KR20090119535A - Cloth treating apparutus - Google Patents

Abstract

PURPOSE: A laundry treating device is provided to couple a weight balance adamantly although vibration is generated during the rotation of a drum and correct the eccentric rotation of the drum effectually. CONSTITUTION: A laundry treating device comprises a main body, a drum, a weight balance(80), and a fixing member. The drum is installed inside the main body to be rotated. The weight balance corrects the eccentric rotation of the drum. The fixing member is vertically coupled on the rotary shaft, in which the drum is rotated, and fixes the weight balance to rotate with the drum.

Description

Clothes Treating Apparatus {Cloth Treating Apparutus}

The present invention relates to a laundry treatment apparatus, and more particularly, to a laundry treatment apparatus including a weight balance for correcting the eccentric rotation of the drum.

In general, the clothes treating apparatus means an apparatus for washing or drying clothes. Such a clothes processing apparatus forms a space for accommodating clothes therein and injects clothes, and then performs an operation for washing or drying clothes using various components mounted therein.

Here, the clothes treating apparatus includes a drum for accommodating clothes accommodated therein, and the drum rotates by a driving unit while driving the clothes while raising and falling the clothes stored therein.

At this time, when the clothing is biased at a predetermined position inside the drum, the drum may be transferred in an eccentric state. Thus, in order to compensate for the eccentric rotation of the drum, products having a weight balance in front of the drum have been provided. At this time, in fastening the weight balance to the drum, it was common to install the fastening member in the direction of the rotation axis from the outside of the drum after engaging the side of the drum in front of the drum.

However, a vibration occurs in the drum and the weight balance due to the rotation of the drum, causing a problem that the fastening state of the weight balance is loosened. This is because centrifugal force is generated in the circumferential outward direction by the rotation of the drum, and the weight balance impinges on the outward direction by the centrifugal force during vibration, thereby gradually loosening the engagement state of the fastening member.

In particular, as the fastening state of the weight balance becomes loose, it causes a problem of further increasing the amount of eccentricity during drum rotation.

The present invention has been made to solve the problems of the prior art, to provide a clothes treatment apparatus that can be firmly coupled to the weight balance even if vibration occurs during the rotation of the drum.

The object of the present invention as described above, the main body; A drum rotatably installed in the main body; A weight balance for correcting the eccentric rotation of the drum; And a fixing member which is coupled in a horizontal direction with the rotating shaft to which the drum is rotated, thereby fixing the weight balance to rotate together with the drum.

Here, the drum has a flange extending forward along an outer circumferential surface, the front of the demer is provided with a groove in which the weight balance is seated along the circumferential direction, the weight balance can be seated inside the flange. .

At this time, the fixing member is preferably made of a plurality of screw members for fixing the weight balance to the drum.

In detail, the weight balance may include a boss for fastening the screw member to a surface adjacent to the drum, and the screw member may be fastened to the boss by penetrating the drum from the inside of the drum.

Here, the screw member comprises a body portion coupled to the boss portion and a head portion fixed to the inner wall of the drum, the inner wall of the drum is formed concave to prevent the head portion from protruding into the drum. A head seat portion may be formed.

On the other hand, the weight balance further includes a fastening rib extending in contact with the surface adjacent to the drum, the screw member may be fixed by a nut after passing through the drum and the fastening rib from the inside of the drum. Can be.

At this time, the screw member comprises a body portion which is coupled to the nut and a head portion fixed to the inner wall of the drum, the inner wall of the drum is formed concave to prevent the head portion from protruding into the drum. A head seat portion may be formed.

In addition, when tightening the screw using the nut, the head portion and the head portion mounting portion preferably has a polygonal shape in order to prevent the head portion of the screw from rotating.

The fixing member may further include a ring member installed between the fastening rib and the nut.

In this case, the head portion is preferably made of a curved shape or a resin coating treatment to prevent damage to the clothing due to friction.

On the other hand, the rear of the drum is further provided with a spider for transmitting a rotational force to the drum, the weight balance may be formed to be integrally fixed to the rear wall of the spider by the fixing member.

In this case, the drum is provided with a flange extending rearward along the outer circumferential surface, the weight balance may be seated while contacting the inner circumferential surface of the flange.

The fixing member may be formed of a screw member to penetrate the weight balance from the rear of the weight balance to be coupled to the rear wall of the spider.

According to the present invention, even when vibration is generated by the rotation of the drum while driving the clothes treating apparatus, the fastening state of the weight balance is maintained firmly and the eccentric rotation of the nut drum can be effectively corrected.

Hereinafter, with reference to the accompanying drawings will be described in detail a first preferred embodiment of the present invention. This embodiment describes as an example a laundry treatment apparatus for washing clothes accommodated for convenience. However, this is only an example, and the present invention is not limited thereto. Of course, the present invention may be applied to any clothes treating apparatus in which rotation is performed including a drum accommodating clothes.

1 is a cross-sectional view showing the appearance of a laundry treatment apparatus according to a preferred embodiment of the present invention.

The clothes treating apparatus shown in FIG. 1 may include a main body 10 and a drum 20 rotatably installed in the main body 10. Here, a plurality of dehydration holes 21 may be formed on the outer circumferential surface of the drum 20 to allow the wash water to enter and exit.

And, the rear side of the drum 20 is provided with a driving unit 40 for rotating the drum 20, the front of the drum 20, the door for storing and collecting the clothes into the drum 20 in the front 11 may be provided.

And the outside of the drum 20 may include a tub 30 for receiving the wash water, the outside of the tub 30 for fixing the tub 30 to the inside of the main body 10 60 and the damper 70 may be provided on the upper and lower sides of the tub 30, respectively.

In addition, a gasket 50 may be provided to maintain an airtight state between the tub 30 and the door 11, and a drain hole for draining the wash water may be provided below the tub 30. .

Therefore, when clothing is introduced into the drum 20 through the door 11, the drum may be driven while the drum is rotated by the driving unit 40. In this case, the washing water accommodated in the tub 30 may be shared using the dehydration hole 21 of the drum 20. In addition, when the drum 20 rotates, the garment may be washed using the property of repeating the rise and fall of the garment.

However, in this case, if the clothing is biased and distributed inside the drum 20, the drum 20 may perform an eccentric rotation during driving. As such, when the drum 20 is rotated eccentrically, not only noise increases and washing performance is lowered, but also the load on the driving unit 40 increases, which may be damaged.

Therefore, in this embodiment, it is preferable to include a weight balance 80 for correcting the eccentric rotation of the drum 20.

The weight balance 80 includes a material having a predetermined weight therein and is configured to include a path in which the material is movable along the circumferential direction. Therefore, when the load is biased on one side of the drum 20, the eccentric rotation of the drum 20 may be prevented while the inner material is biased and distributed to the opposite side of the place where the load is biased.

Here, the weight balance 80 may be formed of a liquid balancer including a liquid having a predetermined weight therein, or may be formed of a ball balancer including a ball having a predetermined weight.

Hereinafter, a structure in which the weight balance 80 is fastened will be described in detail with reference to FIG. 2.

2 is a cross-sectional view showing a cut surface of the front surface of the drum.

Here, the weight balance 80 may be fixed to be rotated together with the drum 20 to correct the eccentricity of the drum 20.

As shown in FIG. 2, the weight balance 80 of the present embodiment may be installed to be fixed along the outer circumferential surface of the drum 20 in front of the drum 20.

The drum 20 is rotated in a state fixed to the driving unit 40 on the rear side, and as the weight balance 80 is installed away from the driving unit 40, a large moment is imparted even with a small weight of the weight balance 80. can do. Therefore, in this embodiment, the weight balance 80 is installed on the front of the drum 20 to increase efficiency, but the present invention is not limited thereto.

On the other hand, in the present embodiment may include a separate fixing member for fixing the weight balance 80 to the drum 20. And, it is preferable that the fixing member is made to be coupled in a horizontal direction with the rotating shaft of the drum 20 is rotated.

In the related art, as described above, a fixing member fastened in the rotational axis direction from the outside of the drum 20 was used. That is, the fastening member is fastened in the direction in which the centrifugal force acts upon rotation, and the weight balance vibrates in the centrifugal force direction during rotation, which may cause the fastening state of the fastening member to loosen.

In contrast, in the present embodiment, the fixing member is fastened in a direction parallel to the rotating shaft, and the vibration generated in the weight balance 80 during rotation does not significantly affect the fastening state of the fixing member. Therefore, according to this embodiment, even if used for a long time has the effect of maintaining a firm fastening state of the weight balance (80).

Meanwhile, in the present embodiment, the front of the drum 20 may be formed with a flange 23 extending forward along the outer circumferential surface, and the seating groove 23 may be formed along the circumferential direction on the front of the drum 20. . Therefore, the weight balance 80 may be fixed to the drum 20 while the fixing member is fastened after being seated in the seating groove 23 formed inwardly of the flange 23.

Here, the fixing member may be composed of a plurality of screw members 100 for fixing the weight balance 80 to the drum 20. That is, the plurality of screw members 100 are fastened to simultaneously fix the weight balance 80 and the drum 20 at predetermined positions along the circumferential direction of the weight balance fixing member.

In this embodiment, as shown, the screw member 100 is configured to penetrate the drum 20 from the inside of the drum 20 to be coupled to the weight balance 80.

If the screw member 100 is fastened inward from the outside of the drum 20, the end of the screw member 100 extends into the drum 20, which may cause damage to clothes, thereby causing the drum to be damaged. 20 may not sufficiently secure the length extending inward. Therefore, the screw coupling is a weight balance having a predetermined thickness through the drum 20 from the inside of the drum 20, considering that the fastening strength depends on the length of the screw member 100 penetrating the other member ( 80).

In the present embodiment, the mounting groove 23 is formed with a through hole 24 through which the screw member 100 passes, and the weight balance 80 has the through hole in a surface adjacent to the mounting groove 23. It is possible that the boss portion 81 is formed so as to correspond to the position of 24. Here, the boss portion 81 is formed to extend a predetermined length from the surface adjacent to the drum 20 in parallel with the rotation axis.

Meanwhile, the screw member 100 may include a body portion 102 coupled to the boss portion 81 and a head portion 101 fixed to an inner wall of the drum 20. Therefore, the screw member 100 passes through the through hole of the drum 20 from the inside of the drum 20, and then the body portion 102 is fastened to the boss portion 81 of the weight balance 80, The head portion 101 is supported on the inner wall of the drum 20 to fix the weight balance 80.

3 is a cutaway perspective view of the fastened portion of FIG. 2.

Here, it is preferable that the inner wall of the drum 20 in which the through hole 24 is formed further includes a head portion seating portion 25 formed concave. This is because when the head portion 101 protrudes from the inner wall of the drum 20, the clothing accommodated in the drum 20 may be damaged while rotating along the drum 20 when driven.

Therefore, in the present embodiment, as shown, the head portion seating portion 25 is formed in the inner wall of the drum 20 in which the head portion 101 is formed to be concave to a predetermined depth in front of the drum 20 Thus, the head portion 101 can be prevented from protruding.

Further, the head portion 101 is preferably the surface treatment is exposed to the inside of the drum. Here, the surface treatment refers to the head portion 101 to minimize the frictional force with the garment when the head portion 101 is in contact with the clothing contained in the drum 20 to prevent damage to the garment. It means processing separately.

As an example, the head portion 101 may be processed into a curved shape. As shown in FIG. 2, when the head portion 101 has a curved shape that becomes thinner and thinner to the portion adjacent to the inner wall of the drum 20, clothes are rotated when the drum 20 is rotated. It is possible to prevent the clothing from being damaged while being caught by the portion 101.

As another example, a coating treatment may be performed using a synthetic resin on a portion of the head portion 101 exposed to the inside of the drum 20. In this case, when the head portion 101 is made of synthetic resin as compared to the metal member, damage caused by contact with clothing can be prevented.

In addition to this, it is possible to protect the garment by using various other methods such as a method of separately including a detachable cap (not shown) to cover the head portion 101.

Hereinafter, referring to FIG. 4, a second preferred embodiment according to the present invention will be described. However, for a similar configuration to the first embodiment, a separate description will be considered.

4 is a cross-sectional view showing a cross section of a portion where the weight balance of the clothes treating apparatus according to the second embodiment is fastened.

In the first embodiment, a configuration in which the weight balance 80 is fastened in front of the drum 20 is used. On the contrary, in the present embodiment, the weight balance 80 may be installed at the rear side of the drum 20 to rotate together with the drum 20.

In general, the rear side of the drum 20 is provided with a drive unit 40 for rotating the drum 20, the drive unit 40 is coupled to the spider 90 is installed on the rear wall of the drum 20 The power of the driving unit 40 is transmitted to the drum 20.

Here, the spider 90 includes a plurality of arms extending radially about a portion corresponding to the rotation axis of the drum 20, the drive unit 40 is connected to the center of the spider 90 (See Figure 1).

At this time, the weight balance 80 is preferably fixed integrally to the rear wall of the spider 90 by the fixing member. The spider 90 may be coupled to the driving unit 40 at the rear center portion, and a predetermined space may be formed in the rearward direction at a portion adjacent to the outer circumferential surface of the drum 20. Therefore, when the weight balance 80 is fixed to the rear side of the spider 90 as in the present embodiment, the overall length of the clothes treating apparatus can be shortened as compared with the first embodiment.

Specifically, the fixing member of this embodiment is also composed of the screw member 100 as described in the first embodiment. In addition, the weight balance 80 includes a through hole 82 through which the screw member 100 penetrates, and a screw member 100 passing through the through hole 82 is formed at a rear wall of the spider 90. It may be provided with a boss portion 81 to be fastened.

Therefore, according to the present embodiment, the screw member 100 has the body portion 102 penetrating through the through-hole 82 of the weight balance 80 from the rear side of the weight balance 80 and the spider 90. It is coupled to the boss portion 81 of). That is, the weight balance 80 according to the present embodiment is fixed via the spider 90 installed on the rear side of the drum 20 to rotate the drum 20 while the eccentric rotation of the drum 20 is performed. It can be corrected.

Hereinafter, a third preferred embodiment according to the present invention will be described with reference to FIGS. 5 and 6. However, the description similar to the first and second embodiments will be omitted.

5 is a perspective view showing a portion where the weight balance 80 of the clothes treating apparatus according to the third embodiment is fastened, and FIG. 6 is a cut perspective view showing a shape in which the screw member 100 is coupled in FIG. 5. .

In the first embodiment, in the installation of the weight balance 80 in front of the drum 20, the screw member 100 is coupled to the boss from the inside of the drum 20, the boss portion formed on the weight balance 80 It is the structure couple | bonded with (81). In contrast, the present embodiment discloses a configuration in which the screw member 100 is not fixed to the boss portion 81 but is fixed using the nut 130.

As shown in FIGS. 5 and 6, the screw member 100 is coupled to the head portion 101 fixed to the inner wall of the drum 20 and the nut 130 through the inner wall of the drum. 102 can be made.

At this time, the head portion 101 is preferably mounted on the inner surface of the drum 20, it is preferably configured not to rotate in the seated state. This is because when the screw member 100 is assembled when the screw member 100 is fitted from the inner side of the drum 20, the nut 130 rotates while the screw member 100 rotates and screwing is not performed. .

Therefore, a head part mounting part 25 on which the head part 101 of the screw member 100 is mounted may be provided on the inner surface of the drum 20, and the head part mounting part 25 is the head part 101. Is preferably provided in a shape that can limit the rotation in the seated state.

As shown in FIG. 6, in the present embodiment, it is preferable to form the head seating portion 25 having a quadrangular shape on the inner wall surface of the drum 20. In addition, the shape of the head portion 101 may also be formed in a rectangular shape corresponding to the shape of the head seating portion 25. Therefore, when the nut 130 is screwed to the body portion 102 from the outside of the drum 20, it is possible to prevent the screw member 100 from rotating.

In this embodiment, the shape of the head seating portion 25 and the head portion 101 is configured in the shape of a rectangle, but the present invention is not limited thereto. It is also possible to have a polygonal shape other than a quadrangle, and even if the shape of the head seating portion 25 and the head portion 101 is not the same, rotation is not performed while the head portion 101 is seated. It is also possible to apply using a shape that is not modified.

Here, the head seating portion 25 is preferably formed to be concave so as to prevent the head portion 101 is seated inside the drum 20, the head portion 101 of the clothing It is desirable that the surface treatment be performed to prevent damage. The configuration thereof is very similar to that of the first embodiment, and thus a detailed description thereof will be omitted.

Meanwhile, as shown in FIGS. 5 and 6, the screw member 100 inserted from the drum 20 passes through the front surface of the drum 20 and passes through the weight balance 80 while the weight balance 80 passes through the weight balance 80. ) Position can be fixed.

Accordingly, in the present embodiment, the fastening rib 83 extends inwardly from the inner circumferential surface of the weight balance 80, and the body portion 102 of the screw member 100 penetrates the fastening rib 83. It is preferably formed to. In this case, as compared with penetrating the body of the weight balance 80, the length of the body portion 102 can be shortened, and the nut coupling is made inside the weight balance 80 to form a compact appearance when assembling the product. It is possible to do

On the other hand, the body portion 102 of the screw member 100 is passed through the fastening ribs 83 and the screw is made by a nut 130, a separate between the nut 130 and the fastening ribs 83 It is preferable to further include a ring member 140 of.

In general, the nut 130 is made of a high-strength metal member, when the weight balance 80 is repeatedly fastened and separated during repair, the fastening ribs 83 having a relatively low strength and a thin thickness by the nut 130. ) Is likely to be damaged.

Therefore, in the present embodiment, before the screw member 100 is fastened using the nut 130, the ring member 140 is provided such that the nut 130 and the fastening rib 83 do not directly contact each other. It may include. The ring member 140 is formed in a circular shape so as to form a hollow through which the body portion 102 penetrates, but may be formed in other shapes.

When the ring member 140 is provided as in the present embodiment, when the nut 130 is coupled as well as the damage prevention of the fastening rib 83, the force pressed by the nut 130 is applied to the fastening rib ( 83) can be distributed evenly.

According to this embodiment described above, in fastening the screw member 100 in the direction of the weight balance 80 from the inside of the drum 20, by rotating the nut 130 on the outside of the drum 20 Due to the bar can be fixed to the screw member 100, it is possible to improve the inconvenience of screwing by screwing the screw member 100 inside the drum.

1 is a cross-sectional view showing the appearance of a laundry treatment apparatus according to a first embodiment of the present invention;

2 is a cross-sectional view showing a cut surface of the front of the drum,

3 is a cutaway perspective view of the fastened portion of FIG.

4 is a cross-sectional view showing a cross section of a portion where the weight balance of the clothes treating apparatus according to the second embodiment is fastened;

5 is a perspective view showing a portion where the weight balance of the clothes treating apparatus according to the third embodiment is fastened;

6 is a cut perspective view illustrating a shape in which the screw member is coupled to FIG. 5.

Claims (15)

main body; A drum rotatably installed in the main body; A weight balance for correcting the eccentric rotation of the drum; And And a fixing member coupled to the rotating shaft in which the drum is rotated in a horizontal direction to fix the weight balance to rotate together with the drum. The method of claim 1, Clothing processing apparatus, characterized in that the front surface of the drum is formed with a groove in which the weight balance is seated along the circumferential direction. The method of claim 2, The drum has a flange extending forward along an outer circumferential surface, and the weight balance device is characterized in that seated inside the flange. The method of claim 3, The fixing member comprises a plurality of screw members for fixing the weight balance to the drum. The method of claim 4, wherein The weight balance is a garment processing apparatus, characterized in that the boss portion for engaging with the screw member is formed on the surface adjacent to the drum, the screw member is fastened to the boss portion through the drum from the inside of the drum. . The method of claim 5, The screw member includes a body part coupled to the boss and a head part fixed to an inner wall of the drum, and a head part formed on the inner wall of the drum to be concave to prevent the head part from protruding into the drum. Clothing processing apparatus comprising a seating portion. The method of claim 4, wherein The weight balance further includes a fastening rib extending to contact a surface adjacent to the drum, wherein the screw member is fixed by a nut after passing through the drum and the fastening rib from the inside of the drum. Clothing processing device. The method of claim 7, wherein The screw member includes a body portion coupled with the nut and a head portion fixed to an inner wall of the drum, and a head portion recessed on the inner wall of the drum to prevent the head portion from protruding into the drum. Clothing processing apparatus comprising a seating portion. The method of claim 8, When tightening the screw using the nut, the head portion and the head portion mounting portion in order to prevent the head portion of the screw is rotated clothes processing apparatus, characterized in that the polygonal shape. The method of claim 8, The fixing member further comprises a ring member installed between the fastening rib and the nut. The method according to claim 6 and 8, The head unit is a clothing processing apparatus, characterized in that the curved shape to prevent damage to the clothing due to friction. The method according to claim 6 and 8, The head unit is a garment treatment apparatus characterized in that the resin coating treatment is made to prevent damage to the garment due to friction. The method of claim 1, And a spider installed at the rear of the drum to transmit rotational force to the drum, wherein the weight balance is integrally fixed to the rear wall of the spider by the fixing member. The method of claim 13, The drum is provided with a flange extending rearward along the outer circumferential surface, the weight balance device is characterized in that the seating contact with the inner circumferential surface of the flange. The method according to claim 13 or 14, And the fixing member is a screw member penetrating the weight balance from the rear of the weight balance and coupled to the rear wall of the spider.

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