KR102104440B1 - Laundry treatment apparatus - Google Patents

Abstract

In the present invention, the piston and the cylinder are moved relative to each other as the outer shell vibrates, and at this time, the horizontal vibration of the outer shell is attenuated by the frictional force acting between the other and the other by the friction member provided on one of the piston and the cylinder. It relates to a laundry treatment device, in particular, it relates to a laundry treatment device that prevents the piston and the cylinder from being separated from each other.

Description

Laundry treatment apparatus

The present invention relates to a laundry treatment device capable of damping the horizontal vibration of the outer tank.

In general, a laundry treatment device is a device that processes laundry by physically and chemically acting on the laundry, a washing machine that removes contaminants from the laundry, a dehydrator that spins the washing tank containing the laundry at a high speed, and a cold air into the laundry tank. Alternatively, a dryer for drying wet laundry by applying hot air is commonly referred to as a dryer.

 Such a laundry treatment apparatus includes an outer tub accommodated in a form suspended by a support rod inside a casing, and an inner tub rotated within the outer tub while laundry (or cloth) is accommodated, and in the case of a washing machine, is rotated within the inner tub. It may also include a pulsator (or washing blade). Such a configuration causes vibration of the outer tank when the inner tank or the pulsator is rotated, and accordingly, an apparatus for buffering the vibration of the outer tank is provided in a typical laundry treatment apparatus.

Conventionally, a shock absorber for connecting the support rod and the outer tank was provided, but the shock absorber mainly serves to reduce vibration in the vertical direction of the outer tank, and was insufficient to reduce vibration in the horizontal direction.

Particularly, in recent years, in order to improve the usability of the living space, a study has been actively conducted to increase the capacity of the outer tub to the maximum without increasing the overall size of the laundry treatment device. The gap between the outer troughs is getting smaller. However, the narrower the gap between the casing and the outer tub, the more likely the collision between the outer tub and the casing to be caused by horizontal vibration, so that vibration in the horizontal direction of the tub can be reduced more effectively. It is very important to prepare a plan.

The problem to be solved by the present invention is to provide a laundry treatment apparatus capable of reducing horizontal vibration of an outer tank.

The laundry treatment apparatus of the present invention includes a casing; An outer tub provided in the casing; A support rod for hanging the outer tub in the casing; A first connecting member connected to a support located outside the outer tub; The first connecting member is connected to the outer tub, and is moved along the longitudinal direction of the first connecting member by vibration of the outer tub, but is displaced with respect to the first connecting member in correspondence to the horizontal component distance of the moved displacement. A horizontal displacement portion having; And a friction member provided at any one of the first connection member and the horizontal displacement portion to provide a friction force between the other, and the horizontal displacement portion includes a locking protrusion, and the first connection member comprises the bell. It includes a transverse rib extending a predetermined section transverse to the direction, and the displacement of the horizontal displacement portion with respect to the first connecting member is limited by the locking projection being caught by the transverse rib.

Alternatively, the laundry treatment apparatus of the present invention includes a casing; An outer tub provided in the casing; A support rod for hanging the outer tub in the casing; A first connecting member connected to a support located outside the outer tub; The first connecting member is connected to the outer tub, and is moved along the longitudinal direction of the first connecting member according to the vibration of the outer tub, but is displaced with respect to the first connecting member corresponding to the horizontal component distance of the moved displacement A horizontal displacement portion having; And a friction member provided on any one of the first connecting member and the horizontal displacement part to provide a friction force between the other, and wherein the horizontal displacement part has a displacement of the horizontal displacement part with respect to the first connection member. When reaching a certain amount, it includes a locking projection to limit the displacement by engaging the first connecting member.

Alternatively, the laundry treatment apparatus of the present invention includes a casing; An outer tub provided in the casing; A support rod for hanging the outer tub in the casing; A piston connected to any one of the outer casing and the support located outside the outer casing; A cylinder in which the piston is inserted, connected to the other of the outer shell and the support, and having a displacement with respect to the piston as the outer shell vibrates; A friction member provided on one of the piston and the cylinder to provide friction between the other; And a limiting member coupled to the cylinder to limit displacement of the cylinder with respect to the piston.

The laundry treatment apparatus of the present invention has an effect of reducing the horizontal vibration of the outer tub.

In addition, the laundry treatment apparatus of the present invention has an effect that can prevent the piston and the cylinder having a displacement relative to each other according to the vibration of the outer tub to be separated from each other.

In addition, the laundry treatment apparatus of the present invention has an effect that can increase the capacity of the outer tank.

In addition, the laundry treatment apparatus of the present invention has an effect of improving durability and preventing occurrence of abnormal noise by preventing collision between the outer shell and the casing.

In addition, the laundry treatment apparatus of the present invention can reduce the driving time for dispersing the fabric by rapidly damping the vibration of the outer tank even in a situation where eccentricity of the fabric is caused to some extent. Therefore, considering that a dispersion and dispersion operation is performed to change the position of the guns in the inner tank to control the vibration of the outer tank to a predetermined level or less for the dehydration entry, the effect of reducing the time required for dehydration entry is reduced. have.

1 illustrates the interior of a washing machine according to an embodiment of the present invention.
Figure 2 shows a horizontal vibration damping unit according to an embodiment of the present invention.
3 is a cross-sectional view showing the internal structure of the horizontal vibration damping unit of FIG. 2.
4 is an exploded perspective view of the horizontal vibration damping unit of FIG. 2.
5 shows another embodiment of the moving member.
6 is a cross-sectional view showing a coupling process of the moving member connecting portion and the moving member of FIG. 5 according to another embodiment of the present invention.
FIG. 7 shows that the moving member of FIG. 5 is fixed to the pivot.
8 is a longitudinal sectional view of the moving member of FIG. 5.
9 is a perspective view showing a horizontal vibration damping unit according to another embodiment of the present invention.
10 is an exploded perspective view of the horizontal vibration damping unit of FIG. 9.
11 is a cross-sectional view showing a structure in which the movement of the cylinder with respect to the piston is restricted by the limiting member in the horizontal vibration damping unit of FIG. 9.
12 is a perspective view showing the limiting member shown in FIGS. 9 to 11.
13 is a partially enlarged view of FIG. 9.
14 is a cross-sectional view showing a coupling structure between the limiting member and the cylinder in the horizontal vibration damping unit of FIG. 9.
15 is a view of the first connecting member of FIG. 9 viewed in the longitudinal direction.
16 is a perspective view showing that the limiting member according to another embodiment of the present invention is assembled to the first connecting member of FIG. 15.
17 is a perspective view showing the limiting member shown in FIG. 16.
18 is a perspective view showing a limiting member according to another embodiment of the present invention.
19 is a perspective view showing a limiting member according to another embodiment of the present invention.
20 is a perspective view showing a horizontal vibration damping unit according to another embodiment of the present invention.
21 shows a horizontal vibration damping unit according to another embodiment of the present invention.
22 shows the limiting member and ring of FIG.
23 shows a horizontal vibration damping unit according to another embodiment of the present invention.
24 is a cross-sectional view of the male vibration damping portion shown in FIG. 23.
25 is an exploded perspective view of the horizontal vibration damping unit illustrated in FIG. 23.
26 illustrates a horizontal vibration damping unit according to another embodiment of the present invention.
27 is a cross-sectional view of the horizontal vibration damping unit shown in FIG. 26.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to completely inform the person having the scope of the invention, and the present invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Hereinafter, a washing machine will be described as an example of a laundry treatment device, but it is stated that the present invention is not limited thereto.

1 illustrates the interior of a washing machine according to an embodiment of the present invention. Referring to FIG. 1, the washing machine according to an embodiment of the present invention includes a casing 10 that forms an exterior, a display that displays information on an operation state of the washing machine, operation keys receiving various control commands from a user, and the like. It includes a control panel 11 to provide a user interface, and a door 7 that is rotatably provided in the casing 10 to open and close an access hole (not shown) through which laundry enters and exits.

The outer tank 2 containing the washing water is suspended inside the casing 10 by the support rod 15. In the outer tank 2, an inner tank 3 for receiving laundry is rotatably provided, a plurality of holes through which wash water passes is formed in the inner tank 3, and a pulsator 4 is provided at the bottom of the inner tank 3. It can be provided to be rotatable.

The casing defined in the present invention is sufficient as long as it forms the appearance of the washing machine, but it is particularly preferable that the one end of the support rod 15 for hanging the outer tub 2 is a stationary non-moving fixture so that it can be fixed by the casing.

The casing 10 may include a main body 12 with an upper side opened, and a top cover 14 provided on an upper side of the main body 12 and formed with an entrance hole in which laundry enters and exits at a substantially central portion.

The pivot 18 is coupled to one end of the support rod 15. The pivot 18 is a pivot body portion 18b that is pivotally supported by the pivot support portion 16 and a neck 18a extending from the pivot body portion 18b and through which the support rod 15 passes. It may include (see Figure 7).

The pivot support 16 is fixed to the casing 10 to support the pivot 18 to be pivoted within a predetermined range, and the insertion of the pivot 18 is made from the upper side through an opening formed in the central portion, The complete body is not passed and the pivot body portion 18b is supported by engaging the opening. The pivot support 16 can be fixed by either the main body 12 or the top cover 14.

The support rod 15 has one end coupled to the pivot 18, and the other end connected to the outer tub 2 by the suspension 30. The suspension 30 connects the support rod 15 and the outer tub 2 and attenuates vibration of the outer tub 2 generated during the operation of the washing machine. The suspension 30 may include a cap 31 fixed to the outer surface of the outer tank 2 and an elastic member 32 elastically deformed according to the vibration of the outer tank 2. The support rod 15 penetrates the cap 31, and one end of the support rod 15 is provided with a base 33 for supporting the elastic member 32.

When the outer tank 2 vibrates, the suspension cap 31 is elevated along the support rod 15 integrally with the outer tank 2. In the process of moving the cap 31 integrally with the outer tub 2, the frictional force acting between the base 33 and the compressed air according to the movement of the cap 31, the inner circumferential surface of the cap 31 and the base 33 A buffering action is performed by interactions such as viscous force acting while exiting through and elasticity / restoration force according to elastic deformation of the elastic member 32.

On the other hand, when the symbols shown in FIG. 1 and the components thereof are further described, the washing machine is connected to an external water source, such as a faucet, to supply water to the outer tank 2 and / or the inner tank 3, the water supply passage 5, and the water supply A water supply valve (6) that regulates the flow path (5), a driving unit (13) providing a driving force for rotating the inner tank (3) and / or a pulsator (4), and a drainage channel (1) that drains the washing water in the outer tank (2) 9), may include a drain valve (8) for controlling the drain passage (9) and / or a drain pump (17) for pumping wash water drained through the drain passage (9) to the outside of the washing machine.

The washing machine according to an embodiment of the present invention includes a horizontal vibration damping unit that reduces vibration of the outer tub 2. The vibration in the vertical direction of the outer tank 2 is mainly damped by the suspension 30 provided at the lower end of the outer tank 2, and the horizontal vibration is mainly damped by the horizontal vibration damping unit.

 The detailed configuration of the horizontal vibration damping unit will be described later with reference to the drawings, and first, terms are defined. The first connecting member and the second connecting member are for connecting the outer tub 2 to a support positioned outside the outer tub 2. The support is sufficient if the first connecting member can be connected, for example, a casing 10 or a support rod 15. The connection to the support is referred to as a first connection member, and the connection to the outer tub 2 is referred to as a second connection member. Hereinafter, the first connecting member is described as being connected to the support rod 15, but is not necessarily limited thereto, and may be connected to the casing 10.

The first connecting member and the second connecting member are moved relative to each other according to the displacement of the outer tub 2. The first connecting member and the second connecting member, relative to each other according to the vibration of the outer tub 2, that is, the displacement of the other with respect to any one of the first connecting member and the second connecting member is generated.

The moving member is provided to be movable along the support rod 15 and is connected to the first connecting member. Since the moving member is moved along the support rod 15, for the up and down vibration of the outer tank 2, the first connecting member and the second connecting member are moved together in the vertical direction.

One of the first connecting member and the second connecting member includes a piston, and the other includes a cylinder into which the piston is inserted. The outer tub connecting portion is defined as connecting one of the piston and the cylinder to the outer tub, and the moving member connecting portion connects the other of the piston and the cylinder to the moving member.

The friction member is disposed on one of the first connecting member and the second connecting member, and provides frictional force between the other. In response to vibration of the outer tank 2, in particular, horizontal vibration, any one of the first connecting member and the second connecting member performs relative motion with respect to the other, so the frictional force at this time is mainly kinetic frictional force.

Figure 2 shows a horizontal vibration damping unit 100 according to an embodiment of the present invention. 3 is a cross-sectional view showing the internal structure of the horizontal vibration damping unit 100 of FIG. 2. 4 is an exploded perspective view of the horizontal vibration damping unit 100 of FIG. 2. Hereinafter, the horizontal vibration damping unit 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

The horizontal vibration damping unit 100 includes a moving member 140, a first connecting member 110, a second connecting member 120, and a friction member 130.

The moving member 140 is provided to be movable along the support rod 15. The moving member 140 is connected to the first connecting member 110, but is connected so that the first connecting member 110 can be rotated relative to the moving member 140. The moving member 140 includes a moving member body portion 141 formed with a through hole 141a through which the support rod 15 passes, and the moving member body portion 141 is recessed from the inner circumferential surface of the through hole 141a. It may include an impregnating portion (141c). A lubricant such as grease may be applied to the impregnating portion 141c so that the moving member 140 can move smoothly along the support rod 15. By reducing the frictional force acting between the moving member 140 and the support rod 15, the occurrence of abnormal noise due to the movement of the moving member 140 is reduced, and wear of the moving member 140 can be prevented.

The impregnating portion 141c may be in any form in which the lower side is blocked, but the upper side is blocked or opened so that the lubricant does not flow downward. When the upper side of the impregnating portion 141c is opened, even after installation of the horizontal vibration damping portion 100 is completed, it provides an advantage of easy application of lubricant for maintenance. The impregnating portion 141c has an inner circumferential surface of the through hole 141a Multiple may be formed along.

The first connecting member 110 may include a piston 116 and a moving member connecting portion 115 connecting the piston 116 to the moving member 140. The piston 116 and the moving member connecting portion 115 may be formed of separate parts to be coupled to each other, or alternatively to be integrally injected.

The moving member connecting portion 115 may be pivotably connected to the moving member 140. To this end, any one of the movable member 140 and the movable member connecting portion 115 may be provided with pivoting shafts 144a and 144b, and the pivoting fasteners 144a and 144b are inserted and coupled to the other. 111h, 112h) may be formed. At the ends of the pivot shafts 144a and 144b, inclined surfaces 145a and 145b for reducing interference with the legs of the moving member connecting portion 115 (see 211 and 212 in FIG. 6) during assembly may be formed.

Hereinafter, a pair of pivot shafts 144a and 144b protrude from both sides of the moving member body portion 141, and a pair of pivot shafts 144a and 144b are respectively inserted into the movement member connecting portion 115. It will be described that the shaft fasteners (111h, 112h) are formed.

The second connecting member 120 includes a cylinder 122 that moves with respect to the piston 116 as the outer tank 2 vibrates, and an outer tank connecting portion 121 that connects the cylinder 122 with the outer tank 2. can do. The piston 116 of the first connecting member 110 is inserted into the cylinder 122. At this time, the outer circumferential surface of the piston 116 and the inner circumferential surface of the cylinder 122 may be in surface contact with each other. In this case, when the piston 116 and the cylinder 122 move relative to each other, a predetermined frictional force is applied between them.

The outer tub connecting portion 121 may be connected to rotate with respect to the outer tub 2. The rotation of the outer tub connecting portion 121 may be substantially centered on a vertical axis. The outer tub connecting portion 121 may be formed with a fastener 121h into which a fastening member for connection with the outer tub 2 is inserted.

The connecting member fastening part 20 is fastened with the second connecting member 120 so that the second connecting member 120 can be rotated relative to the outer tank 2. In more detail, the connecting member fastening portion 20 may include a connecting member supporting plate 21 supporting the outer tub connecting portion 121 and a connecting member supporting plate 22 facing the connecting portion supporting plate 21. The connection member support plate 21 and the fastening member support plate 22 may have fasteners 21h and 22h through which the fastening member passes, respectively.

The outer tub connecting portion 121 may be pivotably fastened to the connecting member fastening portion 20 by fastening members such as pins, screws, and bolts. Hereinafter, the fastening member is described as being a pin 41, but is not limited thereto.

The pin 41 passes through the fastener 21h of the connecting portion support plate 21, the fastener 121h of the outer tub connecting portion 121, and the fastener 22h of the fastening member support plate 22. The bushing 43 and the elastic member 42 may be further provided, in this case, the fastener 21h of the connection support plate 21, the fastener 121h of the outer tub connection 121, the fastening member support plate 22 After inserting the elastic member 42 in the fastener 22h of the, the bushing 43 is inserted into the elastic member 42 again, and the pin 44 is inserted into the bushing 43. The elastic member 42 is made of a material having some elasticity, such as synthetic or natural rubber. There is an effect of inducing a smooth turning operation of the second connecting member 120 with respect to the outer tank 2, reducing the occurrence of abnormal noise, and improving the assembly performance.

Between the connection portion support plate 21 and the fastening member support plate 22 may be connected by a connection plate 23, in this case, the connection plate 23 is fastened to one side of the connection portion support plate 21, the same side as the one side One side of the member support plate 22 is connected. Therefore, between the connecting portion support plate 21 and the fastening member support plate 22, one side is blocked by the connecting plate 23, but the other side forms an opening so that the second connecting member 120 can be smoothly rotated.

Meanwhile, at least one rib (25a, 25b) connecting the fastening member support plate 22 and the outer tub (2) for strength reinforcement, at least one rib (24a) connecting the connecting portion support plate 21 and the outer tub (2) 24b) and / or at least one rib 26a, 26b connecting the connecting plate 23 and the outer tub 2 may be formed.

The connecting member fastening portion 20 is formed separately from the outer tub 2 and may be combined or molded with each other by fastening members such as screws, bolts, and nuts, or alternatively, may be integrally molded with the outer tub 2.

The friction member 130 is fixed in the cylinder 122, and provides frictional force between the piston 116. The friction member 130 may be formed in a tubular form so that the piston 116 can pass.

The cylinder 122 includes a friction member receiving groove 123 that provides a space in which the friction member 130 is accommodated. The material of the friction member 130 may be made of a fibrous material such as felt, or an elastic material such as rubber or synthetic resin.

On the other hand, one side of the friction member receiving groove 123 forms a step 123a with the inner circumferential surface of the cylinder 122 so that the friction member 130 does not move in the inner direction of the cylinder 122, but the other side has a friction member 130 It can be opened for installation, in this case, the friction member 130 may be further provided with a cylinder cover 150 to prevent the separation from the cylinder 122. The cylinder cover 150 is opened so that the piston 116 can pass therethrough, and includes an outer ring 151 and an inner ring 152 having different outer diameters.

The cylinder cover 150 may be formed by injecting synthetic resin. In this case, the outer diameter of the outer ring 151 is substantially the same as the inner diameter of the cylinder 122, and separation is prevented by the outer ring 151 being pressed into the cylinder 122.

The outer diameter of the inner ring 152 is smaller than the outer diameter of the outer ring 151, but larger than the outer diameter of the piston 116. Movement of the friction member 130 toward the outside by the inner ring 152 is restrained. Therefore, even if the cylinder 122 moves as the outer tank 2 vibrates, the friction member 130 is prevented from being detached from the cylinder 122.

Meanwhile, the cylinder cover 150 may include a coupling protrusion 154 that protrudes more radially outward than the inner circumferential surface of the cylinder 122. The engaging projection 154 may protrude from any of the outer ring 151 and the inner ring 152, and the engaging projection 154 along the longitudinal direction from the end of the cylinder 122, into which the piston 116 is inserted. ) May be formed an insertion slot (not shown) is inserted. The width of the insertion slot is substantially the same as the width of the engaging projection 154. Therefore, the engaging projection 154 is pressed into the insertion slot to maintain the bonding force between each other over a certain level, as well as to prevent the rotation of the cylinder cover 150.

A plurality of support ribs 153 spaced apart from each other may be formed along the outer circumference of the inner ring 152. The support rib 153 is preferably in close contact with the inner peripheral surface of the cylinder 122.

5 shows another embodiment of the moving member. 6 is a cross-sectional view showing a coupling process of the moving member connecting portion and the moving member of FIG. 5 according to another embodiment of the present invention. 7 shows that the moving member 240 of FIG. 5 is fixed to the pivot 18. 8 is a longitudinal sectional view of the moving member 240 of FIG. 5.

5 to 8, the moving member 240 according to another embodiment of the present invention includes a moving member body portion 241 having a through hole 241a through which the support rod 15 penetrates. The moving member body portion 241 may include an impregnated portion 241c formed recessed from the inner circumferential surface 241d of the through hole 241a. A plurality of impregnation portions 241c may be formed along the circumferential direction. A lubricant such as grease may be applied to the impregnating portion 241c so that the moving member 240 can be smoothly moved along the support rod 15. By reducing the frictional force acting between the moving member 240 and the support rod 15, the occurrence of abnormal noise due to the movement of the moving member 240 is reduced, and wear of the moving member 240 can be prevented.

The impregnating portion 241c is blocked from the lower side of the lubricant so that the lower side is clogged, but the upper side may be in any form blocked or opened. When the upper side of the impregnating portion 241c is opened, lubricant application for maintenance provides an advantage.

Referring to FIG. 6, the moving member connecting portion 215 according to the present embodiment may be pivotably connected to the moving member 240. To this end, any one of the moving member 240 and the moving member connecting portion 215 may be provided with pivoting shafts 244a and 244b, and the pivoting fittings 244a and 244b in which the pivoting shafts 244a and 244b are inserted and coupled to the other ( 211h, 212h) may be formed.

Hereinafter, a pair of pivot shafts 244a and 244b protrude from both sides of the movable member body portion 241, and a pair of pivot shafts 244a and 244b respectively inserted into the movement member connecting portion 215 It will be described that the shaft fasteners 211h and 212h are formed.

The moving member connecting portion 215 may include a pair of legs 211 and 212 facing each other with the moving member 240 interposed therebetween, and shaft fasteners 211h to each of the legs 211 and 212, 212h) is formed.

Between the legs 211, 212 are connected by a leg connecting portion 213, the portion where the legs 211, 212 are connected to the leg connecting portion 213 is convex curved surface in a direction in which the legs 211, 212 are separated from each other. Parts 214a and 214b are formed.

At the ends of the pivoting shafts 244a and 244b, when assembling the moving member connecting portion 215 and the limiting member 240, the pivoting shafts 244a and 244b are smoothly inserted into the shaft fasteners 211h and 212h. The first inclined surfaces 245a and 245b may be formed, and the second inclined surfaces 211c corresponding to the first inclined surfaces 244a and 244b may also be formed at ends of the legs 211 and 212 in contact with the first inclined surfaces 245a and 245b. 212c) may be formed.

 6 (a), when the second inclined surfaces 211c and 212c are in contact with the first inclined surfaces 245a and 245b, pushing the member connecting portion 215 by applying force, the second inclined surfaces 211c and 212c While maintaining contact with the first inclined surfaces 245a and 245b, a gap between the pair of legs 211 and 212 opens, and the second inclined surfaces 211c and 212c ride completely on the first inclined surfaces 245a and 245b After being passed, the pivot shafts 244a and 244b are inserted into the shaft fasteners 211h and 212h (see Fig. 6 (b)).

However, while the second inclined surfaces 211c and 212c are moved along the first inclined surfaces 245a and 245b, the legs 211 and 212 are opened, and the pivot shafts 244a and 244b are shaft fasteners 211h , 212h), it must be returned to its original position after being inserted into it, but since the moving member connecting portion 215 is very rigid and is not formed of a material that is not deformed at all, some deformation is made, so that the opened legs (211, 212) has some degree of resilience resulting from the properties of the material itself. However, in some cases, since the plastic deformation may be performed in the process of opening the legs 211 and 212, the legs 211 and 212 are connected to the leg so as to provide a greater resilience by strengthening resistance to external force. Between 213, curved portions 214a and 214b may be formed. Deformation and restoration of the legs 211 and 212 according to a change in curvature of the curved surfaces 214a and 214b may be performed smoothly while maintaining proper elasticity.

On the other hand, the manufacturing process of the washing machine goes through several steps in which various parts are assembled one after the other, and these processes insert the moving member 240 through the free end of the support rod 15 where the suspension 30 is not yet assembled. Then, it moves to the next process in this state and undergoes a process of assembling the moving member 240 and the moving member connecting portion 215 or the support rod 15 and the suspension 30.

At this time, during the process of moving to the next process, since one end of the support rod 15 is a free end where the suspension 30 has not yet been assembled, a problem that the moving member 240 is detached from the support rod 15 may occur. You can. Therefore, it is necessary to devise a method for temporarily fixing the moving member 240, and in this embodiment, a method for fixing the moving member 240 to the pivot 18 is proposed.

In this regard, the moving member 240 includes a pivot engaging portion for fixing the pivot 18 with the neck 18a. More specifically, the pivot coupling portion may include at least one fixing protrusion 242a, 242b, 243a, 243b extending upward or downward from the moving member body portion 241. When the moving member 240 is installed, one end of the support rod 15 may be inserted into either opening of both sides of the through hole 241a formed in the moving member 240. Therefore, the fixed protrusions 242a, 242b, 243a, and 243b are formed in both the upward and downward directions from the moving member body portion 241 so that the moving member 240 can be coupled with the neck 18a in any direction. It is desirable to be. That is, the fixing protrusions 242a, 242b, 243a, and 243b may include first fixing protrusions and second fixing protrusions formed to face each other, and in addition, as shown in FIG. 5, a third formed to face each other The fixed protrusion 242a and the fourth fixed protrusion 242b may be further included. The neck 18a is fitted between the pair of fixing protrusions facing each other. In the state in which the moving member 240 is fixed to the pivot 18, the inner circumferential surfaces of the fixing protrusions facing each other contact the outer circumferential surface of the neck 18a.

In an embodiment, it is assumed that the neck 18a is fitted between the first fixing protrusion 242a and the second fixing protrusion 242b, and the inner circumferential surface 242a of the fixing protrusions 242a and 242b is centered at the center of the through hole 241a. i), if the distance to 242b (i) is defined as the inner radius of the fixed projection, it is preferable that the inner radius of the fixed projection is substantially equal to or smaller than the outer circumferential radius of the neck 18a. This structure provides a certain level of grip force so that the neck 18a can be retained without being separated between the first fixing protrusion 242a and the second fixing protrusion 242b. When the moving member 240 is fitted to the neck 18a, the first fixing protrusion 242a and the second fixing protrusion 242b may be opened in a radially outer direction, that is, in a direction away from each other, the first fixing protrusion ( There is a gap between 242a) and the second fixing protrusion 242b. In the state where the first fixing protrusion 242a and the second fixing protrusion 242b are separated from each other, a certain level of elastic force is provided due to the characteristics of the material (for example, synthetic resin) constituting the moving member 240, and thus moves. The member 240 can be fixed to the neck 18a more reliably.

Meanwhile, according to an embodiment, the pivot coupling portion may be formed of a ring or a tubular fixing protrusion. In this case, it is preferable that the inner diameter of the fixing protrusion is substantially the same as the outer diameter of the neck 18a so that it can be forcibly fitted into the neck 18a.

The movable member body portion 241 may communicate with the through hole 241a, but may have a pivot insertion hole 241b having a larger diameter than the through hole 241a, and the neck 18a may be inserted into the pivot insertion hole 241b. At least some are inserted.

The moving member 240 may include a handle 248. The handle 248 may protrude from any one of the moving member body portion 241 and the fixing protrusions 242a, 242b, 243a, and 243b.

9 is a perspective view showing a horizontal vibration damping unit 300 according to another embodiment of the present invention. 10 is an exploded perspective view of the horizontal vibration damping unit 300 of FIG. 9. 11 is a cross-sectional view showing a structure in which the movement of the cylinder 322 with respect to the piston 315 is restricted by the limiting member 60 in the horizontal vibration damping unit 300 of FIG. 9. 12 is a perspective view showing the limiting member 60 shown in FIGS. 9 to 12. 13 is a partially enlarged view of FIG. 9. 14 is a cross-sectional view showing a coupling structure between the limiting member 60 and the cylinder 322 in the horizontal vibration damping unit 300 of FIG. 9. 15 is a view of the first connecting member 310 of FIG. 9 in the longitudinal direction. Hereinafter, the same reference numerals are given to the same members as those in the above-described configuration, and descriptions thereof will be made according to the foregoing.

9 to 15, the horizontal vibration damping part 300 includes a first connecting member 310, a horizontal displacement part, and a friction member 130. The horizontal displacement part connects the first connecting member 310 with the outer tub 2 and is moved along the longitudinal or longitudinal direction of the first connecting member 310 by vibration of the outer tub 2, but the shifted displacement is It has a displacement with respect to the first connecting member 310 corresponding to the horizontal component distance. The horizontal displacement part may include a second connecting member 320 and a limiting member 60.

When the displacement of the first connecting member 310 reaches a predetermined amount, the horizontal displacement part may include a locking protrusion that limits displacement by being caught by the first connecting member 310, and the locking protrusion is a restriction member 60 It can be formed in (see 62a, 62b).

The first connecting member 310 may include a piston 316 and a moving member connecting portion 315 connecting the piston 316 to the moving member 240. The piston 316 and the moving member connecting portion 315 may be formed of separate parts and coupled to each other, or alternatively may be integrally injected.

The moving member connecting portion 315 is only different in shape from the shaft fasteners 311h and 312h when compared with the moving member connecting portion 215 according to the above-described embodiment, and the other components are the same. The movable member connecting portion 315 is a long hole-shaped shaft fastener 311h so that the first connecting member 310 can be moved while the pivot shafts 244a and 244b are inserted in the shaft fasteners 311h and 312h. , 312h). That is, as illustrated in FIG. 9, even when the pivoting shafts 244a and 244b are positioned in the shaft fasteners 311h and 312h, the first connecting member 310 may have a displacement of length L.

The friction member 130 is provided at any one of the first connecting member 310 and the horizontal displacement portion to provide a friction force between the other. Hereinafter, the friction member 130 is described as being fixed to the piston 316, but is not necessarily limited thereto.

The first transverse rib 317a and the second transverse rib 318a may protrude from the outer circumferential surface of the piston 316. The first transverse rib 317a and the second transverse rib 318a extend transversely to the longitudinal direction of the piston 316.

The second transverse rib 318a is formed at a predetermined distance from the first transverse rib 317a along the longitudinal direction of the piston 316, and the first transverse rib 317a and the second transverse rib ( The friction member 130 is disposed between 318a.

The limiting member 60 limits the relative motion between the piston 316 and the cylinder 322. For example, considering that the movement of the cylinder 322 mainly occurs as the outer tub 2 vibrates, movement or displacement of the cylinder 322 relative to the piston 316 is limited.

The limiting member 60 is coupled to the cylinder 322, so that the position relative to the cylinder 322 is fixed, and the displacement of the cylinder 322 relative to the piston 316 in a state fixed to the cylinder 322 is more than a certain amount In this case, the limiting member 60 is constrained by the piston 316, thereby limiting displacement between the piston 316 and the cylinder 322.

The restricting member 60 may include a pipe portion 61a having a tubular shape so that it can be extrapolated to the cylinder 322, and the locking protrusions 62a and 62b protruding inward along the radial direction from the pipe portion 61a. have.

On the other hand, the transverse ribs 317a, 318a are formed in some section of the circumference on the outer circumferential surface of the piston 316. The reason for this is to form a longitudinal passage through which the locking protrusions 62a and 62b can pass in the longitudinal direction when the limiting member 60 to be described later is fitted along the longitudinal direction of the piston 316. . That is, when the limiting member 60 is fitted through the end of the piston 316, the locking projections 62a and 62b in turn must pass through the second transverse rib 318a and the first transverse rib 317a. , At this time, the movement path of the locking protrusions 62a and 62b is made through a section in which the transverse ribs 317a and 318a are not formed.

A plurality of first transverse ribs 317a and 317b may be formed along the circumferential direction on the outer circumferential surface of the piston 316, and the locking projections of the limiting member 60 may be formed between the first transverse ribs 317a and 317b. There is a gap through which 62a, 62b) passes. That is, the first transverse ribs 317a and 317b do not extend in the form of one complete circle along the outer circumferential surface of the piston 316, but are limitedly formed in some sections of each circumference, and adjacent first transverse direction There is a predetermined gap between the ribs 317a and 317b. Particularly, the first transverse ribs 317a and 317b prevent the restriction member 60 from being separated from the piston 316 by engaging the locking protrusions 62a and 62b of the restriction member 60 installed on the piston 316. The first transverse ribs 317a and 317b will hereinafter also be referred to as anti-separation ribs.

Likewise, a plurality of second transverse ribs 318a and 318b may be formed along the circumferential direction on the outer circumferential surface of the piston 316, and between the second transverse ribs 318a and 318b, the restriction member 60 There is a gap through which the locking projections 62a and 62b pass. That is, the second transverse ribs 318a and 318b do not extend in the form of one complete circle along the outer circumferential surface of the piston 316, but are limitedly formed in some sections and adjacent second transverse ribs ( There is a predetermined gap between 318a and 318b).

Looking at the operation of inserting the limiting member 60 in the piston 316, the locking projections 62a, 62b are spaced between the second transverse ribs 318a, 318b, and the first transverse ribs ( 318a, 318b). That is, the gap existing between the second transverse ribs 318a, 318b is the entrance into which the locking projections 62a, 62b are inserted, and the gap existing between the first transverse ribs 318a, 318b is It becomes an exit where insertion of the locking projections 62a and 62b is completed. Hereinafter, the longitudinal passage 316h through which the locking protrusion moves through the piston 316 in the longitudinal direction, that is, in the longitudinal direction, is defined as a path where one end is the inlet and the other end is the outlet. In order to prevent smooth extraction from the mold during injection of the first connection member 310, that is, under cut, the inlet and the outlet overlap each other when viewed in the longitudinal direction (takeout direction) of the piston 316 It is preferably located in the same section where it is made.

Meanwhile, a plurality of longitudinal ribs 319a, 319b, 319c, and 319d may protrude along the longitudinal direction of the piston 316. Among the plurality of ribs 319a, 319b, 319c, and 319d, extending from the anti-separation ribs 317a, 317b toward the leg connection portion 313 is limited in the state where the limiting member 60 is installed on the piston 316 Since the circumferential movement of the locking protrusions 62a and 62b due to the rotation of the member 60 is restricted, it will hereinafter be referred to as a rotation-restricting rib. At least one pair of the rotation-limiting ribs may extend from any anti-separation ribs 317a. In this embodiment, a pair of rotation limiting ribs 319a and 319c spaced apart at predetermined intervals along the circumferential direction from each of the anti-separation ribs 317a and 317b are formed.

The rotation limiting ribs 319a and 319b extend along the longitudinal direction of the piston 316, that is, in the longitudinal direction, but do not extend in all sections between the separation preventing ribs 317a and 317b and the leg connecting portion 313, but the obstacle Groups 62a, 62b extend in some sections to provide at least one gap through which circumferentially can pass.

In this embodiment, one end of the rotation limiting ribs 319a and 319b provides a circumferential passage 319h by forming a predetermined distance from the leg connecting portion 313. A first area S1 in which the locking protrusions 62a and 62b are located after passing through the longitudinal passages 316h based on the rotation limiting ribs 319a and 319b, and a pair of rotational limiting ribs 319a and 319b ) If the movement of the locking protrusions 62a and 62b between the second regions S2 defined between the two can be allowed through a predetermined passage through which the rotation-restricting rib is not formed, the configuration, number, or shape of the rotation-restricting rib is not limited. . P in FIG. 15 indicates a movement path of the locking protrusions 62a and 62b in the installation process of the limiting member 60, the first connecting member 310 and the horizontal displacement part (or limiting member 60) When assembling, the locking protrusions 62a and 62b are moved along the longitudinal direction through a section in which the anti-separation ribs 317a and 317b are not formed, and then pass through a section in which the rotation-restricting ribs 319a and 319b are not formed. It shows that it is located between the pair of rotation limit ribs (319a, 319b).

On the other hand, the longitudinal ribs 319b, not described, extend from the second transverse ribs 318a, 318b toward the end of the piston 316.

When the limiting member 60 is inserted through the end of the piston 316, the locking protrusions 62a and 62b pass through the longitudinal passage 316h and approach the leg connecting portion 313, and in this state (the locking protrusion 62a , 62b) when the restricting member 60 is rotated in the first region S1, the locking projections 62a, 62b are moved to the second region S2 through the rotational circumferential passage 319h. . In the second region S2, movement along the longitudinal direction of the piston 316 of the limiting member 60 is limited by being caught by the separation preventing rib 317a, so that the limiting member 60 is separated from the piston 316 It is prevented. In particular, since the movement in the circumferential direction of the locking projections 62a and 62b in the second region S2 is limited between the pair of rotation limiting ribs 319a and 319b, the locking projections 62a and 62b are intentionally circumferential. The limiting member 60 is not separated from the piston 316 unless it is passed through the direction passage 319h.

The engaging projection 323 may protrude from the outer circumferential surface of the cylinder 322, and the engaging projection fastener 61h that is engaged with the engaging projection 323 may be formed on the limiting member 60. The engaging projection fastener 61h may be formed in the tube portion 61a. When the limiting member 60 is installed in the cylinder 322, the limiting member 60 is fixed by inserting the engaging projection 323 into the engaging protrusion fastener 61h of the limiting member 60.

The engaging protrusion 323 may include a first inclined surface 323a whose height gradually decreases as it goes in a direction opposite to the direction in which the limiting member 60 is installed (in the arrow direction of reference numeral 66 in FIG. 10). In addition, a movement guide groove 63 for guiding movement for installation of the coupling protrusion 323 may be formed at one end of the restriction member 60, and the movement guide groove 63 may include a first of the coupling protrusion 323. A second inclined surface 63a in contact with the inclined surface 323a may be formed. When the limiting member 60 is installed, the second inclined surface 63a is moved on the first inclined surface 323a. Interference is reduced because the first inclined surface 323a and the second inclined surface 63a have an inclined structure, and damage to the coupling protrusion 323 or the limiting member 60 due to stress concentration during the assembly process of the limiting member 60 This can be prevented.

On the other hand, when the engaging projection 323 is completely inserted into the engaging projection fastener 61h, the engaging projection 232b formed substantially perpendicular to the outer circumferential surface of the cylinder 322 opposite to the first inclined surface 323a is engaged. It is hung around the fastener 61h. Therefore, separation between the limiting member 60 and the cylinder 323 can be prevented.

The installation direction guide sign 66 indicates the installation direction of the limiting member 60, and the installation direction is also a moving direction of the engaging projection fastener 61h for fastening with the engaging projection 323.

16 is a perspective view showing that the limiting member 160 according to another embodiment of the present invention is assembled to the first connecting member 310 of FIG. 15. 17 is a perspective view showing the limiting member 160 shown in FIG. 16. 16 to 17, a point in which the limiting member 160 according to the present embodiment differs from the limiting member 60 according to the above-described embodiment is that there is a slit 161e cut along the longitudinal direction. will be.

The slit 161e extends along the longitudinal direction of the limiting member 160, but not all of the limiting member 160 is cut from one end to the other end, and partially cut (h1 in FIG. 17 indicates that the slit 161e) It is the length.)

The limiting member 160 includes a plurality of side wall portions 161a, 161b, 161c, and 161d, which are divided by slits 161e. During the process in which the engaging projection 323 is inserted into the engaging projection fastener 161h, both side wall portions 161b and 161c of the slit 161e are opened to some extent, so that the engaging projection 323 engages the engaging projection fastener ( 161h). In addition, in the process of moving the piston 316 according to the vibration of the outer tub 2, stress is concentrated on the limiting member 160 by interference generated between the separation preventing ribs 317a and 317b of the piston 316. However, since the sidewall portions 161b and 161c on both sides are elastically deformed due to the slit 161e, stress is dispersed and durability is improved.

The engaging projection fastening portion 161h may be formed on at least one of the side wall portions 161a, 161b, 161c, and 161d, and a moving guide groove may be provided at an end of the side wall portions 161a, 161c having the engaging projection fastener 161h. 163 is formed, and a second inclined surface 163c may be formed in the movement guide groove 163.

The engaging projection fastener 161h and the second inclined surface 163c have substantially the same configuration as the engaging projection fastener 61h and the second inclined surface 63c according to the above-described embodiment, and the description thereof is as described above. And omit.

In addition, as shown in Figure 16, the limiting member 160 has engaging projections 162a, 162b, which are substantially engaging projections 62a, 62b in the limiting member 60 according to the above-described embodiment. It is the same configuration as.

18 is a perspective view showing a limiting member 260 according to another embodiment of the present invention. Referring to FIG. 18, the restricting member 260 according to the present embodiment has a slit 261e, side wall portions 261a, 261b, 261c, 261d, a moving guide groove 263, and a second inclined surface 263c. , Although not shown and has a coupling protrusion, it is common with the restriction member 160 according to the above-described embodiment, but a plurality of coupling protrusion fasteners 261h1 along the longitudinal direction of at least one side wall portion 261c, 261h2) is formed, and accordingly, the side wall portions 261a, 261b, 261c, 261d or the length of the slit 261e is also increased (h2> h1).

The reason for forming the plurality of engaging projection fasteners 261h1 and 261h2 on the side wall portions 261a, 261b, 261c and 261d is, first, the engaging projection 323 among the plurality of engaging projection fasteners 261h1 and 261h2 This is to control the position of the locking projection by selectively combining with any one. The displacement of the cylinder 322 may also be limited differently depending on the position of the locking projection. For reference, the locking projection is substantially the same as the locking projections 62a, 162a, etc. in the above-described embodiment shown in FIGS.

Second, it is to prevent cracks from being generated due to concentration of stress due to deformation of the side wall portions 261a, 261b, 261c, and 261d. There is an effect that the stress applied to the side wall portions 261a, 261b, 261c, 261d is injected through the edges of the engaging projection fasteners 261h1, 261h2. The engaging projection fasteners 261h1 and 261h2 preferably include a curved portion having a predetermined curvature.

19 is a perspective view showing a limiting member 360 according to another embodiment of the present invention. Referring to Figure 19, the limiting member 360 according to the present embodiment has a slit 361e, side wall portions 361a, 361b, 361c, 361d, a moving guide groove 363, and a second inclined surface 363c. , Although not shown and has a coupling protrusion, it is common to the restriction member 260 according to the above-described embodiment, but is longer than the length occupied by the coupling protrusion fastener 361h in the longitudinal direction of the side wall portion 361c. There is a marginal part with length. That is, in FIG. 19, the length h2 of the slit 361e is two times or more of the longitudinal length of the engaging projection fastener 361h.

At this time, the total length of the side wall portion 361c and the length h2 of the slit 361e are determined within a range in which the stress applied to the side wall portion 361c is smaller than the yield stress at which plastic deformation of the material starts to occur. . That is, the limiting member 360 according to the present embodiment is suitable when the material does not crack even if a plurality of engaging projection fasteners are not formed in the side wall portion 361c.

20 is a perspective view showing a horizontal vibration damping unit according to another embodiment of the present invention. Referring to FIG. 20, the horizontal vibration damping unit includes a first connecting member 310 ', a second connecting member 320, a moving member 240, a limiting member 360, and a first connecting member 310', although not shown. It includes a friction member 130 is fixed to. The same reference numerals are given to the same components as those in the above-described embodiment, and descriptions of these components are as described above, and detailed descriptions are omitted.

However, the first connecting member 310 'is different from the first connecting member 310 according to the above-described embodiment in that the fasteners 311h' and 312h 'formed in the moving member connecting portion are not long holes. That is, even if vibration of the outer tub 2 occurs, there is no displacement of the fasteners 311h 'and 312h' with respect to the swing shafts 244a and 244b, and thus the swing shafts 244a and 244b and the fastener 311h ', 312h') There is no impact sound due to the collision between the effects of improving quietness.

21 shows a horizontal vibration damping unit 500 according to another embodiment of the present invention. 22 shows the limiting member and ring of FIG.

The same reference numerals are given to the same configuration as the above-described embodiments, and the description thereof will be made as described above, and detailed description thereof will be omitted.

The horizontal vibration damping unit 500 according to the present embodiment includes a limiting member 460 and a ring 470. The limiting member 460 is a structure in which a ring fastening groove 365 is added to the limiting member 360 shown in FIG. 19, and other configurations are the same. Therefore, hereinafter, the ring fastening groove 365 will be mainly described, and other configurations will be described with reference to FIG. 19 and the foregoing description.

The limiting member 460 has a shape in which slits 361e are formed between the side wall portions 361a, 361b, 361c, and 361d. Since the first connecting member 310 ′ and the second connecting member 320 are interconnected via the limiting member 460, the moving member connecting portion moved along the moving member 240 when the outer tub 2 vibrates Forces are applied in various directions by the motion of 315 and the relative motion between the piston 316 and the cylinder 322, and in this process, the side wall portions 361a, 361b, 361c on both sides based on the slit 361e. , 361d). A certain degree of deformation between the side wall portions 361a, 361b, 361c, 361d serves to disperse or cushion the force applied to the limiting member 460 by providing a predetermined elastic force, thereby improving durability or stability, but the side wall portions ( Excessive opening between 361a, 362b, 361c, 361d) may cause cracking or plastic deformation of the material, and may cause serious problems when the limiting member 460 is a synthetic resin material formed by injection or the like. The ring 470 is for preventing this problem from occurring, and is fitted to the limiting member 460. The ring 470 may be made of an elastic material that provides a predetermined elasticity, such as natural or synthetic rubber.

The ring fastening groove 365 may be formed in the limiting member 460 along the circumferential direction so that the ring 470 can be fixedly fitted to the limiting member 460. The ring fastening groove 365 may be provided between a pair of groove forming protrusions 366 and 367 protruding from each side wall portion 361a, 361b, 361c, and 361d. The groove forming protrusions 366 and 367 are disposed at a predetermined distance from the first groove forming protrusion 366 extending in the circumferential direction and the first groove forming protrusion 366 in the longitudinal direction of the limiting member 460 It may include a second groove forming projection (367).

Each of the groove forming projections 366 and 367 has groove defining surfaces 366a and 367a that define the ring fastening groove 365, and each of the groove defining surfaces 366a and 367a substantially has side wall portions 361a and 361b. , 361c, 361d).

Further, each of the groove forming projections 366 and 367 has outer surfaces 366b and 367b extending opposite to the groove defining surfaces 366a and 367a, and these outer surfaces 366b and 367b form concave surfaces. .

The groove forming projections 366 and 367 extend in a section other than the section in which the engaging projection fastener 361h and the slit 361e are formed, and thus, the ring fastening groove 365 is engaged with the engaging projection fastener 361h. In the section in which (361e) is formed, it is discontinuous, but extends on one column as a whole.

23 shows a horizontal vibration damping part 600 according to another embodiment of the present invention. 24 is a cross-sectional view of the male vibration damping part 600 illustrated in FIG. 23. 25 is an exploded perspective view of the horizontal vibration damping unit 600 illustrated in FIG. 23.

23 to 25, the horizontal vibration damping part 600 includes a first connecting member 410, a second connecting member 120, a moving member 340, and a second connecting member 120 not shown. It includes a friction member 130 fixed to. The same reference numerals are given to the same components as those in the above-described embodiment, and descriptions of these components are as described above, and detailed descriptions are omitted.

In particular, the horizontal vibration damping part 600 according to the present embodiment is different from the above-described embodiments, and is a coupling structure of the moving member 340 and the moving member connecting portion 415.

More specifically, the moving member 340 includes a moving member body portion 341 having a through hole through which the support rod 15 passes, and a moving member base portion 343 extending outwardly from the moving member body portion 341. And, a plurality of spherical shells 342 extending from the moving member base 343 and having an outer circumferential surface forming a part of a spherical surface.

The spherical shells 342 are connected to each other through the moving member base portion 343, and the opposite side of the portion connected to the moving member base portion 343 is a free end. Therefore, it can be pivoted around the connecting portion with the moving member base portion 343 by an external force applied to the free end. In particular, when the moving member 340 is made of an injection material of a synthetic resin material, the material itself has some or no The swinging motion is made elastic by elasticity.

As shown through the drawings, the spherical shell 342 has a maximum distance from the center (Z-axis) of the support rod 15, and a free end and a portion where the spherical shell 342 is connected to the moving member base 343. It is preferably located between.

The moving member connecting portion 415 is made of a socket surrounding the moving member 340, and the inner circumferential surface 415i contacting the spherical shell 342 of the moving member 340 corresponds to the shape of the spherical shell 342 It is preferably made of a spherical surface.

Meanwhile, the moving member connecting portion 415 may be formed with a pressing surface 415i1 and an insertion support surface 415i2 on the inner circumferential surface 415i contacting the spherical shell 342. Preferably, the pressing surface 415i1 and the insertion support surface 415i2 are alternately formed along the circumferential direction.

The pressing surface 415i1 presses the spherical shell 342 to rotate based on the connection portion with the moving member base 343. Due to the elastic force acting from the spherical shell 342, a strong repulsive force acts between the pressing surface 415i1 and the spherical shell 342.

At least one section of the inner circumferential surface 415i of the moving member connecting portion 415 forms a receiving groove 415r in which the spherical shell 342 is accommodated. A plurality of receiving grooves 415r may be spaced apart along the circumferential direction. The insertion support surface 415i2 is a surface in contact with the outer peripheral surface of the spherical shell 342 among the surfaces forming the receiving groove 415r.

At least one of the plurality of spherical shells 342 is inserted into the receiving groove 415r, and the other at least one is pressed by the pressing surface 415i1. Since the spherical shell 342 is accommodated in the receiving groove 415r, rotation of the Z axis (longitudinal direction of the support rod 15) of the moving member connecting portion 415 with respect to the moving member 340 is limited.

The coupling between the moving member 340 and the moving member connecting portion 415 is based on a ball-socket joint, and the moving member 340 rotates the support rod 15 in an axis (Z axis). It is a kind of ball element (ball element), and the moving member connecting portion 415 connected to the moving member 340 corresponds to a socket element surrounding the ball, and the moving member connecting portion 415 includes all X, Y, and Z axes It is possible to rotate within a predetermined range. However, at least one of the plurality of spherical shells 342 is accommodated in the receiving groove 415r, and the Z-axis rotation of the spherical shells 342 relative to the moving member connecting portion 415 (ie, the support rod 15 is axially Rotation), the Z-axis rotation of the moving member connecting portion 415 is made integral with the rotation of the moving member 340.

The horizontal vibration damping unit 500 according to the present embodiment gives more freedom to the moving member connecting portion 415, so that even if the moving member 340 is moved along the support rod 15, the moving member connecting portion 415 And the moving member 340 to ensure higher stability and reliability.

26 illustrates a horizontal vibration damping unit 700 according to another embodiment of the present invention. 27 is a cross-sectional view of the horizontal vibration damping unit 700 shown in FIG. 26.

26 to 27, the horizontal vibration damping unit 700 includes a first connecting member 410, a second connecting member 320 and a moving member 340. The same reference numerals are given to the same components as those in the above-described embodiment, and descriptions of these components are as described above, and detailed descriptions are omitted.

The horizontal vibration damping part 700 according to this embodiment differs from the above-described embodiment with reference to FIGS. 23 to 25, in that the friction member 130 is fixed to the first connecting member 410. The piston of the first connecting member 410 is substantially the same structure as the piston 316 described with reference to FIGS. 9 to 15, and the specific configuration will be described as described above.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention may be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims, which will be described later, rather than the detailed description, and all the changed or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. Should be interpreted.

Claims (33)

Casing;
An outer tub provided in the casing;
A support rod for hanging the outer tub in the casing;
A first connecting member connected to a support located outside the outer tub;
The first connecting member is connected to the outer tub, and is moved along the longitudinal direction of the first connecting member by vibration of the outer tub, but is displaced with respect to the first connecting member in correspondence to the horizontal component distance of the moved displacement. A horizontal displacement portion having; And
It includes a friction member provided on any one of the first connection member and the horizontal displacement portion to provide a friction force between the other,
The horizontal displacement portion includes a locking projection,
The first connecting member,
And a transverse rib extending a predetermined section transverse to the longitudinal direction,
The displacement of the horizontal displacement portion with respect to the first connecting member,
A laundry treatment device in which the locking projections are restricted by engaging the transverse ribs. According to claim 1,
The first connecting member,
Further comprising a pair of longitudinal ribs extending a predetermined section along the longitudinal direction,
When assembling the first connecting member and the horizontal displacement portion, after the locking projection is moved along the longitudinal direction through a section in which the first transverse rib is not formed, the longitudinal rib passes through a section in which the longitudinal rib is not formed to A laundry treatment machine located between a pair of longitudinal ribs. According to claim 2,
The first connecting member,
Further comprising a second transverse rib spaced in the longitudinal direction relative to the first transverse rib,
The friction member,
A laundry treatment device disposed between the first transverse rib and the second transverse rib. The method of claim 3,
The first connecting member includes a piston,
The horizontal displacement portion includes a cylinder into which the piston is interpolated,
The friction member is a laundry treatment device that provides friction between the inner circumferential surface of the cylinder. The method of claim 4,
The longitudinal rib protrudes from the outer peripheral surface of the piston and extends along the longitudinal direction,
The first transverse rib and the second transverse rib respectively protrude from the outer circumferential surface of the piston and extend along the circumferential direction, extending in a section except for a predetermined longitudinal passage so that the locking protrusions can pass in the longitudinal direction. Laundry treatment equipment. The method of claim 5,
Further comprising a moving member is provided to be movable along the support rod,
The piston is a laundry treatment device connected to the moving member. The method of claim 6,
The first connecting member,
Further comprising a moving member connecting portion pivotally connected to the moving member,
The piston extends from the moving member connection,
Between the longitudinal rib and the moving member connecting portion,
A laundry treatment apparatus having an interval corresponding to a section in which the longitudinal rib is not formed. Casing;
An outer tub provided in the casing;
A support rod for hanging the outer tub in the casing;
A first connecting member connected to a support located outside the outer tub;
The first connecting member is connected to the outer tub, and is moved along the longitudinal direction of the first connecting member according to the vibration of the outer tub, but is displaced with respect to the first connecting member corresponding to the horizontal component distance of the moved displacement A horizontal displacement portion having; And
It includes a friction member provided on any one of the first connection member and the horizontal displacement portion to provide a friction force between the other,
The horizontal displacement portion,
When the displacement of the horizontal displacement portion with respect to the first connecting member reaches a predetermined amount, the laundry treatment apparatus including a locking projection for limiting the displacement by engaging the first connecting member. The method of claim 8,
The first connecting member includes a piston,
The horizontal displacement portion,
A cylinder into which the piston is interpolated; And
A laundry treatment apparatus including a limiting member formed with the locking projection and coupled to the cylinder. The method of claim 9,
The limiting member,
The piston is passed through, and includes a tube portion coupled to the open end of the cylinder is inserted into the piston,
The locking projection,
Laundry processing device protruding from the inner peripheral surface of the tube portion. The method of claim 10,
The engaging projection protrudes from the outer peripheral surface of the cylinder,
A laundry treatment device in which the coupling protrusion fastener into which the coupling protrusion is inserted is formed in the tube portion. The method of claim 11,
The engaging projection,
A laundry treatment apparatus including a first inclined surface whose height is gradually lowered toward the direction of being inserted into the coupling protrusion fastener. The method of claim 12,
The limiting member,
It includes a movement guide groove formed along a path in which the coupling protrusion is inserted into the coupling protrusion fastener from one end of the tube portion,
The moving guide groove,
A laundry treatment apparatus comprising a second inclined surface corresponding to the first inclined surface. The method of claim 10,
The limiting member,
A laundry treatment apparatus including a plurality of slits extending from a point spaced apart from one end of the tube portion to the other end along the longitudinal direction. The method of claim 14,
The tube portion,
And sidewall parts divided by the plurality of slits,
In order to limit the degree to which the side wall portions are opened to each other, a laundry treatment apparatus including a ring fitted to the tube portion. The method of claim 15,
The ring is a laundry treatment device made of an elastic material. The method of claim 15,
The limiting member,
Laundry treatment apparatus including a ring receiving groove extending in the circumferential direction from the outer circumference of the tube portion to accommodate the ring. Casing;
An outer tub provided in the casing;
A support rod for hanging the outer tub in the casing;
A piston connected to any one of the outer casing and the support located outside the outer casing;
A cylinder in which the piston is inserted, connected to the other of the outer shell and the support, and having a displacement with respect to the piston as the outer shell vibrates;
A friction member provided on one of the piston and the cylinder to provide friction between the other; And
A laundry treatment device coupled to the cylinder and including a limiting member to limit displacement of the cylinder with respect to the piston. The method of claim 18,
The limiting member includes a locking projection,
The piston,
And a first transverse rib extending a predetermined section transverse to the longitudinal direction of the piston,
The displacement of the cylinder with respect to the piston is a laundry treatment device that is limited by the locking projection is caught in the transverse rib. The method of claim 19,
The piston,
Further comprising a pair of longitudinal ribs extending a predetermined section along the longitudinal direction,
When assembling the piston and the limiting member, after the locking protrusion is moved along the longitudinal direction through a section in which the first transverse rib is not formed, the longitudinal pair is passed through a section in which the longitudinal rib is not formed to form the pair of species A laundry treatment machine located between directional ribs. The method of claim 20,
The piston,
Further comprising a second transverse rib disposed at a predetermined distance apart in the longitudinal direction with respect to the first transverse rib,
The friction member,
A laundry treatment device disposed between the first transverse rib and the second transverse rib. The method of claim 21,
The friction member,
A laundry treatment machine that provides friction between the inner circumferential surface of the cylinder. The method of claim 21,
The first transverse rib and the second transverse rib respectively protrude from the outer circumferential surface of the piston and extend along the circumferential direction, extending in a section except for a predetermined longitudinal passage so that the locking protrusion can pass in the longitudinal direction. Laundry treatment equipment. The method of claim 23,
Further comprising a moving member is provided to be movable along the support rod,
The piston is a laundry treatment device connected to the moving member. The method of claim 24,
Further comprising a moving member connecting portion for pivotally connecting the piston to the moving member,
Between the longitudinal rib and the moving member connecting portion,
A laundry treatment apparatus having an interval corresponding to a section in which the longitudinal rib is not formed. The method of claim 19,
The limiting member,
The piston is passed through, and includes a tube portion coupled to the open end of the cylinder is inserted into the piston,
The locking projection,
Laundry processing device protruding from the inner peripheral surface of the tube portion. The method of claim 26,
The engaging projection protrudes from the outer peripheral surface of the cylinder,
A laundry treatment device in which the coupling protrusion fastener into which the coupling protrusion is inserted is formed in the tube portion. The method of claim 27,
The engaging projection,
A laundry treatment apparatus including a first inclined surface whose height is gradually lowered toward the direction of being inserted into the coupling protrusion fastener. The method of claim 28,
The limiting member,
It includes a movement guide groove formed along a path in which the coupling protrusion is inserted into the coupling protrusion fastener from one end of the tube portion,
The moving guide groove,
A laundry treatment apparatus comprising a second inclined surface corresponding to the first inclined surface. The method of claim 26,
The limiting member,
A laundry treatment apparatus including a plurality of slits extending from a point spaced apart from one end of the tube portion to the other end along the longitudinal direction. The method of claim 30,
The tube portion,
And sidewall parts divided by the plurality of slits,
In order to limit the degree to which the side wall portions are opened to each other, a laundry treatment apparatus including a ring fitted to the tube portion. The method of claim 31,
The ring is a laundry treatment device made of an elastic material. The method of claim 31,
The limiting member,
Laundry treatment apparatus including a ring receiving groove extending in the circumferential direction from the outer circumference of the tube portion to accommodate the ring.

Images