KR20030008351A - Horizontal axis washing machine - Google Patents

Abstract

PURPOSE: A drum type washing machine is provided to improve washing performance by rotating an inner tub and an outer tub in the same or opposite direction according to the kind and the volume of clothing to generate various washing patterns. CONSTITUTION: A drum type washing machine includes an outer tub for receiving water, an inner tub mounted in the outer tub, a washing tub mounted in the inner tub, and a driving unit for driving the inner tub and the washing tub to rotate. Herein, the driving unit includes a dehydration shaft(8) connected to the washing tub for rotating the inner tub, a washing shaft(7) connected to the washing tub for rotating the washing tub, a planetary gear(10) connected to an end of the washing shaft and engaged with inner wheel gear of the dehydration shaft, a sun gear(11) engaged with the planetary gear, a driving shaft(9) inserted in the center of the sun gear, a unidirectional bearing(12) fixed in the dehydration shaft for supporting the driving shaft, a pulley(13) mounted to an end of the driving shaft, and a belt(14) connected to the pulley for transmitting the power of the motor.

Description

Drum Washing Machine {HORIZONTAL AXIS WASHING MACHINE}

The present invention relates to a washing machine, and more particularly, to a drum washing machine to install the inner tank and the washing tank in the outer tank receiving water to rotate the inner tank and the washing tank in the same direction or the opposite direction to wash.

In the related art, as shown in FIG. 1, a bearing 4 is mounted at one end of the outer tub 1, a shaft 5 is inserted into the bearing, and an inner tub 2 is fixed at one end thereof. On the opposite side, a pulley 6 is mounted.

The pulley 6 is connected to the motor 8 mounted under the outer tub through the belt 7 to transmit power.

And the circumferential direction of the inner tank (2) is equipped with a plurality of washing wings (3) serves to move the laundry during washing.

First, during washing, the motor 8 rotates slowly and is transmitted to the pulley 6 through the belt 7 to decelerate by the ratio between the motor shaft and the pulley, and the torque increases by the ratio to rotate the shaft. 5) As the inner tank 2 connected is rotated, a plurality of laundry blades 3 mounted in the circumferential direction of the inner tank 2 rotate together to pull up the laundry, drop it by its own weight, and perform washing.

In the dehydration, the motor 8 is rotated at a high speed in one direction to perform dehydration by centrifugal force.

As described above, in the related art, when washing the laundry, the inner tank 2 is slowly rotated to move the laundry upward by the wings 4, and washing is performed using the energy of washing the laundry by its own weight at a certain height. Lack.

In particular, when the amount of laundry increases, the washing method using such a drop can hardly achieve the effect, and thus there is a problem that it is difficult to secure more and more washing performance.

The present invention is to solve the problems as described above, and when washing the inner tank and the washing tank can be washed by rotating in the same direction, and also to be rotated opposite to each other in various ways depending on the type and amount of fabric It is to provide a drum washing machine that can generate a washing pattern of the washing performance and the quality of the washing.

1 is a conventional drum washing machine

2 is a drum washing machine according to the present invention

<Explanation of symbols for the main parts of the drawings>

1: outer tank 2: inner tank

3: washing tank 4: washing wing

5: bearing 6: oilless bearing

7: washing shaft 8: dewatering

9: drive shaft 10: planetary gear

11: sun gear 12: one-way bearing

13: pulley 14: belt

15: motor

The present invention is an outer tank receiving water in order to achieve the above object; An inner tank installed inside the outer tank; A washing tank installed inside the inner tank; It provides a drum washing machine comprising a drive device for rotating the inner tank and the washing tank.

The present invention is the drive unit is connected to the washing tank in order to achieve the above object and the de-shrinkable to rotate the inner tank; A washing shaft connected to the washing tub to rotate the washing tub; A planetary gear connected to the end of the washing shaft and engaged with the inner wheel gear of the dewatering shaft; A sun gear meshed with the planetary gear; A drive shaft inserted in the center of the sun gear; A one-way bearing press-fitted to the dehydration shaft to support the drive shaft; A pulley mounted to an end of the drive shaft; It is connected to the pulley provides a drum washing machine comprising a belt for transmitting power of the motor.

The present invention provides a drum washing machine characterized in that the inner tank and the washing tank can be rotated in the same direction or in opposite directions to each other to achieve the above object.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2, the bearing 5 is press-fitted in the center of the rear surface of the outer tub 1, and the bearing 5 supports the dehydration shaft 8 and is provided at one end of the dehydration shaft. The inner tank 2 installed inside the outer tank is fixed.

The oilless bearing 6 is press-fitted inside the hollow dewatering shaft 8, and the oilless bearing supports the washing shaft 7. One end of the washing shaft 7 is fixed to the washing tank 3 provided inside the inner tank, the planetary gear 10 is mounted on the opposite end.

The planetary gear 10 is engaged with the inner wheel gear inside the dehydration shaft 8 and in the center thereof is engaged with the sun gear 11 connected with the drive shaft 9. And the drive shaft 9 is supported by the one-way bearing 12 press-fitted to the dehydration shaft 8 and fixed.

A pulley 13 is mounted at the end of the drive shaft 9, and the pulley 13 has a structure in which the pulley 13 is connected to the motor 15 through the belt 14.

First, during washing, when the motor 15 is rotated in a direction in which the one-way bearing 12 rotates, power is transmitted to the pulley 13 through the belt 14 connected to the shaft of the motor, and driven with the pulley (9). ) Rotates accordingly, and the planetary gear 10 engaged with the sun gear 11 rotated at the end of the drive shaft 9 rotates.

At this time, since the planetary gear 10 is engaged with the inner wheel gear inside the dehydration shaft, when the planetary gear 10 rotates, the inner wheel gear rotates in the opposite direction.

Therefore, the washing tank 3 connected to the laundry shaft 7 connected to the planetary gear 10 and the inner tank 2 connected to the dehydration shaft 8 rotate in opposite directions to perform washing.

As the washing tank 3 and the inner tank 2 rotate in opposite directions, the washing method using the existing drop and the laundry hanging together in the inner tank 2 and the washing tank 3 perform washing as if they were squeezed by hand. Performance is improved.

When the motor rotates slowly in a direction in which the one-way bearing does not rotate, the driving shaft 9 and the dehydration shaft 8 are constrained and rotated together, thereby restraining the internal gears and rotating the washing shaft 7 together. Therefore, the washing tank 3 and the inner tank 2 connected to the ends of the washing shaft 7 and the dewatering shaft 8 may rotate in the same direction to perform washing as in the conventional drum method.

Finally, during the dehydration, when the motor rotates at a high speed in a direction in which the one-way bearing does not rotate, the inner tank 2 and the washing tank 3 rotate at a high speed, so that dehydration can be performed using centrifugal force.

As described above, according to the present invention, washing may be performed by rotating the inner tank and the washing tank in the opposite direction, and also washing may be performed by rotating in the same direction as the conventional one, thereby generating various patterns of washing according to the type and amount of cloth. The washing performance and the quality of washing can be improved.

Claims (3)

External tank receiving water; An inner tank installed inside the outer tank; A washing tank installed inside the inner tank; Drum washing machine comprising a drive device for rotating the inner tank and the washing tank. The method of claim 1, The drive unit is connected to the washing tub deshrinkable to rotate the inner tank; A washing shaft connected to the washing tub to rotate the washing tub; A planetary gear connected to the end of the washing shaft and engaged with the inner wheel gear of the dewatering shaft; A sun gear meshed with the planetary gear; A drive shaft inserted in the center of the sun gear; A one-way bearing press-fitted to the dehydration shaft to support the drive shaft; A pulley mounted to an end of the drive shaft; Drum washing machine characterized in that it comprises a belt connected to the pulley to transfer the power of the motor. The method of claim 1, Drum washing machine, characterized in that the inner tank and the washing tank can be rotated in the same direction or in the opposite direction by the operation of the drive device.