KR0132993Y1 - Driving apparatus of a washing machine - Google Patents

Abstract

The present invention relates to a driving device of a washing machine, the outer tank 61, the washing and dehydration tank 63 disposed in the outer tank 61 and the drive shaft member 69 to drive the power of the power transmission means 67. In the washing machine provided with a pulsator (65) disposed in the washing and dewatering tank (63) to agitate the laundry cloth and the wash water, the upper and lower portions of the outer tank (61) are supported while supporting the outer tank (61). The washing-and-dehydrating tank is supported while supporting the first suspension means 71 and the washing-and-dehydrating tank 63 which are disposed on the outer side of the outer tank 61 to suspend movement of the outer tank 61. A second suspension means 73 disposed outside the washing and dehydrating tank 63 to adjust the shanghai dong of the 63 and suspending the washing and dewatering tank 63; and the outer tank 61 and the washing. The washing-and-dehydration tank 63 and the drive shaft member 69 are connected to and separated from each other in accordance with the shanghai movement of the dehydration tank 63. Engagement means (75) disposed on the lower side of the outer tank 61, and the rotary restraining means (77) disposed on the upper side of the washing and dehydration tank (63) so that the washing and dewatering tank (63) does not rotate during washing. It is characterized in that, because it is configured in this way, not only lowers the manufacturing cost, but also the structure and operation can be simplified to increase the reliability of power transmission.

Description

Drive of washing machine

1 is a longitudinal sectional view showing a washing machine to which a conventional driving device is applied.

FIG. 2 is a longitudinal sectional view showing a driving device of the washing machine of FIG.

3 is a longitudinal sectional view showing a washing machine to which a driving device according to an embodiment of the present invention is applied.

4a and 4b are perspective views showing the engagement means of FIG.

5a and 5b is a working state diagram of the driving device of the washing machine according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: body 61: outer shell

63: washing and dehydrating tank 65: pulsator

67: power generating means 69: drive shaft member

71: first suspension means 73: second suspension means

75: engagement means 77: rotational restriction means

91: locking jaw 93: the inner clutch member

95: outer clutch member 97: insertion member

99: receiving member

The present invention relates to a driving device for a washing machine, and more particularly, to a driving device for a washing machine for changing the power transmission path by using the weight of the laundry cloth and the washing water.

As shown in FIG. 1, the outer tub 3 is installed in the washing machine main body 1, and the bottom surface of the outer tub 3 receives the rotational force of the motor 5 through the belt 7 to wash the laundry. A drive device 13 for driving the dewatering tank 9 or the pulsator 11 is fixedly installed.

In other words, a washing and dehydration tank 9 for dewatering the laundry cloth by the centrifugal force generated by the driving of the motor 5 is installed in the dehydration shaft of the driving device 13 in the outer tank 3. The pulsator which washes by forming a water flow in the wash water stored in the washing-and-dewatering tank 9 while repeating forward or reverse rotation in accordance with the driving of the motor 5 in the washing-and-dehydrating tank 9. (11) is provided on the washing shaft of the drive device (13).

The outer tub 3 is suspended from the tension bar 17 via the damper 15 so as to support the outer tub 3 and sense the vibration of the outer tub 3.

And, the upper side of the washing machine main body 1 is connected to the water tap 21 through the hose 19 is provided with water supply means 23 for supplying the washing water into the washing and dehydration tank (9) The lower surface of the outer tub 3 is provided with drainage means 25 for discharging the wash water.

In the conventional washing machine configured as described above, when washing cloth is put into the washing and dehydrating tank 9 disposed in the outer tank 3 and washing conditions are selected on a control panel not shown, hot or cold water is supplied through the water supply means 23. It is supplied to the washing and dewatering tank (9), and then the rotational force according to the operation of the motor (5) is transmitted to the driving device (13) via the belt (7), and this rotational force is decelerated in the driving device (13). It is transmitted to the pulsator 11 to rotate the pulsator 11.

At this time, the pulsator 11 performs washing by forming water flow in the washing and dehydrating tank 9 while repeating the forward and reverse rotation. After washing, after washing water is discharged according to the operation of the draining means 25 and water is supplied through the water supply means 23, rinsing is performed several times, and the washing and dewatering tank 9 is rotated at high speed. The dehydration is performed from the laundry cloth by centrifugal force to complete the washing.

As shown in FIG. 2, the driving apparatus of the conventional washing machine configured as described above includes a driving washing shaft having a pulley 27 fixed at a lower end thereof to receive a rotational force through the belt 7 according to the driving of the motor 5. (29) is free to rotate, the drive coupling 31 is inserted into the outer peripheral surface of the drive washing shaft 29 and the first dehydration shaft 33 is not shown above the drive coupling 31 Is installed rotatably via a non-bushing member, the connector 35, which serves as a brake drum is coupled to the upper portion of the first dehydration shaft 33 is connected to the first dehydration shaft 33 to rotate freely integrally It is.

The second dehydration shaft 37 is inserted and coupled to the upper side of the connector 35 so as to be freely rotated integrally with the connector 35, and the washing and turbid water tank is disposed above the second dehydration shaft 37. (9) is coupled to be free to rotate integrally with the second dehydration shaft 37, the pulsator 11 is coupled to the upper end via a bushing member (not shown) inside the second dehydration shaft 37 The driven washing shaft 39 is inserted into the rotor freely.

On the other hand, the inside of the connector 35 is rotated and decelerated of the drive washing shaft 29 by a planetary gear (not shown) to be transmitted to the driven washing shaft (39).

In addition, the first dehydration shaft 33 is supported by a lower bearing 43 press-fitted into the lower case 41 so that the first dewatering shaft 33 is easily rotated in accordance with the rotation of the drive laundry shaft 29. 37 is supported by an upper bearing 47 press-fitted into the upper case 45 so as to easily rotate in accordance with the rotation of the first dehydration shaft 33.

In addition, a brake lever may be provided on a middle outer circumferential surface of the connector 35 to prevent the washing and dewatering tank 9 from idling during washing and to brake the washing and dewatering tank 9 when the dehydration stops. The brake band 49, which is connected to the support 51, is disposed. It is also supported by the clutch boss 53 over the outer circumferential surface between the first dehydration shaft 33 and the drive coupling 31 to transmit the rotation of the drive laundry shaft 29 to the first dehydration shaft 33. The clutch spring 55 is disposed, and the clutch boss 53 is connected to the clutch boss 53 via the connecting member 57.

In the conventional driving device for a washing machine configured as described above, the brake lever 51 operates to wash the brake band 49 in a closed state, and the clutch lever 59 operates to release the clutch spring 55 in a loose state. Thus, the driving washing shaft 29 and the first dehydration shaft 33 are in a separated state.

Therefore, the rotational force by the motor 5 is decelerated in the planetary gear disposed in the connector 35 from the drive washing shaft 29 and transmitted to the driven washing shaft 39, and coupled to the upper end of the driven washing shaft 39. The washed pulsator 11 performs washing while being rotated forward or reverse. At this time, the washing and dewatering tank 9 is idling by the washing cloth and water flow, and this idling is prevented by the brake band 49.

However, at the time of dehydration, the brake lever 51 and the clutch lever 59 act in the opposite directions to the washing direction as described above, so that the brake band 49 is released and the clutch spring 55 is wound. The driving washing shaft 29 and the first washing shaft 33 are in a combined state.

Therefore, the rotational force by the motor 5 is sequentially transmitted from the drive washing shaft 29 to the first dehydration shaft 33, the connector 35, and the second dehydration shaft 37, and the second dehydration shaft 37 is provided. Washing and dehydration tank (9) coupled to the outer peripheral surface of the rotating to perform dehydration.

Then, during the dehydration stop or power failure, the brake lever 51 is operated so that the brake band 49 is wound and the rotation of the washing / dehydration tank 9 is stopped.

By the way, in the conventional drive system of the washing machine configured as described above, the number of related parts such as the clutch spring and the gear used for the power switching is high, and there is a problem that the manufacturing cost is high and reliability is poor due to the complicated structure and operation.

Therefore, the present invention has been made to solve the above problems, an object of the present invention is to drive the pulsator during washing or to drive the pulsator and washing and dehydration tank at the same time to dewater the weight of the laundry cloth and washing water such as clothing It is to provide a driving device of the washing machine to simply switch the power using.

The driving device of the washing machine according to the present invention made to achieve the above object is the outer tub, the washing and dehydration tank disposed in the outer tub, and the drive shaft member to receive the power of the power transmission means to agitate the laundry cloth and the wash water; A washing machine having a pulsator disposed in a washing and dewatering tank, the washing machine comprising: first suspension means disposed on an outer side of the outer tank to suspend the outer tank to support the outer tank and to adjust the shanghai copper of the outer tank; A second suspension means disposed outside the washing-and-dehydrating tank to suspend the washing-and-dehydrating tank to support the washing-and-dehydrating tank and to adjust the shanghai-dong of the washing-and-dehydrating tank, and the outer tank and the washing-and-dewatering Engagement water disposed on the lower side of the outer tub to connect / disconnect the washing and dewatering tank and the drive shaft member to each other along the shanghai And further characterized in that formed at the time of washing with a rotation locking means arranged at the upper side the washing and dewatering sets of so as not to rotate the washing and dewatering Joe.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected about the part same as the part shown in FIG. 1, FIG. 2, and the overlapping description is abbreviate | omitted.

As shown in FIG. 3, an outer tub 61 is disposed in the main body 1, and a washing-and-dehydrating tank 63 is disposed so that a laundry cloth is contained in the outer tub 61 for washing and dehydration. In the washing and dehydrating tank (63), a pulsator (65) is disposed to agitate the washing cloth and washing water contained therein, and the pulsator (65) and / or the bottom surface of the outer tank (61). Alternatively, power generating means 67 for generating power to drive the washing and dewatering tank 63 is disposed.

The power generating means 67 is connected to the pulsator 65 by a drive shaft member 69.

In addition, a first suspension means 61 is disposed on the outside of the outer tub 61 to support the outer tub 61 and to adjust the shanghai movement of the outer tub 61 to suspend the outer tub 61. The second suspension means 73 is disposed on the outside of the washing and dehydrating tank 63 to support the washing and dehydrating tank 63 and to adjust the shanghai movement of the washing and dehydrating tank 63. The washing and dehydrating tank 63 is suspended, and the washing and dehydrating tank 63 and the drive shaft member 69 are connected and separated from each other according to the shanghai east of the outer tub 61 and the washing and dehydrating tank 63. Engaging means 75 is disposed below the outer tub 61, and rotational restraining means 77 is provided on the upper side of the washing / dehydrating tank 63 so that the washing-and-dehydrating tank 63 does not rotate during washing. ) Is excreted.

Where the drive shaft member 69 penetrates the outer tub 61, a bearing 78 is disposed to smoothly rotate the drive shaft member 69, and one side of the bearing 78 is provided with washing water. A packing member 79 is disposed to prevent leakage, and a corrugated pipe 81 is disposed on the upper side of the outer tub 61 to support the upper side of the outer tub 61.

The power generating means 67 is a transmission motor or a motor equipped with a transmission, and is fixed to the outer bottom surface of the outer tub 61 by fixing means (not shown).

The first suspension means 61 has a plurality of guide covers 83 is fixed to the outer peripheral surface of the lower portion of the outer tank 61, and the inside of the guide cover 83 absorbs the vibration of the outer tank 61 and at the same time The elastic member 85 is disposed to move the outer tank 61 in accordance with the weight of the outer tank 61, one end of the support bar 87 is connected to the elastic member 85, and the support bar ( The other end of 87 is fixed to the upper surface of the washing machine body 1.

The second suspending means 73 has a plurality of support members 89 fixedly disposed on the upper surface of the washing machine body 1, and one end of the support member 89 is disposed on the washing / dehydration tank 63. It has a structure in which the locking step 91 is formed so that it may be caught. At this time, a portion of the support member 89 is formed with an elastic portion (89a) to move the washing and dehydration tank 63 in accordance with the weight of the washing and dehydration tank 63, the support member ( The free end of the 89 is bent to catch the engaging jaw 91.

On the other hand, the total elastic modulus kl of the first suspension means 71 is the second suspension means 73 so that the deflection amount of the outer tank 61 with respect to the load is larger than the deflection amount of the washing and dewatering tank 63. It is smaller than the total modulus of elasticity (k2).

As shown in Figs. 3 to 4b, the engagement means 75 has an inner clutch member 93 having teeth 93a on its outer circumferential surface fixedly disposed on the outer circumferential surface of the drive shaft member 69, An outer clutch member 95a having teeth 95a on its inner circumferential surface so as to engage the teeth 93a is fixedly disposed on the ground of the washing / dehydrating tank 63. At this time, the teeth 93a and 95a are formed along the circumferential direction of the inner and outer clutch portions 93 and 95 in the protruding portions and the recesses in the longitudinal direction of the respective inner and outer clutch members 93 and 95. It is.

The rotation restraining means 77 is fixedly disposed on the upper surface of the washing and dehydrating tank 63, the insertion member 97 having a constant height, and the insertion member 97 of the insertion member 97 is generally The receiving member 99 having the accommodating space 99a therein at a height is fixed to the upper inner surface of the outer tub 61.

The operation and effects of the driving device of the washing machine according to the embodiment of the present invention configured as described above will be described below.

First, at the time of washing, as shown in FIG. 5A, a laundry cloth such as clothing is put into the washing and dewatering tank 63, and the washing and dewatering tank 63 and the outer tank are operated by the operation of the water supply means 23. When water is supplied into the tank 61, the outer tank 61 suspended by the first suspension means 71 and the washing and dewatering tank 63 suspended by the second suspension means 73 are washed with cloth and washed water. Due to its weight sag down.

At this time, since the total elastic modulus k1 of the first suspending means 71 is smaller than the total elastic modulus k2 of the second suspending means 73, the deflection of the outer tank 61 is the washing and dehydration tank ( Greater than the deflection of 63). Therefore, the insertion member 97 of the rotational restricting means 77 is inserted into the receiving member 99, and the inner clutch member 93 of the engaging means 75 is separated from the outer clutch member 95.

Therefore, the power generated in the power generating means 67 is transmitted only to the pulsator 65 and at the same time the washing and dehydrating tank 63 is constrained to the outer tank 61 by the rotary restraining means 77, The washing-and-dehydrating tank 63 does not rotate by the force which the pulsator 65 stirs a wash cloth and wash water.

Next, at the time of dehydration, as shown in FIG. 5B, when the washing water stored in the washing and dehydrating tank 63 and the outer tank 61 is drained by the operation of the drainage means 25, only the washing cloth is washed and dewatering. Since it remains in the tank 63, the washing and dewatering tank 63 suspended by the second suspension means 73 sags downward due to the weight of the object to be cleaned. At this time, the washing and dehydration tank 63 is lowered because the support member 89 of the second suspension means 73 is caught on the locking jaw (91).

Thus, the insertion member 97 of the rotational restriction means 77 is separated from the receiving member 99, the inner clutch member 93 of the engagement means 75 is inserted into the outer clutch member 95, The power generated by the generating means 67 is transmitted to the pulsator 65 and the washing and dehydrating tank 63, and at the same time, the washing and dehydrating tank 63 is free to rotate from the outer tank 61. It can be dehydrated.

That is, it is possible to simply change the transmission path of the power by the operation of the engagement means and the rotational restraining means by the weight of the laundry cloth and the wash water, without using a separate converter for washing and dehydration.

As described above, the driving device of the washing machine according to the present invention has a structure in which an engaging means and a rotating restraining means are disposed in a space between an outer tub suspended in a first suspension means and a washing and dehydrating tank suspended in a second suspension means. As a result, it is possible to increase the reliability of power transmission by reducing the manufacturing cost and simplifying the structure and operation.

Claims (5)

The outer tank 61, the washing and dehydration tank 63 disposed in the outer tank 61, and the drive shaft member 69 receives the power of the power transmission means 67 to agitate the laundry cloth and the wash water. A washing machine provided with a pulsator (65) disposed in a washing and dewatering tank (63), wherein the outer tank (61) is supported so as to support the outer tank (61) and adjust the shanghai movement of the outer tank (61). The first suspension means 71 which is suspended in the outer tank 61 and the washing and dewatering tank 63 while supporting the washing and dehydrating tank 63 and at the same time adjusts the shangdong of the washing and dewatering tank 63. In accordance with the second suspension means 73 disposed outside the cumulative dehydration tank 63 and suspending the washing and dehydrating tank 63, and the shangdong of the outer tank 61 and the washing and dehydrating tank 63. Engaging means 75 disposed on the lower side of the outer tub 61 so as to connect / disconnect the washing-and-dehydrating tank 63 and the drive shaft member 69 with each other; Driving device for a washing machine, characterized in that consisting of the rotary binding means 77 disposed on the upper side of the washing and dehydration tank (63) so that the washing and dehydration tank (63) does not rotate. The washing apparatus according to claim 1, wherein the second suspension means (73) has a plurality of support members (89) fixedly disposed on an upper surface of the washing machine body (1) and one end of the support member (89). Driving device for a washing machine, characterized in that provided with a locking step 91 formed on the upper portion of the dehydration tank (63). According to claim 2, A portion of the support member 89 is formed with an elastic portion (89a) to move the washing and dewatering tank 63 in accordance with the weight of the washing and dewatering tank 63, The free end of the support member (89) is a driving device of the washing machine, characterized in that bent to be caught by the locking jaw (91). According to claim 1, wherein the engaging means 75 is provided with teeth 93a on the outer peripheral surface of the inner clutch member 93 fixedly disposed on the outer peripheral surface of the drive shaft member 69 and the teeth 93a. Driving device of the washing machine, characterized in that the inner peripheral surface is provided with teeth (95a) made of an outer clutch member (95) fixedly disposed on the bottom of the washing and dewatering tank (63). The method of claim 1, wherein the rotational restricting means 85 is inserted member 97 having a predetermined height fixed to the upper surface of the washing and dewatering tank 63, and the insertion member 97 is inserted therein Driving device of the washing machine, characterized in that consisting of a receiving member (99) fixedly disposed on the upper inner surface of the outer tub (61).