KR950004275B1 - Washing/dehydration transmission structure - Google Patents

Abstract

A clutch device for changing washing/dewatering cycle of automatic washing machine comprises a coupling means arranged between a pulley (100) and a reduction gear means (104), and a clutch lever (102) having a lifting arm (1) and a lowering arm (2). The coupling means includes a hollow shaft (111) of the gear case and a ring member (3) movably inserted in the pulley shaft. Upper coupling teeth (4) are formed at the lower end of the hollow shaft, and lower coupling teeth (30) formed at the upper portion of the ring member. On the inside wall of the ring member, a stopper pin (32) with a spring (31) is prepared to keep the coupled position of the coupling teeth, and a parallel key hole is also prepared to receive a shaft key (6) which allows the ring member to move up & down and to transmit the revolution.

Description

Washing / Dewatering Stroke Conversion Structure of Washing Machine Clutch

1 is a partial cutaway view showing a washing machine clutch to which the present invention is applied.

2 is a plan view of the clutch ring in FIG.

3 is a front view showing the relationship between the clutch ring, the lever and the rotating shaft according to the present invention.

4 is a partial cutaway view showing a washing machine clutch to which a conventional washing / dehydrating stroke converting structure is applied.

* Explanation of symbols for the main parts of the drawings

1: rising arm, 2: descending arm,

3: clutch ring, 30: coupling part,

31: spring, 32: stopper,

33: main part, 34: home part,

35: spiral portion, 36: downward portion,

37: protrusion, 4: uneven portion,

5: home, 8: tall.

The present invention relates to a washing / dewatering stroke converting structure of a sewage machine clutch. The washing / dewatering stroke converting structure of the washing machine clutch which can prevent the washing / dewatering capacity from falling.

In general, the washing machine is divided into a semi-automatic washing machine in which the washing tank and the dehydration tank are operated separately and the washing and dehydration tanks are integrally formed so that washing and dehydration can be performed together in one tank. In order to convert the rotational force and the rotational speed at the time of washing | cleaning and dehydration, it used through the normal clutch between the motor and the tank.

The clutch reduces the rotational speed of the motor during washing and increases the rotational force so that washing is smooth. When dehydrating, the clutch is connected to the tub as it is to obtain the rotational speed necessary for dehydration. As shown in FIG. 4, the pulley 100 connected to the motor (not shown) and the normal belt (not shown) are fixed to one end of the rotation shaft 101, and the conversion lever 102 and the band 103 are fixed. Is connected to the deceleration unit 104 alone, and the deceleration unit 104 is embedded in the housing 105.

Here, the rotary shaft 101 defines a clutch spring 107 in order to operate the clutch spring 107 and the clutch spring 107 surrounding the boss 106 in contact with the rotary shaft 101 and the clutch spring 107 and In addition to operating the sleeve 108 and the arm 102 is connected to the lever 102, when washing the band 103 connected to the lever 109 is the drum ( In addition to tightening the 110, the sleeve 108 is defined by an arm 109 connected to the lever 102, releasing the clutch spring 107, thereby displacing the boss 106 and the clutch spring 107 and the drum 110. ) Is coupled to the gear case 111 and the boss 106 is rotated by the rotation shaft 101 is reduced to about 1: 5: 5 through the reduction unit 104 is transmitted to the output shaft 112.

As mentioned above. The washing stroke is performed by rotating the jaw (not shown) by the rotation of the trapped output shaft 112. In order to convert the washing stroke into the dehydration stroke, the lever 102 is operated by an apparatus (not shown) and the drum ( Separate band 103 from 110.

When the arm 109 connected to the lever 102 rotates the sleeve 108 in a predetermined direction, the clutch spring 107 connected to the sleeve 108 is tightened. The boss 106 and the gear case 111 are squeezed by the spring 107 so that the rotation of the rotation side 101 is transferred to the external drum 110 of the reduction unit 104 by the boss 106 and the gear case 111. By transmitting the dehydration flange 113 connected to the drum 110 without deceleration it is to rotate the bath at high speed suitable for dewatering.

However, as described above, the wash / dewatering stroke conversion includes a boss 106 installed on the outer periphery of the rotary shaft 101, a gear case 111, and a clutch spring 107 intermittently crimping it and a lever 102 for operating the same. The use of the structure is that as the elasticity of the clutch spring 107 is lowered as the period of use decreases, the rotational force transmitted to the seed boss 106 and the gear case 111 is reduced by the slip phenomenon, which not only lowers the driving force of the jaw. There is a problem that the cost of the product is high because the washing unit price of one clutch spring 107.

Accordingly, an object of the present invention is to use the washing / dehydration conversion structure for converting the washing / dehydration stroke by combining the boss and the gear case with a clutch spring connected to the sleeve in the washing / dehydration stroke conversion structure of the washing machine clutch for a long time The present invention provides a washing / dehydrating stroke converting structure of a washing machine clutch that can prevent slip phenomenon and a decrease in driving force due to wear of a clutch spring and a decrease in elastic force.

In order to realize the above object, the present invention forms a coupling portion for forming an uneven portion at the end of the gear case and correspondingly engaging and separating the same, and inserting a clutch ring having a helical side line into the rotating shaft and applying a spring to the clutch ring. The stopper is inserted and installed, and a plurality of grooves are formed on the rotating shaft of the corresponding part so that the position of the clutch ring can be changed step by step, and the clutch ring can be lifted by the lifting and lowering arm formed on the lever. It features.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a partial cross-sectional view showing a clutch of a washing machine to which the present invention is applied, in which a drum 110 having a reduction gear (not shown) is installed in a housing 105, and a band 103 connected to a lever 102. ), The lifting arm (1) and the lower arm (2) are formed on the lever (102) and the clutch ring (3) inserted into the rotating arm (101) is in close contact with the lever (102). In addition, the clutch ring 3 and the gear case 111 are spaced apart to correspond to each other, as well as the output shaft 112 and the dehydrating flange on the opposite side to the pulley 100 fixed to the end of the rotation shaft 101 ( 113 is protruding.

Here, an uneven portion 4 is formed at the end of the gear case 111 and a coupling portion 30 corresponding thereto is formed on the upper portion of the clutch ring 3, and a spring is formed inside the clutch ring 3. A stopper 32, which is supported by the 31 and elastically protrudes, is inserted and seated in one of a plurality of grooves 5 continuously formed on the rotation shaft 101, and is usually fixed on one side by fixing the clutch ring 3 described above. The key 6 is inserted.

Washing / dehydration stroke conversion structure of the bar-like configuration described above, since the gear case 111 and the clutch ring 3 are separated during washing, the rotational force transmitted from the pulley 100 is transferred to the drum 110 through the rotating shaft 101. It is transmitted to a speed reducer (not shown) installed in the interior of the output shaft 112 is rotated by a deceleration of 1: 5: 5 to rotate the jaw (not shown) connected thereto at low speed.

At this time, the drum 110 is compressed by the band 103 connected to the lever 102 so that the drum is not rotated.

In addition, upon dehydration after washing, the lever 102 is operated by a device (not shown) to lift the band 103 wound around the drum 110 and the lifting arm 1 connected to the lever 102 is By operating in the same direction as the lever 102, the clutch ring 3 is raised to engage the engaging portion 30 of the clutch ring 3 and the uneven portion 4 of the gear case 111, and the rotating shaft by the above coupling. At the same time as the rotation of the 101, the gear case 111 is rotated, which rotates the dehydration stretch 113 connected to the drum 110 at the same speed as the rotation shaft 101.

Here, the clutch ring 3, which is raised when the clutch ring 3 is raised, is coupled to the groove 5 and the stripper 32 continuously formed on the rotation shaft 101 at a predetermined position so that the coupling can be maintained. do.

At this time, as shown in FIG. 2, the coupling part 30 is formed in the upper portion of the clutch ring 3 and the recessed part 33 and the groove part 34 are continuously transmitted to the gear case 111 coupled thereto. It is possible to improve the rotational force.

Further, ascending of the clutch ring 3 by the lifting arm 1 forms a spiral portion 35 on the outer periphery of the clutch ring 3, as shown in FIG. 3, and the number of the lifting arms 1, The upper and lower arms 36 formed in the spiral part 35 are lifted by the upper and lower arm portions 1 in the drawing along the lower part of the spiral part 35 during the horizontal movement. 4) and the coupling portion 30 of the click ring (3).

Then, when the lever 102 is operated to operate the washing stroke again after the dehydration stroke is completed, the rising and lowering arms 1 and 2 which are moved to the left in the drawing are moved to the right and the lowering arm 2 As the) strikes the protrusion 37 formed on the upper side of the clutch ring 3, the clutch ring 3 is lowered downward.

At this time, the stopper 32 inserted into the groove 5 continuously formed on the rotating shaft 101 is elastically moved by the pressure side of the spring 31 to move downward of the groove 5 so as to be fixed. The gear case 111 and the clutch ring 3 are possibly separated.

As described above, the present invention is configured to convert the washing / dehydration stroke by engaging and separating the gear case by elevating the cool clutch ring inserted into the rotary shaft by the stopper and being supported by the stopper as the lifting arm and the lower arm which are connected to the lever. Due to the wear of the clutch spring and the decrease of the elastic force, it is possible to prevent the reduction of rotational force transmitted to the output shaft and the dehydration flange, and to prevent the price increase of the product due to the high manufacturing cost of the clutch spring.

Claims (1)

The lever 108 connected to the reduction drum 110 and the band 103, the Iim 109 formed therein, and the arm 109 are used to move the sleeve 108 to the inside of the sleeve 108. The washing / dehydrating stroke converting structure of the washing machine clutch configured to operate the washing and dehydrating stroke by coupling and separating the boss 106 and the gear case 111 wrapped around the rotating shaft 101 by the fixed clutch spring 107. In this case, the groove 5 corresponding to the stopper 32 is continuously formed in the rotation shaft 101, and the uneven portion 4 in close contact with the clutch ring 3 is formed at the end of the gear case 111. In addition, the coupling part 30 which is detached from the concave-convex part 4 is formed at the upper end, and the spiral part 35 having the downward part 36 formed on the outer circumference thereof is formed and descends on the upper part of the spiral part 35. The clutch ring 3 having the protrusion 37 striking at the time of movement of the arm 2 is inserted into the rotation shaft 101, and the inner side of the clutch rung 1 described above. Inserting the stopper 32 supported by the spring 31 to move step by step into the groove (5) continuously formed on the rotation axis 101, and the rising arm (1) and the lower arm (2) to the lever (102) In the washing position of the clutch ring (3), the lower arm (2) is in close contact with the lower arm (2) and forms a close connection when dewatering. Washing / dewatering stroke converting structure of the washing machine clutch, characterized in that the lower arm (2) is formed to lower the clutch ring (3).