JPS6173697A - Dehydration washer - 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 Industrial Application The present invention relates to a single-tank centrifugal dewatering and washing machine for general household use, and is directed to an improvement of a clutch device that switches the drive between a dewatering/washing machine and a drive motor. Related.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Conventional Structure and Problems The structure of a conventional one-tank dehydrating washing machine will be explained with reference to FIGS. 1 and 2. 1 is the main body of the washing machine, 2 is a body upper frame that covers the upper opening of the main body 1, and electrical components are attached to the rear to control the mechanical movement. The lid 3 is arranged in the center of the body upper frame 2 so as to be openable and closable. Reference numeral 4 denotes a dehydration tank/washing machine (hereinafter abbreviated as dehydration tank) having a large number of dehydration holes in the side wall, a stirring blade 5 is provided at the bottom, and a balancer 6 is fixed to the top opening. Reference numeral 7 denotes an outer tank with a dehydration tank 4 inside, which stores washing water or drains it to a drain port 8 provided at the bottom. 9 is a motor installed below the outer tank 7;
The power is transmitted via a motor pulley 10 and a belt 11 to a mechanical case 12 forming a clutch mechanism, which rotates the stirring blades 5 during washing and the dewatering tank 4 during spin-drying. Motor 9. The mechanical case 12 is attached to a reinforcing plate 13, and the entire mechanism is suspended by a vibration isolator 14. Spherical receivers 16 are provided at the lower four corners of the outer tank 7,
The vibration isolator 14 is attached to the suspension 16 on this spherical receiver 16.
It is slidably attached to the upper part of the main body 1 via. Reference numeral 17 denotes a drain cock connected to a drain port 8 provided at the bottom of the outer tank 7. A drain valve is installed inside the drain cock, and when the washing water is to be drained, it is opened and guided to the drain hose 18 to the outside of the machine. Let it drain.

The details of the clutch device section will be explained with reference to FIG. The dehydration tank 4 is fixed by a D flange 19, and the dehydration shaft A
20, and a brake wheel 21 is press-fitted into this dehydration shaft 2o. Also, dehydration shaft B22
are similarly press-fitted coaxially to the brake wheel 21, and a bearing 23 is attached to each dehydration shaft A, B20, 22.
It is rotatably supported on the shaft. brake wheel 21
A reduction gear is set inside the washing shaft 9 to reduce the speed of the washing shaft 24. These dehydration shaft man, B, and the brake wheel are integrated.

Band brake 25 on the outer circumference of V21
is provided, and a brake shoe 26 is pasted on the inner peripheral surface. During dewatering, the pre-kin knee 26 is in a released non-contact state with respect to the pre-kin knee/L' 21, and is reversely operated via the brake lever 27 by opening and closing of the electromagnetic magnet so that it comes into contact with the pre-kin knee/L'21 when stopped.

Reference numeral 28 denotes a reverse rotation prevention spring, whose purpose is to prevent rotation in the opposite direction to the dehydration rotation direction. 29 is Motor Boo'J10. The impeller pulley is used to transmit the power transmitted from the belt 11 to the mechanical case 12.
It is connected to L'30 and the washing shaft 24. 31
is the clutch spring and dehydration shaft B22 and dehydration meta/L/
30, and this clutch spring 3
A clutch boss 32 is fitted in which the lower end portion 31 & of the clutch boss 32 is interlocked with each other. The clutch boss 32 has a plurality of pawls 32& that are equally divided around the circumference, and when washing, the thalassochrome pawl 34 at the tip of the thalasso-tire lever 33 is connected to the pawl 321 of the clutch boss 32.
L is pushed in to release the bias of the clutch spring 31 and rotate only the shaft 24 to rotate only the stirring blade 5. During dewatering, the electromagnetic magnet is turned on, the clutch lever 33 is released, the clutch spring 31 is biased, the dehydration meta/L' 30 is connected to the dehydration shaft B22, and the dehydration tank 4 is rotationally driven. .

With the above-mentioned configuration, when purchasing a clutch machine, the clutch spring 31 is loosened during washing to become in play with the dehydration meta/l/30, and the driving force to the dehydration shaft B22 is released.
When dehydrating, tighten the clutch spring 31 and remove the dehydrating meta/
It is in a locked state with I/3o and interlocks the driving force to the dehydration shaft B22 to rotate the dehydration tank 4.

During dewatering, the clutch boss 32 is connected to the clutch spring 31.
Since the clutch boss 32 rotates at the same high speed as the clutch spring 31, the clutch boss 32 may come into contact with the outer circumferential surface of the clutch spring 31, causing abnormal noise, and the situation may become extremely aggravated, especially when the load clothing is unbalanced. Due to wear and the like, problems such as a reduction in clutch spring function due to abrasion powder entering the winding direction gap of the clutch spring 31 are likely to occur. Furthermore, if the clutch post 32 is unstable during spinning, when switching from spinning to washing,
The pawl 32 of the clutch boss 32 by the Taranochime 34 of the Taranochi lever 33? When pushing L, clutch boss 3
2 is relative to the axis of the dehydration shaft B22 and dehydration meta 1V30,
If the center does not stick out, variations in the amount of movement of the claw 32% are likely to occur, which is likely to cause an abnormality that deteriorates the intended function of releasing the bias of the thalassotis ring 31.

OBJECTS OF THE INVENTION The present invention aims to prevent such conventional problems, improve the durability of the clutch machine groove, and prevent abnormal vibrations of the clutch boss.

Structure of the Invention The present invention provides an elastic buffer in the gap between the inner wall of the clutch boss and the outer circumferential surface of the clutch spring, and the buffer is fixedly attached to a part of the inner wall of the clutch spring.
Multiple units are arranged in the longitudinal direction of the rotation axis, and abnormal noises occur during high-speed rotation between the clutch spring and clutch post.
The aim is to prevent vibration noise, improve clutch function during dewatering and washing, and reduce clutch claw clicking noise.

DESCRIPTION OF THE EMBODIMENTS The embodiment will be described below with reference to enlarged views of the clutch mechanism shown in FIGS. 3 and 4. Note that the same parts as in FIGS. 1 and 2 are given the same reference numerals, and explanations thereof are omitted.

In the figure, the power transmitted from the belt 11 is transmitted to the conveyor belt 29 and the gear shaft 35. It is driven by the dehydration metal 3o. The gear shaft 35 and the impeller boot lee 29 are fixed together by a nut 36.

37 and 38 are sintered metals that are press-fitted inside the dehydration shaft B22 and support the gear shaft 35. The clutch spring 31 is wound around both the dehydration shaft B22 and the dehydration shaft V30, and the lower end 31 of this clutch spring 31
A Franch Boss 32 that interlocks & is fitted.

The lower end of the clutch post 32 is provided with a fitting groove 32b into which the lower end 312L of the clutch spring is fitted, and the clutch spring 31 and the clutch boss 32 are interlocked with each other by the lower end 31& and the fitting groove 32b. The clutch boss 32 is integrally formed with a plurality of equally divided pawls 32& around its periphery.

A plurality of ribs 32C are provided on the inner wall of the clutch post 32 on the axis, and a separate elastic buffer 39 is provided between the ribs 32C. The buffer body 39 is a flange boss 32
They are fixed to the inner wall of the rotary shaft, and a plurality of them are arranged circumferentially around the rotation axis. Further, the buffer body 39 has a thickness y longer than one dimension of the rib 320, and has a structure to buffer the clutch spring 32.

When washing, use the clutch claw 34 at the tip of the clutch lever 33.
kicks in the claw 32 & of the clutch post to release the bias of the clutch spring, and the gear shaft 35 moves the reduction gear ~,
The washing shaft 24 is driven to rotate and only the stirring blade 5 is rotated. During dehydration, the electromagnetic magnet is turned on and the clutch lever 33 is opened in the direction of arrow Z to apply the force to the clutch spring 31, thereby removing the dehydration meta/l/30 and the dehydration shaft B2.
2 to rotate the dehydration tank.

Clutch spring 31 and Franch boss 32 during dehydration
When the clutch springs 31 and the inner walls of the clutch bosses 32 rotate in the same manner at high speed, the buffer body 39 buffers abnormal noises caused by contact between the clutch springs 31 and the inner walls of the clutch bosses 32, even under adverse conditions such as an unbalanced condition of the load clothing, thereby eliminating abnormal noises and vibrations. In addition, abnormal vibrations at the resonance frequency can be prevented, and durability can be improved by maintaining clutch spring functionality by preventing flank boss abrasion powder from entering the winding gap of the clutch spring 31. Furthermore, when switching from dehydration to washing or rinsing, the clutch claw 34 is the claw 32g of the clutch post 32! The impact sound entering the L can be reduced by the sound absorption of the buffer body 39. Also,
Since the buffer body 39 works to maintain the flange boss 32 in the center with respect to the shaft center, the pawl 32a of the clutch post 32 is always moved efficiently, so that the clutch switching function can be stabilized without any trouble.

Effects of the Invention As described above, the present invention provides a MW body between the flange boss and the clutch spring. prevention, and prevention of abnormal vibrations at the time of resonance frequency vibration.

a. Improved durability by maintaining clutch spring functionality.

It is possible to reduce the impact noise of the clutch claw when switching from dehydration to washing or rinsing.

(2) The clutch switching function can be stabilized without any problems.

It has the following effects.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view of a conventional single-tub dehydrating washing machine;
3 is an enlarged cross-sectional view of the main part of a clutch mechanism showing an embodiment of the present invention, and FIG. 4 is an enlarged sectional view of the main part. 31...Clutch spring, 32...
・Kura Nochibos, 39... slow gradual body. Name of the person buried: Toshi Nakao (1 person) Figure 1 Figure 2 Figure 3

Claims (2)

[Claims] (1) A dehydration/washing tub and a stirring blade installed at the bottom of the tub,
It is equipped with a motor that drives these stirring blades and a dewatering/washing tub, and a clutch device that switches the drive between the two. A dehydrating washing machine with an elastic shock absorber installed in the gap between the surface and the surface. (2) The buffer body is fixed to the inner wall of the clutch boss, and a plurality of buffer bodies are arranged circumferentially around the rotation axis.
Dehydrating washing machine as described in section.