the bottom of the washing / dehydrating tub 5, and 7 is a drive motor connected to the washing / dehydrating tub 5 and the rotary wing 6 via a power transmission mechanism 8. At times, only the rotary blades 6 are rotated, and at the time of dehydration, both the washing / dehydrating tank 5 and the rotary blades 6 are rotated in one direction at high speed.

In FIG. 1 and FIG. 2, 9 is a foot stand provided at the bottom of the main body of the washing machine. Numeral 10 is a cylindrical fixed leg which is provided at four places near the corners of the leg base 9 and opens downward. At the opening, projecting pieces 11 project inward from three places. Therefore, the opening is smaller than the inner diameter of the central portion of the fixed leg by that amount. Numeral 12 is a spherical elastic leg loosely fitted in the fixed leg 10, and its diameter is smaller than the inner diameter of the central portion of the fixed leg and larger than the opening. The elastic leg 12 is compressed vertically so as to have a smaller horizontal diameter, is fitted into the opening, and once fitted, the diameter is larger than the opening. Therefore, even if the washing machine body is lifted, the fixed leg is fixed. It never falls off 10.

Further, here, the material of the elastic leg is a soft rubber such as isoprene-isobutyl rubber or polynorbornene rubber.

At the initial stage of dehydration, since the laundry in the washing / dehydrating tub 5 contains a large amount of water, the main body of the washing machine becomes heavy, and the elastic legs 12 supporting the main body via the fixed legs 10 are subjected to a large load. Adds weight. Since the elastic leg 12 is loosely fitted to the fixed leg 10, both the upper part and the lower part are largely compressed as shown in FIG. 4, and the ground contact area with the floor surface becomes large. At this time, even if the outer tub 2 resonates and shakes greatly, the elastic leg 12 has a large ground contact area and is in a strong supporting state, so that the washing machine body does not shake greatly.

On the other hand, since the water content of the laundry is discharged during the dehydration stable period, the main body of the washing machine becomes lighter. When the body becomes lighter, the elastic legs 12 have a shape close to a sphere as shown in FIG. At this time, the elastic leg 12 quickly expands and contracts vertically in response to small vibrations and absorbs the vibrations.

As described above, in the leg device of the washing machine of this embodiment, the legs can be strengthened to suppress large vibrations in the initial stage of dehydration, and fine vibrations can be generated during the dehydration stable period. In response, the elastic legs can be expanded and contracted vertically to absorb vibration. Therefore, the vibration of the main body of the washing machine can be reduced.

Further, the structure of the elastic leg is very simple, it is easy to mold, and the fixing to the fixed leg can be done only by deforming the elastic leg and inserting it from the opening, and it is necessary to fix it with screws or the like. Since it is not necessary, the cost is low and the installation work can be performed easily.

The leg device is even more effective for a drum type washing machine such as a fully automatic washer / dryer in which vibration during dehydration is particularly large.

[0018]

[Effect of the device]

 According to the constitution of the leg device of the washing machine of the present invention, the vibration of the washing machine body in the initial stage of dehydration and the stable period of dehydration can be greatly reduced.

Further, since the elastic legs have a simple structure, they can be easily molded and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a bottom view of a leg device of a washing machine according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a side sectional view showing an outline of a washing machine provided with the leg device of the present invention.

FIG. 4 is a cross-sectional view showing the state of the elastic legs at the initial stage of dehydration (when heavily loaded).

FIG. 5 is a cross-sectional view showing a state of the elastic leg during a dehydration stable period (when a small load is applied).

[Explanation of symbols]

 10 Fixed leg 12 Elastic leg

Claims (1)

[Scope of utility model registration request] 1. A fixed leg provided at a bottom portion of a washing machine main body and having a recess opening downward, and fixed to the concave portion of the fixed leg, the washing machine main body being fixed to the floor through the fixed leg. A leg device for a washing machine, comprising: a spherical elastic leg that elastically supports the base.