KR20100006176A

KR20100006176A - Self-closing apparatus having a damper

Info

Publication number: KR20100006176A
Application number: KR1020080066289A
Authority: KR
Inventors: 고선용
Original assignee: 고선용
Priority date: 2008-07-09
Filing date: 2008-07-09
Publication date: 2010-01-19

Abstract

The present invention relates to an automatic closing device with a damper operating by air pressure.

The automatic closing device is composed of a hollow rectangular fuselage part, a moving block reciprocating along the fuselage part, and an elastic spring on one side of which is fixed to the slide fixing member on the other side of the moving block. Is attached. The body portion has a damper binding portion formed at one end, a reciprocating portion in which the moving block reciprocates, and a binding groove formed at one side of the lower surface. The reciprocating part consists of an upper reciprocating part and a lateral reciprocating part. The moving block is composed of a first moving block and a second moving block.

The automatic closing device according to the present invention operates relatively simply and stably.

Description

Self-closing apparatus having a damper

The present invention relates to an automatic closing device with a damper, and more particularly, to an automatic closing device having a damper operating by air pressure and having a relatively simple configuration and operating stably.

A slide is a device attached to a drawer such as a desk or furniture to allow the drawer to slide relative to the desk or furniture. Recently, an automatic closing device for automatically moving a drawer to a fully closed state has been developed and used when a slide is moved to a fully closed state as the slide is advanced.

The automatic closing device is normally moved to the fully closed state by the elastic force of the spring, and when the complete closing position is reached, noise is generated by the collision between the components of the automatic closing device. To eliminate these noises, automatic closure devices with dampers have been developed to mitigate collisions between components. Examples of the automatic closing device with a damper include Korean Patent Application Nos. 2006-0022917, 2006-0022919, 2006-0016863, and 2005-0107269. The dampers used in these known techniques use expensive hydraulic dampers, or the automatic closing device itself is complicated in construction. In addition, since the automatic closing device body has a thin and long shape, the automatic closing device is distorted by the elastic force of the spring.

It is an object of the present invention to provide an automatic closing device to which a damper operated by air pressure is attached and which is relatively simple in configuration and operates stably.

To this end, the present invention is composed of a hollow rectangular pillar-shaped fuselage, a moving block reciprocating along the fuselage, and one side is composed of an elastic spring that is coupled to the movable block and the other side to the slide fixing member, on one side of the fuselage Provided is an automatic closing device to which a damper operated by pneumatic pressure is attached.

The body portion includes a damper binding portion formed at one end, a reciprocating portion for reciprocating movement of the moving block, a fixing portion for fixing the body portion to the slide fixing member, and a binding groove formed at one side of the bottom surface.

The reciprocating part consists of an upper reciprocating part and a lateral reciprocating part. The upper reciprocating portion formed on the upper surface of the body portion has a rectangular groove shape, and the side reciprocating portion formed on both sides of the body portion has a shape of an elongated groove having a straight groove and a curved groove.

The moving block is composed of a first moving block and a second moving block. The first moving block has side protrusions formed at both sides of the block, a lower groove formed at the lower surface of the block, the lower groove being bound to the lower wall of the linear groove, a damper end coupling groove formed at one end of the block, and formed at the center of the block. And a coupling rod formed on one side of the central groove, and the second movable block is formed on the first lower binding portion and the second lower binding portion formed on the lower surface of the block, and the upper surface of the block. It includes a first upper protrusion and a second upper protrusion.

The first lower binding portion of the second movable block is rotatably coupled to the coupling rod of the first movable block such that the first movable block and the second movable block form a movable block. The lower groove of the first movable block is bound to the lower wall of the linear groove of the fuselage part, so that the movable block can reciprocate along the reciprocating portion of the fuselage part.

The second lower binding portion of the second moving block is detachably attached to the binding groove of the body portion. In the state where the first lower binding part and the binding groove are bound, the slide is in an open state and the spring which is bound to the side protrusion of the first moving block is in an extended state. When the binding between the second lower binding portion and the binding groove is released, the slide is automatically moved to the closed state by moving the moving block to the closed position of the slide by the elastic force of the spring.

In addition, the automatic closing device includes a release block that is fixed to one side of the slide moving member. The release block has a release groove that detachably couples with the second upper protrusion of the second moving block, and when the release block pushes the first upper protrusion to release the binding between the second bottom protrusion and the binding groove, the release groove is formed in the second moving block. Combine with two upper projections.

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

1 is a perspective view showing that the automatic closing device is fixed to a slide according to the present invention.

The automatic closing device is a device that is attached to the fixing member 2 of the slide 1 to automatically move the moving member 4 of the slide to the fully retracted position. The slide 1 shown in FIG. 1 is a three-stage foldable slide having a fixing member 2, a moving member 4, and an intermediate member 3 positioned between the fixing member and the moving member. It can also be used for two-stage folding slides without intermediate members. Each member 2, 3, 4 can slide relative to each other by a ball retainer 5 positioned between these members.

The automatic closing device 10 is composed of a body portion 100, a moving block 200, and an elastic spring 300, the damper 500 is attached to one side of the automatic closing device.

The damper 500 has a configuration of a typical pneumatic damper including a piston 530 located inside the damper body 510 and a piston rod 520 extending from the piston, as shown in FIG. The piston 530 is composed of a first end member 531 and a second end member 534, and a first intermediate member 532 and a second intermediate member 533 positioned between these members. The member 531 and the second end member 534 are connected to each other. That is, a relatively rigid plastic is formed to have a cylindrical shape, and the region in which the intermediate members 532 and 533 are located is formed to have a smaller radius of the cylinder than the region of the end members 531 and 534 so that the intermediate members 532 and 533 are formed in this region. When positioned, they are formed to have approximately the same cylinder radius as a whole. The intermediate members 532 and 533 may be formed of a soft material and may be easily positioned between the end members 531 and 534 by stretching the members. A first flow groove 536 and a second flow groove 538 are formed in the first end member 531 and the second intermediate member 533, respectively. Accordingly, when the piston 530 moves in the compression direction, the compressed air of the compression unit 539 flows through the flow grooves 536 and 538 when passing through the first end member 531 and the second intermediate member 533. And when passing through the second end member 533 and the first intermediate member 532 portion flows through the gap between these members and the damper body (510). In this way, the compressed air of the compression unit 539 is gradually released to damp the load transmitted through the piston rod 520.

The damper 500 according to the present invention has a cylindrical end-type binding portion 540 at the piston rod side damper end separately from the pneumatic damper structure as described above, and a tip protrusion 550 at the end of the piston rod. Has The tip binding portion 540 has a size that can be inserted into the hollow cylindrical damper binding portion 120 (see FIG. 3) formed on one side of the automatic closing device body part 100. A tip protrusion 552 is formed at the tip of the tip protrusion 550, and the tip protrusion 552 is a damper tip coupling groove 216 (see FIG. 4) formed at one end of the first moving block 210. Is inserted. The tip projection, once inserted into the damper tip engaging groove 216, does not escape from the engaging groove 215 along the piston rod direction.

3 is a perspective view of a body part constituting the automatic closing device according to the present invention.

The fuselage part 100 has two side surfaces 104, an upper surface 102, and a bottom surface 106, and has a hollow (hollow) square pillar shape.

At one end of the body portion 100, a damper binding portion 120 having a shape and a size into which the tip binding portion 540 of the damper 500 described above may be inserted is formed.

The central portion of the body portion 100 is formed with a reciprocating portion 130 to which the moving block 200 to be described later reciprocates. Reciprocating portion 130 is composed of the upper reciprocating portion 140 and the side reciprocating portion 150. The upper reciprocating portion 140 is located on the upper surface 102 of the body portion is formed in a substantially rectangular groove shape. At one end of the upper reciprocating motion 140, a coupling groove 144 into which a coupling protrusion 260 (see FIG. 6) is formed, which is formed at one side of the first upper protrusion 256 of the second moving block 250 to be described later. Is formed. Side reciprocating portion 150 is located on both sides 104 of the body portion has a form of elongated groove, the elongated groove is composed of a curved groove 156 and a linear groove 154 extending therefrom. A large groove 158 is formed at the end of the linear groove 154, the groove 158 is a reciprocating portion to bind the moving block 200 to be described later to the reciprocating portion 130 of the body portion 100. It facilitates this during insertion.

The bottom surface 106 of the body portion 100 is formed with a bottom groove 184 on one side and a binding groove 180 is formed on the other side. The bottom groove 184 is intended to reduce the material during the injection molding of the body portion 100 and is not an essential configuration for the action of the body portion 100, but in some cases may be necessary in manufacturing to avoid the occurrence of the sliding die. have. The binding groove 180 serves to couple and separate with the second lower binding portion 254 of the second moving block 250 to be described later, which will be described in more detail later.

The automatic closing device is attached to the fixing member 2 of the slide 1 as described above, for this purpose, a fixing portion is formed in the body portion 100. The fixing portion may be in any form in which the automatic closing device can be attached to the slide fixing member 2.

3 illustrates a coupling groove 162 formed at one end of the body part as a fixing part. In the embodiment shown in FIG. 3, the front face 106 is formed at one end of the fuselage part 100 at a height lower than both sides 104, and the front elastic part 160 is located in front of the front face 106. ) Is formed. All parts of the automatic closing device except for the spring are manufactured by injection molding using a plastic material, and when the front elastic part 160 is formed as shown in FIG. 3, other objects or members are the body part 100. Even if it collides with, it absorbs the shock to some extent. The coupling groove 162 is formed in a groove shape in which a portion of the front elastic portion 160 is cut in the center portion of the front elastic portion 160. As shown in FIG. 1, the body part 100 is fixed to the slide fixing member 2 by inserting a fixture 9 made of a protrusion by punching a portion of the slide fixing member 2 in the groove 162. In the illustrated embodiment, the coupling groove 162 is formed in the front elastic portion 160, but the front elastic portion 160 may be omitted and may be formed directly in the front surface 106.

In the illustrated embodiment, the fixing ends 164 and 166 are formed at both ends of the bottom surface 106 of the fuselage body with another fixing part. The fixed ends 164 and 166 have protrusions protruding from the body bottom surface 106 (see FIGS. 3 and 9), and the fixed ends 164 and 166 can be inserted into the slide fixing members 2 at appropriate positions. A groove (not shown) is formed by punching so that the fixing ends 164 and 166 are inserted into the groove so that the body portion 100 is fixed to the slide fixing member 2.

The moving block 200 according to the present invention is composed of the first moving block 210 and the second moving block 250, and is made by injection molding of plastic, similar to the body part 100.

4 and 5 are top and bottom perspective views of the first moving block, respectively, and FIG. 6 is a perspective view of the second moving block.

The first moving block 210 is a block having a rectangular pillar shape as a whole, and side protrusions 212 are formed at both sides of the block. One side of the spring 300 is attached to the side protrusion 212 as shown in FIG.

The lower groove 214 is formed on the lower surface of the first moving block 210. As shown in FIG. 5, the lower groove 214 is a groove having a U-shaped cross section and is attached to the lower wall 155 of the body portion linear groove 154. When the lower wall 155 is inserted into the lower groove 214 and bound, the first moving block 210 can reciprocate along the side reciprocating portion 150 having the elongated groove shape.

A damper front end coupling groove 216 is formed at one end of the first moving block 210, and the damper front end coupling groove 216 is a groove to which the front end protrusion 552 of the damper 500 is coupled as described above. .

A central groove 218 is formed at the center of the first moving block 210, and a coupling rod 220 is formed at one side of the central groove 218. Coupling rod 220 has a rod shape and is located close to the direction toward the opening of the lower groove 214, as can be seen in FIGS.

As shown in FIG. 6, the second moving block 250 is a polygonal block, and a first lower binding part 252 and a second lower binding part 254 are formed on a lower surface of the block. The first lower binding portion 252 is a portion that binds to the coupling rod 220 of the first moving block 210 described above, and the coupling rod 220 is inserted into the opening portion 253 to be seated. It is a cylindrical groove having. The second lower binding portion 254 is a portion that binds to the binding groove 180 formed on the bottom surface 106 of the fuselage portion described above, and the tip protrusion 255 is formed to facilitate the binding, and is easily separated upon separation. It is formed to be a smooth curved surface in cross section.

The first upper protrusion 256 and the second upper protrusion 258 are formed on the upper surface of the second moving block 250. The first upper protrusion and the second upper protrusion 256 and 258 are spaced apart from each other, and an upper space portion 259 is formed therebetween. The first upper protrusion 256 is preferably formed in a rectangular pillar shape, the coupling protrusion 260 is formed at one side thereof. Coupling protrusion 260 is coupled to the coupling groove 144 formed at one end of the upper reciprocating motion 140, for this purpose, the coupling protrusion 260 can be easily inserted into the coupling groove 144 and can be separated And have a size. On the other hand, the second upper protrusion 258 is preferably formed of the inclined surface 270.

A guide protrusion 262 is formed on the side surface of the second moving block 250, more specifically, the side surface of the portion where the first upper protrusion 256 is located. Guide protrusion 262 is formed in a cylindrical shape. The guide protrusion 262 is positioned on the lower wall 155 of the body portion linear groove 154 (see FIGS. 9 to 11) to guide the second moving block reciprocating along the side reciprocating portion 150. Play a role.

8 is a perspective view of a movable block of the automatic closing device according to the present invention, in particular a release block that is detachably coupled to the second movable block, which is fixed to the slide moving member, and the release block is also injection molded from plastic. To prepare.

The release block 400 is a block having a rectangular shape as a whole, and a release groove 402 is formed at the center of the release block. The release block 400 is fixed to the end of the inside of the slide moving member 4 (side toward the fixing member of the slide) (see FIG. 1) by suitable means, and in the illustrated embodiment, the moving member through the rivet 410. It shows fixed in (4). A reinforcing part 404 is formed at one end of the release block 400. When the release block 400 is operated, the release block 400 collides with the second moving block of the mobile block, and the reinforcement unit 404 serves to provide durability against the release block.

Hereinafter, the coupling relationship of each member will be described.

First, the coupling rod 220 of the first moving block 210 is inserted through the opening portion 253 of the first lower binding portion 252 of the second moving block 250, so that the first lower binding portion 252 is inserted. By seating in the first moving block 210 and the second moving block 250 is combined to form a moving block 200 (see Fig. 7). The second moving block of the moving block may rotate by using the coupling rod 220 of the first moving block as the rotation axis. When the first moving block and the second moving block are combined, the rear block 264 (see FIG. 6) of the second moving block 250 is moved to the center groove 218 (see FIG. 4) of the first moving block 210. Inserted and positioned. In FIG. 7, the rear block 264 is shown to fit snugly in the center groove 218, but the rear block 264 is formed to have a smaller size than the center groove 218 so that the second moving block is coupled to the first moving block. When the rotational movement around the rod 220 ensures a smooth rotational movement.

Next, the moving block 200 coupled in the above-described state is bound to the side reciprocating movement unit 150 is formed in the center of the body portion 100. This binding is such that the lower groove 214 of the first moving block 210 having a U-shaped cross section is coupled to the lower wall 155 of the body portion linear groove 154, that is, the lower wall 155 is connected to the lower groove ( 214) to complete the insertion. When the lower groove 214 of the first moving block is bound to the lower wall 155 of the body portion linear groove, the first moving block 210 can reciprocate along the side reciprocating portion 150 having an elongated groove shape. Therefore, the moving block 200 may reciprocate along the reciprocating unit 130. As illustrated in FIG. 1, the movable block 200 includes a portion of the first upper protrusion 256 and the second upper protrusion 258 of the second movable block 250 having a rectangular groove-shaped upper reciprocating motion 140. ) And reciprocates in the protruding state.

Substantially binding of each of the above-described members is arranged after the first moving block and the second moving block in the separated state in the transverse direction inserted into the large groove 158 of the fuselage portion 100 is located in the reciprocating portion 130 and then It is preferable to carry out by combining the one moving block and the second moving block. This is because rather than coupling the moving block to the reciprocating portion of the fuselage with the first moving block and the second moving block to form a moving block, they are placed in the reciprocating motion through the large groove 158 in a separated state. This is because it is easy to combine.

Next, as shown in FIG. 1, one end of the spring 300 is attached to the side protrusion 212 of the first moving block 210. To this end, one end of the spring 300 is formed in a ring shape to be coupled to the side protrusion 212. The other end of the spring 300 is bound to the spring fixing portion 350 formed by punching the slide fixing member 2 in the form of a protrusion. In the illustrated embodiment, a groove is formed in the center of the spring fixing part 350, and the spring end is inserted into the groove. To this end, the spring end to be bound to the spring fixing part 350 is formed to be an elongated spring end in which a concave portion is formed in the vicinity of the end, but may be formed in a ring shape to be fixed to the spring fixing part 350 by walking.

Next, the fuselage binding portion 540 of the damper 500 is inserted into the damper binding portion 120 by the fuselage portion 100, and the tip protrusion 552 of the damper is one end of the first moving block 210. The damper is attached to the automatic closing device by inserting it into the damper tip coupling groove 216 formed in the damper tip.

In this way, the automatic closing device with a damper is attached to the fixing member 2 of the slide 1 by using the fixing part of the automatic closing device described above. The lower end of the damper 500 (the opposite end of the piston rod) is placed in close contact with a plate-shaped protrusion (not shown) formed by punching a portion of the slide fixing member. This plate-shaped protrusion serves to support the damper when the damper acts as a damper under the axial force.

On the other hand, the intermediate member 3 and the moving member 4 of the slide 1 have grooves 7 of appropriate size and shape at each end so that these members do not interfere with the automatic closing device 10 when sliding. 8) (see FIGS. 1 and 8) is formed.

9 to 11 will be described the operation relationship of the automatic closing device according to the present invention. 9 to 11 illustrate only parts necessary for describing an operation relationship for convenience of description.

9 is an explanatory view showing that the moving member of the slide moves from the pulled out state to the pulled in state (retracted direction is indicated by an arrow). ) Omit the city for the sake of convenience-shown only. At this time, the second moving block 250 of the automatic closing device moving block is axially rotated with respect to the first moving block 210, and the tip protrusion 255 of the first moving block 210 is fastened to the fuselage 100. 9, the second lower binding part 254 is attached to the binding groove 180 of the fuselage part 100 by being positioned to protrude through the groove 180 (not shown in FIG. 9 and see FIG. 3). . In this state, the spring 300 (not shown in the operation state explanatory drawing) is in the extended state by binding to the side projection 212, the damper 500 (not shown) also the piston rod 520 is the maximum It is in the withdrawn state.

When the release block 400 (ie, the movable member of the slide) is moved to the retracted position, the end of the release block meets the first upper protrusion 256 of the second movable block 250 to introduce the protrusion 256. Will be pushed in the direction. By the pushing force, the second moving block 250 is axially rotated about the coupling rod 220 of the first moving block 210, and during this axis rotation, the second lower binding part of the second moving block 250 is rotated. 254 is separated from the binding groove 180 of the body portion (100). When the second lower binding part 254 of the second moving block 250 is separated from the binding groove 180 of the body part 100, the spring (b) attached to the side protrusion 212 of the first moving block 210 ( 300 automatically moves the moving block-the first moving block 210 and the second moving block 250-along the straight groove 154 of the side reciprocating portion 150 of the fuselage part while restoring to its original length. .

10, as described, the mobile block automatically moves in a state in which the second lower binding part 254 of the second moving block 250 of the automatic closing device moving block is separated from the binding groove 180 of the fuselage part 100. It is explanatory drawing which shows the movement to a pulling direction.

Meanwhile, when the second lower binding part 254 of the second moving block 250 is separated from the binding groove 180 of the body part 100, the second upper protrusion 258 of the second moving block is the release block. It is inserted into the release groove 402 and the hook portion 406 of the release block is to be seated in the upper space portion 239 of the second moving block. Since the release block 400 is fixed to the moving member (not shown) of the slide, the moving block automatically moves in the pulling direction means that the slide moving member automatically moves in the pulling direction.

The moving block moving in the inlet direction by the restoring force of the spring 300-the first moving block 210 and the second moving block 250-is the engaging projection 260 of the second moving block 250 is the upper body portion It is inserted into the coupling groove 144 (see FIG. 3) formed at one end of the reciprocating part 140 and moves in the pulling direction until it stops. FIG. 11 is an explanatory view showing a state in which the moving block is stopped by inserting the coupling protrusion 260 of the second moving block 250 into the coupling groove 144 of the upper reciprocating portion 140 of the fuselage part. Is a perspective view showing. The slide moving member in this state is in a fully retracted position.

Through the above process, the automatic closing device acts to automatically move the drawer to the full retracted position even if the user does not move the drawer to the fully retracted position, thus enhancing the convenience of the drawer user.

On the other hand, the process of placing the automatic closing device in the withdrawal state while the drawer, i.e. the moving member (the release block in the above description) of the slide, moves in the withdrawal direction (the direction opposite to the arrow shown in the illustration) in the reverse order of the above procedure. Is done.

In the above described embodiments of the present invention with reference to the accompanying drawings, it will be apparent to those skilled in the art that the present invention is not limited thereto and various modifications are possible.

1 is a perspective view showing that the automatic closing device according to the present invention is attached to the slide.

FIG. 2 is a perspective view illustrating a partially cut state of a damper used in the automatic closing device shown in FIG. 1.

Figure 3 is a perspective view of the fuselage of the automatic closing device according to the present invention.

Figure 4 is a top perspective view of the first moving block used in the automatic closing device according to the present invention.

FIG. 5 is a bottom perspective view of the first moving block shown in FIG. 4.

6 is a perspective view of a second moving block used in the automatic closing device according to the present invention.

7 is a perspective view illustrating a coupling state of the first moving block and the second moving block.

8 is a perspective view of a release block fixed to one side of a slide moving member.

9 to 11 are diagrams illustrating an operating state of the automatic closing device according to the present invention.

Claims

In the automatic closing device for automatically closing the moving member of the slide including the fixed member and the moving member,

The damper is attached to the automatic closing device,

The automatic closing device is a hollow body 100 having a hollow rectangular columnar shape, a movable block 200 reciprocating along the fuselage, and one side of which is an elastic spring 300 which is fastened to the slide fixing member on the other side of the movable block. Is composed,

The body part 100 includes a damper binding part 120 formed at one end, a reciprocating part 130 in which the moving block reciprocates, a fixing part for fixing the body part to the slide fixing member, and one side of the bottom surface 106. It includes a binding groove 180 is formed,

Reciprocating portion 130 is composed of the upper reciprocating portion 140 and the side reciprocating portion 150, the upper reciprocating portion 140 formed on the upper surface 102 of the body portion has a rectangular groove shape, both sides of the body portion Side reciprocating portion 150 formed in the 104 has the form of an elongated groove having a straight groove 154 and a curved groove 156,

The moving block 200 includes a first moving block 210 and a second moving block 250, wherein the first moving block 210 has side protrusions 212 formed on both sides of the block, and a lower surface of the block. A lower groove 214 formed at the lower wall 155 of the linear groove 154, a damper front end coupling groove 216 formed at one end of the block, a central groove 218 formed at the center of the block, And a coupling rod 220 formed at one side of the central groove, and the second movable block 250 includes the first lower binding portion 252 and the second lower binding portion 254 formed on the lower surface of the block. And a first upper protrusion 256 and a second upper protrusion 258 formed on an upper surface of the block,

The first lower binding part 252 of the second moving block 250 is rotatably coupled to the coupling rod 220 of the first moving block 210 so that the first moving block 210 and the second moving block ( 250) Move Block

And the lower groove 214 of the first movable block 210 is bound to the lower wall 155 of the linear groove of the fuselage 100, thereby moving the block 200 of the fuselage 100. Can reciprocate along the reciprocating unit 130,

The second lower binding part 254 of the second moving block 250 is detachably attached to the binding groove 180 of the fuselage part 100, but the first lower binding part 254 and the binding groove 180 are In the bound state, the slide is in an open state, and the spring 300 bound to the side protrusion 212 of the first moving block is in an extended state, and is bound between the second lower binding part 254 and the binding groove 180. When the release is released by the elastic force of the spring 300, the moving block is moved to the closed position of the slide, the slide is automatically closed device with a damper, characterized in that the slide is automatically moved to the closed state.

The method of claim 1, wherein the automatic closing device further comprises a release block 400 is fixed to one side of the slide moving member, the release block 400 is the second upper projection 258 of the second movable block (250) And a release groove 402 detachably coupled to the release block 400 to release the binding between the second lower protrusion 254 and the binding groove 180 by pushing the first upper protrusion 256. ) Is coupled to the second upper protrusion 258 of the second moving block 250, the damper is attached automatic closing device.

The method of claim 1, wherein the coupling groove 144 is formed at one end of the upper reciprocating portion 140 and the coupling protrusion 260 is formed at one side of the first upper protrusion 256 of the second moving block 250. Automatic closure device with a damper, characterized in that the engaging projection 260 is inserted into the coupling groove 144 in the closed state of the slide.

The method of claim 1, wherein the large groove 158 is formed at the end of the linear groove 154 of the side reciprocating portion 150 to fasten the first moving block 210 to the reciprocating portion 130 of the body portion 100. Automatic closing device with a damper, characterized in that for ease of insertion into the reciprocating motion.

The damper binding portion 120 of the body portion 100 has a circular groove shape, and the damper 500 including a piston and a piston rod has a damper binding portion 120 at a piston rod side damper end. In addition, the damper is a pneumatic damper, and the damper has a front end protrusion 550 that engages with the damper front end coupling groove 216 of the first moving block 210 as an air pressure damper. Automatic closing device with damper.

The damper of claim 1, further comprising: fixed ends 164 and 166 formed at both ends of the bottom surface of the fuselage part, and coupling grooves 162 formed at one end of the fuselage part. Automatic closing device attached.