KR20080102529A - Self closing device of guide rail for drawer - Google Patents

Abstract

An automatic closing device of the guide rail for the drawer is provided to prevent the damage of drawer and guide and turn down noise by blandly closing a drawer through operating on the final point of time when drawer is closed. As to a guide rail for drawer in which a fixing member(30) is installed at the last room inner side of the mounting rail(800) and the fixing member is combined with the movable member(40) by the shift pin(50) and spring(60) and the movable member reciprocates by using one or more pullout rails(700) which is inserted into the mounting rail and is flexible and a slowdown means controlling the fallback rate of the movable member is comprised, a guide rail for drawer comprises the following features. The slowdown means is comprised of the damper(70) which performs the pinion gear role and the operation bar(80) performing the rack gear role.

Description

Self closing device of guide rail for drawer}

1 is a perspective view showing an automatic closing device of a guide rail according to the prior art,

Figure 2 is a plan view showing an automatic closing device of the guide rail according to the prior art,

Figure 3 is a perspective view showing an automatic closing device of the guide rail according to the present invention,

4 is an exploded perspective view illustrating the automatic closing device of FIG. 3;

5 is a plan view showing an automatic closing device according to the present invention,

6 is a cross-sectional view taken along the line A-A of FIG.

7 is a view showing the bottom surface of the damper shown in FIG.

8 is a plan view showing a closed state automatic closing device according to the present invention,

9 is a plan view showing a state in which the automatic closing device according to the present invention is opened.

<Description of the symbols for the main parts of the drawings>

10: guide rail 800: fixed rail

700: moving rail 801: recess

701: moving pin guide groove 802: mounting groove

20: automatic closing device 21: convex portion

30: fixing member 31: guide

33: guide wall 34: mounting projection

40: movable member 50: moving pin

60: spring 70: damper

80: working bar

The present invention relates to a guide rail for a drawer, and more particularly, to an automatic closing device of the guide rail for a drawer that can allow the drawer to close smoothly and slowly at the last closing point when the drawer is closed.

Guide rails for drawers are members mounted in pairs so as to be opposed to the inner space wall of the main body in which the drawer is located to move the drawers to the closed position and the open position in a sliding manner with respect to the main body. Typical places where such guide rails are used are desks, wardrobes, vanities, sinks, and the like. In addition, the guide rails may be used wherever there is a drawer and the drawer needs to be closed or opened in a sliding manner with respect to the main body.

Conventionally, the drawer must be applied until the drawer is completely closed, and when the drawer is closed with too much force, the drawer may reopen due to the impact repulsion with the main body. The installation of the guide rail prevents the drawer from opening and closes automatically.

However, there is a problem that damage to the main body, the drawer itself and the rail of the guide rail for supporting the drawer by being closed by a strong impact due to the load of the drawer and the goods stored therein.

In order to solve this problem, Republic of Korea Patent No. 573084 (Slide automatic closing device) has been disclosed.

The automatic closing device for the slide, as shown in the drawing,

The inner moving rail 700 which is attached to both sides of the drawer while sliding in the intermediate moving rail 900 and the intermediate moving rail 900 that slides in the fixed rail 800 and the fixed rail 800 mounted on the main body And, between each rail is provided with a ball retainer 950 of the appropriate length, the ball retainer 950 is inserted into the ball to allow the smooth movement of each moving rail (700,900).

And the automatic closing device 20 is installed at the end of the fixed rail (800).

The automatic closing device 20 includes a fixing member 100 mounted at the rear end of the fixing rail 800, a moving member 200 reciprocating from the fixing member 100, and a movement of the moving member 200. A moving pin 400 that selectively stops the moving rails 700 and 900 while serving as a guide, and a pair of springs 500 for allowing the moving member 200 to elastically move on the fixing member 100, and an inner side thereof. It is composed of a moving pin guide 300 which is coupled to the moving pin 400 and detachably coupled to the inside of the moving rail 700.

The moving pin guide 300 is formed with a moving pin guide groove, the moving pin guide groove is composed of a moving pin inlet and a moving pin engaging portion.

The automatic closing device 20 formed as described above is accommodated by the moving pin guide groove of the moving pin guide 300 mounted on the inner side moving rail 700 when the moving pin 400 is closed in the moving pin 400. The latch is released, and a pair of springs 500 apply tensile force to pull the moving pin guide 300 and the inner moving rail 700 coupled with the moving pin 400.

On the contrary, when the drawer is opened, the pair of springs 500 are extended and tensioned while the inner movable rail 700 pulls the movable pin 400, and the movable pin 400 moves the guide pin of the movable pin guide 300. It is caught by the fixing member 100 while exiting, and the inner movable rail 700 is freely drawn out.

The conventional closure device as described above has the effect of being prevented from being bounced off or less closed when tightly closed, but is severely pulled due to the tension of the spring, resulting in serious noise.

That is, since the tension of the spring is generated and disappears momentarily, when the drawer is closed, it makes a momentary hum and there is a problem in that the drawer used as a soft material is broken.

In addition, in the related art, in order to fasten the fixing member 100 to the fixing rail 800, binding holes 112 and 131 for riveting are formed as second fixing means.

Such riveting has a problem that labor costs are generated and manufacturing process is slowed down because the additional work after the assembly process.

The present invention has been made to solve the above problems, an object of the present invention is to draw a pull force of the spring when the drawer is closed, to provide an automatic closing device of the guide rail for drawers provided to be closed more smoothly and slowly. It is.

Still another object of the present invention is to provide an automatic closing device of a guide rail for a drawer which enables the coupling of the fixing member and the fixing rail to be possible without riveting or bolting.

The present invention to achieve the above object,

A fixing member is installed inside the rearmost portion of the fixed rail, and the movable member is selectively reciprocated by one or more movable rails which are inserted into and fixed to the fixed rail by being coupled to the movable member by a moving pin and a spring. In the guide rail comprising a deceleration means for adjusting the retraction speed of the movable member,

The deceleration means consists of a damper acting as a pinion gear and an actuating bar acting as a recreational gear. The damper is sealed and mounted at the rear center of the fixing member, and a plurality of wings are formed on the bottom surface of the damper. Grease is filled in between, and the operation bar provides a guide rail for a drawer, characterized in that it is formed on the rear side of the movable member to engage with the damper.

At this time, the fixing member is preferably formed with a guide wall for supporting the bending of the operating bar along the copper wire moving the operation bar.

In addition, the inner wall of the fixed rail is formed with a recess along the longitudinal direction of the rail, a plurality of mounting grooves are perforated on the rear bottom surface of the fixed rail, and both sides of the fixing member and the movable member are formed with convex portions corresponding to the recess. It is fitted and fitted, the mounting projection corresponding to the mounting groove is formed on the bottom surface of the fixing member may be installed without a separate bolt or rivet.

In addition, a conventional moving pin guide groove for receiving the moving pin may be directly formed at the rearmost center of the moving rail.

Hereinafter, with reference to the accompanying drawings will be described for the automatic closing device of the guide rail for drawers according to an embodiment of the present invention.

Figure 3 is a perspective view showing an automatic closing device of the guide rail according to the invention, Figure 4 is a perspective view showing the automatic closing device of Figure 3, and Figure 5 is a plan view showing an automatic closing device according to the present invention.

3 to 5, the guide rail 10 for the drawer according to the present invention is fixed to the fixed rail 800 is installed on both sides of the main body of the drawer, the drawer from the inside of the fixed rail 800 is installed on both sides of the drawer It includes one or more moving rails 700, and the automatic closing device 20 is installed at the lower end of the fixed rail (800).

The automatic closing device 20 includes a fixing member 30, a movable member 40, a moving pin 50, a spring 60, and a deceleration means.

As can be seen in the prior art, the fixing member 30 and the movable member 40 are installed by inserting the fixing member 30 inside the lower end of the fixing rail 800, and the movable member at the upper portion of the fixing member 30. 40 is coupled to reciprocate forward and backward.

At this time, both side walls of the fixed rail 800 is formed to be convex toward the center along the longitudinal direction of the rail. That is, recesses 801 are formed in the longitudinal direction on both inner walls of the fixed rail 800. At least two mounting grooves 802 are perforated on the bottom surface of the fixed rail 800.

And the fixing member 30 is formed to maintain a plane to abut the bottom surface of the fixing rail 800, both sides of the fixing member 30 and both sides of the movable member 40, the recess of the fixing rail (800) ( Convex portions 21 corresponding to 801 are formed and fitted to each other. In addition, a mounting protrusion 34 (see FIG. 6) corresponding to the mounting groove 802 is formed on the bottom surface of the fixing member 30. The fixing member 30 and the movable member 40 formed as described above are inserted by the recess 801 and the convex portion 21 without a separate bolt or rivet, and are not separated from the upper and lower mounting grooves of the fixing rail 800. 802 and the mounting protrusion 34 of the fixing member 30 are fixed so as not to be separated from side to side.

In addition, the center portion of the fixing member 30 is formed with a guide 31 having a conventional "a" shape to move the moving pin 50, the central portion of the movable member 40 of the fixing pin 50 A through hole 51 having a long hole shape is formed so that the upper portion protrudes above the movable member 40.

Then, both sides of the rear side of the fixing member 30 and both sides of the movable member 40 are formed with engaging portions facing each other, and a pair of springs 60 are mounted.

On the other hand, the deceleration means is a means for reducing the retraction speed when the movable member 40 is retracted by the spring 60, it is formed in the form of a pinion gear and a recreation gear.

6 is a cross-sectional view taken along the line A-A of FIG. 5 to show the deceleration means in detail, and FIG. 7 is a view showing the bottom surface of the damper shown in FIG.

Referring to FIGS. 5 and 6, first, a damper 70 serving as a pinion gear is coupled to a rear side central portion of the fixing material 30, and the fixing member 30 is mounted to mount the damper 70. There is formed a seating portion 32 recessed toward the bottom. At this time, the damper 70 is a gear is formed on the outer circumferential surface, the grease (G) is injected between the bottom surface of the fixing member 30 and the lower surface of the damper 70 inside the sealing process, A plurality of blades 71 are formed on the bottom surface of the damper 70 so that the blades 71 are rubbed by the grease G to suppress the rotation of the damper 70.

Next, the operation bar 80, which serves as a recreation gear, is integrally formed with the movable member 40 so as to extend toward the damper 70 side. On one surface of the operation bar 80 is formed a gear meshing with the gear formed in the damper (70).

Here, the operation bar 80 has a long shape so that the other side of the operation bar 80 on the copper wire in which the operation bar 80 is moved to the fixing member 30 in order to prevent it from being misaligned with the damper 70. The guide wall 33 supporting the side is preferably formed integrally.

On the other hand, in order to operate the moving pin 50 protruding to the upper side of the movable member 40 in order to operate the automatic closing device 20, the normal moving pin guide groove 701 in the rearmost central portion of the moving rail 700. Is formed.

That is, in the past, a separate moving pin guide was installed and used on the moving rail 700 to provide a moving pin guide groove, but in the present invention, the moving pin guide groove 701 is formed by directly processing the moving pin 700. It was.

Hereinafter, the operation of the automatic closing device of the guide rail formed as described above will be briefly described.

<Drawer closed>

8 is a plan view showing a closed state of the automatic closing device according to the present invention.

First, the drawer is closed, as shown in FIG. 8, the movable member 40 is located at the rear side of the fixing member 30, the spring 60 maintains an equilibrium, and the moving pin 50 is movable rail ( It is accommodated in the moving pin guide groove 701 of 700 to restrain the moving rail (700).

<When the drawer opens>

9 is a plan view showing a state in which the automatic closing device according to the present invention is opened.

When the drawer is pulled out, as shown in FIG. 9, the moving rail 700 is pulled forward while dragging the moving pin 50 and the movable member 40. The moving pin 50 that is continuously moving is moved along the straight portion in the “31” shaped guide 31 and is caught by the guide 31 while exiting the moving pin guide groove 701 at the bending portion of the guide 31. As a result, the movable rail 700 is freely drawn out.

At this time, the pair of springs (60) is stretched as the movable member (40) moves forward to generate a tensile force.

<With drawer open>

The open state of the drawer is as shown in FIG. 5 and is the final state when the drawer is opened.

<When the drawer is closed>

When the drawer is closed, as shown in FIG. 9, as the moving rail 700 enters the rear, the moving pin 50 is accommodated into the moving pin guide groove 701 so that the moving pin 50 is released from the guide 31. do. In this state, since the locking pin 50 is released, the spring 60 exerts a tensile force and pulls the movable member 40, the moving pin 50, and the moving rail 700 to perform a rapid retraction movement. .

At this time, the damper 70 and the operation bar 80 meshed with the rack and pinion gear at the time of retreat of the movable member 40 are engaged with each other to operate the retracting speed of the movable member 40 slowly and smoothly.

The deceleration of the damper 70 is adjusted according to the filling capacity of the grease filled therein.

As described above, the automatic closing device of the guide rail for the drawer according to the present invention can be operated at the last time when the drawer is closed, thereby allowing the drawer to be closed smoothly and slowly, thereby reducing noise, and preventing damage to the guide rail and the drawer. Can express luxury.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims You will understand.

Claims (4)

The fixing member 30 is installed at the rearmost inner side of the fixing rail 800, and the movable member 40 is coupled to the fixing member 30 by the moving pin 50 and the spring 60 to fix the fixing rail ( Guide rail for drawer including a deceleration means for adjusting the retraction speed of the movable member 40 is selectively reciprocated by at least one movable rail 700 is inserted into and stretched (800) To The deceleration means includes a damper 70 serving as a pinion gear and an actuating bar 80 serving as a reggear gear, and the damper 70 is sealed and mounted to a rear central portion of the fixing member 30. A plurality of wings 71 are formed on the bottom surface of the damper 70 and grease G is filled between the wings 71, and the operation bar 80 meshes with the damper 70. Guide rail for drawer, characterized in that formed on the rear side of the movable member (40). The guide rail for drawer according to claim 1, wherein the fixing member (30) is formed with a guide wall (33) for supporting the bending of the operating bar (80) along a moving line in which the operating bar (80) moves. . According to claim 1, wherein the inner wall of the fixing rail 800 is formed with a recess 801 along the longitudinal direction of the rail and a plurality of mounting grooves 802 on the rear bottom surface of the fixing rail 800 Perforated, and both sides of the fixing member 30 and the movable member 40 is formed by fitting the convex portion 21 corresponding to the concave portion 801, the bottom surface of the fixing member 30 Guide rail for drawer, characterized in that the mounting projection 34 corresponding to the mounting groove 802 is formed. The guide rail for the drawer according to claim 1, wherein a general moving pin guide groove (701) for receiving the moving pin (50) is directly formed at the rearmost center of the moving rail (700).

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