KR100238648B1 - Motive transmission apparatus for a washing machine - Google Patents

Abstract

The present invention relates to a power transmission device of a washing machine.

In the present invention, the water tank installed inside the main body of the washing machine is installed while maintaining a balance, and the driving force of the driving device is accurately transmitted to the shaft device.

The present invention, the upper side is opened and closed by the opening and closing member and the lower side is closed by the base to form the overall appearance of the washing machine, the water tank suspended on the inner side of the main body to accommodate the laundry dehydration tank, the inner side of the laundry dehydration tank A stirrer installed in the base, a driving device disposed in place of the base, a shaft device provided below the water tank and organically coupled to the laundry dehydration tank and the stirrer, and one end of which is connected to the shaft of the driving device. The other end is connected to the shaft of the shaft device and is provided as a direct connection means for transmitting the driving force of the drive device to the shaft device.

In addition, the present invention, the upper side is opened and closed by the opening and closing member and the lower side is closed by the base to form the overall appearance of the washing machine, the suspension suspended inside the main body to accommodate the laundry dehydration tank, and the laundry dehydration A stirrer installed inside the tank, a drive device disposed in place of the base, a shaft device provided below the water tank and organically coupled to the laundry dehydration tank and the stirrer, and one end of the shaft of the drive device. And the other end is connected to the shaft of the shaft device and is configured to be provided with a shaft joint member for transmitting the driving force of the drive device to the shaft device.

Description

Power train of washing machine

The present invention relates to a power transmission device of a washing machine, and more particularly, a water tank installed inside the main body of the washing machine is installed while maintaining a balance, and the power transmission device of the washing machine in which the driving force of the driving device is correctly transmitted to the shaft device. It is about.

As shown in FIG. 1, a general household washing machine maintains suspension by a suspension device (not shown) inside the main body 1, and a laundry dehydration tank 3 is disposed inside the tank 2. In the lower side of the washing dehydration tank (3), a stirrer (4) such as a pulsator or agitator is installed, and the washing dehydration tank (3) and the stirrer (4) are located outside the lower side of the water tank (2). It is installed to be rotated in one direction, forward and reverse by the mounted driving device 5 and the shaft device 6.

That is, the pulley is fitted to the shaft protruding downward from the drive device 5 and the shaft device 6, and these pulleys are electrically installed by the belt 7 so that the driving force of the drive device 5 is applied to the belt 7. It is configured to be transmitted to the shaft device 6 through.

On the other hand, the water supply port 8 for receiving the washing water or rinsing water to the water tank 2 is disposed on the rear upper side of the main body (1).

Referring to the operation of the general washing machine configured as described above are as follows.

That is, after opening and closing the opening and closing member provided on the washing machine main body 1, the laundry is supplied to the water tank (2) through the water supply port (8).

When water supply is completed, the driving force of the driving device 5 is transmitted to the shaft device 6 through the belt 7, and the stirrer 4 is driven forward and reverse rotation by the driving. The laundry contained in the laundry is washed, and when the washing is completed, after the washing water is drained, the washing dehydration tank 3 rotates at a high speed in one direction by the driving device 5 and the shaft device 6 to perform the dehydration stroke. Proceed.

Of course, the above-described series of operations of the general washing machine are automatically controlled by a microcomputer (not shown) provided in a suitable place of the washing machine.

However, the following problems occur in the general washing machine as described above.

That is, the driving device 5 transmits the driving force to the shaft device 6 side, so that the washing machine rotates forward and backward by washing the stirrer 4 at the washing stroke, and the washing dehydration tank 3 at the dehydrating stroke. It rotates in one direction and dehydrates the laundry by the centrifugal force. The shaft device 6 is disposed in the direction of the center axis of the water tank 2, and the driving device 5 is located on one side of the water tank 2 below. Due to the unbiased structure, there is a problem that the vibration and the resulting noise during washing and rinsing administration.

In addition, the driving force of the drive device (5) is transmitted to the shaft device (6) side through the belt (7), the long-term use of the belt (7) is worn out to generate noise due to friction, thereby, There is a problem in that the driving force of the driving device 5 cannot be accurately transmitted with respect to the device 6, and thus a malfunction of the washing machine occurs.

Therefore, the technical problem to be achieved by the present invention, that is, the object of the present invention was created in view of the problems of the conventional washing machine, and by maintaining the balance of the water tank installed inside the main body of the washing machine, driving of the washing machine It is to provide a power transmission device of the washing machine to prevent the occurrence of vibration and the resulting noise.

Another object of the present invention is to provide a power transmission device that prevents a malfunction of a washing machine by accurately transmitting a driving force of a driving motor to a shaft device for selectively rotating a stirrer and a washing dehydration tank.

1 is a cross-sectional view of a typical washing machine

2 is a first embodiment of a washing machine to which a power transmission device according to the present invention is applied.

3 is a cross-sectional view showing the main parts of the first embodiment;

4 is a second embodiment of a power transmission device according to the present invention;

5 is a perspective view of a second embodiment according to the present invention;

Explanation of symbols on the main parts of the drawings

One ; Washing machine body 2; water tank

3; Laundry dehydration tank 4; agitator

5; Drive system 6; Shaft device

7; Direct connection means 8; Shaft joint member

10; Base 50; Drive shaft

60; Shaft unit shaft 70; Connecting member

71; Bearing 72; Reinforcement member

73; Tube

In order to achieve the above object, the present invention, the upper side is opened and closed by the opening and closing member and the lower side is closed by the base to form the overall appearance of the washing machine, the suspension suspended inside the main body and accommodating the washing dehydration tank and And a stirrer installed inside the laundry dehydration tank, a driving device disposed in place of the base, a shaft device provided below the water tank and organically coupled to the laundry dehydration tank and the stirrer, and one end of the washing device. It is connected to the shaft of the drive device and the other end is connected to the shaft of the shaft device provides a power transmission device of the washing machine, characterized in that provided as a direct connection means for transmitting the driving force of the drive device to the shaft device.

In addition, the present invention, the upper side is opened and closed by the opening and closing member and the lower side is closed by the base to form the overall appearance of the washing machine, the suspension suspended inside the main body to accommodate the laundry dehydration tank, and the laundry dehydration A stirrer installed inside the tank, a drive device disposed in place of the base, a shaft device provided below the water tank and organically coupled to the laundry dehydration tank and the stirrer, and one end of the shaft of the drive device. It is connected to and the other end is connected to the shaft of the shaft device provides a power transmission device of the washing machine, characterized in that provided as a shaft joint member for transmitting the driving force of the drive device to the shaft device.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention for achieving this object will be described in detail.

2 is a cross-sectional view of a general washing machine to which the first embodiment of the power transmission device according to the present invention is applied, and the same reference numerals are used for the same parts as in the prior art.

As shown therein, the main body 1 is provided with an opening and closing member 11 on the upper side, the lower side is sealed by the base 10 and the overall appearance is formed.

The main body 1 has the water tank 2 suspended in a state in which the washing dehydration tank 3 is accommodated by a suspension device not shown therein, and an agitator 4 is disposed inside the washing dehydration tank 3. Is provided.

On the other hand, the drive device 5 which is a drive source is arrange | positioned in place of the said base 10, and the shaft device 6 is installed in the outer side downward in the center axial direction of the said water tank 2.

The shaft device 6 receives the driving force of the drive device 5 by the direct connection means 7 according to the first embodiment of the present invention.

2, one end thereof is connected to the shaft of the drive device 5 and the other end is connected to the shaft of the shaft device 6, as shown in FIG.

3 is a cross-sectional view showing in detail the direct connection means 7 according to the present invention.

That is, the direct connection means 7 includes a rod-shaped connecting member 70. One end of the connecting member 70 is connected to the shaft 50 of the drive device 5, and the other end is connected to the shaft 60 of the shaft device 6. Bearings 71 are formed on the outer circumferential surface of each end of the connecting member 70, and a reinforcing member 72 is wrapped on the outer circumferential surface of the rod-shaped connecting member 70. In addition, these are hermetically received by the tubular body 73.

Preferably, the reinforcing member 72 uses a plurality of twisted iron cores, and the tubular body 73 is configured to absorb impact and noise due to contact that may occur while the reinforcing member 72 pivots during power transmission, which will be described later. It is preferable to comprise a soft material.

In addition, in order to satisfy the requirements of the first embodiment, the driving device 5 is configured to be disposed on the base 10 corresponding to the shaft device 6 installed in the direction of the center axis of the water tank 2. This is desirable.

The operation of the first embodiment according to the present invention configured as described above will be described.

That is, after opening and closing the opening and closing member provided on the upper side of the washing machine main body (1), the washing water is supplied to the water tank (2) through the water supply port.

When the water supply is completed, the driving force of the driving device 5 is transmitted to the shaft 60 of the shaft device 6 through the connecting member 70 fitted to the shaft 50.

At this time, both ends of the connection member 70 is smoothly rotated and transmitted to the drive device 5 with respect to the shaft device 6 in a relation that the bearing 71 is fitted to the tubular body 73.

Therefore, the agitator 4 is driven forward and reverse rotation by the driving force of the drive device 5 transmitted to the shaft device 6, and the laundry contained in the laundry dehydration tank 3 is washed, When the washing water is completed, after the washing water is drained, the washing dehydration tank 3 is rotated at a high speed by the driving device 5 and the shaft device 6 to proceed with the dewatering operation in the same operation as that of the general washing machine.

Of course, the series of operations of the washing machine to which the present invention is applied is also automatically controlled by a microcomputer (not shown) provided in a suitable place of the washing machine.

However, a feature of the present invention is that the shaft device 6 is installed in the central axis direction of the water tank 2, and the drive device 5 which transmits power to the shaft device 6 has a water tank 2 and Since the water tank 2 is installed on the base 10 of the main body 1 spaced apart from each other, the center of gravity of the water tank 2 is coincided with the shaft device 6 so that vibration and subsequent noise are not caused during washing and dehydration. .

Therefore, the shaft device is disposed directly below the central axis of the water tank, and the driving device is solved by the structure that is biased to one side of the water tank below, so that the vibration and the noise caused during the washing and rinsing stroke are solved.

In addition, due to the structure in which the driving force of the drive device is transmitted to the shaft device side through the belt, the belt wears during long-term use, and friction and noise are generated by the worn belt, thereby driving the shaft device. The conventional problem of not being able to accurately transmit the driving force of the device is also solved.

4 is a second embodiment of a power transmission device according to the present invention.

That is, in the first embodiment described above, the drive device 5 is provided by installing the shaft device 6 in the direction of the center axis of the water tank 2 and by installing the drive device 5 in the corresponding base 10. In the second embodiment, the shaft device 6 is provided in the direction of the center axis of the water tank 2, while the driving force of the tank is transmitted to the shaft device 6 through the connection member 70 formed of a separate wire. And a driving device 5 on one side of the base 10 which is eccentric therewith, and a universal coupling, as shown in FIG. 5, for transmitting a driving force of the driving device 5 to the shaft device 6. It is used as the shaft joint member 8 of the back.

Since the operation of the second embodiment is conventional and the effects thereof are also the same as those of the first embodiment described above, a separate description thereof will be omitted, and only the same parts and members as in the prior art are given the same reference numerals.

As described in detail above, the present invention, by maintaining the balance of the water tank installed inside the main body of the washing machine, to prevent the vibration and the resulting noise during the driving of the washing machine, and to drive the driving power of the drive motor, the stirrer and washing By accurately transmitting to the shaft device for selectively rotating the dehydration tank, there is a feature such as preventing the malfunction of the washing machine.

Claims (6)

A driving device disposed in place of the base and generating a driving force, a shaft device disposed on an upper side of the driving device and fixed to a lower side of the cylindrical water tank, and for transmitting a driving force from the driving device to the shaft device, One end is coupled to the rotary shaft of the drive device, the power transmission device of the washing machine characterized in that it comprises a direct connection means that the other end is coupled to the rotary shaft of the shaft device. The power transmission device of claim 1, wherein the driving device is disposed on the base which is directly below and corresponding to the shaft device. The washing machine according to claim 1, wherein the direct connection unit comprises a rod-shaped connecting member bearing bearings on its outer circumferential surface, a reinforcing member surrounding the connecting member, and a tubular body accommodating the reinforcing member. Power train. A driving device disposed in place of the base and generating a driving force, a shaft device disposed on an upper side of the driving device and fixed to a lower side of the cylindrical water tank, and for transmitting a driving force from the driving device to the shaft device, One end is coupled to the rotary shaft of the drive device, the power transmission device of the washing machine characterized in that it comprises a shaft coupling member is coupled to the other end of the rotary shaft of the shaft device. 5. The power transmission device of claim 4, wherein the driving device is disposed on one side of the base eccentrically on the central axis of the shaft device. The power transmission device of claim 4, wherein the shaft joint member is a universal coupling.

Images