KR20100105203A - A laundry treatment machine - Google Patents

Abstract

PURPOSE: A washing machine is intended to prevent parts from becoming damaged by preventing the collision between a cabinet and an outer tub in excessive vibration and to provide a mass outer tub. CONSTITUTION: A washing machine is composed of a cabinet, an outer tub(4), a suspension, and a vibration limiter(70). The outer tub is arranged in the cabinet. In the outer tub, the water is stored. The suspension connects the cabinet and the outer tub so that the outer is suspended on the cabinet. The vibration limiter is arranged on the outer tub. The vibration limiter is formed so that at least a part of the suspension is inserted and covered. The vibration limiter reduces the vibration by limiting the moving range of the inserted part in excessive vibration.

Description

Laundry treatment machine {A laundry treatment machine}

The present invention relates to a laundry treatment apparatus, and more particularly, to a laundry treatment apparatus in which excessive vibration of the outer tub is prevented, a collision between the outer tub and the cabinet is prevented, and a large capacity of the outer tub is possible.

Generally, a laundry treatment machine uses water, detergents, and mechanical action to remove dirt from clothes, bedding, etc. (hereinafter, referred to as 'fo'), and dry hot air and mechanical action heated by a heater. It is divided into a dryer for drying the wet cloth using a back, and a dry combined washing machine having a washing function and a drying function.

In addition, the washing machine has a top rod type washing machine in which a cloth entry hole through which a cloth is introduced and exits is formed on the upper surface of the cabinet, and washing is performed by rotational flow generated when the inner tank is rotated, and a cloth entry hole is formed in the front of the cabinet and the drum is rotated. The washing machine may be classified into a drum washing machine in which washing is performed by a drop of cloth.

The conventional top rod type washing machine includes an outer tank in which washing water is stored, an inner tank disposed inside the outer tank, and laundry is placed therein, and a motor device disposed below the inner tank to rotate the inner tank. The outer tub is suspended by suspension inside the cabinet. That is, the upper end of the suspension is connected to the inner upper portion of the cabinet, the lower end of the suspension is connected to the lower portion of the outer tub. The suspension serves to absorb the vibration of the outer tub.

However, in the conventional top rod type washing machine, when the outer vibration of the outer tub is often caused when the outer tub collides with the inner surface of the cabinet, the collision may damage parts such as the outer tub, the cabinet, and the motor. There is a problem.

In addition, in recent years, since the washing machine is becoming more and more large-capacity, the size of the outer tub is gradually increasing. Therefore, since the gap between the outer tub and the cabinet is gradually reduced, there is a problem that the outer tub collides with the inner surface of the cabinet more frequently.

An object of the present invention is to provide a laundry treatment apparatus that the outer tank to prevent the collision of the cabinet, to ensure the reliability while achieving a large capacity of the outer tank.

Laundry processing apparatus according to the invention is disposed in the cabinet, the outer tank is disposed inside the cabinet, the wash water is stored, the suspension for connecting the cabinet and the outer tank so that the outer tank is suspended in the cabinet, At least a portion of the suspension is inserted and wrapped to include a vibration limiter for limiting the vibration by limiting the moving range of the inserted portion during excessive vibration.

In the present invention, the vibration limiter may limit the vibration in the direction toward the outer tub and the vibration in a direction parallel to the circumferential surface of the outer tub during the vibration of the suspension.

In the present invention, the vibration limiter may be formed in a polyhedral shape, and an insertion hole into which the suspension is inserted may be formed.

In the present invention, the vibration limiter may be opened at one side of the suspension is inserted.

In the present invention, a locking step may be formed on the opening side of the insertion hole to prevent the suspension of the suspension inserted.

In the present invention, the inner circumferential surface of the insertion hole may be made of a curved surface to correspond to the outer circumferential surface of the suspension.

In the present invention, the cross-sectional area of the insertion hole may be formed larger toward the upper side.

In the present invention, the cross-sectional area of the insertion hole is larger than the cross-sectional area of the suspension, so that the suspension may contact the inner circumferential surface of the insertion hole only when the suspension vibrates more than a predetermined distance.

In the present invention, the vibration limiter may be formed in a ring-shaped cross section to surround the circumferential surface of the suspension.

In the present invention, the vibration limiter may be installed below the circumferential surface of the outer tub.

The laundry treatment device according to the present invention includes a vibration limiter disposed in the outer tub and formed so that the suspension is inserted and wrapped, and the vibration limiter absorbs the kinetic energy while limiting the moving range of the suspension during excessive vibration, thereby attenuating the vibration. By preventing the collision between the cabinet and the outer tank that may occur during vibration, there is an effect that can prevent damage to the peripheral components.

In addition, since the collision between the outer tub and the cabinet can be effectively prevented, it is possible to minimize the gap between the outer tub and the cabinet, and there is an advantage in that a large capacity of the outer tub is enabled.

In addition, since the vibration limiter is formed to surround not only the front and rear sides of the suspension but also the left and right sides, the vibration limiter has an advantage of absorbing vibration in various directions including the front and rear and left and right directions of the suspension.

Hereinafter, a top load type washing machine (hereinafter referred to as a "washing machine") as an embodiment of a laundry treatment machine according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a top load type washing machine according to an embodiment of the present invention, Figure 2 is a longitudinal sectional view of the washing machine shown in FIG.

1 and 2, a washing machine according to an embodiment of the present invention includes a case 1 forming an appearance and a leg assembly 10 coupled to a lower portion of the case 1.

The case 1 has an upper surface and a lower surface formed to be open, a cabinet 2 forming a side surface of a washing machine, a top cover 3 installed to cover an open upper surface of the cabinet 2, and the cabinet ( It includes a base (5) installed on the open lower surface of 2).

A drive device such as an outer tub 4 in which the wash water is accommodated in the cabinet 2, an inner tub 6 disposed inside the outer tub 4, in which laundry is accommodated, and a motor driving the inner tub 6. (8), a water supply assembly for supplying wash water into the outer tub (4), a drainage assembly (20) for draining the wash water in the outer tub (4) after washing or dehydration is completed, and the water supply assembly Detergent supply unit 30 for supplying a detergent with the wash water is connected to the water supply is disposed.

The top cover 3 is provided with a cloth entrance hole 3a to put or take out the cloth. The top cover 3 is provided with a door 50 for opening and closing the gun entrance hole 3a. The door 40 may be made of at least a portion of the glass so that the interior can be seen. That is, the door 40 includes a frame portion 40a and a glass portion 40b fitted to the frame portion 40a.

In addition, one side of the top cover 3 is equipped with a display panel 7 for inputting the operation of the washing machine or displaying the operating state of the washing machine.

At the bottom of the inner tub 6, a pulsator 9 is provided for forming a rotational flow of wash water accommodated in the outer tub 4.

On the upper side of the inner tank 6, a balancer 15 is installed to prevent the inner tank 6 from losing balance due to the deflection of the cloth.

The balancer 15 may be a liquid balancer filled with a liquid therein.

The outer tub 4 is arranged to be suspended by the suspension 60 on the inner top of the cabinet 2.

On the upper side of the outer tub 4, an outer tub cover 14 for preventing separation of the cloth and scattering of the washing water is provided.

The water supply assembly includes an external hose 11 for guiding the washing water supplied from an external faucet, etc. to the washing machine, a water supply valve 12 connected to the external hose 11 to regulate the water supply of the washing water, and the And a water supply hose 13 connecting the water supply valve 12 and the detergent supply unit 30. The water supply valve 12 and the water supply hose 13 form a water supply passage for supplying wash water.

The detergent supply unit 30 is disposed on the water supply passage. The detergent supply unit 30 includes a detergent box housing 31 installed in communication with the water supply hose 13, a detergent box 32 detachably attached to the detergent box housing 31, and the detergent box housing ( It is fixed to 31 and disposed on the upper surface of the detergent box 32 includes a detergent box cover for spraying the wash water.

The detergent box 32 is coupled to the detergent box housing 31 so that a user can take it out of the detergent box housing 31 to inject detergent. The detergent box 32 may be coupled to the detergent box housing 31 so as to slide forward and backward. At least a part of the rear surface of the detergent box 32 may be opened so that detergent may be introduced into the detergent box housing 31 through the rear surface of the detergent box 32 when the washing water is supplied.

The drainage assembly 20 is disposed between the outer tub 4 and the base 5. The drainage assembly 20 includes a first drain hose 21 connected to the lower portion of the outer tub 4, a drain valve 22 installed on the first drain hose 21 to control the drainage of the wash water; A drain pump housing 24 including a drain pump 23 for pumping wash water, and the wash water connected to the drain pump housing 24 and pumped by the drain pump 23 to the cabinet 2. It includes a second drain hose 25 for draining to the outside.

A drain motor for driving the drain pump 23 is embedded in the drain pump housing 24.

3 is a perspective view showing a portion of the outer shell is installed vibration limiter according to an embodiment of the present invention, Figure 4 is an exploded perspective view of the vibration limiter shown in Figure 3, Figure 5 is a vibration limiter of Figure 4 It is an enlarged perspective view, and FIG. 6 is sectional drawing seen from the AA direction in FIG.

3 to 5, the laundry treatment machine according to the present invention is disposed in the outer tub 4, and at least a portion of the suspension 60 is inserted to surround the inserted portion while the suspension 60 is closed. It further includes a vibration limiter 70 to limit the vibration of.

The vibration limiter 70 is installed on the surface facing the suspension 60 on the outer circumferential surface of the outer tub 4. The vibration limiter 70 is preferably installed in the lower part of the outer circumferential surface of the outer tub (4).

The vibration limiter 70 may have a polyhedron shape.

The vibration limiter 70 may be made of rubber or the like of an elastic material so as to provide elastic force to the suspension 60 when the suspension 60 is vibrated.

The vibration limiter 70 is formed with an insertion hole 71 into which the suspension 60 is inserted. The insertion hole 71 is formed in the front portion 70a from the vibration limiter 70 toward the suspension 60.

The suspension 60 has a suspension cap 61 supported at the lower portion of the outer tub 4, an upper end supported by the cabinet 2, and a lower end suspension suspension 62 passing through the suspension cap 61. A suspension base 63 disposed at a lower end of the suspension bar 62 to be in airtight contact with an inner circumferential surface of the suspension cap 61, and disposed between the suspension cap 61 and the suspension base 63. And a compression spring 64.

The suspension bar 62 is inserted into the insertion hole 71 of the vibration limiter 70.

The insertion hole 71 is formed such that the front surface thereof is opened so that the suspension bar 62 is inserted in the lateral direction, that is, in the direction toward the outer tub 4. In addition, the insertion hole 71 is formed so that the upper and lower sides are opened so that the suspension bar 62 penetrates in the vertical direction.

When the vibration limiter 70 is in contact with the suspension 60 due to the vibration of the suspension 60, the vibration limiter 70 and the suspension 60 are formed in surface contact. When the suspension 60 vibrates in surface contact with the vibration limiter 70, the phenomenon in which the suspension 60 bounces may be prevented. In addition, when the surface contact than the case of the line contact, because the contact time is longer, the damping force can be improved than when the line contact.

The suspension bar 62 has a cylindrical shape. Accordingly, the inner circumferential surface of the insertion hole 71 has a curved surface to correspond to the outer circumferential surface of the suspension bar 62.

In addition, since the suspension bar 62 is disposed to be inclined at a predetermined angle with the outer tub 4, the front portion 70a of the vibration limiter 70 is also downward to correspond to the suspension bar 62 inclined at a predetermined angle. It is formed to be inclined.

In addition, referring to Figure 6, the cross-sectional area of the insertion hole 71 is formed larger toward the upper side. That is, the upper diameter d1 of the insertion hole 71 is smaller than the lower diameter d2 of the insertion hole 71.

In addition, the cross-sectional area of the insertion hole 71 is formed larger than the cross-sectional area of the suspension bar 62. The cross-sectional area of the insertion hole 71 varies depending on the vertical position, and the cross-sectional area of the narrowest portion of the insertion hole 71 is formed larger than the cross-sectional area of the suspension bar 62.

Therefore, the suspension 60 is always inserted into the insertion hole 71 of the vibration limiter 70, but is in contact with the inner circumferential surface of the insertion hole 71 of the vibration limiter 70 only during excessive vibration, Normally, the inner circumferential surface of the insertion hole 71 is not contacted. That is, the suspension bar 62 contacts the inner circumferential surface of the insertion hole 71 only when the suspension bar 62 vibrates for a predetermined distance or more.

A locking jaw 73 is formed at an open front side of the insertion hole 71 to prevent separation of the inserted suspension 60. By the locking step 73, the width of the open front portion of the insertion hole 71 is formed smaller than the diameter of the suspension bar 62.

On the other hand, the vibration limiter 70 may be fastened and fixed to the outer tub 4 by fastening members such as bolts 80, or may be attached by an adhesive member (not shown). Here, the vibration limiter 70 will be described as being limited to being fastened by the bolt 80.

A through hole 72 is formed inside the insertion hole 71 to allow the bolt 80 to pass therethrough.

The outer tub 4 is provided with a fastening boss to fasten the bolt 80 passing through the through hole 72. The diameter of the through hole 72 is formed larger than the diameter of the fastening boss 4a. The fastening boss 4a may be inserted into the through hole 72.

A washer 81 is disposed between the bolt 80 and the fastening boss 4a.

The length of the bolt 80 is shorter than the depth of the front-rear direction of the through hole 72, so that the bolt 80 does not protrude out of the insertion hole 71.

Four suspensions 60 are arranged to be spaced apart from each other by a predetermined interval, so as to balance the outer tub 4.

The vibration limiter 70 is also made up of four, corresponding to each of the four suspensions (60).

Referring to the operation according to an embodiment of the present invention configured as described above, as follows.

FIG. 7 is a plan view showing a vibration limiter and a suspension bar according to an embodiment of the present invention, FIG. 8 is a plan view showing a state in which the suspension bar vibrates in left and right directions in FIG. 7, and FIG. 9 is a front and rear direction in FIG. 7. It is a top view which shows the state which vibrates.

Referring to FIG. 7, when the vibration is not generated in the outer tub 4 or when the vibration of the outer tub 4 is small, the suspension bar 62 is an insertion hole 71 of the vibration limiter 70. It does not contact the inner circumferential surface of the insertion hole 71 in the interior.

In the general vibration of the outer tub 4, the vibration of the outer tub 4 is transmitted to the suspension 60, so that the compression spring 64 inside the suspension cap 61 is compressed or stretched to absorb the vibration. do.

On the other hand, during the excessive vibration of the outer tub 4, the outer tub 4 is a phenomenon that the translational movement in the radial direction toward the cabinet (2) occurs.

When the outer tub 4 is translated in the radial direction, the suspension 60 may also be excessively shaken in the radial direction of the outer tub 4.

8 and 9, the suspension bar 62 is in contact with the inner circumferential surface of the insertion hole 71 during excessive vibration.

When the suspension bar 62 contacts the insertion hole 71, the vibration limiter 70 absorbs the kinetic energy of the suspension 60 while providing an elastic force.

Therefore, the kinetic energy of the suspension 60 is dissipated, so that the transient vibration of the suspension 60 can be limited.

When the suspension bar 62 vibrates in left and right directions, as shown in FIG. 7, the suspension bar 62 is in contact with the left and right sides of the inner circumferential surface of the insertion hole 71 and the suspension bar 62. ) Kinetic energy is dissipated.

In addition, when the suspension bar 62 vibrates in the front-rear direction, as shown in FIG. 8, the suspension bar 62 contacts the front and rear sides of the inner circumferential surface of the insertion hole 71 and the suspension The kinetic energy of the bar 62 is dissipated. At this time, the suspension bar 62 is not separated from the vibration limiter 70 by the locking step 73.

As described above, the vibration limiter 70 may hold the suspension bar 62 even when the suspension bar 62 is vibrated in the forward and backward directions as well as in the left and right directions.

Since the vibration limiter 70 and the suspension 60 are in surface contact, the phenomenon in which the suspension 60 bounces when the suspension 60 is in contact with the vibration limiter 70 may be prevented. In addition, since the contact time is longer in the case of surface contact than in the case of line contact, it is more effective in absorbing kinetic energy.

That is, the suspension 60 is also excessively moved along with the excessive vibration of the outer tub 4. Since the kinetic energy of the suspension 60 is absorbed by the vibration limiter 70, the suspension of the suspension 60 Excessive movement is limited. When excessive movement of the suspension 60 is limited, since the suspension 60 can effectively support the outer tub 4, excessive vibration of the outer tub 4 is also prevented, so that the outer tub 4 is The phenomenon of hitting the cabinet 2 and the like can be prevented.

Since the collision between the outer tub 4 and the cabinet 2 can be effectively prevented, it is possible to set the separation distance between the outer tub 4 and the cabinet 2 to be smaller in design, so that the outer tub 2 ) Can increase the size of the laundry capacity.

10 is a plan view showing a vibration limiter according to another embodiment of the present invention.

Referring to FIG. 9, the vibration limiter 90 according to another embodiment of the present invention may have a configuration and operation other than that in which the cross section is formed in a ring shape so as to surround the entire circumferential surface of the suspension bar 62 of the suspension 60. Since the present invention may be implemented in the same or similar manner to the above-described embodiment of the present invention, redundant description with the above-described embodiment of the present invention may be omitted.

That is, the vibration limiter 90 has an insertion hole 91 formed so that the suspension bar 62 is inserted upward and downward when assembled. The insertion hole 91 is formed so that only the upper and lower surfaces are opened. Therefore, the cross section of the vibration limiter 91 has a closed curved shape.

The vibration limiter 91 may be formed to correspond to the outer circumferential surface shape of the outer tub 4 so that the surface facing the outer tub 4 may be in close contact with the outer tub 4.

The vibration limiter 91 may be fixed to the outer tub 4 by a separate clamping member or the like, or may be attached to the outer tub 4 by an adhesive or the like.

Those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

The laundry treatment device according to the present invention includes a vibration limiter disposed in the outer tub and formed so that the suspension is inserted and wrapped, and the vibration limiter absorbs the kinetic energy while limiting the moving range of the suspension during excessive vibration, thereby attenuating the vibration. By preventing the collision between the cabinet and the outer tank that may occur during vibration, there is an effect that can prevent damage to the peripheral components.

In addition, since the collision between the outer tub and the cabinet can be effectively prevented, it is possible to minimize the gap between the outer tub and the cabinet, there is an advantage that the large capacity of the outer tub is possible.

In addition, since the vibration limiter is formed to surround not only the front and rear sides of the suspension but also the left and right sides, the vibration limiter has an advantage of absorbing vibration in various directions including the front and rear and left and right directions of the suspension.

1 is a perspective view of a top load type washing machine according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the washing machine shown in FIG. 1.

Figure 3 is a perspective view of a portion of the outer tub is installed with a vibration limiter according to an embodiment of the present invention.

4 is an exploded perspective view of the vibration limiter shown in FIG. 3.

FIG. 5 is an enlarged perspective view of the vibration limiter shown in FIG. 4.

FIG. 6 is a cross-sectional view seen from the A-A direction in FIG. 5.

7 is a plan view showing a vibration limiter and a suspension bar according to an embodiment of the present invention.

FIG. 8 is a plan view illustrating a state in which the suspension bar vibrates in left and right directions in FIG. 7.

FIG. 9 is a plan view illustrating a suspension bar oscillating in the front-rear direction in FIG. 7.

10 is a plan view showing a vibration limiter according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

2: cabinet 4: outer tub

60: suspension 62: suspension bar

70, 90: vibration limiter 71: insertion hole

72: through hole 73: locking jaw

80: bolts

Claims (10)

Cabinets; An outer tub disposed inside the cabinet and configured to store wash water; A suspension connecting the cabinet and the outer tub to suspend the outer tub on the cabinet; And a vibration limiter disposed in the outer tub, the vibration limiter configured to insert and wrap at least a portion of the suspension, thereby limiting a moving range of the inserted portion during excessive vibration. The method according to claim 1, The vibration limiter is, And a vibration in the direction toward the outer tub during vibration of the suspension and a vibration in a direction parallel to the circumferential surface of the outer tub. The method according to claim 1, The vibration limiter is made of a polyhedron shape, Laundry treatment device having an insertion hole is inserted into the suspension. The method according to claim 1, The vibration limiter is a laundry processing device having one side opening in which the suspension is inserted. The method according to claim 3, Laundry processing apparatus is formed on the opening side of the insertion hole to stop the separation of the inserted suspension. The method according to claim 3, The inner circumferential surface of the insertion hole is a laundry treatment device consisting of a curved surface corresponding to the outer circumferential surface of the suspension. The method according to claim 3, Washing machine is formed in the cross-sectional area of the insertion hole is larger toward the upper side. The method according to claim 3, The cross-sectional area of the insertion hole is formed larger than the cross-sectional area of the suspension, the laundry is in contact with the inner circumferential surface of the insertion hole only when the suspension vibrates more than a predetermined distance. The method according to claim 1, The vibration limiter is a laundry treatment device made of a ring-shaped cross-section to surround the circumferential surface of the suspension. The method according to claim 1, The vibration limiter is a laundry treatment device installed below the circumferential surface of the outer tub.

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