KR20210119068A - The automatic opening apparatus of the sliding door - Google Patents

Abstract

The present invention relates to an automatic opening apparatus for a sliding door, which automatically moves a sliding door away from a door frame when a lock is released by pulling a handle of the sliding door installed on the door frame. To this end, the automatic opening apparatus for the sliding door of the present invention comprises: a housing (60); a movable body (70); a pusher (40); a torsion spring for pusher return (77); an operation (80); a pawl (90); a torsion spring for hook return (53); and a cover (100).

Description

The automatic opening apparatus of the sliding door}

The present invention relates to an automatic opening device for a sliding door that automatically moves a sliding door away from a door frame when the locking state is released by pulling the handle of the sliding door installed on the door frame. More specifically, the structure is simplified and small. It relates to an automatic opening device for a sliding door that can be opened by pushing a heavy sliding door from the door frame with more powerful force by amplifying the force.

In general, a locking device is provided for sliding doors that divide indoors and outdoors to prevent intrusion from the outside while the sliding doors are closed.

In such a locking device, the locking ring and the locking piece are respectively fixed to the overlapping part of the sliding door, and the locking ring is hung on the locking piece in the closed state of the sliding door to maintain the locked state of the sliding door.

At this time, mohair is fixed on the opposite side of the sliding door to maintain airtightness, so that when the sliding door is completely closed, the mohair is closely connected to the door frame to prevent cold air from flowing into the room in winter, In summer, cold indoor air is prevented from escaping to the outside.

Accordingly, even if the elderly or women with weak hands pull the handle to unlock the sliding door and push the sliding door to the open side, it is difficult to open the sliding door due to the frictional force of the mohair closely connected to the door frame. there was.

In order to solve the above problem, a device was developed and registered as Utility Model No. 455185 to allow the heavy sliding door to move away from the door frame and to let the mohair come out of the door frame when the sliding door is unlocked by pulling the handle. have.

1 is a front view of the conventional device installed, FIG. 2 is an exploded perspective view showing the main part of the conventional device, and FIG. 3 is a longitudinal sectional view showing the use of the conventional device. It is configured to operate in an interlocking manner with the handle (4) installed on the door frame (3) to operate (2).

A rack 6b for an opening device is formed in addition to the slide bar 6 on which a rack 6a coupled to a pinion 5 coupled to a handle 4 installed to drive the locking device 2 and a rack 6a coupled to the gear are formed. has been

An opening device (1) is installed in front of the rack (6b) for the opening device so that the door frame (3) is reliably separated from the door frame (7).

The opening device 1 includes a body 9 fixed with a piece 8 while being inserted into the rail groove 3a of the door frame 3 , and an arm pin on the body 9 . ) (10) rotatably assembled with an arm (11) having several pinion projections (11a) engaged with a rack (6b) for an opening device formed on the slide bar (6), and the arm (11) ) and a roller 12 assembled to the tip of the arm 11 in a state fixed with the piece 13 to the body 9 so as to elastically support the arm 11 to be located inside the body 9. It consists of a leaf spring 14 installed so as to be in contact with the vertical part 11b of This is formed so that the slide bar 6 moves regardless of the assembly of the piece 8 .

The combination of the rack 6b for the opening device and the pinion protrusion 11a formed on the arm 11 serves to enable the arm 11 to sufficiently rotate around the arm pin 10 even with a short stroke distance. will do

Two pinion projections 11a are formed on the two arms 11 facing each other, and the arms 11 are rotated by approximately 45°.

The leaf spring 14 is compressed while the arm 11 moves outward when the handle 4 is rotated. When the rotation force of the handle 4 is removed, the compressed leaf spring 14 expands and the arm pin (10) It serves to push the vertical portion (11b) formed in the arm (11) on the coupled side, the arm (11) to the inside of the body (9).

The arm 11 is supported by the support piece 9a formed inside the body 9 when the sliding door is moved inside the body 9 in a closed state so that stable operation is achieved without excessive insertion. have.

Therefore, when the handle 4 is rotated clockwise while the sliding door A is closed so that the arm 11 enters the inside of the body 9 as shown in the double-dotted line in FIG. 3 , the pinion coupled to the handle 4 is Since (5) rotates in the same direction, the slide bar (6) coupled to the pinion (5) and the rack (6a) moves upward. At this time, the slide bar (6) has a piece (8) for fixing the body (9) A long hole (6c) into which is inserted is formed, so that the slide bar (6) is moved regardless of the fixing of the piece (8).

Accordingly, the pinion protrusion 11a formed on the arm 11 by the rack 6b for the opening device formed on the lower part of the slide bar 6 rotates the arm 11 around the arm pin 10 as shown by the solid line. The roller 12 coupled to the tip of the arm 11 is rotated in the direction to push it while supported by the door frame 7 , so the door frame 3 is exposed from the body 9 in the door frame 7 . It is surely separated by the amount of rotation of the arm (11).

At this time, the leaf spring 14 is maintained in a compressed state by the rotating arm 11 .

In this way, when the external force is removed from the handle 4 in a state in which the sliding door A is partially opened, the arm 11 that separates the door frame 3 while rotating is the body 9 by the expansion force of the leaf spring 14. Since it is automatically inserted into the inside, a safety accident caused by the arm 11 being exposed to the outside of the body 9 as in the prior art is prevented.

(Prior art literature)

(Patent Document 0001) Republic of Korea Utility Model Publication No. 20-0455185 (Registered on August 16, 2011)

(Patent Document 0002) Korean Utility Model Publication 20-2008-0004018 (published on September 19, 2008)

However, in this conventional device, when the handle is pulled to open the heavy sliding door, the arm is rotated while the slide bar is raised by the pinion. Although it has the advantage of opening the sliding door of the heavy body, there are several problems as follows.

First, the rotational force of the handle is transmitted as a rotational movement to the arm that rotates around the arm pin through the slide bar that moves in a straight line, and the door frame moves away from the door frame. Elderly or housewives with weak strength are complaining of many difficulties in opening heavy sliding doors.

Second, it was divided into an opening device and a locking device, so it was inconvenient to install them in the interior of the door frame, as well as inconvenient A/S according to the replacement of parts.

Third, there is a limit in properly adjusting the modulus of elasticity of the leaf spring. If the modulus of elasticity is high, when the arm is returned, the arm hits the support piece badly and the support piece is broken.

Fourth, since the arm is of a type that is exposed to the outside of the body, if foreign substances such as dust get caught in the arm pin, which is the rotating part of the arm, due to long-term use, the arm cannot rotate smoothly due to the restoring force of the leaf spring. It cannot be returned to its initial position.

Fifth, as the roller rotates due to the rotation of the arm and pushes the door frame, scratches are generated on the door frame, thereby damaging the exterior.

The present invention has been devised to solve the problems of the prior art, and by improving its structure, the force applied according to the rotation of the handle is transmitted directly to the pusher at a short distance, so that the sliding door can be easily opened even with a small force. Its purpose is to make it possible.

Another object of the present invention is to accommodate the locking structure and the opening structure in the housing at the same time, so that it can be easily installed in the door frame, as well as provide convenience of A/S.

Another object of the present invention is to expose only the pusher and the hook to the outside of the housing to fundamentally solve the phenomenon that foreign substances such as dust are introduced into the interior of the housing even after long-term use.

According to the aspect of the present invention for achieving the above object, a circular coupling hole is formed in the upper part, a shaft is formed in the lower part, a through hole through which the pusher is exposed is formed in the upper side, and an opening in which a hook is exposed is formed in the lower part of the side. A housing to be embedded and fixed in the sliding door, a rotation shaft rotatably assembled in the coupling hole of the housing, and a shaft hole for fixing the shaft of the handle are formed at the same time, and a rack is formed on one side to achieve a 90° phase difference from the rack A movable body integrally formed with a lever on its upper surface, a pusher to which the end of the lever is slidably coupled to convert the rotational motion of the lever into a linear reciprocating motion so that the sliding door moves away from the door frame frame, and the rotating shaft is wrapped around the rotating shaft A torsion spring for pusher return that is installed so that the pusher is returned to its initial state when external force is removed from the handle, and a pinion installed so as to be able to ascend and descend inside the housing and to which the rack is coupled; and the lower part of the housing A hook that is rotatably installed on a shaft formed in the A pawl for maintaining the locking state of the sliding door, a torsion spring for hook return that is installed to be wrapped around the shaft and returns the hook to the initial state as the hook is released by the pawl, and a torsion spring for closing the housing There is provided an automatic opening device for a sliding door, characterized in that it is composed of a cover.

According to another aspect of the present invention, a first housing in which a circular coupling hole is formed in the upper portion and a through hole through which the pusher is exposed is formed in the upper side of the sliding door to be embedded and fixed to the sliding door, and the coupling hole of the first housing is rotatably rotatable At the same time as the assembly rotation shaft is formed, a shaft hole for fixing the shaft of the handle is formed, a first rack is formed on one surface, and a movable body integrally formed with a lever on an upper surface having a phase difference of 90° from the first rack; The end of the pusher is slidably coupled so that the rotational movement of the lever is switched to a linear reciprocating movement so that the sliding door moves away from the door frame frame, and the pusher is installed to be wrapped around the rotating shaft, and when external force is removed from the handle, the pusher returns to its initial state. A torsion spring for a pusher return that makes it possible, and a first pinion installed so as to be able to ascend and descend in the interior of the first housing and to which the first rack is coupled, and at the same time, second and third pinions are formed in the upper and lower portions; 2nd and 3rd housings installed to be embedded in the upper and lower portions of the sliding door, first and second shafts are formed, respectively, and first and second openings through which the first and second hooks are exposed, the second and third housings; First and second rotatably installed on the first and second shafts formed in the housing, first and second locking jaws and first and second protrusions are formed to maintain the locking state of the sliding door according to the first and second strikers First and second pawls that are elastically installed with first and second elastic members on the upper and lower portions between the hook and the operation to maintain the locking state of the sliding door according to the first and second locking jaws of the first and second hooks. ) and the first and second hook turns that are installed to be wrapped around the first and second shafts and return the first and second hooks to their initial state as the jamming state of the first and second hooks by the first and second poles is released. a torsion spring for the first and second poles, and a fourth rotatably installed on the third and fourth shafts formed in the second and third housings to be caught in the first and second accommodating spaces of the first and second poles, respectively, and coupled to the second and third pinions , 5 first and second movable pieces on which racks are formed, and first, second, and third covers for closing the first, second, and third housings. There is provided an automatic opening device for a sliding door, characterized in that.

The present invention has the following advantages over the prior art.

First, the distance through which the force according to the rotation of the handle is transmitted to the movable body is short, and the applied force is directly transmitted to the pusher and the locking state is released as shown in FIG. 7b. Since it is gently removed from the frame, even the elderly or housewives with weak hands can easily open the heavy sliding door.

Second, since a pusher and a hook are installed inside the housing, fixing to the door frame becomes convenient, and A/S according to the replacement of parts is easy.

Third, after opening the sliding door, the pusher is accommodated inside the housing by the restoring force of the torsion spring for pusher return, and at the same time, the pusher does not touch the door frame when the sliding door is closed.

Fourth, since the pusher accommodated in the housing is moved forward and backward by the link fitted in the link coupling hole according to the rotation of the movable body, the forward and backward movement of the pusher is made smoothly.

Fifth, since the pusher pushes the door frame to open the sliding door, it is possible to fundamentally solve the phenomenon of scratching the door frame.

1 is a front view of a state in which a conventional device is installed;
Figure 2 is an exploded perspective view showing the main part of the conventional device;
3 is a longitudinal cross-sectional view showing a state of use of a conventional device;
4 is an exploded perspective view showing an embodiment of the present invention;
5 is a side view in which the cover is removed in the assembled state of FIG. 4;
Figure 6 is a side view of the assembled state of Figure 4;
7A and 7B are perspective views of an operating state,
7A is a view of the sliding door closed;
Figure 7b is a state diagram of the sliding door away from the door frame frame due to the rotation of the handle;
8 is an exploded perspective view showing another embodiment of the present invention;
9 is a side view in which the cover is removed in the assembled state of FIG.
10A and 10B are perspective views of an operating state,
Figure 10a is a state view of the sliding door closed;
Figure 10b is a state diagram of the sliding door away from the door frame frame by the rotation of the handle;

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in several different forms and is not limited to the embodiments described herein. It is noted that the drawings are schematic and not drawn to scale. Relative dimensions and proportions of parts in the drawings are shown exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. In addition, the same reference numerals are used to indicate like features to the same structure, element, or part appearing in two or more drawings.

4 is an exploded perspective view showing an embodiment of the present invention, FIG. 5 is a side view with the cover removed in the assembled state of FIG. When the handle (not shown) of 20) is pulled, the pusher 40 that moves the sliding door 20 away from the door frame 30 and the hook 50 that maintains the locked state of the sliding door 20 is installed in one housing 60 to be applied to the sliding door 20 of a relatively small size.

In one embodiment of the present invention, a circular coupling hole 61 into which the rotating shaft 71 of the movable body 70 is fitted is formed on the upper portion of the housing 60, and the lower portion of the housing 60 is a shaft ( 62) is formed, a through hole 63 through which the pusher 40 is exposed is formed at the upper side of the side, and an opening 64 through which the hook 50 is exposed is formed at the lower side of the side.

Inside the housing 60, the first and second guide pieces 65a and 65b for guiding the rising and falling of the operating rod 80, which will be described later, and a first stopper 66a for limiting the return of the hook 50. , A second stopper (66b) for limiting the rise of the pawl (90), a third guide piece (65c) for guiding the rising and falling of the pawl (90), the cover (100) to the housing (60) bolt A plurality of bosses 67 each having a fastening hole 67a formed therein to be fastened with a fastening member 121 such as, etc., is fixed to the sliding door 20 with a fastening member (not shown) while adjusting the positions of the housing 60 A long hole 68 is formed.

A rotation shaft 71 rotatably assembled to the coupling hole 61 of the housing 60 is formed on the movable body 70 , and a handle shaft (not shown) is fixed to the rotation shaft 71 . A shaft hole 72 is formed, a rack 73 is formed on one surface of the rotation shaft 71, and a lever 74 is integrally formed on an upper surface having a phase difference of 90° from the rack.

The pusher 40 is slidably coupled to the end of the lever 74 so that the rotational motion of the lever 74 is switched to a linear reciprocating motion by the pusher 40 so that the sliding door 20 is moved from the door frame 30. It is designed to be far away.

A link 75 is formed opposite to the tip of the lever 74 of the movable body 70, and a link coupling hole 43 into which the link 75 is fitted is formed in the pusher 40 as an inclined long hole. As the link 75 moves along the link coupling hole 43 by the rotation of the lever 42, the pusher 40 moves forward and backward.

At this time, the pusher 40 is divided into a synthetic resin body 41 and a cover 42 to be integrated by the fastening member 122, and the movable body 70 is formed of a metal material, but the lever ( By forming a connection tight part 76 at the tip of the 74 and embedding a metal plate 45 in the inclined surface 44 formed inside the pusher 40 so that the connection sealing part 76 is connected to the metal plate 45 , it can be expected to improve the assembling property of the pusher 40 as well as to improve the durability by the metal plate 45 even if the connection tight portion 76 of the lever 74 repeatedly pushes the pusher 40 .

A torsion spring 77 for pusher return is installed to be wrapped around the rotation shaft 71, one end is supported by the movable body 70 and the other end is hung on the step 69 formed in the housing 60, so that the sliding door 20 When the external force is removed from the handle after opening, the pusher 40 is returned to its initial state by the restoring force of the torsion spring 77 for pusher return.

In addition, the actuating rod 80 having the pinion 81 formed inside the housing 60 is guided by the first and second guide pieces 65a and 65b so that it can be stably raised and lowered, and the housing 60 . A hook 50 that maintains the locked state of the sliding door 20 as it is fitted into the striker 110 is rotatably installed on the shaft 62 formed at the lower part of the 60, the hook 50 The lower portion of the pole 90, the upper portion of the selectively hooked engaging projection 51 and the protrusion 52 are formed.

A pole 90 that maintains the locking state of the sliding door 20 as it is caught by the hook 51 of the hook 50 is installed at the lower portion of the operation rod 80 by an elastic member 91 such as a coil spring. It is elastically installed and the torsion spring 53 for hook return that returns the hook 50 to its initial state as the hook 50 is released by the pole 90 is installed to be wrapped around the shaft 62. and the housing 60 is closed with a cover 100 .

At this time, one end of the torsion spring 53 for hook return is supported by the hook 50, and the other end is supported by the first stopper 66a.

8 is an exploded perspective view showing another embodiment of the present invention, FIG. 9 is a side view with the cover removed in the assembled state of FIG. Only the pusher 40a that moves the sliding door 20a away from the door frame 30a when a handle (not shown) is pulled inside the first housing 60a installed at the midpoint of 20a) advances and retreats The first and second hooks 50a and 50b for releasing the locking state of the sliding door 20a according to the rise of the operating rod 80a are provided on the upper and lower portions of the sliding door 20a. 3 It is rotatably installed in the housings 60b and 60c so that it can be applied to the sliding door 20a of a relatively large size.

In another embodiment of the present invention, a circular coupling hole 61a into which the rotation shaft 71a of the movable body 70a is fitted is formed on the upper portion of the first housing 60a installed at the midpoint of the sliding door 20a. A through hole 63a through which the pusher 40a is exposed is formed in the upper side of the first housing 60a to be embedded in the sliding door 20a.

A rotation shaft 71a rotatably assembled to the coupling hole 61a of the first housing 60a is formed on the movable body 70a, and the shaft of a handle (not shown) is formed on the rotation shaft 71a. A shaft hole 72a to be fixed is formed, a first rack 73a is formed on one surface of the rotation shaft 71a, and a lever 74a is integrally formed on an upper surface having a phase difference of 90° from the first rack. have.

A pusher 40a is slidably coupled to the end of the lever 74a, so that the rotational motion of the lever 74a is switched to a linear reciprocating motion by the pusher 40a, and the sliding door 20a is moved from the door frame 30a. It is designed to be far away.

A link 75a is formed opposite to the tip of the lever 74a of the movable body 70a, and a link coupling hole 43a into which the link 75a is fitted is formed in the pusher 40a as an inclined long hole. As the link 75a moves along the link coupling hole 43a by rotation of the lever 74a, the pusher 40a moves forward and backward.

At this time, the pusher 40a is divided into a synthetic resin body 41a and a cover 42a to be integrated by a fastening member 122a, and the movable body 70a is formed of a metal material, but the lever ( A connection tight part 76a is formed at the tip of the 74a), and a metal plate 45a is embedded in the inclined surface 44a formed inside the pusher 40a so that the connection tight part 76a is connected to the metal plate 45a. , it can be expected to improve the assembling property of the pusher 40a, as well as improve the durability by the metal plate 45a even when the connection tight portion 76a of the lever 74a repeatedly pushes the pusher 40a.

A torsion spring 77a for pusher return is installed to be wrapped around the rotation shaft 71a, one end is supported by the movable body 70a, and the other end is hung on the step 69a formed in the first housing 60a, so that the sliding door ( When the external force is removed from the handle after opening 20a), the pusher 40a is returned to its initial state by the restoring force of the torsion spring 77a for pusher return.

The second and third housings 60b and 60c are installed to be embedded in the upper and lower portions of the sliding door 20a, and the first and second shafts 62a are located inside the second and third housings 60b and 60c. ) 62b are formed, respectively, and first and second openings 64a and 64b through which the first and second hooks 50a and 50b are exposed are formed on the side surfaces, and the first and second shafts 62a and ( 62b), the first and second hooks 50a and 50b that maintain the locked state of the sliding door 20a as they are caught by the first and second strikers 110a and 110b, respectively, are rotatably installed, so that some of them are rotatably installed. It is exposed to the outside through the first and second openings 64a and 64b, and the first and second hooks 50a and 50b have first and second locking protrusions 51a and 51b and first and second protrusions under the first and second hooks 50a and 50b. (52a) and (52b) are respectively formed.

A first pinion 81a to which a first rack 73a is coupled is formed in the first, second, and third housings 60a, 60b, and 60c, and at the same time, second and third pinions 81b are formed in the upper and lower portions. ) (81c) is formed, the operating rod (80a) is installed so as to be able to ascend and descend, and on the upper and lower portions of the operation rod (80a), the first and second locking projections of the first and second hooks (50a) and (50b) ( The first and second elastic members such as coil springs so that the first and second pawls 90a and 90b that maintain the locked state of the sliding door 20a as they are caught by the 51a) and 51b can ascend and descend. It is elastically installed by (91a) and (91b), and the first and second accommodating spaces (92a, 92b) formed in the first and second poles (90a, 90b) have second and third housings (60b, 60c). The first and second movable pieces 93a and 93b are respectively rotatably fitted to the third and fourth shafts 62c and 62d formed in the shaft.

In this case, fourth and fifth racks 73d and 73e coupled to the second and third pinions 81b and 81c are formed at the other ends of the first and second movable pieces 93a and 93b, respectively.

The first and second shafts 62a and 62b have the first and second hooks ( The first and second hook return torsion springs 53a and 53b for reducing 50a) and 50b to their initial state are installed to be wrapped, and the first, second, and third housings 60a, 60b, and 60c are The first, second, and third covers 100a, 100b and 100c are closed.

At this time, one end of the torsion springs 53a and 53b for the first and second hook return is fixed to the first and second hooks 50a and 50b, and the other end is attached to the second and third housings 60b and 60c. It is fixed.

The first, second, and third housings 60a, 60b, 60c and the actuating rod 80a are integrally assembled by the fixing member 120 .

The operation of an embodiment of the present invention will be described as follows.

First, in the closed state of the sliding door 20, the pusher 40 is accommodated in the housing 60 and the hook 50 is hung on the striker 110 as shown in FIG. 7A, so that the sliding door 20 is locked. At this time, the torsion spring 77 for pusher return is not pressed, so the restoring force is not applied, and the hook 50 is rotated by the striker 110, so the restoring force is applied to the torsion spring 53 for the hook return and And the hook 50 is in a state of being rotated by the striker 110, so that the pole 90 is raised by the restoring force of the elastic member 91 and is hung on the hook 51 of the hook 50.

In addition, the pusher 40 installed to be accommodated in the housing 60 through the through hole 63 of the housing 60 is installed to maintain a predetermined distance t from the door frame 30, so that the sliding door 20 ) to prevent the front end of the pusher 40 from colliding with the door frame 30 even when the sliding door 20 is completely closed due to the hook 50 being caught by the striker 110 .

In this state, in order to open the sliding door 20, when the user grips the handle (not shown) and pulls it counterclockwise in the drawing, which is the opening direction of the sliding door 20, the shaft of the handle is fixed. The movable body 70 also rotates in the same direction as the rotational direction of the handle, and accordingly, the rack 73 of the movable body 70 is inserted into the pinion 81 of the operating rod 80 so that the operating rod 80 is separated. As it descends, it rises by the restoring force of the elastic member 91 and lowers the pole 90 hung on the hook 51 of the hook 50 to release the hook 50, so the hook 50 turns counterclockwise. direction to get out of the striker 110 and release the locking state of the sliding door 20 .

At the same time, while the lever 74 integrally formed with the movable body 70 rotates, the link 75 formed on both sides of the tip moves along the inclined link coupling hole 43 of the pusher 40 while the connection slit portion 76 ) pushes the metal plate 45 installed on the inclined surface 44 of the pusher 40 .

At this time, in the present invention, since the distance (ℓ) transmitted to the movable body 70 according to the rotation of the handle is short and the applied force is directly transmitted to the pusher 40, the unlocked sliding door 20 is shown in Fig. 7b. Similarly, the mohair fixed to the sliding door 20 while falling from the door frame 30 smoothly escapes from the door frame 30, so even the elderly or housewives with weak hands can easily open the heavy sliding door 20. .

As described above, when the sliding door 20 is opened by pulling the handle counterclockwise and then the external force is removed from the handle, the movable body 70 rotates clockwise by the restoring force of the torsion spring 77 for pusher return. As the initial state is reduced, the link 75 positioned at the lower end of the link coupling hole 43 moves along the link coupling hole 43 so that the pusher 40 is accommodated in the housing 60 .

At the same time, the rack 73 of the movable body 70 is inserted into the pinion 81 of the operating rod 80 to pull the operating rod 80 upward, so that the elastic member 91 is pressed by the operating rod 80 The pole 90, which was descended while being compressed, rises by the restoring force of the elastic member 91 and maintains a state in which the upper surface of the pole 90 is connected to the protrusion 52 of the hook 50. At this time, the hook 50 is As shown in Figure 7b, since it maintains the state rotated counterclockwise by the restoring force of the torsion spring 53 for hook return, it maintains the state exposed to the outside of the housing 60 through the opening 64 and at the same time maintains the state exposed to the outside of the pole 90 The upper end of the hook 50 is connected to the protrusion 52, so that the elastic member 91 maintains the restoring force.

On the other hand, when the opened sliding door 20 is closed, the hook 50 exposed to the outside of the housing 60 through the opening 64 collides with the striker 110 while compressing the torsion spring 53 for hook return. Since it rotates in the direction and is caught by the striker 110 , the locked state of the sliding door 20 is maintained.

As the sliding door 20 is closed, the hook 50 collides with the striker 110 and rotates. Since the 90 rises by the restoring force of the elastic member 91 and maintains the hooked state of the hook 50, an intruder cannot arbitrarily open the sliding door 20 from the outside.

Hereinafter, the operation of another embodiment of the present invention will be described.

10A is a view showing the sliding door closed. When the sliding door 20a is closed, the pusher 40a is accommodated in the first housing 60a and the first and second hooks 50a and 50b as shown in FIG. 10A. ) is hung on the 1 and 2 strikers 110a and 110b fixed to the top and bottom of the door frame 30a, respectively, to maintain the locked state of the sliding door 20a, at this time the torsion spring for pusher return (77a) is The first and second hooks 50a and 50b are rotated by the first and second strikers 110a and 110b, respectively, so that the restoring force is not applied. Restoring force is applied to 53b, and the first and second hooks 50a and 50b are rotated by the first and second strikers 110a and 110b, so that the first and second elastic members 91a and 91b ), the first and second poles 90a and 90b are raised by the restoring force of the first and second hooks 50a and 50b, respectively, and are respectively hung on the first and second locking projections 51a and 51b.

In addition, the pusher 40a installed to be accommodated in the first housing 60a through the through hole 63a of the first housing 60a is installed to maintain a predetermined distance t from the door frame 30a. When the sliding door 20a is closed, the first and second hooks 50a and 50b are caught by the first and second strikers 110a and 110b, respectively, so that even if the sliding door 20a is completely closed, the second and second pushers 40a (40a) ( 40b) prevents the front end from collided with the door frame 30a.

In this state, when the user grips the handle (not shown) to open the sliding door 20a and pulls it counterclockwise in the drawing, which is the opening direction of the sliding door 20a, the shaft of the handle is fixed. The movable body 70a also rotates in the same direction as the rotational direction of the handle, and accordingly, the first rack 73a of the movable body 70a is inserted into the first pinion 81a of the operating rod 80a and the first , 2nd and 3rd racks 73b and 73c of the 2 hooks 50a and 50b are respectively inserted into the 2nd and 3rd pinions 81b and 81c of the operating rod 80a, so that the operating rod 80a is lowered. will do

At this time, first and second movable pieces 93a and 93b are installed on the second and third pinions 81b and 81c of the actuating rod 80a to be rotatable on the third and fourth shafts 62c and 62d. and the fourth and fifth racks 73d and 73e formed on the first and second movable pieces 93a and 93b are fitted between the second and third pinions 81b and 81c of the actuating rod 80a, One end of the first and second movable pieces 93a and 93b is fitted in the first and second accommodating spaces 92a and 92b of the first and second poles 90a and 90b, and the first and second movable pieces 93a ) (93b) compresses the first and second elastic members (91a, 91b) while simultaneously lowering the first and second poles (90a) and (90b) of the first and second hooks (50a) and (50b). 2 Since the locking state is released from the locking jaws 51a and 51b, the first and second hooks 50a and 50b are rotated counterclockwise by the restoring force of the first and second torsion springs 53a and 53b for hook return. to release the first and second strikers 110a and 110b at the same time to release the locking state of the sliding door 20a.

At the same time, while the lever 74a integrally formed with the movable body 70a is rotated, the link 75a formed on both sides of the tip moves along the inclined link coupling hole 43a, while the connection tight part 76a is the pusher 40a. ) to push the metal plate 45a installed on the inclined surface 44a.

At this time, in another embodiment of the present invention, as in one embodiment, the distance (ℓ) transmitted to the movable body (70a) according to the rotation of the handle is short and the applied force is directly transmitted to the pusher (40a), so that the locked state is released. As the sliding door 20a is pulled out from the door frame 30a as shown in Fig. 10b, the mohair fixed to the sliding door 20a smoothly escapes from the door frame 30a, so even the elderly or housewives with weak hands can use the heavy weight sliding door ( 20a) can be easily opened.

As described above, when the sliding door 20a is opened by pulling the handle counterclockwise as described above, and then the external force is removed from the handle, the movable body 70a rotates clockwise by the restoring force of the torsion spring 77a for pusher return. As the initial state is reduced, the link 75a positioned at the lower end of the link coupling hole 43a moves along the link coupling hole 43a, so that the pusher 40a is accommodated in the first housing 60a.

At the same time, since the first rack 73a of the movable body 70a is inserted into the first pinion 81a of the operating rod 80a, the operating rod 80a is pulled upward, so that the first and second movable pieces 93a The first and second poles 90a and 90b, which were lowered while pressing the first and second elastic members 91a and 91b by pressing the 93b, are moved by the restoring force of the first and second elastic members 91a and 91b. It rises and maintains a state connected to the first and second protrusions 52a and 52b of the first and second hooks 50a and 50b, in which case the first and second hooks 50a and 50b rotate clockwise. The first and second poles 90a and 90b while maintaining the state exposed to the outside of the second and third housings 60b and 60c through the first and second openings 64a and 64b The upper ends of the first and second hooks 50a and 50b are connected to the first and second protrusions 52a and 52b, so that the first and second elastic members 91a and 91b have a restoring force.

On the other hand, when the opened sliding door 20a is closed, the first and second hooks 50a that are exposed to the outside of the second and third housings 60b and 60c through the first and second openings 64a and 64b ( 50b) collides with the first and second strikers 110a and 110b and rotates clockwise while compressing the torsion springs 53a and 53b for the first and second hook return, the first and second strikers 110a and 110b. to maintain the locked state of the sliding door 20a.

As the sliding door 20a is closed, the first and second hooks 50a and 50b collide with the first and second strikers 110a and 110b and rotate to form the first and second hooks 50a and 50b. When the first and second protrusions 52a and 52b are positioned on the first and second locking projections 51a and 51b away from the upper surfaces of the first and second poles 90a and 90b, the first and second poles 90a and 90b ( 90b) rises by the restoring force of the first and second elastic members 91a and 91b to maintain the hooked state of the first and second hooks 50a and 50b, so that an intruder from the outside can arbitrarily open the sliding door 20a. it won't be able to open.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features. will be.

Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention described in the above detailed description is indicated by the following claims, meaning and All changes or modifications derived from the scope and its equivalents should be construed as being included in the scope of the present invention.

20, 20a: sliding door 30, 30a: door frame
40, 40a: pusher 41, 41a: body
42, 42a: cover 43, 43a: link joint hole
44, 44a: inclined surface 45, 45a: metal plate
50: hooks 50a, 50b: first and second hooks
51: locking jaws 51a, 51b: first and second locking jaws
52: protrusions 52a, 52b: first and second protrusions
53: torsion spring for hook return
53a, 53b: torsion spring for the first and second hook return
60: housing 60a, 60b, 60c: first, second, third housing
61, 61a: coupling hole 65a, 65b, 65c: first, second, third guide piece
66a, 66b: first and second stoppers 70, 70a: movable body
73: rack 74, 74a: lever
75, 75a: Link 76, 76a: Connection tight part
77, 77a: Torsion spring for pusher return 80, 80a: Between operation
81: pinion 90: pole
90a, 90b: first and second poles 92a, 92b: first and second accommodation spaces
93a, 93b: first and second movable piece 100: cover
110: striker 120: fixing member

Claims (6)

The circular coupling hole 61 is formed in the upper part, the shaft 62 is formed in the lower part, the through hole 63 through which the pusher 40 is exposed is formed in the side upper part, and the hook 50 is exposed in the side lower part. The housing 60 having an opening 64 formed therein to be embedded and fixed to the sliding door 20, and the rotation shaft 71 rotatably assembled to the coupling hole 61 of the housing 60 are formed, and at the same time the handle of the handle is formed. A shaft hole 72 to which the shaft is fixed is formed, a rack 73 is formed on one surface, and a movable body 70 integrally formed with a lever 74 on an upper surface having a phase difference of 90° from the rack, and the lever 74 a pusher 40 for moving the sliding door 20 away from the door frame 30 by switching the rotational motion of the lever 74 into a linear reciprocating motion, and the rotation shaft 71 A torsion spring 77 for a pusher return that is installed to be wrapped and returns the pusher 40 to its initial state when external force is removed from the handle, and a rack 73 installed inside the housing 60 so as to be able to ascend and descend. It is rotatably installed on the actuating rod 80 on which the pinion 81 to be coupled is formed, and the shaft 62 formed on the lower part of the housing 60. The hook 50 that maintains the locked state of the sliding door 20 according to the hook 110, and the elastic member 91 at the lower part of the operation rod 80, the hook 51 of the hook 50 is elastically installed. ), which is installed to be wrapped around the shaft 62 and a pawl 90 that maintains the locked state of the sliding door 20 according to the locking state of the hook 50 by the pawl 90 is released. An automatic opening device for a sliding door, characterized in that it consists of a hook return torsion spring (53) for returning the hook (50) to its initial state and a cover (100) for closing the housing (60).
The method according to claim 1,
A link 75 is formed at the tip of the lever 74 of the movable body 70, and a link coupling hole 43 into which the link 75 is inserted is formed in the pusher 40 as an inclined long hole. Automatic opening device for sliding doors, characterized in that the pusher (40) moves forward and backward according to the rotation of the sliding door.
The method according to claim 1,
The pusher 40 is made of a synthetic resin material, and the movable body 70 is made of a metal material, but a connection tight part 76 is formed at the tip of the lever 74, and an inclined surface formed inside the pusher 40 ( 44), an automatic opening device for sliding doors, characterized in that a metal plate (45) is built in so that the connection sealing part (76) is connected to the metal plate (45).
A first housing (60a) having a circular coupling hole (61a) formed at an upper portion and a through hole (63a) exposing a pusher (40a) is formed at an upper side thereof and fixedly embedded in the sliding door (20a); A rotation shaft 71a rotatably assembled to the coupling hole 61a of the housing 60a is formed, and a shaft hole 72a to which the shaft of the handle is fixed is formed, and a first rack 73a is formed on one surface, A movable body 70a integrally formed with a lever 74a on an upper surface having a phase difference of 90° from the first rack, and an end of the lever 74a are slidably coupled, so that the rotational motion of the lever 74a is a linear reciprocating motion. is switched to a pusher 40a that moves the sliding door 20a away from the door frame 30a, and is installed to be wrapped around the rotation shaft 71a and removes the external force from the handle. A torsion spring (77a) for pusher return that makes it possible, and a first pinion (81a) that is installed so as to be able to ascend and descend in the interior of the first housing (60a) and to which the first rack (73a) is coupled. It is installed to be embedded in the upper and lower portions of the sliding door 20a and the operating rod 80a in which second and third pinions 81b and 81c are formed in the lower portion, and the first and second shafts 62a and 62b are respectively provided. The second and third housings 60b and 60c formed on the side surfaces of which first and second openings 64a and 64b through which the first and second hooks 50a and 50b are exposed, and the second and third The housings 60b and 60c are rotatably installed on the first and second shafts 62a and 62b, respectively, and the first and second locking projections 51a and 51b and the first and second protrusions 52a and 52b ) is formed and the first and second hooks 50a and 50b for maintaining the locked state of the sliding door 20a as they are caught by the first and second strikers 110a and 110b, and the The sliding door is elastically installed with the first and second elastic members 91a and 91b on the upper and lower parts to be caught by the first and second locking projections 51a and 51b of the first and second hooks 50a and 50b. Articles that maintain the locked state of (20a) 1 and 2 pawls 90a and 90b, and the first and second shafts 62a and 62b are installed to surround the first and second hooks by the first and second pawls 90a and 90b. The first and second hook return torsion springs 53a and 53b for returning the first and second hooks 50a and 50b to their initial states as the jamming state of the 50a and 50b is released, and the first , on the third and fourth shafts 62c and 62d formed in the second and third housings 60b and 60c so as to be caught in the first and second accommodating spaces 92a and 92b of the 2 poles 90a and 90b. The first and second movable pieces 93a and 93b each having fourth and fifth racks 73d and 73e which are respectively rotatably installed and coupled to the second and third pinions 81b and 81c; , 2, 3 An automatic opening device for a sliding door, characterized in that it consists of first, second, and third covers (100a, 100b, 100c) for closing the housings (60a, 60b, 60c).
5. The method according to claim 4,
A link 75a is formed at the tip of the lever 74a of the movable body 70a, and a link coupling hole 43a into which the link 75a is fitted is formed in the pusher 40a as an inclined long hole. Automatic opening device for sliding doors, characterized in that the pusher (40a) moves forward and backward according to the rotation of the sliding door.
5. The method according to claim 4,
The pusher 40a is made of a synthetic resin material, and the movable body 70a is made of a metal material, but a connection tight part 76a is formed at the tip of the lever 74a, and an inclined surface formed inside the pusher 40a ( 44a) has a built-in metal plate (45a) so that the connection sealing part (76a) is connected to the metal plate (45a).

Images