KR101808850B1 - Push-pull door lock device capable of rotating the latch head - Google Patents

Abstract

The present invention relates to a push-pull door lock device capable of rotating a latch head. According to the present invention, the device comprises: a first slider (21) installed to be able to slide in an axial direction of a guide shaft (20) to support one end part of a first elastic member (3); and a latch assembly (2) to move the first slider (21) in the axial direction. The latch assembly (2) includes: a fixated member (40) fixated to one end part of the first slider (21); a latch head (41) fixated to the fixation member (40) by a fixation pin (42) to be able to rotate; a pusher (6); and a second slider (5). The pusher (6) is inserted into the fixation member (40) to be able to slide while being in parallel to the axial direction of the guide shaft (20), one end of the pusher (6) is supported to the first slider (21) and the other end is supported to the latch head (41); thus the pusher (6) is slid to push and move the first slider (21) in an axial direction when the latch head (41) is rotated. The second slider (5) is installed in the first slider (21) in the direction crossing the axial direction of the guide shaft (20) to be able to slide so as to fixate and release the first slider (21) to and from the guide shaft (20). Accordingly, when the second slider (5) is pressed, the door is naturally opened as the latch head (41) rotates towards a front side from a rear side of the door with respect to the fixation pin (42).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a push-pull door lock device capable of rotating a latch head,

The present invention relates to a push-pull door locking mechanism, and more particularly, to a door lock mechanism capable of preventing a frictional impact of a striker and a latch head of a door frame The door can be opened smoothly, and the latch head can be rotated.

Generally, the door is provided with a rotary knob on both sides of the door, and a latch interlocking with each knob is protruded from the end of the door. Thus, when the user holds the handle by hand, the latch is pulled to the inside of the door, and in this state, the door is pushed or pulled open.

When the front face of the latch head comes into contact with the striker formed in the door frame, the door is closed and the vertical face of the rear side of the latch head which returns to the home position after the door is closed is stuck on the striker.

When the door is pushed in the push-pull door locking device or when the door is pulled, the latch head comes into contact with the striker. When a strong force is applied during the pull or push operation, the vertical surface of the striker and the latch head are strongly rubbed, And the door was not opened smoothly.

Korean Patent No. 10-088514 (2009. 03.05.) Korean Patent Publication No. 10-216-001612 (Feb. Japanese Patent No. 5619639 (Apr.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art push-pull type door opening / closing apparatus, in which the latch head is brought into contact with the striker when the door, Door lock device in which a frictional impact of a striker and a latch head of a door frame is prevented so that the opening operation of the door can be smoothly performed.

The objects and technical objects of the present invention are not limited to the technical problems described above. Accordingly, it is to be understood by those skilled in the art that the present invention is not limited to the above-described embodiments.

Technical features of the present invention include: a housing in which an upper case and a lower case are detachably coupled; A latch assembly slidably installed within the housing; And a first elastic member that is supported by an inner wall surface of the housing at one end and the other end of which is supported by the latch assembly so that the latch assembly can slide, The latch assembly includes: a guide shaft; A first slider installed to be slidable in the axial direction of the guide shaft and to which one end of the first elastic member is supported; And a latch head assembly for moving the first slider in an axial direction, the latch head assembly comprising: a holding member fixed to one end of the first slider; And a latch head assembly rotatably fixed to the fixing member by a fixing pin.

The other end of the second slider is supported by the latch head so that the latch head rotates relative to the first slider, A pusher for slidingly moving the first slider in the axial direction when the first slider is slid; And a second slider slidably mounted on the first slider in a direction intersecting the axial direction of the guide shaft to fix and fix the first slider to the guide shaft.

The second slider for fixing and releasing the first slider to the guide shaft is formed with a pair of guide pieces parallel to each other from both ends of the horizontal portion contacting the one side of the first slider, And a second elastic member which is supported by the first slider and whose other end is supported by the inner side surface of the pressing piece, and a second elastic member whose one end is supported by the first slider and the other end is supported by the inner side surface of the pressing piece .

In the push-pull door locking device of the present invention, when the slider is depressed, the operation of the push-pull exclusive latch of the present invention rotates the latch head from the rear side to the front side around the fixed axis without opening the latch head.

As a result, the latch can open the door naturally and comfortably because it does not generate a shock due to friction between the striker and the vertical surface of the latch head even when a strong force is applied by the push or pull action.

According to the present invention, when the door is pushed and the door is fully pulled, the latch head which contacts the striker is rotated to prevent friction between the striker and the latch head of the door frame, thereby preventing frictional impact of the striker and the latch head The opening operation of the door can be smoothly performed.

1 is a perspective view of the present invention in a decomposed state;
2 is a perspective view of a state in which the present invention is assembled;
3 is a longitudinal sectional view of the present invention.
4 is a cross-sectional view of the present invention.

The features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

Before describing the embodiments of the present invention, the application of the present invention is not limited to the details of the configurations and arrangements of the components described in the following embodiments or shown in the drawings. The present invention may be embodied and practiced in other embodiments, and may be carried out in various ways. Also, the expressions and predicates used in the embodiments with respect to terms such as device or element orientation, etc. are used merely to simplify the description of the present invention and do not indicate or imply that the associated device or element should have a specific orientation Do not. For example, terms such as " first ", "second" are used in the embodiments and claims to describe the invention, and such terms are not intended to indicate or imply their relative importance or purpose.

In addition, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventors shall, in order to best explain the inventive terms and concepts in the best mode, And shall be interpreted as being based on the meaning and concept of conformity.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. It should be understood that there may be many equivalents and variations.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention as disclosed in the accompanying claims. It is obvious that various modifications and changes are possible within the scope of the present invention.

Hereinafter, embodiments of the present invention will be described.

A rotatable push-pull door locking apparatus according to an embodiment of the present invention comprises a housing 1, a latch assembly 2, a first elastic member 3, and a latch head assembly 4.

Specifically, a housing 1 in which an upper case 10 and a lower case 11 are detachably coupled to each other; A latch assembly (2) slidably installed in the housing (1); One end of the first elastic member 3 is supported by the inner wall surface of the housing 1 and the other end of the first elastic member 3 is supported by the latch assembly 2 so that the latch assembly 2 can slide. And a latch head assembly 4 for moving the latch assembly 2 in the axial direction.

The housing 1 is composed of an upper case 10 and a lower case 11 in which a cylindrical body is divided into halves and through holes 101 and 111 are formed so that a second slider can be installed on the outer circumferential surface, The upper case 10 and the lower case 11 are coupled to each other with the coupling protrusions 102 and the coupling grooves 112 respectively formed at one end thereof and being detachably coupled by the band 12, One side is closed so that one end of the elastic member 3 can be supported, and the other side is opened to allow the latch head assembly 4 to protrude and retract.

The latch assembly 2 comprises a guide shaft 20, a first slider 21 and a latch head assembly 4.

A step 200 is formed at one end of the guide shaft 20 and a male screw 201 is formed at the other end of the guide shaft 20. The guide shaft 20 is installed through the center of the first slider 21, One end of the first elastic member 3 is supported and the male screw 201 is coupled to the latch head assembly 4. [

The first slider 21 is formed in a cylindrical shape and includes a shaft hole 210 into which the guide shaft 20 is inserted and a sliding space 211 is formed on an outer circumferential surface thereof so that a second slider 5, So that one end of the first elastic member 3 is supported while being slidably movable in the axial direction within the upper case 10 and the lower case 11. [

The latch head assembly 4 includes a fixing member 40, a latch head 41 and a fixing pin 42 to move the guide shaft 20 and the first slider 21 in the axial direction.

The fixing member 40 is formed in a cylindrical shape and has a female screw 400 to be fastened to the male screw 201 of the guide shaft 20 at the center of one side and a latch head 41 A fixed end portion 401 for fixing is formed.

The upper end and the lower end of the fixed end 401 are formed in a horizontal plane, and a pinhole 402 penetrating the upper and lower surfaces is perforated, and a locking protrusion for restricting the rotation of the latch head 41 (403) are formed.

The latch head 41 has an inclined surface 411 and a vertical surface 412 on one side and a protrusion 413 and 413a on the other side of the latch head 41, An insertion space 410 into which the fixed end 401 is inserted is formed and a locking protrusion 415 is formed to contact the locking protrusion 403.

The inner side surfaces of the protruding portions 413 and 413a facing each other are in planar contact with the upper and lower surfaces constituting the fixed end portion 401 of the fixing member 40, The second pinholes 414 and 414a are punched on the same vertical axis coinciding with the pinhole 402 of the first pinhole 401.

The fixing member 40 and the latch head 41 are inserted into the insertion space 410 and inserted into the first pinhole 414 and 414a and the first pinhole 402, As shown in Fig.

The latch head 41 is rotatably fixed to the fixing member 40 by the fixing pin 42 and the latching jaw 415 is fixed to the latching protrusion 403 of the fixing member 40, So that the rotation range is limited.

According to a characteristic feature of the present invention, the latch assembly 2 further comprises a second slider 5 and a pusher 6.

The second slider 5 is composed of a main body 50, a pressing piece 51, and a second elastic member 52.

The main body 50 is formed with a pair of guide pieces 501 and 501a parallel to each other from both ends of the horizontal part 500 contacting the one side surface of the sliding space 201 of the first slider 21, Is formed in an open form.

The pushing piece 51 is fixed to an end of the guide piece 501 or 501a forming a space opened in the main body 50. [

One end of the second elastic member 52 is supported by the first slider 21 so that the second slider 5 can reciprocate and the other end of the second elastic member 52 is supported by the inner surface of the pressing piece 51 .

Therefore, when the pushing piece 51 is pressed, the second elastic member 52 is compressed and the main body 50 is vertically moved. When the pressing force is released, the pushing piece 51 and the main body 50 Can be returned to the home position.

The second slider 5 is slidably installed on the first slider 21 in a direction crossing the axial direction of the guide shaft 20 so that when the elastic member 52 is pressed and returned, Thereby fixing and releasing the first slider 21 to the guide shaft 20.

3, the side surface of the horizontal portion 500 of the main body 50 is separated from the stepped portion (not shown) formed on the guide shaft 20 by the elasticity of the second elastic member 52, 200, and can not move in the axial direction, thereby fixing the first slider 21.

When the second elastic member 52 is compressed and the pressing piece 51 is pressed, the first slider 21 can be moved in the axial direction while the horizontal part 500 is moved away from the step 200 It will be.

The mechanical structure for pushing the second slider 5 is performed when the door handle is pressed or rotated by a conventional latch door and can be performed by a person having ordinary skill in the art , And a detailed description thereof will be omitted.

The pusher 6 is slidably inserted into the fixing member 40 while being parallel to the axial direction of the guide shaft 20 so that one end of the pusher 6 is supported by the first slider 21, The end portion is supported by the latch head 41 so that the latch head 41 slides when it rotates and allows the first slider 41 to slide in the axial direction.

In the push-pull door locking apparatus of the present invention configured as described above, when the pushing piece 51 of the second slider 5 is not pressed, the horizontal part 500 formed on the main body 50 of the second slider 5, The latch head 41 can not rotate because the pusher 6 and the first glider 21 can not move due to the step 200 of the guide shaft 20 and the latch member 40 The entire latch head assembly 4 including the latch head assembly 4 is moved in the axial direction.

When the pushing piece 51 of the second slider 5 is pushed and the horizontal part 500 of the main body 50 comes out of the step 200, the second slider 21 is moved to the guide shaft 20 The latch head 41 supported at one end of the pusher 6 is rotatable about the fixing pin 42 so as to be rotatable about the fixing pin 42. Therefore, It will be done.

The present invention is similar to the operation of a general latch door. When the second slider 5 is pressed, the latch head 41 does not move backward, and the latch head 41 rotates from the rear side to the front side of the door with the fixing pin 42 as the center.

Therefore, even if a strong force is applied by the push or pull operation, friction between the striker S and the vertical surface 412 of the latch head 41 does not occur, so that the door can be opened naturally and comfortably.

The present invention has been described with reference to preferred embodiments thereof.

The embodiments described in the present specification and the configurations shown in the drawings relate to the most preferred embodiment of the present invention and are not intended to represent all of the technical ideas of the present invention and thus various equivalents, Examples should be understood.

Therefore, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. There may be embodiments in which various modifications and changes are possible.

1: housing 2: latch assembly
3: first elastic member 4: latch head assembly
5: second slider 6: pusher
10: upper case 11: lower case
12: Band 20: Guide shaft
21: Slider 40: Fixing member
41: latch head 42:
50: main body 51:
52: second elastic member 101, 111: through hole
102: engaging projection 112: engaging projection
200: Step 201: Male thread
210: a shaft hole 211: a sliding space
400: female thread 401: fixed end
402: first pinhole 403:
410: insertion space 411: inclined surface
412: Vertical plane 413, 413a:
414, 414a: second pinhole 415:
500: horizontal part 501, 501a:
S: Striker

Claims (2)

A housing (1) detachably coupled to the upper case (10) and the lower case (11);
A latch assembly (2) slidably installed in the housing (1);
One end of the first elastic member 3 is supported by the inner wall surface of the housing 1 and the other end of the first elastic member 3 is supported by the latch assembly 2 so that the latch assembly 2 can slide. Wherein the door lock mechanism comprises:
The latch assembly (2)
A guide shaft (20);
A first slider (21) slidably mounted on the guide shaft (20) to support one end of the first elastic member (3);
And a latch head assembly (4) for moving the first slider (21) in an axial direction,
The latch head assembly (4)
A fixing member (40) fixed to one end of the first slider (21);
And a latch head (41) rotatably fixed to the fixing member (40) by a fixing pin (42)
Is inserted into the fixing member (40) so as to be slidable in parallel with the axial direction of the guide shaft (20), one end thereof is supported by the first slider (21), and the other end thereof is supported by the latch head And a pusher (6) supported by the latch head (41) and slidingly moving the latch head (41) while sliding the first slider (21) in the axial direction,
And a second slider (21) slidably mounted on the first slider (21) in a direction intersecting the axial direction of the guide shaft (20) for fixing and releasing the first slider (21) 5) of the latch head.
The method according to claim 1,
The second slider (5) for fixing and releasing the first slider (21) to the guide shaft (20)
A main body 50 formed with a pair of guide pieces 501 and 501a parallel to each other at both ends of a horizontal portion contacting one side of the first slider 21 and having one side opened;
A pressing piece 51 fixed to an open end of the main body 50;
And a second elastic member (52) supported at one end of the first slider (21) and the other end supported at the inner surface of the pressing piece (51) Door locking device.

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