KR102137945B1 - Washing machine - Google Patents

Abstract

Disclosed is a washing machine having an improved structure so that a user can easily adjust the height and level of the washing machine. The washing machine according to the spirit of the present invention includes a leg installed at the rear of the bottom surface of a cabinet forming an exterior to adjust the level, and the leg moves along a rod facing the ground and the rod so as to extend toward the inside of the cabinet. To this end, a bracket coupled to the outer circumferential surface of the rod, a worm wheel coupled to the outside of the bracket to rotate integrally with the bracket, and a worm gear coupled to the worm wheel to transmit the driving force that the worm wheel rotates (WORM) GEAR), a shaft (SHAFT) extending from the worm gear toward the front of the cabinet and providing the driving force to rotate the worm wheel to the worm gear, and the worm wheel and the worm gear therein, and the cabinet and It may include a case coupled to the cabinet to move integrally.

Description

Washing machine {WASHING MACHINE}

The present invention relates to a washing machine, and more particularly, to a washing machine having an improved structure so that the user can easily adjust the height and level of the washing machine.

A washing machine is a machine that washes clothes using electric power. In general, a cabinet that forms the exterior of a washing machine, a tub that stores washing water inside the cabinet, a drum that is rotatably installed inside the tub, and a drum that rotates A motor for driving is provided.

When the drum is rotated by the motor while the laundry and the washing water are put inside the drum, the time when the laundry rubs against the drum and the washing water is removed.

The washing machine generally has a hexahedral shape, and a plurality of legs are installed at four corners to support the washing machine. A plurality of legs are installed in the washing machine in a bolted manner, and when rotated in one direction, the length is extended and when rotated in the other direction, the length is shortened, so that the height and level of the washing machine can be adjusted.

When the leg is rotated using a tool such as a spanner to adjust the height and level of the washing machine, the space between the floor and the floor of the cabinet may be reduced, resulting in reduced workability, and the load of the washing machine must be lifted. As great power is required. In addition, vibration and noise may occur as the cabinet moves up and down along the legs.

One aspect of the present invention provides a washing machine having a structure with improved work convenience so that the user can easily adjust the height and level of the legs located at the front and rear of the cabinet.

Another aspect of the present invention provides a washing machine having an improved structure to improve the durability of the legs by distributing the load of the cabinet.

The washing machine according to the spirit of the present invention includes a leg installed at the rear of the bottom surface of a cabinet forming an exterior to adjust the level, and the leg moves along a rod facing the ground and the rod so as to extend toward the inside of the cabinet. To this end, a bracket coupled to the outer circumferential surface of the rod, a worm wheel coupled to the outside of the bracket to rotate integrally with the bracket, and a worm gear coupled to the worm wheel to transmit the driving force that the worm wheel rotates (WORM) GEAR), a shaft (SHAFT) extending from the worm gear toward the front of the cabinet and providing the driving force to rotate the worm wheel to the worm gear, and the worm wheel and the worm gear therein, and the cabinet and It may include a case coupled to the cabinet to move integrally.

A first screw thread may be formed on an outer circumferential surface of the rod, and a first screw groove may be formed on the inner circumferential surface of the bracket so as to move the bracket up and down along the rod.

The first screw thread may be formed along the circumference of the rod to form at least one cut surface in the longitudinal direction of the rod.

A rod hole having the same cross-section as the rod is formed on the bottom surface of the case, and the rod may penetrate the rod hole and be coupled to the bracket.

The bracket may include a locking portion extending in a radial direction, and the worm wheel may be coupled to the bracket such that a fastening hole having a shape corresponding to the locking portion faces the outer peripheral surface of the locking portion.

A second screw groove having a shape corresponding to a second screw thread formed on the outer circumferential surface of the worm wheel is formed on the outer circumferential surface of the worm gear, and the worm gear may rotate about an axis passing through the worm gear.

The shaft may include a body that is inserted into a through hole formed in the worm gear and has a protrusion formed in the radial direction of the shaft on an outer circumferential surface.

In the extension portion extending from the worm gear toward the front of the cabinet, a fastening groove recessed toward the rear of the cabinet is formed, and the protrusion can be coupled to the fastening groove so that the worm gear rotates integrally with the shaft.

The shaft may further include a head extending from the body toward the front of the cabinet, and a recessed portion formed toward the rear of the cabinet so that one end of the shaft engages.

The shaft can be accommodated inside the tube to prevent contamination by foreign objects.

The washing machine according to the spirit of the present invention includes a leg installed at the rear of the bottom surface of a cabinet forming an exterior to adjust the horizontal, and the leg is a rod fixed to the ground so as to extend toward the inside of the cabinet, and moves along the rod To this end, a first bracket coupled to the outer circumferential surface of the rod, a worm wheel coupled to the first bracket and rotating integrally with the first bracket (WORM WHEEL), a worm gear coupled with the worm wheel to be rotatable about an axis ( WORM GEAR), one end facing the rear of the cabinet to rotate integrally with the worm gear is coupled to the axle, the other end facing the front of the cabinet is a shaft exposed outside, and the worm wheel and the inside It may include a case that receives the worm gear and is coupled to the inner peripheral surface of the cabinet so as to move integrally with the cabinet.

A first screw thread may be formed on the outer circumferential surface of the rod, and a first screw groove corresponding to the first screw thread may be formed on the inner circumferential surface of the first bracket so that the first bracket moves up and down along the rod.

The first screw thread may be formed along the circumference of the rod to form at least one groove in the longitudinal direction of the rod, and the at least one groove may be recessed toward the inside of the rod.

A second screw groove having a shape corresponding to a second screw thread formed on the outer circumferential surface of the worm wheel is formed on the outer circumferential surface of the worm gear, and the shaft can penetrate the worm gear and rotate integrally with the worm gear.

At one end of the shaft facing the front of the cabinet, a recess is formed recessed toward the rear of the cabinet, and the shaft can be coupled to the recess to rotate integrally with the shaft and the worm gear.

A case hole through which the shaft passes is formed on one side of the case facing the rear of the cabinet, and the rod may be coupled to the first bracket through a rod hole formed on the bottom surface of the case.

The first bracket may include a locking portion extending in a radial direction, and the worm wheel may be coupled to the first bracket so as to face the outer circumferential surface of the locking portion.

The leg may further include a second bracket coupled to the outer circumferential surface of the first bracket, and an elastic member may be positioned between the second bracket and the worm wheel.

The second bracket may be integrally formed with the cabinet so as to protrude toward the inside of the cabinet.

By using the shaft coupled to the shaft rotating integrally with the worm gear, the height and level of the legs located at the rear of the cabinet can be adjusted to improve user convenience.

By increasing the contact surface of the first bracket and the rod, it is possible to prevent the load caused by the weight and vibration of the cabinet from being concentrated on the first bracket or the worm wheel, thereby improving the durability of the entire leg.

1 is a perspective view showing the appearance of a washing machine according to an embodiment of the present invention
Figure 2 is a cross-sectional view showing the configuration of a washing machine according to an embodiment of the present invention
Figure 3 is a perspective view showing an enlarged portion of the washing machine so that the leg of the washing machine according to an embodiment of the present invention can be seen
Figure 4 is a bottom view showing the bottom surface of the washing machine according to an embodiment of the present invention
5 is a perspective view showing a state in which a leg positioned in front of a cabinet is coupled to a cabinet according to an embodiment of the present invention
Figure 6 is a cut-away perspective view showing the leg of Figure 5
7 is a cross-sectional view showing the leg of FIG. 5
Figure 8 is an exploded perspective view showing the leg of Figure 5
9 is a perspective view showing a state in which a leg positioned at the rear of the cabinet is coupled to the cabinet according to an embodiment of the present invention
Figure 10 is an exploded perspective view showing the leg of Figure 9
11 is a cut-away perspective view showing the leg of FIG. 9;
12 is a perspective view showing a state in which a leg positioned at the rear of the cabinet is coupled to the cabinet according to another embodiment of the present invention

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

1 is a perspective view showing the appearance of a washing machine according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the configuration of a washing machine according to an embodiment of the present invention. 3 is an enlarged perspective view showing a part of the washing machine so that a leg of the washing machine is visible according to an embodiment of the present invention, and FIG. 4 is a bottom view showing the bottom surface of the washing machine according to an embodiment of the present invention.

1 to 4, the washing machine 1 includes a cabinet 10 forming its appearance, a tub 20 for receiving wash water or rinsing water to be used for a washing process or a rinsing process, and receiving laundry. It includes a drum 30 and a driving motor 7 for rotating the drum 30.

The cabinet 10 is provided with a control panel 80 including input units 81a and 81b that receive an operation command of the washing machine 1 from a user and a display unit 83 that displays operation information of the washing machine 1.

The input units 81a and 81b receive user's commands related to the operation of the washing machine 1 such as washing time, rinsing frequency, dehydration time, drying time, operation and pause, and pressurized button 81a or rotary button 81b Can be employed. In addition, the display unit 83 displays information related to the operation of the washing machine 1, such as the amount of washing water, the stroke the washing machine 1 is performing, and the time remaining until the end of washing, and displays a liquid crystal display (LCD) panel. , Light Emitting Diode (LED) panels and the like can be employed.

The washing machine 1 according to an embodiment of the present invention is provided separately with the input units 81a and 81b and the display unit 83, but is not limited thereto and employs a touch screen panel (TSP) to input and display units. It may be provided in one piece.

In addition, the cabinet 10 includes frames 10a, 10b, 10c, and 10d, and the frames 10a, 10b, 10c, and 10d are the top surfaces of the cabinet 10a and the cabinet 10, respectively. , Front frame (10b) and rear frame (10c) constituting the rear, the front frame (10b) and the rear frame (10c) connecting the side frame (not shown) and the bottom frame forming the side and bottom surface of the cabinet 10 ( 10d).

On the front frame 10b of the cabinet 10, an inlet 2a is formed so that laundry can be introduced into the drum 30. The inlet 2a is opened and closed by a door 70 installed on the front frame 10b of the cabinet 10.

A spring 17 for supporting the tub 20 from the upper side may be provided between the tub 20 and the cabinet 10. The spring 17 serves to alleviate the vibration and noise caused by the flow of the tub 20 due to the elastic force.

A water supply pipe 13 for supplying washing water to the tub 20 is installed on the upper portion of the tub 20. A water supply valve 14 is installed at one side of the water supply pipe 13.

The detergent supply device 100 is connected to the tub 20 through a connection pipe 16. Water supplied through the water supply pipe 13 is supplied to the interior of the tub 20 together with the detergent via the detergent supply device 100.

The tub 20 is supported by a damper 150. The damper 150 connects the inner bottom surface of the cabinet 10 and the outer surface of the tub 20. In addition, the damper 150 may be positioned on the upper and left and right sides in addition to the inner bottom surface of the cabinet 10 to support the tub 20. The damper 150 or the spring 17 may mitigate vibrations and shocks generated from the vertical flow of the tub 20 at the top and bottom of the tub 20.

The tub 20 may be supported by at least one damper 150.

A driving shaft 11 for transmitting power of the motor 7 is connected to the rear surface of the drum 30. A plurality of through holes 27 for distribution of washing water are formed around the drum 30. A plurality of lifters 26 are installed on the inner circumferential surface of the drum 30 so that when the drum 30 rotates, lifting and falling of laundry are made.

The drive shaft 11 is disposed between the drum 30 and the motor 7. One end of the drive shaft 11 is connected to the rear plate of the drum 30, and the other end of the drive shaft 11 extends outside the rear wall of the tub 20. When the motor 7 drives the drive shaft 11, the drum 30 connected to the drive shaft 11 rotates around the drive shaft 11.

A bearing housing 8 is installed on the rear wall of the tub 20 to rotatably support the drive shaft 11. The bearing housing 8 may be made of aluminum alloy, and may be inserted into the rear wall of the tub 20 when injection molding the tub 20. Between the bearing housing 8 and the drive shaft 11, the bearings 9 are installed so that the drive shaft 11 can rotate smoothly.

In the lower portion of the tub 20, the drain pump 4 for discharging the water inside the tub 20 to the outside of the cabinet 10, and the water inside the tub 20 so that the water can flow into the drain pump 4 A connection hose 3 connecting the tub 20 and the drain pump 4 and a drain hose 5 for guiding the water pumped by the drain pump 4 to the outside of the cabinet 10 are provided.

A plurality of legs 1000 and 1100 may be installed on the bottom surface of the cabinet 10.

The plurality of legs 1000 and 1100 may include a plurality of legs 1000 positioned at the front of the cabinet 10 and a plurality of legs 1100 positioned at the rear of the cabinet 10.

A worm gear 500 and a worm wheel 400 may be provided on at least one of the plurality of legs 1000 positioned in front of the cabinet 10 to adjust the height and level of the washing machine 1. At least one of the plurality of legs 1100 located at the rear of the cabinet 10 has a worm gear 500, a worm wheel 400 and a worm gear 500 to adjust the height and level of the washing machine 1 from the front of the cabinet 10. The shaft 700 may be provided. Shaft 700 may be wrapped from the outside by a tube 710, the tube 710 may be coupled to the cabinet 10 by a coupling box (730). Description of the operation of the worm gear 500, the worm wheel 400 and the shaft 700 for adjusting the height and level of the washing machine 1 will be described later.

5 is a perspective view showing a state in which a leg positioned in front of a cabinet is coupled to a cabinet according to an embodiment of the present invention, and FIG. 6 is a cutaway perspective view showing the leg of FIG. 5. FIG. 7 is a cross-sectional view showing the leg of FIG. 5, and FIG. 8 is an exploded perspective view showing the leg of FIG. 5. The first bracket 300 may be used in the same sense as the bracket.

The leg 1000 may include a rod 200, a first bracket 300, a worm wheel (WORM WHEEL) 400, a worm gear (WORM GEAR) 500, and a case 800.

The rod 200 may be fixed to the ground so as to extend toward the inside of the cabinet 10. A base block 230 may be provided at one end of the rod 200 facing the ground, and the base block 230 may be formed of a material for absorbing vibration and noise of the washing machine 1.

A first screw thread 210 may be formed on the outer circumferential surface of the rod 200. The first screw thread 210 may be formed along the circumference of the rod 200 to form at least one cut surface 220 in the length direction of the rod 200. The first screw thread 210 formed on the rod 200 may be discontinuously formed along the circumference of the rod 200. In one embodiment, the cross section of the rod 200 may have a “D” shape. The first screw thread 210 may be formed in the longitudinal direction of the rod 200 along a curved portion in the cross section of the rod 200, and the cutting surface 220 may be loaded along a flat portion in the cross section of the rod 200 ( 200) in the longitudinal direction. The cross section of the rod 200 is not limited to the "D" shape.

In addition, the first screw thread 210 may be formed along the circumference of the rod 200 to form at least one groove (not shown) in the longitudinal direction of the rod 200. At least one groove may have a recessed shape toward the inside of the rod 200. The shape of the first screw acid 210 is not limited to the above example, and may be various.

The first bracket 300 may be coupled to the outer circumferential surface of the rod 200 to move up and down along the rod 200. The first bracket 300 may include a body 330 and a locking portion 340. The engaging portion 340 is coupled to the fastening hole 420 extending in the radial direction of the body 330 and formed in the worm wheel 400. The body 330 may have a cylindrical shape, and the locking portion 340 may have a polygonal shape, but the shape of the body 330 and the locking portion 340 is not limited thereto. A hollow 320 through which the rod 200 may penetrate may be provided in the body 330 and the locking portion 340 of the first bracket 300. A first screw groove 310 may be formed on the inner circumferential surface of the hollow 320 to be coupled to the first screw thread 210 of the rod 200. The first screw groove 310 may be continuously formed along the inner circumferential surface of the hollow 320 without the cutting surface 220 to the groove.

The worm wheel 400 may include a fastening hole 420 having a shape corresponding to the locking portion 340 of the first bracket 300. The fastening hole 420 is coupled to the outside of the locking portion 340 so that the worm wheel 400 and the first bracket 300 rotate integrally. A second screw thread 410 may be formed on the outer circumferential surface of the worm wheel 400.

The worm gear 500 may be combined with the worm wheel 400 to provide a driving force for the worm wheel 400 to rotate. Specifically, a second screw groove 510 having a shape corresponding to the second screw thread 410 of the worm wheel 400 is provided on the outer peripheral surface of the worm gear 500. The worm gear 500 and the worm wheel 400 are rotatable so that the second screw thread 410 and the second screw groove 510 mesh. The worm gear 500 may rotate around an axis 600 passing through the through hole 540 formed in the worm gear 500.

The shaft 600 may include a body 610 and a head 620.

The body 610 is inserted into the through hole 540 of the worm gear 500, and a protrusion 630 protruding in the radial direction of the shaft 600 may be formed on the outer circumferential surface of the body 610. The protrusion 630 is coupled to the fastening groove 530 formed in the extension 520 extending from the worm gear 500 toward the front of the cabinet 10. The fastening groove 530 may have a recessed shape toward the rear of the cabinet 10, and the projection 630 is coupled to the fastening groove 530, so that the worm gear 500 and the shaft 600 can rotate integrally. Do.

The head 620 extends from the body 610 toward the front of the cabinet 10. The head 620 may be formed with a recessed part () recessed toward the rear of the cabinet 10. A tool (not shown) may be inserted into the depression 640 to provide rotational force to the shaft 600.

The case 800 accommodates the worm wheel 400 and the worm gear 500 therein, and is coupled to the cabinet 10 to move integrally with the cabinet 10 along the rod 200. Specifically, the housing 800 is provided with an accommodation space 810 for accommodating the worm wheel 400 and the worm gear 500, and a road hole 820 is formed to allow the rod 200 to pass therethrough. Can. The rod hole 820 may have a shape corresponding to a cross section of the rod 200.

The shaft 600 coupled to the through hole 540 of the worm gear 500 may also be accommodated in the receiving space 810 of the case 800. Specifically, the head 620 of the shaft 600 is seated on the seating portion 850 facing the front of the cabinet 10 and exposed to the outside, and one end of the body 610 of the shaft 600 is the cabinet 10 ) May pass through the case hole 830 toward the rear.

A plurality of fixing pieces 840 extending outside the case 800 may be provided at an upper end of the case 800. The plurality of fixing pieces 840 may be provided with a plurality of fixing holes 841 to which the fixing members are fastened so that the case 800 is coupled to the cabinet 10 by a fixing member (not shown).

The case 800 may be coupled to the outer or inner surface of the cabinet 10. When the case 800 is coupled to the inner surface of the cabinet 10, the worm wheel 400, the worm gear 500 and the shaft 600 may be located inside the cabinet 10.

The leg 1000 may further include a second bracket 950.

The second bracket 950 may be coupled to the outer circumferential surface of the first bracket 300. An elastic member 900 may be positioned between the worm wheel 400 coupled to the locking portion 340 of the second bracket 950 and the first bracket 300. The elastic member 900 may prevent the worm wheel 400 coupled to the second bracket 950 and the locking part 340 from being worn. The elastic member 900 may be provided with an opening hole 910 to allow the body 330 of the first bracket 300 to penetrate.

The second bracket 950 may be integrally formed with the cabinet 10 so as to protrude toward the inside of the cabinet 10, but is not limited thereto.

The process of adjusting the height and level of the washing machine 1 with the leg 1000 located in front of the cabinet 10 is as follows.

When rotational force is provided to the worm gear 500, the worm wheel 400 rotates in engagement with the worm gear 500, and the first bracket 300 coupled to the worm wheel 400 rotates along the rod 200. Specifically, when the worm gear 500 is rotated clockwise, the worm wheel 400 rotates counterclockwise, and the first bracket 300 rotates integrally with the worm wheel 400 counterclockwise while rotating the cabinet ( 10) and the separation distance between the base block 230 is increased. When the worm gear 500 is rotated counterclockwise, the worm wheel 400 rotates clockwise, and the first bracket 300 rotates integrally with the worm wheel 400 in a clockwise direction while the cabinet 10 and the base are rotated. The separation distance of the block 230 becomes small. After adjusting the horizontal and the height of the washing machine 1, the first screw thread 210 formed on the rod 200 is engaged with the first screw groove 310 formed on the first bracket 300, so that the Level and height are maintained.

9 is a perspective view showing a state in which a leg positioned at the rear of the cabinet is coupled to the cabinet according to an embodiment of the present invention, and FIG. 10 is an exploded perspective view showing the leg of FIG. 9. 11 is a cut-away perspective view showing the leg of FIG. 9. Hereinafter, descriptions overlapping with those described in FIGS. 1 to 8 will be omitted.

9 to 11, the leg 1100 located at the rear of the cabinet 10 includes a rod 200, a first bracket 300, a worm wheel (WORM WHEEL) 400, a worm gear ( WORM GEAR 500, a case 800, and a shaft (SHAFT) 700.

The shaft 700 may provide the driving force of the worm wheel 400 to the worm gear 500. One end of the shaft 700 toward the rear of the cabinet 10 is coupled to the depression 640 formed in the head 620 of the shaft 600 to rotate integrally with the worm gear 500, the cabinet 10 ), the other end of the shaft 700 facing forward may be exposed to the outside. On the other end of the shaft 700 exposed to the outside, a tool coupling tool 720 may be formed to rotate the shaft 700 with a tool (not shown).

The shaft 700 may be accommodated inside the tube 710. The tube 710 may prevent the shaft 700 coupled to the cabinet 10 from being damaged by vibration of the cabinet 10. In addition, it is possible to prevent the shaft 700 from being contaminated by foreign substances. The tube 710 may include materials such as rubber and silicone to absorb shock.

A guide 860 protruding toward the front of the cabinet 10 is formed on one surface of the case 800 in which the seating portion 850 is formed. The tube 710 in which the shaft 700 is located is introduced into the guide 860 and engages the head 620 of the shaft 600 seated on the seating portion 850. At this time, the shaft 700 is inserted into the depression 640. The guide 860 may include a first guide 861 surrounding the tube 710 from the upper side and a second guide 862 surrounding the tube 710 from the lower side.

At least one coupling box 730 may be coupled to the tube 710. A plurality of fixing holes 731 may be formed in the at least one coupling box 730, and the tube 710 may be provided to the cabinet 10 by a fixing member (not shown) penetrating the plurality of fixing holes 731. Can be combined.

The process of adjusting the height and level of the washing machine 1 with the legs 1100 located at the rear of the cabinet 10 is as follows.

When the rotational force is provided to the shaft 700, the rotational force is transmitted to the worm gear 500 integrally moving with the shaft 700, and the worm wheel 400 rotates in engagement with the worm gear 500, to the worm wheel 400 The combined first bracket 300 rotates along the rod 200. Specifically, when the shaft 700 is rotated clockwise, the worm gear 500 rotates integrally with the shaft 700 in a clockwise direction, and the worm wheel 400 rotates in a counterclockwise direction, and the first bracket 300 ) Is rotated counterclockwise integrally with the worm wheel 400 to increase the separation distance between the cabinet 10 and the base block 230. When the shaft 700 is rotated counterclockwise, the worm gear 500 rotates integrally with the shaft 700 counterclockwise, the worm wheel 400 rotates clockwise, and the first bracket 300 is The degree of separation between the cabinet 10 and the base block 230 is reduced while rotating in a clockwise direction integrally with the worm wheel 400. After adjusting the horizontal and the height of the washing machine 1, the first screw thread 210 formed on the rod 200 is engaged with the first screw groove 310 formed on the first bracket 300, so that the Level and height are maintained.

12 is a perspective view showing a state in which a leg positioned at the rear of the cabinet is coupled to the cabinet according to another embodiment of the present invention.

As illustrated in FIG. 12, the case 800 of the leg 1100a located at the rear of the cabinet 10 may be coupled to the inner surface of the cabinet 10. When the case 800 is coupled to the inner surface of the cabinet 10, the tube 710 surrounding the worm wheel 400, the worm gear 500, the shaft 600, and the shaft 700 is inside the cabinet 10 It may be located at the front of the cabinet 10 toward the front, the shaft coupling hole 740 may be formed so that the tool coupling tool 720 formed at one end of the shaft 700 is exposed to the outside.

In the above, specific embodiments have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and a person skilled in the art to which the invention pertains may variously perform various changes without departing from the gist of the technical spirit of the invention described in the following claims. .

1: Washing machine 2a: Inlet
3: Connection hose 4: Drainage pump
5: drain hose 7: motor
8: Bearing housing 9: Bearing
10: cabinet 10a: top frame
10b: front frame 10c: rear frame
10d: bottom frame 11: drive shaft
13: water supply pipe 14: water supply valve
16: connector 17: spring
20: tub 26: lifter
27: through 30: drum
70: door 80: control panel
81a: Pressurized button 81b: Rotary button
83: display unit 100: detergent supply device
150: damper 200: rod
210: first thread 220: cut surface
230: base block 300: first bracket (bracket)
310: first screw groove 320: hollow
330: torso 340: jam
400: worm wheel 410: second screw thread
420: fastener 500: worm gear
510: second screw groove 520: extension
530: Fastening groove 540: Through hole
600: axis 610: body
620: head 630: projection
640: depression 700: shaft
710: tube 720: tool fitting
730: coupling box 731: fixing hole
740: shaft coupling hole 800: case
810: accommodation space 820: road hall
830: Case hole 840: Fixed piece
841: fixing hole 850: seating portion
860: Guide 861: First Guide
862: 2nd guide 900: Elastic member
910: Opening hole 950: Second bracket
1000: front leg 1100,1100a: rear leg

Claims (19)

In the washing machine including a leg that is installed on the bottom surface of the cabinet forming the exterior to adjust the horizontal,
The leg,
A rod facing the ground so as to extend toward the inside of the cabinet;
A bracket coupled to the outer circumferential surface of the rod to move along the rod;
A worm wheel coupled to the outside of the bracket to rotate integrally with the bracket (WORM WHEEL);
A worm gear (WORM GEAR) coupled with the worm wheel to transmit the driving force of the worm wheel rotating;
A shaft extending from the worm gear toward the front of the cabinet and providing the worm gear with a driving force that the worm wheel rotates (SHAFT); And
Includes a case that accommodates the worm wheel and the worm gear therein, and is coupled to the cabinet to move integrally with the cabinet.
The bracket includes a locking portion extending in the radial direction,
The worm wheel is a washing machine characterized in that the fastening hole having a shape corresponding to the engaging portion is coupled to the bracket so as to face the outer circumferential surface of the engaging portion. According to claim 1,
A first screw thread is formed on the outer circumferential surface of the rod,
A washing machine characterized in that a first screw groove coupled to the first screw thread is formed on the inner circumferential surface of the bracket so that the bracket moves up and down along the rod. According to claim 2,
The first screw thread is a washing machine characterized in that it is formed along the circumference of the rod to form at least one cut surface in the longitudinal direction of the rod. According to claim 3,
A rod hole having the same cross section as the rod is formed on the bottom surface of the case,
The washing machine, characterized in that the rod is coupled to the bracket through the load hole. delete The method of claim 4,
On the outer circumferential surface of the worm gear, a second screw groove having a shape corresponding to a second screw thread formed on the outer circumferential surface of the worm wheel is formed,
The worm gear is a washing machine characterized in that it rotates about an axis passing through the worm gear. The method of claim 6,
The shaft is inserted into a through hole formed in the worm gear, a washing machine characterized in that it comprises a body on the outer circumferential surface is formed with a projection protruding in the radial direction of the shaft. The method of claim 7,
In the worm gear, an extended portion extending toward the front of the cabinet is formed with a fastening groove recessed toward the rear of the cabinet,
The washing machine characterized in that the projection is coupled to the fastening groove so that the worm gear rotates integrally with the shaft. The method of claim 7,
The washing machine characterized in that it further comprises a head extending from the body toward the front of the cabinet and a recessed portion is formed toward the rear of the cabinet so that one end of the shaft is engaged. According to claim 1,
The washing machine, characterized in that the shaft is accommodated inside the tube to prevent contamination by foreign objects. In the washing machine including a leg that is installed on the bottom surface of the cabinet forming the exterior to adjust the horizontal,
The leg,
A rod fixed to the ground so as to extend toward the inside of the cabinet;
A first bracket coupled to the outer circumferential surface of the rod to move along the rod;
A worm wheel coupled to the first bracket and integrally rotating with the first bracket (WORM WHEEL);
A worm gear (WORM GEAR) coupled with the worm wheel to be rotatable about an axis;
One end facing the rear of the cabinet to rotate integrally with the worm gear is coupled to the shaft, the other end facing the front of the cabinet shaft (SHAFT) exposed to the outside; And
Includes a case that accommodates the worm wheel and the worm gear therein, and is coupled to the inner circumferential surface of the cabinet so as to move integrally with the cabinet.
The first bracket includes a locking portion extending in the radial direction,
The worm wheel is a washing machine characterized in that the fastening hole having a shape corresponding to the engaging portion is coupled to the first bracket so as to face the outer circumferential surface of the engaging portion. The method of claim 11,
A first screw thread is formed on the outer circumferential surface of the rod,
A washing machine characterized in that a first screw groove corresponding to the first screw thread is formed on the inner circumferential surface of the first bracket so that the first bracket moves up and down along the rod. The method of claim 12,
The first screw thread is formed along the circumference of the rod to form at least one groove in the longitudinal direction of the rod,
The washing machine, characterized in that the at least one groove is recessed toward the inside of the rod. The method of claim 13,
On the outer circumferential surface of the worm gear, a second screw groove having a shape corresponding to a second screw thread formed on the outer circumferential surface of the worm wheel is formed,
The washing machine characterized in that the shaft penetrates the worm gear and rotates integrally with the worm gear. The method of claim 14,
At one end of the shaft toward the front of the cabinet, a recess is formed recessed toward the rear of the cabinet,
The shaft is a washing machine, characterized in that coupled to the recess to rotate integrally with the shaft and the worm gear. The method of claim 15,
A case hole through which the shaft passes is formed on one side of the case facing the rear of the cabinet,
The rod is a washing machine characterized in that through the load hole formed on the bottom surface of the case is coupled to the first bracket. delete The method of claim 11,
The leg further includes a second bracket coupled to the outer peripheral surface of the first bracket,
A washing machine characterized in that an elastic member is positioned between the second bracket and the worm wheel. The method of claim 18,
The second bracket is a washing machine, characterized in that formed integrally with the cabinet so as to protrude toward the inside of the cabinet.

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