KR100457555B1 - Tub-seal for drum washer - Google Patents

Abstract

Tub seal for a washing machine according to the present invention is to prevent the wash water leak between the tub body and the tub cover to form a plurality of small projections so that the surface area of the ring-shaped body portion, it is possible to minimize the drying time during the drying process during manufacturing Because of this, the deformation and roughness of the surface due to the moisture generated during drying is reduced to prevent product defects, thereby allowing a more firm sealing between the tub body and the tub cover at all times.

Description

Tub seal for washing machine {Tub-seal for drum washer}

The present invention relates to a tub seal for a washing machine that prevents leakage of the wash water supplied to a tub in which laundry is washed, and particularly, prevents deformation due to moisture generated when the seal is dried by forming a small protrusion on the outer surface of the seal. It relates to a tub seal for a washing machine.

In general, the drum washing machine washes by using the friction between the drum and the laundry rotated by the driving force of the motor while detergent, washing water, and laundry are put in a drum installed horizontally, and there is almost no damage to the laundry and the laundry does not get tangled with each other. Knocking and rubbing has a washing effect.

Recently, a laundry / dry combined drum washing machine is widely used to dry a laundry.

As shown in FIG. 1, the drum washing machine according to the related art has a tub 4 and a drum 6 inside the cabinet 2 and a drum 6 which rotates within the tub 4 and washes laundry placed therein. In front of the cabinet (2), a cabinet cover (1) having an input hole (h) through which laundry is introduced into and out of the drum (6) is installed, and the cabinet cover (1) is installed from the drum (6). In order to prevent the laundry from being separated, a door (not shown) is installed to be opened and closed by a door hinge assembly (not shown).

And, the upper side of the cabinet (2) is equipped with a water supply hose (8) for supplying the wash water to the tub (4) and the drum (6) and a water supply valve (10) for opening and closing the water supply hose (8), The lower side is equipped with a drain pump 12 and a drain hose 14 for draining the wash water filled in the tub 4 and the drum 6 to the outside.

The front of the tub (4) is equipped with a balance weight (16) for correcting the weight eccentricity of the tub (4) due to the electrical equipment mounted on the tub (4), the rear of the tub (4) And a motor 18 connected to the rotary shaft 17 to rotate the drum 6, and a spring 19 for absorbing vibration generated during the dehydration stroke of the drum washing machine at the upper and lower sides of the tub 4, respectively. And a damper 20 is mounted, the heater 22 is mounted on the lower side to adjust the temperature of the wash water.

The tub 4 is disposed at the rear of the cabinet 2 and the tub body 3 having the front portion opened, and a tub cover fastened to the front portion of the tub body 3 and mounted with the balance weight 16. 5, the tub body 3 and the tub cover 5 are fastened to each other by a plurality of clips (not shown), and a coupling portion h of the tub body 3 and the tub cover 5 is formed. The seal 24 is squeezed to prevent the wash water from leaking between the tub body 3 and the tub cover 5.

The coupling portion (h) is formed by the first and second bosses (3a, 5a) forming the outer periphery of the tub body (3) and the tub cover (5), the seal 24 is ring-shaped in appearance It is a hollow rectangular hollow cross section.

In addition, the seal 24 is elastically corresponding even when the coupling portion h is deformed or receives a compressive force in the coupling direction of the tub body 3 and the tub cover 5 so that the airtightness of the coupling portion h is always maintained. The protrusions 24a which are pressed against the first boss portion 3a and the second boss portion 5a are formed.

However, since the tub seal for a washing machine according to the prior art is made of a rubber material and undergoes a drying process after molding to a predetermined shape, water droplets are formed on the surface where the protrusions 24a are not formed due to moisture generated during drying. This rough or deformed shape is not completely in close contact with the coupling portion (h), the wash water supplied to the tub 4 is leaked, there is a problem that a product defect occurs.

The present invention has been made to solve the above problems of the prior art, and an object of the present invention is to provide a tub seal for a washing machine which prevents water droplets from condensing on the surface during drying in the manufacturing process of the seal.

1 is a cross-sectional view of a drum washing machine to which a tub seal according to the prior art is applied

2 is a sectional view of a drum washing machine to which a tub seal according to the present invention is applied;

3 is a cross-sectional view of a tub seal for a washing machine according to the present invention.

<Explanation of symbols on main parts of the drawings>

52: cabinet 54: tub

53: Tub Body 53a: First Boss Part

55: Tub cover 55c: Second boss part

56: drum 58: motor

60: water supply hose 62: drainage pump

64: drain hose 66: heater

68: controller 70: gasket

80: tub seal 82: body

84: projection of the first group 86: projection of the second group

The tub seal for a washing machine according to the present invention for solving the above problems is a body portion installed between the tub body having one surface is open and the tub cover coupled to the open one surface of the tub body; It is configured to include a plurality of projections formed on the front outer surface of the body portion.

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

As shown in FIG. 2, the drum washing machine to which the tub seal is applied according to the present invention has a tub 54 installed inside the cabinet 52 in which the door is installed, and a drum rotatably installed inside the tub 54. (56), the motor 58 is provided on the outer surface of the tub 54 and connected to the drum 56 and the rotary shaft 57, and supplies the wash water to the tub 54 and the drum 56 A water supply hose 60, a drain pump 62 and a drain hose 64 for discharging the wash water of the tub 54 and the drum 56, and a lower part of the inner surface of the tub 54 Heater 66 for adjusting the temperature of the controller, and the controller 68 and the detergent box 69 provided on the outside of the cabinet 52 and the like.

The tub 54 is coupled to the tub tub body 53 having one surface corresponding to the door and an open one side of the tub body 53 by a fastening member (not shown), and washing the laundry at the center part. And a tub cover 55 having a hole 55a formed therein so as to be inserted into or removed from the drum 56. When the tub cover 55 is coupled to the tub body 53, the tub cover 55 is inserted into the tub body 53 to be inserted into the tub body 53. A flange 55b may be further formed in close contact with the inner surface of the tub body 53, and a rubber gasket may be formed in the hole 55a of the tub cover 55 when the door installed in the cabinet 52 is closed. 70) is fitted.

The insertion portion 55b of the tub cover 55 is inserted into the tub body 53 to be in close contact with the inner surface of the tub body 53 to seal primarily between the tub body 53 side and the tub cover 55. .

Meanwhile, a rubber seal tub 80 is installed between the tub body 53 and the tub cover 54 to prevent water leakage. Accordingly, the tub body 53 is provided with the tub cover 55 side. A first boss portion 53a having one surface open at the tub cover 55 side is formed at an outer circumference, and the tub cover 55 is coupled with the tub body 53 and the tub cover 55 when the tub cover 55 is coupled to the tub cover 55. A second boss portion 55c having one surface open at the tub body 53 side is formed at an outer circumference of the tub body 53 side so as to cover an open surface of the boss portion 53a, and the tub seal 80 is formed. ) Is interposed in the space H between the first and second bosses 53a and 55c.

And, referring to the structure of the tub seal 80 with reference to Figures 2 and 3, the tub seal 80 is ring-shaped to seal the entire circumference of the tub body 53 and the tub cover 55 The formed body portion 82 and a plurality of protrusions 84 and 86 integrally formed on the front outer surface of the body portion 82 which may be in contact with the first and second bosses 53a and 55c.

The body portion 82 has a longitudinal cross section having a rectangular ring shape, and has an outer surface that may be in contact with the first and second bosses 53a and 55c. The plurality of protrusions 84 and 86 may be provided in the body portion 82. A first group of projections 84 formed on a pair of outer surfaces 82a and 82b facing each other in the axial direction (arrow S) of the tub body 53 among the outer surfaces of the body portion 82, and It consists of the 2nd group of projections 86 formed in the other pair of outer side surfaces 82c and 82d which oppose each other in the radial direction (arrow R) of the said tub main body 53 among the front outer sides of the body part 82. .

The first group of protrusions 84 are axial directions of the tub body 53 between the first and second bosses 53a and 55c when the tub body 53 and the tub cover 55 are coupled to each other. It is formed relatively large so as to receive a compression force (arrow S), and is always in close contact with the first boss portion 53a and the second boss portion 55c. The first group of protrusions 84 are provided on a pair of outer surfaces 82a and 82b which face each other in the axial direction (arrow S) of the tub body 53 among the front outer surfaces of the body portion 82. Each two tubs 53 are formed in a radial direction (arrow R) side by side so that airtightness can be maintained in duplicate.

The second group of projections 86 may allow the tub seal 80 to prevent the surface of the tub seal 80 from being deformed and roughened by moisture during the drying process of the tub seal 80. Since it should be dried quickly, it serves to widen the surface area of the tub seal 80 to minimize the drying time of the tub seal (80). Accordingly, the second group of projections 86 may be relatively larger in number than the first group of projections 84, and smaller than the first group of projections 84.

Meanwhile, reference numeral 51 denotes a damper 51 for attenuating vibration generated in the tub 54 when the drum washing machine is operated, and reference numeral 50 denotes a balance weight 50 for correcting the weight imbalance of the tub 54. .

Tub seal for a washing machine according to the present invention is configured as described above to prevent the wash water leak between the tub body and the tub cover to form a plurality of small projections so that the surface area of the ring-shaped body portion, the drying in the manufacturing process Since the time can be minimized, deformation and roughness of the surface due to moisture generated during drying are reduced, thereby preventing product defects, and thus, there is an advantage in that the tub body and the tub cover can be more firmly sealed at all times.

Claims (3)

A body part installed between a tub body having one surface open and a tub cover coupled to the open one surface of the tub body; Tub seal for a washing machine comprising a plurality of protrusions formed on the entire outer surface of the body portion. delete The method of claim 1, The plurality of protrusions include a first group of protrusions formed on a pair of outer surfaces of the front outer surface of the body portion that face each other in the axial direction of the tub body; It consists of a second group of projections formed on the other pair of outer surfaces of the front of the body portion facing each other in the radial direction of the tub body, The protrusion of the second group is formed smaller than the protrusion of the first group tub seal for a washing machine.