KR100841801B1 - Apparatus for damping for sliding doors - Google Patents

Abstract

The present invention relates to a shock absorber for a sliding door, which is fixedly installed on the rail (2) of the door housing and formed with a guide hole (11) penetrated up and down along a longitudinal direction and having a spring hook (12) at one end thereof. Main body 10; It is arranged to be slidably on the bottom surface of the main body 10, is guided in the longitudinal direction caught by the engaging portion 6a of the hook (6) provided in the door slider 4 of the door in the state penetrating the guide hole (11) A first guide member 20 having a guide protrusion 21 formed therein and a spring hook 22 formed on one side thereof; A second guide member 30 sliding integrally with the first guide member 20 and having a damper mounting portion 31 provided at one side thereof; The locking jaw 41a is coupled to the bottom of the main body 10 while supporting the bottoms of the first and second guide members 20 and 30, and the guide protrusion 21 of the main body 10 is guided. Support member 40 having an auxiliary guide hole 41 is formed; A damper having an outer circumferential surface of the cylinder 51 fixedly coupled to the damper mounting portion 31 of the second guide member 30, and an end portion of the rod 52 which is projected outwardly from the cylinder 51 is fixed to the main body 10. 50); And a spring 60 caught by the spring hanger 12 of the main body 10 and the spring hanger 22 of the first guide member 20 to allow the first guide member 20 to slide with elasticity. It is configured by. Therefore, it is possible to prevent the closed door from being opened by the door housing by itself and to minimize the amount of impact that is suddenly collided with the door housing when the door is closed, thereby preventing collision noise and damage of the door.

Shock absorber for sliding door, rail, door slider, rod, spring

Description

Shock absorber for sliding doors {Apparatus for damping for sliding doors}

1 is a perspective view showing a shock absorber for a sliding door according to an embodiment of the present invention.

Figure 2 is an exploded perspective view showing a shock absorber for a sliding door according to an embodiment of the present invention.

Figure 3 is a schematic diagram showing the position of the guide projection of the door open state of the sliding door buffer according to an embodiment of the present invention.

Figure 4 is a schematic diagram showing the position of the guide projection of the door closed state of the shock absorber for a sliding door according to an embodiment of the present invention.

** Description of the symbols for the main parts of the drawings **

2: rail 4: door slider

6: hook 6a: hook

6b: inner curved surface 10: main body

11: guide hole 12: spring hook

13: spring hanger 14: spring seat

15: spring mounting portion 16: rod fixing part

20: first guide member 21: guide projection

22: spring hook 23: hinge shaft

30: second guide member 31: damper mounting portion

32: spring hook 33: hinge shaft groove

40: support member 41: assistant guide

41a: Jamming jaw 41b: Inner curved surface

50: damper 51: cylinder

51a: small diameter part 51b: large diameter part

52: rod 53: fluid resistor

60: spring 62: spring

The present invention relates to a shock absorber for a sliding door, and more particularly, to prevent the closed door from being opened by itself, and to minimize the amount of impact that is suddenly collided with the door housing when the door is closed. The present invention relates to a shock absorber for a sliding door to prevent the occurrence of this.

In general, the sliding door refers to a device for installing the rail and the slider between the door and the door housing to open and close the door smoothly.

In addition, a door opening preventing device may be installed to prevent the door from being opened by a collision repulsive force with the door housing when the door is closed between the door and the door housing of the sliding door or by itself after the door is closed.

However, such a door opening preventing device of the prior art only has a function to prevent the door from opening after the door is closed, and there is no shock absorbing device for cushioning the amount of collision with the door housing when the door is closed. In addition, there was a problem that damage may occur to the door and the door housing due to such a collision.

The present invention has been made to solve the above problems, and prevents the closed door from opening itself by catching the door housing, as well as minimizing the impact amount of the door housing when the door is closed, the impact noise and damage of the door is generated. It is an object of the present invention to provide a shock absorber for a sliding door that can be prevented.

The shock absorbing device for a sliding door of the present invention for achieving the above object is fixed to the rail of the door housing and formed with a guide hole penetrated up and down along the longitudinal direction and the spring hook is provided at one end; The first guide is arranged to be slidably on the bottom surface of the main body, the guide protrusion is guided in the longitudinal direction by the hook portion of the hook provided in the door slider of the door in the state of passing through the guide hole, and the spring hook is formed on one side. absence; A second guide member sliding integrally with the first guide member and having a damper mounting portion at one side thereof; A support member coupled to a bottom surface of the main body while supporting the bottom surfaces of the first and second guide members and having an auxiliary guide hole formed at one end thereof so that the guide protrusion of the main body is guided; A damper to which an outer circumferential surface of the cylinder is fixedly coupled to the damper mounting portion of the second guide member, and an end of the rod which emerges from the cylinder to the outside is fixed to the main body; And a spring that is hung on the spring hook of the main body and the spring hook of the first guide member so that the first guide member slides with elasticity.

In addition, in the shock absorber for the sliding door according to the present invention, when the door is opened, the guide protrusion is guided in the state of being caught by the hook portion, and guided to the auxiliary guide hole catching jaw of the support member, When the door is closed and the door is closed, the guide protrusion is pushed by the inner curved surface of the hook, and the position is moved from the locking step to the hooking part of the hook again, and the hooking part of the hook is slid with the hook in the state of being caught in the locking part. It is preferable that the locking step of the support member and the bent in the opposite direction to each other.

In addition, in the shock absorber for the sliding door according to the present invention, it is preferable that the spring hook is formed on the side adjacent to the damper mounting portion of the second guide member, and the spring hook is formed on the corresponding body.

Further, in the shock absorber for a sliding door according to the present invention, the damper mounting portion is preferably in the form of a cylindrical tube surrounding the outer peripheral surface of the damper cylinder.

In addition, in the shock absorber for a sliding door according to the present invention, the damper is coupled to the damper mounting portion by a force indentation method, the inner diameter of the damper mounting portion of the damper cylinder so that the small diameter portion is formed on the inner peripheral surface of the damper corresponding to the damper mounting portion It is preferable to form smaller than the outer diameter.

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

As shown in Figures 1 to 4, the shock absorber for a sliding door according to an embodiment of the present invention is the main body 10 is fixedly installed on the rail (2) of the door housing, and the bottom surface of the main body 10 Sliding speed of the first and second guide members 20 and 30 that are slidably installed, the support member 40 supporting the bottoms of the first and second guide members 20 and 30, and the door slider 4. The damper 50 and the first guide member 20 to control the configuration has a configuration including a spring 60 to slide with elasticity.

The main body 10 has a guide hole 11 fixedly installed on the rail 2 of the door housing and penetrated up and down along a longitudinal direction, and spring hooks 12 and 13 are provided at both ends of one end, respectively. It is.

And, in front of the spring hanger (12, 13) is provided with a spring seating portion (14, 15) for allowing the spring (60, 62) to be stably seated, respectively.

In addition, a rod fixing part 16 is formed on the bottom of the main body 10 so that the end of the rod 52 of the damper 50 is caught and fixed.

The first guide member 20 is slidably disposed on the bottom surface of the main body 10, and the hooking portion of the hook 6 provided in the door slider 4 of the door in a state of passing through the guide hole 11 ( 6a) is provided with a cylindrical guide projection 21 is guided in the longitudinal direction and the spring hook 22 is formed on one side.

The second guide member 30 is integrally slid with the first guide member 20 and a damper mounting portion 31 is provided at one side, and the spring hooks of the main body 10 are adjacent to the damper mounting portion 31. A spring hanger 32 corresponding to 13 is formed.

In addition, the damper mounting portion 31 of the second guide member 30 has a cylindrical shape surrounding the outer circumferential surface of the cylinder 51 of the damper 50, in particular, the damper 50 is a damper mounting portion ( The inner diameter of the damper mounting portion 31 is coupled to the damper mounting portion 31 so that the small diameter portion 51a is formed on the inner circumferential surface of the cylinder 51 of the damper 50 corresponding to the damper mounting portion 31. It is formed smaller than the outer diameter.

The small diameter portion 51a allows the fluid resistor 53 in the cylinder 51 to receive the large resistance of the fluid in the small diameter portion 51a, which is the center portion of the cylinder 10, thereby allowing the rod 52 to move slowly. The external force acting as a) is alleviated, and the large diameter portion 51b, which is both ends of the cylinder 51, receives the resistance of the fluid so that the rod 52 can be moved quickly so that the fluid resistor 53 is provided at both ends. This allows the rod 52 to be operated quickly while making the fluid less resistant.

That is, at both ends, since the external force applied to the rod 52 is already exhausted while passing through the small diameter portion 51a, even if the resistance of the fluid falls, the external force becomes weak so that a sufficient buffering effect can be obtained with only the resistance of the small fluid. Will be.

Meanwhile, the first and second guide members 20 and 30 are structured to be separated from each other, that is, the first guide member 20 has a hinge shaft 23 formed therein and corresponds to the second guide member. Hinge shaft grooves 33 are formed in the 30 so that they are hinged to each other so that the first guide member 20 is hinged relative to the second guide member 30.

The support member 40 is coupled to the bottom of the body 10 in a state of supporting the bottoms of the first and second guide members 20 and 30 so that the guide protrusions 21 of the main body 10 are guided and caught. It has a plate shape having an auxiliary guide hole 41 formed with a locking step 41a at one end.

Here, the locking jaw 41a of the auxiliary guide hole 41 is bent to have an inner curved surface 41b that curves to the left so that the guide protrusion 21 is temporarily caught at one end and the movement is stopped.

On the other hand, the locking portion 6a of the hook 6 of the door slider 4 corresponding to the locking jaw 41a of the auxiliary guide hole 41 is curved in the opposite direction to the locking jaw 41a. It is bent to have 6b.

With this structure, when the door is opened, the guide protrusion 21 is guided in the state of being caught by the catching portion 6a of the hook 6, and then to the auxiliary guide hole 41 of the supporting member 40. It is guided and caught by this latching jaw (41a) and at the same time is released from the catching portion (6a) of the hook 6, when the door is closed, the guide projection 21 is pushed back by the inner curved surface 6b of the hook (6) The position shifts from the locking step 41a to the locking part 6a of the hook 6 and slides together with the hook 6 in a state of being caught by the locking part 6a.

The damper 50 is forcibly pressed into the damper mounting portion 31 of the second guide member 30 so that the outer circumferential surface of the cylinder 51 is fixedly coupled and is provided with a rod 52 that emerges from the cylinder 51 to the outside. The small diameter part 51a is formed in the inner peripheral surface corresponding to the damper mounting part 31 among the inner peripheral surfaces of the cylinder 51. As shown in FIG.

The springs 60 and 62 are spring hangers 12 of the main body 10, spring hangers 22 of the first guide member 20, spring hangers 13 of the main body 10, and the second guide member 30. The first and second guide members 20 and 30 are hooked to the spring hanger 32, respectively, and have a coil spring shape so as to smoothly slide with elasticity.

In the shock absorber for the sliding door according to the present invention, the damper 50 is mounted on the damper mounting portion 31 of the second guide member 30, and the hinge shaft 23 of the first guide member 20 is formed. 2 is coupled to the hinge shaft groove 33 of the guide member 30, the first and second guide members 20 and 30 are coupled to the main body 10 to cover and support the support member 40 on its bottom surface. Connecting the spring (60, 62) to the spring hanger of each member to complete the assembly of the shock absorber.

After the shock absorber is assembled and fixed to the rail housing 2 end of the door housing, the door slide 4 slides on the rail 2 so that the door closes and slides slowly. .

That is, when the door is closed, the guide protrusion 21 is pushed by the inner curved surface 6b of the hook 6 which is slid, and is moved from the locking jaw 41a to the locking portion 6a of the hook 6 to be locked. It is slid with the hook 6 in a state of being caught in the portion 6a and is gradually closed by the damper 50.

In this closing process, the guide protrusion 21 maintains a state of being caught by the hooking portion 6a of the hook 6, thereby preventing the door from opening on its own even after the door is closed.

Then, when the door is opened, the guide protrusion 21 is guided in a state of being caught by the engaging portion 6a of the hook 6, and then the inner curved surface of the auxiliary guide hole 41 of the support member 40 is curved. The door slider 4 including the hook 6 is guided to the locking jaw 41a along the 41b and is caught by the locking jaw 41a and this time is separated from the locking portion 6a of the hook 6. The door slides in the opening direction.

As described above, the shock absorber for the sliding door of the present invention prevents the closed door from being opened by itself, and minimizes the amount of impact that suddenly collides with the door housing when the door is closed. It is possible to prevent such things from happening.

Claims (5)

A main body 10 fixedly installed on the rail 2 of the door housing and having a guide hole 11 penetrated up and down along a longitudinal direction and having a spring hook 12 at one end thereof; It is arranged to be slidably on the bottom surface of the main body 10, is guided in the longitudinal direction caught by the engaging portion 6a of the hook (6) provided in the door slider 4 of the door in the state penetrating the guide hole (11) A first guide member 20 having a guide protrusion 21 formed therein and a spring hook 22 formed on one side thereof; A second guide member 30 sliding integrally with the first guide member 20 and having a damper mounting portion 31 provided at one side thereof; The locking jaw 41a is coupled to the bottom of the main body 10 while supporting the bottoms of the first and second guide members 20 and 30, and the guide protrusion 21 of the main body 10 is guided. Support member 40 having an auxiliary guide hole 41 is formed; A damper having an outer circumferential surface of the cylinder 51 fixedly coupled to the damper mounting portion 31 of the second guide member 30, and an end portion of the rod 52 which is projected outwardly from the cylinder 51 is fixed to the main body 10. 50); And A spring 60 which is caught by the spring hanger 12 of the main body 10 and the spring hanger 22 of the first guide member 20 to allow the first guide member 20 to slide with elasticity; Sliding door buffer device configured to include. The method of claim 1, When the door is opened, the guide protrusion 21 is guided in the state of being caught by the catching portion 6a of the hook 6, and then guided to the catching jaw 41a of the auxiliary guide hole 41 of the support member 40. While being caught by the jaw 41a and being detached from the engaging portion 6a of the hook 6, when the door is closed, the guide protrusion 21 is pushed by the inner curved surface 6b of the hook 6 again to catch the jaw 41a. ), The hooking portion 6a and the supporting member 40 of the hook 6 are moved to the hooking portion 6a of the hook 6 and slide together with the hook 6 while being caught by the hooking portion 6a. The locking jaw (41a) of the sliding door buffer device, characterized in that formed in the opposite direction bent. The method according to claim 1 or 2, Spring hook 32 is formed on the side adjacent to the damper mounting portion 31 of the second guide member 30, the shock absorbing device for a sliding door, characterized in that the spring hook 13 is formed in the body 10 corresponding thereto . The method of claim 3, The damper mounting portion 31 is a shock absorbing device for a sliding door, characterized in that the cylindrical shape surrounding the outer peripheral surface of the cylinder (51) of the damper (50). The method of claim 4, wherein The damper 50 is coupled to the damper mounting portion 31 by a forced press-fit method, but the damper mounting portion (a) is formed on the inner circumferential surface of the cylinder 51 of the damper 50 corresponding to the damper mounting portion 31. 31) The shock absorber for the sliding door, characterized in that the inner diameter of the damper 50 is formed smaller than the outer diameter of the cylinder (51).

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