KR101671408B1 - Door lock equipped with pull-push handle - Google Patents

Abstract

The present invention relates to a door lock which can open a door when a latch bolt of the door lock is pulled in not by rotating a handle of the door lock left and right but by rotating the handle back and forth. The door lock according to the present invention uses: a pinion which pulls in a latch bolt; a sawtooth portion which is formed at one outer circumferential surface of the pinion, wherein the sawtooth portion can be manufactured easily by simplifying a coupling structure of an elevating rack, which rotates the pinion when the handle rotates back and forth, and the door lock can be installed universally irrespective of handle rotating direction and door lock installation direction; and a pull-push handle having a corresponding sawtooth portion, which can be tooth-coupled with the sawtooth portion, wherein the sawtooth portion and the corresponding sawtooth portions are formed in opposite directions at first and second coupling portions of the elevating rack.

Description

[0001] Description [0002] DOOR LOCK EQUIPPED WITH PULL-PUSH HANDLE [0003]

The present invention relates to a door lock capable of opening a door with a latch bolt of a door lock being opened by pivoting forward or backward without rotating the handle of the door lock in left and right directions, The connecting structure of the elevating rack for rotating the pinion according to the rotation of the pinion can be easily manufactured and the door lock can be universally installed and used regardless of the direction in which the handle pivots and the direction in which the door lock is installed, And a corresponding toothed portion engageable with the toothed portion is formed in the opposite direction to the first and second connecting portions of the lift rake.

Generally, as shown in Figs. 7 and 8, a digital door lock (door lock) includes an outdoor main body 1 coupled to an outdoor side of a door, and an indoor side main body 1 connected to the indoor side of the door D 2), and a mortise (not shown) equipped with a dead bolt for locking function and a latch bolt for opening and closing the door.

This digital door lock is provided with an open button (B or an open / close knob) on the indoor side main body 2 for enhancing security and crime prevention. The outdoor side main body 1 is provided with a private number input part N, F), a security key (or card) contact portion (K), and the like, so that only a person allowed to enter and exit can unlock the dead bolt,

With the dead bolt unlocked, the door can be opened by pulling the latch bolt into the inside of the motis by using a handle provided on the indoor side and the outdoor side body.

In the case of the digital door lock as described above, most of the left and right rotatable handle is introduced, and the door can be opened while the latch bolt is drawn only when the handle is rotated by a predetermined angle or more.

In the case of a digital door lock having such a rotation type handle, there is a problem in that it is inconvenient to open the door when the object is held in both hands or when it is difficult to rotate the door.

Particularly, in the conventional digital door lock, since the door can be pulled or pushed open only when the rotary handle is rotated over a certain angle, the handle of the handle can be rotated, as in the case of a weak elderly person, There is a problem that the door which is difficult to maintain is inconvenient to open the door.

Recently, a full-push digital door lock capable of opening and closing the handle by pulling or pushing the handle back and forth (up and down) as in the case of the " push-pull type door lock body " .

As shown in Fig. 10 (hereinafter referred to as Fig. 10 for describing the prior art and the reference numerals of Figs. 1 to 9 for explaining the present invention are independent of each other), the indoor and outdoor bodies 100 and 200 and has a handle 110 and 210 installed to be able to push or pull the upper end as a supporting point so that the door can be opened only by pulling or pushing the handle after unlocking the dead bolt to be.

In this case, the turning direction of the handle varies according to the opening direction of the door, and the operating structure of the latch bolt by the handle operation must also be different between the outdoor side and the indoor side.

However, in the above-described patent, the power switching member, which is raised and lowered by the handles 110 and 210, is formed to have different structures of Y-shape and H-shape on the indoor side and the outdoor side respectively, Therefore, door locks corresponding to the opening directions of the doors and the direction in which the door locks are installed must be installed and installed.

In addition, in the above-mentioned patent, the upper ends of the Y-type power conversion member and the H-type power conversion member are bent with the upper and lower stepped portions interdigitated with the respective operation levers, There is a problem that the internal operation mechanism of the opening means built in the housing is very complicated and there is a great risk of breakage or failure of parts used for a long period of time.

Accordingly, the present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a pinion and a lifting / lowering mechanism that can be easily manufactured by simplifying a connection structure of a pinion and a lifting / lowering rack operating in conjunction with a handle, A pinion having a toothed portion formed on one outer circumferential surface so that one of the elevating races can be installed in a compatible manner irrespective of the direction and direction in which the door lock is installed, and two corresponding toothed portions that are raised and lowered by the handle, The door lock is provided with a pull-up handle which is formed in a direction opposite to that of the pull-lock handle.

Further, the present invention is characterized in that a guide hole formed in a vertical direction and in which a guide bolt is slidably engaged is provided on the body portion of the lifting rack so that the lifting and lowering of the lifting rack can be more stably performed, The lifting and lowering of the lifting and lowering lever is induced by the swinging motion of the lifting and lowering protrusion, so that the infant or the elderly can rotate the handle back and forth with less force and the lifting and lowering of the lifting and lowering rack can be made more stable while minimizing the thickness of the housing And the first and second connecting portions of the elevating and lowering lugs are brought into tight contact with the inner side surface of the housing so that the interlocking portion is separated from the inner side surface of the housing by a predetermined distance Push handle including a bent portion formed in a body portion so as to allow the pull-push handle to be pivoted.

According to an aspect of the present invention, there is provided a door lock using a full-push handle,

A door lock using a full-push handle capable of pulling or pushing a handle to pivot forward and backward to open the door while the latch bolt of the door lock is retracted,

A pinion which is coupled to a housing of a door lock and through which a latch bolt is pulled out through rotation, and a toothed portion formed on one outer peripheral surface;

A first connecting portion which is vertically extended from both sides of the body portion and has corresponding tooth portions which are engageable with the toothed portions in opposite directions, And a second connecting portion;

And a control unit.

In the door lock using the full-push handle according to the present invention,

The elevating rack includes a guide hole formed in a vertical direction in the body so that a guide bolt coupled to the housing is slidingly coupled to guide the lifting and lowering of the elevating rack.

Further, in the door lock using the full-push handle according to the present invention,

The body of the elevating rake includes an interlocking portion to which the lifting and lowering projection of the handle hinged to the housing is engaged.

Further, in the door lock using the full-push handle according to the present invention,

The elevating lever may be configured such that the first connecting portion and the second connecting portion are coupled to the housing such that the first connecting portion and the second connecting portion are in close contact with the inner surface of the housing,

The body portion may include a bending portion that allows the interlocking portion to be spaced apart from the inner surface of the housing by a predetermined distance.

 The door lock using the pull-push handle according to the present invention has a structure in which the teeth of the pinion are selectively engaged with the first and second connecting portions of the lifting rack that is raised and lowered by the operation of pulling or pushing the handle back and forth, It is possible to install the lift rake in a compatible manner regardless of the opening direction of the door lock and the direction in which the door lock is installed and the rotation mechanism of the pinion is made more stable due to the toothed coupling structure and the internal operation mechanism of the opening means is simplified, There is an effect that can be improved.

1 and 2 are a plan view and a side view schematically showing a state in which a door lock according to the present invention is installed on a door.
3 and 4 are exploded perspective views of a door lock according to an embodiment of the present invention.
FIGS. 5A, 5B, 6A, and 6B are a vertical sectional view and a front elevational view, respectively, for explaining an operation structure according to the present invention in a full-push direction.
Figs. 7 and 8 are external perspective views of an indoor side body and an outdoor side body of a door lock to which the present invention can be applied.
FIG. 9 is a front view for explaining a function of an interior side body of a door lock to which the present invention can be applied; FIG.
10 is a perspective view for explaining a conventional full-push type door lock.

While the present invention has been described in connection with certain exemplary embodiments, 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 invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

 In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

 In describing the door lock using the full-push handle according to the present invention, when an unambiguous approximate direction reference is defined with reference to FIG. 1 for convenience, the direction in which one side of the door D is viewed from the indoor side and the outdoor side The upper, lower, left, and right directions are determined as the direction in which the gravitational force acts in the downward direction in the front view of Figs. 5A to 6B with reference to the front view direction, Direction and the direction of the room side and the direction of the outdoor side will be described in combination, and unless otherwise specified in the detailed description and the claims of the invention relating to other drawings, directions are specified according to this standard.

Prior to the description, the present specification discloses a structure in which the handle 110 of the outdoor side body 1 is pushed (pushed) by assuming that the door D is opened to the indoor side as shown in Fig. 1, The handle 110 of the outdoor unit 1 is pulled and pulled out to open the door D while the door D is opened in the opposite direction The door D is pulled out or the door D of the indoor unit 2 is pushed to open the door D outdoors).

Hereinafter, a door lock using a full-push handle according to the present invention will be described with reference to the accompanying drawings.

1 and 2, which are a plan view and a side view schematically showing a state in which the outdoor main body 1 and the indoor main body 2 of the door lock to which the present invention is applied are provided on both sides of the door D, 5A, 5B, 6A and 6B, which are vertical sectional views and front view views for explaining the operation states of the embodiments of the present invention, 7 and 8, which are external perspective views of the side body 2, and FIG. 9, which is a front view for explaining the volume control function of the indoor side body 2 of the present invention,

The door lock using the full-push handle according to the present invention is mounted inside the housing 100 used as the base of the outdoor main body 1 and the indoor main body 2 and is used for pulling or pushing the handle 110, A pinion 10 coupled to the housing 100 so as to rotate leftward and rightward in a bidirectional direction, an opening unit O for opening the door D while the latch bolt (not shown) The lifting rack 20 is engaged with the handle 110 and coupled to the housing 100 so as to move up and down. The elastic returning unit R automatically returns the lifting rack 20.

The housing 100 can be utilized as both the outdoor main body 1 of the door lock and the base of the indoor main body 2. The basic structure of the housing 100 is similar,

7, when the housing 100 is used as the outdoor main body 1 of the door lock, a password input portion N for unlocking the door D, a fingerprint input portion F And a security key (or card) contact portion K,

In contrast, when the housing 100 is used as the indoor main body 2 of the door lock as shown in FIG. 8, the battery mounting portion 104 for supplying power to the front portion of the housing 100 is opened / closed by the cover 104c And the opening button B for unlocking the door D is provided.

At this time, the fingerprint input unit F of the outdoor main body 1 may be exposed to the front of the housing 100. However, in order to prevent malfunction due to unnecessary contact or inconvenience of use, the fingerprint input unit F The fingerprint input unit F is exposed to the outside of the housing 100 through a pressing operation or a button operation in a state where the fingerprint input unit F is embedded in the housing 100. [

The housing 100 of the present invention is provided with speaker holes S on both the outdoor main body 1 and the indoor side main body 2 to operate the registration button B1 of the indoor side main body 2, A guide or the like is output through the speaker hole S of both the main bodies 1 and 2 so that the user can input a desired menu through the password input unit N of the outdoor main body 1 .

9, a volume control button 105 is provided on the battery mounting part 104 of the indoor main body 2 so that the user can more easily adjust the volume of the sound in a stepwise manner to store a password, a card key, So that it can be registered or changed.

Accordingly, when registering or changing passwords, fingerprints, cards, and the like in order to use the conventional door lock, it is possible to reduce the inconvenience of reading and understanding the separate user's manual, and adjusting the volume control to a relatively large number of levels, There is an effect that can be used.

By registering or changing such passwords, card keys, fingerprints, or the like only when authenticated by a fingerprint registered as a master, the security and security of the door lock can be enhanced.

That is, in the case of a conventional door lock, if there are many users entering or leaving the home, a driver, a hotel, a dormitory or a company, the third party can easily register or change the unlocking means There is a risk that the security and security of the door lock will be lost. However, the present invention can solve the conventional problems by registering the master fingerprint.

It is desirable that the registration of such a master fingerprint is possible for one to five persons in accordance with members of the family (or the crime prevention officer of the company).

5A to 6B, the housing 100 having the above-described structure transmits the driving force of the electric motor M and the electric motor M, which operate when the lock is released, A dead bolt opening and closing means made up of various shafts and / or gears for unlocking bolts (not shown) and the like and a latch bolt (not shown) of the motis are pulled into the inside of the motis by the pull- The opening means O is incorporated.

3 to 6B, the pinion 10 has a shaft portion 13 protruded from the rear surface thereof and is axially coupled to the housing 100 to rotate. The pinion 10 has a tooth portion 11 on one side, And a fastening groove 15 protruding from the front surface thereof for fitting a rectangular shaft connected to the latch bolt.

The latching groove 15 of the pinion 10 is inserted into a rectangular shaft connected to a latch bolt driving part of the Mortis buried in the door D so that the latch bolt is drawn into the Mortis according to the bidirectional rotation of the pinion 10, It is withdrawn from Mortis.

The pinion 10 is connected to the coupling hole 106 of the housing 100 by reversing the direction of the pinion 10 so that the toothed portion 11 faces one side or the other side of the pinion 10 and pulls or pushes the handle 110 And is bi-directionally rotated by the coupling structure of the toothed portion 11 when the lifting and lowering rack 20 ascends and descends.

5A, when the elevating lever 20 is pulled up or the handle 110 is pushed as shown in FIG. 6A and the elevating lever 20 is lowered, the pinion 10 is moved in one direction The pinion 10 rotates in the other direction (clockwise direction in the drawing) when the lift bolt 20 is returned to the home position, and the latch bolt is pulled out from the motis do.

The lifting and lowering lever 20 is coupled to the housing 100 by the handle 110 so that the driving force generated by pulling or pushing the handle 110 is converted into a vertical reciprocating motion, (10) to rotate.

The elevating and lowering rake 20 includes a body portion 21 interlocked with the handle 110 and a corresponding serration portion 25a which is connected to the body portion in the vertical direction and is engaged with the toothed portion 11, 25b are formed in opposite directions to each other, and a second connecting portion 25B.

The lifting and lowering rack 20 is connected to a handle 110 hinged to the housing 100 by an interlocking portion 22 provided on the body portion 21 to ascend and descend.

As described above, when the handle 110 is pivoted or pushed forward and backward, and the elevation protrusion 112 is swung up and down so that the elevation lever 20 is raised and lowered, the elevation protrusion 112 is engaged The interlocking portion 22 is formed to pass through the body portion 21 so as to fit the lifting and lowering protrusion 112,

The connecting portion 22 may have a specific shape depending on the interlocking structure of the elevating lever 20 and the handle 110 (for example, the body portion of the handle 110 and the elevating lever 20 are engaged with each other in a gear structure) The handle 110 is pivoted or pivoted to pivot so that the lifting and lowering lever 20 is lifted or lowered.

A guide bolt 108 coupled to the housing 100 is slidably engaged with a guide hole (not shown) formed in a vertical direction so as to guide the ascending / descending movement of the elevating lever 20 to the body portion 21 of the elevating lever 20 23 are formed.

The first and second connecting portions 25A and 25B of the elevating and lowering leg 20 are connected to each other in the vertical direction on both sides of the body portion 21. The first connecting portion 25A and the second connecting portion 25A ) the other surface and one side surface of the second connecting portion (25B), the first and second mating toothed part (25a) (25b) are formed, respectively, of

The pinion 10 is disposed between the connecting portions so that the teeth 11 are selectively engaged with the first corresponding tooth portions 25a or the second corresponding tooth portions 25b.

As shown in Fig. 1, when the door D is pushed out to the room side from the outdoor side,

The housing 100 used as a door lock installed on the indoor side has a structure in which the handle 110 is pulled and rotated as shown in Figures 5A and 5B so that the toothed portion 11 faces the pinion The toothed portion 11 is engaged with the first corresponding toothed portion 25a formed on the other side of the first connecting portion 25A so that the handle 110 is engaged with the first corresponding toothed portion 25a, The lifting rack 20 is lifted by the pulling action of the pinion 10 to rotate the pinion 10 in the counterclockwise direction to draw the latch bolt,

Conversely, the housing 100 used as a door lock provided on the outdoor side has a structure in which the handle 110 is pushed and rotated as shown in Figs. 6A and 6B, so that the teeth 11 face the other side The toothed portion 11 is engaged with the second corresponding toothed portion 25b formed on one side of the second connecting portion 25B so that the handle 110 The pinion 10 is rotated in the counterclockwise direction to draw the latch bolt.

In this case, if the pinion 10 rotates in the clockwise direction to draw the latch bolt differently from the drawing, the toothed portion 11 of the pinion 10, which is built in the door lock provided on the outdoor side, The toothed portion of the pinion 10 which is engaged with the second corresponding tooth portion 25b and built in the door lock provided on the indoor side can be engaged with the first corresponding tooth portion 25a of the lift rake 20.

It is possible to install the lift rake 20 in a compatible manner in both the installation direction of the door lock, that is, when the door lock is installed at the left end of the door D, or when the door lock is installed at the right end of the door D .

That is, when the door lock is installed at the left end of the door D and when the door lock is installed at the right end of the door D, the direction in which the pinion 10 rotates (i.e., The lift rake 20 can be universally installed and used in accordance with the forward and backward rotating structure of the handle 110 irrespective of the rotational direction of the pinion 10. [

As described above, in the case of the door lock, it is common that the outdoor main body 1 and the indoor main body 2 are installed on both sides of the door. Therefore, if one handle 110 is pulled, The pinion 10 and the lift rake 20 can be selectively installed and coupled to the respective housings 100 constituting the outdoor main body 1 and the indoor main body 2, The door lock of the present invention can be generally installed and used in all types of doors D irrespective of the opening direction of the door D and the installation direction of the door lock.

In the present invention, since the lifting and lowering return of the lifting rack 20 or the lifting and returning of the lifting rack 20 are automatically performed, the pinion 10 is rotated to the proper position, And an elastic returning means (R) for effecting a primary locking of the door (D).

As described above, the direction in which the pinion 10 is rotated so that the latch bolt is drawn in is determined in one direction in accordance with the direction in which the door lock is installed,

According to the present invention,

The pinion 10 is rotated in one direction while being lifted by the pulling action of the handle 110 so that the lift rake 20 in which the latch bolt is pulled is automatically returned to the original position by the elastic return means R,

Or the pinion 10 is rotated in one direction while being lowered by the pushing operation of the handle 110 so that the lift rake 20 in which the latch bolt is pulled is automatically lifted up through the elastic return means R to return to the home position ,

As the pinion 10 returns to its original position, the drawn latch bolt is pulled out again and the door is firstly locked.

The elastic restoring means R can be realized by fixing one end of a known spring that exerts an elastic force in the compression direction to the housing 100 and fixing the other end of the spring to the lifting rack 20,

The connecting portions 25A and 25B of the lifting rack 20 to be engaged with the pinion 10 are changed according to the direction in which the door lock is installed so that the elastic force of the elastic returning means R is transmitted to the lifting rack 20, It is more preferable that the lifting and lowering lever 20 can stably perform the returning operation.

The present invention is characterized in that both end portions 31 of the elastic member 30, which is a kind of torsion spring, are made of a material different from that of the elevating lever 20 having both side fastening portions 24a and 24b formed at different heights So as to be engaged with both of the engaging portions 24a and 24b.

More specifically,

The elastic returning means (R)

And an elastic member (30) fixedly coupled to the guide bolt (108) and having a circular twist portion (32) exerting an elastic force in a direction in which both ends (31)

The first elevating rack 20A (first embodiment) for pulling up the pinion 10 while being raised by the pulling action of the handle 110 is configured such that the both side engaging portions 24a are engaged with the circular twist portions 32 And both ends 31 of the elastic member 30 are engaged with the housing 100 with the both ends 31 of the elastic member 30 facing upward and the both ends 31 are engaged with the upper portions of the both side engaging portions 24a Coupled,

The pushing second lift rake 20B (second embodiment) for pushing the pinion 10 while descending due to the pushing action of the handle 110 is configured such that the both side engaging portions 24b are engaged with the circular twist portions 32 And both ends 31 of the elastic member 30 are coupled to the housing 100 with the both ends 31 of the elastic member 30 facing downward so that the both ends 31 of the elastic member 30 are engaged with the lower ends of the both side engaging portions 24b .

That is, the both side engaging portions 24a of the first elevating rack 20A are formed so as to be short connected to the height of the upper end of the guide hole 23 in the first body portion 21A,

The both side engaging portions 24b of the second elevating and lowering leg 20B are formed to extend from the second body portion 21B downward to the lower end height of the guide hole 23,

The elastic member 30 is engaged with the both side engaging portions 24a of the first elevating lever 20A so that both ends 31 face upward and the elastic force is exerted so that the elevating lever 20A is lowered,

Or the both ends 31 are engaged with the engaging portions 24b of the second elevating lever 20B so that the elevating lever 20B is lifted upward.

Therefore, when the first elevating lever 20A is lifted by the pull-push operation of the handle 110 or the second elevating lever 20B is lowered, the elastic members 30 and the lift rails 20A, The both ends 31 of the elastic member 30 are pinched by the engagement structure of the engaging portions 24a and 24b of the both sides so that the elastic force acts on the lift rails 20A and 20B,

When the hand is released from the handle 110 after the door D is opened, both ends 31 are opened again by the elastic force of the elastic member 30 to return the lift rails 20A and 20B, The grip portion 113 of the handle 110 is automatically returned to its original position.

The elastic members 30 uniformly exert an elastic force on both the left and right sides of the lift rails 20A and 20B so that the elasticity of the elastic members 30 A stable automatic return can be ensured.

When the elevating and lowering racks 20 are interlocked with each other so as to move up and down by the swing motion of the elevating and lowering protrusion 112 as shown in the drawing,

The elevating rack 20 of the present invention is configured such that the first connecting portion 25A and the second connecting portion 25B are coupled to the housing so as to be in close contact with the inner surface of the housing 100,

The body portion 21 includes a bent portion 21a that separates the interlocking portion 22 from the inner side surface of the housing 100 by a predetermined distance.

The bending portion 21a is configured to fit the first and second connection portions 25A and 25B to the inner surface of the housing 100 to be engaged with the pinion 10, So that the swing radius of the lifting protrusion 112 is increased so that the lifting and lowering of the lifting rake 20 is performed at a predetermined height or higher.

Thus, the operating stability of the opening means O can be ensured and the thickness of the housing 100 can be minimized.

The second lift rake 20B raised by the pushing operation of the handle 110 protrudes upward between the first and second connection portions 25A and 25B and is lifted up and down by the second lift rake 20B, And a detent projection 20s for restricting the height.

The detent projection 20s is configured such that the second lift lever 20B is excessively raised due to the elastic force of the elastic member 30 so that the impact is applied to the pinion 10 to break the teeth 11 and the like prevent.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood that various changes, substitutions and alterations can be made hereto by those skilled in the art, Changes and substitutions are to be construed as falling within the scope of protection of the present invention.

D: Door 1: Outside body
2: indoor side body
O: opening means 10: pinion
11: serration 13: rotating shaft
15: Square shaft 20, 20A, 20B:
21A, 21B: body portion 21a:
22: interlocking part 23: guide hole
24a, 24b: engaging portions 25A, 25B:
25a, 25b: corresponding tooth portion 20s: stopping projection
R: return means 30: elastic member
31: end 32: circular twist
100: Housing N: Password input unit
F: fingerprint recognition part K: key contact part
S: Speaker hole B: Open button
B1: Registration button
110: handle 112:

Claims (4)

A door lock using a pull-push handle capable of pulling or pushing the handle (10) to pivot forward or backward to open the door while the latch bolt of the door lock is retracted,
A pinion (10) coupled to the housing (100) of the door lock and having a serrated portion (11) formed on one outer circumferential surface of the latch bolt through rotation;
A body portion 21 interlocked with the handle 10 so as to be vertically moved up and down by the handle 10 by the handle 100 and connected vertically at both sides of the body portion 21, (20) composed of a first connecting portion (25A) and a second connecting portion (25B) in which corresponding serration portions (25a) and (25b) engageable with the first connecting portion (11) are formed in opposite directions to each other; , ≪ / RTI >
The pinion 10 is disposed between the first connection portion 25A and the second connection portion 25B so that the pinion 10 is reversed so that the toothed portion 11 faces one side or the other side , The toothed portion 11 is selectively engaged with the first corresponding toothed portion 25a or the second corresponding toothed portion 25b,
Depending on the pulling action of the handle 10 or the pushing action of the handle 10,
As the lifting rack 20 is lifted, the pinion 10 is rotated to draw the latch bolt,
Or the pinion 10 is rotated while the lifting rack 20 is lowered to draw the latch bolt,
The door lock according to any one of claims 1 to 3, characterized in that the handle (10) is universally usable regardless of the forward and backward rotation structure of the handle (10) according to the opening direction of the door. The method according to claim 1,
The elevating and lowering rack 20 includes guide holes formed in a vertical direction in the body portion 21 so that guide bolts 108 coupled to the housing 100 are slidingly coupled to guide the elevating and lowering of the elevating lever 20 23)
And an elastic returning means (R) for lowering and returning the ascending / descending lever (20) after the ascending / descending of the ascending / descending lever (20)
The elastic returning means (R)
And an elastic member (30) fixed to the guide bolt (108) and having a circular twist portion (32) exerting an elastic force in a direction in which both ends are opened,
The lifting and lowering lever 20 is formed such that the both side engaging portions 24a to which both ends of the elastic member 30 are engaged are formed at positions relatively higher than the circular twisting portions 32,
And the both ends of the elastic member (30) are coupled with each other with the upper ends of the elastic members (30) facing upward, and both ends of the elastic members (30) are engaged with the upper ends of the both side latching parts (24a). The method according to claim 1,
The elevating and lowering rack 20 includes guide holes formed in a vertical direction in the body portion 21 so that guide bolts 108 coupled to the housing 100 are slidingly coupled to guide the elevating and lowering of the elevating lever 20 23)
And an elastic returning means (R) for raising and lowering the lifting rack (20) after descending of the lifting rack (20)
The elastic returning means (R)
And an elastic member (30) fixed to the guide bolt (108) and having a circular twist portion (32) exerting an elastic force in a direction in which both ends are opened,
The lifting and lowering lever 20 is formed such that the both side engaging portions 24b at both ends of the elastic member 30 are engaged with each other at a relatively lower position than the circular twisting portion 32,
And the both ends of the elastic member (30) are coupled to each other with the lower ends thereof facing downward, and both ends of the elastic members (30) are engaged with the lower portions of the both side fastening portions (24b). 4. The method according to any one of claims 1 to 3,
The body portion 21 of the lifting rack 20 includes an interlocking portion 22 to which the lifting and lowering projection 112 of the handle 10 hinged to the housing 100 is engaged. - Door lock with push handle.

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