KR20020043421A - Sliding Door Locks - Google Patents

Abstract

PURPOSE: A locking device for a sliding door is provided to easily open the door by even the old and the weak when pulling a handle of the door as locked, by automatically releasing the door and progressing a pusher in a principle of lever. CONSTITUTION: The locking device comprises a pivoting shaft(2) of a handle(3) inside a housing(1); a cam plate(13) fixed to the shaft(2); a first elastic component(14) between the cam plate(13) and the housing(1); a stopper(13b) integrated at lower portion of the cam plate(13); a hook(16) with protrusions(16a) below the cam plate(14) rotating around a center of the pin(15); a second elastic component(17) between the hook(16) and the housing(1). The second elastic component is for jointing the protrusions(16a) to the stopper(13b) and/or for reducing the hook(16) to its original state.

Description

Sliding door locks {.}

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 is hooked to the locking piece in the closed state to serve 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 operation apart from the locking device.

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 shown in FIG. 1A, the hook 5 formed on the pivoting piece 6 is accommodated in the housing 1 to release the lock.

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. The rotary piece 6 is rotated counterclockwise about the rotating shaft 7 because the rotary piece 6 is simultaneously fitted in the long hole 6a of the rotating piece 6 and the guide groove 1a formed in the housing 1.

As a result, the hook 5 of the rotation 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, such a conventional locking device has the following problems.

First, a relatively weak elderly person had a lot of difficulties in opening the door of the heavy body (about 60 -100kg) when the door was locked, and also damaged the wheels (not shown). When the door opening and closing operation is not smooth because there was a closed end that can not open and close the door further.

Second, if the door is broken and the opening / closing operation of the door is not smooth, the handle is rotated when the door of the weight is closed while the handle 3 is held, so that the hook 5 is exposed to the outside of the housing 1. It hits the striker 11 fixed to (12), and the hook 5 or the striker 11 was broken by this.

Third, when the hook 5 is inadvertently closed in a state in which the hook 5 is exposed to the outside of the housing 1, the above-described problems occur even when the door is closed.

Fourth, since the rotating piece 6 is rotated by using the link 8, the locking device can be installed only when the width b of the window frame is large. Accordingly, when the width of the window frame is narrow, the locking device can be installed. There was no.

Fifth, the assembly of the movable pin 10 fixed to the link 8 to the long hole 6a of the rotation piece 6 and the guide groove 1a of the housing 1 was difficult, and productivity fell.

The present invention has been made to solve such a problem in the prior art, the door is automatically opened slightly from the doorpost by the lever while the door is automatically unlocked by pulling the handle to open the door in the closed state. The purpose is to make it happen.

Another object of the present invention is to install the cam plate to be rotated in only one direction and the hook is configured to rotate freely when the external force is applied to the inclined surface to prevent the phenomenon that the hook is hit by the striker during the closing operation of the door. To make it possible.

According to an aspect of the present invention for achieving the above object, in the housing of the sliding door is configured to rotatably install the shaft of the handle to release the locking state of the door according to the pressing operation of the handle, in the housing rotatably Installed at one end of the support surface is connected to the inner surface of the housing, the bottom is formed with a stopper, the cam plate provided with a long hole, rotatably installed around the pin directly below the cam plate, and the support surface of the cam plate at the rear end A hook having a protrusion formed on the stopper in a state of being connected to the inner surface of the housing, and a first elastic member connected between the cam plate and the housing so that the support surface of the cam plate is connected to the inner surface of the housing when no external force is applied to the handle; When the external force is not applied to the hook is connected between the hook and the housing in a horizontal state The basement is composed of a second elastic member, a pusher inserted into the long hole formed in the cam plate to move horizontally, and a striker having a through hole that is fixed to the door holder and the hook is caught in the closed state of the door Is provided.

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

Figure 2 is an exploded perspective view showing the main part of the present invention

3A to 3C are combined state diagrams 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

3c is a state in which the pusher slightly opens the door while the hook is released by the rotation of the handle in the state that the sliding door is closed.

Figure 4 is a longitudinal cross-sectional view showing another installation state of the present invention

Explanation of symbols for main parts of the drawings

1 housing 3 handle

11: striker 13: campan

13a: support surface 13b: stopper

14 first elastic member 16 hook

16a: projection 17: second elastic member

18: pusher

Hereinafter, the present invention will be described in more detail with reference to FIGS. 2 and 4 as an embodiment.

Figure 2 is an exploded perspective view showing the main part of the present invention, Figures 3a to 3c is a combined state of Figure 2 and Figure 4 is a longitudinal cross-sectional view showing another installation state of the present invention, the same parts as the conventional configuration of the configuration of the present invention Are omitted and the same reference numerals will be given.

In the present invention, when the shaft 2 of the handle 3 is rotatably installed in the housing 1 and the cam plate 13 is fixed to the shaft, the handle 3 is maintained in a vertical state. As shown in the figure, the support surface 13a formed on the cam plate 13 is maintained in a state connected to the inner surface of the housing 1, and no external force is applied to the handle 3 between the cam plate 13 and the housing. When the support surface 13a of the cam plate 13 is connected to the inner surface of the housing 1, or the external force is removed from the handle, the first elastic member 14 for reducing the cam plate 13 to the initial state is connected. .

A stopper 13b is integrally formed on the lower portion of the cam plate 13, and the protrusion 16a of the hook 16 provided below the cam plate 13 so as to be rotatable around the stopper pin 15 is provided. The hook 16 and the housing 1 are connected to each other so that the hook 16a is connected to the stopper 13b by keeping the hook in a horizontal state when no external force is applied to the hook 16. The second elastic member 17 is connected to reduce the hook 16 rotated about 15 to an initial state.

Although the cam plate 13 and the hook 16 may be integrally formed by an injection molded product, it is more preferable that the cam plate 13 and the hook 16 are formed by stacking a plurality of sheet-like sheets in order to increase durability.

In addition, the long hole 13c formed in the cam plate 13 has a pusher 18 which is horizontally moved in accordance with the rotational movement of the cam plate 13 by a pin 19, and the door holder 12 has a hook (with the door closed). The striker 11 provided with the through-hole 11a which catches 16 is fixed.

The pusher 18 horizontally moving according to the rotational movement of the cam plate 13 is guided by the guide protrusion 1b formed integrally with the housing 1 so that a stable horizontal movement is achieved.

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

First, as shown in FIG. 3A, when the door is opened and no external force is applied to the handle 3, the support surface 13a formed on the cam plate 13 by the first and second elastic members 14 and 17 is the housing 1. Is connected to the inner surface of the hook 16, and the hook 16 is kept horizontal, and the protrusion 16a of the hook 16 is hung on the stopper 13b formed on the cam plate 13, and the pusher 18 is connected to the housing 1. It is kept as much as possible within).

As shown in FIG. 3A, the cam plate 13 is positioned at the upper side and the hook 16 is positioned at the lower side such that the support surface 13a formed on the cam plate 13 is connected to the inner surface of the housing 1 during the closing operation of the door. Since the handle 3 should not rotate so that the handle 3 should be positioned below the housing 1, the cam plate 13 is located at the lower side as shown in FIG. In the state where the) is positioned at the top, the handle 3 should not be rotated when the door 3 is closed.

In this state, the handle 3 is gripped, and the pull 16 is pulled in the closing direction of the door, and when the hook 16 hits the striker 11 fixed to the door post 12, the second elastic member 17 is tensioned by the inclined surface 16b. While rotating counterclockwise while passing through the through hole (11a) of the striker 11, the hook 16 is rotated in a direction away from the stopper (13b) formed in the cam plate 13 therebetween No interference occurs.

In addition, since the hook 16 is rotated while the inclined surface 16b of the hook 16 strikes the striker 11, the hook 16 is rotated so that the damage caused by the collision does not occur.

As such, when the hook 16 passes through the through hole 11a of the striker 11 and the door is completely closed, the external force (collision with the striker) acting on the hook 16 is removed and the second elastic member 17 is removed. Since the projection 16a rotates to a point where the protrusion 16a abuts on the stopper 13b by the restoring force of the hook 16, the hook 16 is caught by the striker 11 to maintain the locked state as shown in FIG. 3B.

Therefore, the door is not opened from the outside because the door is kept locked only by closing the door without installing a separate locking device such as a door lock.

Meanwhile, when the handle 3 is gripped and pulled to open the door in a locked state, the handle 3 fixed by the cam plate 13 and the shaft 2 rotates in a clockwise direction. The cam plate 13 fixed by (2) rotates clockwise with the handle while tensioning the first elastic member 14, whereby the stopper 13b formed on the cam plate 13 is a projection of the hook 16. Since the 16a is pushed, the hook 16 rotates counterclockwise around the pin 15 to release the locked state of the door.

At the same time, when the cam plate 13 rotates clockwise, the pusher 18 is inserted into the pin 19 in the long hole 13c formed in the cam plate 13, and the position of the pin varies according to the rotation of the cam plate 13. Since the pusher 18 housed in (1) pushes the door in the direction of opening the door while advancing to the right in the drawing, the door starts to open slightly as shown in Fig. 3C.

As described above, the cam plate 13 is rotated by pulling the handle 3 to move the pusher 18 at the same time while releasing the locked state of the door. Weak old people can easily open the door of the weight without the need for great force.

As such, when the door 16 is unlocked at the initial opening of the door and the door starts to open slightly by the advance of the pusher 18, the door of the weight body can be easily opened by the inertia force.

As described above, in the present invention, when the door is locked, the door is automatically unlocked when the handle is pulled to open the door, and at the same time, the door is slightly opened while the pusher is advanced by the lever principle, so that the elderly can easily The effect is to open the sieve door.

In addition, the hook that catches the striker and keeps the door locked is always installed so that the hook is hit by the striker during the closing operation of the door, which prevents the hook from being damaged. Rotating or horizontally moving the pusher also provides an effect of easily installing the locking device even when the window frame is small in width.

Claims (3)

A sliding door locking device configured to rotatably install a shaft of a handle in a housing to release a lock state of a door according to a pressing operation of the handle, wherein the supporting surface is rotatably installed in the housing and connected to an inner surface of the housing at one end thereof. And a stopper formed at a lower portion thereof, and a cam plate provided with a long hole, and rotatably installed around the pin directly below the cam plate, and at the rear end, a projection that is caught by the stopper while the support surface of the cam plate is connected to the inner surface of the housing. A first elastic member which is formed between the hook and the cam plate and the housing so that the support surface of the cam plate is connected to the inner surface of the housing when no external force is applied to the handle, and the external force is applied between the hook and the housing. A second elastic member for holding the hook in a horizontal state when not actuated, and a long hole formed in the cam plate. A pusher inserted into the horizontal movement, and a sliding contact fixed to the doorpost lock, characterized in that the door is composed of a through hole provided in the hook takes the closed state to the striker. The method of claim 1, And the cam plate and the hook are formed by stacking a plurality of sheet-like sheets. The method of claim 1, Locking device for a sliding door, characterized in that the guide protrusion is integrally formed in the housing so that the pusher for horizontal movement according to the rotational movement of the cam plate is guided by the guide protrusion.