KR20140017340A - Gasket usable with laundry machine and laundry machine having the same - Google Patents

Abstract

Disclosed in the present invention is a gasket for a washing machine which has an improved structure in order to enhance the vibration reduction performance and reinforce the strength of a gasket, and a washing machine including the same. The washing machine comprises: a cabinet which has an opening for inputting laundry; a door which is installed in the cabinet in order to open or close the opening; a tub which is placed inside the cabinet; a drum which is placed inside the tub to be able to rotate; and a gasket which connects the tub and the cabinet in order to reduce the transmission of vibration in the tub to the cabinet when the drum rotates. The gasket includes: a body having a hollow unit which accommodates part of the door, and a circumference unit which surrounds the area of the hollow unit; and a strength reinforcing rib which is formed such that at least part of the circumference unit protrudes in order to reinforce the strength of the gasket. The back surface of the strength reinforcing rib is relatively concaved more than the inner surface of the adjacent circumference unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gasket for a washing machine,

The present invention relates to a gasket, and more particularly, to a gasket applicable to a washing machine.

A washing machine is a machine that processes clothes such as clothes, bedding, etc. using electric power. The washing machine includes a washing machine for removing the contamination of the laundry by washing water through interaction of water, a detergent and a rotating drum, and a dryer for drying the laundry wet by the hot air heated by the heater.

The washing machine includes a cabinet having an opening for inputting laundry, a door for opening and closing an opening of the cabinet, a tub disposed inside the cabinet for storing water, and a drum rotatably installed inside the tub . When the drum is rotated by the motor in the state that laundry and detergent water are supplied to the inside of the drum, the laundry is rubbed against the drum and the detergent water to remove the impurities from the laundry.

A gasket may be provided between the cabinet and the tub to prevent leakage of water and to prevent transmission of vibration to the cabinet during rotation of the drum.

The shape of the gasket connected to the tub is deformed by the flow of the tub generated when the drum rotates. Tub washing connected to the drum may vibrate due to the phenomenon that the laundry is biased due to the drum rotation and the drum rotation during the washing operation. In the process of absorbing the vibration of the tub, the shape of the gasket is transformed around the tub connection. In addition, the tub may vibrate by the high-speed rotation of the drum during dehydration stroke, and likewise, the shape of the gasket is deformed around the part connected to the tub in the process of absorbing the vibration of the tub.

If the gasket shape deformation caused by the washing and dehydrating stroke is severe, self-touch of the gasket may occur, and the wear and perforation of the gasket as the self-touch continues. This may cause the wash water in the tub to leak out.

One aspect of the present invention provides a washing machine gasket and a washing machine having the same, which is improved to reinforce strength while improving vibration reduction performance of the gasket.

According to an aspect of the present invention, a washing machine includes: a cabinet having an opening for injecting laundry; a door installed in the cabinet to open and close the opening; a tub disposed inside the cabinet; and the inside of the tub. A drum disposed rotatably; and a gasket connecting the tub and the cabinet to reduce the vibration of the tub from being transmitted to the cabinet when the drum is rotated, wherein the gasket includes a portion of the door. A body having a hollow portion and a circumferential portion surrounding the hollow portion; and a reinforcement rib formed by protruding at least a portion of the circumference portion to reinforce the strength of the gasket. The rear surface of is characterized in that it is provided relatively concave than the inner surface of the adjacent peripheral portion.

At least two or more strength reinforcing ribs may be disposed along the circumferential direction of the circumference portion.

The strength reinforcing rib may be provided in a rectangular band shape surrounding the circumference.

The body may include a first body portion coupled to the cabinet, a second body portion coupled to the tub, and a connection portion connecting the first body portion and the second body portion.

The strength reinforcing rib may be formed on at least a portion of the first body portion.

The strength reinforcing rib may be formed on at least a portion of the second body portion.

The strength reinforcing rib may be formed on at least a portion of the first body portion and the connecting portion.

The strength reinforcing rib may be formed on at least a portion of the second body portion and the connecting portion.

The thickness of the strength reinforcing rib may be substantially the same as the thickness of the connecting portion.

The thickness of the reinforcing rib may be thinner than the thickness of the connecting portion.

In addition, the gasket for a washing machine according to the spirit of the present invention, in the gasket connecting the tub of the washing machine and the tub disposed inside the cabinet, the cabinet coupling portion coupled to the first opening formed in the cabinet; and, the second formed in the tub A tub coupling portion coupled to the opening; and a coupling portion connecting the cabinet coupling portion and the tub coupling portion; and an outer surface and a rear surface of at least one portion of the coupling portion are bent in an outward direction of the coupling portion, and the coupling portion It characterized in that it comprises a; a plurality of ribs spaced apart along the circumferential direction.

The amount of the outer surface of the rib is bent in the outward direction of the connecting portion and the amount of the back surface of the rib is bent in the outward direction of the connecting portion may be substantially the same.

The amount of the outer surface of the rib is bent in the outward direction of the connecting portion may be relatively less than the amount of the back surface of the rib is bent in the outward direction of the connecting portion.

The rib may have a rectangular band shape in which the connection part is formed along the connection part in a direction connecting the cabinet coupling part and the tub coupling part.

The rib may include a convex portion whose outer surface is convex than the outer surface of the connecting portion, and a concave portion whose rear surface of the rib corresponding to the outer surface of the rib is concave than the inner surface of the connecting portion.

The depth of the concave portion may be greater than the height of the convex portion.

Strength reinforcing ribs are formed on the side surfaces of the gasket, and the rear surface of the strength reinforcing ribs is formed to be concave than the inner surface of the adjacent gasket, thereby improving the strength while improving the vibration reduction performance of the gasket.

In addition, the weight of the gasket is light, and the material cost is reduced.

1 is a view of a washing machine according to an embodiment of the present invention;
FIG. 2 is a cutaway view of a portion of a washing machine according to an embodiment of the present invention; FIG.
FIG. 3 is an enlarged view of a portion in FIG. 1; FIG.
4 is a perspective view illustrating a gasket according to an embodiment of the present invention.
5 is a rear perspective view of a gasket according to an embodiment of the present invention.
6 is a cutaway view of a portion of a gasket according to one embodiment of the present invention.
7 is a rear view of Fig.
8 is an enlarged view of a portion 'B' in FIG. 7;
9 is a cross-sectional view taken along line I-I of FIG.
FIG. 10 is an enlarged view of a portion 'A' in FIG. 9; FIG.

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

FIG. 1 is a view showing a washing machine according to an embodiment of the present invention, and FIG. 2 is a cutaway view of a part of a washing machine according to an embodiment of the present invention.

1 and 2, the washing machine 1 includes a cabinet 10 forming an outer appearance, a tub 20 installed inside the cabinet 10 to store water, a tub 20, A drum 30 rotatably disposed in the drum 30, and a motor 40 driving the drum 30.

In the front frame 10a of the cabinet 10, an opening 12 is formed. The opening 12 of the front frame 10a is opened and closed by a door 50 provided on the front frame 10a. The door 50 includes a door glass 52 provided so as to see the inside of the drum 30 and a door frame 54 supporting the door glass 52.

Openings 22 and 32 are formed in the front portion of the tub 20 and the front portion of the drum 30 in correspondence with the openings 12 of the front frame 10a so that laundry can be inserted into the drum 30. [ .

A water supply pipe (60) for supplying wash water to the tub (20) is installed at an upper portion of the tub (20). One side of the water supply pipe (60) is connected to an external water supply source (not shown), and the other side of the water supply pipe (60) is connected to the detergent supply device (62). The detergent supply device 62 is connected to the tub 20 via a connection pipe 64. Water supplied through the water supply pipe (60) is supplied to the inside of the tub (20) together with the detergent via the detergent supply device (62).

A drain pump 72 and a drain pipe 74 for discharging the water inside the tub 20 to the outside of the cabinet 10 are installed in the lower part of the tub 20.

A plurality of through holes 34 for circulating washing water are formed around the drum 30 and a lifter 36 is mounted on the inner circumferential surface of the drum 30 so that the laundry can be raised and dropped when the drum 30 rotates. Respectively.

The motor 40 is mounted on the rear wall 24 of the tub 20. The motor 40 includes a stator 42 fixed to the tub 20 and a rotor 44 rotatably disposed around the stator 42. [ The rotor 44 rotates by electromagnetic interaction with the stator 42 and transmits the rotational force to the drive shaft 46.

The drive shaft 46 transfers the rotational force of the motor 40 to the drum 30. [ One end of the drive shaft 46 is connected to the drum 30 and the other end of the drive shaft 46 extends outside the rear wall 24 of the tub 20 to be coupled to the rotor 44.

A bearing housing (80) is installed on the rear wall (24) of the tub (20) to rotatably support the drive shaft (46). The bearing housing 80 may be made of aluminum alloy and may be inserted into the rear wall 24 of the tub 20 when the tub 20 is injection molded. Bearings 82 are provided between the bearing housing 80 and the drive shaft 46 so that the drive shaft 46 can rotate smoothly.

A gasket (100) is installed between the tub (20) and the door (50). The gasket 100 is disposed between the opening 12 of the front frame 10a and the opening 22 of the tub 20 and extends from the opening 12 of the front frame 10a to the opening 32 of the drum 30 Thereby reducing vibration transmitted to the front frame 10a when the drum 30 is rotated. A part of the gasket 100 is disposed between the door 50 and the front frame 10a to prevent the water in the tub 20 from leaking to the outside of the cabinet 10. [

The gasket 100 may be formed of an injection molded from a thermoplastic elastomer. Since the thermoplastic elastomer has elasticity like rubber at room temperature, the gasket formed of the thermoplastic elastomer can effectively damp vibrations transmitted from the tub 20 to the front frame 10a of the cabinet 10. [

The composition to be the raw material of the gasket 100 includes a thermoplastic styrenic block copolymer. As the thermoplastic styrenic block copolymer, one or more of styrene-ethylene-butylene-styrene (SEBS), styrene-ethylene-propylene-styrene (SEPS) and styrene- ethylene-ethylene-propylene-styrene .

In addition, a petroleum softening agent may be added to the composition for the gasket 100 in order to reduce the hardness of the thermoplastic elastomer composition. As the petroleum softening agent, naphthene or paraffin oil can be used.

The content of the softening agent may be 70 to 99 parts by weight based on 100 parts by weight of the styrene block copolymer. When the content of the softening agent is less than 70 parts by weight, sufficient hardening can not be attained. When the content of the softening agent is more than 99 parts by weight, oil tends to become sticky due to oil breeding and becomes stiff if it persists for a long period of time.

Further, a polyolefin may be added to the composition for gasket to improve the heat resistance of the thermoplastic elastomer composition. As the polyolefin to be added, one or more of linear and non-linear polyethylene and polypropylene can be selected and used, but polypropylene is preferable for improving heat resistance.

The content of the polyolefin may be 10 to 25 parts by weight based on 100 parts by weight of the styrene block copolymer. When the content of the polyolefin is less than 10 parts by weight based on 100 parts by weight of the styrene block copolymer, sufficient heat resistance can not be obtained. When the amount of the polyolefin exceeds 25 parts by weight, elastic recovery of the elastomer is deteriorated.

Further, a heat-resistant polymer may be added to the composition for gasket to improve the high-temperature tensile strength and the high-temperature elongation at break of the thermoplastic elastomer (stability at high temperature). As the heat-resistant polymer, polyphenylene oxide (PPO) or polyphenyl ether (PPE) or a modified product thereof may be used.

The content of the heat-resistant polymer may be 10 to 25 parts by weight based on 100 parts by weight of the styrene block copolymer. When the content of the polymer is out of the range of 10 to 25 parts by weight, the high temperature tensile strength and the resilience after high temperature are remarkably decreased.

FIG. 3 is a partially enlarged view of FIG. 1, FIG. 4 is a perspective view illustrating a gasket according to an embodiment of the present invention, FIG. 5 is a rear perspective view of a gasket according to an embodiment of the present invention, to be.

2 to 5, the gasket 100 includes a body (not shown) disposed between the opening 12 of the front frame 10a and the opening 32 of the drum 30 when the gasket 100 is mounted on the washing machine 1 110). The body 110 includes a hollow portion 112 serving as a passage for loading and unloading laundry and a peripheral portion 114 and 116 surrounding the periphery of the hollow portion 112. The door glass 52 is received in the hollow portion 112 of the gasket 100 when the door 50 is closed.

The body 110 may include a cylindrical first body portion 110a and a second body portion 110b. The front end of the first body part 110a is coupled to the opening 12 of the front frame 10a and the rear end of the first body part 110a is positioned adjacent to the opening 22 of the tub 20.

The second body portion 110b has a diameter larger than that of the first body portion 110a. The rear end of the second body part 110b is coupled to the opening 22 of the tub 20 and the front end of the second body part 110b is positioned forward of the rear end of the first body part 110a. The peripheral portion 114 of the first body portion 110a is referred to as a first peripheral portion and the peripheral portion 116 of the second body portion 110b is referred to as a second peripheral portion.

The rear end of the first body part 110a and the front end of the second body part 110b are connected to each other through a connection part 118. [ The connecting portion 118 has a plurality of folded structures to effectively damp vibrations transmitted from the tub 20 to the cabinet 10. [

A cabinet coupling part 120 is provided at a front end of the first body part 110a to be coupled to the front frame 10a of the cabinet 10. [ The cabinet coupling part 120 includes a cabinet coupling groove 122 provided on a radially outer side of the first peripheral portion 114 and a first wire groove 124 provided on an outer side of the cabinet coupling groove 122. In the cabinet coupling groove 122, the rim of the front frame 10a forming the opening 12 is engaged. A wire 126 is coupled to the first wire groove 124 to prevent the gasket 100 from being disengaged from the cabinet 10.

A lip 140 is formed on the front end of the first body part 110a. The lip 140 protrudes from the inner surface 115 of the first circumferential portion 114 toward the hollow portion 112 and is formed in an annular shape along the circumferential direction of the first circumferential portion 114. The front face 142 of the lip 140 faces the door 50 and the rear face 144 behind the front face 142 faces the drum 30. [ When the door 50 of the washing machine 1 is closed, the front surface 142 of the lip 140 comes into contact with the door glass 52 to seal the door 50, To prevent leakage.

A tub coupling part 130 is provided at a rear end of the second body part 110b. The tub engagement portion 130 includes a first flange 131 extending from the second circumferential portion 116 toward the tub 20 and a second flange 132 extending from the second circumferential portion 116 toward the drum 30 ).

A tub engagement groove 133 is formed between the first flange 131 and the second flange 132 and a second wire groove 134 is formed on the outer surface of the first flange 131. In the tub engagement groove 133, the rim of the tub 20 forming the opening 22 is engaged. A wire 136 is coupled to the second wire groove 134 to prevent the gasket 100 from being separated from the tub 20.

A hardness measuring piece 150 is formed at the rear end of the second body portion 110b. The hardness measuring piece 150 includes a neck portion 152 protruding rearward from the end of the second flange 132 and a handle portion 154 connected to the neck portion 152. The neck portion 152 is formed thinly so that it can be easily separated from the end of the second flange 132. The operator grips the handle 154 and pulls the handle 150 with a constant force to separate the hardness measuring piece 150 from the gasket 100 and measure the hardness of the hardness measuring piece 150 to determine the hardness of the gasket 100 have. A plurality of the hardness measuring pieces 150 may be spaced apart along the periphery of the end portion of the second flange 132. The operator separates the plurality of hardness measuring pieces 150 from the gasket 100 and measures the hardness of the plurality of hardness measuring pieces 150 in a state where the plurality of hardness measuring pieces 150 are superimposed in the axial direction, You can find out.

The gasket 100 molded from a thermoplastic elastomer may have a hardness of 30 to 50 according to KS M 6518. When the hardness is less than 30, the mechanical strength such as tensile strength is weak. When the hardness exceeds 50, the effect of attenuating the vibration transmitted to the cabinet 10 is reduced.

 FIG. 6 is a partially cutaway perspective view of a gasket according to an embodiment of the present invention. FIG. 7 is a rear view of FIG. 6, and FIG. 8 is an enlarged view of a portion 'B' of FIG. 9 is a cross-sectional view taken along the line I-I 'of FIG. 4, and FIG. 10 is an enlarged view of a portion' A 'of FIG.

2 to 10, a strength reinforcing rib 180 for reinforcing the strength of the gasket 100 is formed on the side surface of the body 110.

The strength reinforcing ribs 180 are formed in such a manner that at least a portion of the second body portion 116 and the connecting portion 118 is bent toward the outside of the second body portion 116 and the connecting portion 118.

The strength reinforcing ribs 180 are formed in a rectangular band shape along the second body portion 116 and the connecting portion 118 and the outer surface 181 of the strength reinforcing rib 180 is formed on the outer surface of the second body portion 116 and the connecting portion 118 And the rear surface 182 corresponding to the outer surface 181 is in contact with the inner surfaces 116b and 118b of the second body portion 116 and the connecting portion 118 And a concave portion 184 that is formed more concavely. At least a portion of the convex portion 183 and the concave portion 184 are extended along the second body portion 116 by a predetermined length in the axial direction of the body 110 and at least another portion is formed by the connection portion 118, And extends inwardly of the body 110 by a predetermined length.

The convex portion 183 has a predetermined width w1 in the circumferential direction of the outer surfaces 116a and 118a of the second body portion 116 and the connecting portion 118 and the second body portion 116 and the connecting portion 118, Are formed to have a predetermined height h with respect to the outer surfaces 116a and 118a. The concave portion 184 has a predetermined width w2 in the circumferential direction of the inner surfaces 116b and 118b of the second body portion 116 and the connecting portion 118 and the second body portion 116 and the connecting portion 118, (D) with respect to the inner surfaces 116b and 118b.

As described above, the coupling portion 118 has a plurality of folded structures to effectively prevent vibration transmitted from the tub 20 to the front frame 10a of the cabinet 10. [ The connecting portion 118 converts the vibration energy of the tub 20 generated by the rotation of the drum 30 into heat energy, sound energy or the like through its own shape deformation and absorbs it. As shown in FIG. 10, when the tub 20 vibrates, the connecting portion 118 bends and deforms around the bent portion. At least a portion of the strength reinforcing rib 180 is extended in the axial direction of the drum 30 along the connecting portion 118 to reinforce the bending stress of the connecting portion 118 in the direction in which the connecting portion 118 is bent, Contact between the connection portion 118 and the first circumferential portion 114 of the first body portion 110a can be prevented before the gasket 100 is bent and the gasket 100 is worn out .

The amount h of the convex portion 183 or the amount of bending of the outer surface 181 of the strength reinforcing rib 180 in the outward direction of the second body portion 116 and the connecting portion 118 and the amount The relationship between the depth d of the reinforcing ribs 184 and the amount of bending of the back surface 183 of the strength reinforcing ribs 180 in the outward direction of the second body portion 116 and the connecting portion 118 depends on the design specifications of the gasket 100 ≪ / RTI >

It is necessary to adjust the height h of the convex portion 183 to be smaller than the depth d of the concave portion 184 in the case where a relatively high vibration reduction characteristic is required compared with the strength characteristic of the gasket 100 It is advantageous. This means that the thickness t1 of the strength reinforcing rib 180 is smaller than the thickness t2 of the second body portion 116 and the connecting portion 118. [ Since the amount of deformation of the connecting portion 118 increases as the thickness t1 of the strength reinforcing ribs 180 becomes smaller, the vibration transmitted to the front frame 10a of the cabinet 10 from the tub 20 is more effectively absorbed and reduced . Further, the weight of the gasket 100 is reduced by the portion where the recess 184 is formed, and the material cost required for manufacturing the gasket 100 is reduced.

On the other hand, in the case where a relatively high strength characteristic is required compared with the vibration reducing characteristic of the gasket 100, adjusting the height h of the convex portion 183 to be smaller than the depth d of the concave portion 184 It is advantageous. This is because the thickness t1 of the strength reinforcing rib 180 is substantially equal to the thickness t2 of the second body portion 116 and the connecting portion 118 or the thickness t2 of the second body portion 116 and the connecting portion 118 t2). The bending stress of the strength reinforcing ribs 180 is strengthened as the thickness t1 of the strength reinforcing ribs 180 is increased so that the deformation amount of the connecting portions 118 becomes smaller and the drum 30 rotates in the tub 20 Self-touch and interference between the connection portion 118 and the first peripheral portion 114 of the first body portion 110a, which may occur when the connection portion 118 is bent due to the self-deforming shape of the gasket 100, The noise due to self-touch is reduced.

In this way, the gasket 100 is prevented from interfering with the cabinet 100 from the tub 20 to the cabinet 100 with the strength so that the self-touch between the connection portion 118 and the first peripheral portion 114 of the first body portion 110a is prevented, The thickness t1 of the strength reinforcing ribs 180 and the thickness t2 of the second body portion 116 and the connecting portion 118 are set so as to effectively absorb vibration transmitted to the front frame 10a of the body 10 And can be adjusted between approximately 1 mm and 3 mm.

In addition, at least two or more of the strength reinforcing ribs 180 may be spaced apart from each other along the rotation direction of the drum 30. 7, the convex portion 183 and the concave portion 184 of the strength reinforcing rib 180 are expanded and contracted in the circumferential direction r of the gasket 100 in the course of the rotation of the drum 30, The vibration in the circumferential direction of the tub 20 generated in the process of rotating the drum 30 through the shape deformation of the convex portion 183 and the concave portion 184 is effectively damped.

The position where the strength reinforcing ribs 180 are formed is not limited to the second body portion 116 and the connecting portion 118. Although not shown, the position where the strength reinforcing ribs 180 are formed may be formed in at least a portion of the first body portion 114 and the connecting portion 118, or may be formed in at least a portion of the first body portion 114 And may be formed on at least a portion of the second body portion 116. And may be formed on at least a part of the first body part 114, the connection part 118, and the second body part 116. [

Although the gasket according to the present invention has been applied to the drum type washing machine, the present invention can be applied to clothes dryers, dryers, and washing machines.

1: Washing machine 50: Door
100: gasket 110: body
120: cabinet coupling part 130: tub coupling part
140: Lip 150: Hardness measurement piece
180: Strength reinforcing rib 183:
184: recess

Claims (21)

A cabinet including a front frame having an opening formed therein;
A door installed in the cabinet to open and close the opening;
A tub disposed inside the cabinet;
A drum rotatably disposed in the tub;
And a gasket connecting the tub and the front frame to reduce transmission of vibration of the tub to the front frame when the drum rotates,
In the gasket,
A body having a hollow portion for accommodating a part of the door and a peripheral portion surrounding the hollow portion;
And reinforcing ribs formed by protruding at least a portion of the circumference portion to reinforce the strength of the gasket.
And a back surface of the strength reinforcing rib is provided to be relatively concave than an inner surface of the adjacent circumference portion. The method of claim 1,
The strength reinforcing rib washing machine, characterized in that at least two or more spaced apart in the circumferential direction of the circumference. The method of claim 1,
The strength reinforcing rib is a washing machine characterized in that it is provided in a rectangular band shape surrounding the circumference. The method of claim 1,
The body is a washing machine comprising a first body portion coupled to the front frame and a second body portion coupled to the tub, and a connecting portion connecting the first body portion and the second body portion. 5. The method of claim 4,
The strength reinforcing rib is formed in at least a portion of the first body portion washing machine. 5. The method of claim 4,
The strength reinforcing rib is formed in at least a portion of the second body portion washing machine. 5. The method of claim 4,
The strength reinforcing rib is formed in at least a portion of the first body portion and the connecting portion washing machine. 5. The method of claim 4,
The strength reinforcing rib is formed in at least a portion of the second body portion and the connecting portion washing machine. The method of claim 1,
Washing machine, characterized in that the thickness of the reinforcing rib is substantially the same as the thickness of the connecting portion. The method of claim 1,
Washing machine, characterized in that the thickness of the reinforcing rib is thinner than the thickness of the connecting portion. A gasket for connecting a cabinet of a washing machine to a tub disposed inside the cabinet,
A cabinet coupling portion coupled to the first opening formed in the cabinet,
A tub engagement portion coupled to a second opening formed in the tub;
A connecting portion connecting the cabinet coupling portion and the tub coupling portion;
A plurality of ribs formed of an injection molding molded from a thermoplastic elastomer, the outer surface and the rear surface of at least a portion of the connection portion being bent in an outer direction of the connection portion and spaced apart along the circumferential direction of the connection portion;
It includes a gasket. 12. The method of claim 11,
And an amount in which the outer surface of the rib is bent in the outward direction of the connecting portion and an amount in which the rear surface of the rib is bent in the outward direction of the connecting portion are substantially the same. 12. The method of claim 11,
The amount of the outer surface of the rib is bent in the outward direction of the connecting portion is gasket, characterized in that less than the amount of the back surface of the rib is bent in the outward direction of the connecting portion. 12. The method of claim 11,
The rib is a gasket, characterized in that the connecting strip is formed in the shape of a rectangular strip extending along the connecting portion in the direction connecting the cabinet coupling portion and the tub coupling portion. 12. The method of claim 11,
The ribs
A convex portion whose outer surface is convex than that of the connection portion,
A gasket, characterized in that the rear surface of the rib corresponding to the outer surface of the rib comprises a concave portion formed concave than the inner surface of the connecting portion. 16. The method of claim 15,
The depth of the concave portion is greater than the height of the convex portion. A frame; and a tub disposed at the rear of the frame; a drum rotatably disposed inside the tub; and a gasket connecting the frame and the tub.
In the gasket,
Cabinet coupling portion coupled to the first opening formed in the frame; And,
A tub engagement portion coupled to a second opening formed in the tub;
A connecting portion connecting the cabinet coupling portion and the tub coupling portion;
And at least one rib formed by bending an outer surface and a rear surface of at least a portion of the connection portion in an outward direction of the connection portion.
The ribs
A convex portion whose outer surface is convex than that of the connection portion,
Washing machine, characterized in that the back surface of the rib corresponding to the outer surface of the rib comprises a concave portion formed concave than the inner surface of the connecting portion. 18. The method of claim 17,
And the convex portion and the concave portion extend at least one portion in the axial direction of the drum along the connecting portion. 18. The method of claim 17,
The gasket is injection molded into a thermoplastic elastomer. 19. The method of claim 18,
The thermoplastic elastomer comprises at least one of styrene-ethylene-butylene-styrene (SEBS), styrene-ethylene-propylene-styrene (SEPS), and styrene-ethylene-ethylene-propylene-styrene (SEEPS) Gasket for the processing unit. A cabinet including a front frame having an opening formed therein;
A door installed in the cabinet to open and close the opening;
A tub disposed inside the cabinet;
A drum rotatably disposed in the tub;
A gasket for connecting the tub and the front frame to reduce transmission of vibration of the tub to the front frame when the drum is rotated.
In the gasket,
A body having a hollow portion for accommodating a part of the door and a peripheral portion surrounding the hollow portion;
And reinforcing ribs formed by protruding at least a portion of the circumference portion to reinforce the strength of the gasket.
And a back surface of the strength reinforcing rib is provided to be relatively concave than an inner surface of the adjacent circumference portion.

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