JPH0584389A - Drum type washing machine - Google Patents

Abstract

PURPOSE:To suppress the vibration of a water tub by generating the damping force in the longitudinal direction in a drum type washing machine. CONSTITUTION:A water tub 20 suspended and supported on a washing machine main body 21 by springs 22 and having a bearing 28, a drum 26 having a rotary shaft 23 supported on the bearing 28 and rotated in the water tub 20 centering on the rotary shaft 23, a drum pulley 29 fitted to the rotary shaft 23 and arranged on the outside of the water tub 20, a belt 30 suspended between the drum pulley 29 and the motor pulley 33 of a washing motor 31, and bellows 36 fitted at the front face of the washing tub 20 and holding the watertightness with the washing machine main body 21 are provided. Dampers 27, 27 arranged at an angle theta between the lower section of the water tub 20 and the washing machine main body 21 are longitudinally tilted and fitted between them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing machine which is used in general households, in which clothes are washed by rolling in a drum and dehydration is carried out by high speed rotation of the drum.

[0002]

2. Description of the Related Art A conventional drum type washing machine having a structure as shown in FIG. 4 is known. Hereinafter, referring to FIG. 4, reference numeral 1 denotes a washing machine body, and the washing machine body 1
A water tank 3 supported by a spring 2 therein, and a drum 6 having an opening on the front surface, a rotary shaft 4 on the rear surface, and a water passage hole 5 on the side surface.
Is provided. The rotating shaft 4 is supported by a bearing 7 provided on the rear surface of the water tank 3. Also, the rotating shaft 4
A pulley 10 is attached to an end portion of the belt, and a belt 9 is hung between the pulley 10 and a pulley 8b attached to a shaft 8a of the washing motor 8. Reference numeral 11 denotes a damper, one end of which is supported by the lower end of the water tub 3 and the other end of which is supported by the lower end of the washing machine body 1. A bellows 12 is provided on the front surface of the water tub 3 for maintaining water tightness with the washing machine body 1, and is fitted with a tapered lid 13.

[0003]

In such a structure, when washing and rinsing are finished and dehydration is performed,
The drum 6 is rotated with the clothes biased to the lower part of the drum 6. At this time, the water tub 3 vibrates due to the eccentric load of the clothes, and the vibration of the water tub 3 is transmitted to the washing machine main body 1 via the spring 2 and the damper 11, and the washing machine main body 1
Vibrate. In order to suppress the large vibration of the water tank 3 at the time of starting, the damping force of the damper 11 is set to be hard, but when the eccentric load is large, the vibration of the water tank 3 becomes large and tends to vibrate in the front-back direction. .. The vibration in the front-back direction is because the damping force of the damper 11 does not work in the front-rear direction, and therefore appears as a value larger than the vibration in the left-right and up-down directions. As a result, the water tub 3 collides with the washing machine body 1 or the bellows 12 is excessively loaded, which causes an increase in noise and damage to the bellows 12.

The present invention solves such a problem, and an object thereof is to generate a damping force also in the front-rear direction to suppress the vibration of the water tank.

[0005]

In order to solve this problem, a drum type washing machine according to the present invention comprises a water tank provided with a bearing, which is suspended and supported by a spring in a washing machine body, and a rotary shaft supported by the bearing. A drum that rotates in a water tub about this rotation shaft, a pulley that is attached to the rotation shaft and is disposed outside the water tub, and a belt that is hung between the pulley and the pulley of the washing motor. And a bellows which is attached to the front of the water tub and maintains watertightness with the main body of the washing machine, and further, a plurality of dampers which are attached while being inclined in the front-rear direction between the lower part of the water tub and the main body of the washing machine. I have.

Further, the drum type washing machine of the present invention has a water tank in which a bearing is hung and supported by a spring in the main body of the washing machine, and a rotating shaft supported by the bearing is provided in the water tank. , A pulley mounted on the rotating shaft and arranged outside the water tub, a belt hung between the pulley and a pulley of a washing motor, and a washing machine mounted on the front of the water tub. A bellows for maintaining water tightness with the main body and a damper provided between the lower part of the water tub and the main body of the washing machine are provided, and dampers are respectively provided between the front and rear surfaces of the water tub and the main body of the washing machine. It is attached.

[0007]

With this construction, the drum type washing machine tends to vibrate in the front-back direction during dehydration. This vibration in the front-rear direction can be suppressed by generating a damping force in the front-rear direction by the damper that is attached while being inclined in the front-rear direction. Further, the dampers respectively mounted between the front and rear surfaces of the water tub and the main body of the washing machine can also generate a damping force in the front-rear direction to suppress vibration.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. A first embodiment will be described with reference to FIGS. 1 and 2. Reference numeral 20 is a water tank suspended from a washing machine main body 21 by a plurality of springs 22 in a semi-constrained manner.
It is rotatably supported by the rotary shaft 23 inside the
And a drum 26 having a front opening 25.
Further, 27 is two dampers, one end of which is supported on the bottom of the water tub 20 and the other end of which is supported by the washing machine main body 21, one damper 27 being tilted forward and the other damper 27 being tilted rearward. An angle θ is provided between them. Further, the rotating shaft 23 of the drum 26 is supported by a bearing 28, and a drum pulley 29 is attached to the tip of the rotating shaft 23 projecting from the bearing 28, and 30 is the drum pulley 29 and the washing motor 31.
Is a belt hung between a motor pulley 33 attached to a shaft 32 of the. Reference numeral 34 is a lid for opening and closing the clothing insertion port 35. 36 has a water tank 20 at one end and a washing machine main body 21 at the other end.
It is a bellows fixed to.

Next, the operation of the above configuration will be described. When trying to dehydrate after washing and rinsing,
The drum 26 is rotated with the clothes biased to the lower part of the drum 26. At this time, the water tank 20 vibrates due to the eccentric load due to the clothes, and the vibration of the water tank 20 is transmitted to the washing machine main body 21 via the spring 22 and the damper 27, and the washing machine main body 21
Vibrate. In order to suppress the large vibration of the water tank 20 at the time of starting, the damping force of the damper 27 is set to be hard, but when the eccentric load is large, the vibration of the water tank 20 becomes large and tends to vibrate in the front-back direction. .. The vibration in the front-back direction can be suppressed by generating a damping force also in the front-back direction by the damper 27 attached so as to be inclined in the front-back direction.

Next, a second embodiment will be described with reference to FIG. In this embodiment, one vertically oriented damper 27 is attached between the bottom of the water tank 20 and the washing machine body 21,
In the vicinity of the upper end of the water tank 20, the front surface of the water tank 20 and the water tank
Dampers 37 and 38 directed in the front-rear direction are attached between the rear surface of 20 and the main body 21 of the washing machine. The other structure is the same as that of the first embodiment.

Next, the operation of the above configuration will be described. When trying to dehydrate after washing and rinsing,
The drum 26 is rotated with the clothes biased to the lower part of the drum 26. At this time, the water tank 20 vibrates due to the eccentric load due to the clothes, and the vibration of the water tank 20 is transmitted to the washing machine main body 21 via the spring 22 and the damper 27, and the washing machine main body 21
Vibrate. In order to suppress the large vibration of the water tank 20 at the time of starting, the damping force of the damper 27 is set to be hard, but when the eccentric load is large, the vibration of the water tank 20 becomes large and tends to vibrate in the front-back direction. .. The vibration in the front-rear direction is caused by the dampers 37, 38 attached to the main body 21 of the washing machine at one end and the front and rear surfaces of the water tub 20 at the other end, respectively.
This can be suppressed by generating a damping force in the front-back direction.

[0012]

As described above, the drum type washing machine of the present invention can effectively suppress the vibration of the water tank during dehydration, prevent the bellows from being excessively loaded, and improve the durability of the bellows. it can.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a drum type washing machine according to a first exemplary embodiment of the present invention.

FIG. 2 is a transverse sectional view of the same.

FIG. 3 is a vertical sectional view of a drum type washing machine according to a second embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of a conventional drum type washing machine.

[Explanation of symbols]

 20 Water tank 21 Washing machine body 22 Spring 23 Rotating shaft 26 Drum 27 Damper 28 Bearing 29 Drum pulley 30 Belt 31 Washing motor 33 Motor pulley 36 Bellows

Claims (2)

[Claims] 1. A water tank in which a washing machine body is suspended and supported by a spring and which is provided with a bearing, and a drum which has a rotating shaft supported by the bearing and rotates in the water tank around the rotating shaft.
A pulley attached to the rotary shaft and arranged outside the water tub, a belt hung between the pulley and a pulley of the washing motor, and a watertightness with a washing machine body attached to the front of the water tub. A drum-type washing machine comprising: a bellows for holding; and a plurality of dampers mounted between the lower portion of the water tub and the main body of the washing machine while being inclined in the front-rear direction. 2. A water tank having a bearing which is suspended and supported by a spring in a washing machine body, and a drum which has a rotating shaft supported by the bearing and rotates in the water tank around the rotating shaft.
A pulley attached to the rotary shaft and arranged outside the water tub, a belt hung between the pulley and a pulley of the washing motor, and a watertightness with a washing machine body attached to the front of the water tub. A drum-type washing machine having a bellows for holding and a damper provided between the lower part of the water tub and the main body of the washing machine, and a damper installed between the front and rear surfaces of the water tub and the main body of the washing machine. ..