KR200492717Y1 - Sliding door-lock apparatus - Google Patents

Abstract

According to an embodiment of the present invention, when the sliding door is opened, a push function of pushing the door from the door frame is expressed to facilitate opening of the heavy sliding door, and when closing the heavy sliding door by reducing the impact applied to the door frame. The sliding door can be closed smoothly, and the heavy sliding door closes smoothly based on the expansion force and damping of the gas spring shortened when the sliding door is closed, and the effect is that it can be completely locked in the close distance between the striker and the locking protrusion. have.

Description

Sliding door lock {SLIDING DOOR-LOCK APPARATUS}

The present invention relates to a sliding door locking device.

In general, a sliding chassis door is opened by a occupant rotating or pulling a lever mounted on the door and then pulling a lever or the like as a support means, and then can be opened wide by pushing or pulling. However, since the sliding chassis door has a large weight, it is difficult for the elderly or children to open the door.

In addition, even when the sliding chassis door is closed, it is strongly closed due to inertia according to its weight, which can cause noise and failure.

In the case of a hinged door, a door with a buffer function is provided with a stopper and a buffer part around the hinge, such as the Korean Patent Office Registration No. 1994273 "One-touch door stopper with a buffer function for preventing hand jamming and a door fixing function". It is disclosed that it is configured to be provided.

However, since such a conventional patent is installed to be exposed to the outside of the hinged door, it is not good in appearance and has a limitation that cannot be applied to a sliding chassis door.

Accordingly, there is a need for a new type of sliding door locking device capable of expressing a push function when opened and a buffer function when closed by being installed on the locking device without significant deformation while maintaining the shape of the conventional sliding door locking device.

The present design was derived based on the necessity as described above, and the first object of the present design is that when the sliding door is opened, a push function of pushing the door from the door frame is expressed, making it easier to open the heavy sliding door, and when closing the door It is to provide a sliding door locking device that can smoothly close the heavy sliding door by reducing the impact applied to the frame.

A second object of the present invention is to provide a sliding door locking device capable of facilitating initial movement of a heavy sliding door by converting a rotational force for rotating a lever of a sliding door into a push force pushing it out of a door frame.

The third object of the present invention is to provide a sliding door locking device that allows the pusher protruding from the open sliding door to first contact the door frame when closing the sliding door, and allows the sliding door to be closed smoothly through a buffer spring interposed on the pusher. To provide.

The fourth object of the present invention is a sliding door locking device capable of being completely locked at a close distance between the striker and the locking protrusion while the heavy sliding door is smoothly closed based on the shortened expansion force and damping of the gas spring when the sliding door is closed. To provide.

The fifth object of the present invention is to smoothly close a heavy sliding door with a gas spring, but when the piston rod of the gas spring is extended to the maximum, the expansion force of the gas spring decreases at the close distance between the striker and the locking protrusion, and the inclined surface of the locking protrusion Provides a sliding door locking device capable of solving the above-described problem by arranging a pair of magnetic bodies to provide a sharp attraction at a close distance by arranging a pair of magnet bodies to solve the problem that the striker cannot cross the slope of the locking protrusion due to the horizontal repulsion force and the cushioning force of the pusher. Have.

An object of the present invention as described above, in the locking device of the sliding door, the striker fixed to the door frame; A bracket mounted on one side of the sliding door so as to face the striker and having a concave side facing the striker shape; A cam mounted inside the bracket and converting rotational motion into linear motion; Mounted inside the bracket, a locking protrusion with a first inclined surface that protrudes from one side of the bracket and protrudes to the concave side of the bracket and slides from one end of the striker and is locked to the rear of the striker, and is formed extending below the locking protrusion and is horizontal based on the rotational motion of the cam A lock pin including a first motion direction converting portion to move, and a second motion direction converting portion that extends to have a second inclined surface opposite the locking protrusion and converts horizontal motion into vertical motion; A restoration spring interposed in the horizontal direction opposite the first movement direction switching unit; A pusher mounted inside the bracket, having a third inclined surface facing the second inclined surface and formed at an inverted end, receiving a push force from the second inclined surface, and protruding an upper side of the bracket upward; A buffer spring mounted inside the bracket and transferring a buffering force to the door frame between the bracket and the door frame; A door latch fixed to one side of the sliding door; It is placed on the inner side of the door frame to damp the sliding door, and a locking part that is caught by the door latch when the sliding door is opened and closed, and a locking part is mounted at the end of the door and is caught by the door latch when the sliding door is opened and shortened. A gas spring including a piston rod extending by being caught by a door latch when the sliding door is closed, and a cylinder body in which internal fluid is compressed when the piston rod is shortened and the internal fluid is expanded when the piston rod is extended; And a gas that is fixed to the side of the door frame, accommodates a gas spring therein, a cylinder body is mounted on one end, and a locking part is mounted on the other end, and a long groove to prevent dropping is formed so that the locking part moves forward and backward in a certain direction on one side Including a spring receiving portion, the magnet body receiving portion is further formed at one end of the bracket, the first magnet body accommodated in the magnet body receiving portion, and a second magnet body that is accommodated in the rear surface of the striker and acts on the first magnet body and attraction It can be achieved by providing a sliding door locking device further comprising.

The bracket may have a first stopper formed so that a restoration spring interposed between the lock pin is supported.

The bracket may be formed with a pair of vertical guides for guiding the vertical movement of the pusher.

The pusher may have a through hole formed therein so that the buffer spring is received in the vertical direction.

Here, the bracket has a second stopper protruding through the through hole, and the buffer spring may be interposed between one inner side of the through hole and the second stopper.

According to an embodiment of the present invention as described above, when the sliding door is opened, a push function of pushing the door from the door frame is expressed, so that the sliding door, which is a heavy object, can be easily opened, and when it is closed, the impact applied to the door frame is relieved. There is an effect that the sliding door can be closed smoothly.

In addition, there is an effect of converting the rotational force for rotating the lever of the sliding door into a push force pushing it from the door frame, thereby facilitating the initial movement of the heavy sliding door.

In addition, when the sliding door is closed, the pusher protruding from the open sliding door first comes into contact with the door frame, and the sliding door can be closed smoothly through a buffer spring interposed in the pusher.

Meanwhile, according to an embodiment of the present invention, when the sliding door is closed, the sliding door, which is a heavy object, is smoothly closed based on the expansion force and damping of the gas spring shortened when the sliding door is closed, and the effect that the sliding door can be completely locked at the close distance between the striker and the locking protrusion is achieved. have.

In addition, the gas spring smoothly closes the heavy sliding door, but when the piston rod of the gas spring is extended to the maximum, the expansion force of the gas spring decreases at the close distance between the striker and the locking protrusion, the horizontal repulsion force of the inclined surface of the locking protrusion, and the cushioning force of the pusher. Therefore, it is possible to solve the above-described problem by arranging a pair of magnet bodies so that a sharp attraction force is provided at a close distance by arranging a pair of magnet bodies to solve the problem that the striker does not cross the slope of the locking projection.

1 is a perspective view showing a first embodiment of a sliding door locking device according to the present invention,
2 is an exploded perspective view showing an exploded state of the first embodiment of the sliding door locking device according to the present invention,
3 is a perspective view showing the inside of the bracket with the cover removed from the configuration of the first embodiment of the sliding door locking device according to the present invention,
Figure 4 (a), (b), (c) shows a locked state (a), an open intermediate state (b), and an open state (c) of the first embodiment of the sliding door locking device according to the present invention by separating the cover. It is a front view,
5 is a front view showing the cover of the second embodiment of the sliding door locking device according to the present invention separated,
6 is a perspective view showing a gas spring and a gas spring accommodating portion among the configurations applied to the second embodiment of the sliding door locking device according to the present invention,
7 is a perspective view showing an arrangement relationship between a gas spring and a stopper among the configurations applied to the second embodiment of the sliding door locking device according to the present invention,
8 is a cross-sectional view for explaining the operation of a pair of magnet bodies among the configurations to be applied to the second embodiment of the sliding door locking device according to the present invention.

In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms used in the present specification are terms used to properly express a preferred embodiment of the present invention, which may vary depending on the intention of users or operators, or customs in the field to which the present invention belongs. Accordingly, definitions of these terms should be made based on the contents throughout the present specification. The same reference numerals in each drawing indicate the same configuration.

Sliding door lock

1 is a perspective view showing a first embodiment of a sliding door locking device provided with a push and buffer function of the present invention. As shown in FIG. 1, the first embodiment sliding door locking device 1 includes a striker 10 mounted on a door frame (not shown) and a bracket 20 mounted on a door (not shown). As components accommodated in the cover 30 interact, the door is locked or opened in the door frame. In particular, in the first embodiment, when the door is locked, the cushioning function is expressed so that the door is closed smoothly, and when the door is opened, the push function is expressed so that the door can be opened with a small force.

For reference, in the present invention, the length direction (x) is actually mounted on the door frame and the door as a direction perpendicular to the ground, but for convenience, the z axis is defined as the vertical direction, the x axis as the horizontal direction, and the y axis as the direction facing the front.

Hereinafter, the configurations of the first embodiment of the present invention and its operation will be described with reference to FIGS. 1 to 4.

In the first embodiment sliding door locking device 1, the striker 10 is fixed to the door frame and the lock pins 220, 222, which are the internal structure of the bracket 20, are locked at both ends to the fixed striker 10. It opens while being released.

The bracket 20 is mounted on one side of the door so as to face the striker 10, and one side facing the striker 10 is formed to be concave. This is to allow the striker 10 to be recessed into a concave portion.

The cam 210 is mounted in the center inside the bracket 20. The cam 210 serves to convert a rotational motion into a linear motion. A lever (not shown) is mounted on the cam 210 and a person rotates the mounted lever, thereby causing a rotational motion of the cam 210. To this end, the cam 210 has a hole through which a lever can be inserted into the center of the rotational cavity, and the through-hole inner circumferential surface is formed in a polygonal shape.

The lock pins 220 and 222 are mounted inside the bracket 20 to perform a horizontal movement based on the rotational movement of the cam 210 described above. The lock pins 220 and 222 are formed to include locking protrusions 2210a and 2210b, first movement direction conversion parts 2220 and 2222, and second movement direction conversion parts 2230a and 2230b. Since the lock pins 220 and 222, which are the configuration of the first embodiment, are spaced apart from each other and are arranged in a pair, the locking protrusions 2210a and 2210b, the first movement direction conversion parts 2220 and 2222, and the second movement direction conversion part 2230a, 2230b) also consists of a pair.

The locking protrusions 2210a and 2210b have a first inclined surface so as to protrude to one side of the bracket 20 formed in a concave shape, slide from one end of the striker 10 and engage with the rear surface of the striker 10. In particular, in the first embodiment, the striker 10 is configured to slide at both ends of the striker 10 in the longitudinal direction so as to be simultaneously engaged with the rear surface of the striker 10.

The first movement direction switching parts 2220 and 2222 are formed to extend below the locking protrusions 2210a and 2210b and move horizontally based on the rotational motion of the cam 210. The first movement direction switching units 2220 and 2222 are configured to receive rotational force from the outer circumferential surface of the cam 210 and push the lock pins 220 and 222 in the horizontal direction.

The lock pins 220 and 222 moved in the horizontal direction may be returned to their positions again by the restoring springs 230 and 232 interposed in the horizontal direction opposite the first movement direction conversion units 2220 and 2222. Accordingly, the bracket 20 has first stoppers 260 and 262 formed therein so that the restoring springs 230 and 232 interposed between the lock pins 220 and 222 are supported.

The second movement direction conversion parts 2230a and 2230b are formed to extend to have a second inclined surface opposite the locking protrusions 2210a and 2210b, and serve to convert horizontal movement into vertical movement. Surfaces contacting each other are formed to be inclined so that the second movement direction conversion parts 2230a and 2230b push the pushers 240 and 242 described below.

The pushers 240 and 242 are mounted inside the bracket 20 and have a third inclined surface formed as an inverted end facing the second inclined surface, and the upper side protrudes upward from the second inclined surface by receiving a push force. Configuration. When the part protruding upwardly from the bracket 20 pushes the door frame, the sliding door can be easily opened initially with a small force for sliding.

In order to guide the vertical movement of the pushers 240 and 242, a pair of vertical guide portions 270a, 270b, 270c, and 270d may be further formed inside the bracket 20.

The buffer springs 250 and 252 are mounted inside the bracket 20. Specifically, the pushers 240 and 242 have through holes 2420 and 2422 formed therein, and the second stopper 280 is formed as the through holes 2420 and 2422. , 282) is protruding. As a result, the buffer springs 250 and 252 are interposed in a vertical direction between one inner side (the inner side of the vertical upper side) and the second stoppers 280 and 282 of the inner side surfaces of the through holes 2420 and 2422.

The push function of the first embodiment will be described with reference to Figs. 4 (a), (b), and (c). As shown in FIG. 4, in the locked state (a), the locking protrusions 2210a and 2210b of the lock pins 220 and 222 are caught on both ends of the striker 10, so that the door does not open and the lock pins 220 and 222 are 2 The movement direction switching units 2230a and 2230b are also spaced apart from the pushers 240 and 242, and the upper side of the pushers 240 and 242 is blocked by the door frame.

Subsequently, in the open intermediate state (b), the locking protrusions 2210a and 2210b of the lock pins 220 and 222 are removed from both ends of the striker 10, and the second movement direction switching parts 2230a and 2230b of the lock pins 220 and 222 Comes in contact with the pushers 240 and 242.

Finally, in the open state (c), the locking protrusions 2210a and 2210b of the lock pins 220 and 222 are completely removed from both ends of the striker 10, and the second movement direction conversion parts 2230a and 2230b of the lock pins 220 and 222 Pushes the pushers 240 and 242 in the horizontal direction. The pushers 240 and 242, which receive vertical force by the second inclined surfaces of the second movement direction conversion parts 2230a and 2230b, push the door frame in the vertical direction by protruding the vertical upper side out of the bracket 20.

5 is a front view showing the cover of the second embodiment of the sliding door locking device provided with a push and buffer function according to the present invention separated. The configuration of the second embodiment will be described in detail with reference to FIG. 5.

Unlike the first embodiment, the second embodiment is configured with a one-point lock. That is, one lock pin 244, one pusher 244, one restoration spring 234, and one buffer spring 254 are accommodated in the bracket 22.

As in the first embodiment, the rotation of the lever creates a rotational motion of the cam 212, and when the force is transmitted to the first direction changer 2224 in contact with it, the locking protrusion 2210c becomes the striker. (10) It opens as it moves away from one end.

Push function In addition, when the second direction conversion part 2230c pushes the inclined surface of the reverse cross-section of the pusher 244 due to the horizontal movement of the lock pin 224, vertical movement occurs and the bracket 22 protrudes upward to push the door frame. Works.

Also in the second embodiment, the first stopper 264 supports the restoration spring 234 and restores the position of the lock pin 224, and the buffer spring 254 is also formed on the bracket 22 inside the pusher 244. 2 It is interposed between the stopper 284 and acts to alleviate the impact applied to the door frame when the door is closed. In addition, a pair of vertical guide portions 270e and 270f are formed inside the bracket 22 to guide the vertical movement of the pusher 244.

In particular, in the second embodiment shown in FIG. 5, a magnet body receiving portion 290 is further formed at one end of the bracket 22, and a first magnet body 70 accommodated in the magnet body receiving portion 290 is further included. do. This is to allow attractive force to be applied between the first magnet body 70 and the second magnet body 72 which is accommodated in the rear surface of the striker 10 to be described later and acts as an attractive force. The magnet body may be a neodymium magnet and forms a strong magnetic force at a close distance.

6 is a perspective view showing a gas spring and a gas spring receiving portion among the configurations applied to the second embodiment of the sliding door locking device according to the present invention. 6, the gas spring 40 includes a cylinder body 430, a piston rod 410, and a locking portion 420. In the locking part 420, a pair of two mutually facing jaws 422 and 424 are formed at the ends of the piston rod 410. The latch 60 to be described later is caught by the pair of jaws 422 and 424 while moving forward and backward, so that the shortening and extension of the piston rod 410 occurs.

The gas spring 40 is accommodated and mounted in the gas spring accommodating part 50, which is an injection case, and the locking part 420 is formed by the anti-falling grooves 510 and 512 formed on both sides of the gas spring accommodating part 50. The locking part 420 is further formed with a pair of protrusions 426a and 426b to prevent separation and to shorten and extend the piston rod 410.

Separately, a pair of protrusions 428a and 428b are further formed on the side of the cylinder body 430 to fix the gas spring 40 to the gas spring receiving portion 50. In particular, the pair of anti-falling grooves 510 and 512 are formed in a curved shape at the ends close to the cylinder body 340, so that when shortening, a pair of protrusions 426a and 426b are seated and locked into the bent groove and open. The jaw 422 is retracted and the door latch 60 is formed to be removed from the opening jaw 422. Accordingly, the pair of protrusions 426a and 426b may be formed as a single shaft and become a rotation shaft through which the locking portion 420 can rotate.

7 is a perspective view showing an arrangement relationship between a gas spring and a stopper among the configurations applied to the second embodiment of the sliding door locking device according to the present invention. As shown in FIG. 7, the gas spring 40 is accommodated in the accommodating portion 50 and fixed to a flat surface inside the upper portion of the door frame. In addition, the latch 60 is fixed to the sliding door 30 so that it may be caught in the opening jaw 422 and the closing jaw 424 described above. Specifically, when the sliding door is closed, the latch 60 is caught in the closing jaw 424 and is damped while the sliding door 3 is gently closed and opened, the latch 60 is caught in the opening jaw 422, and the sliding door ( 3) As it opens, the piston rod 410 is shortened and the fluid is compressed inside the cylinder body 430.

8 is a cross-sectional view for explaining the operation of a pair of magnet bodies among the configurations to be applied to the second embodiment of the sliding door locking device according to the present invention. As shown in Fig. 8, the bracket 22 and the locking protrusion 2210c mounted on the sliding door 3 slide on the striker 10 fixed to the door frame 2, and the rear surface of the striker 10 It is inserted into the empty space of and locked. However, the expansion force due to the extension of the piston rod 410 of the gas spring 40 described above can be locked only when it exceeds the horizontal repulsion force on the inclined surface of the locking protrusion 2210c of the lock pin 224 and the buffering force of the pusher 244. The increase in strength has a problem that makes it difficult to open the sliding door 3.

Therefore, a magnet body receiving portion 290 is formed at one end of the bracket 22 and configured to further include a first magnet body 70 accommodated in the magnet body receiving portion 290, and provided on the rear surface of the striker 10. 1 The second magnet body 72 is arranged to be accommodated in a position corresponding to the magnet body 70.

When the sliding door 2 is closed, the first magnet body 70 and the second magnet body 72 at a distance where the expansion force of the gas spring 40 and the horizontal repulsion force on the inclined surface of the locking protrusion 2210c balance the force. ) Acts so that the locking protrusion 2210c of the sliding door 2 is engaged with the rear surface of the striker based on the magnetic force pulled by each other. Here, the repulsive force that repels the expansion force of the gas spring 40 may be regarded as a concept including a repulsive force on the inclined surface of the locking protrusion 2210c and a buffering force of the pusher 244.

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 in other specific forms without changing the technical idea or essential features of the present invention by those skilled in the technical field to which the present invention belongs. It will be appreciated that it can be implemented with. Therefore, the embodiments described above are illustrative in all respects and should be understood as non-limiting. In addition, the scope of the present invention is indicated by the claims to be described later rather than the detailed description above. In addition, all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

1: sliding door lock
2: door frame
3: sliding door
10: striker
20, 22: bracket
210, 212: cam
220, 222, 224: rockpin
2210a, 2210b, 2210c: locking projection
2220, 2222, 2224: first movement direction switching unit
2230a, 2230b, 2230c: second movement direction switching unit
230, 232, 234: restoring spring
240, 242, 244: pusher
2420, 2422: through hole
250, 252, 254: buffer spring
260, 262, 264: first stopper
270a, 270b, 270c, 270d, 270e, 270f: a pair of vertical guides
280, 282, 284: second stopper
290: magnet body receiving portion
30: cover
40: gas spring
410: piston rod
420: locking part
422: open jaw
424: closed jaw
426a, 426b, 428a, 428b: sliding protrusion
430: cylinder body
50: gas spring receiving portion
510, 512: long groove to prevent falling off
60: door latch
70, 72: magnetic body

Claims (5)

In the locking device of the sliding door,
A striker fixed to the door frame;
A bracket mounted on one side of the sliding door so as to face the striker, and having the one side facing each other in correspondence with the shape of the striker;
A cam mounted inside the bracket and converting a rotational motion into a linear motion;
A locking protrusion mounted inside the bracket, protruding to a concave side of the bracket, sliding from one end of the striker, and having a first inclined surface to be engaged with the rear surface of the striker, and extending below the locking protrusion, A lock pin including a first motion direction converting portion for horizontal motion based on a rotational motion, and a second motion direction converting portion extending to have a second inclined surface opposite the locking protrusion and converting the horizontal motion into a vertical motion;
A restoring spring interposed in a horizontal direction opposite the first movement direction switching unit;
A pusher mounted inside the bracket, having a third inclined surface facing the second inclined surface and formed at an opposite end, receiving a push force from the second inclined surface, and protruding an upper side upward of the bracket;
A buffer spring mounted inside the bracket and transferring a buffering force to the door frame between the bracket and the door frame;
A door stop fixed to one side of the sliding door;
It is disposed on the inner side of the door frame to damp the sliding door, a locking part that is caught by the door latch when the sliding door is opened and closed, and the locking part is mounted at an end of the sliding door and the locking part is installed at the end of the sliding door. A piston rod that is caught and shortened by a door latch and is caught by the door latch when the sliding door is closed, and an internal fluid is compressed when the piston rod is shortened, and an internal fluid is expanded when the piston rod is extended. A gas spring including a cylinder body; And
It is fixed to the side of the door frame, accommodates the gas spring therein, the cylinder body is mounted on one end and the locking part is mounted on the other end, and the locking part is mounted on one side to prevent dropping so that it moves forward and backward in a certain direction. Including a gas spring receiving portion formed with a long groove,
A magnet body receiving portion is further formed at one end of the bracket,
A sliding door locking device further comprising a first magnet body accommodated in the magnet body accommodating portion, and a second magnet body accommodated in a rear surface of the striker and exerting an attractive force with the first magnet body.
The method of claim 1,
The bracket is a sliding door locking device, characterized in that the first stopper is formed to support the restoring spring interposed between the locking pin.
The method of claim 1,
The bracket is a sliding door locking device, characterized in that further formed with a pair of vertical guides for guiding the vertical movement of the pusher.
The method of claim 1,
A sliding door locking device, wherein the pusher has a through hole formed therein so that the buffer spring is received in a vertical direction.
The method of claim 4,
The bracket has a second stopper protruding through the through hole,
The buffer spring is a sliding door locking device, characterized in that interposed between the second stopper and one of the inner side of the through hole.

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