JPS63189198A - Vibration-proof apparatus of dehydration 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 Field of the Invention The present invention relates to a vibration isolating device for a dehydrating washing machine that washes and dehydrates clothes and the like.

2. Description of the Related Art Conventionally, this type of dehydrating washing machine was developed, for example, by
As shown in Publication No. 10, it had a structure as shown in FIG. That is, in the figure, 1 is the main body of the dehydrating washer, 2 is a washing/dehydrating tank with a plurality of dehydrating holes 3 formed in the inner peripheral wall, and 4 is a resin-made washing/dehydrating tank in which the washing/dehydrating tank 2 is rotatably installed. Laundry receiving tank, 5 is a stirring blade provided at the center inner bottom of the washing and dehydrating tank 2; 6. is the transmission mechanism, which contains a reduction gear for washing, a clutch for switching between washing and spin-drying, and a brake for spin-drying. 7 is a motor attached to the bottom of the outer tank 4, and the power of this motor 7 is supplied to a motor pulley 8.
Belt 9. It is transmitted via the impeller pulley 10. 1
Reference numeral 1 denotes a vibration isolating mechanism having a compression spring 11a, which is suspended from the main body 1, and supports the washing tank 4 in a suspended vibration-proof manner from the main body 1. Reference numeral 12 denotes a main body cover made of resin provided on the upper part of the main body 1, and is equipped with a laundry input port 13, an operation panel, and the like.

The dehydrating washing machine having this configuration uses the vibration isolation mechanism 11 to attenuate horizontal and vertical vibrations of the washing tub 4 at the time of starting dehydration due to unevenness of the objects to be dehydrated, thereby preventing the washing tub 4 from colliding with the main body 1. However, since the friction damping of the vibration isolation mechanism 11 is insufficient for horizontal vibrations, the washing tub 4 may collide with the main body 1 or the safety switch (not shown) may be activated. Normal dehydration sometimes did not occur even after the operation was stopped.

In order to solve this problem, the inventors have already proposed a vibration isolating device for a dewatering and washing machine having a structure as shown in FIG. In FIG. 9, the members indicated by 1.2 degrees and 4.11 are the same as those in the conventional example shown in FIG. 8, so their explanation will be omitted. Reference numeral 23 denotes a mounting portion for the elastic body 24, which is integrally molded with the washing tank 4.

24 is an elastic body made of a coil spring, and one end is attached to part 2.
3, and a sliding body 26 is attached to the other end. This sliding body 26 is slidably in elastic contact with the side wall of the main body 1.

With this configuration, the material to be dehydrated is unevenly distributed during dehydration.
Even if it is covered with cloth, the whirling vibration of the washing tank 4 at the start of dehydration is suppressed by the reaction force of the elastic body 24, the sliding body 25 and the main body 1.
The sliding friction force between the washing tank 4 and the main body 1 is reduced, preventing the washing tub 4 from colliding with the main body 1, and normal dehydration is performed.

Problems to be Solved by the Invention As mentioned above, the structure already proposed has a remarkable action and effect as a vibration isolating device for a washer-extractor, but when the swing of the washing tub 4 becomes large, Laundry tank 4
As the reaction force of the elastic body 240 against the main body 1 increases, the reaction force against the main body 1 also increases, causing cracks to occur on the side surfaces of the main body 1, which is made of a thin metal plate. There were problems such as the friction of the sliding body 26 causing the plating on the inner wall of the main body to peel off.

The present invention solves these problems, reduces the swinging vibration of the washing tub at the start of spin-drying, enables smooth spin-drying, and increases the size of the washing and spin-drying tub with the same main body as before. The purpose is to increase the capacity 9, and conversely, to make the main body smaller and more compact.

Means for Solving the Problems The technical means of the present invention for achieving the above object is to interpose an elastic body between the side wall of the resin main body cover attached to the upper part of the main body and the side wall of the washing tub. This elastic body has a sliding body at one end, and the other end of the elastic body is fixed to either the main body cover or the washing tub, and the sliding body attached to the elastic body is attached to the side wall of the washing tub or the main body cover. It is slidably and elastically attached to the side wall, and this prevents the washing tub from colliding with the main body when dewatering is activated.

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

In other words, since the elastic body is interposed between the main body cover and the washing tub, and the sliding body at one end of the elastic body is in elastic contact with the main body cover or the washing tub, uneven shifting of the laundry when starting the spin-drying process is prevented. Even if the swinging vibration of the washing tub becomes large, it can be suppressed by the elastic body, and the vibration can be damped by the friction between the sliding body and the main body or the washing tub. As a result, even if the laundry to be washed is unevenly distributed, smooth dehydration can be performed without the washing tank colliding with the main body when dehydration is started.

Furthermore, since the main body cover or washing tank with which the sliding body comes into elastic contact is made of resin, the frictional characteristics between the two do not change over time due to corrosion, etc., and rigidity can be increased by molding lips etc. In particular, it is possible to eliminate the sagging caused by the reaction force that suppresses the whirling of the washing tub at the time of starting spin-drying.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. .

FIG. 1 is a front cross-sectional view of a dewatering and washing machine according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the same plane.

In the figure, 1 to 11 are the same as the members of the conventional example shown in FIG. 8, so their explanation will be omitted. Reference numeral 14 denotes a resin main body cover provided on the upper part of the main body 1, which is equipped with a laundry input slot 15, an operation panel, etc., and the lower end of the side wall is a jacket part 14a.
It is attached to the main body 1 by. A part of the fastening part 14a extends inside the side wall of the main body 1, and a mounting part 16 that projects inward is formed in the extending part. 17
is an elastic body made of a coil spring, one end of which is fixed to the mounting portion 16, and the other end of which is fitted with a sliding body 18 as shown in FIG. This sliding body 18 is slidably and elastically connected to the washing tank 4.

The operation of the dehydrating washing machine configured as described above will be described below.

During washing, when washing water is poured into the washing/dehydrating tub 2 and the washing tub 4, the washing tub 4 is lowered by its weight. Due to this lowering, the compression spring 11a provided in the vibration isolating mechanism 11 is fully compressed, but during washing, the stirring blades 6 rotate and the laundry is only moved by the water flow, so the washing tank The vibration of No. 4 is relatively small, and vibration during washing does not pose much of a problem.

On the other hand, during spin-drying, the washing water in the washing tub 4 is discharged to the outside, so the weight of the washing tub 4 decreases.

With this decrease, the compression spring 11a/ of the vibration isolation mechanism 11,
゛ is in a slightly elongated state and damps vibrations of the laundry receiving tub 4 caused by uneven distribution of laundry at the start of dewatering.

Generally, the vibrations of the washing tub 4 during dewatering can be broadly divided into horizontal vibrations and vertical vibrations. The conventional vibration isolation mechanism 11 can sufficiently absorb vibrations in the vertical direction, but it is insufficient in absorbing vibrations in the horizontal direction when the laundry is highly uneven. In order to further increase the washing capacity, it is necessary to increase the outer diameters of the washing/dehydrating tub 2 and the washing tank 4. At that time, in order to keep the main body 1 to the same floor area as before, it is necessary to It is necessary to reduce the gap with the receiving tank 4. In order to reduce this gap, it is necessary to suppress vibrations in the horizontal direction during dewatering of the washing tub 4 more than before.

Therefore, in this embodiment, in order to suppress vibrations in the horizontal direction, especially vibrations at the initial stage of startup, one end of the elastic body 17 is fixed to the mounting part 16 protruding from the extension part of the main body cover 14, and the other end is fixed to the mounting part 16. A sliding body 18 is attached to the end, and this sliding body 18 is slidably and elastically interposed in the washing tank 4. This results in
When the amount of horizontal displacement of the washing tub 4 becomes large, the elastic body 17 applies a large reaction force to the washing tub 4, and the reaction force of the elastic body 17 increases the contact pressure between the sliding body 18 and the washing tub 4. increases, and friction occurs during this time, causing the washing tank 4 to
to suppress vibrations. Therefore, vibrations with large amplitudes in the horizontal direction that occur due to unevenness of the laundry at the initial stage of starting the spin-drying operation are suppressed, and the laundry receiving tub 4 is prevented from colliding with the main body 1, so that smooth spin-drying can be performed. In addition, the elastic body 17 described above
0 reaction force is also applied to the fixed mounting part 16, but since the mounting part 16 is made of resin, its rigidity is increased by lip etc., and the reaction force will not cause deformation of the main body 1 such as wobbling. do not have. Furthermore, since the portion 1e of the elastic body 17 can be integrally molded with the main body cover 14, the mounting cost becomes very low.

Furthermore, since the elastic body 17 of this embodiment has one end fixed and a sliding body 18 attached to the other end so as to be slidable, the elastic body 17 can be used even when the washing tub 4 is moved vertically and horizontally. Since the above stress is not applied, the wire diameter of the elastic body 17 can be reduced and the durability can be improved.

Further, by providing the elastic bodies 17 at at least four substantially symmetrical positions as shown in FIG. 2, the laundry receiving tub 4 can be located at the center no matter which direction the main body 1 is installed with an inclination. Therefore, even if the installation location is slightly sloped, dehydration will be performed normally, and the operation will not be stopped like before.
There is no inconvenience such as having to restart after rinsing again.

FIG. 3 is a front sectional view of a vibration isolating device for a dehydrating washing machine according to a second embodiment of the present invention.

In the figure, 2 to 1o are the same as the members of the conventional example shown in FIG. 8, so their explanation will be omitted. Reference numeral 19 is the main body, and by making the height lower than before, the upper end of the washing tub 4 is located at the main body 19.
It protrudes from the top. 20 is a vibration isolating mechanism having a compression spring 20a, which is shorter than the conventional one because the height of the main body 19 is lowered.

Reference numeral 21 denotes a main body cover made of resin, which is equipped with a laundry input port 22, an operation panel, etc., and is attached to the upper part of the main body 19. Reference numeral 23 denotes a mounting portion for the elastic body 24, which is integrally molded with the washing tank 4. Reference numeral 24 denotes an elastic body made of a coil spring, one end of which is fixed to the mounting portion 23, and a sliding body 25 is attached to the other end.

This sliding body 25 is slidably in elastic contact with the side wall of the main body cover 21.

By adopting the above-mentioned configuration, similarly to the first embodiment, vibrations with large amplitudes in the horizontal direction generated due to unevenness of the laundry at the initial stage of starting spin-drying are suppressed by the reaction force of the elastic body 24, the sliding body 25, and the main body cover. suppressed by friction between 21 and
The washing tank 4 is prevented from colliding with the main body 1, and smooth dewatering can be performed. Incidentally, the reaction force that suppresses the vibration of the washing tub 4 is also applied to the main body cover 21, but since the main body cover 21 is made of resin, it is easy to design it with increased rigidity.
There is no deformation of the main body cover 21 such as wobbling due to the reaction force described above. Moreover, although the sliding body 25 is slid on the side wall of the main body cover 21, if a resin material or the like is used for the sliding body 25, since the main body cover 21 is made of resin, the sliding body 26 and the main body cover will be damaged by corrosion. The friction condition with the material does not change and the durability is good.

Although cylindrical compression coil springs with equal pitches are used as the elastic bodies 17 and 24 in this embodiment, elastic bodies with non-linear load-displacement characteristics as shown in FIG. 4 are used. Since a large suppressing force can be applied only when the vibration of is large, it is possible to suppress the vibration of the washing tank 4 when starting the spin-drying operation, and to reduce the transmission of vibration to the main bodies 1 and 19 when the spin-drying operation is steady.

Examples of the elastic body having non-linear load-displacement characteristics include an elastic body 26 made of cylindrical compression coil springs with unequal pitches as shown in FIG. 6, and an elastic body 26 made of conical compression coil springs as shown in FIG. There is a body 27, and an elastic body 28 made of anti-vibration rubber as shown in FIG.

Moreover, as shown in FIG. 7, the end surface 29 of the elastic body 28 is
As long as the elastic body 28 can also serve as the function of the elastic body 28, the elastic body 28 may be used without providing a separate sliding body.

Furthermore, the elastic bodies 17 and 24 may be fixed to either the main body cover 14.21 or the washing tub 4; in short, the elastic bodies 17.
24 may be fixed and the other may be slidable.

Effects of the Invention The present invention has an elastic body interposed between the side wall of a resin main body cover attached to the upper part of the main body and the side wall of the washing tub, and this elastic body has a sliding body at one end. The other end is fixed to either the main body cover or the washing tub, and the sliding body attached to the elastic body is slidably elastically contacted to the side wall of the washing tub or the main body cover, so that the laundry is not biased. Even if spin-drying is started in this state, the washing tub can be started without colliding with the main body, and smooth spin-drying can be performed.

In addition, since the main body cover and washing tank are made of resin, sufficient rigidity can be ensured, and the main body cover will not be deformed by the reaction force of the elastic body that suppresses the vibration of the washing tank. Since there is no corrosion, the friction characteristics with the sliding body are stable and durable.

Furthermore, even if the main unit is installed on an inclined surface, the movement of the laundry tub is suppressed by the elastic body, and the laundry tub is located approximately in the center of the main unit, and the dewatering start characteristics are the same as when it is installed on a horizontal surface. be able to.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view of a dehydrating washing machine according to a first embodiment of the present invention, Fig. 2 is a sectional view of the same plane, and Fig. 3 is a vibration-proofing of a dehydrating washing machine according to a second embodiment of the present invention. 4 is a load-displacement characteristic diagram of the elastic body. 6 is a front view of a cylindrical compression coil spring with unequal pitches. 6 is a front view of a conical compression coil spring. Figure 7 is a front view of the anti-vibration rubber, Figure 8 is a front sectional view of a conventional dehydrating washing machine, and Figure 9 is a front sectional view of a conventional dehydrating washing machine.
The figure is an enlarged sectional view of a vibration isolator that has been proposed so far. 1.19...Main body, 4...Washing acceptance,
11.20... Anti-vibration mechanism, 14.21...
・Body cover, 17゜24.26, 27.28...
...Elastic body, 18,25°29...Sliding body. Name of agent: Patent attorney Toshio Nakao and 1 other person1-
m−shitoζi1≦, 1−−−≧tomii;to2 Figure 4 Female position

Claims (1)

[Claims] A washing tank supported by a vibration isolation mechanism is installed inside the main body, and a resin main body cover equipped with a laundry input slot, operating section, etc. is attached to the top of the main body, and the side wall of the main body cover and the side wall of the washing tank are connected to each other. An elastic body is interposed between them, and this elastic body has a sliding body at one end, and the other end of the elastic body is fixed to either the main body cover or the washing tank, and the sliding body attached to the elastic body is washed. A vibration isolating device for a dehydrating washing machine that is slidably and elastically connected to the side wall of the receiver tank or the side wall of the main body cover.