KR101453945B1 - Mult-type Llatch bolt - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latch bolt used as a constitution of a door lock (device), and more particularly to a multi-type latch bolt in which an operating form of a knob for opening a door can be easily used in a pull- .
The multi-type latch bolt according to the present invention is a latch bolt of a door lock, which is inserted into an installation groove formed in a door, has a slide inner hole formed on the inside thereof, a side plate for fixation provided on one side so as to be fixed to the door, A housing having an insertion hole for an operation member for inserting an operation member formed therein and a guide hole for a locking pin for guiding the locking pin; A penetrating portion for an operation member provided on the slide inner hole and slidably inserted into a portion of the operation member passing through the insertion opening for the operation member and having an operation contact portion for sliding and contacting one side during operation; A slide body having a through-hole for a lock pin formed therein; A return elastic member for a slide body accommodated in the slide inner hole and elastically supporting a rear end of the slide body; A latch bolt provided at a front end of the slide body; And a locking pin which is located in the penetrating portion for the locking pin and moves in a direction orthogonal to the sliding direction of the slide body and has a latching portion for contacting the latching locking projection portion to control the movement of the sliding body.

Description

Multi-type Latch bolt

The present invention relates to a latch bolt which is used as a construction of a door lock (device) and which is opened when a door is closed by protruding by the action of a spring and the door is locked and a handle or the like is turned.

And more particularly, to a multi-type latch bolt in which an operating mode of a knob for opening a door can be easily used in a pull-type and button-type door lock.

A door lock (device) provided in a general door (door) includes a door handle (lever) of a bar type or a round shape and a latch bolt that advances or retracts by rotation of the door handle (lever). At this time, advancement of the latch bolt refers to movement of the latch bolt protruding outwardly from the door side, and backward movement of the latch bolt refers to movement of the latch bolt into the door interior.

The front end of the latch bolt is formed with an inclined part. Even when the door is closed without operating the lever in the advanced state, the inclined surface comes into contact with the threshold or the wall surface to naturally retreat, so that the natural door (door) can be closed.

Meanwhile, when the door (device) is provided with the latch bolt and the door handle as described above, the latch bolt insertion groove into which the latch bolt can be inserted is formed on the door frame or the wall surface.

With this structure, when the door is closed, the latch bolt is inserted into the latch bolt insertion groove. Even if the door is closed without turning the door knob, as described above, the latch bolt is pushed by the door frame or the wall surface, When the door reaches the position where the bolt insertion groove formed on the door frame or the wall surface is present, the door is advanced to the outside again by the elasticity of the built-in spring or the like, so that the closed state of the door (door) can be maintained.

On the other hand, when the locking device is operated in the state that the door (door) is closed, the door can not be opened by turning the door handle from the outside. At this time, in order to release the lock, the lock state must be released by unlocking operation from inside or outside the door.

Prior art related to the latch bolts used in door locks installed in such doors include a latch bolt operating structure of a tubular type door lock, which is disclosed in Korean Patent Registration No. 10-0445145, and KR Patent Application No. 10-2006-046223 A lock device in which a latch bolt and a cylinder are separated from each other, and a dead bolt, which is a pull-type door lock and a dead bolt, which are disclosed in (KR) Patent Registration No. 10-1059753 and (KR) Patent Registration No. 10-1133918.

In addition to the above-mentioned patent documents, techniques relating to latch bolts used in various door locks have been provided and are being implemented.

Generally, the conventional latch bolt is a rotary type door lock (a lock type door lock type) in which a door handle (lever) is rotated and operated except for a pull door type door lock which is the Korean Patent Registration No. 10-1059753 provided by the present inventor Device).

However, in recent years, a pull-type door lock which can open a door by pulling a door handle (lever) by various factors such as a taste of a consumer, a place of installation, etc., and a button Door locks and the like.

Due to such a phenomenon, a latch bolt which can be commonly used for a door lock such as a pull-up type or a button type is required. However, since a pull type and a button type door lock (device) are not widely used at present, There is no provision of a latch bolt which can be commonly used for a lock (device).

Moreover, the conventional latch bolts of the door lock (device) of the rotation type are disadvantageous in that they are complicated in structure and structure and thus are difficult to repair.

(KR) Patent Registration No. 10-0445145 (KR) Patent Publication No. 10-2006-046223 (KR) Patent Registration No. 10-1059753 (KR) Patent Registration No. 10-1133918

As described above, the present invention provides a multi-type latch bolt which can be commonly applied to a pull-type door and a button-type door lock (apparatus) provided by various factors such as personal taste, ≪ / RTI >

Further, the present invention provides a multi-type latch bolt that can be commonly used for a pulling type and a button-type door lock (device), and simplifies the structure and configuration to improve durability and facilitate maintenance, thereby improving economy and productivity.

In order to achieve the above object, a multi-type latch bolt according to the present invention is a latch bolt for a door lock, which is inserted in an installation groove formed in a door, has a slide inner hole formed therein and has a fixing side plate A housing having a guide hole for a locking pin for guiding the locking pin and an insertion hole for an operation member for inserting the operating member formed on both sides so as to face each other; A penetrating portion for an operation member provided on the slide inner hole and slidably inserted into a portion of the operation member passing through the insertion opening for the operation member and having an operation contact portion for sliding and contacting one side during operation; A slide body having a through-hole for a lock pin formed therein; A return elastic member for a slide body accommodated in the slide inner hole and elastically supporting a rear end of the slide body; A latch bolt provided at a front end of the slide body; And a locking pin which is located in the penetrating portion for the locking pin and moves in a direction orthogonal to the sliding direction of the slide body and has a latching portion for contacting the latching locking projection portion to control the movement of the sliding body.

The latch bolt sphere is provided with a shaft bolt formed with a latching part on the rear side, an elastic member surrounding the outer circumference of the shaft rod, and a fixing plate having a cutout groove into which the shaft rod is inserted. As shown in Fig.

A positioning groove for positioning is formed at the rear end of the housing.

Wherein the lock pin includes: a lock pin handle having a handle portion protruding outwardly, a guide portion passing through a guide hole for the lock pin, and a connection portion; a guide base formed with a guide portion and a connection portion penetrating the guide hole for the lock pin; And a locking hole in which the coupling portion is inserted into both sides of the locking protrusion.

The multi-type latch bolt according to the present invention as described above can be applied commonly to a pulling type and a button-type door lock (device), thereby ensuring productivity and economy.

In addition, various types of door locks can be provided by a multi-type latch bolt that can be commonly applied to a pull-type door and a button-type door lock (device).

Further, the multi-type latch bolt of the present invention has advantages of simple durability and easy maintenance because of its simple structure and structure.

Further, the direction of the lock pin can be easily changed, so that the lock state can be released from the outside or the inside of the door (door).

Further, the direction of the bolt protruding from the side surface of the door (door) can be easily changed, thereby restricting the restriction on the rotation and installation direction of the door.

1 is an exploded perspective view of a multi-type latch bolt showing one preferred embodiment of the present invention.
2 is an assembled sectional view of a multi-type latch bolt showing one preferred embodiment of the present invention.
3 is an exploded sectional view of a multi-type latch bolt showing a preferred embodiment of the present invention.
FIG. 4 is an exploded perspective view of a lock pin of a multi-type latch bolt according to a preferred embodiment of the present invention. FIG.
FIG. 5 is a perspective view of a multi-type latch bolt according to the present invention installed in a pull door lock. FIG.
6 is a plan view of a multi-type latch bolt according to the present invention in a state where it is installed in a pull door lock.
FIG. 7 is a detailed sectional view of a portion of the multi-type latch bolt according to the present invention installed in a pulling-type door lock. FIG.
8 is a perspective view of a multi-type latch bolt according to the present invention installed in a button-type door lock.
9 is a plan view of a multi-type latch bolt according to the present invention installed in a button-type door lock.
FIG. 9 is a detailed sectional view of a portion of the multi-type latch bolt according to the present invention installed in a button-type door lock to show an operating state thereof.

It is to be understood that the terms and words used in the present specification and claims should not be construed as limited to a conventional or dictionary sense and that the configurations shown in the embodiments and drawings described herein are only the most preferred embodiments of the present invention It is to be understood that the invention is not limited to the specific embodiments disclosed herein, and that various equivalents and modifications may be made thereto without departing from the scope of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latch bolt used in a door lock (apparatus) which is installed in a door (door) to open and close a door and maintain the lock state of the door.

And more particularly to a multi-type latch bolt in which the operating state of a door handle for operating a latch bolt can be applied to a door lock of a pull-type type and a door lock of a button type tine.

1 to 4 show an embodiment of a multi-type latch bolt 1 according to the present invention, which will be described in detail with reference to FIG.

1, the multi-type latch bolt 1 of the present invention comprises a housing 10 which is inserted and fixed in a mounting groove formed in a door (door), a slide 10 which is accommodated in the inside of the housing 10 and slides A body 20 and a return elastic member 30 for the slide body 20 housed inside the housing 10 to elastically support the slide body 20 so that the slide body 20 returns to the original position, A latch bolt hole 40 provided at the front end 20a of the slide body 20 and a lock pin 50 for controlling the slide (movement) of the slide body 20.

Referring to Figures 1 to 3,

The housing 10 is fixed to a door and accommodates the slide body 20 and the return elastic member 30 for the slide body and guides the slide body 20 to slide. (11) formed to slide the slide body (20) accommodated therein, a fixing side plate (12) fixed to the side surface of the door by a fixing member such as a screw, A guide hole 14 for a locking pin for guiding the locking pin and an insertion port 13 for an operation member for inserting the operating member and a positioning hole 14 formed at the rear side of the fixing side plate 12 (Not shown).

The slide body 20 is accommodated in the slide inner hole 11 of the housing 10 and is conveyed along the slide inner hole 11 by the door handle so that the slide body 20 is returned to the return elastic member 30 for the slide body And is configured so as to be able to slide (move) along the slide inner hole 11 of the housing 10 in a configuration in which the slide pin is returned to the home position and the slide (movement) is restricted by the lock pin 50, Sectional shape similar to that of the inner hole 11, but may have a different cross-sectional shape.

The slide body 20 is provided with an operation member having an operation contact portion 21a such that a part of the operation member penetrating through the insertion opening 13 for the operation member of the housing 10 is inserted and slid on one side during operation, A penetrating portion 21 and a penetration portion 22 for a locking pin having a lock projection portion 23 for penetrating the lock pin 50 and an engagement lock projection portion 23 formed on the inner side thereof are provided and a latch bolt hole 40 is provided at the front end 20a A cutting groove 24 is formed.

The penetration portion 21 for the operation member and the penetration portion 22 for the lock pin may be communicated with each other, and a diaphragm may be formed between FIGS. 1 to 3 and FIGS. The diaphragm may improve the rigidity and serve as a guide for the lock pin 50.

The operating contact portion 21a formed in the operating member penetrating portion 21 is partially inserted as shown in FIG. 7 and is rotated about the hinge shaft 4 'by the pulling-type door handle 2 in the form of a lever So as to contact one end 4a of the operating member 4 so that the latch bolt hole 40 can be moved backward when the operating member 4 rotates.

10, the operating contact portion 21b formed in the operating member penetrating portion 21 is formed at one side of the cam 5a (see FIG. 10) of the operating member 5 advanced by the push button 3a provided in the button- So that the latch bolt 40 can be moved backward when the operating member 5 is advanced.

7, the operating contact portion 21a formed in the penetrating portion 21 for the operating member may be in the form of a plate, or may be formed as an operating contact portion 21b formed in the penetrating portion 21 for the operating member, May be in the form of a roller.

The return elastic member 30 for the slide body is accommodated in the slide inner hole 11 of the housing 10 and elastically supports the rear end of the slide body 20 so that the slide body 20 is elastically supported by the operation members 4, The coil spring can be returned to the home position when the backward movement is performed. Usually, a generally used coil spring is used.

The latch bolt hole 40 is provided in the front end 20a of the slide body 20 so as to be movable in the same direction as the slide (moving) direction (X-axis direction) of the slide body 20 separately from the slide body 20 This allows the latch bolt 40 to move only when the slide body 20 is locked when the door is opened and closed.

The latch bolt hole 40 is inserted into the cutout groove 24 and has a shaft rod 41 having a locking part at the rear and an elastic member 42 composed of a coil spring surrounding the outer circumference of the shaft rod 41, There is provided a fixing plate 44 having a cutout groove 44 for fixing the shaft rod 41 inserted in the cutout groove 24 so as to be movable in the X axis direction.

It is preferable that the cutout grooves 24 formed in the slide body 20 and the cutout grooves 44 formed in the latch bolt holes 40 are formed in directions perpendicular to each other.

2, the latch bolt 40 is provided in front of the slide body 20 and partially protruded from the outer side (fixing side plate 12) of the housing 10, Only the latch bolt 40 moves in the X-axis direction (backward) and enters the inside of the housing 10 in a state where the slide body 20 is fixed by an external force when the door (door) is closed.

The lock pin 50 is provided so that one end of the lock pin 50 protrudes outward from the door lock so that the user can operate the lock pin 50. The latch bolt 40 can be moved in the sliding direction (See FIGS. 5 to 10), by controlling the slide (movement) of the latch bolt hole 40, the latch bolt hole 40 can be prevented from sliding (moving) even when the door handle is operated, In order to maintain the same.

The lock pin 50 includes a lock pin knob 51 having one end projecting outwardly and outwardly so as to be operable from the outside, a lock pin knob 51 formed on the opposite side of the lock pin knob 51, The lock pin 51 and the guide base 52 are formed in the through hole 22 for the lock pin and the locking protrusion 23 And a stopper 53 for controlling the sliding movement of the slide body 20 in contact with the slide body 20.

4, the lock pin handle 51 includes a handle 51a having one end projecting outwardly from the door lock, a guide portion 51b passing through the guide hole 14 for the lock pin, and a connection portion 51C And the guide base 52 comprises a guide portion 52a and a connecting portion 52b which penetrate through the guide hole 14 for the lock pin and the stopper 53 is engaged with the locking protrusion 23 And a fixing hole 53b into which the connecting portions 51c and 52b are inserted at both sides of the jaw 53a.

The fixing holes 53b formed on both sides of the locking holes 53 are provided with screw grooves or fixing protrusions so as to correspond to the coupling portions 51C and 52b of the locking pin knob 51 and the guide base 52 .

5 to 7 show a state in which the multi-type latch bolt 1 of the present invention is installed and used in a pull door D provided with a pull door handle 2.

When the pulling-type door handle 2 is pulled as shown in Fig. 7, the rotary operation member 4 rotates about the hinge axis 4 ', and one end 4a is rotated by the rotation of the operation member 4 The sliding body 20 and the latch bolt hole 40 are moved back by coming into contact with the operating contact portion 21a of the penetrating portion 21 for the operating member formed on the slide body 20. [

The door handle 2 is returned to the original position by the return spring and the slide body 20 is returned to the original position by the returning elastic member 30 for the slide body, The sphere 40 is projected outward.

7, the movement of the slide body 20 is limited depending on the position of the latch 53 of the lock pin 50. [

8 to 10 show a state in which the multi-type latch bolt 1 of the present invention is installed and used in a button-type door lock D 'provided with a button-type door knob 3 provided with a push button 3' .

When the push button 3 'of the button-type door knob 3 is pressed as shown in Fig. 10, the operating member 5 moving in the Y-axis direction orthogonal to the X-axis moves, The slide body 20 and the latch bolt hole 40 are moved backward when the one cam end 5a comes into contact with the operating contact portion 21b of the through member 21 formed in the slide body 20. [

The operation member 5 is returned to its original position by the return spring and the slide body 20 is also returned to the original position by the return elastic member 30 for the slide body, The bolt hole 40 is projected outward.

As described above, the multi-type latch bolt 1 of the present invention can be used both as a pull door type door lock (D) and a button type door lock door (D ') and has advantages of simple structure and assembly, And various advantages such as cost reduction due to maintenance can be achieved.

D, D ': Door lock
1: Multi type latch bolt
10: Housing
20: slide body
30: Returning elastic member for slide body
40: Latch bolt hole
50: Lock pin

Claims (4)

In the latch bolt of the door lock,
A fixing side plate 12 inserted in the installation groove formed in the door and having a slide inner hole 11 formed inside thereof and fixed to the door, and an operation for inserting the operation member formed on both sides so as to face each other A housing 10 having a member insertion port 13 and a guide hole 14 for a locking pin for guiding the locking pin;
The operation member having an operation contact portion (21a, 21b) provided in the slide inner hole (11) and slidably inserted with a part of the operation member passing through the insertion opening (13) for the operation member so that one side of the operation member A slide body 20 provided with a penetrating portion 21 for a locking pin and a penetrating portion 22 for a locking pin formed with a locking protruding portion 23 on the inside thereof;
A return resilient member 30 accommodated in the slide inner hole 11 and elastically supporting a rear end of the slide body 20;
A latch bolt 40 provided at a front end 20a of the slide body 20;
A latching hole 53 is provided in the penetrating portion 22 for the locking pin and moves in a direction orthogonal to the sliding direction of the slide body 20 and is in contact with the latching locking protrusion 23, A locking pin (50) for controlling the locking pin (50);
And a plurality of latch bolts. The method according to claim 1,
The latch bolt 40 includes an axial rod 41 having a rear hooking portion, an elastic member 42 surrounding the outer circumference of the axial rod 41, and an incision groove 44 into which the axial rod 41 is inserted A fixed plate 44 is formed,
Wherein the latch bolt hole (40) is provided so as to be movable in a sliding direction of the slide body (20) by an external force separately from the slide body (20). 3. The method according to claim 1 or 2,
And a positioning groove (15) for positioning is formed at a rear end of the housing (10). 3. The method according to claim 1 or 2,
The lock pin 50 includes a lock pin handle 51 having a guide portion 51b and a connection portion 51C penetrating the handle 51a and the guide hole 14 for the lock pin and a guide hole 14 A guide base 52 formed with a guide portion 52a and a connecting portion 52b that penetrate the locking protruding portion 23 and a locking protrusion 53a that contacts the locking protruding portion 23 and the connecting portions 51C and 52b are inserted And a latching hole (53) having a fixing hole (53b) formed therein.

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