KR20100079315A - Drum washing machine - Google Patents

Abstract

PURPOSE: A drum washing machine is provided to reduce an impact created as colliding a tub and a front gasket with a drum by installing the front gasket along the outer circumference of a front opening of a tub. CONSTITUTION: A drum washing machine comprises a cabinet which comprises a base plate, a tub which is fixed to the inner side of the cabinet and wherein a front opening is formed in the front side of the tub, a drum which is located in the inner side of the tub, and a front gasket(122) which is installed along to the outer circumference of the front opening of the tub and comprises an abrasion prevent protrusion(122a) in the inner surface faced to the drum.

Description

Drum Washing Machine {DRUM WASHING MACHINE}

The present invention relates to a drum washing machine, and more particularly, to a drum washing machine having an improved front gasket structure while increasing the capacity of the washing machine.

In general, a washing machine is an apparatus for washing laundry through a process of washing, rinsing, and dehydrating to remove contaminants from laundry contained in the drum by using the washing water and detergent supplied into the tub.

Looking at the washing process of the washing machine, first, the quantity of clothes and the like put into the drum is measured, and the quantity of washing water and detergent and the total washing time are set according to the measured quantity, and then washing through the rotation of the drum with the whole washing time. A wash stroke is performed to separate the stains from the laundry due to friction between the water and the laundry.

When the washing stroke is completed, the turbid wash water in the tub is discharged and a new washing water is supplied to the tub to perform a rinsing cycle of rinsing the laundry for a set number of times. When the rinsing stroke is completed, the water in the tub is discharged and the drum is rotated at a high speed to perform a dehydration stroke to remove the water of the laundry by centrifugal separation. After the dehydration is completed, the laundry may be further dried through a drying stroke.

However, in the conventional washing machine, vibration generated in a driving part such as a drum or a motor is directly transmitted to the tub during operation. As a result, the tub is bound to be spaced apart from the cabinet so that the vibrating tub does not interfere with the cabinet.

In the case where the capacity of the washing machine is to be increased, since the installation space is increased as the cabinet is enlarged due to the enlargement of the tub, it is necessary to improve the components and the fastening structure of the washing machine according to the size of the cabinet. Necessity has arisen.

The present invention was devised to solve the above problems, and an object thereof is to provide a drum washing machine having an improved front gasket structure while increasing the capacity of the washing machine.

Drum washing machine according to a preferred embodiment of the present invention to achieve the above object, the cabinet provided with a base plate; A tub fixed to the inside of the cabinet, the tub having a front opening into which laundry is introduced; A drum located inside the tub to accommodate laundry; And a front gasket installed along an outer circumference of the front opening of the tub and having a wear preventing protrusion formed on an inner surface of the tub.

In this case, the wear preventing protrusion is preferably at least one protrusion.

In addition, it is preferable that a plurality of protrusions are disposed below the front gasket so as to be spaced apart at regular intervals along the circumferential direction.

In addition, it is preferable that the through hole for drainage is formed in the lower portion of the front gasket.

On the other hand, the present invention, the rotating shaft connected to the rear of the drum; A tub back wall forming a rear portion of the tub and rotatably penetrating the rotating shaft; A bearing housing mounted to the tub back wall and supporting the rotating shaft; A rear gasket connected between the tub and the tub back wall; And buffer support means connected between the bearing housing and the base plate.

Drum washing machine according to the present invention, by improving the front gasket structure of the washing machine while increasing the capacity of the washing machine, it is possible to prevent the wear of the front gasket, it is possible to mitigate the impact due to the impact of the drum against the tub and the front gasket.

1 is a schematic perspective view showing a drum 130 washing machine according to a preferred embodiment of the present invention, Figure 2 is a side cross-sectional view showing the drum 130 washing machine of FIG.

Referring to the drawings, the drum 130 washing machine of the present invention is a cabinet 110 forming an appearance, the tub 120 is installed inside the cabinet 110, the wash water is stored, and the inside of the tub 120 Located in the drum includes a drum 130 for receiving laundry.

The cabinet 110 includes a front plate 113 forming a front surface and a base plate 112 forming a bottom surface. In addition, the cabinet 110 includes a rear plate 114, a side plate 115, and a top plate which respectively form a rear surface, both sides, and an upper surface thereof.

In this case, the front plate 113 is installed in front of the cabinet 110 facing the user, the inlet is provided to inject laundry, wherein the inlet is installed to be rotated in the cabinet 110 It is opened and closed by the door 117.

In addition, the base plate 112 is disposed on the bottom surface of the cabinet 110 in order to install other components in the cabinet 110.

In addition, the base plate 112 is preferably made of a metal plate in order to safely prevent the tub 120, the drum 130.

That is, the base plate 112, the tub 120 is seated and fixed to the tub support member 121 formed on the upper surface of the base plate 112, the drum 130 is also the base plate 112 by the buffer support member Since it is connected to the phase preventing paper, it is preferable that it is comprised from the metal plate with high bearing power.

In other words, the tub 120 is seated and fixed to the base plate 112 by the tub support member 121, and the drum 130 is also connected to the base plate 112 by the buffer support member, so that the base plate 112 concentrates the load of the tub 120 and the drum 130. For this reason, the base plate 112 is preferably made of a metal plate having a high bearing capacity for the load.

In addition, the tub 120 is located inside the cabinet 110 and is fixedly supported by the tub support member 121 connected to the base plate 112 of the cabinet 110.

The tub 120 has a front opening portion into which laundry is put in the front side, and a circular rear opening portion in the rear side.

The front opening portion is provided with a front gasket 122 along the rim, the rear opening portion is provided with a tub back wall 160 and a rear gasket 124 to be described later.

In addition, the tub support member 121 is configured such that the tub 120 is firmly fixed to the base plate 112.

That is, the tub support member 121 is configured on the upper surface of the base plate 112 and protrudes upward from the base plate 112 to a certain degree, so that the load of the tub 120 is uniformly distributed and supported. It is desirable to have four support points spaced apart.

As such, as the drum 130 is not installed directly on the tub 120 as the drum 130 is installed on the base plate 112 of the cabinet 110, the tub 120 does not directly receive the vibration of the drum 130. .

Because of this, the tub 120 can be installed so that the outer surface as close to the cabinet 110 as close as possible, the volume of the inside and the drum 130 accommodated by the tub 120 also increases, thereby receiving the laundry Improve your skills.

In addition, the upper side of the tub 120 to supply water from the external water source to the tub 120, a water supply hose installed on the water supply hose to control the water inlet, supply through the water supply hose Detergent supply device is installed so that the detergent is introduced so that the water is introduced into the tub 120 together with the detergent.

In addition, a drain hose and a drain pump are installed at the lower side of the tub 120 to discharge the wash water used for washing and rinsing to the outside.

On the other hand, the drum 130 has a lift 131 is installed on the inner circumferential surface to raise the laundry put into the drum 130 to a predetermined position, the through-hole 132 so that the washing water is discharged from the drum 130 in the washing stroke, such as dehydration ) Is formed.

In addition, the motor 151 mounted to the rear of the tub 120, that is, the rear side of the bearing housing 170 is coupled to the drum 130 through the rotation shaft 150 to rotate the drum 130.

Here, the rotating shaft 150 is connected to the rear of the drum 130 to interlock the drum 130, and is supported by the bearing housing 170 while passing through the center of the bearing housing 170 disposed at the rear.

Of course, the bearing housing 170 has a bearing therein to be rotatable while supporting the rotating shaft 150 horizontally.

The bearing housing 170 is rear-coupled to and fixed to the tub back wall 160 forming the rear portion of the tub 120.

The tub back wall 160 is configured to form a rear portion of the tub 120.

At this time, since the tub back wall 160 is configured to form the rear portion of the tub 120 in front of the bearing housing 170, the tub back wall 160 is formed in a circular shape corresponding to the circular rear opening of the tub 120.

As such, the tub back wall 160 rotatably penetrates the rotating shaft 150 at the center thereof, and serves to fix the rear bearing housing 170 to support the rotating shaft 150 connected to the drum 130.

The tub back wall 160 as described above is connected to the tub 120 by a flexible rear gasket 124 installed along the outer periphery of the rear opening of the tub 120.

On the other hand, the present invention, as shown in Figure 3, is connected to the base plate 112 to buffer the bearing housing 170, as a result further includes a buffer support means for buffering the drum 130.

The buffer supporting means includes a bracket portion fixed to the bearing housing 170, and a plurality of buffer supporting members respectively fastened to the bearing housing 170 and the bracket portion.

In this case, the bracket part is coupled to both lower portions of the bearing housing 170, respectively, and includes a first bracket 182 and a second bracket 184 extending forward.

The first and second brackets include first and second fixing part weights 182a and 184a and first and second support member brackets 182b and 184b.

Here, the first and second fixing part weights 182a and 184a are respectively fixedly installed at both upper ends of the lower portion of the bearing housing 170, and are vertically spaced apart from each other by a predetermined interval.

In addition, the first and second support member brackets 182b and 184b are connected to the lower ends of the first and second fixing part weights 182a and 184a to extend a predetermined length forward.

In addition, the buffer support member installed on the base plate 112 is installed below the first and second support member brackets 182b and 184b to prevent the first and second support member brackets 182b and 184b.

That is, the first shock absorbing support member 186a is vertically fixed to the front ends of the first and second support member brackets 182b and 184b, and the second shock absorbing support member 186b is fixed to the rear at a predetermined angle. Tilt and secure the installation.

In addition, a third buffer support member 186c installed vertically upward from the base plate 112 is fixed to the lower center portion of the bearing housing 170.

Of course, it should be understood that such a buffer support member is not limited by the present invention, and any conventional buffer support member is applicable as long as it can alleviate and absorb shock and vibration in a structure such as a washing machine.

The buffer supporting means configured as described above buffers the assembly including the drum 130, the rotating shaft 150, and the bearing housing 170, thereby the drum 130 and the motor 151 during operation of the drum 130 washing machine. Dampen vibrations

On the other hand, the front gasket of the present invention, as shown in Figure 4 and 5, has a wear preventing protrusion 122a formed on the inner surface facing the drum 130.

When the washing machine rotates when the drum 130 supported by the buffer supporting means rotates, the drum 130 contacts the front gasket 122 installed at the front opening of the tub 120 to generate friction.

That is, the tub 120 is fixed to the cabinet 110, while the drum 130 is configured to be movable within a predetermined range as supported by the buffer support means having a buffer support member, the drum 130 When the shaking is large, the drum 130 may contact the front gasket 122 of the tub 120.

Due to the contact of the rotating drum 130 with respect to the front gasket 122, the front gasket 122 and the drum 130 is generated friction, so that the front gasket 122 is worn over time do.

Furthermore, the rotating drum 130 hits the front gasket 122 at a predetermined speed or more, such that the drum 130 and the front gasket 122 and the tub 120 may be damaged.

In order to prevent damage to the parts due to the contact or hitting of the drum 130 to the front gasket 122 generated as described above, the wear-resistant projections on the inner surface facing the drum 130 of the front gasket 122 ( 122a) is formed.

The wear preventing protrusion 122a may be at least one protrusion, and a plurality of protrusions may be disposed below the front gasket 122 so as to be spaced apart by a predetermined distance along the circumferential direction.

As such, the present invention may prevent the wear of the front gasket 122 by forming the anti-corrosion protrusion 122a on the front gasket 122 and the drum 130 for the tub 120 and the front gasket 122. It can alleviate the impact caused by bumps.

Furthermore, the wear preventing protrusion 122a may delay the replacement of the front gasket 122.

That is, the front gasket 122 needs to be replaced after a certain period of time due to abrasion due to the friction with the drum 130. In order to replace the front gasket 122, the front part of the washing machine needs to be disassembled. Efficiency drops.

By delaying the replacement time of the front gasket 122 in terms of maintaining and maintaining the washing machine, the efficiency can be increased.

On the other hand, it is preferable that the through hole 122b for drainage is formed in the lower portion of the front gasket 122.

Since the front gasket 122 has a bent portion that is flexibly deformable, water is filled in the groove formed in the bent portion.

Thus, the front gasket 122, the through-hole 122b is formed so that the water accumulated in the groove formed in the bent portion can be drained to the outside.

Of course, the through hole 122b is not formed large enough to drain the water contained in the tub 120, but is formed to a size large enough to drain only water accumulated in the groove to the outside.

In the present invention configured as described above, by having a structure in which the tub 120 is fixed to the cabinet 110, the tub 120 can be enlarged to increase the capacity of the washing machine. It is possible to meet the need for improvement of the fastening structure of the parts to the washing machine.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a schematic perspective view showing a drum washing machine according to a preferred embodiment of the present invention.

Figure 2 is a side cross-sectional view showing the drum washing machine of FIG.

3 is a perspective view showing the buffer supporting means of the drum washing machine of FIG.

4 is a view showing that the front gasket is fastened to the tub in the front of the drum washing machine of FIG.

5 is a view showing the front gasket of FIG.

<Explanation of symbols for the main parts of the drawings>

110: cabinet 120: tub

122: front gasket 122a: wear protection protrusion

122b: through hole 130: drum

Claims (5)

A cabinet having a base plate; A tub fixed to the inside of the cabinet, the tub having a front opening into which laundry is introduced; A drum located inside the tub to accommodate laundry; And A front gasket installed along an outer circumference of the front opening of the tub and having a wear preventing protrusion formed on an inner surface of the tub; Drum washing machine comprising a. The method of claim 1, Drum wear washing machine, characterized in that the at least one protrusion projection. The method of claim 2, And a plurality of the protrusions are disposed below the front gasket so as to be spaced apart at regular intervals along the circumferential direction. The method according to any one of claims 1 to 3, Drum washing machine, characterized in that the through hole for drainage is formed in the lower portion of the front gasket. The method according to any one of claims 1 to 3, A rotating shaft connected to the rear of the drum; A tub back wall forming a rear portion of the tub and rotatably penetrating the rotating shaft; A bearing housing mounted to the tub back wall and supporting the rotating shaft; A rear gasket connected between the tub and the tub back wall; And Buffer support means connected between the bearing housing and the base plate; Drum washing machine comprising a further.

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