KR20160016112A - Push-Pull Door Lock having Rotatable Latch Bolt - Google Patents

Abstract

Disclosed is a push-pull door lock having a rotatable latch bolt, allowing the resistance-free rotation of a latch bolt to the forced direction to unlock a locked door when a user pushes or pulls a handle to open the door, thereby allowing free access and preventing damage to the latch bolt or relevant components by lateral pressure caused when the user pushes the door. To achieve this, unlike a conventional structure of sliding or rotating of the latch bolt, the push-pull door lock fixates the latch bolt by a vertical latch bolt fixing shaft, has a latch bolt rotation interposition at one side. The push-pull door lock comprises a driving lever moving forward and backward by a lever handle rotating by the pushing or pulling operation of the inner or outer handle, and a lever stopper moving forward or backward on the rotation track of the latch bolt rotation interposition by the driving lever in order to rotate or stop the rotation of the latch bolt rotation interposition. Therefore, the push-pull door lock has high durability and allows a highly reliable operation.

Description

[0001] The present invention relates to a push-pull door lock having a rotatable latch bolt,

The present invention relates to a push-pull door lock having a rotatable latch bolt. More particularly, the present invention relates to a push-pull door lock having a rotatable latch bolt, which can be opened by opening a door It is about door locks.

As is known, in recent years, a push-door door motor system, which is capable of releasing the lock state of the latch bolt by converting the movement force of pushing or pulling the handle to the vertical movement force of the locking member without rotating the handle, is disclosed in Korean Patent Registration No. 1263446 (Hereinafter referred to as " cited invention 1 ").

1 is a perspective view of a portable information terminal according to a first embodiment of the present invention. Referring to FIG. 1, the portable terminal includes a housing 100 having a space 110 formed therein, a space 110 installed in the housing 100, A latch bolt 200 for switching the door to a latching or latching state interlocked with a rotating operation of the handle 10, a latch bolt 200 installed to the housing 100 so as to be rotatable on both front and rear sides, A rotary lever 300 having one end connected to the connection end 311 in a vertical direction and a connection end 311 connected to the connection end 311. The latch bolt 200 is retracted A locking member 400 for releasing the locking of the latch bolt 200 so that the latch bolt 200 is retracted when the coupling bolt 200 is lowered by the downward rotation of the connecting end 311, When the locking member 400 is lowered, And a trigger shaft 500 for locking the locking member 400 so that the locking member 400 is not moved upward due to the force of the force and releasing the locking member 400 so that the locking member 400 is lifted due to an external force.

2, when the connecting end 311 of one side is rotated downward by the rotation of the handle 10, the locking member 400 is moved downward, so that the latch bolt 200 It is immersible,

When the handle 10 is returned to the standby position, the connecting end 311 is rotated upward to cause the locking member 400 to move upward, so that the latching jaw 411 of the locking member 400 is caught in the latching jaw 211, The control unit 200 waits for operation in a lockable state that can not be moved.

Therefore, Reference 1 can reduce the locking area of the latch bolt by turning the pushing or pulling motion of the handle into the vertical movement of the locking member, so that the driving radius of the structures for locking or unlocking the door is narrowed, There is an advantage to be able to do.

On the other hand, according to the cited invention 1, since a number of parts such as the bracket 120, the elastic member 230, the locking member 400, and the trigger shaft 500 must be used, the structure is complicated, Particularly, when the user pushes the door in the direction of opening the door, the latch bolt 200 is subjected to side pressure, so that the operation becomes unstable and structural damage may be caused by side pressure.

In addition, the recent push-pull door lock is convenient because the door is opened simply by pushing the handle of the door lock in the event of an emergency such as a fire. Even in case of a child or an old man who does not have a door lock, , And an example thereof can be found in Korean Patent Registration No. 0888514 (the name of the invention: a push-pull type digital door lock device; hereinafter referred to as "cited invention 2").

3, a latch bolt stopper 13 for preventing retraction of the dead bolt 11, the latch bolt 12 and the latch bolt 12 is built in and a mortise 10 And pivotal levers 31 and 31 'for fixing the latch bolt stopper 13 to the outside of the door of the door D where the motice 10 is located.

The latch bolt used in this Reference 2 is shown in Fig.

In the second cited reference 2, the first latch member 12B is rotatable. When the door is opened, the first latch member 12B is retracted in a state rotated as described above, or in the opposite direction When the first latch member 12B is retracted in the rotated state, the first latch member 12B is retracted from its original position, that is, from the mothris 10 The latch bolt stopper 13 can not be completely returned to its original position until it returns to the protruded state, and is held in a rotated state.

 This is because the flow grooves G of the first latch member 12B are also rotated as the first latch member 12B is rotated. When the first latch member 12B is not returned, the latch bolt stopper 13 come into contact with the bottom surface of the built-in portion 12B2 of the latch member 12B and can not enter the flow grooves G, and thus can not completely rotate upward.

 However, when the latch bolt 12 is retracted without rotating, the flow groove G is not rotated, unlike the case where the latch bolt 12 is retracted in a rotated state, The latch bolt stopper 13 immediately enters the flow groove G and can be immediately returned to the original position.

 The operation as described above includes the steps of forming the flow grooves G in the built-in portion 12B2 and having the protrusions 12B1 and the built-in portions 12B2 having different thicknesses, 1 latch member 12B.

 The upper end portion of the latch bolt stopper 13 is located in the flow groove G formed in the internal portion 12B2 of the first latch member 12B and the upper end portion of the latch bolt stopper 13 is provided in the protruding portion 12B1 of the first latch member 12B The first latch member 12B can be retracted into the guide casing 12A by the force applied by the door frame to the inclined side surface of the latch bolt stopper 13 The door can be opened regardless of whether or not the door is turned.

 However, when the door is opened in the vertical side direction on the inclined side surface provided in the projection 12B1, the upper end of the latch bolt stopper 13 is fitted into the flow groove G of the built-in portion 12B2, 12B can not be pivoted, the door can not be opened unless the upper end of the latch bolt stopper 13 is rotated downward to move under the flow groove G. [

 That is, when the upper end of the latch bolt stopper 13 is rotated downward and positioned below the flow groove G by using the handle, the first latch member 12B is rotated to change the direction of the vertical side and the inclined side, The latch member 12B can retract into the guide casing 12A to open the door.

According to the second cited reference 2, there is an advantage that the door can be easily opened by pulling or pushing the knob immediately without having to hold the knob and rotate the knob. On the other hand, the cited invention 2 is characterized in that the protrusion 12B1 When the door is opened in the direction of the vertical side from the inclined side, the upper end of the latch bolt stopper 13 is fitted in the flow groove G of the built-in portion 12B2 and the first latch member 12B can not be rotated Since the upper end of the latch bolt stopper 13 is rotated downward and positioned below the flow groove G by using the handle, the door can not be opened due to the inconvenience that the door can not be opened and closed. If the user pushes the door, So that there is a high possibility that the internal structure is damaged.

1. Korean Patent Registration No. 1263446 (entitled "Motis Door Lock") 2. Korean Patent No. 0888514 (entitled "Push-pull type digital door lock device")

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and to solve the above problems, an object of the present invention is to provide a door lock device, A push-pull door lock having a rotatable latch bolt is provided that prevents any damage to the latch bolt and associated parts even if side pressure is generated.

In order to achieve the above object, according to the present invention, there is provided a door device comprising a housing installed in a door, a latch bolt slidable by an indoor side handle or an outdoor side handle, and a dead bolt protruding and retreating as the controller drives the drive motor, Wherein the dead bolt and the latch bolt are engaged or disengaged from the door frame of the door so as to be selectively locked or opened,

Unlike a general structure in which the latch bolt slides or rotates, a latch bolt is fixed by a vertical bolt fixed shaft, a latch bolt pivot is formed on one side of the latch bolt, and a lever handle which rotates by pulling or pushing the knob And a rotatable latch bolt which is rotated or stopped between the latch bolt pivoting by a lever stopper which moves forward and backward on a turning locus between the drive lever and the latch bolt pivotal movement by the drive lever .

As described above, the present invention completely solves the problem that the latch bolt is damaged due to lateral pressure due to the push-pull door lock operation, so that the structure is simplified and the durability is greatly improved. In addition, in the closed state, the lever stopper is retracted, The door can not be pivoted and the door closed state can be maintained with a strong structure, so that a reliable operation can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a conventional Motice door lock structure.
2 is a side view for explaining a conventional motis doorlock operation;
3 is a side view showing a structure of a conventional push-pull type digital door lock device.
4 is an explanatory view showing latch bolt operation of a conventional push-pull type digital door lock device.
5 is a locked side view of a push-pull door lock with a rotatable latch bolt according to the present invention.
6 is a locked state side view of a push-pull door lock having a rotator latch bolt observed with the lower latch guide removed in the present invention.
FIG. 7 is a perspective view of a locked state bottom view of a push-pull door lock having a rotator latch bolt observed with the lower latch guide removed in the present invention
FIG. 8 is a bottom perspective view of the open state of a push-pull door lock having a rotator latch bolt observed with the lower latch guide removed in the present invention. FIG.
Figure 9 is a perspective view of a push-pull door lock with an overall rotatable latch bolt including a housing in accordance with the present invention;
10 is a perspective view of a push-pull door lock having a rotatable latch bolt in a state in which a buried cover and upper and lower latch guides are assembled in the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

5 and 6 are side views of a specific embodiment of the push-pull door lock having the rotatable-type bolt 100 according to the present invention, and FIGS. 7 and 8 show a bottom perspective view of the push-pull door lock.

As can be seen from the above description, the present invention is characterized in that it comprises a housing 500 installed on a door, a latch bolt 100 slidable by an in-door handle or an outdoors handle, and a controller by a separate key or button The dead bolt and the latch bolt 100 may be engaged or disengaged from the door frame of the door so that the dead bolt and the latch bolt 100 can be selectively locked or opened. ,

The latch bolt 100 and the dead bolt are provided with a latch bolt protruding and retracting hole 503 and a dead bolt protruding and retracting hole 502 of a buried cover 501. When the housing 500 is installed behind the buried cover 501 The latch bolt 100 installed inside the housing 500 is fixed by the vertical bolt fixing shaft 101 and the latch bolt turning lid 102 is integrally formed,

A link 103 passing through the support wall 402 at the latch bolt fixing shaft 101 and a spring 301 provided between the latch bolt fixing shaft 101 and the support wall 402,

A driving lever 201 which is moved forward and backward by a lever handle which rotates by pulling or pushing a knob of the door lock and the inside of the door lock and a driving lever 201 which moves forward and backward on the rotation locus of the latch bolt turning- And a rotatable latch bolt which is rotated or stopped by the lever stopper (300) for rotating the latch bolt (102).

In the present invention, the bending portion 303 of the lever stopper 300 and the humidification portion 304 extending in one direction (rearward in the example illustrated in FIG. 5) are formed in the bending portion 303, The spring 304 is provided between the bent portion 303 and the partition wall 302 to provide a stable elastic support structure.

In the present invention, two drive jaws 202 of the lever handle 200 are formed, a fluid space 203 is provided therebetween, and an upper end of the drive lever 201 is inserted between the fluid spaces 203 .

5, when the lever stopper 300 is in the standby state, one end of the lever stopper 300 is disposed in contact with the rear end of the lever stopper 300, The lever stopper 300 moves to the left in the figure by the force of the spring 301 that generates the latch stopper 300 so that the left end of the lever stopper 300 enters the latch bolt 100 side.

In this state, the upper and lower latch guides 400 and 401 cover the upper and lower portions of the latch bolt pivot 102, so that the lower latch guide 401 is removed and the lever stopper 300 is pivoted As shown in Fig.

As can be seen from the above, according to the present invention, since the lever stopper 300 is in a state in which the lever stopper 300 has entered into the rotation locus of the latch bolt turning pawl 102 by the elastic force of the spring 301, So that the latch bolt 100 can not be rotated around the latch bolt fixing shaft 101 as well.

In this state, when the door is pulled or pushed by the shape of the latch bolt 100, the locking state of the door is maintained.

In this state, when a person inside or outside the room pulls or pulls the handle of the outside or inside of the door lock more than the set width to open the door, the driving jaw 202 of the lever handle 200 is moved, The lever handle 200 rotates the drive lever 201 so that the drive lever 201 overcomes the elasticity of the spring 301 and the lever stopper The left end of the lever stopper 300 is moved away from the rotation locus of the latch bolt pivot 102 and is retracted. The retracting of the lever stopper 300 causes the latch bolt 100 to rotate about the latch bolt fixing shaft 101 so that the latch bolt rotating lid 102 is engaged with the recesses of the upper and lower latch guides 400, So that it is rotated inside.

The latch bolt spring 104 is compressed so that the link 103 connected to the latch bolt fixed shaft 101 is pressed against the support wall 101. As a result, Since the latch bolt 100 is moved while retreating through the opening 402, the door can be opened easily and freely.

The lower latch guide 401 is removed so that the lever stopper 300 is retracted to move the latch bolt between the latch bolt turning rotations Fig. 8 shows a state in which it is out of the rotation locus of the latch bolt turning gap 102 so that the free rotation of the latch bolt 102 can be performed.

As can be seen from the above description, according to the present invention, as the drive lever 201 compresses the spring 301, the lever stopper 300 moves away from the pivotal locus of the latch bolt pivot 102 and the latch bolt pivot 102 The door can be opened without resistance of the latch bolt 100 when the door is pulled or pushed.

In the present invention, the latch bolt fixing shaft 101 of the latch bolt 100 is connected by the link 103 and receives force in the direction in which the latch bolt 100 retracts due to the force of opening the door, The latch bolt spring 104 is compressed and the latch bolt 100 is in a state capable of being immersed and capable of protruding by the elastic force of the latch bolt spring 104. [

 In this process, the latch bolt rotation path 102 moves along the circumference of the groove 403 formed symmetrically to the upper latch guide 400 and the lower latch guide 401, So that operation becomes possible.

As described above, according to the present invention, the lever stopper 300 is retracted only by pulling or pushing the knobs of the door lock and the inside of the door lock, whereby the latch bolt 100, which has been prevented from rotating by the lever stopper 300, Since the latch bolt 100 is instantly rotated even if the door is pushed to open the door, the door can be easily opened and closed without any pressure being applied thereto .

As described above, the present invention is not a general structure in which the latch bolt 100 slides or rotates, and the latch bolt 100 can be rotated in the horizontal direction by the vertical bolt fixed shaft 101, The lever stopper 300 enters into the rotation locus of the latch bolt rotation path 102 of the latch bolt 100 and the rotation of the latch bolt 100 is originally cut off A firm locking state can be ensured and a reliable locking state can be ensured while improving the reliability and durability of the operation.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Accordingly, it is a matter of course that various changes and modifications can be made in the form of dimensions, shapes and structures without departing from the technical scope of the present invention by those skilled in the art, Are included in the technical scope of the present invention.

100: Latch bolt 101: Latch bolt fixed shaft
102: Between latch bolt rotation 103: Link
104: latch bolt spring 200: lever handle
201: drive lever 202: drive chin
203: flow space 300: lever stopper
301 spring 302 spring partition
303: Bending section 304:
400: upper latch guide 401: lower latch guide
402: support wall 403:
500: housing 501: buried cover
502: dead bolt hauling ball 503: latch bolt hauling ball

Claims (6)

A latch bolt slidable by an indoor side handle or an outdoor side handle; and a dead bolt which protrudes and retracts when the controller drives the drive motor, wherein the dead bolt and the latch bolt are caught by the door frame of the door Or in an unlocked state to selectively lock or unlock the door lock,
Wherein the latch bolt is fixed by a vertical bolt fixed shaft, a latch bolt pivot is formed on one side of the latch bolt,
And a lever stopper which is moved forward and backward by a lever handle rotating by pulling or pushing the handle and a lever stopper which moves forward and backward on a locus of rotation between the rotation of the latch bolt by the drive lever, Wherein the rotatable latch bolt is configured to engage the latch member. The method according to claim 1,
A link passing through the support wall in the latch bolt fastening axis and a spring provided between the fastening axis of the latch bolt and the support wall. The method according to claim 1,
Wherein the latch bolt and the latch bolt are integrally formed so as to stand upright in a vertical line between the rotation of the latch bolt. The method according to claim 1,
Wherein a latch guide having a groove portion is vertically arranged to accommodate a rotation bolt rotation interval formed by the upper and lower protrusions formed between the upper and lower portions of the rotation of the latch bolt. The method according to claim 1,
The lever stopper includes a bending portion and a sliding contact portion extending in one direction from the bending portion. The sliding contact portion is slidingly installed in a horizontal plane passing through the partition wall. A spring is provided between the bending portion and the partition wall, Wherein the rotatable latch bolt is adapted to engage the latch member. The method according to claim 1,
Wherein two of the drive levers of the lever handle are formed with a flow space therebetween, and the upper end of the drive lever is positioned between the flow spaces.

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