KR0132189Y1 - A driving gear of a fully-automated washing machine - Google Patents

Abstract

The present invention not only reduces the installation space by simplifying the structure of the driving mechanism of the automatic washing machine, but also effectively performs the clutching and declutching functions of the washing machine and the dehydrator, thereby greatly improving the efficiency and reliability of the automatic washing machine. It is an improvement.

To this end, the present invention provides a first clutch (1) having a first ratchet (6a) and a second ratchet (6b) which are inserted into the motor shaft (3) installed through the outer tub (1) and the inner tub (4) and are press-fitted. 6) and a second clutch 7 installed in the inner tub 4 and inserted into the motor shaft 3 and having a ratchet groove 7a spaced and connected to the second ratchet 6b during washing and dehydration. The sealing member 9 is inserted into the guide jaw 8 of the outer tub 1 and prevents water from flowing from the inner tub 4 to the outer tub 1 during washing, and the guide jaw 8 and the second. It is a driving device of a fully automatic washing machine composed of an elastic member 11 inserted into the motor shaft (3) between the support jaw 10 formed in the clutch 7 to impart elastic force during washing and dehydration.

Description

Drive of fully automatic washing machine

1 is a longitudinal sectional view showing a driving unit of a conventional fully automatic washing machine.

2 is an enlarged longitudinal sectional view of the clutch of FIG.

3 is an operating state diagram of the present invention,

(a) is a longitudinal cross-sectional view which shows the state at the time of dehydration.

(b) is a longitudinal cross-sectional view which shows the state at the time of washing.

Figure 4 is a partial perspective view showing the present invention.

* Explanation of symbols for main parts of the drawings

1: outer tank 3: motor shaft

4: inner tank 5: rotor

6: first clutch 6a: first ratchet

6b: second ratchet 5a, 6c, 7b: drain hole

7: second clutch 7a: ratchet groove

8: guide jaw 9: sealing member

10: support jaw 11: elastic member

12: drain hose 12a: first hose

12b: hose 2 13: drain valve

The present invention relates to a driving apparatus of a fully automatic washing machine, and more particularly, to simplify the structure of the clutch installed in the fully automatic washing machine, and to smoothly transfer power to the rotor and the dehydrating tank during washing and dehydration. It is.

In the conventional fully automatic washing machine, as shown in FIG. 1, a washing / drying dehydration tank 4a is rotatably installed inside the outer tub 1a, and a rotor 15b is disposed at the lower part of the washing / drying dehydration tank 4a. The dewatering shaft 15 and the washing shaft 16 of the clutch 14 installed on the bottom surface of the outer tub 1a are fastened to the dewatering tank 4a and the rotor 5b, respectively. The motor pulley 17 and the V-belt pulley 18 are respectively installed in the motor 2a and the clutch 14 provided on one side of the bottom face of (1a) so that the V-belt 19 is wound and transmitted.

In addition, the clutch 14 described above, as shown in FIG. 2, the spring block 21 is installed in the lower portion of the gear shaft 20 that receives power directly from the V-belt pulley 18 of the clutch 14. The outer peripheral surface of the lower dehydration shaft 15a on the upper side of the spring block 21 is integrally formed with the upper dehydration shaft 15 and the gear drum 22 for the brake drum, and the dehydration shaft when washing the rotational driving force of the motor 2a. When dewatering without transmitting to the first clutch spring 23 is transmitted to the dehydration shaft is installed.

In addition, a clutch boss 25 having a sawtooth wave 24 formed on a surface thereof is provided on an outer circumferential surface of the first clutch spring 23, and a side portion of the outer tub 1a to engage the teeth 24 of the clutch boss 25. Cam 27 is rotatably installed at the lower end of the lever 26 that is linked to the drain valve actuation solenoid (not shown) installed in the upper part of the gear housing 22, the upper part of the gear housing 22 One-way clutch 28 is installed to prevent the reverse rotation.

In addition, the gear housing 22 is provided with a planetary gear 29 for decelerating and transferring the power of the gear shaft 20 to the washing shaft 16 during washing, and the brake on the outer circumferential surface of the brake drum combined gear housing 22 The band 30 is mounted and comprised.

In general, the driving device of the automatic washing machine is a washing mode in which the dehydration tank 4a is stopped as shown in FIG. 1 and the laundry is washed by left and right stirring of the rotor 5b, and the dehydration tank 4a and the rotor 5b. ) Is divided into dehydration mode, which rotates at high speed at the same speed.

Therefore, when washing laundry in a conventional fully automatic washing machine, as shown in FIGS. 1 to 2, the first clutch spring receives the forward rotational power of the motor 2a transmitted to the clutch 14 as the V-belt 19. Since the 23 is the winding direction, the spring block 21 should be transferred to the lower dehydration shaft 15, but the toothed portion 124 of the clutch boss 25 installed at the outer circumference of the first clutch spring 23 is provided. The cam 27 is engaged and pushed to prevent the first clutch spring 23 from being wound to prevent power transmission to the dewatering shaft 15.

Therefore, the rotational power transmitted to the gear shaft 20 is decelerated through the planetary gear 29 in the brake drum combined gear housing 22 and transmitted to the washing shaft 16, and is fixed on the washing shaft 16. Washing is performed by rotating the former 5b.

In addition, since the reverse rotational power of the motor 2a is the direction in which the first clutch spring 23 is released, the rotational power of the gear shaft 20 cannot be transmitted to the dehydration shaft 15 at this time. It is transmitted to the gear washing shaft 16, the washing by rotating the rotor (5b) fixed on the washing shaft (16).

In addition, a reaction rotation torque is generated in the gear housing 22 when decelerating through the planetary gear 29. The one-way clutch 28 prevents reverse rotation of the dewatering shaft 15 by the reaction rotation torque, The rotation of the dehydration shaft 15 is prevented by the brake band 30 mounted on the outer circumferential surface of the brake drum combined gear housing 22 at a predetermined pressure.

In addition, when the laundry is dewatered by the automatic washing machine, since the rotational power of the motor 2a transmitted to the clutch 14 as the V-belt 19 always rotates in the forward direction, the first clutch spring 23 is wound in the winding direction. It is operated to be in close contact between the first clutch spring 23 and the spring block 21, the valve operation solenoid is turned on to pull the brake lever 31, the cam of the lever 26 interlocked with the brake lever 31 27 is disengaged from the toothed portion 24 of the clutch boss 25.

At the same time, the brake band 30 is separated from the outer circumferential surface of the gear housing 22, so that the rotational power of the spring block 21 is integral with the gear housing 22 and the gear housing 22. ) To dehydrate the laundry by rotating at high speed in one direction. Then, when dehydration is completed or the dehydration process is forcibly stopped during dewatering, when the drain valve actuating solenoid is turned off and the lever 26 is released, the cam 27 is provided with the teeth 24 of the clutch boss 25. Caught in between.

At the same time, as the brake band 30 compresses the outer circumferential surface of the gear housing 22 to be switched to the washing mode, the rotation of the gear housing 22 serving as the brake drum is stopped, so that the gear housing 22 and the upper detachment are stopped. The dehydration tank 4a which is fastened through the contraction 15 is also stopped.

However, the driving apparatus of the conventional fully automatic washing machine has a structure in which the motor 2a and the clutch 14 are separately installed so that the power of the motor 2a is transmitted to the clutch 14 through the V-belt 19. Not only is the structure of the clutch 14 having the function of selectively controlling the rotational power during washing and dehydration and the function of reducing the speed, but also the complexity of the power transmission of the rotational power by the V-belt 19. There was a problem such that a lot of loss occurs.

The present invention is to solve the above problems, the present invention can not only simplify the structure of the drive unit installed in the automatic washing machine, but also to smoothly transfer power to the rotor and the dehydration tank during washing and dehydration. It is an object of the present invention to provide a drive of a fully automatic washing machine.

The present invention for achieving the above object is the first clutch and the first latch and the second ratchet is inserted into the motor shaft installed through the outer tub and the inner tub is fixed to the press, and is installed in the inner tub is inserted into the motor shaft A second clutch formed with a ratchet groove spaced apart from and connected to the second ratchet during washing and dehydration, a sealing member inserted into the guide jaw of the outer tub and preventing water from leaking from the inner tub to the outer tub when washing, and the guide jaw; And a driving device of an automatic washing machine including an elastic member inserted into a motor shaft between the support jaw formed in the second clutch and providing elastic force during washing and dehydration.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4 of the accompanying drawings.

3 is an operating state diagram of the present invention, Figure 4 is a partial perspective view showing the present invention, the motor 2 for transmitting power to the lower center of the outer tank 1 of the automatic washing machine is installed, the center of the motor (2) The motor shaft 3 is installed through the center of the outer tank 1 and the inner tank 4, the rotor 5 having a drain hole 5a formed on the circumferential surface at the upper end of the motor shaft 3 in the inner tank 4 ) And a first clutch 6 having a first ratchet 6a having a first ratchet 6a connected to the motor shaft 3 on a central inner circumferential surface thereof is inserted into the upper part of the motor shaft 3 below the rotor 5. The second ratchet 6b and the drain hole 6c are formed on the end circumferential surface and the circumferential surface of the first clutch 6.

In addition, a second clutch 7 having a ratchet groove 7a spaced and connected to the second ratchet 6b of the first clutch 6 when washing and dehydrating the motor shaft 3 in the lower center of the inner tank 4. Is inserted, a drain hole 7b corresponding to the drain hole 6c of the first clutch 6 is formed in the inner circumferential surface of the ratchet groove 7a, and the guide jaw 8 is formed at the center of the outer tub 1. This protrusion is formed in the circumferential surface of the guide jaw (8) is inserted into the sealing member (9) to prevent water from flowing out of the inner tank (4) to the outer tank (1), the guide jaw (8) and the second An elastic member 11 is inserted into the motor shaft 3 between the support jaws 10 formed at the bottom of the clutch 7 to impart an elastic force during washing and dehydration.

In addition, first and second hoses 12a and 12b, which are branched from the drain hose 12 and integrated, are inserted into the lower center and the lower one side of the outer tub 1, respectively, and inside the first hose 12a. The drain valve 13 is installed, and the peripheral surface of the inner tank 4 with respect to the outer tank 1 is formed to be inclined at a predetermined angle (θ).

The present invention configured as described above shows that when water is introduced into the inner tank 4 having a structure in which water is not discharged when washing with a fully automatic washing machine, as shown in FIGS. 3 and 4, the inner tank 4 is formed by the weight of the water. Is lowered so that the elastic member 11 inserted into the motor shaft 3 between the guide jaw 8 protruding from the center of the outer tub 1 and the support jaw 10 formed on the bottom of the second clutch 7. Will be compressed.

At the same time, the second ratchet 6b of the end circumferential surface of the first clutch 6 inserted into the upper part of the motor shaft 3 below the rotor 5 and press-fitted and the motor shaft 3 of the lower center of the inner tub 4 Rotor installed in the upper end of the motor shaft 3 spaced apart as shown in FIG. 3B while the ratchet groove 7a of the second clutch 7 inserted in the FIG. Only (5) rotates to perform the washing process.

In addition, when dewatering with a fully automatic washing machine, the drain valve 13 inside the first hose 12a inserted into the lower center of the outer tub 1 by branching from the drain hose 12 is opened to wash the inner tub ( 4) the water in the inner tank (4) is reduced because the water introduced into the discharge through the drain (5a) (6c) (7b) of each of the rotor (5) and the first and second clutch (6), (7) The inner shell 4 is formed by the elastic restoring force of the elastic member 11 inserted into the motor shaft 3 between the guide jaw 8 and the support jaw 10 of the second clutch 7 in the outer tub 1. Will rise.

At the same time, the second ratchet 6b of the first clutch 6 and the ratchet groove 7a of the second clutch 7 are spaced apart as shown in FIG. The rotor 5 and the inner tank 4 are connected to rotate together to perform a dehydration process. At this time, the discharged water flows out of the inner tank 4 to the outer tank 1 so that the lower center of the outer tank 1 is discharged. And it is combined through the first and second hoses 12a, 12b inserted into one side is discharged to the outside by the drain hose (12).

On the other hand, since the circumferential surface of the inner tank 4 having a structure in which no water is discharged is formed to be inclined at an angle (θ) with respect to the outer tank 1, the water separated from the laundry due to centrifugal force when dewatering the inner wall 4 Ride can be easily introduced between the outer tank 11 and the inner tank (4).

As described above, the present invention can reduce the installation space by simplifying the structure of the driving mechanism of the fully automatic washing machine, and also can efficiently perform the clutch and declutching functions during washing and dehydration. It is a very useful design that has greatly improved efficiency and reliability.

Claims (4)

A first clutch 6 having a first ratchet 6a and a second ratchet 6b which are inserted into and fixed to the motor shaft 3 provided through the outer tub 1 and the inner tub 4, and the inner tub A second clutch 7 installed in the motor shaft 3 and having a ratchet groove 7a spaced and connected to the second ratchet 6b when washing and dehydrating, and the outer tub 1 It is inserted into the guide jaw (8) of the sealing member (9) to prevent water from flowing out of the inner tank (4) when washing, and formed in the guide jaw (8) and the second clutch (7) Driving device for a full automatic washing machine, characterized in that it is composed of an elastic member (11) inserted into the motor shaft (3) between the supporting jaw (10) to impart elasticity during washing and dehydration. The driving machine of claim 1, wherein the first and second clutches 6 and 7 and the rotor 5 installed on the top of the motor shaft 3 are respectively provided with drainage holes 5a, 6c and 7b. Device. The first and second hoses 12a and 12b, which are branched from the drain hose 12 and integrated, are inserted into the lower center and one side of the outer tub 1, respectively, and the first hose 12a. The drainage valve 13 is installed inside the drive of the automatic washing machine. The driving device of the full-automatic washing machine according to claim 1, wherein the peripheral surface of the inner tub (4) is formed to be inclined at an angle (θ) with respect to the outer tub (1).