KR101086277B1 - Autolocking Device of Sliding door - Google Patents

Abstract

The present invention relates to an automatic locking device for a sliding door, and the automatic locking device for a sliding door according to the present invention is installed in the door to be automatically caught by the latch installed in the door frame, and the locking device is unlocked by the rotation of the lever. The case 10 is installed on one side of the door; A rotating member 50 installed in the case 10 and rotated by the lever A; A pair of locking members 40 installed in the case 10 to rotate in the unlocking direction by the rotation of the rotation member 50; It is installed to slide in and out of the case 10, and includes a sliding member 20 is installed to be supported by the pair of locking member 40, the sliding member 20 of the pair Protruding out of the case 10 by rotating in the unlocking direction of the locking member 40 is characterized in that for moving the door in a direction away from the latch (B). Accordingly, by automatically closing the door and automatically setting the lock, it is possible to effectively prevent the intrusion of outsiders, and is provided in a symmetrical form in the direction in which the locking members face each other, so that the locking force of each locking member is provided on both sides of the latch. It may act in the inner direction of the latch may not be easily unlocked even when lifting the door, there is provided an automatic locking device for a sliding door that can be easily unlocked even when the lever is rotated small.

Automatic locking device, for sliding door, sliding, rotating member, crescent

Description

Automatic locking device for sliding doors {Autolocking Device of Sliding door}

The present invention relates to a locking device for a sliding door, and more particularly, to a sliding door automatic locking device that is installed on one side of the door to be locked at the same time the door is closed.

In general, sliding windows are installed on the wall of the building for the purpose of ventilation of the room, and thus a locking device is installed on the window for the purpose of preventing intruders from entering through the window.

1 is an exploded perspective view showing a conventional locking device and FIG. 2 is a longitudinal cross-sectional view of the coupled state of FIG. 1, in which a locking ring 2 is fixed to a window frame 1 with a screw 3 and a corresponding window frame frame ( 4) Or, the bracket (5) is fixed to the window by another screw (6), and the bracket (7) is provided with a screw (8) rotatably rotatable.

Therefore, in the state shown by the solid line of FIG. 2, even when the window is closed, the hook 7 is released from the hook 2 so that the window can be opened.

If you want to lock the window in such a state by rotating the hook (7) in the direction of the arrow to be fitted to the hook (2), such as a dashed line to maintain the locked state of the window so that the window can not be opened from the outside.

However, in the case of the lock device of a conventional sliding window, the window must be locked only when the user hangs the hook of the half moon type in the closed state of the window, so that the user can use the locking device because of the hassle due to the hassle. In many cases, the door is not locked, and thus, an intruder can easily enter through the unlocked sliding window.

Due to this problem, when the user moves the sliding window to the left and right to close it, a locking device of the sliding window in which the sliding window is fixed to the frame of the door has been proposed in Korean Utility Model Registration No. 339903.

Korean Utility Model Publication No. 339903 is fixed to a window frame and has a pedestal-shaped main body, a locking lever rotatably installed around the pin in the main body so that one end is exposed on the upper side of the pedestal formed on the main body, and the locking lever. And a coil spring provided between the main body and the coil spring for biasing the locking lever upward while no external force is applied to the locking lever, a cover fixed to a side of the main body by a screw to support the locking lever to the main body, and the window frame. A case coupled through a through hole formed perpendicularly to the fixed direction of the main body and fixed by a screw; One end of the cam rod is inserted and exposed to the outer portion of the case, the cam rod and the case Sliding window is composed of a coil spring installed between the coil spring to restore the cam rod to its initial position when no external force is applied to the cam rod, and a clamp formed in the window frame frame and a recess formed in the recess groove when the window is closed. Regarding the locking device, when the window is closed, the locking lever is inserted into the recess groove of the latch fixed to the window frame frame so that the locked state of the window is automatically maintained, thereby effectively preventing an external intruder from invading.

However, since the locking device of the window described above is fixed to one side of the latch of the window frame frame, when the window is moved up and down or when a momentary external force is applied to the window, the locking lever is separated from the latch ( There is a problem that the locked window is opened.

Accordingly, an object of the present invention is to solve such a conventional problem, to provide a sliding door locking device that can effectively prevent the intrusion of outsiders by automatically closing the door and setting the lock automatically.

In addition, another object of the present invention is that the locking member is provided in a symmetrical form in the direction facing each other so that the locking force of each locking member acts in the direction of the clasp on both sides of the clasp to lift the door or window or to the door or window The present invention provides an automatic locking device for a sliding door that can prevent the locking member from being separated from the latch even when a momentary external force is applied.

In addition, another object of the present invention is to provide an automatic locking device for a sliding door that can be easily unlocked even if the rotation angle of the lever is small.

The object is, according to the present invention, the locking device is installed on the door to be automatically caught on the latch installed in the door frame, the lock device is unlocked by the rotation of the lever, the case 10 is installed on one side of the door; A rotating member 50 installed in the case 10 and rotated by the lever A; A pair of locking members 40 installed in the case 10 to rotate in the unlocking direction by the rotation of the rotation member 50; The sliding member 20 is provided to slide in the inner and outer directions of the case 10, and is installed to be supported by the pair of locking members 40, wherein the sliding member material 20 is the pair Protruding out of the case 10 by rotating in the unlocking direction of the locking member 40 of the sliding member by the automatic locking device for sliding doors, characterized in that for moving the door away from the latch (B) Is achieved.

Here, the rotation member 50 is coupled to both sides of the rotation body 51 and the rotation body 51 which is installed to be coupled to rotate in the thickness direction of the case 10 of the case 10, It may include a first rotating part 52 and a second rotating part 53 formed to press and rotate the pair of locking members 40 in the unlocking direction, respectively.

In addition, the pair of locking members 40, one side of the locking portion 41 is formed to be caught by the latch (B), the other side is formed to contact the sliding member 20 is the sliding in the locked state A support 42 for supporting the member 20 in the inward direction of the case 10 may be formed.

At this time, the first receiving portion 44 for receiving the first pivoting portion 52 is formed on one side of the support of any one of the pair of locking member 40, the first rotation of the pivoting member 50 When the eastern portion 52 is pressed, a second accommodating portion 45 for accommodating the second pivoting portion 53 is formed at one side of the support of the other one of the pair of locking members 40. It is preferable to pressurize at the time of rotation of the 2nd rotation part 53 of the member 50. FIG.

On the other hand, the sliding member 20, the projection 20A protruding out of the case 10 when the pair of locking member 40 is rotated in the unlocking direction, and the case of the protrusion 20A It is coupled to the inner direction of the 10, and may include a body portion (20B) formed to abut the pair of the locking member (40).

In addition, the body portion 20B includes a seating portion 22 which is seated on the pivot member 50 when the sliding member 20 moves to the inside of the case 10, and both sides of the seating portion 22. Is coupled to, one side is formed to abut the inner side of the case 10, the other side includes a first side portion 24 and the second side portion 25 formed to abut the pair of the locking member (40). Can be.

In addition, the case 10 is installed to be coupled to rotate in the thickness direction, and is installed to abut one of the one side of the locking member 40 and one side of the rotation member 50 the rotation It may further include an interlocking member 70 for pressing the pair of locking members 40 in conjunction with the rotation of the member 50.

In addition, the interlocking member 70, the interlocking shaft 71 is provided between any one of the pair of locking member 40 and the rotating member 50, and one side of the interlocking shaft 71 Is coupled to the first interlocking portion 72 is installed to abut one side of the rotating member 50, and coupled to the other side of the interlocking shaft 71, any one of the pair of locking member 40 It may include a second interlocking portion (73) which is installed in contact with.

In addition, the rotation member 50 is coupled to the rotation body 51 is installed so as to rotate in the thickness direction of the case 10, and is coupled to one side of the rotation body 51, the rotation body 51 The second rotating part 53 for pressing and rotating any one of the pair of locking members 40 and the other side of the rotating body 51 during the rotation of the rotating body 51, the rotation of the rotating body 51 When the first interlocking portion 72 of the interlocking member 70 may be pressed to include a third rotating portion 54 for rotating.

In addition, a third accommodating part 46 may be formed at any one of the pair of locking members 40 to accommodate the second interlocking part 73 of the interlocking member 70.

In addition, the first elastic member 30, which is installed in the case 10, is installed to elastically support the sliding member 20 when the sliding member 20 moves inwardly of the case 10. It may further include.

On the other hand, the second elastic member 60 is installed in the case 10, the second elastic member 60 is installed to elastically support the pair of the locking member 40 when the pair of locking member 40 is rotated in the unlocking direction. ) May be further included.

According to the present invention, there is provided an automatic locking device for a sliding door that can effectively prevent the intrusion of outsiders by closing the door and automatically setting the lock.

In addition, the locking member is provided in a symmetrical form in the direction facing each other, the locking force of each locking member acts in the direction of the clasp on both sides of the clasp, even if lifting the door or window or applying a momentary external force to the door or window. There is provided an automatic locking device for a sliding door that can prevent the locking member from being separated from the latch.

In addition, there is provided an automatic locking device for a sliding door that can be easily unlocked even if the rotation angle of the lever is small.

Prior to the description, in the various embodiments, components having the same configuration will be representatively described in the first embodiment using the same reference numerals, and in other embodiments, different configurations from the first embodiment will be described. do.

Hereinafter, an automatic locking device for a sliding door according to a first embodiment of the present invention with reference to the accompanying drawings will be described in detail.

3 is an exploded perspective view of an automatic locking device for a sliding door according to a first embodiment of the present invention. Referring to FIG. 3, the automatic locking device for a sliding door according to the first embodiment of the present invention includes a lever A, a latch B, a case 10, a sliding member 20, and a first elastic member 30. , The locking member 40, the rotation member 50, and the second elastic member 60 are configured.

First, the lever (A) is extended to one side of the lever body (A1) to be inserted into the lever body (A1) and the rotating member 50 to be described later to transmit the force in one direction in the user gripping state It is composed of a hook portion (A2) formed.

That is, when the lever body A1 rotates in one direction while the hook portion A2 is inserted into the pivot member 50, the pivot member 50 is rotated by the pivot force transmitted by the lever A. do.

The latch B is a member installed in the door frame, and the latching portion B1 recessed to allow the locking member 40 to be described later is caught at both sides. That is, the pair of locking members 40 to be described later are held in the locked state by engaging the locking portion B1.

4 is a perspective view of the case of FIG. 3. Referring to FIG. 4, the case 10 is installed at one side of the door and may include a base 10A and a cover 10B.

The base 10A is in the form of a rectangular parallelepiped with one side open, which is opposed to the base portion 10a, the first side portion 10b extending upwardly from one side of the base portion 10a, the base portion 10a, and coupled to the first side portion 10b. The second side portion 10c, the base portion 10a and the second side portion 10c may be composed of a pair of third side portions 10d for connecting both sides.

Here, the base 10a is recessed in the inner central region, and the rotating member guide 16 is formed to be recessed to stably guide the rotation of the rotating member 50 to be described later.

In addition, the base portion 10a has a first fixing portion 19 formed at both ends thereof so as to be fixed to the door by using a predetermined fixing means in the outward direction of the case 10.

At this time, the first side surface portion 10b extends upward from one side of the base portion 10a and faces a wall 10B which will be described later. The first guide 18 is fixed at a constant height from the upper end of the central region. Protruding inwardly to the inner side) can be stably guided when the sliding member 20 to be described later moves in and out of the case (10).

In addition, a first rotation hole 15 is formed at the lower portion of the first guide 18 so that the rotation member 50 to be described later is coupled and rotated.

On the other hand, a pair of first coupling holes 13 are formed on both sides of the first rotation hole 15 so that the locking member 40 to be described later is coupled and rotated, and the pair of first coupling holes 13 The boss 14 is formed on each side such that the second elastic member 60 to be described later is coupled thereto. Here, the first coupling hole 13 and the first rotation hole 15 is provided in the form of a hole, but may be formed in the form of a groove in each wall surface as necessary.

Here, the second side surface portion 10c is a wall surface in a direction in which one end of the sliding member 20 protrudes, and is formed to face the base portion 10a. A sliding member 20 to be described later is formed in the central region of the case 10. The first opening 11 is formed to move inward and outward, and the second opening 12 is formed at both sides of the first opening 11 so that the locking member 40 to be described later protrudes and rotates.

In addition, the third side portion 10d is a wall surface connecting the base portion 10a, the first side portion 10b, and the second side portion 10c to secure the internal space of the base 10A. The second fixing part 17 is formed in a plurality of areas facing the cover 10B so that the cover 10B to be described later is coupled.

The cover 10B may be provided in a panel form, and a fixing hole 17a may be formed in an area corresponding to the second fixing part 17 of the base 10A, and may be coupled to the base 10A through the cover 10B. .

In addition, the first coupling hole 13 of the base 10A described above is provided on the surface opposite to the base 10A of the cover 10B so that the locking member 40 and the rotation member 50 which will be described later are stably supported and rotated. ) And the second coupling hole 13a and the second pivoting hole 15a are formed in an area where the first rotation hole 15 and the first rotation hole 15 face each other. In this case, the second coupling hole 13a and the second rotation hole 15a may be formed in the form of a groove.

In addition, the cover 10B has a second guide so as to stably move the inside and outside of the sliding member 20 together with the first guide 18 formed at the base 10A when the sliding member 20 to be described later is coupled. 18a is protruded.

Next, the sliding member and the first elastic member will be described. FIG. 5 is a perspective view of the sliding member of FIG. 3, and FIG. 6 is a rear perspective view of the sliding member and the elastic member of FIG. 3.

5 and 6, the sliding member 20 according to the first embodiment of the present invention includes a protrusion 20A and a body 20B.

The protrusion 20A is provided in a substantially hexahedral shape, and the guide groove 21 is provided at two sides of the protrusion 20A so as to contact the first guide 18 and the second guide 18a of the case 10. Is formed. That is, when the sliding member 20 is coupled to the inner side of the case 10, the sliding member 20 is in contact with the first guide 18, the first guide 18, and the second guide 18a. 18) and the second guide 18a can be moved in and out.

At this time, the size of the protrusion 20A is preferably smaller than the size of the first opening 11 formed in the first side portion 10b of the case 10, so it can be moved to the inside and outside of the case 10.

The body portion 20B includes a seating portion 22, a first side portion 24, and a second side portion 25, and is coupled to an inner side direction of the case 10 from the protrusion 20A, but will be described later. It is formed with a thickness t smaller than the thickness T of the protrusion 20A so as to secure the rotational region of the member 50.

As such, the rotation member 50 may be overlapped with a part of the sliding member 20 to minimize the thickness of the case 10 and may be compact.

The seating part 22 so that the sliding member 20 corresponds to the surface shape of the rotating body 51 of the rotating member 50 to be described later so that the sliding member 20 is seated on the rotating member 50 to be described later when moving to the inside of the case 10. Concave groove 22a is formed, and the lower side is formed in a straight shape so as to be stably supported on the inner wall surface of the case 10.

The first side portion 24 and the second side portion 25 are coupled to both sides of the rotation body 51, the lower side is the inner side of the case 10 when the sliding member 20 moves to the inside of the case 10 It is formed to be located on the same straight line with the lower side of the seating portion 22 so that it can be stably seated.

In addition, the upper side of the first side portion 24 and the second side portion 25 is formed to abut the locking member 40 to be described later, the sliding member 20 is moved to the inside of the case 10, the locking member 40 can be stably supported.

Meanwhile, as shown in FIG. 6, an elastic member accommodating part 23 may be formed on the rear side of the body portion 20B to accommodate the first elastic member 30 to be described later.

At this time, the bar is shown two elastic member accommodating portion 23 is shown, but a plurality dog may be formed so as to stably support the entire body portion (20B).

Next, the first elastic member 30 is a predetermined spring accommodated in the elastic member accommodating portion 23 of the sliding member 20 described above, and the sliding member 20 is inward of the case 10 (locking direction). When the elastic member is moved to the outside of the case 10, the elastic member is restored to move in the outer direction (unlocking direction) of the case 10 and is installed to move the above-described sliding member 20 to the outside of the case 10.

7 is a coupling diagram of the case and the sliding member. Referring to FIG. 7, the sliding member 20 is coupled to the guide groove 21 formed in the protrusion 20A so as to correspond to the first guide 18 and the second guide 18a, and thus to the inside and the outside of the case 10. When sliding, it can slide stably.

Next, the locking member will be described. 8 is a perspective view of the locking member of FIG. 3, and FIG. 9 is a schematic view of the locking member installed in the case.

8 and 9, the locking member 40 provided as a pair of the first locking member 40A and the second locking member 40B is installed at both sides of the rotation member 50 to be described later.

The upper side of each locking member protrudes to the outside of the case 10 so that the locking portion 41 is formed so as to be caught by the latch B, and the lower side is the first side portion 24 and the second side portion of the sliding member 20. (25) A support portion 42 formed to abut is formed.

At this time, the support member 42 is coupled to the coupling protrusions 13 and 13a formed in the base 10A and the cover 10B so that the locking member 40 is coupled in the thickness direction of the case 10 to rotate. 43) is formed.

When the pair of locking members 40 rotate in the locking direction through the support 42, the sliding member 20 is supported by supporting the first side portion 24 and the second side portion 25 in the inward direction of the case 10. ) Can be prevented from protruding to the outside by the elastic restoring force of the first elastic member (30).

In addition, the pair of locking members 40 are provided in a symmetrical form facing each other, so that the locking portions 41 formed on the locking members are caught in both directions of the latch B, and the latches B on both sides of the latch B are fixed. The locking force in the inward direction acts so that the unlocking is not easy even if the door itself is lifted in one direction.

Next, look at in detail with respect to each locking member. First, the first locking member 40A is formed at one side thereof with a first accommodating portion 44 recessed to receive the first pivoting portion 52 of the pivoting member 50 to be described later.

At this time, one side of the first accommodating portion 44 is preferably formed with an inclined surface 44a inclined in one direction so as to easily receive the rotational force of the first rotating portion 52 accommodated.

On the other hand, the second locking member 40B is formed with a second accommodating portion 45 recessed to receive the second pivot 53 of the pivot member 50, the lower side of the support portion to be described later.

Next, the rotating member 50 will be described. 10 is a perspective view of the rotating member of FIG. 3, and FIG. 11 is a schematic view of the rotating member installed in the case.

10 and 11, the rotating member 50 includes a rotating body 51, a first rotating part 52, and a second rotating part 53.

The rotating body 51 is provided in a cylindrical shape having a lever groove 51a for accommodating the lever A at the center thereof, and is formed in the thickness direction of the case 10, that is, the base 10A and the cover 10B. It is coupled to rotate inside the case 10 through the first rotation hole 15 and the second rotation hole 15a.

In addition, when the rotation body 51 is coupled to the case 10, it is secured to the stable rotation by being seated on the rotation member guide 16 formed on the base portion 10a of the case 10, the upper portion of the sliding member 20 The seating portion 22 is coupled to be seated.

The first rotating part 52 is coupled to the right side of the rotating body 51, the end of the first pressing portion in the form of a bar (bar) accommodated in the first receiving portion 44 of the first locking member (40A) 52a is extended.

At this time, the first pressing part 52a is installed to abut on the inclined surface 44a of the first accommodating part 44, thereby simultaneously rotating the rotating member 50 and pressing and rotating the first locking member 40A. It is preferable to be able.

That is, when the rotating body 51 rotates at a predetermined angle, the first pressing part 52a rotates inside the first accommodating part 44 and at the same time rotates the inclined surface 44a of the first accommodating part 44. By pressing, the first locking member 40A rotates in the unlocking direction.

The second pivot 53 is formed on the left side of the pivot body 51, the second pressing portion in the form of a bar (bar) is accommodated in the second receiving portion 45 of the second locking member (40B) at the end 53a is extended.

In this case, the second pressing part 53a may be installed to be in contact with one side of the above-described second accommodating part 45, and may rotate by pressing the second locking member 40B simultaneously with the rotation of the rotating member 50. desirable.

That is, when the rotating body 51 is rotated at a predetermined angle, the second pressing part 53a rotates inside the second accommodating part 45 and simultaneously presses one side of the first accommodating part 44. The second locking member 40B rotates in the unlocking direction.

As a result, the rotating member 50, which has received the rotational force in the unlocking direction by the lever A, rotates in the unlocking direction, and at the same time, the first rotating part 52 is located on one side of the first locking member 40A. It is accommodated and pressurized, and the second pivot 53 rotates by pressing the lower portion of the second locking member 40B. By using this, the rotational angle of the rotational member 50 can only be unlocked and unlocked only when the rotational angle is formed around 40 ° to 45 ° in the conventional locking device, even if the rotational angle of the rotational member 50 is only 10 ° to 20 °. Rotating (40) enables locking and unlocking.

Next, the second elastic member will be described. 12 is a schematic view of a second elastic member installed in the case of FIG. 3.

Referring to FIG. 12, the second elastic member 60 is a predetermined spring, which is installed inside the case 10, and may be coupled to the boss 14 provided in the case 10, and one side of the second elastic member 60 is a case 10. ) Is supported on the inner predetermined portion, and the other side is installed to elastically support the pair of locking members 40 in the unlocking direction.

That is, the second elastic member 60 is elastically compressed when the locking member 40 rotates in the unlocking direction, and is elastically restored when locking, thereby rotating the locking member 40 in the locking direction.

The operation of the first embodiment of the above-described automatic locking device for sliding door will now be described. 13 to 15 is an operation state diagram of the automatic locking device for a sliding door according to the first embodiment of the present invention.

FIG. 13 shows the locking portion 41 of the pair of locking members 40 accommodated in the locking portion B1 of the latch B so that the locking device is locked.

When the rotating member 50 rotates in the "C" direction by the lever A in such a locked state, as shown in Figure 14, the first rotating portion 52 and the second rotating portion 53 of the rotating member 50 ) Presses the pair of locking members 40 in the "D" direction, which is the unlocking direction, so that the pair of locking members 40 are released from the locking portion B1 of the latch B and are in the unlocked state. .

Then, as the pair of locking members 40 rotate in the unlocking direction, as shown in FIG. 15, the sliding member 20 supported by the pair of locking members 40 inside the case 10 is removed. 1 is elastically restored by the elastic member 30, the sliding member 20 is moved in the "E" direction of the outer direction of the case 10 and at the same time to press the latch (B).

As such, the sliding member 20 presses the latch B so that the door in which the case 10 is installed moves in the "F" direction away from the door frame in which the latch B is installed. It is unlocked.

In addition, the change from the unlocked state to the locked state is to push the door in which the case 10 is installed in the direction of the door frame to abut, the sliding member 20 is moved to the inside of the case 10, a pair of The locking member 40 is elastically restored by the second elastic member 60 so that each locking portion is caught by the locking portion B1 of the latch B so that the locking member 40 is locked.

On the other hand, the rotating member 50 may be installed to rotate to the original position with the lever (A) to the original position through the predetermined spring provided in the lever (A) after rotating in the unlocking direction.

In this way, locking and unlocking can be done automatically.

In addition, by the configuration of the automatic locking device according to the present invention, even if the rotation angle of the lever (A) smaller than the conventional one, the unlocking becomes easy.

Now, an automatic locking device for a sliding door according to a second embodiment of the present invention will be described.

Compared to the first embodiment, the second embodiment according to the present invention is deformed in the form of the locking member and the rotating member, interlocking members are interposed between the modified locking member and the rotating member, and the installation position of the second elastic member. Is changed.

Only the parts changed in comparison with the first embodiment will be described in detail, and other detailed descriptions of other parts formed at the same or almost the same level as the first embodiment will be omitted.

16 is a schematic diagram of an automatic locking device for a sliding door according to a second embodiment of the present invention.

Referring to FIG. 16, the rotating member 50 includes a rotating body 51, a second rotating part 53, and a third rotating part 54. Here, the rotational body 51 and the second rotational portion 53 is the same configuration as the first embodiment, so detailed description thereof will be omitted.

The third rotating part 54 is coupled to the left side of the rotating body 51 and is formed to be in contact with the interlocking member 70 to be described later.

Next, the pair of locking members 40 according to the second embodiment includes a first locking member 40A and a second locking member 40B. At this time, the second locking member (40B) is the same configuration as the first embodiment and a detailed description thereof will be omitted.

Here, the third locking portion 46 is formed in the first locking member 40A to accommodate one side of the second interlocking portion 73 of the interlocking member 70 to be described later.

Next, the linkage member 70 according to the second embodiment includes a linkage shaft 71, a first linking portion 72, and a second linking portion 73.

The interlocking shaft 71 is positioned between the third pivoting portion 54 and the first locking member 40A, and is coupled to rotate in the thickness direction of the case 10.

The first interlocking portion 72 is coupled to one side of the interlocking shaft 71 and is formed to contact the third rotating portion 54 described above.

On the other hand, in the second embodiment, when the second elastic member 60 is coupled to the case 10 with the pair of locking members 40, the second elastic member 60 rotates in the unlocking direction between the pair of locking members 40. It is installed to support elastically.

Although the rotation angle of the rotation member 50 rotated by the lever A by interposing the interlocking member 70 as in the second embodiment is the same as that of the first embodiment, a pair of the first embodiment is compared with that of the first embodiment. By further increasing the rotation angle of the locking member 40, it is possible to easily secure the rotation angle that can be separated from the latch of the pair of locking members 40.

An operating state of the automatic locking device for a sliding door according to the second embodiment of the present invention described above will be described. 17 to 19 is an operation of the automatic locking device for a sliding door according to a second embodiment of the present invention.

First, FIG. 17 shows a locked state in which a pair of locking members 40 are locked to the latch B. As shown in FIG. In this state, when the rotating member 50 is rotated by the lever A, as shown in Fig. 18, the second rotating portion 53 rotates the second locking member 40B in the unlocking direction so that the latch B is closed. It is unlocked from.

At the same time, the third pivoting part 54 presses the first linking part 72 of the interlocking member 70 to rotate the interlocking member 70, and at the same time, the third pivoting part 54 contacts the first locking member 40A. The second linking portion 73 is unlocked by rotating the first locking member 40A in the unlocking direction to release the first locking member 40A from the latch B. FIG.

Subsequently, as shown in FIG. 19, the sliding member 20 supported inside the case 10 by the pair of locking members 40 is elastically restored by the first elastic member 30 so that the case 10 Protrude outward.

As a result, the sliding member 20 protruding outward is pressed against the latch B installed in the door frame (not shown), so that the case 10 installed in the door (not shown) moves away from the door frame. do.

Next, the state of changing from the unlocked state to the locked state is that, as in the first embodiment, the door is brought into contact with the door frame so that the sliding member 20 moves to the inside of the case 10 and a pair of locking members. 40 is elastically restored by the second elastic member 60 and rotated in the locking direction to be locked by the catch B.

The scope of the present invention is not limited to the above-described embodiment, but may be embodied in various forms of embodiments within the scope of the appended claims. Without departing from the gist of the invention claimed in the claims, it is intended that any person skilled in the art to which the present invention pertains falls within the scope of the claims described in the present invention to various extents which can be modified.

1 is an exploded perspective view showing a conventional locking device,

Figure 2 is a longitudinal cross-sectional view of the coupled state of FIG.

3 is an exploded perspective view of an automatic locking device for a sliding door according to a first embodiment of the present invention;

4 is a perspective view of the case of FIG.

5 is a perspective view of the sliding member of FIG.

6 is a rear perspective view of the sliding member and the elastic member of FIG.

7 is a coupling of the case and the sliding member,

8 is a perspective view of the locking member of FIG.

9 is a schematic view of a locking member installed in a case;

10 is a perspective view of the rotating member of FIG.

11 is a schematic view of a rotating member installed in a case;

12 is a schematic view of a second elastic member installed in the case of FIG. 3;

13 to 15 is an operation of the automatic locking device for a sliding door according to the first embodiment of the present invention,

16 is a schematic view of an automatic locking device for a sliding door according to a second embodiment of the present invention;

17 and 19 are operations of the automatic locking device for a sliding door according to a second embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

A: lever B: latch 10: case

20: sliding member 30: first elastic member 40: a pair of locking members

50: rotating member 60: second elastic member 70: interlocking member

Claims (12)

In the locking device is installed on the door to be automatically caught by the latch installed on the door frame, in the unlocking device by the rotation of the lever, A case 10 installed at one side of the door; A rotating member 50 installed in the case 10 and rotated by the lever A; A pair of locking members 40 installed in the case 10 to rotate in the unlocking direction by the rotation of the rotation member 50; It is provided to slide in the inner and outer direction of the case 10, and includes a sliding member 20 is installed to be supported by the pair of locking member 40, The sliding member 20 protrudes outwardly of the case 10 by rotating in the unlocking direction of the pair of locking members 40 to move the door away from the latch B. Automatic locking device for sliding door. The method of claim 1, The rotating member 50, A rotating body 51 which is installed to be coupled to rotate in the thickness direction of the case 10 of the case 10; The first rotating part 52 and the second rotating part 53 which are coupled to both sides of the rotating body 51 and formed to press and rotate the pair of locking members 40 in the unlocking direction, respectively, when rotating. Automatic locking device for a sliding door comprising a. 3. The method of claim 2, The pair of locking members 40, One side is formed with a locking portion 41 to be caught by the latch (B), The other side is formed to be in contact with the sliding member 20, the automatic locking device for a sliding door, characterized in that the support portion 42 is formed to support the sliding member 20 in the inward direction of the case 10 in a locked state. . The method of claim 3, One side of the support member of the pair of locking members 40 is formed with a first receiving portion 44 for receiving the first pivoting portion 52 to form a first pivoting portion of the pivoting member 50 ( 52) is pressed during the rotation, One side of the support of the other of the pair of locking members 40 is formed with a second accommodating portion 45 for receiving the second pivoting portion 53 to form a second pivoting portion of the pivoting member 50 ( 53) Automatic locking device for a sliding door, characterized in that the pressurized during the rotation. The method of claim 1, The sliding member 20, A protrusion 20A protruding outwardly of the case 10 when the pair of locking members 40 rotate in the unlocking direction; One of the protrusions (20A) coupled to the inner direction of the case 10, the automatic locking device for a sliding door, characterized in that it comprises a body portion (20B) formed in contact with the pair of locking members (40). The method of claim 5, The body portion 20B, A seating part 22 seated on the pivot member 50 when the sliding member 20 moves inwardly of the case 10; It is coupled to both sides of the seating portion 22, one side is formed to be in contact with the inside of the case 10, the other side is formed with the first side portion 24 and the first to be in contact with the pair of locking member 40 Automatic locking device for a sliding door comprising a two side portion (25). The method of claim 1, It is installed to be coupled to rotate in the thickness direction of the case 10, is installed to abut one of the one side of the locking member 40 and one side of the rotating member 50 is the rotating member ( Automatic locking device for a sliding door, characterized in that it further comprises an interlocking member (70) for pressurizing the pair of locking members (40) in conjunction with the rotation of the 50. The method of claim 7, wherein The interlocking member 70, An interlocking shaft 71 installed between any one of the pair of locking members 40 and the rotation member 50; A first interlocking portion 72 coupled to one side of the interlocking shaft 71 and installed to be in contact with one side of the rotation member 50; It is coupled to the other side of the interlocking shaft 71, the automatic locking device for a sliding door, characterized in that it comprises a second interlocking portion (73) which is installed to abut any one of the pair of locking member (40). The method of claim 8, The rotating member 50 is coupled to the rotational direction of the case 10, the rotating body 51 is installed to rotate, and A second rotating part 53 coupled to one side of the rotating body 51 and configured to press and rotate any one of the pair of locking members 40 when the rotating body 51 rotates; It is coupled to the other side of the rotating body 51, and includes a third rotating portion 54 for pressing and rotating the first interlocking portion 72 of the linking member 70 when the rotating body 51 rotates. Automatic locking device for a sliding door, characterized in that. The method of claim 9, Any one of the pair of locking members (40), the automatic locking device for a sliding door, characterized in that the third receiving portion (46) for receiving the second interlocking portion (73) of the interlocking member (70) is formed. The method of claim 1, The first elastic member 30 is provided in the case 10, the sliding member 20 is installed to elastically support the sliding member 20 when the sliding member 20 moves inwardly of the case 10. Automatic locking device for a sliding door, characterized in that. The method of claim 1, The second elastic member 60, which is installed in the case 10, is installed to elastically support the pair of locking members 40 when the pair of locking members 40 rotate in the unlocking direction. Automatic locking device for a sliding door, characterized in that it further comprises.

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