KR200241005Y1 - Sliding Door Locks - Google Patents

Abstract

The present invention relates to a locking device of a sliding door, and pulls the handle to open the door in the closed state, the door is automatically unlocked, and the door is automatically opened slightly from the door holder by the lever.

To this end, a support surface 12a, a stopper 12b, and a movable piece 12c, which are rotatably installed in the housing 1 and connected to the inner surface of the housing, are formed on the outer circumferential surface thereof so that the handle 3 is pushed in one direction. A cam plate 12 rotating only together with an insertion groove, an insertion groove 13a into which the movable piece of the cam plate is fitted, guided to the guider 14 when the cam plate rotates, and a hook 13 to move up and down, and the hook and A first elastic member 15 connected between the housings to hold the movable piece 12c of the cam plate to be connected to the connecting surface 13b of the hook, and rotatably installed around the pin 16 in the housing. A locking jaw 17a is formed in contact with the stopper formed on the cam plate, and a long hole 17b is formed at the other end thereof so that the link 17 rotates around the pin when the handle is pressed, and the pin 19 in the long hole of the link. The pusher 18 inserted into the horizontal motion and the link and the housing The second elastic member 21 which is installed between the gongs and reduces the link to the initial state when no external force is applied to the handle, and the through hole 11a fixed to the door holder 20 and caught by the hook 13 when the door is closed. ) Is composed of a striker 11 is provided.

Description

Locking device for sliding doors {omitted}

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 difficulty 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 20, 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 devised to solve such a conventional problem, and when the door is closed, the door is automatically opened and slightly opened from the door holder by pulling the handle to open the door. The purpose is to make it happen.

Another object of the present invention is to install the cam plate to be rotated in one direction only and the hook is configured to rotate freely when the external force is applied to the inclined surface, thereby preventing the hook from hitting 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 locking device of the sliding door configured to release the locking state of the door according to the pressing operation of the handle by rotatably installing the shaft of the handle on the housing, so as to be rotatable in the housing Installed on the outer circumferential surface is formed a support surface, a stopper and a movable piece connected to the inner surface of the housing to form a cam plate which rotates together in only one direction according to the pressing operation of the handle, and an insertion groove into which the movable plate of the cam plate is fitted to rotate the cam plate. A first elastic member guided by a guider to move up and down, a first elastic member connected between the hook and the housing to keep the movable plate of the cam plate connected to the connection surface of the hook, and rotatably installed around the pin in the housing; At one end, a locking jaw is formed in contact with the stopper formed on the cam plate. A linker which is formed to rotate about a pin when the handle is pushed, a pusher that is horizontally moved by being pinned to the long hole of the link, and is installed between the link and the housing so that the link is in an initial state when no external force is applied to the handle. A locking device for a sliding door is provided, comprising a striker having a second elastic member configured to reduce the pressure and a through hole fixed to the door holder and hooked when the door is closed.

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 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 11a: through hole

12: cam plate 12a: support surface

12b: stopper 12c: movable piece

13: Hook 13a: Insertion Groove

15: first elastic member 17: link

17a: Jam Jaw 18: Pusher

21: second elastic member

Hereinafter, with reference to Figures 2 and 4 showing the present invention as an embodiment in more detail as follows.

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 part 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, the shaft 2 of the handle 3 is rotatably installed in the housing 1, and the cam plate 12 that is rotated together in only one direction is fixed to the shaft according to the pressing operation of the handle 3. On the outer circumferential surface of the cam plate 12, a support surface 12a, a stopper 12b, and a movable piece 12c connected to the inner surface of the housing 1 are formed.

In addition, the hook 13 exposed to the outside of the housing 1 through the through hole 1b to one side of the cam plate is installed to be elevated along the guider 14, and the cam plate 12 is formed in the insertion groove 13a formed in the hook. The movable piece 12c formed in the upper and lower portions thereof is fitted so that the hook 13 is guided and lowered by the guider 14 as the cam plate rotates. The handle 3 is disposed between the hook 13 and the housing 1. The first elastic member 15, such as a coil spring, which holds the movable piece 12c of the cam plate 12 to be connected to the connection surface 13b of the hook 13 when no external force is applied thereto, is connected.

The insertion groove 13a formed in the hook 13 so that the movable piece 12c of the cam plate 12 is fitted is cut in a predetermined section downward.

This is to prevent the cam plate 12 from moving even when the hook 13 moves upward by the striker 11 at the time when the door is closed.

Although the cam plate 12 and the hook 13 may be formed integrally by an injection molded product, it is more preferable that a plurality of sheet-like sheets are laminated to increase durability.

A link 17 is installed in the housing 1 located above the cam plate 12 so as to be rotatable around a pin 16. A stopper formed in the cam plate 12 is formed at one end of the link 17. 12b) is formed in contact with the engaging jaw (17a) and the other end is formed with a long hole (17b), as the cam plate 12 is rotated by the pressing operation of the handle 3, the link 17 is centered on the pin 16 Thus, the cam plate 12 is rotated in the direction opposite to the rotation direction.

The stopper 12b formed on the cam plate 12 and the locking jaw 17a formed on the link 17 maintain a predetermined interval when no external force is applied to the handle 3.

This is to prevent the pusher 18 from moving until the locked state of the door by the hook 13 is completely released by the pulling operation of the handle 3 so that interference does not occur between them.

And the long hole (17b) formed in the link 17 is a pusher 18 is inserted into the pin 19 in a horizontal motion according to the rotational movement of the link 17, the door holder (20) hook 13 in the closed state The striker 11 provided with the through-hole 11a which hangs) is fixed.

When the external force is not applied to the handle 3 between the link 17 and the housing 1 rotated in the opposite direction by the stopper 12b according to the rotation of the cam plate 12, the link 17 is returned to its initial state. A second elastic member 21 such as a torsion spring for reducing is provided.

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

First, when the door is opened as shown in FIG. 3A and no external force is applied to the handle 3, the hook 13 is positioned at the bottom dead center by the first and second elastic members 15 and 21 to move the movable piece 12c. It is connected to this connection surface 13b, the link 17 keeps a vertical state, and one surface is connected to the inner surface of the housing 1, and the pusher 18 is maintaining the state accommodated in the housing 1 as much as possible.

As shown in FIG. 3A, when the cam plate 12 is positioned below the pusher 18 and the pusher 18 is positioned above, the support surface 12a formed on the cam plate 12 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 above the housing 1, the cam plate 12 is located on the upper side as shown in FIG. In the state where the bottom is located, the handle 3 should not be rotated when the door 3 is closed.

In this state, the handle 3 is gripped and then pulled in the closing direction of the door, so that the hook 13 exposed to the outside of the door starts to hit the through hole 11a formed in the striker 11 fixed to the doorpost 20. 13 moves upward while tensioning the first elastic member 15 by the inclined surface 13c, and passes through the through hole 11a to reach the closing point of the door 13 so that the hook 13 is first elastic member. The lower force is lowered to the bottom dead center by the restoring force of (15) so that the door remains closed.

In the operation as described above, the hook 13 is guided to the guider 14 formed in the housing 1 to perform a stable lifting movement, and the movable piece 12c formed on the cam plate 12 is formed on the hook 13. Although the insertion groove 13a is inserted into the insertion groove 13a, the insertion groove 13a is cut downward by the amount of the lifting of the hook 13, so that an external force acts on the cam plate 12 even when the hook 13 rises to the top dead center during the closing operation of the door. It doesn't work.

As the hook 13 passes through the through hole 11a of the striker 11, the door is completely closed, and thus the door is continuously opened without installing a separate locking device such as a door top. You will not be able to.

On the other hand, the grip (3) to hold the door to open the door in the locked state and then pull the handle (3) fixed by the cam plate 12 and the shaft (2) is rotated in the counterclockwise direction so that the insertion groove ( The door 13 is locked by the movable piece 12c which is in contact with the connecting surface 13b of 13a) and is positioned on the through hole 11a while pulling the first elastic member 15 to the top dead center. The state is released, and thus the door can be opened. At this time, the stopper 12b formed on the cam plate 12 is not in contact with the engaging jaw 17a of the link 17.

In this state, when the handle 3 is continuously pulled, the cam plate 12 is further rotated so that the stopper 12b is rotated in contact with the engaging jaw 17a of the link 17, so that the link 17 is second. While compressing the elastic member 21, it rotates clockwise around the pin 16. Accordingly, the pusher 18 is fitted into the pin 19 in the long hole 17b of the link 17, so that the cam plate 12 is rotated. The position of the pin is changed according to the rotation of the pusher 18 so that the pusher 18 accommodated in the housing 1 moves to the right in the drawing while pushing the door in the direction of opening the door, so that the door starts to open slightly as shown in FIG. 3C. .

As described above, the cam plate 12 is rotated by pulling the handle 3 to move the pusher 18 simultaneously while releasing the locked state of the door, and the operation of slightly opening the door applies the principle of the lever. Weak old people can easily open the door of the weight without the need for great force.

As such, when the door 13 is unlocked at the time of 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, the present invention automatically unlocks the door when the handle is pulled to open the door while the door is locked, and at the same time the door is slightly opened as the pusher moves forward by the principle of lever, 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 when the door is closed, which prevents the hook from being damaged. Lifting or horizontally moving the pusher also allows the locking device to be easily installed 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 support surface is rotatably installed in the housing and connected to an inner surface of the housing. A stopper and a movable piece are formed so that the cam plate rotates together in only one direction according to the pressing operation of the handle, and an insertion groove into which the movable piece of the cam plate is fitted is formed to be guided to the guider when the cam plate rotates, and the hook to move up and down, and the hook A first elastic member connected between the housing and the housing to hold the movable piece of the cam plate to be connected to the connection surface of the hook, and a locking step in which the stopper is formed in the housing to be rotatable about a pin and at one end thereof is in contact with a stopper formed on the cam plate. On the other end, a long hole is formed, which rotates around the pin when the handle is pressed. Is a pin, a pusher inserted into the long hole of the link to move horizontally, a second elastic member installed between the link and the housing to reduce the link to the initial state when no external force is applied to the handle, and fixed to the doorpost And a striker having a through hole hooked in the closed state of the door. The method of claim 1, And the cam plate and the link 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 insertion groove into which the movable piece of the cam plate is fitted is opened to one side.