WO2014178527A1

WO2014178527A1 - Built-in damper for furniture hinge with inherent pressure adjustment function

Info

Publication number: WO2014178527A1
Application number: PCT/KR2014/001689
Authority: WO
Inventors: 표철수
Original assignee: 삼성정밀공업 주식회사
Priority date: 2013-05-03
Filing date: 2014-02-28
Publication date: 2014-11-06
Also published as: KR101290252B1

Abstract

The present invention relates to a built-in damper arranged in a furniture hinge for absorbing the opening/closing load of a furniture door, and the built-in damper includes: a first fluid groove (23-2) formed at the front of a cutoff valve (23) for making a flow path; a second fluid groove (23-4) formed at the back of the cutoff valve (23) for making a flow path; a fluid passage hole (23-6) for connecting the first fluid groove (23-2) and the second fluid groove (23-4); and a check valve (29) for guiding a fluid to the first fluid groove (23-2), so that the flow path of the built-in damper is designed so as to adapt to the opening/closing load of the furniture door, thus enabling the furniture door to opened and closed always at a preset speed regardless of the load applied from the furniture door and enhancing the reliability.

Description

Built-in damper for furniture hinge with self pressure control

The present invention relates to a built-in damper that is embedded in the furniture hinge to absorb the opening and closing load of the furniture door, in particular to the self-adjusting to improve the damping performance by configuring the built-in damper in a variable type corresponding to the opening and closing load of the furniture door It is an object to provide a built-in damper for a furniture hinge having a function.

In general, the furniture hinge is a steel structure that is installed on the sidewalls of various furniture such as a cabinet, a wardrobe or a sink, and is used as an opening and closing means of the furniture door, and the furniture hinge is a shock noise or various kinds of contact generated during the opening and closing of the furniture door. The built-in damper which absorbs and buffers resistance etc. is mounted.

For example, as shown in Figure 1, the furniture hinge 10, the body portion 14 is coupled to the furniture side wall through the fixing plate 12, the rotating portion 16 is coupled to the furniture door, and the body portion ( 14 and a connecting shaft portion 18 hinged to the rotating portion 16, in particular the body portion 14 is accommodated in the built-in damper 20 for cushioning the furniture door.

As shown in FIG. 2, the built-in damper 20 is coupled to a cylinder 21, a rod 22 accommodated in the cylinder 21, and a circumferential surface of the rod 22 to be reciprocated. It is composed of a shut-off valve 23 to form a, and the O-ring 24 is coupled to the shut-off valve 23 to seal the gap with the cylinder (21).

In addition, the rod 22 is supported through the valve plate 25 and the seal plate 28 in the state accommodated in the cylinder 21.

In addition, the built-in damper 20 is sealed through the end cap 26 and the seal 27 are sequentially coupled to the opening of the cylinder 21.

Accordingly, when the furniture door is opened and closed while the built-in damper 20 is mounted, the rod 22 is pulled or returned in the opening and closing process of the furniture door, and the fluid accommodated in the cylinder 21 is in the process. Since it passes through the gap of the shut-off valve 23, the built-in damper 20 is to perform a damping action.

By the way, the built-in damper 20 is not a variable according to the load generated in the opening and closing process of the furniture door, the same corresponding pressure always acts, there is no problem when the furniture door is a standard specification, the furniture door If the small or light operation is too late and if the furniture door is large or heavy, because the operation is too fast due to the capacity limit, the built-in damper 20 does not have a problem of smoothly performing the damping role in accordance with the specifications of the furniture door there was.

Accordingly, the present invention has been made in order to solve the various problems as described above, and has a self-pressure control function to improve the damping performance by configuring the built-in damper to the corresponding variable type according to the opening and closing load of the furniture door The purpose is to provide a built-in damper for the furniture hinge.

The present invention for achieving the above object; A built-in damper for a furniture hinge having a self-pressure control function for cushioning external loads generated during opening and closing of a furniture door, the built-in damper comprising a cylinder for forming an exterior of the built-in damper and accommodating a fluid; A rod reciprocating in the opening and closing process of the furniture door, a shutoff valve coupled to a circumferential surface of the rod to form a flow path, and a valve plate riveted to an outer circumferential surface of the shutoff valve, formed on the front of the shutoff valve A first fluid groove forming a flow path; A second fluid groove formed on a rear surface of the shutoff valve to form a flow path between the valve plate and the valve plate; A fluid passage hole passing through the shutoff valve and interconnecting the first fluid groove and the second fluid groove; And a check valve mounted to the rod to guide the fluid flow in the cylinder to the first fluid groove.

As described above, the present invention includes at least the following effects.

First, by configuring the flow path of the built-in damper to the variable type corresponding to the opening and closing load of the furniture door, the furniture door is always opened and closed at a setting speed regardless of the size or weight of the furniture door to improve the reliability.

Second, the furniture door is always opened and closed at a set speed, thereby minimizing contact noise or contact resistance generated during the opening and closing process of the furniture door, thereby extending the service life and improving the quality of the product.

1 is a front sectional view showing an installation state of a built-in damper according to the prior art,

Figure 2 is a front sectional view showing a built-in damper according to the prior art,

3 is a front sectional view showing a built-in damper according to the present invention;

Figure 4 is an exploded perspective view showing the components of the built-in damper according to the present invention,

5 is a perspective view showing a shutoff valve and a check valve of a built-in damper according to the present invention;

6 to 9 is an operating state diagram of the built-in damper according to the present invention,

6 is a state in which the furniture door is closed, FIG. 7 is a state in which the furniture door is closed, FIG. 8 is a state in which the furniture door is opened, and FIG. 9 is an state in which the furniture door is opened.

Explanation of symbols on the main parts of the drawings

10: furniture hinge 20: built-in damper

21: cylinder 22: rod

22-2: fixing groove 22-6: pin ball

23: shut-off valve 23-2: the first fluid groove

23-4: Second fluid groove 23-6: Fluid through hole

23-8: 100 euros 24: O-ring

25: valve plate 26: end cap

27: seal 28: seal plate

29: check valve 29-2, 29-4: variable groove

Hereinafter, an embodiment according to the present invention will be described.

1 to 9, a built-in damper for a furniture hinge having a self-pressure control function to buffer the external load generated in the opening and closing process of the furniture door, built in the furniture hinge 10, forming the appearance of the built-in damper fluid A cylinder 21 for receiving a rod, a rod 22 accommodated in the cylinder 21 and reciprocating in the opening and closing process of the furniture door, and a shutoff valve coupled to a circumferential surface of the rod 22 to form a flow path ( 23) and a first fluid groove 23-2 including a valve plate 25 riveted to an outer circumferential surface of the shutoff valve 23 and formed on the front surface of the shutoff valve 23 to form a flow path. ; A second fluid groove 23-4 formed at a rear surface of the shutoff valve 23 to form a flow path between the valve plate 25; A fluid through hole (23-6) passing through the shutoff valve (23) to interconnect the first fluid groove (23-2) and the second fluid groove (23-4); And a check valve 29 mounted to the rod 22 to guide the fluid flow in the cylinder 21 to the first fluid groove 23-2.

First, the built-in damper 20 according to the present invention is to be embedded in the furniture hinge 10 to buffer the furniture door, in particular, to improve the shutoff valve 23 to change the flow path as well as the check valve 29 By further), it is characterized in that the door is always opened and closed at a constant speed regardless of the load of the furniture door.

At this time, since the configuration of the furniture hinge 10 is substantially the same structure as the prior art Figure 1 will be omitted herein.

In addition, among the components of the built-in damper 20, the cylinder 21, the rod 22, the O-ring 24, the end cap 26, the seal 27 and the seal plate 28 Since the component performs substantially the same function as the prior art, it will be described with reference to the reference numerals of Figs.

Here, the cylinder 21 forms the appearance of the built-in damper 20 as well as accommodates the fluid required for the damping action, the opening portion 21- of a predetermined size to accommodate the rod 22 at one end thereof. 6) is formed, the other end of the pin hole 21-4 of a predetermined size is coupled to the furniture hinge 10 via a hinge pin.

The rod 22 is reciprocated in the opening and closing process of the furniture door in the state of being inserted into the opening 21-6, and is coupled to the installation place of the furniture hinge 10 through a hinge pin. A pin hole 22-6 having a size and a fixing groove 22-2 to which the check valve 29 is coupled and fixed are formed concave.

At this time, the valve plate 25 for supporting the shut-off valve 23 is coupled to the front end of the rod 22, that is, the opposite side of the pin hole (22-6).

5, the shutoff valve 23 is mounted on the circumferential surface of the rod 22 to form a flow path in surface contact with the valve plate 25. A central hole through which the rod 22 passes is formed, and a fluid through hole 23-6 through which the fluid passes through is formed at the side of the central hole.

In addition, a first fluid groove 23-2 and a second fluid groove 23-4 forming the flow path are formed on the front and rear surfaces of the shutoff valve 23, respectively.

In addition, it is natural that the first fluid groove 23-2 and the second fluid groove 23-4 are connected to each other through the fluid passage hole 23-6 to move the fluid.

In addition, it is preferable that the volume of the first fluid groove 23-2 is smaller than that of the second fluid groove 23-4 in the process of forming the shutoff valve 23.

In addition, the shutoff valve 23 is formed with a white flow path (23-8) that the fluid is returned in the opening process of the furniture door, in particular, the white flow path (23-8) is the O-ring in the opening and closing process of the furniture door It is sealed or opened by 24.

At this time, since the valve plate 25 is riveted to one side of the shutoff valve 23 to maintain a stable fluid flow by the second fluid groove 23-4.

In addition, the O-ring 24 is interposed between the circumferential surface of the shutoff valve 23, that is, the front bulkhead A and the rear bulkhead B, and is in close contact with the inner circumferential surface of the cylinder 21 as well as the white oil. To open and close the furnace (23-8).

The end cap 26, the seal 27, and the seal plate 28 are sequentially coupled to the opening 21-6 to seal the cylinder 21, and the rod 22 at the center of the body. Each central hole in which is moved is formed.

And, as shown in (b) of Figure 5, the check valve 29 is mounted to the fixed groove 22-2 at a certain distance from the shut-off valve 23, the pressure is applied to the cylinder In this case, the fluid close to the shutoff valve 23 is introduced into the fluid passage hole 23-6 to guide the fluid in the direction of the first fluid groove 23-2.

In addition, variable grooves 29-2 and 29-4 are formed at both sides of the body of the check valve 28 to prevent sudden movement of the fluid.

In this case, the variable grooves (29-2, 29-4) is preferably formed in a rounded shape possible to induce the vortex of the fluid.

Hereinafter, the operation according to the present invention will be described.

First, when closing the furniture door, the rod 22 of the built-in damper 20 is pulled as shown in Figure 6, the shutoff valve 23 is moved to the left in the drawing, the shutoff valve 23 The fluid moves in the right direction of.

At this time, the fluid of the cylinder 21 is varied by the check valve 29 is guided to the first fluid groove (23-2), the first fluid groove (23-2) and the fluid through hole (23) -6) and the second fluid groove 23-4 are set as shown in FIG.

In particular, as shown in the partially enlarged view of FIG. 6, since the rear partition B is sealed by the O-ring 24, the fluid accommodated in the cylinder 21 may pass through the white flow path 23-8. It moves only to the first fluid groove 23-2 without going through it.

As described above, the first fluid groove 23-2 and the second fluid groove 23-4 having different volumes are formed on both side surfaces of the shutoff valve 23 as well as the check valve 29 is further added. By providing, the opening and closing speed of the furniture door is always kept constant regardless of the weight or size of the furniture door to improve the reliability of the product.

Claims

As a built-in damper for a furniture hinge having a self-pressure control function to be absorbed by absorbing the external load generated in the opening and closing process of the furniture door is built in the furniture hinge (10),

A cylinder 21 which forms the exterior of the built-in damper and accommodates a fluid, and is coupled to the rod 22 and the rod 22 which are accommodated in the cylinder 21 and reciprocate during the opening and closing of the furniture door. A shut-off valve 23 to be formed, and a valve plate 25 riveted to the shut-off valve 23;

Including;

A first fluid groove 23-2 formed on the front surface of the shutoff valve 23 to form a flow path;

A second fluid groove 23-4 formed at a rear surface of the shutoff valve 23 to form a flow path between the valve plate 25;

A fluid through hole (23-6) passing through the shutoff valve (23) to connect the first fluid groove (23-2) and the second fluid groove (23-4); And

A check valve (29) mounted to the rod (22) to guide the fluid flow in the cylinder (21) to the first fluid groove (23-2);

The built-in damper for furniture hinge having a pressure control function is further provided.
The method of claim 1, wherein the rod 22,

Built-in damper having a self-pressure control function, characterized in that the fixing groove (22-2) for fixing the position of the check valve (29) is formed.
The method of claim 1, wherein the shut-off valve 23,

Built-in damper having a self-pressure control function, characterized in that the volume of the first fluid groove (23-2) is formed smaller than the second fluid groove (23-4).
The method of claim 1, wherein the check valve 29,

Built-in damper having a self-pressure control function, characterized in that the variable groove (29-2, 29-4) is formed to prevent the fluid flowing through the first fluid groove (23-2) to move suddenly .