KR20070084723A - Self-closing mechanism with a damper - Google Patents

Abstract

An automatic closing device with a damper is provided to be used in a lower part mounting type slide, and to make smooth automatic closing performed at the time of automatic closing of the slide. An automatic closing device with a damper includes a housing(110), a moving member, an elastic spring(170) and a damper. The body portion of the housing(110) includes a damper placement portion, a guide portion and a first spring coupling portion. The damper placement portion includes a damper body insertion recess, a damper front protrusion insertion recess, and a damper piston rod insertion recess. On a bottom surface of the moving member guide portion, a guide recess consisting of a straight line shaped recess and a circular recess is formed.

Description

Self-closing mechanism with a damper

1 is a perspective view of a slide with an automatic closing device according to the present invention.

Figure 2 is a front perspective view of the automatic closing device according to the present invention.

3 is a rear perspective view of the automatic closing device shown in FIG. 2;

Figure 4 is an exploded perspective view of the automatic closing device shown in FIG.

Figure 5 is a rear perspective view of the housing of the automatic closing device.

6 is a perspective view of a linear motion member of the moving member.

7 is a perspective view of a rotary motion member of the moving member.

8 is an opposite perspective view of the rotary motion member shown in FIG.

9 to 12 are plan views showing the operating state of the automatic closing device according to the present invention.

The present invention relates to an automatic closing device with a damper for use in a slide for mounting the bottom.

When a drawer is installed in a desk or a cabinet, a slide is generally attached so that the drawer can be pulled out and pulled in and out of a main body such as a desk or a cabinet. It is classified as a bottom-mounted slide attached to the bottom of the.

Conventionally, even when a drawer with a slide is pulled in with only a slight amount of force, the drawer is opened again due to a collision repulsive force, or a part of the drawer remains open when the drawer is not completely inadvertently drawn by the user. There is this.

In order to alleviate this inconvenience, an automatic closing device for automatically closing the slide is described in Korean Patent Application Nos. 2002-7014606, 2005-0047588, etc. However, these are all related to the automatic closing device used for side mounted slides. The automatic closing device which can be used for the bottom mounted slide has not been developed yet.

It is an object of the present invention to provide an automatic closing device which can be used for a bottom mounted slide. Another object of the present invention is to provide an automatic closing device in which a smooth automatic closing is performed during automatic closing of a slide.

In order to achieve the above object, the present invention is a cover-shaped housing formed of a fixed part formed on both ends of the fuselage part and the fuselage part, a moving member consisting of a linear motion member and a rotary motion member, than the spring fuselage part in the vicinity of both ends of the spring An automatic closing device comprising an elastic spring having a tapered portion that is thinly formed, and a damper including a body having a front protrusion and a piston rod protruding from one side of the body.

At this time, the body portion of the housing (1) damper seating portion consisting of a damper body insertion groove, a damper front projection insertion groove, and a damper piston rod insertion groove, (2) the first end surface, the second end surface, the first side surface And, and one side includes a bottom surface and the moving member guide portion of the open groove shape, (3) Located on the side of the damper body insertion groove and includes a first spring binding portion coupled to one side of the elastic spring, the movement A guide groove composed of a straight groove and a circular groove is formed on the bottom surface of the member guide portion.

In addition, the linear motion member of the moving member is composed of a rotary motion member coupling portion and the body portion having a binding hole, the second spring binding portion is coupled to one side of the coupling spring and the elastic spring is inserted into the guide groove on one side of the body portion It is formed, the other side of the body is formed with a sliding projection, the lower body portion of the engaging projection is formed a piston rod insertion groove into which the piston rod of the damper is inserted.

In addition, the rotary motion member of the moving member is a rotary projection having two straight surfaces and two curved surfaces, a rotary motion space portion formed with a binding protrusion inserted into the binding hole of the rotary motion member coupling portion of the linear motion member, and It comprises a hook engaging portion consisting of the first engaging jaw and the second engaging jaw coupled to the detachable protrusion formed on one side of the slide moving rail.

In the automatic closing device according to the present invention, one side of the elastic spring is coupled to the first spring fastening portion of the body of the housing, and the other side of the elastic spring is coupled to the second spring binding portion of the linear motion member of the movable member, and the movable member is of the housing. It is operated to automatically close the bottom mounted slide by performing a reciprocating movement along the moving member guide.

On the other hand, it is preferable that an over-rotation preventing jaw is formed in the circular groove of the guide groove of the movable member guide part to prevent excessive rotation of the rotary motion member of the movable member.

In addition, it is preferable that the second locking step of the rotary motion member of the moving member is formed thicker than the first locking step.

In addition, it is preferable that an inclined surface is formed on one side of the first locking jaw. The inclined surface facilitates recombination of the detachable protrusion formed on one side of the slide moving rail even when the automatic closing device malfunctions.

In addition, it is preferable that the fixing parts formed at both ends of the body portion of the housing include a fixing groove and a fixing protrusion, and the central fixing groove and the fixing protrusion are formed at the body portion of the housing.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a perspective view of a bottom mounted slide 1 having a general configuration to which an automatic closing device 100 according to the present invention is attached. The bottom mounted slide 1 has a fixed rail 30 having a plurality of raceways 15. And a moving rail 20 which slides on the fixed rail 30, and a ball retainer (not shown) is positioned between the two rails 30 and 20 so that the moving rail 20 can slide. The lower end of the fixing rail 30 is connected to a slide fixing part 10 composed of a horizontal plate 12 and a vertical plate 11. The slide 1 has a fixing part 10 such as a desk. The bottom and / or sidewalls are fixed by suitable means such as screws and the drawers are installed by fastening to the movable rail 20 also by suitable means such as screws. Thus, when the drawer is pushed or pulled, the drawers are fixed fixed to the drawers. In and out of the desk along the fixed rail 30 by the rail 20 It is presented.

The automatic closing device 100 of the present invention is attached to a suitable position of the horizontal plate 12, one side of the movable rail 20 is formed in the cross section formed to be coupled with the automatic closing device 100 according to the present invention "L Detachable protrusion 25 is provided.

2 to 4, the automatic closing device 100 according to the present invention is a housing 110 having a cover shape, an elastic spring 170 attached to the side of the housing 110, the housing 110 It is composed of a damper 190 attached to the inside of the, and the moving member 165 consisting of a linear movement member 150 and the rotary movement member 140.

The elastic spring 170 used in the present invention has a tapered portion 174 that is formed thinner than the spring fuselage portion near the both ends 172 of the spring. The elastic spring 170 of this type has a spring having both ends in an annular shape. The service life is much longer than that.

The damper 190 is a general damper including a body 192 having a front protrusion 194 and a piston rod 195 that protrudes from one side of the body 192 and has a relatively long length, and is suitable for implementing the present invention. Any damper can be used.

The housing 110 has a body portion 120 and a fixing portion 112 formed at both ends of the body portion. The fixing portion 112 fixes the housing 110 to the horizontal plate 12 of the slide 1. Therefore, it is sufficient to have a structure that can be fixed to the horizontal plate 12 by a suitable fixing means such as screws, in the illustrated embodiment, the fixing portion 112 and the fixing groove 114 and the fixing projections. The fixing protrusion 113 protrudes from the horizontal plate member 12 through the fixing groove 114 and has a coupling portion of a shape opposite to the fixing protrusion 113. By fixing, the fixing part 112 can be fixed to the horizontal plate 12 of the slide 1. In addition to the fixing part 112, the illustrated embodiment also has an elongated housing 110 in which the middle part of the operation is lifted. In order to prevent that, as shown in a partial enlarged view of FIG. 2, the fuselage part 1 of the housing 110 is provided. A central fixing groove 116 is formed in the central portion of the 20 and the same fixing protrusion 117 as the fixing protrusion 113 may be formed. However, the central fixing groove 116 and the fixing protrusion 117 may be formed therein. Optionally, the fixing means may not be formed. In addition, the fixing part 112 has a suitable position of the horizontal plate 12 of the slide 1 in advance so as to be positioned at the correct position when the automatic closing device 100 is installed. Position fixing projections 15 to be fitted into the groove (not shown) formed in the may be formed.

 As shown in FIG. 5, one side of the fuselage 120 of the housing 110 includes a damper fuselage insertion groove 121, a damper front protrusion insertion groove 122, and a damper piston rod insertion groove 123. The damper seating portion is formed.

On the other side of the body portion 120 of the housing 110, a moving member guide portion including a first end surface 124, a second end surface 125, a first side surface 126, and a bottom surface 127 The movable member guide portion has a groove shape in which one side is open. Accordingly, a side groove 136 (see FIG. 2) is formed in one side of the housing 110, and the movable member 165 is formed in the side groove 136. The bottom surface 127 of the movable member guide portion includes a linear groove 133 and a circular groove 134 located at one side of the linear groove 133. 132 is formed.

The moving member guide portion includes a first inclined surface 128 that meets the second end surface 125, a second inclined surface 129 facing the first end surface 124, and a second side surface connecting the inclined surfaces 128 and 129. Preferably, the guide protrusion 130 having the 131 is formed to be in contact with the first side surface 126. The guide protrusion 130 is moved along with the guide groove 132 formed on the bottom surface 127. It serves to guide the reciprocating motion of 165, which will be described later.

On the side of the body portion 120, that is, the side of the damper body insertion groove 121, a first spring engagement portion 137 to which one side of the elastic spring 170 is coupled is formed (see FIG. 2). The portion 137 is composed of a spring end binding portion 138 into which the end 172 of the elastic spring 170 is inserted and a spring taper portion binding portion 137 into which the tapered portion 174 is inserted, and the shape thereof is a straight line. It is formed to correspond to the shape of the spring end binding portion 154 and the spring tapered portion binding portion 153 of the second spring binding portion 152 of the movement member 150 (see Fig. 6).

The linear motion member 150 of the moving member 165, as shown in Figure 6, the binding hole 163 is formed and consists of a rotary motion member coupling portion 162 and the body portion 151 having an arc shape do.

One side of the body portion 151 of the linear motion member 150, the coupling projection 160 and the other side of the elastic spring 170 is inserted into the guide groove 132 formed on the bottom surface 127 of the movable member guide portion The second spring engagement portion 152 is formed therein. The second spring engagement portion 152 is tapered with a spring end engagement portion 154 into which the end 172 of the elastic spring 170 is inserted, as described above. And a spring tapered portion fastening portion 153 into which the portion 174 is inserted. A sliding protrusion 155 is formed on the other side of the body portion 151. The surface on which the sliding protrusion 155 is formed is a movable member. Part 165 which is in frictional contact with the horizontal plate 12 of the slide 1 during the reciprocating motion of 165 is made in the form of a projection so that the contact area is small to minimize the frictional resistance. Piston rod insertion into which the piston rod 195 of the damper 190 is inserted in the lower portion of the 160 A groove 156 is formed, and the insertion groove 156 is an onslaught opening to the end surface 161 of the body portion 151.

The rotary member 140 of the moving member 165, as shown in Figures 7 and 8, has the same shape as the claw of the crab. Two straight surfaces on one side of the thickness direction of the rotary member 140 A rotating protrusion 147 having 148 and two curved surfaces 149 is formed, and the other side is inserted into the binding hole 163 of the rotary motion member coupling part 162 of the linear motion member 150. The rotary motion space 145 in which the binding protrusion 146 is formed is formed.

In addition, the hook engaging portion 141 consisting of the first locking jaw 142 and the second locking jaw 143 is formed on one side of the surface direction of the rotary motion member 140. The angle α formed by the locking jaws 142 and 143 of the hook locking portion 141 forms a right angle. The hook locking portion 141 is formed at one side of the moving rail 20 when the slide 1 moves to the retracted position. In this case, it is preferable that the second locking jaw 143 is formed to be thicker than the first locking jaw 142, and the inclined surface on one side of the first locking jaw 142. It is preferable that 144 be formed. A detailed description thereof will be made later.

Hereinafter, the coupling relationship between the components will be described with reference to FIG. 4.

First, the moving member 165 is formed by inserting the binding protrusion 146 of the rotary motion member 140 into the binding hole 163 formed in the rotary motion member coupling portion 162 of the linear motion member 150. Since the rotary motion space 145 is formed around the binding protrusion 146 of the rotary motion member 140 to which the arc-shaped rotary motion member coupling part 162 of the linear motion member 150 is seated (FIG. 7). Reference) The rotary motion member 140 may be smoothly rotated while being coupled to the linear motion member 150.

The moving member 165 has a coupling protrusion 160 of the linear motion member 150 and a rotation protrusion 147 of the rotary motion member 40 formed on the bottom surface 127 of the moving member guide part of the housing body 120. It is positioned in the housing body portion 120 to be inserted into the guide groove 132 (see Fig. 5). At this time, the first contact surface, the second contact surface, and the third contact surface (see Fig. 6) of the rotary motion member 150 Respectively, the bottom surface 127 of the movable member guide part, the upper surface of the guide protrusion 130, and the second side surface (see FIG. 5) are contacted with each other. The rotating protrusion 147 is a circular groove 134 of the guide groove 132. The circular groove 133 is separated from the circular groove 134 only when the linear surface 148 (see FIG. 8) of the rotation protrusion is located in parallel with the linear groove 133 of the guide groove 132. You can do a linear motion along the.

The damper 900 is inserted into the damper seating portion of the body portion 120 of the housing 110-the damper body insertion groove 121, the damper front projection insertion groove 122, and the damper piston rod insertion groove 123-. One side of the elastic spring 170 is the first spring binding portion 137 of the body portion 120 of the housing 110, the other side is the second spring of the linear motion member 150 of the moving member 165. By binding to the binding unit 152, the automatic closing device 100 of the present invention is completed, and by fixing the fixing part 112 of the housing to the designated position of the horizontal plate 12 of the slide 1, the device 100 Is installed on the slide (1).

Hereinafter, an operation relationship of the automatic closing device 100 according to the present invention will be described with reference to FIGS. 9 to 12. In FIGS. 9 to 12, the housing 110 is omitted while being shown in the housing while the housing 110 is omitted for convenience of understanding. The damper 190, the linear motion member 150, and the rotary motion member 140 are shown in solid lines, or only partially visible, and the linear motion member 150 and the rotary motion member 140 perform reciprocating motion. Only the linear groove 133 and the circular groove 134 constituting the guide groove 132 of the housing body portion 120 to be shown by the dotted line.

When the drawer is retracted, the moving rail 20 of the slide 1 moves in the direction of the arrow, and at this time, the hook catching portion 141 of the rotary motion member 140 of the automatic closing device 100 is detachable of the moving rail 20. In the open position toward the protrusion 25 (Fig. 9). The detachable protrusion 25 is engaged with the second inclined surface 143 of the hook engaging portion 141 when the moving rail 20 is continuously drawn in (see Fig. 9). 10), and then rotates the rotary motion member 140 in a clockwise direction (FIG. 11). With this rotation, the rotary protrusion 147 of the rotary motion member 140 is the circular groove 134 of the guide groove 132. When the straight surface 148 of the rotation protrusion 147 is parallel to the straight groove 133 of the guide groove 132 by the rotational movement in the inside, the rotation protrusion 147 leaves the circular groove 134 and the straight groove It is in the position to be able to perform a linear motion along the (133). The side of the linear motion member 150 connected to the rotary motion member 140 is bound with the elastic spring 700 is extended. As a result, the movable member 165-that is, the linear movement member 150 and the rotary movement member 140-moves to the fully retracted position by the force of the elastic spring 700. In this case, the movable rail 20 Since the detachable protrusion 25 is caught by the first locking step 142, the drawer is automatically moved to the fully retracted position (Fig. 12). The piston formed in the linear motion member 150 during the movement to the fully retracted position. When the piston rod 195 of the damper 190 is inserted into the rod insertion groove 156 so that the damper 190 and the moving member 165 meet, the drawer is elastic spring 170 by the shock absorbing effect of the damper 190. Despite its large retraction force, it will automatically move to the full retracted position smoothly.

The withdrawal of the drawer takes place in the reverse order of the above process. When the drawer is withdrawn from the fully retracted position (Fig. 12), the detachable protrusion 25 of the movable rail 20 pulls the first latching jaw 142 and opens the elastic spring 170. Extending and moving to the withdrawal position (the direction opposite the arrow), the rotary protrusion 147 of the rotary motion member 140 reaches the circular groove 134 through the straight groove 133 (Fig. 11), and then the rotary protrusion ( 147 is rotated counterclockwise in the circular groove 133 (Fig. 10), the detachable protrusion 25 of the moving rail 20 is pulled out of the first locking jaw 142 of the hook locking portion 141 It continues to move to the position (Fig. 9). At this time, since the straight surface 148 of the rotary projection 147 is not parallel to the linear groove 133 of the guide groove 132, the rotary projection 147 is a circular groove 134 ), So that the elastic spring 170 is in an extended state and is ready for the next automatic retraction.

According to the present invention, the lower mounting slide, that is, the drawer, can be automatically moved to the fully retracted position. In addition, the shock absorbing force of the damper allows the drawer to be smoothly moved to the final retracted position to give the consumer a luxurious feeling.

Claims (6)

The housing 110 of the cover form consisting of a body portion 120 and the fixing portion 112 formed on both ends of the body portion, a moving member 165 consisting of a linear movement member 150 and a rotary movement member 140, Taper portion formed thinner than the spring fuselage portion near the both ends 172 of the spring And a damper 190 including an elastic spring 170 having a 174 and a body 192 having a front protrusion 194 and a piston rod 195 protruding from one side of the body 192. Body portion 120 of the housing 110 is (1) a damper seating portion consisting of a damper body insertion groove 121, a damper front protrusion insertion groove 122, and a damper piston rod insertion groove 123, (2) a first end surface 124, a second end surface 125, a first side surface 126, and a bottom surface 127, one side of which is an open groove-shaped moving member guide part, (3) includes a first spring binding portion 137 located at the side of the damper body insertion groove 121 and coupled to one side of the elastic spring 170, The bottom surface 127 of the movable member guide portion is formed with a guide groove 132 consisting of a straight groove 133 and a circular groove 134, The linear movement member 150 of the moving member 165 is composed of a rotary movement member coupling portion 162 and a body portion 151 having a binding hole 163, the guide groove on one side of the body portion 151 A second spring binding part 152 is formed to which the coupling protrusion 160 inserted into the 132 and the other side of the elastic spring 170 are coupled, and the sliding protrusion 155 is formed at the other side of the body 151. Is formed, the piston rod of the damper 190 in the body portion 151 of the lower side of the engaging projection 160 Piston rod insertion groove 156 is formed is (195) is inserted, The rotary motion member 140 of the movable member 165 has a rotary protrusion 147 having two straight surfaces 148 and two curved surfaces 149, and a rotary motion member coupling portion of the linear motion member 150. The slide movement rail 145 is formed with a rotating projection space 145 is formed, the binding projection 146 is inserted into the binding hole 163 of the (162), and the second sliding jaw 143 and the slide moving rail Hook hook portion 141 is coupled to the detachable protrusion 125 formed on one side of the 20, One side of the elastic spring 170 is the first spring fastening portion 137 of the body portion 120 of the housing 110, the other side is the second spring of the linear motion member 150 of the moving member 165 It is attached to the binding unit 152, the moving member 165 is automatically closed with a damper, characterized in that the lower mounting slide can be automatically closed by reciprocating movement along the moving member guide of the housing 110. Device. According to claim 1, Overturn prevention jaw 135 is formed in the circular groove 134 of the guide groove 132 of the movable member guide portion to prevent excessive rotation of the rotary motion member 140 of the movable member 165. Automatic closing device with a damper characterized in that. According to claim 1, Automatic damping device with a damper, characterized in that the second locking step (143) of the rotary movement member 140 of the moving member 165 is formed thicker than the first locking step (142). The automatic closing device of claim 3, wherein an inclined surface 144 is formed at one side of the first locking step 142. According to claim 1, Fixed parts formed on both ends of the body portion 120 of the housing 110 Automatic closure device with a damper, characterized in that 112 comprises a fixing groove 114 and the fixing projection (113). According to claim 5, Damper is attached to the automatic closing device, characterized in that the central fixing groove 116 and the fixing projections 117 is formed in the body portion 120 of the housing (110).

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