KR19990007671U - Pulley and belt coupling structure of washing machine - Google Patents

Abstract

The present invention relates to a pulley and belt coupling structure of the washing machine to improve the coupling force of the pulley and the belt of the power switching member for selectively rotating the washing tank and the pulsator.

That is, the gear teeth are formed on the pulley of the power switching member and the pulley of the motor, and then the gear teeth are formed on the belt engaged with the two pulleys to prevent the belt from slipping, thereby greatly improving the power transmission power of the power switching member. The purpose of the present invention is to provide a pulley and a belt coupling structure of a washing machine. In order to achieve the above object, the present invention provides a connection groove 15a 'and 16c' provided as an outer periphery of the pulleys 15a and 16c. Gear teeth 15a and 16c having the same shape are respectively formed in the gear teeth of the coupling grooves 15a 'and 16c' on the inner surface of the belt 17 corresponding to the two pulleys 15a and 16c. After the gear teeth 17a are formed to be engaged with the 15a and 16c, the gear teeth 17a of the belt 17 are coupled to the gear teeth 15a and 16c of the pulleys 15a and 16c. It is done.

Description

Pulley and belt coupling structure of washing machine

The present invention relates to a pulley and belt coupling structure of the washing machine to improve the coupling force of the pulley and the belt of the power switching member for selectively rotating the washing tank and the pulsator.

In general, as shown in FIG. 1, a washing tank 2 is suspended in the main body 1, and a washing tank 3 is provided in the washing tank 2.

In addition, a pulsator 4 for generating water flow is installed in the washing tank 3, and a power switching member 6 for selectively driving the washing tank 3 and the pulsator 4 is installed at the bottom of the water tank 2. The power switching member 6 is driven by a motor 5, the washing shaft 6a of the power switching member 6 is connected to the pulsator 4, and the dehydration shaft 6b is connected to the washing tank 3.

The washing machine configured as described above is provided with washing and washing water inside the washing tank 3 during the washing stroke, and when the washing shaft 6a of the power switching member 6 rotates forward and backward by driving the motor 5, the washing machine 3 is rotated by the pulsator 4. As the water flows, the laundry is rubbed and the washing proceeds.

In addition, when the washing water is drained after washing is completed and the washing tank 3 is rotated at a high speed by the dehydration shaft 6b of the power switching member 6, the washing feeling is dehydrated by centrifugal force.

On the other hand, pulleys 5a and 6c are respectively provided on the shafts 5b and 6d of the power switching member 6 and the motor 5, and the belt 7 is coupled thereto. In this state, when the motor 5 is rotated, the pulley 6c is rotated through the pulley 5a and the belt 7, and the power switching member 6 is operated accordingly to the washing tub 3 or the pulsator 4. Is rotated.

Conventionally, the pulley 6c of the power switching member 6 and the pulley 5a of the motor 5 are connected to each other through the belt 7, so that when the tension of the belt 7 is loosened, the power transmission force is weakened and washed. There was a disadvantage of deterioration.

That is, the belt 7 which is hooked between the pulley 6c of the power switching member 6 and the pulley 5a of the motor 5 is transmitted power by the frictional force of each other, and the belt 7 is first installed. Although the pulleys 5a and 6c must be pulled to each other to have a predetermined frictional force, the belt 7 may be loosened due to the tension of the belt 7 during long periods of use, resulting in a large drop in power transmission. there was.

The present invention was created in view of the above problems, and formed gear teeth on the pulleys of the power switching member and the pulleys of the motor, and then formed gear teeth on the belt engaged with the two pulleys to prevent the belt from slipping. In addition, the object of the present invention is to provide a pulley and belt coupling structure of a washing machine that greatly improves the power transmission power of the power switching member.

1 is a cross-sectional view of a conventional washing machine,

Figure 2 is a perspective view of the main portion of the pulley and the belt according to the present invention,

3 is a cross-sectional view of a washing machine with a pulley and a belt installed according to the present invention.

Explanation of symbols for the main parts of the drawings

12: tank 13: washing tank

14: pulsator 15: motor

15a: Pulley 15a ': Connecting groove

15a: Gear 16: Power Switching Member

16c: Pulley 16c ': Connecting groove

16c: gear 17: belt

17a: gear

In order to achieve the above object, the present invention has a pulley installed on a shaft of a power switching member and a motor installed at a bottom of a tank, and a belt is coupled thereto, so that the gear of the pulley of the power switching member and the pulley of the motor are geared. And gears formed on the belts corresponding to the two pulleys, and then the two pulleys and the belt are combined.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention in detail as follows.

Figure 2 is a perspective view of the main part of the pulley and the belt according to the present invention, Figure 3 is a cross-sectional view of the washing machine is installed pulley and the belt according to the present invention.

First, the water tank 12 is installed hanging inside the main body 11, the washing tank 13 is provided inside the water tank 12.

In addition, a pulsator 14 for generating water flow in the washing tank 13 is installed, and a power switching member 16 for selectively driving the washing tank 13 and the pulsator 14 on the bottom of the water tank 12 is installed. The power switching member 16 is driven by a motor 15 and the washing shaft 16a of the power switching member 16 is connected to the pulsator 14, and the dehydration shaft 16b is connected to the washing tank 13. Connected.

In addition, when the power switching member 16 and the motor 15 are connected, the pulleys 15a and 16c are respectively formed on the shafts 15b and 16d of the power switching member 16 and the motor 15. The gear teeth 15a and 16c having the same shape are formed in the connecting grooves 15a 'and 16c' provided at the outer circumference of the pulleys 15a and 16c, respectively, and the two pulleys 15a are formed. A gear tooth 17a engaged with the gear teeth 15a and 16c of the coupling grooves 15a 'and 16c' is formed on the inner side of the belt 17 corresponding to the belt 16c.

In this state, when the motor 15 is rotated, the pulley 16c is rotated through the pulley 15a and the belt 17, and thus the power switching member 16 is operated to wash the tub 13 or the pulsator 14. Is optionally rotated.

The above description is only one embodiment of the present invention, the configuration of the present invention can be changed any number within the scope of the subject matter.

Referring to the operation of the subject innovation configured as described above in detail.

When the washing process and washing water are supplied to the inside of the washing tub 13 during the washing administration, when the motor 15 installed at the bottom of the water tank 12 rotates, the pulley 15a and the belt 17 connected to the motor 15 are rotated. Through the pulley (16c) is rotated, accordingly the power switching member 16 is operated to selectively rotate the wash tub 13 or pulsator (14).

At this time, since the gear teeth 15a and 16c formed in the coupling grooves 15a 'and 16c' of the two pulleys 15a and 16c and the gear teeth 17a of the belt 17 are engaged with each other, the belt (17) is prevented from being missed, and the rotational force of the motor 15 is correctly transmitted to the power switching member 16.

On the other hand, when the washing shaft (16a) of the power switching member 16 is rotated forward and reverse, the laundry inside the washing tank 13 is washed while a strong rotational water flow occurs by the pulsator (14).

In addition, when the washing water is drained after the washing is completed and the washing tank 13 is rotated at high speed by the dehydration shaft 16b of the power switching member 16, the laundry is dewatered by the centrifugal force.

Therefore, the present invention forms gear teeth 15a and 16c on the pulley 16c of the power switching member 16 and the pulley 15a of the motor 15, respectively, and then the two pulleys 15a and 16c. ), The gear 17a is also formed on the belt 17 to be fastened to the belt 17, thereby preventing the belt 17 from wandering, thereby greatly improving the power transmission force.

Claims (1)

In the pulleys are respectively installed on the shaft of the power switching member and the motor installed on the bottom of the tank and the belt is coupled to them, Gear teeth 15a and 16c having the same shape are formed in the connection grooves 15a 'and 16c' provided at the outer circumference of the pulleys 15a and 16c, respectively, and the two pulleys 15a and 16c. And gear teeth 17a engaged with the gear teeth 15a and 16c of the coupling grooves 15a 'and 16c' are formed on the inner side of the belt 17 corresponding to the belt 17, and then the pulleys 15a and 16c Pulley and belt coupling structure of a washing machine, characterized in that the gear teeth (17a) of the belt 17 is coupled to the gear teeth (15a) (16c).