KR100681423B1 - Sliding Door Locks - Google Patents

Abstract

A locking apparatus of a sliding door is provided to push and open the sliding door to the side and conveniently release the locked condition of the sliding door by pulling the knob and lifting down the operating piece. A locking apparatus of a sliding door is composed of a pusher(17) formed with chin and neck parts(17a,17b) at a housing(12) fixed in the sliding door and horizontally installed to appear and disappear by recovery force of a first elastic member(18); and an operating piece(19) formed with a hook(22) and a cut part(23a) at the lower side of the pusher and mounted to be lifted up and down by recovery force of a second elastic member(20). The operating piece is lifted up and the hook is hung/locked at a striker when the pusher presses and pushes the first elastic member at the jamb and the cut part of the operating piece is placed at the neck part of the pusher. A knob case having a space is fixed at one side of the sliding door. The recovery force is transferred to the operating piece by an operating piece pushing unit, and the operating piece presses the second elastic member and releases the locked condition of the door. The operating piece pushing unit has a latch, a link, a slide piece(42), and an operating lever(43).

Description

Locking device for sliding doors {omitted}

1 is an exploded perspective view showing a conventional device

2A and 2B are longitudinal cross-sectional views of the coupled state of FIG. 1;

Figure 2a is a sliding door is open, the locked state is released

Figure 2b is a sliding door is closed, locked state

Figure 3 is an exploded perspective view showing the locking portion of the sliding door in one embodiment of the present invention

4A and 4B are longitudinal cross-sectional views of the coupled state of FIG. 3;

4a is a state in which the locked state of the sliding door is released

4b is a state in which the sliding door is locked

5 is a longitudinal sectional view showing an unlocking part of the present invention;

5a is a state in which the sliding door is locked

Figure 5b is a state in which the locked state of the sliding door is released by the pull operation of the handle

Figure 6 is a longitudinal cross-sectional view showing another embodiment of the present invention

7 is a cross-sectional view taken along the line A-A of FIG.

Explanation of symbols for the main parts of the drawings

12 housing 17 pusher

18: first elastic member 19: working piece

20: second elastic member 21: striker

22: hook 23: protrusion

32: locking part 33: unlocking part

34: handle case 36: handle

40: latch 41: link

42: slide piece 43: operating lever

44: turning 46: roller

47: wire

The present invention relates to a locking device of a sliding door, and more particularly, to a locking device of a sliding door installed between a living room and a living room.

In general, the sliding door partitioning the indoor and outdoor is provided with a locking device to prevent entry from the outside while the door is closed.

In the conventional sliding doors, the locking ring and the locking piece are respectively fixed to the overlapping part of the door so that the locking ring can be hooked to the locking piece in the closed state to act as a locking device.

However, such a locking device may or may not be able to hang the hook on the hook according to the locking hook and the fixing position of the hook and the degree of assembly of the door.

In other words, if the fixing position of the hook and the hook is incorrect, or the assembly of the door is poor, the hook may not be hooked on the hook, and the parts of one of the hook and the hook may be inadvertently in use. Even if this was broken there was a closure that does not act as a lock.

In addition, a separate handle had to be attached to the door for smooth opening and closing operation apart from the locking device.

Accordingly, in view of the above problems, the patents developed and filed by the applicant have been disclosed as 10-2006-23498.

1 is an exploded perspective view of a conventional apparatus, and FIGS. 2A and 2B are longitudinal cross-sectional views of the coupled state of FIG. 1, in which a space portion 14 communicating with a horizontal incision groove 13 is formed on an upper portion of the housing 12. At a point perpendicular to the horizontal incision groove 13 connected horizontally with the space portion, a vertical incision groove 16 communicating with the accommodation space 15 is formed.

The pusher 17 having the jaw portion 17a and the neck portion 17b is elastically installed by the first elastic member 18 in the space portion 14 so as to be sunk through the horizontal incision groove 13. The operating piece 19 is elastically installed by the second elastic member 20 on the vertical incision groove 16 by the second elastic member 20 and moves up and down according to the pressing operation of the pusher 17. The horizontal surface 19a is connected to the seating surface 12a located at the bottom of the housing 12.

A hook that is applied to the striker 21 when the operating piece 19 is located at the top dead center by being exposed to the outside of the housing 12 to the operating piece 19 that is elastically installed by the second elastic member 20 and moves up and down. When the operation piece 19 is located at the bottom dead center at the point where the hook 22 is formed integrally and the predetermined distance from the hook, it is supported by the jaw portion 17a of the pusher 17 and is at the top dead center. When positioned, a protrusion 23 having an incision 23a fitted to the neck portion 17b is formed, and a latch jaw 25 is formed on one side of the protrusion to catch the latch 24.

In addition, the guide pin 26 is fixed to the housing 12 to which the operating piece 19 is connected, and a vertical long hole 27 is formed in the operating piece 19 to which the guide pin is fitted. The operating piece 19 moves stably during the up and down movement.

The key groove 24a is formed in the latch 24 for releasing the locking state of the sliding door, and the locking state of the sliding door is released as the latch 24 is rotated by the key 28.

Therefore, while the locking state of the sliding door 31 is released by the key 28 and the sliding door is opened, the latch 24 is maintained in a horizontal state as shown in FIG. It is located at the bottom dead center while compressing the elastic member 20, and the horizontal surface 19a of the operating piece 19 is connected to the seating surface 12a of the housing 12.

Accordingly, the pusher 17 located in the space portion 14 is advanced by the first elastic member 18 so that the tip portion is exposed to the outside of the housing 12, so that the protrusion 23 formed in the operating piece 19 is formed. The upper surface is held in a state of being caught by the jaw portion 17a of the pusher 17.

In this state, even if the operating piece 19 is forcibly raised, the upper surface of the protrusion 23 is placed on the jaw portion 17a of the pusher 17, and thus the position of the operating piece is not changed, so that the housing 12 is closed in the process of closing the sliding door. There is no fear that the hook 22 exposed to the outside of the ()) hit the striker 21.

When the pusher 17 is exposed to the outside of the housing 12 and the sliding door 31 is closed while the operation piece 19 is located at the bottom dead center, the door 17 is fixed to the door holder 37 at the time when the sliding door is almost closed. Since the pusher 17 is pressed by the striker 21, the pusher is received into the housing 12 while compressing the first elastic member 18.

When the pusher 17 is accommodated inside the housing 12, the jaw portion 17a of the pusher 17 is pushed into the space portion 14, and the protrusion 23 formed on the operating piece 19 is locked. Since the operating piece 19 is raised by the restoring force of the second elastic member 20, the protruding portion 23 is located in the receiving space 15, so that the operating piece 19 of the operating piece 19 as shown in FIG. The hook 22 is caught by the striker 21 to maintain the locked state.

In such a state, in order to release the locking state of the sliding door, the key 28 is inserted through the key hole 29 located in the room, and the latch 24 is rotated in the clockwise direction. ) Is forced to descend while compressing.

Accordingly, the pusher 17 accommodated in the space 14 while compressing the first elastic member 18 is exposed to the outside through the horizontal incision groove 13 with the restoring force of the first elastic member 18. The jaw portion 17a of (17) supports the upper surface of the protrusion 23 formed on the operation piece 19 to maintain the unlocking state of the sliding door 31, so that the user can open the sliding door.

However, this conventional locking device has the advantage that it can always maintain a constant locking state even if a slight error occurs in the fixed position of the striker because the hook is caught by the striker as the pusher is pushed by the striker when the sliding door is closed. However, since the key must be present in order to release the locking state of the sliding door, if the key is inadvertently lost, there is a closure that cannot be released quickly.

In addition, even if there is a key, in order to open the sliding door, it is necessary to release the locked state of the door and then push the sliding door to one side by using a separate handle, which is inconvenient in use due to the opening of the door.

The present invention has been made to solve such a conventional problem, the object is to improve the structure to release the locked state of the door by the pull operation in the gripped state.

According to an aspect of the present invention for achieving the above object, a pusher having a jaw portion and a neck portion is installed in a housing fixedly installed in the sliding door so as to be protruded horizontally by the restoring force of the first elastic member, When the operating piece having a hook and an incision is installed to be lifted and lowered by the restoring force of the second elastic member, the pusher is pressed on the door sill while the first elastic member is pressed while the cutout of the operating piece is located at the neck of the pusher. In the locking device of the sliding door that the operating piece is raised so that the hook is caught on the striker to maintain the lock state, the handle case having a space portion is fixed to one side of the sliding door, and the handle case is held in front of the handle coupled with a pin It is installed so that it can be pulled and at the same time has a restoring force by the third elastic member, The force is referred to the work piece is transferred to the work piece by means of sliding contact pull lock, characterized in that arranged to the work piece is pulled off the first contact, while compressing the second elastic member lock apparatus is provided.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 to 5 as an embodiment.

Figure 3 is an exploded perspective view showing a locking portion of the sliding door in one embodiment of the present invention, Figures 4a and 4b is a longitudinal cross-sectional view of the engaged state of Figure 3 and Figure 5 is a longitudinal cross-sectional view showing the unlocking portion of the present invention, the present invention sliding The door 31 is composed of a locking portion 32 to maintain a locked state in the closed state, and a unlocking portion 33 to release the locked state of the sliding door.

As the configuration of the locking portion 32, a pusher having a jaw portion 17a and a neck portion 17b in the interior of the housing 12 fixed to the sliding door 31 as shown in Figs. An operating piece 19 having a hook 22 and a cutout 23a is installed at a lower portion of the pusher, and the lower side of the pusher is installed 17 so as to be horizontally mounted by the restoring force of the first elastic member 18 such as a leaf spring. It is installed to be able to lift and lower by restoring force of the second elastic member 20 such as the coil spring, so that the pusher 17 is pressed against the door post 37 while pressing the first elastic member 18 to actuate the operation piece 19. When the cutout portion 23a of the) is positioned at the neck portion 17b of the pusher 17, the operating piece 19 is raised by the restoring force of the second elastic member 20 so that the hook 22 is the striker 21. ) To keep the lock.

On the other hand, as the unlocking portion 33, a handle case 34 having a space portion 34a is fixed to one side of the sliding door 31, and one end is fixed to the handle case 34. The handle 36 coupled to the pin 35 is installed to be pulled forward to have a restoring force by the third elastic member 38. The force is actuated by pulling the handle 36. It is transmitted to the operation piece 19 by the pulling means, and the operation piece 19 is configured to be pulled while compressing the second elastic member 20.

3 and 5, the latch 40 is rotatably installed around the pin 39 in the sliding door 31, as shown in FIGS. 3 to 5. A hinge 41 coupled between the one end of the rod and the rod 36a, the link 41 for pivoting the latch as the handle 36 is pulled, and installed in the sliding door so as to be lifted and lowered so that one surface of the latch is connected. The slide piece 42 which has a 42a, and the hook 43a formed at the other end and fixed to the said slide piece are comprised by the operation lever 43 fitted to the protrusion 44 of the operation piece 19. As shown in FIG. .

At this time, the protruding pin 48 is fixed to the rod 36a so that the third elastic member 38 has a compressive force as the handle 36 is pulled out.

One embodiment of the present invention having such a configuration can maintain the locking state of the sliding door even if only one place is installed in the central portion of the sliding door 31, when the sliding door 31 is large, the upper, lower of the sliding door It is more desirable to keep the door locked at.

To this end, the housing 12 in which the pusher 17 and the operating piece 19 are installed is installed on the upper and lower portions of the sliding door 31, respectively, and the respective operating pieces (above and on the lower portion of the slide piece 42). While fixing the operation lever 43 to which the hook 43a is fitted to the projection 44 formed at the 19, the door holder 37 fixes the striker 21 to which the respective hooks 22 are fitted, and the sliding door 31 By the operation of pulling the handle 36 is installed in the center of the) was configured to release the lock on the upper and lower portions of the sliding door 31.

In this case, the two operating levers 43 fixed at both ends of the slide piece 42 move downwards the operation piece 19, respectively, so that the locking parts are installed on the upper and lower parts of the sliding door 31. Strikers 21 fixed to the upper and lower portions of the 32 and the door post 37 should be installed as shown in FIG. 4A.

Figure 6 is a longitudinal cross-sectional view showing another embodiment of the operating piece pulling means applied to the present invention and Figure 7 is a cross-sectional view taken along line A-A of Figure 6, the operating piece pulling means is a shaft (inside the sliding door 31) 45 and a roller 46 rotatably installed at one end, and a wire 47 having one end fixed to the rod 36a of the handle 36 and fixed to the operating piece 19 via the roller 46. It is.

In another embodiment of the operation piece pulling means, as in one embodiment, it is possible to maintain the locking state of the sliding door even if only one place is installed at the center of the sliding door 31, but when the sliding door 31 is large, the sliding door More preferably, the door is kept locked at the bottom of the door.

To this end, the housing 12 in which the pusher 17 and the operation piece 19 are installed is installed on the upper and lower portions of the sliding door 31, respectively, and the shaft 45 is located inside the sliding door 31. A pair of rotating rollers 46 is installed, and two wires 46 are fixed to the rod 36a of the handle 36 and each wire is fixed to the operating piece 19 via the rollers 46. By locking the handle 36 to the upper and lower parts of the sliding door was configured to be released.

In this case, the operation piece 19 positioned at the upper side is pulled downward by the pulling operation of the handle 36, and the operating piece 19 positioned at the lower side is lifted upward. And the locking portion 32 and the striker 21 to be installed on the upper portion of the door holder 37 should be installed as shown in Figure 4a, the locking portion 32 is installed on the sliding door 31 and the lower portion of the door holder 37 and The striker 21 should be installed to face in the opposite direction to FIG. 4A.

Referring to the operation of the present invention configured as described above is as follows.

First, as shown in FIGS. 4B and 5A, when the sliding door 31 is closed and the pusher 17 is accommodated in the space 14 while compressing the first elastic member 18, the cutout 23a of the operating piece 19 is closed. ) May be located at the neck 17b of the pusher 17, so that the operating piece 19 is raised by the restoring force of the second elastic member 20, so that the hook 22 of the operating piece 19 is a striker ( 21) is locked to maintain the locked state of the sliding door (31).

Therefore, even if an external intruder lifts the sliding door upward to forcibly release the locked state of the sliding door 31, the intruder cannot release the locked state of the sliding door.

As described above, when releasing the locked state of the sliding door while the sliding door 31 is locked, and simultaneously opening the sliding door 31, the sliding door 31 is pushed forward and the sliding door 31 is pushed to one side. The door opens.

That is, when the handle 36 is pulled forward as shown in FIG. 5B while the sliding door 31 is locked, as shown in FIGS. 4B and 5A, the handle 36 pulls the pin 35. While rotating to the center, the third elastic member 38 in the space 34a of the handle case 34 is compressed, and a link 41 hinged to the tip of the rod 36a holds the latch 40. Since the latch 40 is connected to the lower end surface of the through hole 42a, the slide piece 42 is pressed while rotating about the pin 39. FIG.

Accordingly, the slide piece 42 is lowered in the direction of the arrow, so that the operation lever 43 fixed to the slide piece is lowered together with the slide piece.

When the operation lever 43 is lowered by the operation as described above, the hook 43a formed on the operation lever is fitted to the projection 44 of the operation piece 19 so that the operation piece 19 lowers the operation lever 43. As a result, the lowering amount is lowered together, and thus the hook 22 fitted to the striker 21 exits the striker as shown in FIG. 4A to release the locking state of the sliding door 31.

When the sliding door 31 is pushed to one side while the sliding door is in the locked state by the pulling operation of the handle 36, the sliding door is opened, from the handle 36 which was being pulled in the opening door. When the external force is removed, the handle 36 is reduced to a state as shown in FIG. 5A by the restoring force of the third elastic member 38.

As described above, in the state in which the sliding door 31 is opened, the first elastic member 18 is compressed because the operating piece 19 is lowered to the bottom dead center while compressing the second elastic member 20 as shown in FIG. 4A. While the pusher 17 positioned in the space portion 14 is exposed to the outside of the housing 12, the upper surface of the protrusion 23 formed on the operating piece 19 is caught by the jaw portion 17a of the pusher 17. Will remain true.

In this state, even if the operating piece 19 is forcibly raised, the upper surface of the protrusion 23 is placed on the jaw portion 17a of the pusher 17, and thus the position of the operating piece is not changed, so that the housing 12 is closed in the process of closing the sliding door. There is no fear that the hook 22 exposed to the outside of the) may strike the striker 21.

On the other hand, when the pusher 17 is exposed to the outside of the housing 12 and the sliding door 31 is closed with the operation piece 19 located at the bottom dead center, the door 17 is fixed to the door holder 37 at the time when the sliding door is almost closed. Since the pusher 17 is pressed by the striker 21, the pusher 17 is compressed into the housing 12 while compressing the first elastic member 18, so that the protrusion 23 formed in the operating piece 19 is formed. The locking state is released, whereby the operating piece 19 is raised by the restoring force of the second elastic member 20 so that the protrusion 23 is located in the neck portion 17b. Hook 22 of the hook is caught by the striker 21 to maintain the locked state.

On the other hand, the locking state of the sliding door is made in the same manner as in the embodiment in the case of the operation piece pull means is composed of a wire 47 and 6 and 7.

However, when pulling the handle 36 to release the winding state of the sliding door 31 is fixed to the tip of the rod (36a) the wire 47 wound on the roller 46 is pulled to the operating piece ( 19 is pulled downward, and the operating piece 19 located at the bottom is lifted upward, so that the hook 22 of the operating piece 19 can be detached from the striker 21 at the same time.

Thereafter, since the operation is the same as the operation of the embodiment, a detailed description thereof will be omitted.

As described above, in the present invention, when the hook of the operating piece is caught by the striker and locked, only by pulling the handle to release the locking state of the sliding door, the operating piece which is located at the top dead center by the operating piece pulling means is lowered to the sliding door. Since the unlocked state is released, the sliding door can be pushed to the side to open the door, and accordingly, it is possible to release the locked state of the sliding door more conveniently than the conventional device which releases the locked state by using a separate key.

In addition, since the sliding door is opened by one operation of pushing the handle toward the side while pulling the handle forward, the opening of the sliding door is also easily obtained.

Claims (5)

A pusher having a jaw part and a neck part is installed in the housing fixedly installed in the sliding door so that the pusher having the jaw part and the neck part can be projected horizontally by the restoring force of the first elastic member, and the lower part of the pusher has a working piece having a hook and an incision in the second elastic member. When the incision part of the operating piece is located on the neck of the pusher as the pusher compresses the first elastic member to the doorpost by the restoring force of the pusher, the moving piece is raised and the hook is caught by the striker to lock the state. In the locking device of the sliding door to be maintained, the handle case having a space portion is fixed to one side of the sliding door and the handle case is installed so as to pull the handle coupled to the front end by a pin and at the same time by the third elastic member As the handle is pulled so that it has a restoring force, the force is transmitted to the work piece by the work piece pulling means. Air sliding contact to lock the work piece, wherein the contact is configured to release the pulled while compressing the second elastic members locked. The method of claim 1, The actuation piece pulling means includes a latch rotatably installed around a pin inside the sliding door, and a link coupled between the end of the latch and the rod to hinge the latch as the handle is pulled, and inside the sliding door. Locking sliding door, characterized in that the slide piece is provided to be raised and lowered, the slide piece having a through-hole connected to one side of the latch, and the engaging lever is fixed to the slide piece and the hook formed at the other end is fitted to the projection of the operating piece. Device. The method of claim 2, The pusher and the operating piece housing are installed on the upper and lower parts of the sliding door, respectively, and the upper and lower parts of the sliding piece are fixed to the operation levers to which the hooks are formed on the projections formed on the respective operating pieces, and at the same time, the hooks are hooked to each door. Locking device of the sliding door, characterized in that the locking state is released from the upper, lower portion of the sliding door by the operation of pulling the handle installed in the center of the sliding door by fixing the striker. The method of claim 1, The working piece pulling means is a roller of a sliding door, characterized in that consisting of a wire rotatably installed around the shaft inside the sliding door, and one end of which is fixed to the rod of the handle and fixed to the working piece via the roller. The method of claim 4, wherein The pusher and the operating piece housing are installed on the upper and lower portions of the sliding door, respectively, while the hooks formed on the operating piece face each other, and at the same time, on the doorposts, the striker is hooked on the lower part of the door and the shaft inside the sliding door. Install a pair of rollers that rotate around the center, and fix the two wires to the rod of the handle, and each wire is fixed to the working piece through the rollers by pulling the handle installed at the center of the sliding door. Locking device of the sliding door, characterized in that configured to be released from the upper, lower locking door.

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