KR20000014023U - Washing machine with washing wheel dustproof wheel - Google Patents

Abstract

The present invention has a washing machine (1) provided with a dustproof hook rod structure (50) consisting of a rod (51) connecting the cabinet (3) and the reservoir (5) and a spring (61) attached to the lower end of the rod (51). A washing machine is provided with a plurality of dustproof wheels (31) rotatably attached in a circumferential direction around a bottom surface of a washing tank (9). By buffering through the cloud contact with the bottom of the reservoir, it is possible to suppress the vibration of the washing tank reservoir and the resulting operating noise.

Description

Washing machine provided with wheel for preventing vibration of washing tank

The present invention relates to a washing machine, and more particularly, a plurality of dust-proof wheels made of elastic materials such as rubber are attached to the bottom of the washing tank, and in a state of equilibrium, a slight distance from the bottom surface of the water storage tank is maintained. Likewise, even when the washing tank vibrates up and down and rotates relatively at a high speed with respect to the reservoir, the vibration of the washing tank is buffered and the noise caused by the contact of the bottom of the reservoir with the dustproof wheel is reduced. It relates to a washing machine having a washing tank vibration wheel.

In general, a washing machine includes a pulsator type using water flow due to the rotation of the pulsator, a rod type using contact with the laundry due to the rotation of the laundry rod, and a drum type using vertical dropping of the laundry due to the rotation of the drum. Type washing machines are the most widely used.

Here, the pulsator type washing machine, as shown in Figure 1, the cabinet 103 to form the outer body, the reservoir 105 is provided inside the cabinet 103 to accommodate a predetermined amount of the washing liquid, A plurality of washing liquid distribution holes 107 are formed at a side thereof, and a washing tank 109 installed inside the water storage tank 105, a pulsator 111 installed at the bottom of the washing tank 109 to generate water flow, and , A driving unit 113 for generating rotational force of the washing tank 109 and the pulsator 111.

The lid 117 is rotatably connected to one side of the opening of the upper panel 115 of the cabinet 103 by a hinge 119, and the operation of the washing machine 101 is controlled inside the upper panel 115. The control unit 121 is built in. In addition, a drain pipe 123 for discharging turbid water after washing is connected to one lower end side of the reservoir 105. And a detergent tank 127 connected to the water supply hose 125 is installed on one side of the upper end of the reservoir 105.

Therefore, the washing machine 101 configured as described above basically washes laundry through the following process. First, the laundry is put into the washing tank 109, and then a suitable amount of detergent is put into the detergent container 127, and when the water source such as a faucet connected to the water supply hose 125 is opened, the detergent container 127 is passed through the water supply valve 131. The water flowing into the) becomes a washing liquid mixed with a detergent and is filled to a predetermined height in the washing tank 109. Then, when the driving unit 113 is operated by the user's operation, the rotation of the pulsator 111 is started and rotational water flow is generated inside the washing tank 109 while repeating the forward and reverse rotation to wash the laundry. After rinsing and dehydration after the washing process, all washing processes are finished.

As such, the washing force of the washing machine 101 originates from the driving unit 113 mounted on the lower portion of the washing machine 101, and the driving unit 113 again rotates the driving shaft 135 of the driving motor 135 and the pulsator 111 to generate the rotational driving force. ) Is composed of a reduction gear assembly 137 and a transmission belt 139 for transmitting the rotational driving force of the driving motor 135 to the reduction gear assembly 137.

By the way, the general washing machine as described above elastically supports the water tank 105 on the top of the washing machine cabinet 103 in order to reduce the vibration of the water tank 105 and the operation noise of the washing machine caused by the rotation of the washing tank 109. It is provided with the dust-proof hanger rod.

As such a hanger rod, a dustproof hanger structure of a washing machine disclosed in Korean Utility Model No. 94-15946 has been proposed. This hanger structure is a support structure consisting of a rod 251, a cabinet connector 255, a reservoir connector 259, and a connection spring 261, as shown in FIG. 2, wherein the rod 251 is a cabinet 203. It is arranged up and down in the four spaces formed between the four corners of the reservoir and the reservoir 205, respectively, on the support frame 253 attached to the upper end of the cabinet inner peripheral surface and the hook piece 257 attached to the lower end of the outer peripheral surface of the reservoir Is coupled to connect the top of the cabinet 203 and the bottom of the reservoir 205.

In addition, the cabinet connector 255 is coupled to the upper end of the rod 251 is fixed to the upper side of the cabinet support frame 253 protruding toward the reservoir 205 on the upper cabinet 203. Reservoir connector 259 is coupled to the bottom of the rod 251 is fixed to the reservoir hook piece 257 protruding toward the cabinet 203 at the bottom of the reservoir 205, the spring (25) to elastically connect the rod (251) 261 is provided inside.

Accordingly, during the washing, rinsing, and dehydration processes, the spring 261 is elastically repeatedly compressed / extended in a process in which the reservoir 205 vibrates up and down or left and right due to the vibration of the washing unit and the rotation of the washing tank. While absorbing the vibration energy generated between the reservoir connection port 259 and the rod 251 fixed to the reservoir hook piece 257.

However, the above-described washing machine dustproof hook structure is a reservoir connector 259, a spring 261 that is built into the reservoir connector 259, the spring 261 is elastic between the rod 251 and the reservoir connector 259. Due to the complex structure of the damping unit 250 composed of a washer 263, a connector cap 265, and the like, the manufacturing process and the assembly process are complicated.

In addition, since the damping unit 250 has a structure in which the spring 261 is incorporated into the reservoir connector 259 and has a large diameter, the hook rod 251 is connected to the cabinet 203 and the connection point of the reservoir 205. When installed in an inclined state, as shown in FIG. 2, the protruding length of the reservoir hanger 259 is lengthened while maintaining a large space between the cabinet 203 and the reservoir 205, or as shown in FIG. 3. Since the depression 208 recessed inwardly should be provided at the bottom of the outer circumferential surface of the reservoir 205 where the damping unit 250 is located, the space inside the cabinet 203 may not be efficiently used, or the production of the reservoir 205 may be complicated. There was a problem with getting lost.

That is, when the space between the cabinet 203 and the reservoir 205 is increased, the effective washing volume of the reservoir 205 becomes small due to the presence of the damping portion 250 despite the large internal volume of the cabinet 203. Also, due to the depression 208 formed in the reservoir 205, the effective washing volume of the reservoir 205 is reduced, as well as the structure of the reservoir 205 is complicated, making the production complicated.

In addition, since the structure of the damping unit 250 has a structure mainly to attenuate the up and down vibration of the water storage tank 205, the lateral vibration of the washing tank and the storage tank generated during the rotation of the washing tank and the operation noise generated by the vibration. There was also a problem that could not be properly reduced.

Therefore, the present invention was devised to solve the problems of the conventional dustproof structure as mentioned above, while simplifying and miniaturizing the structure of the dustproof hanger rod, and made of an elastic material adjacent to the outer edge of the bottom of the washing tank. By mounting a plurality of dust-proof wheels in a rolling motion, the lateral fluctuations caused by the rotation of the washing tank are properly damped by contacting the bottom surface of the water tank and the dust-proof wheel, so that the largest proportion of the causes of the vibration generated in the water tank during the washing process. The purpose of the present invention is to reduce vibrations and noises generated during operation of a washing machine by suppressing vibrations caused by high-speed rotation of a washing tank.

1 is a side cross-sectional view of a typical pulsator type washing machine.

Figure 2 is a side cross-sectional view of a washing machine having a hanger for dust.

3 is a partial detailed cross-sectional view of the recess structure of the anti-vibration hanger rod and the reservoir shown in FIG.

Figure 4 is a schematic side cross-sectional view of a washing tank and a storage tank with a rubber wheel for dustproof according to the present invention.

Figure 5 is a schematic bottom view of the washing tank attached to the dust-proof rubber wheel shown in FIG.

* Description of the symbols for the main parts of the drawings *

1: washing machine 3: cabinet

5: water storage tank 9: washing tank

11 pulsator 13 drive unit

15: drive motor 31: anti-vibration wheel

33: fixed arm 35: rotary pin

61: spring 63: fluid

In order to achieve the above object, the present invention is a washing machine having a rod structure connecting a cabinet and a water tank and a dust-proof hook rod structure consisting of a spring attached to a lower end of the rod, the circumferentially rotating around the bottom of the washing tank. Provided is a washing machine having a plurality of dustproof wheels attached thereto.

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

As shown by reference numeral 1 in FIG. 4, the washing machine according to the present invention basically has a reservoir 5 to which the driving unit 13 is attached to the cabinet 3 and a washing tank 9 installed inside the reservoir 5. Has the same structure as a conventional washing machine having a.

That is, the water storage tank 5 for accommodating a predetermined amount of the washing liquid is provided in the cabinet 3 forming the outer body, and the washing tank 9 in which a plurality of washing liquid distribution holes 7 are formed on the side thereof is a water storage tank. (5) It is rotatably installed in the inside, and the bottom of this washing tank 9 is provided with the pulsator 11 which generate | occur | produces water flow in the washing tank 9 by the rotational drive force from the drive part 13, and the water storage tank The driving part 13 for rotating the washing tank 9 or the pulsator 11 is provided in the lower part of (5). In addition, the driving unit 13 is located at one side of the lower portion of the reservoir 5 to generate a rotational force, and is installed at the lower center of the reservoir 5 to the driving motor 15 through the electric belt 16. It consists of a reduction gear assembly 14 which transmits rotational force to the pulsator 11 and the washing tank 9.

In addition, in the space between the four corners of the cabinet (3) and the reservoir (5) by hooking the reservoir (5) to the cabinet (3) and at the same time a small hanger structure (50) to reduce the vibration of the reservoir (50) Bar hanger structure 50 is provided with a semi-spherical locking piece 53 hanging on a support frame 55 protruding from the upper end of the inner circumferential surface of the cabinet 3 and a reservoir hook piece protruding from the lower end of the outer circumferential surface of the reservoir. A rod (51) connected to the cabinet (3) and the reservoir (5) by a hemispherical reservoir connection port (59) secured to the rod (57), and the rod (57) between the protrusion (60) on the reservoir hook piece (57). It consists of the spring 61 which fits into 51 and supports the water tank hanger piece 57 elastically. At this time, a highly viscous fluid 63 such as grease is applied to the spring 61 between the hanger rod 51.

4 and 5, the washing machine 1 according to the present invention is provided with a plurality of anti-vibration wheels 31 at the bottom of the washing tank 9, which is shown in FIG. 5 in this embodiment. As shown in the figure, four dustproof wheels 31 are mounted at intervals of 90 ° with respect to the washing shaft.

Each of the anti-vibration wheels 31 is made of a resilient material such as rubber, and penetrates through the center of the fixed arm 33 and the fixed arm 33 which are arranged in the circumferential direction to the bottom of the washing tank 9 as shown. It is mounted to enable the rolling motion by the rotation pin 35 is inserted.

At this time, each of the anti-vibration wheel 31 may be made of a cylindrical or spherical shape, such as a general rolling wheel, and thus in linear contact with the bottom surface of the water storage tank 5 in the cylindrical state when the washing machine is not operating, In the case of a sphere, it is in point contact. Or between the dustproof wheel 31 and the reservoir 5 in a stationary state as shown in detail in FIG. 4 in order to reduce the contact resistance between the dustproof wheel 31 and the bottom of the reservoir 5 when rotating the washing tank 9. It is also possible to set the diameter of the anti-vibration wheel 31 so that the interval by the fine distance (d) is maintained.

According to the washing machine according to the embodiment of the present invention configured as described above, it is possible to reduce the vibration and noise caused by the shaking of the washing tank (9) as follows.

First, the rotational force of the drive motor 15 is transmitted to the reduction gear assembly 14 through the electric belt 16 in the washing stroke, rinsing stroke, dehydration stroke process in which the pulsator 11 or the washing tank 9 rotates. The reservoir 5 generates vibrations due to mass imbalance of the driving motor 15 and the reservoir 5, rotational movement of the pulsator 11 or the washing tank 9, and rotational flow of the washing water.

At this time, the spring 61 of the hook rod 50 is elastically repeatedly stretched between the hook rod 51 connected to the cabinet 3 and the reservoir connection port 59 connected to the reservoir 5, and is transmitted from the reservoir 5. Absorb vibration energy. In addition, even if the washing tank (9) swings in the longitudinal direction when rotating, the dust-proof wheel (31) is brought into contact with the instantaneous rolling movement on the bottom of the reservoir (5), so that the washing tank (9) is equilibrated quickly while alleviating the shock caused by the shaking. To return to the position.

That is, as shown in Figure 5, even if the washing tank (9) rotates in the direction of the arrow (A) while receiving a moment in the axial direction to swing left and right, the dust-proof wheel 31 is instantaneously with the bottom surface of the reservoir (5) By making a rolling motion in the direction of the arrow (B) while contacting, it is possible to prevent the shaking of the washing tank (9) to be transferred to the water storage tank (5) while minimizing the resistance to rotation of the washing tank (9), and the washing tank (9) ) Quickly returns to the equilibrium state, that is, the vertical arrangement state, and the vibration of the washing tank 9 causes vibration and resonance due to natural vibration or mass bias of the storage tank 5 or the driving motor 15, and the amplitude gradually increases. Can be prevented.

As discussed above, the present invention not only can simplify the fabrication and assembly of the hanger rod that elastically secures the reservoir to the cabinet, but also has a cylindrical or spherical dust-proof structure at the bottom of the washing tank that contacts the reservoir bottom or maintains a slight gap. When a plurality of wheels are mounted and the washing tank rotates to the left and right, the dust-proof wheel contacts the bottom of the water tank and generates a rolling motion. The high speed of the washing tank occupies the largest share of the causes of the vibration generated in the water tank during the washing process. By attenuating and suppressing vibrations due to rotation, vibrations and noises generated during operation of the washing machine can be greatly reduced.

In addition, since the washing tank can be maintained in an equilibrium state, that is, in a vertical arrangement state even at a high speed rotation, damage to the washing tank or the storage tank due to collision with other parts can be prevented in advance.

Although the present invention has been shown and described in connection with specific embodiments, it is common knowledge in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the appended utility model registration claims. Anyone who has a can easily know.

Claims (2)

In the washing machine (1) provided with a dustproof hook rod structure (50) consisting of a rod (51) connecting the cabinet (3) and the reservoir (5) and a spring (61) attached to the lower end of the rod (51). And a plurality of dustproof wheels (31) rotatably attached in a circumferential direction around the bottom of the washing tub (9). The washing machine according to claim 1, wherein the anti-vibration wheel (31) is spaced in line contact or point contact with the bottom surface of the water storage tank (5) when the washing machine is not operated or spaced apart by a fine distance (d).