KR19990079899A - washer - Google Patents

Abstract

The present invention relates to a washing machine, so that the washing and dehydration in the washing machine is smoothly performed even if the clutch required for switching between washing and dehydration mode is removed from the washing machine.

To this end, an embodiment of the present invention is provided with an outer case 1, an outer tub 2 installed in the outer case 1, and an inner tub 3 rotatably installed in the outer tub 2. In a washing machine; The motor 101 is installed on the bottom surface of the outer tub 2, the motor pulley 103 is axially coupled to the motor 101, and the washing and dewatering shaft 102 is disposed on the bottom surface of the inner tub 3. ) Is coupled to the washing and dewatering shaft 102 by the shaft pulley 104 is connected to the motor pulley 103 by the V-belt (9).

To this end, another first embodiment of the present invention is an outer case (1), the outer tub (2) installed in the outer case (1), the inner tub (3) rotatably installed in the outer tub (2) And, In the washing machine provided with a pulsator (4) rotatably installed on the bottom surface in the inner tub (3); The motor 101 is installed on the bottom surface of the outer tub 2, the motor pulley 103 is axially coupled to the motor 101, and the washing and dewatering shaft 102 is disposed on the bottom surface of the inner tub 3. ) Coupled to the washing and dewatering shaft 102, the shaft pulley 104 is connected to the motor pulley 103 by a V-belt (9), the washing and dewatering shaft 102 is a rotating material It is made by combining the washing shaft 106.

To this end, a second embodiment of the present invention is an outer case (1), an outer tub (2) installed in the outer case (1), and an inner tub (3) rotatably installed in the outer tub (2) And, in the washing machine provided with a pulsator (4) rotatably installed on the bottom surface of the inner tub (3), the motor 101 is installed on the bottom surface of the outer tub (2), the motor 101 ) Is coupled to the motor pulley (103), the lower surface of the inner tub (3) is combined with the washing and dehydration shaft 102, the washing and dehydration (102) motor by the V-belt (9) Coupling shaft pulley 104 is connected to the pulley 103, the upper surface of the washing and dewatering shaft 102 is formed with a groove 108, the lower surface of the pulsator (4) pulsator shaft ( 110, a screw fastening hole 114 into which the screw 105 is inserted is formed at the bottom surface of the pulsator shaft 110, and in the groove 108. The insertion groove 111 is inserted into the pulsator shaft 110 is inserted into the upper surface to be coupled to the pulsator (4), the lower surface is the mounting groove 112 is inserted into the head of the screw 105, and the insertion Between the groove 111 and the seating groove 112, a bushing 109 having a screw insertion hole 113 penetrating the insertion groove 111 and the seating groove 112 is inserted thereinto, and the pulsator shaft 110 of the The inner peripheral portion of the outer peripheral portion and the insertion groove 111 is formed by forming a tooth-shaped projection 115 in the longitudinal direction, respectively.

To this end, another third embodiment of the present invention is an outer case (1), the outer tub (2) installed in the outer case (1), the inner tub (3) rotatably installed in the outer tub (2) And, in the washing machine provided with a pulsator (4) rotatably installed on the bottom surface of the inner tub (3), the motor 101 is installed on the bottom surface of the outer tub (2), the motor 101 ) Is coupled to the motor pulley (103), the lower surface of the inner tub (3) is combined with the washing and dehydration shaft 102, the washing and dehydration (102) motor by the V-belt (9) Coupling the shaft pulley 104 is connected to the pulley 103, and the groove 108 is formed on the upper surface of the washing and dewatering shaft 102, the groove 108 is coupled to the pulsator (4) The bushing 109 is inserted into the groove, and the bearing 107 into which the bushing 109 is press-fitted is pressed into the groove 108, and the lower surface of the pulsator 4 The upper portion of the bushing 109 is pressed into the inner diameter of the bearing 107 to form an insertion groove 111 is inserted, the top surface of the pulsator (4) a seating groove in which the head of the screw 105 is inserted 112 to form a screw insertion hole 113 penetrating through the insertion groove 111 and the mounting groove 112 in the pulsator 4 between the insertion groove 111 and the seating groove 112, The upper surface of the bushing 109 forms a screw fastening hole 114 into which the screw 105 is fastened, and the inner peripheral portion of the insertion groove 111 and the outer peripheral portion of the bushing 109 are serrated in the longitudinal direction. Will be formed by forming the projections 115, respectively.

Description

washer

The present invention relates to a washing machine, and more particularly, to a washing machine to smoothly wash and dehydrate in the washing machine even if the clutch for switching between washing and dehydrating modes is removed.

In general, a washing machine puts laundry, water and detergent together, and then washes the laundry while rotating according to a signal generated from the controller.

Then, the configuration of the washing machine for reference as follows.

As shown in FIG. 1, the washing machine includes an outer case 1, an outer tub 2 installed to be supported in the outer case 1, and an inner tub 3 rotatably installed in the outer tub 2. And a pulsator 4 rotatably installed on the inner bottom surface of the inner tub 3 to remove contaminants by generating mechanical stirring force in the laundry, and an outer bottom center of the outer tub 2. And a clutch 6 coupled to the clutch 6 to selectively rotate the inner tub 3 and the pulsator 4 by receiving a driving force of the motor 5 through a V-Belt 9. 6) and the dehydration shaft (11) which is axially coupled to the inner tub (3) to transmit the rotational force, and is installed concentrically inside the dehydration shaft (11), the washing force of the motor (5) only in the pulsator (4) during washing And to deliver, when dewatering combined with the dehydration shaft (11) washing shaft 10 for transmitting the rotational force to the inner tub (3), The clutch pulley 8 is fixed to the lower end of the washing shaft 10 to receive the rotational force of the motor 5 through the V-belt 9 and decelerates first, and the V-belt 9 is axially coupled to the motor 5. Motor pulley (7) for transmitting the rotational force to the clutch pulley (8) and the upper side of the outer case (1) is installed through the water supply hose (not shown) to supply the required wash water according to the user's choice The water supply valve 13 is opened and closed to allow the water to be opened and closed to drain the wash water used for washing and rinsing through the drain hose 15 to the outside of the outer case 1. A drainage valve 14 and a hollow ring-shaped balancer 12 installed on the upper portion of the inner tub 3 to reduce vibrations of the upper portion of the inner tub 3 due to the deflection of laundry; It is installed on the upper part of the outer case 1, the controller 19, the water supply valve 13, the water level sensor (not shown) ), A top cover 17 in which parts such as a door switch (not shown) are installed, a door 20 installed and opened at an upper part of the outer case 1, and a lower part of the outer case 1. Vibration and noise generated by the base 18 supporting each of the components and the inner tub 3 and the outer tub 2 which are eccentrically rotated due to the bias of the laundry contained in the inner tub 3. It consists of several dampers 16 which prevent.

The clutch 6 has three functions, and the first function is to separate and combine the washing shaft 10 and the dewatering shaft 11, that is, the washing shaft 10 to rotate only the pulsator 4 during washing. ) And the dehydration shaft (11), and when the dehydration is to combine the washing shaft 10 and the dehydration shaft (11) to rotate the inner tub (3) and the pulsator (4) together, the second function is By converting the rotational speed of the pulsator 4 during washing into a speed suitable for washing, that is, the rotational speed of a normal motor 5 is 1800 rpm, and this speed needs to be decelerated at a speed that is too fast for washing. Due to the ratio of the motor pulley (7) and clutch pulley (8) (e.g. clutch pulley diameter: motor pulley diameter = 2: 1), the primary deceleration takes place at about 900 rpm, but this speed is too fast for washing and thus the clutch (6) Since there is a reduction gear (not shown) using a gear ratio inside By this reduction device, 900rpm is secondly decelerated to about 100 ~ 250rpm, and the pulsator 4 is rotated to about 100 ~ 250rpm so that proper washing is possible. The third function is the brake function. When the door 20 of the washing machine is opened while rotating (900 rpm), the inner tub 3 is forcibly stopped within an appropriate time for the user's safety.

The top cover 17 includes a controller 19, a water supply valve 13, a water level sensor, a door switch, and the like, and the controller 19 includes a key input unit for inputting a function desired by the user, and a washing machine. A microprocessor for controlling the display unit, the water level detection unit, the door detection unit, the load driving unit, and the like indicating the progress state is provided.

In the conventional washing machine configured as described above, the user inserts laundry into the inner tub 3 in a state in which the user opens the door 20 installed on the upper part of the outer case 1, closes the door 20, and then puts it on the controller 19. When the provided mode is selected, washing, rinsing, and dehydration are automatically performed within a predetermined time according to the control signal generated by the controller 19.

That is, when the washing mode is selected, the water supply valve 13 is opened so that the wash water to be used for washing is supplied through the water supply valve 13, and the washing water supplied to the water supply flows directly into the inner tub 3 to be filled by a predetermined height. When the washing water to be used for the washing is filled in the inner tub 3 by a certain height, the water supply valve 13 is closed and further water supply is stopped and at the same time, a motor fixed to one side of the outer bottom surface of the outer tub 2 ( 5) is continuously repeated in the forward and reverse directions.

In this way, when the motor 5 is driven in the forward and reverse directions, this driving force is transmitted to the clutch 6 coupled to the center of the outer bottom surface of the outer tub 2 through the V-belt 9, that is, the motor 5. The motor pulley (7) axially coupled to the shaft is rotated by the driving force of the motor (5), and the clutch pulley (8) axially coupled to the rotating motor pulley (7) and the clutch (6) is a V-belt (9). Since it is connected by the driving force of the motor (5) is transmitted to the clutch (6).

At this time, as the clutch 6 transmits the driving force of the motor 5 only to the pulsator 4 in a decelerated state, the clutch 6 rotates the laundry in the inner tub 3 while rotating only the pulsator 4. Since the water flow is generated, the laundry is washed by the rotational force of the pulsator 4 and the frictional force between the inner periphery of the inner tub 2 and the decomposition force of the detergent.

That is, the washing shaft 10 and the dehydration shaft 11 coupled to the clutch 6 are separated from each other, so that only the pulsator 4 is stirred left and right by the washing shaft 10 to the pulsator 4. As the laundry rotates, water flow is generated and the laundry is washed.

When the washing operation is completed by the above-described action, the drain valve 14 installed in the drain hose 15 opens under the control signal of the controller 19, so the wash water used for washing is outcased through the drain hose 5. Drained outside of (1).

In addition, since the rinsing action is performed by the same action as the above-described washing at the time of rinsing, a specific action is omitted, and hereinafter, only the dehydration time will be described below.

At the time of dehydration, the clutch 6 receives the driving force of the motor 5 received through the V-belt 9 in one direction while draining the rinsing water used for rinsing to the inner tub 3 and the pulsator 4. Since the first reduced speed is transmitted, that is, the washing shaft 10 and the dehydration shaft 11 are combined, the inner tub 3 and the pulsator 4 are simultaneously rotated at high speed.

Accordingly, while the laundry in the inner tub 3 is pushed outward by the centrifugal force, the moisture contained in the laundry is discharged. At this time, the drain valve 14 is opened, so the moisture discharged from the laundry is discharged through the drain hose 15. When drained to the outside of the outer case (1) and thus dehydration is completed, all the actions of the washing machine are finished.

At this time, when the laundry is twisted during washing and is not released during the rinsing or draining stroke and the dehydration stroke is started, the inner tub 3 is eccentrically rotated because the laundry is biased to one side in the inner tub 1, and the eccentricity is caused. The inner tub 3 rotates and the outer tub 2 and the inner tub 3 collide with each other, causing vibration. The safety switch of the washing machine detects an unbalance of the inner tub 3 and stops the washing operation of the washing machine. Noise or noise.

When the motor 5 rotates, vibration is also generated by the gears of the clutch 6 and the like that decelerate the rotational force of the motor 5 and the rotational force of the motor 5.

That is, vibration generated when the inner tub 3 is eccentrically rotated due to the washing of the laundry to one side, and vibration generated by the motor 5 and the clutch 6 are transmitted to the outer tub 2. Vibration of the tub 3 is reduced by the balancer 12 installed on the upper portion of the inner tub (3), the vibration transmitted to the outer tub (2) between the outer case (1) and the outer tub (2) It is reduced by the damper 16 which is provided in plural and operate | operates, respectively.

However, such a conventional washing machine has a problem that the overall structure is complicated and not only the productivity is lowered, but also precision parts such as a clutch are used to increase the manufacturing cost of the washing machine and a defect such as a clutch may occur.

The present invention has been made in order to solve the above problems, the object of the laundry and dehydration in the washing machine to smoothly remove even if the clutch required for the conversion of the washing and dehydration mode in the washing machine.

In order to achieve the above object, an embodiment of the present invention provides a washing machine including an outer case, an outer tub installed in the outer case, and an inner tub rotatably installed in the outer tub; A motor is installed on the bottom surface of the outer tub, the motor pulley is axially coupled to the motor, the bottom surface of the inner tub is combined with the washing and dehydrating shaft, and the washing and dehydrating shaft is connected with the motor pulley by a V-belt. There is provided a washing machine characterized by being axially coupled to a shaft pulley.

According to another embodiment of the present invention, a washing machine includes an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsator rotatably installed on the bottom surface of the inner tub. To; A motor is installed on the bottom surface of the outer tub, and the motor pulley is axially coupled to the motor, the bottom surface of the inner tub is combined with the washing and dehydrating shaft, and the washing and dehydrating shaft is connected with the motor pulley by a V-belt. Combining the shaft pulley to be, the washing and dewatering is provided with a washing machine characterized in that the combined rotation of the washing shaft.

According to another embodiment of the present invention, a washing machine includes an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsator rotatably installed on the bottom surface of the inner tub. In the, the lower end of the outer tub is provided with a motor, the motor pulley coupled to the motor, the lower end of the inner tub coupled to the washing and dehydration shaft, the washing and dehydration shaft by the V-belt Coupling shaft pulley connected to the pulley, the groove and the upper surface of the washing and de-shrinkable to form a groove, the lower surface of the pulsator to form a pulsator shaft, the screw fastening screw is inserted into the lower surface of the pulsator shaft And an insertion groove into which a pulsator shaft is inserted into an upper surface of the groove to be coupled to a pulsator, and a lower surface of the groove. A seating groove into which the head of the head is seated, and a bushing formed with a screw insertion hole penetrating the insertion groove and the seating groove between the insertion groove and the seating groove, and the length of the outer periphery of the pulsator shaft and the inner periphery of the insertion groove. A washing machine is provided, which is formed by forming serrated projections in a direction.

According to a third embodiment of the present invention, a washing machine includes an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsator rotatably installed on the bottom surface of the inner tub. In the, the lower end of the outer tub is provided with a motor, the motor pulley coupled to the motor, the lower end of the inner tub coupled to the washing and dehydration shaft, the washing and dehydration shaft by the V-belt Coupling the shaft pulley is connected to the pulley, forming a groove on the upper surface of the washing and de-shrinkage, insert a bushing to be coupled to the pulsator in the groove, and press the bearing in which the bushing is pressed in the groove, The lower surface of the pulsator forms an insertion groove into which the upper portion of the bushing press-fitted into the inner diameter of the bearing is inserted, A cross section forms a seating groove into which the head of the screw is seated, a pulsator between the insertion groove and the seating recess forms a screw insertion hole penetrating the insertion groove and the seating recess, and a screw is inserted into the upper surface of the bushing. A screw fastening hole is formed, and an inner peripheral edge of the insertion groove and an outer peripheral edge of the bushing are provided with a washing machine, which is formed by forming a tooth-shaped protrusion in the longitudinal direction, respectively.

1 is a cross-sectional view schematically showing the structure of a conventional washing machine.

Figure 2 is a cross-sectional view of an embodiment schematically showing the structure of the washing machine of the present invention.

Figure 3 is a cross-sectional view of another first embodiment schematically showing the structure of the washing machine of the present invention.

Figure 4a is a cross-sectional view of another second embodiment schematically showing the structure of the washing machine of the present invention.

Figure 4b is a cross-sectional view showing a state in which the dehydration and washing shaft is coupled.

Figure 5a is a cross-sectional view of another third embodiment schematically showing the structure of the washing machine of the present invention.

5b and 5c show bushings.

5D and 5E show the pulsator axis.

Figure 6a is a sectional view of another fourth embodiment schematically showing the structure of the washing machine of the present invention.

6b and 6c show bushings.

6D and 6E show pulsators.

Explanation of symbols for main parts of the drawings

101: motor 102: washing and de-shrink

103: motor pulley 104: shaft pulley

105: screw 106: washing shaft

107: bearing 108: groove

109: bushing 110: pulsator shaft

111: insertion groove 112: seating groove

113: screw insertion hole 114: screw fastening

115: turning

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

Since the structure of the washing machine has been mentioned in the conventional configuration, overlapping portions thereof will be omitted, and only the same structure will be given the same reference numeral as the conventional structure.

Figure 2 is a cross-sectional view of an embodiment schematically showing the structure of the washing machine of the present invention, the present invention is an outer case (1), an outer tub (2) is provided in the outer case (1), the outer tub (2) The inner tub 3 is rotatably installed in the inner side.

One end of the outer surface of the tub 2 is provided with a motor 101 for generating a driving force, the motor 101 is a motor pulley 103 for transmitting the driving force of the motor 101 to the inner tub (3) Is coupled to the shaft, the center of the lower surface of the inner tub (3) is a single washing and dewatering shaft 102 is coupled, the washing and dewatering shaft 102 by the V-belt (9) motor pulley ( The shaft pulley 104 is connected to the 103 and receives the driving force of the motor 101 is coupled.

As another first embodiment of the present invention, as shown in Figure 3, the motor 101 for generating a driving force is provided on one side of the bottom surface of the outer tub 2, the motor 101 is provided with a motor 101 Motor pulley 103 for transmitting the driving force to the inner tub (3) is axially coupled, a single washing and dewatering shaft 102 is coupled to the center of the lower surface of the inner tub (3), the washing Combined with the dehydration shaft 102 is coupled to the motor pulley 103 by the V-belt (9) is coupled to the shaft pulley 104 receives the driving force of the motor 101.

The pulsator 4 is fixed to the bottom surface of the inner tub 3, and the pulsator 4 is integrally coupled to the bottom surface of the inner tub 3 by a plurality of screws 105.

In another second embodiment of the present invention, as shown in FIGS. 4A and 4B, an outer case 1 and an outer tube 2 are provided in the outer case 1, and the outer tube ( The inner tub 3 is rotatably installed in 2), and the pulsator 4 is rotatably coupled to the bottom surface of the inner tub 3.

One end of the outer surface of the outer tub 2 is provided with a motor 101 for generating a driving force, the motor pulley 103 is coupled to the motor 101, the lower surface of the inner tub (3) A washing and dehydrating shaft 102 is coupled to the center, and the washing and dehydrating shaft 102 is connected to the motor pulley 103 by a V-belt 9 to receive the driving force of the motor 101 (axial pulley) 104 is combined.

The washing shaft 106 is rotatably inserted through the washing-and-dehydrating shaft 102 so as to be coupled to the pulsator 4, and the inner circumferential edge of the washing-and-dehydrating shaft 102 and the washing shaft 106 are formed. A plurality of bearings 107 are forcibly pressed in between the outer circumference so that the washing-and-dewatering shaft 102 and the washing shaft 106 are rotated, respectively.

In a third embodiment of the present invention, as illustrated in FIGS. 5A to 5E, an outer case 1 and an outer tube 2 are provided in the outer case 1, and the outer tube is provided. An inner tub 3 is rotatably provided in (2), and a pulsator 4 is rotatably coupled to the bottom surface of the inner tub 3.

One end of the outer surface of the tub 2 is provided with a motor 101 for generating a driving force, the motor 101 is a motor pulley 103 for transmitting the driving force of the motor 101 to the inner tub (3) Is coupled to the shaft, the center of the lower surface of the inner tub (3) is a single washing and dewatering shaft 102 is coupled, the washing and dewatering shaft 102 by the V-belt (9) motor pulley ( The shaft pulley 104 is connected to the 103 and receives the driving force of the motor 101 is coupled.

The groove 108 is formed on the upper surface of the washing and dewatering shaft 102, and the bushing 109 is coupled to the pulsator 4 in the groove 108.

A pulsator shaft 110 is formed on the bottom surface of the pulsator 4, and an insertion groove 111 is formed on the top surface of the bushing 109 to insert the pulsator shaft 110.

The bottom surface of the bushing 109 is formed with a seating groove 112 through which the head of the screw 105 is inserted and inserted into the bushing 109 between the insertion groove 111 and the seating groove 112. A screw insertion hole 113 penetrating through the 111 and the seating groove 112 is formed, and a screw fastening hole 114 into which the screw 105 is inserted is formed at the lower surface of the pulsator shaft 110. have.

Serrated protrusions 115 are formed at the outer circumferential edge of the pulsator shaft 110 and the inner circumferential edge of the insertion groove 111 in the longitudinal direction, respectively.

In a fourth embodiment of the present invention, as shown in Figs. 6A to 6E, an outer case 1 and an outer tub 2 are provided in the outer casing 1, and the outer tub is installed. An inner tub 3 is rotatably provided in (2), and a pulsator 4 is rotatably coupled to the bottom surface of the inner tub 3.

One end of the outer surface of the tub 2 is provided with a motor 101 for generating a driving force, the motor 101 is a motor pulley 103 for transmitting the driving force of the motor 101 to the inner tub (3) Is coupled to the shaft, the center of the lower surface of the inner tub (3) is a single washing and dewatering shaft 102 is coupled, the washing and dewatering shaft 102 by the V-belt (9) motor pulley ( The shaft pulley 104 is connected to the 103 and receives the driving force of the motor 101 is coupled.

The groove 108 is formed on the upper surface of the washing and dewatering shaft 102, and the bushing 109 is coupled to the pulsator 4 in the groove 108.

The bearing 107 is forcibly pressed into the recess 108 of the washing and dewatering shaft 102, and the bushing 109 is forcibly pressed into the inner diameter of the bearing 107, and a lower end of the pulsator 4 is provided. An insertion groove 111 into which the bushing 109 through which the upper portion penetrates the inner tub 3 is inserted is formed on the surface thereof.

A seating groove 112 is formed on the top surface of the pulsator 4 in which the head of the screw 105 is seated and inserted into the pulsator 4 between the insertion groove 111 and the seating groove 112. A screw insertion hole 113 penetrating the insertion groove 111 and the seating groove 112 is formed, and a screw fastening hole 114 is formed in which the screw 105 is inserted and fastened to an upper surface of the bushing 109. It is.

Tooth-shaped projections 115 are formed at the inner circumferential edge of the insertion groove 111 and the outer circumferential edge of the bushing 109 in the longitudinal direction, respectively.

The operation of the present invention configured as described above is as follows.

First, since the water supply valve 13 installed in the washing machine is opened during washing of the washing machine, the washing water used for washing is supplied into the inner tub 3 through the water supply valve 13, and the water is supplied into the inner tub 3. When the wash water is filled to a certain height, the water supply valve 13 is closed, and no water is supplied any more, and the motor 101 installed on one side of the lower surface of the outer tub 2 continuously operates in the forward and reverse directions (left and right rotation). do.

The driving force of the motor 101 is transmitted to the motor pulley 103 axially coupled to the motor 101, the motor pulley 103 is rotated, the rotational force of the rotated motor pulley 103 is a V-belt (9) The shaft pulley 104 is rotated because it is transmitted to the shaft pulley 104 is connected to.

At this time, since the washing-and-dehydrating shaft 102 and the shaft pulley 104 coupled to the bottom surface of the inner tub 3 are coupled, the driving force of the motor 101 transmitted to the shaft pulley 104 is the washing force. It is transmitted to the dehydration shaft (102), and the washing and dehydration shaft (102) and the inner tub (3) are repeatedly rotated in the forward and reverse directions by the driving force of the transmitted motor (101).

As described above, the laundry contained in the inner tub 3 rotated in the forward and reverse directions is washed by the frictional force with the inner circumferential portion of the inner tub 3 and the decomposition force of the detergent.

In addition, during the dehydration, when the wash water washing the laundry contained in the inner tub 3 by opening the drain valve 14 is drained through the drain hose 15 to the outside of the washing machine, the motor 101 rotates in one direction. The washing and dewatering shaft 102 and the inner tub 3 are rotated in one direction, and the laundry contained in the rotating inner tub 3 is dewatered.

That is, when the motor 101 rotates in one direction, the shaft pulley 104 connected to the motor pulley 103 by the V-belt 9 together with the motor pulley 103 is also rotated in one direction and the shaft pulley rotated in the one direction. The inner tub 3 received by the driving force of the motor 101 by the 104 is also rotated at a high speed in one direction.

The laundry contained in the inner tub 3 is pushed outward in the inner tub 3 according to the rotational centrifugal force of the inner tub 3 which is rotated at high speed, and the washing water contained in the laundry comes out of the laundry.

At this time, since the drain valve 14 is in an open state, the wash water discharged from the laundry passes through the open drain valve 14 and is then drained to the outside of the washing machine through the drain hose 15 connected to the drain valve 14. .

3, in the other embodiment of the present invention, since the pulsator 4 is fixed to the bottom surface of the inner tub 3 by a plurality of screws 105, the outer tub 2 The driving force of the motor 101 installed on the lower surface of the power is simultaneously transmitted to the inner tub 3 and the pulsator 4 to wash and dehydrate the laundry.

That is, the driving force of the motor 101 generating the driving force in the forward and reverse directions (right and left rotation) during washing is transmitted to the shaft pulley 104 by the motor pulley 103 so that the shaft pulley 104 is rotated and the rotation is performed. Due to the shaft pulley 104 is the washing and dewatering shaft 102 is rotated continuously in the forward, reverse direction, because the inner tub (3) and the pulsator (4) is also rotated by the washing and dewatering shaft (102) The laundry contained in the inner tub 3 is washed.

Then, the driving force of the motor 101 to generate a driving force in one direction during dehydration is transmitted to the shaft pulley 104 by the motor pulley 103 so that the shaft pulley 104 is rotated, the rotating shaft pulley 104 The washing and dewatering shaft 102 is rotated in one direction, and the inner tub 3 and the pulsator 4 are also rotated in one direction at a high speed by the washing and dehydrating shaft 102. The laundry will be dehydrated.

That is, according to the driving force of the motor 101, the inner tub 3 and the pulsator 4 fixed to the bottom surface of the inner tub 3 are simultaneously rotated in the same speed and direction to wash and dehydrate the laundry.

And, as shown in Figure 4a and 4b in another second embodiment of the present invention, the washing and dehydration process of the washing machine described in one embodiment of the present invention is the same, so the description of the washing machine is omitted, and Only parts that are compared with one embodiment will be described.

As shown in FIGS. 4A and 4B, the driving force generated by the motor 101 installed at one side of the lower end surface of the outer tub 2 is transmitted to the motor pulley 103 so that the motor pulley 103 and the V-belt 9 are provided. The shaft pulley 104 is rotated because it is transmitted to the shaft pulley 104 connected by.

At this time, since the shaft pulley 104 is coupled to the washing and dehydrating shaft 102 coupled to the bottom surface of the inner tub 3, the driving force of the motor 101 transmitted to the shaft pulley 104 is the washing and dehydrating shaft. When delivered to the 102, the washing force by the driving force of the transmitted motor 101, washing and dehydration 102 and the inner tub (3) is repeatedly rotated in the forward and reverse direction to wash the laundry, when dehydration In the washing and dehydration shaft 102 and the inner tub (3) is rotated in one direction to dehydrate the laundry.

In this case, the washing shaft 106 coupled to the pulsator 4 through the washing and dewatering shaft 102 can be rotated freely through the bearing 107 to the washing and dewatering shaft 102. Since a plurality of bearings 107 are forcibly pressed between the inner circumferential edge of the washing and dewatering shaft 102 and the outer circumferential edge of the washing shaft 106, each of the bearings 107 causes the washing shaft 106 to wash and deshrink. Can rotate freely relative to 102.

Therefore, the pulsator 4 is rotated little by little to the rotational speed of the inner tub 3 due to the frictional force between the laundry and the wash water during washing, but the rotation of the pulsator 4 does not significantly affect the washing force. Sufficient washing is possible only by the left and right rotation of the inner tub 3.

In addition, since the laundry contained in the inner tub 3 which rotates at a high speed in one direction by the driving force of the motor 101 transmitted to the washing and dewatering shaft 102 is placed on the pulsator 4, the laundry is pulsator. (4) is rotated in the same direction as the rotation direction of the inner tub 3 to dehydrate the laundry.

5A through 5E, the driving force generated by the motor 101 installed at one side of the lower end surface of the outer tub 2 is transmitted to the motor pulley 103. The shaft pulley 104 is rotated because it is transmitted to the shaft pulley 104 connected by the motor pulley 103 and the V-belt 9.

At this time, since the washing and dehydrating shaft 102 and the shaft pulley 104 coupled to the bottom surface of the inner tub 3 are coupled, the driving force of the motor 101 transmitted to the shaft pulley 104 is washed and removed. Shrinkage (102), and the washing and dehydration (102) and the inner tub (3) and the pulsator (4) by the driving force of the transmitted motor 101 is rotated in the forward and reverse direction when washing the laundry After washing, dehydration of the laundry while rotating in one direction.

That is, the pulsator 4 of the pulsator 4 in the insertion groove 111 formed on the upper surface of the bushing 109 is inserted into the groove 108 formed on the upper surface of the washing and dewatering shaft 102 to be freely rotated. The pulsator shaft 110 is formed on the bottom surface and penetrates the bottom surface of the inner tub 3.

The pulsator shaft 110 inserted into the insertion groove 111 is inserted through the seating groove 112 and the screw insertion hole 113 of the bushing 109 and the screw fastening hole 114 of the pulsator shaft 110. Since the bushing 109 is fastened to the bushing 109 by the fastening force of the screw 105, the bushing 109 and the pulsator 4 are coupled to each other, wherein the inner circumferential edge of the insertion groove 111 and the outer circumferential edge of the pulsator shaft 110 are provided. Each of the protrusions 115 is formed in the longitudinal direction in the longitudinal direction so that the bushings 109 and the pulsator 4 are firmly coupled to each other by engaging the protrusions 115.

When washing in the combined state as described above, the washing and desorption 102 is rotated in the forward and reverse directions (left and right rotations) according to the driving force of the motor 101 generating the driving force in the forward and reverse directions. The inner tub 3 and the pulsator 4 are rotated in the forward and reverse directions by the washing and dehydrating shaft 102 that is rotated to wash the laundry.

In addition, when dewatering, the washing / dehydrating shaft 102 is rotated in one direction according to the driving force of the motor 101 generating the driving force in one direction, and the inner tub 3 is rotated by the washing-and-dehydrating shaft 102 rotating in the one direction. ) And the pulsator (4) is rotated in one direction to dehydrate the laundry.

Since the bushing 109 inserted into the recess 108 of the washing and dehydrating shaft 102 is free, the inner tub 3 and the pulsing force are caused by the rotational force and the laundry of the inner tub 3 which is rotated during washing and dehydration. The eater 4 is rotated in the same direction.

6A through 6E, the driving force generated by the motor 101 installed at one side of the lower end surface of the outer tub 2 is transmitted to the motor pulley 103. The shaft pulley 104 is rotated because it is transmitted to the shaft pulley 104 connected by the motor pulley 103 and the V-belt 9.

At this time, since the washing and dehydrating shaft 102 and the shaft pulley 104 coupled to the bottom surface of the inner tub 3 are coupled, the driving force of the motor 101 transmitted to the shaft pulley 104 is washed and removed. Shrinkage (102), and the washing and dehydration (102) and the inner tub (3) and the pulsator (4) by the driving force of the transmitted motor 101 is rotated in the forward and reverse direction when washing the laundry After washing, dehydration of the laundry while rotating in one direction.

That is, the bearing 107 is forcibly pressed into the inner circumference of the groove 108 formed on the upper surface of the washing and dewatering shaft 102, and then the bushing 109 is forcibly pressed into the inner diameter of the bearing 107. Bushing 109 inserted in 108 is rotated freely by bearing 107.

The bushing 109 is inserted into the insertion groove 111 formed in the lower surface of the pulsator 4 through the lower surface of the inner tub 3, the bushing 109 inserted into the insertion groove 111 It is coupled to the pulsator 4 by the fastening force of the mounting groove 112 of the pulsator 4, the screw insertion hole 113 and the screw 105 is inserted through the screw fastening hole 114 of the bushing 109. The inner periphery of the insertion groove 111 and the outer periphery of the bushing 109 are formed with tooth-shaped projections 115 in the longitudinal direction, respectively, so that the projections 115 are engaged with each other so that the bushing 109 is engaged with each other. And pulsator 4 are firmly coupled.

When washing in the combined state as described above, the washing and desorption 102 is rotated in the forward and reverse directions according to the driving force of the motor 101 generating the driving force in the forward and reverse directions. The inner tub 3 and the pulsator 4 are repeatedly rotated in the forward and reverse directions by the dehydration shaft 102 to wash the laundry.

In addition, when dewatering, the washing / dehydrating shaft 102 is rotated in one direction according to the driving force of the motor 101 generating the driving force in one direction, and the inner tub 3 is rotated by the washing-and-dehydrating shaft 102 rotating in the one direction. ) And the pulsator (4) is rotated in one direction to dehydrate the laundry.

The bushing 109 forcedly pressed into the inner diameter of the bearing 107 in the recess 108 of the washing and dehydrating shaft 102 is rotated freely by the bearing 107, so that the inner tub 3 rotates during washing and dehydration. The pulsator (4) is rotated in the same direction as the inner tub (3) by the rotation force and the laundry.

As described above, the present invention requires a motor capable of speed control in order to perform washing and dehydration operations, but at present, many motors capable of speed control such as BLDC motors or 2-speed DC motors are practically used, and thus, there is no problem in application.

Therefore, since the clutching function and the deceleration function are unnecessary, the conventional clutch can be removed, and since the washing machine can wash and dehydrate only the motor, the structure of the washing machine is simplified, and the number of parts used in the washing machine is remarkably increased. Since it does not use the clutch, which is a precision part, the material cost is reduced, as well as productivity is improved, and the defect rate is reduced.

Claims (5)

A washing machine comprising an outer case, an outer tub installed in the outer case, and an inner tub rotatably installed in the outer tub; A motor is installed on the bottom surface of the outer tub, the motor pulley is axially coupled to the motor, the bottom surface of the inner tub is combined with the washing and dehydrating shaft, and the washing and dehydrating shaft is connected with the motor pulley by a V-belt. Washing machine characterized in that it was made by axially coupled shaft pulley. The method of claim 1, Washing machine, characterized in that a separate pulsator is fixed to the bottom surface in the inner tub. A washing machine comprising an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsator rotatably mounted on a bottom surface of the inner tub; A motor is installed on the bottom surface of the outer tub, and the motor pulley is axially coupled to the motor, the bottom surface of the inner tub is combined with the washing and dehydrating shaft, and the washing and dehydrating shaft is connected with the motor pulley by a V-belt. Combining the shaft pulley is a washing machine, characterized in that the washing and dehydration by combining the washing shaft to rotate. A washing machine provided with an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsator rotatably mounted on a bottom surface of the inner tub, A motor is installed on the bottom surface of the outer tub, the motor pulley is axially coupled to the motor, the bottom surface of the inner tub is combined with the washing and dehydrating shaft, and the washing and dehydrating shaft is connected with the motor pulley by a V-belt. Combining the shaft pulley is formed, the upper surface of the washing and de-shrinkage to form a groove, the lower surface of the pulsator to form a pulsator shaft, the lower surface of the pulsator shaft to form a screw fastening hole is inserted into the screw In the groove, an insertion groove into which a pulsator shaft is inserted into an upper surface to be coupled to a pulsator, and a mounting groove into which a head of a screw is seated is inserted into a lower surface, and an insertion groove and a mounting groove between the insertion groove and the mounting groove. A bushing having a screw insertion hole formed therein is inserted therein, and a tooth-shaped projection in the longitudinal direction is formed at the outer circumferential edge of the pulsator shaft and the inner circumferential edge of the insertion groove. Washing machine, characterized in that formed by each. A washing machine provided with an outer case, an outer tub installed in the outer case, an inner tub rotatably installed in the outer tub, and a pulsator rotatably mounted on a bottom surface of the inner tub, A motor is installed on the bottom surface of the outer tub, the motor pulley is axially coupled to the motor, the bottom surface of the inner tub is combined with the washing and dehydrating shaft, and the washing and dehydrating shaft is connected with the motor pulley by a V-belt. Coupling the shaft pulley is formed, the upper surface of the washing and de-shrinkable to form a groove, and inserts a bushing to be coupled to the pulsator in the groove, in the groove to press the bearing in which the bushing is pressed, the pulsator On the bottom surface of the bearing is formed an insertion groove into which the upper part of the bushing is pressed into the inner diameter of the bearing, the upper surface of the pulsator forms a seating groove into which the head of the screw is inserted, and between the insertion groove and the seating groove The pulsator forms a screw insertion hole penetrating the insertion groove and the seating groove, and a screw fastening hole for fastening the screw is inserted into the upper surface of the bushing. Castle, and a washing machine, characterized in that the hayeoseo form a saw-tooth-shaped projections in the inner periphery and the outer periphery of the bushing has a longitudinal direction of the groove, respectively.