JPH1133275A - Vibration resistance device of dehydrating washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce impact sound and impact force generated from a hanging bar by providing buffering materials in a part which is fitted to the hanging bar in order to reduce impact sound in a vibration resistance mechanism constituted of a slider member, the hanging bar, a mobile body having a sliding member and a cylindrical body. SOLUTION: The vibration resistance spring 2c of the vibration resistance mechanism receives a load so as to be in adhesive state by throwing clothes and washing water, etc., into a spinning tub at the time of washing. Then, vibrating rotation occurs in an outer basin by the rotation of a stirring blade, the hanging bar 2b is freely moved in a gap among the fitting parts of the slider member 2a, the cylindrical body 2i and a spring receiver 2f, but it is hit against the inner wall surfaces of the respective fitting parts when a vibration becomes more than the gap. Then, the buffering materials 2k, 2l and 2m having cushion property such as rubber, etc., are provided in the fitting parts so as to absorb hitting sound or impact force at the time of a collision and to prevent transmission to the outer basin or an outer frame. Besides, the vibration occurs by the deviation of clothes, etc., as a cause at the time of dehydration, but the sound and impact force at the time of the collision are absorbed in the same way as that at the time of washing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration device for a dehydration washing machine, and more particularly to an anti-vibration mechanism suitable for reducing noise during washing and dehydration.

[0002]

2. Description of the Related Art A conventional spin-drying washing machine has a washing and dewatering tub having an outer frame and a stirring blade at the bottom center, an outer tub containing the washing and dehydrating tub, and the outer tub supported by the outer frame. It has a configuration provided with an anti-vibration mechanism. Japanese Patent Application Laid-Open No. 63-214285 discloses an anti-vibration device for reducing noise during washing and dehydration of a dehydrating washing machine. This vibration damping device has a configuration in which a cushion material made of rubber or the like is provided between a cylindrical body that receives both ends of a vibration damping spring and a spring receiver that is a constituent member of the moving body.

[0003]

In the above-mentioned prior art, during washing, when a garment, washing water, or the like is put into the washing and dewatering tub, the vibration isolating spring receives a load and contracts to be in a close contact state. When washing starts in this state and the stirring blades rotate, the outer tub is suspended from the outer frame by the suspension rod,
The outer tub also swings in the forward and reverse rotation directions due to the inertial force of rotation. At this time, when the inertia force is strong, the suspension rod is also pulled, and the vibration-proof spring comes up from the close contact state for a moment. For this reason, by providing a cushioning material made of rubber or the like between the cylindrical body receiving both ends of the vibration-proof spring and the spring receiver as a constituent member of the moving body, the vibration-proof due to the rotation of the stirring blade is provided. It becomes difficult to transmit the impact of expansion and contraction of the spring to the cylindrical body and the spring receiver. This makes it difficult for the impact to be transmitted to the outer frame and the outer tub via the hanging rod, thereby reducing noise during washing.

However, since the suspension rod and the slider member, the tubular body, and the moving body that constitute the vibration isolating mechanism are assembled in many cases by a fitting method, the suspension rod and the slider member, the tubular body, and the moving body are interposed. Has a gap. Therefore, when the outer tub is caused to sway or the like due to rotation of the rotating blades or the washing and dewatering tub, or when the hanging bar itself vibrates, the hanging bar freely moves through the above-mentioned gap portion, and the slider member, The sound collides with the inner wall surface of the fitting portion between the cylindrical body and the moving body, and a sound is generated. In addition, this impact was transmitted to the outer frame and the outer tub and caused noise during washing and dehydration.

[0005] It is an object of the present invention to reduce the impact noise and impact force generated from the hanging bar.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an anti-vibration mechanism comprising a moving member having a slider member, a hanging rod and a sliding member, and a cylindrical member. In order to reduce the size, a cushioning material is provided at a portion where the hanging bar is fitted.

[0007] It comprises an outer frame, a washing and dewatering tub having a stirring blade in the center of the bottom, an outer tub containing the washing and dewatering tub, and a vibration isolating mechanism for supporting the outer tub on the outer frame. A dehydration washing machine comprising: the vibration-proof mechanism includes a cylindrical member fixed to the outer tub side; and a sliding member that slides on an inner wall surface of the cylindrical member. A moving body, an elastic body provided inside the cylindrical body and elastically supporting the moving body on the cylindrical body, the moving body is attached to one end, and the other end is the outer frame side. And a suspension bar having a slider member supported thereon, and a cushioning material is provided at a fitting portion between the suspension bar and the tubular body, the slider member, and the moving body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1A is a longitudinal sectional view of a dehydration washing machine according to one embodiment of the present invention. FIG.
FIG. 2A is a cross-sectional view of the dehydration washing machine according to the embodiment of the present invention, as viewed in the direction of the arrows AA. In this drawing, only the basic components of the vibration isolating mechanism and the washing machine, which are main components of the present invention, are described, and other components, such as a panel switch, are omitted and not shown. Its main components are an outer frame 1, an outer tank 3 made of synthetic resin elastically supported by the outer frame 1 via a vibration isolating mechanism 2, and a stirrer 4 installed in the outer tank 3 to provide imbalance. SUS washing and spin-drying tub 5 with fluid balancer 11 for canceling, aluminum flange 6 supporting this washing and spin-drying tub on clutch shaft 6, clutch 7 supporting flange 6 and clutch 7, a mounting plate 9 that supports the motor 8 and is held in the outer tub 3, and a pulley / belt system 10 that transmits torque between the motor 8 and the clutch 7. During washing, the stirring blade 4 is rotated during dehydration, and the washing and dewatering tub 5 is rotated by the motor 8 via the pulley / belt system 10 via the clutch 7.

FIG. 2 is a longitudinal sectional view of an anti-vibration mechanism 2 according to one embodiment of the present invention. As shown in FIG. 2, the basic structure of the vibration isolation mechanism 2 is a slider member 2a having a spherical surface for swingably supporting the outer tub 3 on the outer frame 1, and the outer tub 3 held by the slider member 2a. The hanging rod 2b to be hung, the hanging rod 2b
, A vibration-proof spring 2c for elastically supporting the through-hole 2g and the outer tub 3, a spring seat 2e for receiving the vibration-proof spring 2c, a spring receiver 2f held by the hanging rod 2b, A cylindrical body 2i having a spherical surface 2h on the surface for supporting the outer tub 3 and fitted at one end with the vibration-proof spring 2c and including the vibration-proof spring 2c, the spring seat 2e, and the spring receiver 2f, The spring receiver 2 contained in the cylindrical body 2i
and a cushioning member 2k made of rubber or the like mounted on a fitting portion of the sliding member 2j, the suspension bar 2b and the slider member 2a, the cylindrical body 2i, and the spring receiver 2f for obtaining the friction attenuation by including the f. , 2l, 2m.

Here, when clothes, washing water, etc. are put into the washing and dewatering tub 5, or when the outer tub 3 vibrates up and down, a load is applied to the anti-vibration spring 2c of the anti-vibration mechanism 2. In addition, the spring seat 2e, the spring receiver 2f, and the sliding member 2j are integrated and move up and down relative to the cylindrical body 2i.
And the sliding member 2j will be referred to as a moving body 2d.

Next, the operation of the present invention will be described. At the time of washing, by putting clothes, washing water and the like into the washing and dewatering tub 5, the vibration isolating spring 2c of the vibration isolating mechanism 2 receives a load and becomes in a close contact state. Then, the stirring blade 4 rotates as described above,
Do the laundry. The rotation of the stirring blade 4 causes the outer tub 3 to whirling, and the suspension rod 2b includes the slider member 2a and the cylindrical body 2
i, it is possible to freely move between the gaps of the fitting portions with the spring receiver 2f, and when the vibration exceeds the gaps, it collides with the inner wall surface of each fitting portion. Therefore, cushioning materials 2k, 2l, 2 made of rubber or the like and having cushioning properties at the fitting portions.
By providing m, the noise at the time of washing can be reduced by absorbing the hitting sound and impact force at the time of the collision and preventing transmission to the outer tub 3 and the outer frame 1.

At the time of spin-drying, the washing and spin-drying tub 5 and the outer tub 3 vibrate in the vertical and horizontal directions, the rotation direction, and the like due to the bias of the clothes. At this time, as in the case of washing,
b can freely move between the gaps between the fitting portions of the slider member 2a, the cylindrical body 2i, and the spring receiver 2f, and collides with the inner wall surface of each fitting portion when the vibration exceeds the gap. . Therefore, by providing cushioning materials 2k, 2l, 2m made of rubber or the like at the fitting portion, the hitting sound and impact force at the time of the collision are absorbed and transmitted to the outer tank 3 and the outer frame 1. , Noise during dehydration can also be reduced.

Generally, the through hole 2g and the cylindrical body 2
i and the sliding surface between the sliding member 2j and the slider member 2a
A lubricant such as grease is applied to the slider surface and the spherical surface 2h of the cylindrical body 2i in order to obtain smooth movement and prevent abrasion. In this embodiment, both ends of the suspension bar 2b are subjected to a process such as bending by press working for holding the slider member 2a, the spring receiver 2f, and the suspension bar 2b. This corresponds to the suspension rod 2b of the slider member 2a and the spring receiver 2f.
Since the object is to hold the object, the screw may be screwed using a nut or the like, and the original object can be achieved by using another means if the above-mentioned holding is possible.

FIG. 2 shows the cushioning material at all locations for the purpose of explanation, but providing at least one location has a slight noise reduction effect. In addition, cushioning material 2k,
There is no problem even if there is a gap between 21 and 2m and the hanging bar 2b. The cushioning members 2k, 2l, and 2m can be used as shown in FIGS. 6 and 7 even if the contact portions with the suspension rod 2b, the slider member 2a, the cylindrical body 2i, and the spring receiver 2f do not contact the entire surface. (For example, in the case of the cylindrical body 2i, 2n, 2
o, 2p, etc.), there is no problem even if the shape is such that a part of them contacts.

FIG. 3 is an enlarged view of a longitudinal section of a fitting portion between the slider member 2a and the suspension rod 2b of the vibration isolating mechanism 2 according to one embodiment of the present invention. FIG. 4 is an enlarged view of a longitudinal section of a fitting portion between the cylindrical body 2i and the suspension rod 2b of the vibration isolating mechanism 2 according to one embodiment of the present invention. FIG. 5 is an enlarged view of a longitudinal section of a fitting portion between the spring receiver 2f and the suspension rod 2b of the vibration isolating mechanism 2 according to one embodiment of the present invention.

In the description, the cushioning material 2 is provided as a separate member.
k, 21 and 2m are provided, but a slider member 2a, a cylindrical body 2i, and a hanging rod 2b of a moving body 2d made of synthetic resin.
The same noise reduction effect can be obtained even if foam fitting or the like is performed on the fitting portion to provide cushioning. And the hanging bar 2b
The same noise reduction effect can be obtained by providing a cushioning material. Further, since the vibration isolating mechanism 2 obtains a smooth movement, the cylindrical body 2i
Even if a lubricating layer is provided on the surface of the cushioning material 2l provided by a separate member or surface treatment, the noise reduction effect is not adversely affected.

As a result, the noise problem during the washing and spin-drying operation of the spin-drying washing machine is solved.

[0018]

According to the present invention, the cushioning material is provided at the fitting portion between the suspension bar and the slider member, the cylindrical body, and the moving body, so that the suspension bar vibrates in the gap between the respective portions, and the slider member, Even if the inner wall surface of the fitting portion of the cylindrical body and the moving body collides, the shock absorbing material can absorb the shock and reduce the transmission of the hitting sound and the vibration, thereby providing a low-noise dehydrating washing machine. Is what you can do.

[Brief description of the drawings]

FIG. 1A is a longitudinal sectional view of a basic configuration of one embodiment of the present invention, and FIG. 1B is a horizontal configuration (AA) of a basic configuration of one embodiment of the present invention.
Sectional view.

FIG. 2 is a longitudinal sectional view of a vibration isolating mechanism according to one embodiment of the present invention.

FIG. 3 is a partially enlarged view of an anti-vibration mechanism according to one embodiment of the present invention.

FIG. 4 is a partial vertical sectional view of a vibration isolating mechanism according to one embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of a vibration isolating mechanism according to one embodiment of the present invention.

FIG. 6 is a longitudinal sectional view of a vibration isolating mechanism according to one embodiment of the present invention.

FIG. 7 is a plan view cut along the line BB of FIG. 2;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outer frame, 2 ... Anti-vibration mechanism, 2a ... Slider member, 2b ...
Hanging rod, 2c: anti-vibration spring, 2d: moving body, 2e: spring seat, 2f: spring receiver, 2g: through hole, 2h: spherical surface, 2
i: cylindrical body, 2j: sliding member, 2k, 2l, 2m, 2
n, 2o, 2p: buffer material, 3: outer tank, 4: stirring blade, 5:
Washing and dewatering tub, 6 ... flange, 7 ... clutch, 8 ... motor, 9 ... mounting plate, 10 ... pulley / belt system, 11 ... fluid balancer.

Claims (1)

[Claims] 1. An outer frame, a washing and dewatering tub having a stirring blade at the bottom center, an outer tub containing the washing and dewatering tub, and a vibration isolating mechanism for supporting the outer tub on the outer frame. In the dehydration washing machine, the vibration isolating mechanism includes a tubular body fixed to the outer tub side and a sliding member that slides on an inner wall surface of the tubular body, and moves in the tubular body. A moving body, an elastic body provided inside the cylindrical body and elastically supporting the moving body on the cylindrical body, the moving body is attached to one end, and the other end is supported by the outer frame side. A suspension rod having a slider member attached thereto, and a cushioning material provided at a fitting portion between the cylindrical body and the suspension rod.