KR20120102298A - Laundry machine - Google Patents

Abstract

PURPOSE: A laundry machine is provided to guide washing water, which is leaked to the external circumference of a base, to a water leakage sump by a guide route. CONSTITUTION: A tub(120) is fixed to a cabinet. A drum(130) can rotates in a tub. A rotation axis is connected to the drum. A bearing housing(140) supports the rotation axis. The suspension unit includes a suspension bracket, a first damper, and a second damper. The suspension bracket is extended toward the drum. The first damper supports the suspension bracket. The second damper supports the bearing housing.

Description

Washing Machine {Laundry Machine}

The present invention relates to a laundry machine, and more particularly, to a laundry machine to improve the structure of the laundry machine to increase the washing capacity.

In general, the washing machine is a product that removes various contaminants attached to clothes and bedding by using the emulsification of the detergent and friction action of the water flow due to the rotation of the pulsator or drum and impact on the laundry. Recently appeared automatic washing machine automatically proceeds a series of steps leading to a washing course, rinsing course, dehydration course, etc. without the user's operation in the middle.

Recently, the demand for a drum-type washing machine, which can reduce the overall height as compared to the pulsator washing machine that rotates with the washing tank standing, and hardly causes the laundry to be twisted and wrinkles on the laundry, is increasing. Is in.

Briefly describing the structure of the drum-type laundry machine as described above, the main body cabinet forming the outer shape, the tub which is located inside the main cabinet and supported by the damper and the spring, the wash water is stored, and the inner side of the tub The drum is largely divided into a cylindrical drum into which laundry can be put, and the drum receives a driving force by a driving motor for washing laundry put into the drum.

The drum type laundry machine having the structure described above inevitably causes vibration due to the rotational force of the drum and the eccentricity of the laundry when the drum is rotated to wash and dehydrate the laundry put into the drum. The vibration generated is transmitted to the outside through the tub and the cabinet.

Accordingly, in order to prevent the vibration transmitted from the drum to the tub to the cabinet, a spring and a damper are essentially provided between the tub and the cabinet to cushion and mitigate the vibration of the tub.

On the other hand, in the case of the drum-type laundry machine as described above is not installed separately, but installed in the existing installation environment (for example, sink environment or built-in environment). Therefore, in the case of drum-type washing machine should be limited to fit the installation environment in which the size is installed.

As described above, in the drum type washing machine, the internal structure is limited by the spring and the damper structure for reducing vibration between the tub and the cabinet, and the washing machine itself is limited due to the limited installation environment of the washing machine. Changing the size is limited.

On the other hand, in recent years, many researches and developments are being made on increasing the washing capacity of the washing apparatus in order to increase the washing amount and the user's convenience. However, in the structure of the conventional drum type washing machine due to the above-described limitations, there are many difficulties in increasing the size of the tub in order to increase the washing capacity.

As described above, in order to increase the washing capacity, development of washing apparatuses having various structures is emerging.

The present invention is to solve the problems as described above, and relates to a laundry machine to increase the capacity of the tub while maintaining the external size applied to the conventional drum-type laundry machine.

Washing apparatus according to an embodiment of the present invention for achieving the above object is a cabinet, a tub fixed to the cabinet, a drum rotatably provided on the tub, a rotating shaft connected to the drum, and the rotating shaft A bearing housing rotatably supporting a suspension unit, and a suspension unit buffering the bearing housing, wherein the suspension unit includes a suspension bracket extending from the bearing housing to the front side of the drum, and a first damper supporting the suspension bracket. And a second damper positioned below the bearing housing and supporting the bearing housing inclined with respect to the vertical load of the bearing housing.

The first damper preferably includes a spring damper for supporting the suspension bracket in a vertical direction, and a damper for supporting the suspension bracket in an inclined manner.

The tub is tilted and supported so that the front is upward, and the second damper is inclined at an inclination corresponding to the tilt direction of the tub.

In addition, the laundry machine according to another embodiment of the present invention for achieving the above object is a cabinet including a rear panel, a tub fixed to the cabinet, a drum rotatably provided on the tub, and the drum A connected rotation shaft, a bearing housing for rotatably supporting the rotation shaft, and a suspension unit configured to buffer and support the bearing housing, wherein the bearing housing protrudes from an upper portion of the bearing housing to fasten a transit bolt passing through the rear panel. It is preferable to further provide a transit bolt fastening portion.

The transit bolt fastening part is formed in an upper protrusion extending radially from the bearing housing, a rear protrusion extending from the upper protrusion to the rear of the bearing housing, and formed in the rear protrusion and eccentric with respect to the center of the bearing housing. It is preferable that the eccentric fastening portion to which the transit bolt is fastened is formed.

The tub has an opening formed at the rear, a tub back wall positioned at the opening, and a rear gasket for maintaining airtightness between the opening and the tub back wall, and the transit bolt fastening part is formed inside the outer circumferential surface of the tub back wall. It is preferable to be.

The tub has an opening formed at the rear, a tub back wall positioned at the opening, and a rear gasket for maintaining airtightness between the opening and the tub back wall, and the transit bolt fastening portion is formed outside the outer circumferential surface of the tub back wall. It is preferable to be.

It is preferable to further include a rear gasket for sealing the rear portion of the tub to prevent leakage from the tub to the drive motor, and to allow the drive motor to move relative to the tub.

It is preferable to include a drive motor which is fastened to the bearing housing, directly connected to the rotary shaft to rotate the rotary shaft.

It further comprises a suspension unit for supporting the drum, the tub is preferably supported rigidly than the drum is supported by the suspension unit.

According to the washing machine according to the present invention, there is an effect of increasing the capacity of the tub while maintaining the external size applied to the conventional drum type washing machine.

1 is an exploded perspective view showing a washing apparatus according to the present invention.
2 is a cross-sectional view showing a washing apparatus according to the present invention.
3 is a rear perspective view of the tub of the laundry machine according to the present invention.
Figure 4 is a perspective view showing a suspension of the washing apparatus according to the present invention.
Figure 5 is a side view showing a coupling state of the tub and suspension of the laundry machine according to the invention.
Figure 6 is a perspective view showing in detail the base of the washing apparatus according to the present invention.
Figure 7 is a side view showing the installation state of the suspension unit of the washing machine according to the present invention.
8 is a cross-sectional view showing the transit bolt coupling of the washing machine according to an embodiment of the present invention.
9 is a cross-sectional view showing a transit bolt coupling of the laundry machine according to another embodiment of the present invention.

Hereinafter, a washing machine according to an embodiment of the present invention will be described in detail. In describing the present invention, the names of the elements defined are defined in consideration of functions in the present invention. Therefore, it should not be understood as a meaning limiting the technical components of the present invention. In addition, each name defined in each component may be referred to as other names in the art.

First, with reference to the accompanying drawings will be described in detail a washing apparatus according to an embodiment of the present invention.

1 is an exploded perspective view showing a washing apparatus according to the present invention, Figure 2 is a cross-sectional view showing a washing apparatus according to the present invention.

As shown in FIG. 1 and FIG. 2, the washing apparatus 100 according to the present invention includes a cabinet 110 having an external appearance as shown, a tub 120 fixedly installed inside the cabinet 110, and A drum 130 positioned inside the tub 120 and rotatably installed, a rotating shaft 135 connected to the drum 130 through the rear of the tub 120, and a bearing housing for supporting the rotating shaft 135 ( 140, the drive motor 141 provided in the bearing housing 140 to transmit the rotational force to the rotating shaft 135, and coupled to the bearing housing 140 to support the structures connected to the bearing housing 140, and at the same time vibrating and And / or a suspension unit 150 that cushions shocks.

The cabinet 110 includes a base 110a on which each component is supported and seated, and a front panel 111 formed with an opening 112 for loading laundry. The cabinet 110 further includes a left panel 114 and a right panel 115. And a rear panel 116 and a top panel 117. Here, a door 113 for closing the opening 112 is provided in the opening 112 of the front panel 111.

The tub 120 includes a front tub 121 constituting the front part and a rear tub 122 constituting the rear part. The front tub 121 and the rear tub 122 are assembled by a combination of screws and the like, and form a space in which the drum 130 is accommodated (see FIG. 3).

Here, the front tub 121 is in contact with the door 113 to the front side is formed with an opening 123 is opened so that laundry can be put. The inlet 123 has a front gasket 124 for maintaining airtightness with the opening 112 formed in the front panel 111. The front gasket 124 further performs a function for preventing foreign matter from flowing between the tub 120 and the drum 130.

And, the rear tub 122 is formed so that the rear surface. The rear tub 122 has a tubback wall 125 and a rear gasket 126 for closing the rear surface. On the other hand, the inner circumferential surface of the rear opening of the rear tub 122 is formed to protrude a ring-shaped inner circumferential partition (not shown) for coupling the rear gasket 126.

In addition, the tub back wall 125 is vibrated together with the drum 130 when the drum 130 rotates. At this time, the rear tub 122 is spaced apart from the rear tub 122 at a sufficient interval so as not to interfere with the rear tub 122. The tub back wall 125 has a central portion formed in a disc shape, and the outer circumferential surface is formed with an outer circumferential partition 125a protruding to the outside of the tub 120 for coupling with the rear gasket 126. The outer circumferential partition 125a protrudes in a ring shape, and the rear gasket 126 is fastened by a separate snap ring (not shown).

Here, the rear gasket 126 is connected to each of the tub back wall 125 and the rear tub 122 so as to prevent the wash water from leaking in the tub 120.

On the other hand, since the rear gasket 126 is made of a flexible material positioned between the tub back wall 125 and the rear tub 122, the tub back wall 125 allows relative movement without interfering with the rear tub 122. . The back gasket 126 may have a pleat that may extend to a sufficient length to allow such relative movement of the tubback wall 125.

In addition, the tub 120 is vertically supported by the supporters 219a and 219b provided in the base 110a of the cabinet 110 and is fixed by a separate combination (for example, screw screw or bolt). The tub 120 is tilted at an incline of about 2 to 7 degrees so that the front is positioned higher than the rear in order to prevent the convenience of the user and the laundry from moving forward.

In addition, the tub 120 may be fixed by an assembly not shown in the front panel 111 and the rear panel 116 or the left panel 114, the right panel 115 of the cabinet 110.

The drum 130 is composed of a front drum 131, a center drum 137, a rear drum 132, and the like. The front and rear parts of the front drum 131 and the rear drum 132 are provided with a weight balancer 134 having a balancing function to suppress vibration of the drum 130 when the drum rotates. In addition, the inner surface of the center drum 137 is provided with a lift 133 for moving the laundry.

On the other hand, the rear drum 132 is connected to the spider 136, the spider 136 is connected to the rotating shaft 135. The drum 130 is rotated in the tub 120 by the rotational force transmitted through the rotating shaft 135.

Here, the rotating shaft 135 is directly connected to the drive motor 141 through the tub back wall 125. Specifically, the rotor of the drive motor 141 and the rotation shaft 135 are directly connected. The rear of the tub back wall 125 is coupled to the bearing housing 140 to be described later.

The bearing housing 140 rotatably supports the rotating shaft 135 between the drive motor 141 and the tub back wall 125. In addition, the bearing housing 140 is elastically supported from the base 110a through the suspension unit 150.

On the other hand, one surface of the bearing housing 140 is coupled to the tub back wall 125 located on the rear of the tub 120. The rotating shaft 135 coupled to the drum 130 penetrates into the bearing housing 140. The bearing housing 140 is provided with a bearing (not shown) so that the rotating shaft 135 rotates smoothly, and the rotating shaft 135 is supported by a bearing (not shown). Then, the other side of the bearing housing 140 is fastened to the drive motor 141 for rotating the rotating shaft.

In addition, the first extension part 142 and the second extension part 144 are formed in a symmetrical shape in both the left and right radial directions of the bearing housing 140. The suspension unit 150 is fastened to the first extension part 142 and the second extension part 144, respectively, and the bearing housing 140 is elastically supported through the suspension unit 150.

And, the upper portion of the bearing housing 140 is formed with a transit bolt fastening portion 146 for preventing the flow of the bearing housing 140 when the washing apparatus 100 moves. Here, the transit bolt fastening part 146 is fastened by the transit bolt 149 penetrating the rear panel 116 of the cabinet 110.

Here, the transit bolt fastening part 146 is formed with an upper protrusion 147 extending from the upper portion of the bearing housing 140 to the upper portion of the bearing housing 140, the bearing housing 140 at the end of the upper protrusion 147. The rear protrusion 148 is formed to extend to the rear of the. The rear protrusion 148 is provided with an eccentric fastening portion 148a through which the transit bolt 149 inserted through the rear panel 116 is inserted. Here, the eccentric fastening portion 148a is formed in the transit bolt fastening portion 146 formed in the upper center of the bearing housing 140, but is formed to be eccentric (t) at the center of the bearing housing 140. The eccentric fastening portion 148a fixes the flow of the bearing housing 140 when the washing apparatus 100 moves.

On the other hand, the transit bolt fastening portion 146 is formed lower than the height of the outer circumferential partition (125a) of the tubback wall 125 described above, may be located outside the outer circumferential partition (125a). In this case, a portion having a predetermined width may be formed in a portion of the outer circumferential partition 125a such that an end portion of the transit bolt fastening part 146 may be located outside the outer circumferential partition 125a of the tub back wall 125. In addition, a high information tool 149a may be further provided to maintain a distance between the transit bolt fastening part 146 and the rear panel 116 together with the transit bolt 149. The high information tool 149a is detachably inserted into the through hole 116a formed in the rear panel 116 and penetrates the high information tool 149a to the transit bolt fastening portion 146 by the transit bolt 149. (See FIG. 7).

The transit bolt fastening part 146 is formed lower than the height of the outer circumferential partition 125a of the tubback wall 125 described above, and may be located inside the outer circumferential partition 125a. In this case, in addition to the transit bolt 149, a high information tool 149a may be further provided to maintain a gap between the transit bolt fastening part 146 and the rear panel 116. The high information tool 149a is detachably inserted into the through hole 116a formed in the rear panel 116 and penetrates the high information tool 149a to the transit bolt fastening portion 146 by the transit bolt 149. (See FIG. 8).

Hereinafter, with reference to the accompanying drawings, the coupling state of the suspension unit according to the present invention will be described in detail.

Figure 4 is a perspective view showing a suspension of the washing apparatus according to the present invention, Figure 5 is a side view showing a coupling state of the tub and suspension of the washing apparatus according to the present invention.

The suspension unit 150 includes first and second weights 143 and 145 connected to the first and second extension parts 142 and 144 of the bearing housing, and first and second weights 143 and 145 respectively. First, second and third spring dampers connected to the first and second suspension brackets 151 and 154 and the first and second suspension brackets 151 and 154 and the bearing housing 140 to elastically support the bearing housing 140. 152, 155, and 157 and first and second dampers 153 and 156 are provided.

The first and second weights 143 and 145 serve to grasp the center of gravity when laundry is accommodated in the drum 130, and also serves as a mass in the vibration system in which the drum 130 vibrates.

The first spring damper 152 is connected between the first suspension bracket 151 and the base 110a. The second spring damper 155 is connected between the second suspension bracket 154 and the base 110a. The third spring damper 157 is directly connected between the bearing housing 140 and the base 110a. Each spring damper (152, 155, 157) is in the form of being buffered at one location in the rear, and two places in the front left and right.

The first damper 153 is installed to be inclined between the first suspension bracket 151 and the base 110a, and the second damper 156 is installed to be inclined between the second suspension bracket 154 and the base rear portion. .

Preferably, the first and second weights 143 and 145, the first and second suspension brackets 151 and 154, the first and second spring dampers 152 and 155 and the first and second dampers 153 and 156 are drums. Is formed symmetrically around the axis of rotation of 130, each damper is connected to the base (110a) via a separate rubber bushing is coupled to be able to tilt at a predetermined angle. The drum 130 and the bearing housing 140 are supported in the tub 120 by the first and second suspension brackets 151 and 154 and the first, second and third spring dampers 152, 155 and 157. do.

In the case of the third spring damper 157 described above, the third spring damper 157 is provided at the rear of the bearing housing 140 to fully support the bearing housing 140. In this case, the third spring damper 157 is generally provided to support the bearing housing 140 in a vertical state.

Meanwhile, in the case of the third spring damper 157 positioned below the bearing housing 140, the third spring damper 157 is installed adjacent to the tub back wall 125 and the rear gasket 126 forming the rear surface of the tub 120. Here, looking at the installation state of the tub 120, the front of the tub 120 is supported in a tilted state to rise upward with respect to the rear of the tub 120.

That is, the tub 120 is supported in a tilted state, and the third spring damper 157 supporting the lower portion of the bearing housing 140 is installed in the vertical direction. Accordingly, the rear surface of the tub 120 and the third spring damper 157 have a predetermined angle.

Therefore, in order to accomplish the object of the present invention, the volume of the tub 120 is extended to the third spring damper 157 by greatly reducing the gap between the rear surface of the tub 120 and the third spring damper 157 as much as possible. You can. To this end, in the case of the third spring damper 157, the third spring damper 157 may be installed to be inclined in parallel with the rear surface of the tub 120. In this case, the inclination of the third spring damper 157 that is inclined may have an inclination α of 2 to 7 degrees similar to the tilt inclination of the tub 120.

The drive motor 141 is fastened to the rear of the bearing housing 140 and directly connected to the rotating shaft. The drive motor 141 is provided to control the speed by a controller (not shown). The structure and type of the driving motor 141 are well known to those skilled in the art, and various embodiments are possible, so detailed description thereof will be omitted.

According to the washing machine of the present embodiment, since the tub 120 is fixed to the cabinet 110 and does not flow directly, the diameter of the tub 120 may be enlarged to a greater extent, and thus the volume of the tub 120 and the drum 130 may be increased. Can be greatly enlarged.

In addition, since the tub 120 is fixed to the cabinet 110, when vibration or shock is transmitted to the tub 120 integrally assembled with the cabinet 110, the tub 120 itself is not shaken by vibration or shock, but the cabinet 120 itself. Since the weight of the 110 is added, the rigidity of the tub 120 is increased and the overall vibration characteristics of the drum washing machine may be improved.

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.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, The present invention may be modified in various ways. Therefore, modifications of the embodiments of the present invention will not depart from the scope of the present invention.

110: cabinet 120: tub
130: drum 140: bearing housing
146: transit bolt fastening portion 150: suspension unit
157: third spring damper

Claims (10)

Cabinets,
A tub fixed to the cabinet,
A drum rotatably provided in the tub,
A rotating shaft connected to the drum,
A bearing housing for rotatably supporting the rotating shaft;
A suspension unit for buffering and supporting the bearing housing,
The suspension unit includes a suspension bracket extending from the bearing housing to the front side of the drum;
A first damper supporting the suspension bracket,
And a second damper positioned below the bearing housing and supporting the bearing housing inclined with respect to the vertical load of the bearing housing. The method of claim 1, wherein the first damper
A spring damper for supporting the suspension bracket in a vertical direction;
Washing apparatus characterized in that it comprises a damper for supporting the suspension bracket inclined. The washing apparatus according to claim 1, wherein the tub is supported by being tilted so that the front is upward, and the second damper is inclined at an inclination corresponding to the tilt direction of the tub. A cabinet including a rear panel,
A tub fixed to the cabinet,
A drum rotatably provided in the tub,
A rotating shaft connected to the drum,
A bearing housing for rotatably supporting the rotating shaft;
A suspension unit for buffering and supporting the bearing housing,
The bearing housing further comprises a transit bolt fastening portion protruding from the bearing housing and fastening the transit bolt passing through the rear panel. According to claim 4, The transit bolt fastening portion
An upper protrusion extending radially from the bearing housing;
A rear protrusion extending from the upper protrusion to the rear of the bearing housing;
Is formed in the rear projection, washing machine characterized in that the eccentric fastening portion is formed to be eccentric with respect to the center of the bearing housing is fastened to the transit bolt. According to claim 4, The tub has an opening formed in the rear,
Tub back wall located in the opening,
A rear gasket is provided between the opening and the tub back wall to maintain airtightness.
The transit bolt fastening unit is characterized in that the washing apparatus is formed on the inner circumferential surface of the tub back wall. According to claim 4, The tub has an opening formed in the rear,
Tub back wall located in the opening,
A rear gasket is provided between the opening and the tub back wall to maintain airtightness.
The transit bolt fastening portion is laundry machine, characterized in that formed on the outer peripheral surface of the tub back. The method according to any one of claims 1 to 4,
And a rear gasket for sealing a rear portion of the tub to prevent leakage from the tub to the driving motor and allowing the driving motor to move relative to the tub. The method according to any one of claims 1 to 4,
And a drive motor fastened to the bearing housing and directly connected to the rotating shaft to rotate the rotating shaft. The method according to any one of claims 1 to 4,
And a suspension unit for supporting the drum, wherein the tub is rigidly supported than the drum is supported by the suspension unit.

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