KR102385709B1 - Damping apparatus for sliding door - Google Patents

Abstract

According to one embodiment of the present invention, a damping function is provided to enable a sliding door to be softly opened and closed, and the sliding door can be moved with small effort. Moreover, accordingly, the present invention prevents a hand from being caught when the sliding door is closed, and the sliding door is automatically closed without pushing and closing the sliding door to the end. Moreover, a moving pulley is not directly connected to a piston rod and is independently configured to prevent mutual interference between a cylinder and the moving pulley and efficiently realize an action of configurations contributing to an opening and closing situation of the door.

Description

Damping device for sliding door {DAMPING APPARATUS FOR SLIDING DOOR}

The present invention relates to a damping device for a sliding door.

In general, a sliding chassis door is opened when a resident rotates or pulls a lever mounted on the door, and then pushes or pulls the lever as a support means to open it wide. However, since the sliding chassis door is heavy, it is difficult for the elderly or children to open the door.

Also, even when the sliding chassis door is closed, it is strongly closed due to inertia according to its weight, which may cause noise and malfunction.

A door with a buffer function in a hinged door has a stopper and a buffer around the hinge, as in Korean Patent Office Registration No. 1994273, "A one-touch door stopper having a buffer function and a door fixing function to prevent an accident of hand pinching". What is configured to be provided is disclosed. In the proposed Utility Model Registration No. 0492717 "Sliding Door Lock", which pointed out the problems of these prior patents, the sliding door, which is a heavy object, was configured to close smoothly based on the expansion force of the gas spring shortened when the sliding door is closed. However, the damper with the gas spring had an aspect that required excessive human force to open and close the door.

In the case of a conventional sliding door, a door equipped with a cushioning function has been introduced, and the Korean Patent Office Patent No. 2171553 "Sliding door closing damping device" is that. Although there is an advantage in that the sliding door closing damping device is configured using a movable pulley or a movable pulley, there are problems such as difficulty in fixing the shortened piston rod or the piston rod not being extended when actually manufacturing and testing it.

Therefore, there is a need for research on a new type of damper that can be applied to a sliding door lock so that even the elderly or children can easily open and close it.

The present invention was derived based on the above necessity, and an object of the present invention is to provide a damping function so that the sliding door can be opened and closed smoothly, but to allow the sliding door to move with a small force, thereby preventing the sliding door from being pinched when it is closed. An object of the present invention is to provide a damping device for a sliding door that can be prevented and automatically closed without pushing the sliding door to the end.

An object of the present invention as described above is, in a damping device for a sliding door comprising a latch and a damping part caught by the latch to damp the sliding door,

The damping unit includes: a housing which is elongated in the sliding direction of the sliding door and has first and second guide long grooves formed on the inner side thereof; a damping member accommodated in the housing and including a cylinder body and a piston rod; a rod head which is guided and moved along the first guide long groove and is rotatably connected to the front end of the piston rod; a moving pulley that has a belt on one side and moves and rotates according to the shortening and extension of the piston rod; a pulley cover having a movable pulley accommodated therein and supporting the rotation shaft of the accommodated movable pulley and including an extension rod extending long in the direction of the rod head; and at least one of the first and second latching jaws disposed to be caught by the latches when the sliding door is opened and closed, the third latching jaws disposed on opposite sides of the first and second latching jaws, and at least one of the first and second latching jaws and a third Damping for a sliding door comprising a locking body including a locking body having two or more jaw receivers to which the locking jaws are mounted and ascending and descending, and guided along the second guide long groove to move, and an elastic member disposed in each of the jaw receivers. This can be achieved by providing a device.

In addition, the damping device for the sliding door may further include a spacer member interposed between the rod head and the pulley cover.

The spacer member may be an elastic body, and the elastic body may be to push the pulley cover from the fixed rod head when the piston rod is shortened to separate the rod head and the pulley cover from each other.

In addition, one end of each of the first and second guide long grooves is formed to be curved so that the rod head and the locking part are inclined when the piston rod is shortened, and the locking body is arranged to be guided to the second guide long groove on one side or both sides. It may be equipped with one or more rollers.

The locking body has a first protrusion, a part of which protrudes toward the rod head, and one surface of the rod head facing the locking body has a front side wall and a rear that form a seating groove so that the third locking jaw coming out of the jaw receiving device is seated. It has a side wall, and the front side wall may have a second protrusion protruding toward the locking body, but a part may be opened so that the extension bar can be retracted into the seating groove.

In addition, the second locking jaw is formed in a lifting structure so that the latch separated between the first and second locking jaws can re-enter between the first and second locking jaws when the sliding door is closed, and an inclined surface is formed on one side. , the rod head is fixed at the end of the first guide long groove when the piston rod is shortened, and the fixed rod head is released while the first projection collides with the second projection when the sliding door is closed, and is fixed The released rod head may be one that generates a door moving force that pushes the third locking jaw raised by the rear side wall based on the elongation of the piston rod.

According to an embodiment of the present invention as described above, a damping function is provided so that the sliding door can be opened and closed smoothly, but the sliding door can be moved even with a small force. Through this, it is possible to prevent the sliding door from being pinched when it is closed, and there is an effect that the sliding door closes automatically even if it is not pushed all the way to the end.

In addition, according to the damping device for a sliding door according to an embodiment of the present invention, the force to open and close the door can be reduced by mounting a movable pulley therein, so that the damping function can be implemented with a small force.

In addition, since the movable pulley is configured independently without being directly connected to the piston rod, the action of the components contributing to the door opening/closing situation can be efficiently implemented without mutual interference between the cylinder and the movable pulley.

1 is a view showing an embodiment of a damping device for a sliding door according to the present invention applied to a sliding door and a door frame, as viewed obliquely from below;
2 is a perspective view showing a damping part, which is a configuration of an embodiment of a damping device for a sliding door according to the present invention;
3 is a side view showing when the door is closed, as one side of the housing of the damping unit is removed and the inner side of the damping device for a sliding door according to the present invention is removed;
4 is an exploded perspective view showing the components of the locking part of the damping part, which is the configuration of an embodiment of the damping device for a sliding door according to the present invention;
5 is a perspective view of a state obliquely viewed from top to bottom by combining the disassembled damping part of FIG. 4;
6 is a perspective view of the disassembled damping part of FIG. 4 coupled to an oblique view from the bottom up;
7 is a perspective view showing a load head, a movable pulley, and a pulley cover of the damping part, which are the configuration of an embodiment of the damping device for a sliding door according to the present invention;
8 is a side view showing when the door is opened with one side of the housing of the damping part removed and the inner side of the damping device for a sliding door according to an embodiment of the present invention removed;
9 is a side view showing just before the piston rod is stretched while the door is closed in a state where one side of the housing of the damping part, which is a configuration of the damping device for a sliding door according to the present invention, is removed and the inner side is viewed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and contents described in the accompanying drawings, but the present invention is not limited or limited by the embodiments.

Various modifications may be made to the embodiments described below. It should be understood that the embodiments described below are not intended to limit the embodiments, and include all modifications, equivalents, and substitutes thereto.

Meanwhile, in describing the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms used in this specification are terms used to properly express the embodiment of the present invention, which may vary according to the intention of a user or operator or customs in the field to which the present invention belongs. Accordingly, definitions of these terms should be made based on the content throughout this specification.

Damping device for sliding doors

1 is a view showing an embodiment of a damping device for a sliding door of the present invention applied to a sliding door and a door frame, and is a view showing a state obliquely looking up from below, FIG. 2 is an embodiment of a damping device for a sliding door of the present invention It is a perspective view showing a damping part that is an example configuration. 1 and 2, in one embodiment of the damping device for a sliding door according to the present invention, a first latching jaw 1610 and a second latching jaw 1620 in which the latch 5 protrudes into the opening of the housing 110 ), the damping part 10 and the latch 5 interact with each other so that the sliding door D can be opened and closed with little force along the door frame F.

3 is a side view showing when the door D is closed with one side of the housing 110 removed of the damping unit 10, which is an embodiment of the damping device for a sliding door according to the present invention, and the inner side is viewed. As shown in FIG. 3 , the damping part 10 of this embodiment includes a housing 110 in which first and second guide long grooves 1110 and 1120 are formed, and a cylinder body 1210 and a piston rod 1220 as a damping member. , the rod head 130 at the front end of the piston rod 1220, the pulley cover 150, the movable pulley 140 disposed inside the pulley cover 150, a portion of the locking part 160 that protrudes into the housing 110 is comprised of Configurations not partially shown in FIG. 3 will be described with reference to drawings that will be described later. Here, an operating mechanism of the door D in a closed state (or just before being opened) will be described.

In the closed state of the door (D) shown in FIG. 3 , the latch 5 is positioned between the first latching jaw 1610 and the second latching jaw 1620 of the latching part 160, and the latch 5 is caught by the second locking jaw 1620 and the door D can be opened. Since the belt B is caught by the movable pulley 140 located inside the pulley cover 150 and moves, the sliding door D can be opened with a small force despite the presence of the damper member. And when the door (D) starts to open, the pulley cover 150 supporting the rotation shaft of the movable pulley 140 and the movable pulley 140 inside move together, including a front side wall 1310 and a rear side wall 1320 The rod head 130 is pushed and the piston rod 1220 is pushed into the cylinder body 1210 . Here, the belt (B) is wound around the movable pulley (140), and one end of the belt (B) is fixed to the locking part (160) and the other end is fixed to the housing (110). A detailed operation mechanism for opening and closing the sliding door D will be described later.

4 is an exploded perspective view showing the components of the engaging part of the damping part, which is an embodiment of the damping device for a sliding door according to the present invention, in an exploded perspective view, and FIG. 6 is a perspective view of the disassembled damping unit of FIG. 4 combined and viewed obliquely from the bottom up, and FIG. 7 is a load head, a movable pulley and a pulley of the damping unit, which is a configuration of an embodiment of the damping device for a sliding door according to the present invention. It is a perspective view showing the cover. Hereinafter, the configurations of the present embodiment will be described in detail with reference to FIGS. 4 to 7 .

As shown in Figures 4, 5, 6, the engaging portion 160 is the engaging body (1640a, 1640b), the first engaging jaws (1610a, 1610b), the second engaging jaw (1620), the third engaging jaw (1630) ), a belt lock cover 1648, and rollers 1660, 1662, 1644, 1666 may be configured to include. In this embodiment, the second locking jaw 1620 and the third locking jaw 1630 are the locking bodies 1640a and 1640b to the inside and outside of the locking bodies 1640a and 1640b. ) is preferably formed. Although not shown, an elastic member (for example, a spring) is located inside the jaw receivers 1642 and 1644 formed in the locking bodies 1640a and 1640b so that the second locking jaw 1620 and the third locking jaw 1630 are to be raised or lowered. The rollers 1660 , 1662 , 1644 , and 1666 are seated in the second guide long groove 1120 formed in the housing 110 to help the movement of the locking part 160 by rolling motion. Belt locking cover 1648 serves as a cover and fixing one end of the belt (B) to the irregularities of the engaging body (1640a, 1640b).

In particular, the first protrusion 1646 formed at the lower end of the engaging bodies 1640a and 1640b is caught with the second protrusions 1312 , 1312a , 1312b of the rod head 130 to be described later, so that the door D is closed in the closing situation of the rod head. (130) serves to release the fixation. This will be described later.

7 is a perspective view illustrating a load head, a movable pulley, and a pulley cover of a damping part, which are components of a damping device for a sliding door according to an embodiment of the present invention. As shown in FIG. 7 , the movable pulley 140 is positioned inside the pulley cover 150 and the belt B is hooked and rotated to move. The movable pulley 140 moves together with the pulley cover 150 and the guide protrusions 1502 and 1504 formed on one or both sides of the pulley cover 150 are guided along the first guide long groove 1110 to move stably. can be

In particular, in the pulley cover 150 , the extension rod 152 protrudes toward the opening between the first locking jaws 1312a and 1312b formed by splitting the rod head 130 . And in the door (D) open state, that is, in the rod head 130 fixed state, a spacer member (not shown, for example, a spring) that separates the pulley cover 150 and the load head 130 from each other is accommodated. A groove 1510 is formed.

The rod head 130 is rotatably connected to the front end of the piston rod 1220 and contributes to fixing the compressed state of the piston rod 1220 and activating the expanded state. The rod head 130 provides a seating groove in which the third locking jaw 1630 ascending and descending through the front sidewalls 1310a and 1310b and the rear sidewall 1320 can be seated, and at the same time, the front sidewalls 1310a and 1310b formed by splitting. ) also serves to receive the extension rod 152 into the interior. In addition, the rod head 130 has guide projections 1330 and 1332 formed on one side or both sides, so it can be guided and moved along the first guide long groove 1110 , and in particular, a guide projection close to the piston rod 1220 . 1332 is preferably formed as a rotating shaft to enable rotation at the front end of the piston rod 1220.

8 is a side view of the damping device for a sliding door of the present invention when the door is opened with one side of the housing removed and the inner side of the damping device of the present invention is removed, and FIG. 9 is a damping device for a sliding door of the present invention It is a side view showing just before the piston rod is stretched while the door is closed as one side of the housing of the damping part, which is a configuration according to an embodiment, is removed and the inner side is viewed. Hereinafter, an open and closed state of the sliding door D will be described with reference to FIGS. 8 and 9 .

Referring to FIG. 8 , in a situation in which the sliding door D is opened, the locking body 1640 is turned at the curved point of the second guide long groove 1120 and the second locking jaw 1620 enters the housing 110 and , then the clasp 5 is separated between the first engaging jaw 1610 and the second engaging jaw 1620 . In a situation in which the locking body 1640 is tilted, the rod head 130 is also tilted at the curved point of the first guide long groove 1110 .

However, unlike the locking body 1640 to which the rollers 1660 and 1662 are attached, the rod head 130 is fixed by being caught by the guide protrusion 1332 at the curved point of the first guide long groove 1110 . The fixed rod head 130 pushes the pulley cover 150 through a spacer member (not shown) positioned between it and the pulley cover 150 . Therefore, while the compressed state or shortened state of the piston rod 1220 is maintained, the pulley cover 150 is spaced apart from the rod head 130 by a predetermined distance, and the engaging portion 160 is located in the horizontal section of the second guide long groove 1120. can

Afterwards, in a situation in which the sliding door D is closed, the latch 5 is repositioned between the first and second stopping jaws 1610 and 1620 again beyond the inclined surface of the second stopping jaw 1620 capable of elevating and lowering. . Thereafter, the situation in which the sliding door D is closed will be described in detail with reference to FIG. 9 .

Referring to FIG. 9 , in a situation in which the sliding door D is closed, the first protrusion 1646 collides with the second protrusion 1312 and the rod head 130 is tilted to release the fixed state. At this time, the third locking jaw 1630 descends downward and is seated in the seating groove in front of the rear side wall 1320 . Subsequently, when the fixing is released and the rod head 130 returns to a horizontal state, the rear side wall 1320 pushes the third locking jaw 1630 as the piston rod 1220 expands or stretches. The reason why the pulley cover 150 and the rod head 130 are pushed through the spacer member to be spaced a predetermined distance apart is that the above-described third locking jaw 1630 does not interfere with or interfere with the extension rod 152 on the rear sidewall (1320) in order to be positioned in front.

When the rod head 130 pushes the pulley cover 150 to reach the closed state of the sliding door D shown in FIG. 3 , the inclined surface of the extension rod 152 pushes up the third locking jaw 1630 , and eventually 3 As the locking jaw 1630 is accommodated in the receiving port 1644 inside the locking body 1640, the closed state of the sliding door D is terminated.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the technical configuration of the present invention described above is another specific form for those skilled in the art to which the present invention belongs without changing the technical spirit or essential features of the present invention It will be understood that it can be implemented as Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. In addition, the scope of the present invention is indicated by the following claims rather than the above detailed description. In addition, all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

D: sliding door
F: door frame
B: Belt
5: clasp
10: damping part
110: housing
1110: first guide long groove
1120: second guide long groove
1130: cylinder body mounting groove
1210: cylinder body
1220: piston rod
130: rod head
1310, 1310a, 1310b: front sidewall
1312, 1312a, 1312b: second protrusion
1320: rear sidewall
1330, 1332: guide turn
140: moving pulley
150: pulley cover
1502, 1504: guide turn
1510: spacer member receiving groove
152: extension rod
160: catching part
1610, 1610a, 1610b: first latching jaw
1620: second latching jaw
1630: third latching jaw
1640, 1640a, 1640b: Jam body
1642, 1644: jaw receptacle
1646: first protrusion
1648: belt lock cover
1650, 1652: elastic member
1660, 1662, 1664, 1666: roller

Claims (6)

A damping device for a sliding door comprising a latch and a damping part caught by the latch to damp the sliding door, the damping device comprising:
The damping unit,
a housing formed elongated in the sliding direction of the sliding door and having first and second guide long grooves formed on the inner side thereof;
a damping member accommodated in the housing and including a cylinder body and a piston rod;
a rod head guided and moved along the first guide long groove and rotatably connected to a tip of the piston rod;
a moving pulley that has a belt on one side and moves and rotates according to the shortening and extending of the piston rod;
a pulley cover accommodating the movable pulley therein, supporting the rotation shaft of the accommodated movable pulley, and including an extension rod extending long in the direction of the rod head;
At least one of the first and second latching jaws disposed to be caught by a latch when the sliding door is opened and closed, a third latching jaw disposed on opposite sides of the first and second latching jaws, and the first and second latching jaws; A locking part including a locking body having two or more jaw receiving ports on which a third locking jaw is mounted and ascending and descending, and being guided along the second guide long groove to move, and an elastic member disposed in each of the jaws; and
a spacer member interposed between the rod head and the pulley cover;
The spacer member is an elastic body,
The elastic body is to push the pulley cover from the fixed rod head when the piston rod is shortened to separate the rod head and the pulley cover from each other
A damping device for sliding doors, characterized in that
delete delete According to claim 1,
One end of each of the first and second guide long grooves is formed to be curved so that the rod head and the engaging portion are inclined when the piston rod is shortened,
The engaging body, one or more rollers arranged to be guided to the second guide long groove on one side or both sides is mounted
A damping device for sliding doors, characterized in that
According to claim 1,
The locking body has a first protrusion, a portion of which protrudes toward the rod head,
One surface of the rod head facing the locking body has a front sidewall and a rear sidewall that form a seating groove so that the third locking jaw coming out of the jaw receiving part is seated, and
The front side wall has a second protrusion that protrudes toward the locking body, and is partially opened so that the extension bar can be introduced into the seating groove.
A damping device for sliding doors, characterized in that
6. The method of claim 5,
The second locking jaw is formed in a lifting structure so that the latch separated between the first and second locking jaws can re-enter between the first and second locking jaws when the sliding door is closed, and on one side A slope is formed,
The rod head is fixed at the end of the first guide long groove when the piston rod is shortened,
The fixed rod head is released while the first protrusion collides with the second protrusion when the sliding door is closed, and
The unlocked rod head generates a door moving force for pushing the third locking jaw raised by the rear side wall based on the elongation of the piston rod
A damping device for sliding doors, characterized in that

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