KR20070101732A - Drum washer - Google Patents

Abstract

A drum type washing machine is provided to enlarge volume of an internal part of a drum and to reduce number of components by supporting the drum only from a rear part not from both ends, thereby capable of improving productivity. A drum type washing machine comprises a cabinet, a tub(120), a drum(130), a driving unit, a bearing housing(128), and a suspension assembly. The cabinet forms an exterior appearance. The tub is fixed at the cabinet. The drum is rotatably installed in the tub. The driving unit is connected at one part of the drum by a rotary shaft. The driving unit generates driving force to rotate the drum. The bearing housing supports the rotary shaft of the driving unit. The suspension assembly is installed at a lower part of the bearing housing and supporting load of the drum for damping vibration of the drum. The suspension assembly is composed of at least one damper bracket, and damping units(180,190a, 190b). The damper bracket is installed at a lower part of the bearing housing. The damping units have at least one damper and is connected with the damper bracket and supporting the bearing housing.

Description

Drum Washing Machine {Drum washer}

1 is a cross-sectional view schematically showing the configuration of a conventional drum washing machine;

FIG. 2 is a sectional view taken along the line II-II of FIG. 1; FIG.

3 is a sectional view showing one embodiment of a drum washing machine of the present invention;

4 is an exploded perspective view showing a tub and a drum and a suspension assembly of one embodiment of a drum washing machine of the present invention;

FIG. 5 is a sectional view of the main damper of FIG. 4; FIG.

FIG. 6 is a sectional view of the sub-damper of FIG. 4; FIG.

7 is a sectional view showing another embodiment of the drum washing machine of the present invention;

8 is an exploded perspective view showing a tub and a drum and a suspension assembly of another embodiment of the present invention;

FIG. 9 is a sectional view showing an embodiment of the rear damper of FIG. 8; FIG. And,

10 is a cross-sectional view showing another embodiment of the drum washing machine of the present invention.

* Explanation of Signs of Major Parts of Drawings

16: base 40: motor

42: axis 80: main damper

82: cylinder 83: piston

84: friction member 85: spring

86: rubber bushing 90: sub-damper

92 cylinder 93 piston

94: friction member 100: cabinet

116: base bracket 120: tub

122: opening 128: bearing housing

130: drum 132: door assembly

160: suspension assembly 162: damper bracket

164: main damper bracket 166: sub damper bracket

168 rear damper bracket 170 damping unit

180: main damper 182: rear damper

190a, 190b: Sub Damper

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum washing machine, and more particularly, to a drum washing machine having an elastic member and a damper which reduce vibrations of a washing machine for accommodating laundry by integrating a cabinet and a tub in a cabinet of the same size.

1 is a cross-sectional view showing the internal structure of a drum washing machine according to the prior art, Figure 2 is a cross-sectional view taken along II-II of FIG.

As shown in FIG. 1 or FIG. 2, the drum washing machine according to the prior art includes a cabinet 1 including a base 1 a and a door 1 b, and a tub installed and fixed inside the cabinet 1. (2), a drum (3) rotatably installed inside the tub (2) for rotating the laundry (m) and the wash water by the lift (3a), and a motor (4) for rotating the drum (3). ), And a spring (5), a damper (6) and a balancer (7) for damping the vibration transmitted to the tub (2).

The drum 3 has a plurality of holes (3b) is formed so that the washing water stored in the tub (2) flows into the drum (3), the lift (3a) is formed on the inner surface of the drum (3), The lift 3a rotated together with the drum 3 moves the laundry m loaded inside the drum 3 together with the wash water.

The tub 2 is installed to be spaced apart from the inner surface of the cabinet 1 by a predetermined interval, and both sides of the upper end of the tub 2 are connected to each other by a spring 5 so as to be caught inside the cabinet 1. The damper 6 is hinged to the tub 2 and the base 1a to be supported on the upper surface of the base 1a, and the spring 5 and the damper 6 are mounted from the tub 2 to the cabinet. The vibration transmitted to (1) is canceled out.

And the door (1b) of the cabinet (1) is rotatably installed on the front (1d) so that the laundry (m) can be put, the front (2d) (3d) of the tub (2) and drum (3) Each of the openings 2c and 3c is formed to communicate with a hole (not shown) opened by the door 1b.

A gasket 8 is installed between the front surface 1d of the cabinet 1 in which the door 1b is formed and the front surface 2d of the tub 2 to prevent the outflow of washing water, and the gasket 8 Seals the space between the inner surface of the cabinet 1 and the front surface 2d of the tub 2.

The motor 4 is installed at the rear of the tub 2 to rotate the drum 3 installed inside the tub 2.

And the drum (3) is provided with a balancer (7) for balancing the rotating drum (3), the balancer (7) formed with a predetermined weight is provided to the drum (3) which is rotated at high speed when dewatered to provide centrifugal force This suppresses the drum 3 from vibrating.

However, the drum washing machine as described in the prior art has a problem that the volume of the cabinet 1 is too large compared to the internal volume of the drum 3 in which washing is actually performed.

That is, since the front and both side surfaces of the tub 2 installed inside the cabinet 1 are spaced apart from the cabinet 1 by a predetermined distance (a: Fig. 1, b: Fig. 2), the size of the cabinet 1 If constant, there is a problem that the volume inside the drum 3 is reduced.

The present invention is to solve the above problems, it is an object of the present invention to provide a drum washing machine that can maximize the volume of the drum in the same cabinet.

In addition, another object of the present invention to provide a drum washing machine having a support structure capable of more stably supporting the drum of the drum washing machine as described above.

In order to achieve the above object, the present invention provides a cabinet forming the main body appearance; A tub fixed to the cabinet; A drum rotatably provided in the tub; A driving unit generating a driving force for rotating the drum and coupled to a rotation shaft on one side of the drum; A bearing housing supporting a rotation shaft of the drive unit; It is provided on the lower side of the bearing housing is provided with a drum washing machine comprising a suspension assembly: for supporting the load of the drum and damping the vibration of the drum.

The suspension assembly may include at least one damper bracket provided at a lower side of the bearing housing; It comprises at least one damper, it is coupled to the damper bracket may be made of a damping portion for supporting the bearing housing :.

In addition, the damping unit supports at least one load of the drum, and at least one main damper for damping the vertical vibration of the drum; And a sub-damper for damping the horizontal vibration of the drum.

The damper bracket coupled to the main damper is bent toward the front of the tub from the lower both side portions of the bearing housing, and one end of the main damper may be coupled to an end thereof, and the damper coupled to the sub damper. The bracket is bent toward the front of the tub from the lower central portion of the bearing housing and is formed to extend a predetermined length, one end of the sub-damper may be coupled to the end thereof.

On the other hand, the damping unit supports the load of the drum, at least one main damper for damping the vertical vibration of the drum; And a rear damper: to damp the vertical vibration of the drum and prevent the drum from tilting to one side.

In this case, the installation position of each of the main damper and the rear damper is preferably installed to form a triangle in the plane.

The damper bracket coupled to the main damper extends from the bearing housing to the outer side of the outer circumferential surface on both sides of the lower portion of the tub along the radial direction of the tub, and is bent toward the front of the tub to extend a predetermined length. One end of the main damper is coupled to each other, and the damper bracket coupled to the rear damper extends vertically downward from the bearing housing, and one end of the rear damper may be coupled to an end thereof.

Here, the rear damper prevents the drum from tilting to the front side, the cylinder; A piston for damping vibrations while reciprocating in the cylinder; And a spring: supporting the piston, the spring having an elastic force when the piston is drawn out into the cylinder.

Therefore, according to the present invention, since the tub is fixed to the cabinet and does not flow, it is possible to increase the diameter of the tub, thereby increasing the capacity of the drum.

In addition, since the drum is not supported at both ends but is supported only at one side, the number of parts is reduced, cost reduction and productivity are improved, and the volume inside the drum can be secured to the maximum.

In addition, since the drum is more stably supported, the flow of the drum is suppressed to the maximum, thereby improving the reliability of the device.

Hereinafter, preferred embodiments of the drum washing machine of the present invention will be described with reference to the accompanying drawings.

3 and 4 is a view showing an embodiment of a drum washing machine of the present invention.

As shown in FIG. 3, the drum washing machine according to the present invention includes a cabinet 10 forming an external shape, a tub 20 installed directly coupled to a front surface of the inside of the cabinet 10, and a inside of the tub 20. A drum 30 positioned and rotatably installed, a motor 40 installed at the rear of the tub 20 to rotate the drum 30, and a rear surface of the tub 20 and the motor ( The bearing housing 28 supporting the shaft 42 of the 40 and the bearing housing 28 and the tub 20 are interposed between the bearing housing 28 and the tub 20 to seal the inside of the tub 20 and the motor 40. Shock absorbing means (50) for buffering the vibration or shock transmitted to the tub 20, and the suspension assembly 60 for supporting the drum 30 and damping the vibration or shock transmitted to the bearing housing (28) It is made to include.

In the cabinet 10, an opening (not shown) is formed on the front surface 11, and a door 12 is formed to open and close the opening, and the upper surface 13 elastically suspends the bearing housing. The top bracket 73 to which the member 72 is fixed is installed, and the base 16 forming the bottom of the cabinet 10 is installed.

As shown in FIG. 4, the tub 20 has a tub body 22 directly coupled to the inside of the front face 11 of the cabinet 10 so as to communicate with the opening of the front face 11 of the cabinet 10. The center is formed with an opening 23, the tub cover 24 coupled to the tub body 22 and the rear surface to surround the drum 30, and the opening 23 of the tub cover 24 are closed. The tub bracket 26 and the bearing housing 28 is assembled to the rear side of the tub bracket 26 to support the motor shaft 42.

3 and 4, the tub body 22 is aligned with the opening 21 of the tub body 22 so as to communicate with the opening of the front surface 11 by a screw 25. It is fixed to the cabinet 10 by being fastened. In addition, the tub cover 24 is assembled with the drum 30 inserted therein, and the screw 25 is formed in the fastening holes 22a and 24a formed on the outer circumference of the tub body 22 and the tub cover 24. ) Is fastened and assembled. And the opening 23 of the tub cover 24 is sealed by the tub bracket 26 and the buffer means 50, the bearing housing 28 of the tub bracket 26 by a screw 25 It is assembled on the back. Here, the bearing housing 28 is provided with a bearing (not shown) so that the motor shaft 42 rotates smoothly, and the motor shaft 42 is supported by the bearing.

The shock absorbing means 50 buffers the vibration or shock generated from the drum 30 and the motor 40 when the washing or dehydration is transmitted to the tub body 22, and the shock absorbing means 50 vibrates. Alternatively, the rear gasket 50 is formed of an elastic material that contracts or relaxes against impact, and is formed along the outer circumference of the tub bracket 26 to seal the opening 23. In this embodiment, the shock absorbing means 50 is implemented as a rear gasket for simultaneously implementing a sealing action and a buffering action between the tub cover 24 and the tub rack 26, the shock absorbing means 50 has a respective function It may be configured individually according to. Thus, unlike the present embodiment, a sealing member (not shown) having a sealing action is interposed between the tub cover 24 and the tub bracket 26, and the shock absorbing means 50 is connected to the bearing housing 28 and the tub bracket ( 26) may be interposed.

The motor 40 is assembled to the rear of the bearing housing 28, the motor shaft 42 is fixed to the rear of the drum 30 through the bearing housing 28, the tub bracket 26.

The drum 30 is rotated by the motor shaft 42, the inner surface of the drum 30 is provided with a plurality of lift 32 for moving the laundry. In addition, the front surface of the drum 30 is provided with a liquid balancer 34 for balancing to suppress the vibration of the drum 30 during dehydration.

Meanwhile, the suspension assembly 60 includes a damper bracket 62 coupled to the bearing housing 28 and a damping portion 70 coupled to the damper bracket 62 to support the bearing housing 28.

The damping unit 70 may include a main damper 80 supporting the weight of the drum 30 and attenuating vertical vibration, and a sub damper 90 attenuating the horizontal vibration of the drum 30. have.

Here, the damper bracket 62 may be divided into a main damper bracket 62 coupled to the main damper 80 and a sub damper bracket 62 coupled to the sub damper 90.

One end of the main damper bracket 62 coupled to the main damper 80 is fixed to both lower sides of the bearing housing 28, and the other end is parallel to the base 16 and faces the front of the tub 20. It is formed to be bent. The main damper 80 is coupled to the front end of the tub 20.

Here, the main damper 80 is preferably installed perpendicular to the base 16. The reason is that the main damper 80 supports the vertical load of the drum 30, the bearing housing 28, and the motor 40 and attenuates the vertical vibration.

That is, two main damper brackets 62 are provided from both sides of the bearing housing 28 toward the front of the tub 20, and the main damper 80 is also coupled to each main damper bracket 62. Dog is provided.

In addition, one end of the sub-damper bracket 62 coupled to the sub-damper 90 is fixed to the lower center portion of the bearing housing 28, and the other end is bent in parallel with the base 16, the tub 20 The predetermined length is extended to face the front of the. And, the end of the sub-damper 90 is coupled.

Here, the sub-damper 90 is made to attenuate the horizontal vibration of the drum 30, in particular, the tub 20 to attenuate the front / rear vibration generated when the drum 30 is excessively vibrated It is preferable to be installed so as to be inclined toward the front side direction of the.

The other end of the side coupled to the damper brackets 64 and 66 of the main damper 80 and the sub damper 90 may be directly coupled to the base 16 of the cabinet 10, but the base 16 may be deformed. In order to prevent this, a base bracket 116 (see FIG. 8) for strength reinforcement may be further provided between the base 16 and the dampers 80 and 90. Alternatively, a portion where the main damper 80 and the sub damper 90 of the base 16 are coupled may be formed for forming strength 16a.

And, as shown in Figure 5, looking at the configuration of the main damper 80, the cylindrical cylinder 82, the drum reciprocating the inside of the cylinder 82 in accordance with the movement of the drum 30 to damp the vibration It is preferably made of a piston 83, and a spring 85 for elastically supporting the piston 83.

In addition, the piston 83 is provided with a friction member 84 in contact with the inner circumferential surface of the cylinder 82 and the inner circumferential surface of the cylinder 82 as the piston 83 moves when the drum 30 vibrates. Friction is made to dampen vibrations.

Accordingly, the load applied to the main damper 80 is elastically supported by the spring 85, and the vibration transmitted from the main damper 80 is damped by the friction member 84.

The main damper bracket 62 of the main damper 80 is formed by a hinge coupling 87, and the other end of the main damper 80 is fixed by an elastic rubber bushing 86.

In addition, looking at the configuration of the sub-damper 90, as shown in Figure 6, the cylindrical cylinder 92, the piston 93 for reciprocating the inside of the cylinder 92 in accordance with the movement of the drum 30 and In addition, the piston 93 is provided with a friction member 92 which frictionally moves with the inner circumferential surface of the cylinder 92.

In addition, the sub-damper 90 is preferably both ends of the hinge coupling 97.

Therefore, the horizontal vibration of the front and rear of the drum 30 can be attenuated by the sub damper 90.

Here, the main damper 80 and the main damper bracket 62 is made of a hinge coupling, and both ends of the sub damper 90 is made of a hinge coupling, so that the drum can have a relative degree of freedom with respect to the movement of the drum 30 Vibration or flow of the 30 can be reduced from being transmitted directly to the cabinet 10.

Therefore, since the front surface of the tub body 22 is directly assembled with the inside of the front surface 11 of the cabinet 10, when the vibration or shock is transmitted to the tub body 22 integrally assembled with the cabinet 10, The tub body 22 itself is not only shaken by vibration or shock, but because the weight of the cabinet 10 is added, the rigidity of the tub 20 is increased, thereby improving the overall vibration characteristics of the drum washing machine.

The tub 20 is divided into a tub body 22, a tub cover 24, a tub bracket 26, and a bearing housing 28 by a rear gasket 50, which is a cushioning means, and the rear gasket (as described above). Tub 20 divided into two parts by 50) is the rear gasket to cushion the vibration or shock transmitted from the drum 30 or the motor 40 as a vibration source.

That is, the vibration or shock transmitted from the drum 30 or the motor 40 is buffered by the rear gasket 50 and then transmitted to the tub body 22 and the vibration transmitted to the tub body 22. The shock is attenuated or dampened by the rigidity and weight of the tub body 22 and the cabinet 10.

In addition, the vibration or shock generated from the drum 30 during washing and dehydration may include a motor shaft 42 connected to the drum 30, a tub bracket 26 on which the motor shaft 42 is supported, and a bearing housing 28. Is delivered). At this time, some of the vibration or shock transmitted to the motor shaft 42, the tub bracket 26 and the bearing housing 28 is buffered by the relaxation or contraction of the rear gasket 50, the remaining vibration or shock is the motor It is transmitted to the main damper 80 and the sub damper 90 through the shaft 42 and the main damper bracket and the sub damper bracket 62 to be attenuated.

In addition, the main damper 80 generates a damping force by relatively moving the piston 83 and the cylinder 82 in the vertical direction, the sub-damper 90 is the piston 83 and the cylinder 82 in the horizontal direction Relative movement to the damping force is generated against the horizontal component of the vibration or shock transmitted from the bearing housing 28.

On the other hand, reference numeral 72 is an elastic member, one end of the elastic member 72 is coupled to the upper end of the bearing housing 28, the other end of the top cover 13 that forms the upper surface of the cabinet 10 The rear side of the bearing housing 28 is embedded in the top cover 13 to be elastically supported by the top cover 13 to prevent the rear side of the drum 30 from being struck.

In the above embodiment, the tub is fixed to the cabinet, the door opening and closing the opening of the tub is provided on the front of the cabinet, the drum is supported by the main damper and sub-damper, but according to another embodiment of the present invention drum and tub An opening is formed in the upper outer circumferential surface, the door is formed on the upper side rather than the front of the cabinet, the drum is provided with a drum washer is supported by a damper for supporting the load and a damper for the tilting.

In the present embodiment, the same parts as the above-described embodiments in the description are given the same numbers for convenience of description, and detailed description thereof will be omitted.

7 to 9 are views showing another embodiment of the drum washing machine of the present invention.

Drum washing machine according to the present embodiment is a cabinet (100) forming an external shape, a tub 120 is installed directly coupled to the inside front of the cabinet 100, and is installed rotatably located in the tub 120 The drum 130, the motor 40 installed at the rear of the tub 20 to rotate the drum 130, and the shaft 42 of the motor 40 simultaneously with the rear surface of the tub 120. Interposed between the bearing housing 128 and the bearing housing 128 and the tub 120 to seal the inside of the tub 120 and transfer from the motor 40 to the tub 120. Shock absorbing means (50) for buffering the vibration or shock is made, and the suspension assembly 160 for damping the vibration or shock transmitted to the bearing housing 128 and the drum 130.

Here, a door assembly 132 is provided on the outer circumferential surface of the drum 130 for taking out and drawing the laundry. The door assembly 132 can be opened and closed in various forms such as a sliding type.

In addition, an opening 122 having a predetermined portion opened at a position corresponding to the door assembly 132 of the drum 130 on the upper outer circumferential surface of the tub 120 surrounding the outer circumference of the drum 130 is formed.

In addition, an opening (not shown) communicating with the opening 122 of the tub 120 is formed at an upper side of the cabinet 100, and an opening (not shown) at the upper side of the cabinet 100. ) And a door (not shown) capable of simultaneously opening and closing the opening 122 of the tub 120 is preferably provided.

When the drum 130 stops, the drum assembly 130 stops at a position where the door assembly 132 of the drum 130 and the opening 122 of the tub 120 communicate with each other. The laundry can be taken out and drawn into the inside, and the drum 130 can be easily viewed down, thereby increasing convenience.

In addition, the structure of the motor 40, the motor shaft 42, the buffer member 50 and the like can be configured in the same manner as in the above-described embodiment.

In addition, the suspension assembly 160 includes a damper bracket 162 coupled to the bearing housing 128 and a damping unit 170 coupled to the damper bracket 162 to support the bearing housing 128.

In the present embodiment, the damping unit 170 supports the weight of the drum 130 and attenuates the vertical vibration of the main damper 180, and attenuates the vertical vibration of the drum 130. ) May include a rear damper 182 to prevent inclination toward one side.

The damper bracket 162 may include a main damper bracket 164 coupled to the main damper 180, and a rear damper bracket 168 coupled to the rear damper 182.

The main damper bracket 164 coupled to the main damper 180 is each from the bearing housing 128 to the outer outer peripheral surface of the tub 120 to both sides of the bottom of the tub 120 along the radial direction of the tub 120. It is preferably extended to a predetermined length so as to be parallel to the base 16 of the cabinet 100 toward the front of the tub 120, the main damper 180 is preferably coupled to the extended end.

Here, the main damper 180 is preferably installed perpendicular to the base 16. The reason is that the main damper 180 supports the vertical load of the drum 130, the bearing housing 128, and the motor 40 and attenuates the vertical vibration.

That is, the main damper bracket 164 is provided with two toward the front of the tub 120 from both sides of the bearing housing 128, the main damper 180 is coupled to each main damper bracket 164, so the main damper 180 is also provided with two.

In addition, one end of the rear damper bracket 168 coupled to the rear damper 182 is fixed to the lower center portion of the bearing housing 128, and the other end thereof extends a predetermined length toward the base 16 of the cabinet 100. It is preferably formed to be. At the end, the rear damper 182 is vertically coupled.

7 is a cross-sectional view showing a cross section of the drum washing machine of the present embodiment, but for convenience of description, the main damper bracket 164 is shown as a side view rather than a cross-sectional view.

That is, the main damper 180 is provided at both sides of the drum 130, and the rear damper 182 is provided at the lower part of the rear side of the drum 130 to install the main damper 180 and the rear damper 182. Will form a triangle on the plane.

The rear damper 182 is a component for preventing the drum 130 from hitting to one side. As described above, the phenomenon in which the drum 130 is struck in one side is due to the center of gravity, and in general, since the driving unit such as the motor 40, which occupies a heavy portion of the drum 130, is biased behind, the drum 130 is empty. In the state, the center of gravity can only be in the rear side of the drum (130).

Therefore, while supporting the weight of the drum 130 as the main damper 180 and the rear damper 182 to prevent the drum 130 from sag.

Here, the function and configuration of the rear damper 182 may vary depending on the installation position of the main damper 180.

That is, if the installation position of the main damper 180 is made to maintain the horizontal when the drum 130 is empty, the drum 130 is inclined toward the front side when laundry and water are introduced into the drum 130. Then, since the rear side of the drum 130 rises relatively upward, as shown in FIG. 9, the rear damper 182 reciprocates within the cylinder 183 and the cylinder 183. Piston 185 and friction member 186 for damping vibration while moving, and a spring 184 supporting the piston 185 and having an elastic force when the piston 185 is pulled out of the cylinder 183, the drum It is preferable to configure so that the rear side of the elastically pulls upward. Of course, it is also possible to configure the rear damper as shown in Figure 5 so as to have an elastic force when the spring 85 is tensioned.

In addition, if the drum 130 is inclined to the rear side when the drum 130 is empty and the drum 130 is designed to be horizontal when laundry and water are introduced into the drum 130, the rear damper 182 may be removed. As shown in FIG. 5, a cylinder 82, a piston 83 for damping vibrations while reciprocating in the cylinder 82, and the piston 83 support the piston 83, and the piston 83 is a cylinder 82. It is preferable that the back side of the drum 130 is configured to elastically support the rear side of the drum 130 by being configured with a spring 85 having an elastic force when drawn into.

Here, the main damper so that the center of gravity acted by the drum 130, the motor 40, the bearing housing 128, and the like is in a triangle formed when the main damper 180 and the rear damper 182 are connected to each other. It is preferable to determine the installation position of the 180 and the rear damper 182.

In addition, the other end of the side coupled to the damper brackets 164 and 168 of the main damper 180 and the rear damper 182 may be directly coupled to the base 16 of the cabinet 100, but the deformation of the base 16. In order to prevent this, a base bracket 116 for strength reinforcement may be further provided between the base 16 and the dampers 180 and 182. Alternatively, similarly to the above-described embodiment, a forming for strengthening strength may be formed at a portion where the main damper 180 and the rear damper 182 of the base 16 are coupled. .

Here, as shown in FIG. 5 or FIG. 8, end portions coupled with the respective damper brackets 164 and 168 of the main damper 180 and the rear damper 182 are formed as hinge couplings 87. The end is preferably fixed by the rubber bushing 86.

On the other hand, the sub-damper (190a, 190b) is a component that damps the horizontal vibration of the drum (130). Horizontal vibration of the drum 130 is a front / rear vibration and left / right vibration, this horizontal vibration generally tends to occur when the drum 130 is in a transient vibration state.

In order to attenuate the horizontal vibration as described above, the sub-dampers 190a and 190b are preferably installed to attenuate forward / backward vibration or to attenuate left / right vibration.

In order for the sub damper 190a to attenuate forward and backward vibrations, the sub damper 190a may be installed to be inclined in the front and rear directions of the tub 120.

If the sub-damper 190b is installed to attenuate the left / right vibration, the sub-damper 190b may be installed to be inclined in the left / right direction of the tub 120.

Here, one end of the sub-damper 190a is hinged to one side of the main damper bracket 164, the other end is preferably hinged to the base 16. Alternatively, a separate sub damper bracket 166 may be provided at the main damper bracket 164 to couple the sub damper 190b to the sub damper bracket 166. In this case, one end of the sub damper 190b is preferably hinged to the sub damper bracket 166 and the other end is hinged to the base 16.

Of course, the sub-dampers 190a and 190b may alternatively be installed to attenuate the vibration of any one of the front / rear direction or the left / right vibration, and two of them may be forward / backward and left / right directions. Each may be installed to attenuate vibration.

In addition, the sub dampers 190a and 190b are preferably formed in the same manner as the sub damper 90 of the above-described embodiment.

Therefore, according to the drum washing machine of the present embodiment, since the tub 120 is directly fixed to the cabinet 100 and does not flow, the diameter of the tub 120 can be increased larger, thereby increasing the volume of the drum 130. You can zoom in. In addition, since the rotating drum 130 is supported only on one side, the volume inside the drum 130 is further enlarged and the number of parts is smaller than that of the drum 130 supported at both ends, thereby improving productivity.

In addition, since the drum 130 is supported by three points as the main damper 180 and the rear damper 182, the center of gravity of the drum 130 changes due to the inflow of laundry and washing water into the drum 130, and the drum 130 is inclined to one side. Can be prevented.

In addition, the sub-damper (190a, 190b) for damping the vibration of the front / rear and left / right direction can be effectively suppressed in the horizontal vibration of the drum (130).

Another embodiment of the drum washing machine of the present invention described above is provided with a door for loading and taking out the laundry is provided on the upper outer surface of the drum and tub, the tub is fixed to the cabinet and the drum and the motor are supported by the damper and damper bracket three points Alternatively, the drum may be configured such that the drum and the motor are supported by the damper three points as described above, even in the drum washing machine in which the door is provided at the front of the cabinet.

Hereinafter, another embodiment of the drum washing machine of the present invention will be described.

In the following description, a part different from the above-described embodiments will be described, and the same parts as the above-described embodiments will be omitted for convenience of description.

10 is a view showing another embodiment of the present invention.

Drum washing machine according to another embodiment of the present invention, the tub 200, the tub 220 is fixedly coupled to the inside of the front of the cabinet 200, the drum rotatably installed in the tub 220 230, a door 212 installed at the front of the cabinet 200 to open and close the openings of the cabinet 200 and the tub 220, a drive unit 40 driving the drum 230, and the drive unit. It consists of a bearing housing 228 rotatably supporting the shaft 42 and a suspension assembly 260 supporting the bearing housing 228.

It is coupled to the drive shaft 42 of the drive unit 40, such as a motor that applies a rotational force to the rear side of the drum 230, the bearing housing 228 supports the drive shaft 42. In addition, the suspension assembly 260 supports the bearing housing 228. Therefore, the bearing housing 228 supports the driving unit 40, the bearing housing 228, and the drum 230.

In addition, the suspension assembly 260 includes a damper bracket 262 and a damping unit 270 coupled to the damper bracket 262 to support the bearing housing 228.

In addition, the damping unit 270 supports the load of the drum 230, two main dampers 280 to attenuate the vertical vibration of the drum 230, and the vertical direction of the drum 230 It may include a rear damper 282 to damp the vibration and to prevent the drum 230 from tilting to one side.

Here, the structure and function of the damper bracket 262, the main damper 280 and the rear damper 282 is the same as the embodiment in which the above-described main damper 180 and the rear damper 182 is applied, a detailed description thereof will be omitted. Shall be.

Therefore, according to the drum washing machine of the present invention, since the tub is fixed directly to the cabinet and does not flow, it is possible to enlarge the diameter of the tub and thus to enlarge the volume of the drum.

In addition, since only one side of the rotating drum is supported, the internal volume of the drum is further enlarged, and the number of parts is reduced by that, and thus the productivity may be improved.

In addition, since the damper is supported by three points as the main damper and the rear damper or elastic member, the center of gravity is changed due to the inflow of laundry and wash water into the drum, thereby preventing the drum from tilting to one side.

In addition, it is provided with a sub-damper for damping the vibration of the front / rear and left / right direction, it is possible to effectively suppress the horizontal vibration of the drum.

As described above, according to the drum washing machine of the present invention has the following effects.

First, because the tub is fixed directly to the cabinet does not flow, it is possible to enlarge the diameter of the tub larger, and thus to enlarge the volume of the drum.

Secondly, the rotating drum is not supported at both ends but is supported only at the rear side, thereby reducing the installation space of parts, thereby increasing the internal volume of the drum and reducing the number of parts, thereby improving productivity.

Third, since the damper is supported by three points as the main damper and the rear damper, the center of gravity is changed due to the inflow of the laundry and the wash water in the drum, thereby preventing the drum from tilting to one side.

Fourth, since a sub damper for damping the vibration of the front / rear and left / right direction can be effectively suppressed the horizontal vibration of the drum.

Claims (22)

A cabinet forming a main body appearance; A tub fixed to the cabinet; A drum rotatably provided in the tub; A driving unit generating a driving force for rotating the drum and coupled to a rotation shaft on one side of the drum; A bearing housing supporting a rotation shaft of the drive unit; And a suspension assembly provided below the bearing housing to support the load of the drum and to damp vibration of the drum. The method of claim 1, The suspension assembly, At least one damper bracket provided on a lower side of the bearing housing; And at least one damper, the damper being coupled to the damper bracket to support the bearing housing. The method of claim 2, And a base bracket provided between the damper and the bottom of the cabinet to reinforce the rigidity of the bottom of the cabinet supporting the damper. The method according to any one of claims 2 to 3, The damping unit supports at least one load of the drum and at least one main damper for damping the vertical vibration of the drum; And a sub-damper for damping the horizontal vibration of the drum. The method of claim 4, wherein The damper bracket coupled to the main damper is bent toward the front of the tub from the lower both side portions of the bearing housing, the drum washing machine, characterized in that one end of the main damper is coupled to the end. The method of claim 4, wherein The damper bracket is coupled to the sub-damper is bent toward the front of the tub from the lower central portion of the bearing housing is formed to extend a predetermined length, drum washing machine, characterized in that one end of the sub-damper is coupled to the end. The method of claim 4, wherein The sub-damper damps the front / rear vibration of the drum and is inclined toward the front side of the drum to support the drum inclined to the front side. The method of claim 4, wherein One end coupled to the damper bracket of the main damper and the rear damper is made of a hinge coupling, the other end is fixed by a rubber bushing. The method of claim 4, wherein The sub-damper is a drum washing machine, characterized in that both ends are fixed by hinged. The method of claim 4, wherein The attenuation unit, One end is coupled to the upper end of the bearing housing, the other end is coupled to the inside of the upper surface of the cabinet drum washing machine characterized in that it further comprises a spring to elastically suspend the bearing housing on the upper surface of the cabinet. The method according to any one of claims 2 to 3, The damping unit supports at least one load of the drum and at least one main damper for damping the vertical vibration of the drum; And a rear damper: damping the vertical vibration of the drum and preventing the drum from tilting to one side. The method of claim 11, The installation position of each of the main damper and the rear damper is a drum washing machine, characterized in that forming a triangle in the plane. The method of claim 11, The rear damper is a drum washing machine, characterized in that to prevent the drum from tilting forward. The method of claim 11, The rear damper is a drum washing machine, characterized in that to prevent the drum from tilting to the rear side. The method of claim 11, And a sub damper for damping the horizontal vibration of the drum. The method of claim 15, The sub-damper is a drum washing machine, characterized in that for damping the front and rear vibration of the drum. The method of claim 15, The sub-damper is a drum washing machine, characterized in that for damping the lateral vibration of the drum. The method of claim 11, The damper bracket coupled to the main damper extends from the bearing housing to the outer side of the outer circumferential surface on both sides of the bottom of the tub along the radial direction of the tub, and is bent toward the front of the tub to extend a predetermined length, and at the extended end thereof. Drum washing machine, characterized in that one end of the main damper is coupled. The method of claim 11, The damper bracket coupled to the rear damper extends vertically downward from the bearing housing, and one end of the rear damper is coupled to an end thereof. The method of claim 11, The main damper, cylinder; A piston for damping vibrations while reciprocating in the cylinder; And a spring for supporting the piston, the spring having an elastic force when the piston is drawn into the cylinder. The method of claim 11, The rear damper, cylinder; A piston for damping vibrations while reciprocating in the cylinder; And a spring which supports the piston and has a spring force when the piston is drawn out into the cylinder. The method of claim 11, One end coupled to the damper bracket of the main damper and the rear damper is made of a hinge coupling, the other end is fixed by a rubber bushing.

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