KR20170014995A

KR20170014995A - Self closing apparatus of slide a rail

Info

Publication number: KR20170014995A
Application number: KR1020150109122A
Authority: KR
Inventors: 추용호; 추일호
Original assignee: 추용호; 추일호
Priority date: 2015-07-31
Filing date: 2015-07-31
Publication date: 2017-02-08

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic closing apparatus for a slide rail, and more particularly, to a slide rail automatic closing apparatus which is moved smoothly and stably when a drawer is pulled in.
A moving member moving groove (21) for guiding the sliding movement of the moving member (30) is formed in a part of the fixing rail, which is partly opened at one side thereof, A housing (20) having a spring insertion portion (22) and a damper insertion portion (23) formed along the longitudinal direction of the closing device; A moving member 30 which is inserted into the moving member moving grooves 21 and is moved on the moving member moving grooves 21 by being hooked on the operating bodies 10 provided on both sides of the drawer in accordance with the drawing and pulling of the drawer; A spring 40 and a damper 45 inserted into the spring inserting portion 22 and the damper inserting portion 23 and both ends of which are coupled to the housing 20 and the shifting member 30, The moving member 30 includes a linear moving unit 31 formed to be linearly movable on the moving member moving groove 21 and recessed in a first guide groove 32 on one side wall thereof, The first guide groove 32 is formed at one side of the first guide groove 32 with a hinge protrusion 36 formed on one side of the first guide groove 31 and pivotally coupled to the first guide groove 32, A second guide groove 38 formed in the first guide groove 38 and a turning unit 35 formed in the second guide groove 38 so as to be bent so as to form an engaging groove 39. In the one side wall of the moving member moving groove 21, And is guided along the longitudinal direction so as to be inserted into the first guide groove 32 and the second guide groove 38 to guide the movement of the movable member 30. [ A lock 50 is formed in a portion of one side wall of the moving member moving groove 21 so that when the rotating unit 35 moves to one side of the moving member moving groove 21 and rotates, A supporting protrusion 52 and a guide protrusion 54 are formed at one side of the guide block 50 so as to be inserted into the guide groove 38 and the locking groove 39 so as to support the rotation unit 35, The other side wall of the member moving groove (21) is formed with a fitting guide portion (60) to insert the moving member (30) into the moving member moving groove.

Description

[0001] SELF CLOSING APPARATUS OF SLIDE A RAIL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic closing apparatus for a slide rail, and more particularly, to a slide rail automatic closing apparatus which is moved smoothly and stably when a drawer is pulled in.

Generally, drawer and shelves for storage are mounted on the furniture for storage. In order to draw / load the drawer and the shelf, a sliding rail is installed, and the drawer and the shelf can be drawn / drawn by the sliding of the sliding rail.

In recent years, a sliding rail has been developed which can automatically close the drawer and the shelf with the addition of the auto-closure for the furniture, and is equipped with a damper to mitigate the impact when the drawer and the shelf are automatically closed have.

Hereinafter, such a conventional technique will be schematically described with reference to the drawings.

Fig. 1 is a partially cutaway perspective view schematically showing the construction of furniture according to the prior art. As shown in the figure, a drawer 2 for forming a space for storage is mounted inside the furniture 1. Fig.

The drawer 2 is configured to be able to be drawn out from the inside of the furniture. For this purpose, a sliding rail 3 is provided inside the drawer 2. Preferably, the sliding rail 10 is constructed in a multi-stage structure so that the drawer 2 can be drawn out by a sufficient distance, and is installed at the same height on both sides of the inner wall surface of the furniture 1. [

The construction of the sliding rail 3 is constituted by a fixed rail fixed on the inside of the furniture and a movable rail provided on both sides of the drawer or further comprising an intermediate rail between the fixed rail and the movable rail, A detailed description thereof will be omitted.

On the other hand, an automatic closing device, that is, an automatic closing device 4, is provided on the fixed rail of the sliding rail 3. The automatic closing device is provided for facilitating the pull-in of the drawer 2, so that the drawer is closed while the movable rail is automatically moved in the closing process when the drawer is pulled in, .

As examples of such conventional automatic closing devices, Patent Registration Nos. 1056874, 0798453, 10-2007-0089728, and Utility Model Publication 20-2011-0004194 are disclosed.

In the conventional techniques, a guide hole having a linear moving hole and a curved moving hole is formed on a side surface of a housing, a moving member is provided to be moved along the guide hole, and an elastic member (spring) (Dampers), so that an operating body provided on the moving rail at the time of pulling in and pulling out the drawer guides the moving member to move the moving member on the guide hole.

However, in the above technique, as the moving member is guided along the guide hole, pressure is continuously applied to the protrusion formed on the moving member so as to be fitted in the guide hole, so that the protrusion may be damaged. When the moving member moves close to the inner circumferential surface of the housing So that noise can not be generated smoothly.

In addition, when the drawer is pulled out, the moving member is drawn while the projection is inserted into the curved moving hole, and the spring is pulled while the moving member is hooked to hold the state. However, since the curved moving hole is simply engaged with the curved moving hole, And it was recovered to its original position.

Patent Registration No. 1056874 (2011.08.08, automatic closing device with damper) Patent Registration No. 0798453 (January 21, 2008, auto closures for furniture) Open Utility Model No. 20-2011-0004194 (2011.27.27, Incoming / outgoing structure of withdrawal net for storage apparatus)

SUMMARY OF THE INVENTION The present invention has been devised to solve the problems described above, and it is an object of the present invention to provide a guiding block in a moving member moving groove of a housing, so that a moving member moves along the guiding block, And the moving member can be smoothly moved without generating noises at the time of forming the oil groove, even when the pressure is constantly applied.

Further, according to the present invention, since only one side of the housing is opened and the fitting guide portion is formed, the shifting member can be easily fitted into the shifting member moving groove and the combined state can be maintained, And a slide rail automatic closing device that can easily and conveniently operate the slide rail.

Further, according to the present invention, by forming the locking protrusion and the locking hole, the moving member is hooked on the guide protrusion when the drawer is pulled out, and the locking protrusion is caught in the locking groove to prevent the moving member from being restored to the original position through the double locking operation And a slide rail automatic closing device.

According to an aspect of the present invention, there is provided a drawer according to the present invention, which includes: a movable rail, which is coupled to a fixed rail provided on both inner side surfaces of a drawer body, (20) having a spring insertion portion (22) and a damper insertion portion (23) formed along the longitudinal direction of the automatic closing device; A moving member 30 which is inserted into the moving member moving grooves 21 and is moved on the moving member moving grooves 21 by being hooked on the operating bodies 10 provided on both sides of the drawer in accordance with the drawing and pulling of the drawer; A spring 40 and a damper 45 inserted into the spring inserting portion 22 and the damper inserting portion 23 and both ends of which are coupled to the housing 20 and the shifting member 30, The moving member 30 includes a linear moving unit 31 formed to be linearly movable on the moving member moving groove 21 and recessed in a first guide groove 32 on one side wall thereof, The first guide groove 32 is formed at one side of the first guide groove 32 with a hinge protrusion 36 formed on one side of the first guide groove 31 and pivotally coupled to the first guide groove 32, A second guide groove 38 formed in the first guide groove 38 and a turning unit 35 formed in the second guide groove 38 so as to be bent so as to form an engaging groove 39. In the one side wall of the moving member moving groove 21, And is guided along the longitudinal direction so as to be inserted into the first guide groove 32 and the second guide groove 38 to guide the movement of the movable member 30. [ A lock 50 is formed in a portion of one side wall of the moving member moving groove 21 so that when the rotating unit 35 moves to one side of the moving member moving groove 21 and rotates, A supporting protrusion 52 and a guide protrusion 54 are formed at one side of the guide block 50 so as to be inserted into the guide groove 38 and the locking groove 39 so as to support the rotation unit 35, The other side wall of the member moving groove (21) is formed with a fitting guide portion (60) to insert the moving member (30) into the moving member moving groove.

The fitting guide portion 60 includes a fitting guide hole 61 formed in the other side wall of the moving member moving groove 21 in the longitudinal direction and a moving member moving groove 21 And an insertion guide band 62 formed to elastically operate the edge of the other side wall of the movable member moving groove 21 to adjust the width of the moving member moving groove 21. [

A locking protrusion 70 is formed at a lower side of the lower portion of the rotation unit 35. When the rotation unit 35 is rotated on the bottom surface of the moving member moving groove 21, 70 are inserted through the engagement hole 75. [0031] As shown in FIG.

According to the slide rail automatic closing apparatus constructed as described above, since the guide block is formed and the moving member is moved along the guide block while being bound to the guide block, even if external pressure is continuously applied, breakage of the moving member, Therefore, it is possible to smoothly move the moving member without generating noises by forming the oil groove in the guide block and the moving member moving groove, thereby improving the operational reliability.

Further, since only one side of the housing is opened and the fitting guide portion is formed, the fitting operation of the shifting member is facilitated, and the fitting state of the shifting member is maintained so that the fitting operation of the housing can be facilitated. So that the moving member is prevented from being restored to its original position, thereby improving the operational reliability, and consequently having an advantage in terms of competitiveness with other products.

1 is a partially cutaway perspective view schematically showing a structure of furniture,
2 is a perspective view of a slide rail automatic closing apparatus according to the present invention,
3 is an exploded view of a slide rail automatic closing device according to the present invention,
4A is a perspective view of the housing of the slide rail automatic closing device according to the present invention,
FIG. 4B is a bottom perspective view of the housing of FIG. 4A,
5 is a sectional view of the housing according to the present invention,
6 is an exploded perspective view showing a moving member of the slide rail automatic closing device according to the present invention,
FIG. 7 is a perspective view seen from the opposite side of FIG. 6,
8 is a sectional view of a slide rail automatic closing device when a drawer according to the present invention is inserted;
9 is a sectional view of a slide rail automatic closing device in a case where a drawer is pulled out according to the present invention.

Hereinafter, a slide rail automatic closing apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in the drawings, an automatic closing apparatus for a slide rail according to an embodiment of the present invention includes a housing 20 coupled to a fixed rail provided on both inner surfaces of a drawer body and having a moving member moving groove 21 formed at one side thereof, A moving member 30 inserted into the moving member moving groove 21 of the moving member 30 and moved on the moving member moving groove 21 of the moving member 30 and a spring 40 provided between the moving member 30 and the housing 20, A damper 45, a guide block 50, a support protrusion 52 and a guide protrusion 54, and a fitting guide portion 60.

The housing 20 is partially opened and the moving member moving groove 21 is formed therein and the spring 40 and the damper 45 are inserted into the other side along the longitudinal direction of the automatic closing device. The spring insertion portion 22 and the damper insertion portion 23 are formed.

At this time, a groove or a projection is formed on one side of the spring insertion part 22 to fix one end of the spring. The spring may be an elongated spring or a coil spring having a ring at both ends.

The damper 45 is inserted into the damper inserting portion 23, and the rod end is coupled to the shifting member. The damper 45 is configured to buffer the shifting member while the rod is pulled in or out as the shifting member moves.

That is, when the drawer is retracted, the movable member is restored to its original position. At this time, since the movable member is restored at a high speed due to the restoring force of the spring, there is a possibility that the movable member is damaged by the impact, to be.

The damper 45 may be of any known construction, and typically a gas shock absorber is used.

Here, the moving member 30 of the present invention is configured to move on the moving member moving groove 21 by being hooked on the operating body 10 provided on both sides of the drawer according to the pull-in and pull-out of the drawer. do. The reason why the moving member is composed of two parts, that is, the linear moving unit 31 and the rotating unit 35 is that when the drawer is pulled out, the actuating member comes out of the engaging part 37 and rotates the moving member. Only the unit is rotated so that the actuating body is released.

Accordingly, since the linear motion unit 31 maintains the initial state without changing the angle, not only the pressure is applied to the connection portion between the spring and the damper but also the spring and the damper are not rotated, There is an advantage that it can be prevented.

The linear movement unit 31 is configured to linearly move on the moving member moving groove 21 and has a spring fixing groove 34a and a damper fixing groove 34a for inserting and fixing the spring 40 and the damper 45, A first guide groove 32 is formed at a predetermined depth so as to be coupled to the guide block 50 at one side wall and a second guide groove 32 is formed at the other side for hinge connection with the rotation unit 35 A hinge hole 31a is formed.

The linear movement unit 31 is guided to the guide block 50 while being bound to the guide block 50.

The rotary unit 35 is coupled to the hinge hole 31a of the linear motion unit 31 by a hinge protrusion 36. The rotary unit 35 has a predetermined depth So that the engaging portion 37 is formed.

It is preferable that the latching part 37 is formed in a 'U' shape so that the latching part can be retained without being easily pulled out due to the part where the latching part 30 is inserted and hooked.

A second guide groove 38 is formed on one side wall of the rotation unit 35 so as to be co-located with the first guide groove 32. The second guide groove 38 extends in the one direction The pivoting direction of the pivoting unit).

The second guide groove 38 is engaged with the guide block 50. When the drawer is pulled out from the drawn-in state, the operating body 10 is moved while being caught by the engaging portion 37 of the rotating unit 35 So that the moving member can be easily moved while being guided by the guide block 50 as the member is moved.

At this time, when the operating body 10 is disengaged from the engaging portion 37 and the rotating unit is rotated, the rotating unit is in a state of being held by the supporting protrusions 52, rather than being guided by the guide block. That is, when the guide block 50 is engaged with the second guide groove 38 of the pivoting unit, the pivoting unit is moved. When the pivoting unit reaches the position where it is separated from the pivoting portion, The support protrusion 52 formed at one side of the guide block is drawn into the second guide groove 38 to support the rotation unit.

The guide protrusion 54 formed at one side of the support protrusion 52 is engaged with the engaging groove 52 at the time of the turning operation of the rotation unit, 39, and the restoring operation of the rotating unit 35 is interrupted as the engaging groove 39 is caught by the guide protrusion 54, so that restoration of the moving member is interrupted.

The guide block 50 of the present invention is for guiding movement of the movable member 30 and is formed along one side wall of the movable member moving groove 21 along the longitudinal direction of the housing, 1 guide groove 32 and the second guide groove 38, respectively.

The guide block 50 is preferably formed in a rectangular or semicircular shape so as to guide stable movement of the moving member as well as fitting of the moving member. There is no limitation to its shape.

The supporting protrusions 52 are formed on a part of one side wall of the moving member moving groove 21 and are inserted into the second guide groove 38 to be rotated Unit, and the guide projection 54 is inserted into the engagement groove 39 so as to keep the rotating unit in a rotated state, while blocking restoration of the moving member.

The support protrusions 52 and the guide protrusions 54 are preferably formed in a circular shape rather than a square shape for smooth rotation of the rotation unit.

The fitting guide portion 60 is formed on the other side wall of the moving member moving groove 21. The fitting guide portion 60 is formed on the other side wall of the moving member moving groove so as to fit the moving member 30 to the inside of the moving member moving groove. To open its inner space.

As an example of the fitting guide portion 60, a fitting guide hole 61 formed in the other side wall of the moving member moving groove 21 so as to extend in the longitudinal direction and a moving member moving And an insertion guide band 62 formed to adjust the width of the moving member moving groove 21 while being elastically operated on the edge of the other side wall of the groove 21.

The fitting guide bands 62 are formed by the formation of the fitting guide holes 61. The fitting guide bands 62 should be formed to a thickness that is not damaged during fitting of the moving member.

In this case, when the insertion guide band 62 is made thin, it is relatively easy to fit the moving member, but there is a possibility of breakage such as the middle portion is separated, so that the wire 63 Can be built in.

Due to the formation of the wire 63, the fit-in guide band can maintain the strength and, at the same time, it is possible to prevent the widening phenomenon that may occur due to the fit-engagement of the moving member due to the high stability.

The other side wall of the linear movement unit 31 may be formed so that the fitting protrusion 33 protrudes to be guided by the fitting guide hole 61 and guided by the fitting guide hole 61.

That is, the fitting guide hole 61 is configured to form the fitting guide band 62, but it is possible to guide the linear movement unit 31 to prevent the linear movement unit from flowing.

At this time, since the interference protrusion 33 may protrude to the outside of the housing, the interference protrusion 33 should be formed to have a length equal to or smaller than the thickness of the fitting guide band 62 so as not to protrude from the outer wall of the housing 20 will be.

In addition, the fitting guide portion 60 of another embodiment may be formed by softly forming a part of the other side wall of the moving member moving groove 21 or by making the thickness smaller than the other side walls of the housing.

In other words, the other side wall of the moving member moving groove 21 is formed to be soft or thin so as to be easily opened.

Meanwhile, the slide rail automatic closing apparatus of the present invention can be provided so that when the drawer is pulled out, the moving member is hooked at two places instead of one place.

For this, a locking protrusion 70 is formed at a lower side of the lower portion of the rotation unit 35, and when the rotation unit 35 is rotated on the bottom surface of the moving member moving groove 21, And a locking hole 75 is formed to penetrate the locking protrusion 70 so as to be caught.

Therefore, when the rotation unit 35 is rotated, the guide protrusion 55 is primarily engaged with the catching groove 39, and the catching protrusion 70 is caught in the catching hole 75 together with the guide protrusion 55 So that the operation reliability can be improved due to the accurate engagement of the movable member.

An oil groove 80 is formed on the upper surface of the guide block 50 and the bottom surface of the moving member moving groove 21 to fill the oil along the longitudinal direction of the housing.

Due to the formation of the oil groove 80, the movement of the shifting member 30 is smooth by the oil filled between the shifting member 30 and the friction between the shifting member 30 and the shifting member is minimized, There is an advantage to be able to do.

On the other hand, when the spring is contracted on the bottom surface of the moving member moving groove 21 of the housing 20, that is, when the moving member is restored to the original position, The elastic deforming portion 24 is formed so that the movable member is partially cut to engage the engaging portion 37 to temporarily move the movable member downward and then return.

According to the present invention configured as described above, the conventional moving member is not moved in the guide hole, but a completely new type, that is, a configuration in which the moving member is moved while being in contact with the guide block while being in surface contact, It is possible to reduce the maintenance cost and the reliability of use by prolonging the service life of the moving member and the damage of the other components. Thus, it is possible to smoothly move the moving member due to the oil groove, It is a very useful invention that can enhance the product competitiveness by improving the operational reliability by doubling the moving member.

10: actuating body 20: housing
21: moving member moving groove 22: spring insertion portion
23: damper inserting portion 24: elastic deformation portion
30: moving member 31: linear moving unit
31a: Hinge hole 32: First guide groove
33: insertion projection 34a: spring fixing groove
34b: damper fixing groove 35: rotation unit
36: hinge projection 37:
38: second guide groove 39: latching groove
40: spring 45: damper
50: guide block 52: support projection
54: guide projection 60:
61: fitting guide hole 62: fitting guide band
63: wire 70:
75: Retaining hole 80: Oil groove

Claims

A movable member moving groove 21 for guiding the sliding movement of the moving member 30 is formed in a part of one side of the movable rail moving groove 21, A housing 20 having a spring insertion portion 22 and a damper insertion portion 23 formed along the longitudinal direction; A moving member 30 which is inserted into the moving member moving grooves 21 and is moved on the moving member moving grooves 21 by being hooked on the operating bodies 10 provided on both sides of the drawer in accordance with the drawing and pulling of the drawer; A spring 40 and a damper 45 inserted into the spring inserting portion 22 and the damper inserting portion 23 and both ends of which are coupled to the housing 20 and the shifting member 30, As a result,
The moving member 30 includes a linear moving unit 31 formed to be linearly movable on the moving member moving groove 21 and recessed in a first guide groove 32 on one side wall thereof, The first guide groove 32 and the second guide groove 32 are formed at the same position as the first guide groove 32. The first guide groove 32 and the second guide groove 32 are formed at the same position, And a rotating unit 35 having a groove 38 and a locking groove 39 formed in the second guide groove 38 so as to be bent,
A guide block 50 is installed on one side wall of the moving member moving groove 21 so as to be inserted into the first guide groove 32 and the second guide groove 38 to guide the movement of the moving member 30, Is formed,
The second guide groove 38 and the engaging groove 39 are formed in a part of one side wall of the moving member moving groove 21 when the rotating unit 35 is moved to one side of the moving member moving groove 21, A support protrusion 52 and a guide protrusion 54 are formed at one side of the guide block 50 so as to be spaced apart from each other so as to support the rotation unit 35,
And an engaging guide portion (60) is formed on the other side wall of the moving member moving groove (21) so as to sandwich the moving member (30) inside the moving member moving groove.

The method according to claim 1,
The fitting guide portion 60 includes a fitting guide hole 61 formed in the other side wall of the moving member moving groove 21 in the longitudinal direction and a moving member moving groove 21 And an insertion guide band (62) formed to resiliently move at an edge of the other side wall of the movable member moving groove (21) to adjust a width of the movable member moving groove (21).

3. The method of claim 2,
Characterized in that a wire (63) is built in the insertion guide band (62) so as to enhance strength and stability of the insertion guide band.

3. The method of claim 2,
The fitting protrusion 33 protrudes from the other side wall of the linear movement unit 31 so that the fitting protrusion 33 is inserted into the fitting guide hole 61 and guided by the fitting guide hole 61, Is formed to have a length equal to or smaller than the thickness of the fitting guide strip (62) so as not to protrude to the outer wall of the slide rail (20).

The method according to claim 1,
The fitting guide portion 60 is formed to be soft on a part of the other side wall of the moving member moving groove 21 to adjust the width of the moving member moving groove 21 or to be formed thinner than the other side walls of the housing A slide rail automatic closing device.

The method according to claim 1,
A locking protrusion (70) is formed on a lower side of the rotating unit (35) with a predetermined length,
Wherein a locking hole (75) is formed through the bottom surface of the moving member moving groove (21) so that the locking protrusion (70) is engaged when the rotating unit (35) is rotated. Device.

The method according to claim 1,
Wherein an oil groove (80) is formed on the upper surface of the guide block (50) and the bottom surface of the moving member moving groove (21) along the longitudinal direction of the housing.