KR100359841B1 - Drum washer having a half inner tube - Google Patents

Abstract

When washing to increase the washing effect by friction and stirring of the laundry and wash water.

To this end, the present invention relates to a drum washing machine, and a drum washing machine in which a semi-washing tank is formed in an inner tank so that washing water can be moved forward and backward and up and down simultaneously by rotating the semi-washing tank during washing and rinsing. to provide.

In addition, when washing and rinsing, only the semi-washing tank rotates, and when dewatering, the washing machine and the inner tank provide a drum washing machine characterized in that the clutch is mounted on the rear center of the outer tub at the same time.

Description

Drum washer having a half inner tube

The present invention relates to a drum washing machine, and more particularly, to a drum washing machine equipped with a semi-washing tank to improve washing power.

In general, a washing machine is a device that performs washing by rotating a laundry tub and laundry by receiving a driving force of a motor in a state in which detergent, washing water, and laundry are put in the washing tub.

Such a washing machine may include a pulsator washing machine and a drum washing machine as an example, and the configuration and operation thereof will be described in detail with reference to the accompanying drawings.

In general, as shown in Figure 1, the pulsator washing machine is installed in the outer tank (2) is fixed to the inside of the case 1, the inner tank (3) is rotatably installed inside the outer tank (2) In the inner tank 3, the pulsator 4 is installed to be rotatable.

A clutch 5, which is a power division transmission device, is provided at the center of the bottom surface of the outer tub, and the inner tank 3 and the pulsator () are formed on the dehydration shaft 21 and the pulsator shaft 22 constituting the clutch 5. 4) are each combined.

In addition, the motor 8 is fixed to the other side of the bottom surface of the outer tub 2 at a predetermined distance from the clutch 5, and the driving pulley 9 and the driven pulley are mounted to the motor 8 and the clutch 5. 10 is fixed to each other, and the belt 11 is connected to the driving pulley 9 and the driven pulley 10.

In the pulsator washing machine configured as described above, the power of the motor 8 is transmitted to the clutch 5 through the driving pulley 9-the belt 11-the driven pulley 10 to the inner tank 3 and the pulsator 4. ) Is divided into power so as to selectively rotate in a predetermined direction. In the washing process (including the rinsing process), the inner tank 3 is stopped and only the pulsator 4 is rotated in the forward and reverse directions. The inner tank 3 and the pulsator 4 are rotated at high speed at the same speed.

The configuration and operation of the clutch 5 mounted on the pulsator washing machine will be described in more detail. As shown in FIGS. 2 and 3, the dehydration shaft 21 and the pulsator shaft 22 are doubled inside and outside. A gear housing 91 is fixedly installed at the lower end of the dehydration shaft 21 as a shaft, and the gear housing 91 has a gear unit 92 for reducing the power from the motor 8. A gear shaft 93 is axially coupled to the central portion of the gear unit 92.

A lower portion of the gear shaft 93 is provided with a spring boss 95 and a clutch boss 96 having a serration 96a formed on the outer circumferential surface thereof, and the clutch boss 96 is provided inside the clutch boss 96. A clutch spring 97 is provided, the diameter of which is increased or returned to its original shape as the boss 96 rotates, and the outer side of the clutch boss 96 is in contact with the serration portion 96a of the clutch boss 96. The clutch lever 98 is elastically installed to be short-circuitable, and the brake lever for interlocking the clutch lever 98 while being rotated at an appropriate angle by the power of a drain motor (not shown) in the vicinity of the clutch lever 98 ( 99 is elastically installed.

In addition, the brake lever 99 is provided with a brake band 100 to surround the outer circumferential surface of the gear housing 91 for braking the gear housing 91 according to the rotation angle of the brake lever 99. The clutch lever 98 is fastened with a gap adjusting bolt 98a for adjusting the separation gap with the brake lever 99.

According to the pulsator washing machine configured as described above, after the laundry is put into the inside of the inner tank 3, when power is applied from the outside, the water supply, washing and dehydration process is controlled by a control means such as a microcomputer and proceeds automatically. Bar, when the drive pulley 9 is rotated by the driving of the motor 8 for the progress of the washing process (including the rinsing process), the driven pulley 10 is connected to the belt 11 is rotated.

The brake lever 99 is located in the direction of the center line of the clutch 5 when viewed in a plan view as shown in FIG. 3, and the brake lever 99 and the clutch lever 98 are spaced apart from each other so that the clutch lever ( The cam 98b provided at the end of 98 is in a state pushing the serration portion 96a formed on the outer circumferential surface of the clutch boss 96 by the elastic force of the clutch lever spring 98c in the circumferential direction.

Accordingly, the clutch spring 97 provided inside the clutch boss 96 is in a state where the diameter of the clutch lever 98 is pushed so that the clutch spring 97 is spaced apart from the outer circumferential surface of the spring block 95.

Thus, the rotational force of the motor 8 is transmitted to the driven pulley 10 by the belt 11, and then transmitted to the gear shaft 93 connected thereto, and the pelsator shaft 22 connected to the gear shaft 93 again. It is transmitted to the pulsator (4) through) to rotate the pulsator (4).

At this time, since the brake band 100 installed on the brake lever 99 is compressed to the outer circumferential surface of the gear housing 91 to restrain the gear housing 91, the brake band 100 of the dewatering shaft 21 connected to the gear housing 91 may be formed. As the rotation is controlled, the inner tank 3 comes to a stop.

On the other hand, when the dehydration mode signal is applied by the automatic program, the brake lever 99 is pulled in the left direction on the drawing by the driving of the drain motor, rotated about the axis 99a, and the clutch lever adjacent thereto. The brake lever 99 and the clutch lever 98 rotate in the same direction (left direction in the drawing) while being in contact with the gap adjusting bolt 98a of the reference numeral 98.

Accordingly, the clutch lever 98 is separated from the serration portion 96a of the clutch boss 96 while releasing the clutch boss 96 from the clutch spring 97 installed inside the clutch boss 96. The diameter decreases due to the restoring force of.

As the diameter of the clutch spring 97 decreases, the lower portion of the gear housing 91 located inside the clutch spring 97 and the spring block 95 are clamped at the same time.

At this time, when the gear shaft 93 received the driving force of the motor 8 rotates, the spring block 95 fixed to the gear shaft 93 rotates together with the gear shaft 93. The spring block 95 ) And the clutch spring 97 clamping the gear housing 91 exhibits a stronger clamping force to rotate the gear housing 91 without slipping because the clutch spring 97 rotates in the winding direction.

Therefore, the power transmitted to the clutch 5 during the operation of the motor 8 is transmitted not only to the pulsator shaft 22 but also to the dehydration shaft 21 to rotate the inner tank 3 and the pulsator 4 at high speed. Dehydration will proceed.

In the pulsator washing machine as described above, due to the stirring of the water flow generated as the pulsator is rotated, the dirt on the laundry is separated by friction with the water stream and the inner tank or decomposed by the detergent.

However, since only the pulsator rotates, the laundry is entangled in the center of the inner tank, causing tangling of the laundry, and the laundry close to the pulsator is mainly damaged by friction of the pulsator.

On the other hand, the drum washing machine can not only reduce the overall height compared to the pulsator washing machine, but also increase the washing capacity, and there is little problem such as twisting of the laundry, the demand is increasing.

As shown in FIG. 4, a general drum washing machine includes a tub 51 supported by a damper (not shown) and a spring (not shown) inside the main body 50 and a laundry placed in the tub 51 to store laundry. The cylindrical drum 52 which can be rotated is installed.

In addition, the driven pulley 54 is fixed to the drum shaft 52a at the center of the rear of the drum 52, and a motor 53 is installed at the bottom of the tub 51, and a drive pulley is provided at the motor 53. 55 is fixed and a belt 56 is connected to the drive pulley 55 and the driven pulley 54.

The drum washing machine configured as described above performs the following operation.

If the laundry mode to be washed into the drum 52 and the detergent is put in the washing mode provided in the control unit is selected, the washing process-rinsing process-dehydration process is performed continuously and the washing is completed.

That is, when the washing mode is selected, the water supply device is operated so that the washing water is supplied into the drum 52 rotatably installed in the tub 51. After the washing water is filled by the appropriate level, the water supply is stopped and the motor 53 Forward / reverse drive is repeatedly performed.

When the forward and reverse driving of the motor 53 is performed in this manner, the power of the motor 53 is transmitted to the drive pulley 55-belt 56-driven pulley 54 and the drum fixed to the driven pulley 54. It is transmitted to the drum 52 by the shaft 52a.

When the drum 52 applied to the power is rotated in the forward and reverse directions, when the drum 52 is buried in the laundry due to the fall of the laundry generated, the drum 52 is decomposed and washed.

On the other hand, after the washing process is completed, the rinsing process is performed while going through the same process as the washing process, the dehydration process is performed immediately after the rinsing process is completed, the drain means is operated during the dehydration process drum 52 After the water filled inside is completely drained, dehydration is performed while the moisture contained in the laundry comes out by the centrifugal force generated by the high speed rotation of the drum 52.

As such, the drum washing machine is a method of repeatedly washing the laundry lifted by the rotating drum received by the driving force of the motor 53 and falling by gravity, so that the laundry is hardly damaged and the laundry is tangled with each other. It can have the effect of tapping laundry.

However, since the washing process is performed only by the drop of laundry and washing water, the washing effect is not only lowered than the pulsator washing machine in which the washing process is performed by friction and stirring of the laundry and washing water, and the laundry is different in the inner tank during the dehydration process. There is an attached problem.

The present invention has been made to solve the problems according to the prior art, by configuring a semi-washing tank in the drum to increase the washing effect by adding the washing function by the stirring and friction of the laundry and wash water with the pulsator washing machine There is a purpose.

1 is a cross-sectional view schematically showing the configuration of a general pulsator washing machine.

Figure 2 is a cross-sectional view showing a clutch configuration used for a general pulsator washing machine.

3 is a bottom view of FIG. 2.

Figure 4 is a cross-sectional view showing the configuration of a general drum washing machine.

Figure 5 is a cross-sectional view showing the configuration of a drum washing machine having a semi-washing tank according to the present invention.

Figure 6 is a cutaway view showing the structure of the semi-wash tub of Figure 5;

Description of the main parts of the drawings

5: clutch 51: tub

52: drum 52a: drum shaft

59: semi-laundering tank 59a: semi-laundering tank

60: lift

Drum washing machine according to the invention to achieve the above object is characterized in that the semi-washing tank in the interior of the drum, characterized in that the clutch is mounted on the rear of the tub so that the semi-washing tank and the drum can be selectively rotated.

Hereinafter, with reference to Figures 5 and 6 showing a preferred embodiment of the present invention.

As shown in FIG. 5, the drum washing machine according to the present invention has a tub 51 supported by a damper (not shown) and a spring (not shown) inside the main body 50, and is located in the tub 51. A cylindrical drum 52 into which laundry can be put is rotatably installed, and one end of the drum 52 has a cylindrical semi-wash tub 59 for washing.

As illustrated in FIG. 6, the semi-wash tank 59 has a protruding lift 60 that continuously lifts laundry when the semi-wash tank 59 rotates.

In addition, a clutch 5, which is a power classification transmission device, is installed at the center of the rear surface of the tub 51.

The clutch 5 is the same as the configuration and operation of the clutch of the prior art, the detailed description thereof will be omitted.

However, in the pulsator washing machine was installed in the vertical direction, in the present invention was installed in the horizontal direction, the name of the pulsator shaft and the dewatering shaft is changed to the drum shaft 52a and the semi-washing tank shaft 59a, respectively.

The drum shaft 52a and the semi-washing tank 59a constituting the clutch 5 are respectively coupled to the drum 52 and the semi-washing tank 59 as internal and external double shafts.

In addition, a motor 53 is fixed to the bottom of the tub 51 at a predetermined distance from the clutch 5, and the driving pulley 55 and the driven pulley 54 are connected to the clutch 5 and the motor 53. Are respectively fixed, and the driving pulley 55 and the driven pulley 54 are connected by a belt 56.

In this drum washing machine, the power of the motor 53 is transmitted to the clutch 5 through the driving pulley 55-the belt 56-the driven pulley 54, and the clutch 5 is the drum 52. And the semi-washing tank 59 is to separate the power so as to selectively rotate in a predetermined direction, the washing process (including the rinsing process), the drum 52 is stopped and only the semi-washing tank 59 is rotated, dehydration process The drum 52 and the semi-wash tub 59 are configured to rotate at high speed at the same speed.

Referring to the operation of the drum washing machine having a semi-washing tank configured as described above in more detail according to the washing process as follows.

First, after the user puts laundry into the drum 52, and selects the desired washing mode and presses the start button, a water supply valve is opened to wash water and detergent to the drum 52, and the level of the washing water is When the set water level is reached, the water supply valve is shielded, and the driving of the motor 53 is started.

The driving force of the motor 53 is transmitted to the clutch 5 through the driving pulley 55, the belt 56, and the driven pulley 54 fixed to the motor 53.

After the driving force of the motor 53 is decelerated by the clutch 5, the driving force of the motor 53 is transmitted to the semi-washing tank shaft 59a so that the drum 52 stops and only the semi-washing tank 59 rotates.

At this time, the laundry is lifted in the rotational direction of the semi-washing tank 59 by the lift 60 formed on the inner wall of the semi-washing tank 59, and the laundry lifted to some extent is lifted by the gravity of the semi-washing tank 59. The washing is performed while falling inward.

Although the laundry is moved by the semi-washing tank 59 and the lift 60 formed in the semi-washing tank 59 during the washing process, the washing water is discharged by the centrifugal force generated by the rotation of the semi-washing tank 59. The laundry in the semi-laundry tank 59 is serially moved to the stopped drum 52 as it flows before and after.

That is, the laundry flows due to the water flow formed in the drum 52 during the rotation of the semi-washing tank 59. Accordingly, the laundry located in the area outside the semi-washing tank 59 of the drum 52 is semi-washing tank ( The laundry moved to 59 and located in the semi-wash tub 59 is moved to the area outside the semi-wash tub 59 inside the drum 52.

As a result of this repetition, agitation and friction with the washing water occur, so that the dirt on the laundry is decomposed well. Incidentally, the laundry that flows in the drum under the influence of the washing water may rub with the drum 52 a predetermined amount, and at this time, when the laundry is buried in the laundry, it is decomposed.

In addition, the laundry is lifted by the lift formed on the inner surface of the semi-washing tank 59, and when lifted to some extent, the laundry falls again to the inside of the semi-washing tank 59. In this process, the laundry is untwisted and the laundry is knocked out. do.

On the other hand, when the washing and rinsing process as described above is completed, the dehydration process is performed.

When the dehydration process is started, the driving force of the motor 53 is transmitted to the clutch 5 through the drive pulley 55-belt 56-driven pulley 54 fixed to the motor 53.

The driving force of the motor 53 is not decelerated by the clutch 5 and thus is transmitted to the semi-washing tank shaft 59a and the drum shaft 52a so that both the drum 52 and the semi-washing tank 59 rotate at high speed.

In the state where the driving force is not reduced, both the drum 52 and the semi-washing tank 59 are dehydrated while the moisture contained in the laundry is released by the centrifugal force generated by the high speed rotation.

As described above, the present invention constitutes a semi-washing tank in the drum, thereby making it possible to improve the washing performance by the friction action caused by the water flow generated during washing and the impact action applied to the laundry by the semi-washing tank.

In addition, a lift is formed on the inner surface of the drum so that the laundry is continuously lifted up and lifted to some extent and falls back to the inner surface of the semi-washing tank, thereby preventing twisting and damage of the laundry as in the conventional drum washing machine.

On the other hand, by mounting the clutch in the center of the tub rear to wash and rinse only the semi-washing tank to rotate, when dehydrating both the semi-washing tank and the drum to rotate.

Claims (3)

A main body forming an exterior, A tub supported by a damper and a spring in the main body, A cylindrical drum rotatably provided inside the tub; A drum washing machine having a semi-washing tank, characterized in that it is rotatably provided at one end of the drum and includes a cylindrical semi-washing tank provided with a lift at a predetermined interval on the inner circumferential surface thereof. The method of claim 1, Drum washing machine having a semi-wash tub, characterized in that it comprises a clutch mounted on the rear center of the tub. delete