KR100633005B1 - Sliding Door Locks - Google Patents

Abstract

The present invention relates to a locking device of a sliding door installed between the living room and the hope, even if an error occurs in the fixed position of the striker to hold the hook is locked, while maintaining the locked state of the hook in a stable state and at the same time the door upwards Even if it is lifted, the door is not separated from the door frame so that the outside intruder is not allowed to enter due to the separation of the door.

To this end, the housing 12 is provided with a space portion 14 communicating with the horizontal incision groove 13, a vertical incision groove 16 communicating with the receiving space 15, and a seating surface 12a. A first elasticity installed in the formed space and sliding left and right and provided with a jaw portion 17a and a neck portion 17b, and a first elasticity provided between the housing and the pusher to bias the pusher toward the horizontal incision groove. The latch 18 is formed at the same time as the member 18 and the protrusion 23 having the incision 23a into which the hook 22 is formed and parallel to the outer portion of the housing are formed. And a working piece 19 in which a vertical long hole 27 is fitted to a guide pin 26 fixed to the housing 12 so as to be movable in a direction orthogonal to the pusher 17. A second elastic member 20 installed between the second elastic member 20 to bias the operation piece upward, and positioned below the latch jaw; And a latch (24) is installed to lower the work piece in accordance with the rotation to release the sliding contact the locked state, it is configured as a cover 29 for closing one side of the housing by a fastening member (30).

Description

Locking device for sliding doors {omitted}

1A and 1B are longitudinal cross-sectional views showing a conventional apparatus,

Figure 1a is a sliding door is opened, the locked state is released

Figure 1b is a sliding door is closed, locked state

2 is an exploded perspective view showing an embodiment of the present invention

3A and 3B are diagrams illustrating the coupling state of FIG. 2.

Figure 3a is a sliding door is open, the locked state is released

3b is a sliding door is closed, locked state

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Explanation of symbols for main parts of the drawings

12: housing 13: horizontal incision

14: space part 15: accommodation space

16: vertical incision 17: pusher

17a: jaw l7b: neck

19: Operation 21: Striker

22: hook 23: protrusion

23a: incision 24: latch

25: latch jaw 25a: locking groove

28: tall

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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, depending on the locking ring and the fixing position of the locking piece and the degree of assembly of the door can be hooked to the locking piece, or can not be hooked.

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 caught on the hook, and the parts of one of the hook and the hook may be inadvertently in use. Even if 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.

Accordingly, in view of the above problems, as shown in FIGS. 1A and 1B, a locking device that simultaneously performs a handle and a locking role has been developed and used. The configuration thereof is as follows.

In the housing 1, a handle 3 having a shaft 2 integrally formed therein is rotatably installed, and a hook 5 that emerges through a hole 4 formed in the housing is provided inside the housing 1. Rotating piece (6) formed integrally is rotatably installed around the rotating shaft (7), and a link (8) for transmitting the rotational force of the handle (3) to the rotating piece (6) is connected between the shaft and the rotating piece. It is.

One end of the link (8), which serves as described above, is coupled to the shaft (2) by a pin (9), and the movable pin (10) fixed to the other end of the link (8) has a long hole formed in the rotating piece ( 6a), the movable pin 10 is also simultaneously inserted into the guide groove (1a) formed in a curved shape in the housing (1) to guide the guide groove (1a) together with the rotating piece (6) when the shaft (2) is rotated To move along.

In the state as illustrated in FIG. 1A, the hook 5 formed on the pivoting piece 6 is accommodated in the housing 1 and the locking is released.

In this state, the door is closed by pushing the door while holding the handle 3 to close the door. When the door is completely closed, the handle 3 is rotated in the direction of the arrow of FIG. Since the fixed shaft 2 is rotated in a clockwise direction, the link 8 coupled with the pin 9 to the shaft is also going to rotate, but the other end of the link is movable pin 10 fixed to the other end of the link. Since the long piece 6a of this rotating piece 6 and the guide groove 1a formed in the housing 1 are simultaneously inserted, the rotating piece 6 is rotated counterclockwise about the rotating shaft 7.

Accordingly, the hook 5 of the rotating piece 6 housed inside the housing 1 is exposed to the outside through the hole 4 as shown in FIG. Done.

On the other hand, when the door 3 is pushed in the opposite direction in the state in which the handle 3 is held to open the door in the locked state, the movable pin 10 located on the upper portion of the guide groove 1a is rotated by the rotation of the shaft 2. Since the pivoting piece 6 is rotated while moving downward along the guide groove 1a, the door is opened as shown in FIG. 1a.

However, this conventional technology has caused a number of problems as follows.

First, if the striker holding the hook is locked on the upper side of the door frame, the hook cannot be caught on the striker, and the locking state cannot be maintained. On the contrary, if the striker is fixed on the lower side than the fixed position, the locking state becomes unstable. Since it is impossible to maintain a perfect locking state, the striker must always be fixed at the correct position. Accordingly, the work of fixing the striker is cumbersome, and thus the workability is reduced.

Second, when the hook is inadvertently exposed to the outside of the housing and the door is closed without knowing it, the hook or striker is broken because the hook hits the door frame in the process of closing the door.

Third, the locking device can be installed only when the width b of the door frame is large because the rotating piece is rotated by using the link. Therefore, when the width of the door frame is narrow, the locking device cannot be installed.

Fourth, productivity of the movable pin fixed to the link in the long hole of the rotating piece and the guide groove of the housing was difficult.

The present invention has been made to solve such a problem in the prior art, it is an object of the present invention to maintain a stable state of the hook even if an error occurs in the fixed position of the striker to hold the hook is locked. .

Another object of the present invention is to prevent the intruder from entering by the separation of the door so that the door is not separated from the door frame even if lifting the door upward.

According to an aspect of the present invention for achieving the above object, a housing provided with a space in communication with the horizontal incision groove and a vertical incision groove and the seating surface in communication with the receiving space, and installed in the space formed in the housing, A pusher which slides to the right and is provided with a jaw portion and a neck portion, a first elastic member installed between the housing and the pusher to bias the pusher toward the horizontal incision groove, and a hook formed and parallelly exposed to the outside of the housing It is provided with a projection having an incision in which the neck portion of the pusher is fitted, the latch jaw is provided with a working piece is installed so that the vertical long hole is fitted to the guide pin fixed to the housing to be movable in the direction orthogonal to the pusher, the housing and A second elastic member which is installed between the operating pieces and biases the operating piece upwards, and is installed below the latch jaw to rotate According to the present invention, a locking device for a sliding door is provided, comprising a latch configured to release the locking state of the sliding door by lowering the operating piece, and a cover closing one side of the housing by a fastening member.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 2 and 3.

Figure 2 is an exploded perspective view showing an embodiment of the present invention and Figures 3a and 3b is a combined state of Figure 2, the present invention is a space portion 14 in communication with the horizontal incision groove 13 in the upper portion of the housing 12 ) Is formed and a vertical incision groove 16 communicating with the receiving space 15 is formed at the orthogonal point of the horizontal incision groove 13 which is horizontally connected to the space.

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 configured to be connected to the seating surface 12a located below the housing 12.

As described above, the striker 21 when the operating piece 19 is located at the top dead center is 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. Hook 22 is formed integrally, and when the operation piece 19 is located at the bottom dead center at the point where the hook and the predetermined distance are located, it is caught and supported by the jaw portion 17a of the pusher 17 When positioned at the point, a protrusion 23 having an incision 23a fitted to the neck 17b is formed, and one side of the protrusion is formed with a latch jaw 25 for latching 24. .

At this time, the latching jaw 25 is provided with a locking groove 25a for engaging the latch 24 when the operating piece 19 is positioned at the top dead center to maintain the locked state of the sliding door 31.

This is to prevent the latch 24 from being caught in the locking groove 25a so as not to rotate even when the operating piece 19 is forcibly pressed downward while the locking door 31 is kept locked.

On the other hand, the guide pin 26 is fixed to the housing 12 to which the operating piece 19 is connected, and the operating piece 19 is formed with a vertical long hole 27 into which the guide pin is fitted. The operating piece 19 moves stably during the up and down movements, and at this time, the guide projection 19b at the bottom of the operating piece 19 allows the moving piece 19 to move up and down more stably. ) And a guide groove 12b into which the guide protrusion is fitted.

Accordingly, the guide pin 26 and the vertical long hole 27 and the guide protrusion 19b during the lifting and lowering movement of the operating piece 19 according to the release state of the pusher 17 and the release state of the latch 24. And the operating piece 19 is moved more stably by the guide groove (12b).

The key groove 24a is formed in the latch 24 for releasing the locking state of the sliding door, and as the latch 24 is rotated by the key 28, the locking state of the sliding door is released. 24a) can be made into "-" or "+" as needed.

The present invention configured as described above is completed by covering the cover 29 on one side of the housing 12 and fastening with a fastening member 30 such as a bolt.

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

First, 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 kept horizontal as shown in FIG. 3A. 2 Compression of the elastic member 20 is located at the bottom dead center, 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) may strike 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 lifted by the restoring force of the second elastic member 20, the protrusion 23 is located in the receiving space 15, and as a result, as shown in FIG. The hook 22 is caught by the striker 21 to maintain a locked state, which is formed with a cutout 23a in the protrusion 23 and a neck 17b into which the cutout is fitted. It is possible because there is.

As described above, when the operating piece 19 rises to the top dead center by the second elastic member 20, the latch 24 is positioned under the latch jaw 25. In a state where the operating piece 19 is forcibly rotated at an angle in the rising process and the operating piece 19 is located at the top dead center, the end of the latch 24 is fitted into the locking groove 25a formed in the latch jaw 25.

Accordingly, even if the operating piece is forcibly lowered to release the locking state of the operating piece 19, the end of the latch 24 is caught in the locking groove 25a of the latch jaw 25, so that the operating piece 19 Will not move.

In this state, when the key 28 is inserted through the key hole 38 located in the room to release the locking state of the sliding door and the latch 24 is rotated clockwise, the operating piece 19 is second elastic member 20. ) 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 actuating piece 19 to maintain the unlocked state of the sliding door 31, so even if the external force is removed from the latch 24, the actuating piece (19) does not rise.

In this way, if the door is kept unlocked, the user can open the sliding door.

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As described above, the present invention has several advantages as follows.

First, as the pusher is pushed by the striker when the sliding door is closed, the moving piece rises, so that the hook of the moving piece is configured to be caught inside the striker, so that even if a slight error occurs in the fixed position of the striker, it is always possible to maintain a constant locking state. It is possible to greatly improve the workability.

Second, a hook is hung on the bottom of the striker, preventing an outside intruder from lifting the sliding door upward to forcibly remove the sliding door from the door frame.

Third, since the operating piece is always located at the bottom dead center when the sliding door is open, there is no fear that the hook of the operating piece will hit the striker during the closing of the sliding door.

Fourth, as soon as the pusher and the operating piece are elastically installed by the first and second elastic members, the assembly is completed by simply positioning the latch and closing the cover with the cover, thereby greatly improving the assembling of the parts.

Fifth, since each part is located in a plane can be significantly reduced in width to minimize the width of the door frame.

Claims (5)

A housing having a space in communication with the horizontal incision groove, a vertical incision groove in communication with the accommodation space, and a seating surface, and a pusher installed in the space formed in the housing and sliding left and right, and having a jaw portion and a neck portion; And a first elastic member installed between the housing and the pusher to bias the pusher toward the horizontal incision groove, and a protrusion having a cutout to which the neck of the pusher is fitted at a parallel portion and a hook is formed to be exposed to the outside of the housing. It is formed and provided with a latching jaw is provided with a vertical long hole is inserted into the guide pin fixed to the housing to be movable in the direction orthogonal to the pusher, and is installed between the housing and the operating piece to facilitate the operating piece upward The second elastic member, and installed to be located below the latch jaw to lower the operating piece in accordance with the rotation to release the locking state of the sliding door The sliding contact locking device, characterized in that the latch consists of a cover that is closed by one side of the housing to the fastening member. The method of claim 1, And forming a key groove in the latch to lock the latch by the key. delete The method of claim 1, The guide groove is formed in the housing and the sliding piece of the sliding door, characterized in that the guide piece is inserted into the guide groove is formed to extend in the operating piece. The method of claim 1, Locking device of the sliding door, characterized in that the latching groove is formed in the latch jaw to hold the end of the latch in the locking state of the sliding door.

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