JPS5929664Y2 - Balance weight of dehydrating washing machine - Google Patents

Description

[Detailed description of the invention] This invention provides an annular water storage body around the upper end of the washing and dehydrating tank.
This water reservoir is made to act as a balance weight when the tank is rotated, and is intended to reduce abnormal vibrations particularly at the beginning of the rotation of the tank and when braking is applied to the tank.

The present invention will be explained below based on the drawings showing one embodiment of the invention. 1 is a machine frame, 2 is a washing/dehydration tank, and a rotary blade 3 is provided at the bottom of the tank 2, and an outer tank 4 is provided on the outer periphery. There is.

This outer tank 4 is suspended from the machine frame 1 by a plurality of support rods 5, and a drive motor 6 and a bearing case 7 are provided at the bottom of the outer tank.

8 is an upper lid, and 9 is a control box.

An annular water storage body 1 is provided on the outer periphery of the upper end of the washing and dehydration tank 2.
0 is attached by a screw 11 or the like.

Water 12 is supplied into the annular water storage body 10 from a water inlet (not shown).
is injected to about 1 force of the total volume, and a plurality of baffle plates 13 are provided to protrude from the bottom of the water storage body.

As shown in FIG. 3, this baffle plate 13 has a circular arc-shaped cross section, and is convex on the side in the direction of rotation of the dehydration tank 2.

It acts as a large resistance against movement of water in the water storage body in the same direction as the rotational direction, and acts as a small resistance against movement in the opposite rotational direction.

The solid arrow in the figure indicates the rotation direction of the dehydration tank 2.

Next, the effect will be explained.

During dehydration, when the dehydration tank 2 rotates, the water 12 in the water storage body 10 is subjected to centrifugal force, and as shown by the dotted line in FIG. If the clothes are unevenly distributed in the dehydration tank 2, the water moves to compensate for the unevenness, that is, the water is concentrated on the opposite side of the dehydration tank 2 from the eccentric load caused by the clothes. This balances the eccentric load and prevents vibration of the tank 2.

At the beginning of rotation of the dehydration tank, the vibration due to eccentric load is large.
In order to reduce this vibration, quick response of the water in the water reservoir is required.

Therefore, in the present invention, the water in the water tank at the initial stage of rotation of the dehydration tank moves relatively in the counter-rotation direction of the water tank, so that the baffle plate 13
Since the water can be moved smoothly without being affected by the resistance caused by the dehydration tank, the vibration of the tank 2 can be reduced by quickly responding to the eccentric load of the dehydration tank and moving to compensate for it.

In addition, when the dehydration tank 2 is operated in a synchronous state, the vibration is small, and if the fluidity of the water in the dehydration body is too good, it will cause vibration. This prevents vibrations from occurring.

Furthermore, due to the decrease in the rotational speed of the dehydration tank 2 during braking, the balance that was maintained in 1 will be disrupted and large vibrations will easily occur, so the water in the dehydration unit 10 will be maintained in the balanced state during synchronous operation for as long as possible. It is required to press the button.

Therefore, in the present invention, the water in the water storage body 10 moves relatively in the direction of rotation of the dehydration tank during braking, and the baffle plate 13 as described above acts as a large resistance, and the water in the water storage body 10 is moved relatively to the direction of rotation of the dehydration tank. Since the balance is kept in the same state as before, the balance is less likely to be lost and large vibrations can be prevented from occurring.

FIG. 4 shows another embodiment of the baffle plate 13.

In this case, since the baffle plate 13 is in contact with the outer circumferential wall 10' of the water storage body, it is possible to provide greater resistance to the water being pushed toward the outer circumferential wall 10' by centrifugal force during synchronous operation.

As described above, in the present invention, the annular water storage body that stores balanced water acts as a large resistance against movement of this water in the same direction as the rotation direction of the dehydration tank, and acts as a large resistance against movement in the counter-rotation direction. Since a baffle plate is installed to create a small resistance during the initial rotation of the dehydration tank, the fluidity of the water is improved and the water moves quickly to compensate for the unbalanced load on the dehydration tank, minimizing the vibration of the dehydration tank. - When controlling the water tank, the baffle plate acts as a large resistance and reduces the fluidity of the water, so the water in the water tank can be maintained in a balanced state for a long time during synchronous operation, and the balance It can prevent the vibration of the tank caused by the collapse of the tank as much as possible, and of course, during synchronous operation, it can provide an appropriate resistance to the water to prevent vibrations caused by sudden water movement, and has a simple structure and excellent water balance effect. It is possible to demonstrate this.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view showing the entire dehydrating washing machine, Fig. 2 is an enlarged cross-sectional view of the main parts, Fig. 3 is a cross-sectional view of the annular water storage body, and Fig. 4 is a cross-sectional view of the annular water storage body of another embodiment. A cross-sectional view is shown respectively. 2... Washing and dehydration tank, 10... Annular water storage body, 13.
...Baffle board.

Claims (1)

[Scope of utility model registration request] An annular water storage body is provided on the outer periphery of the upper end of the washing and dewatering tank, and the water in this water storage body acts as a balance weight when the tank rotates. A balance weight for a dehydrating washing machine which is provided with a plurality of baffle plates deflected so as to provide a large resistance to movement in the direction of rotation and a small resistance to movement in the counter-rotation direction.