KR101811723B1 - Door-lock apparautus - Google Patents

Abstract

A door lock lock device for locking / unlocking a door by driving a lock door incorporated in the door is disclosed.
The door lock device according to the present invention comprises a housing, a lever which can be pivoted by a push or a pull to a certain extent, a flow member which moves up and down by the movement of the projecting piece of the lever and a pivoting member which pivots according to the movement of the flow member, And a rotating gear is provided on the rotating member so as to engage with the rack gear. The rack gear is mounted on the rotating member in the up and down direction.

Description

{DOOR-LOCK APPARAUTUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock apparatus, and more particularly, to a door lock apparatus for locking / unlocking a door by driving a lock hole built in the door.

Generally, the door lock apparatus includes a lock mechanism provided inside a door, a lock mechanism driving body for driving the lock mechanism to release the lock mechanism, a housing surrounding the lock mechanism drive body, and a lever provided on the housing for operating the lock mechanism drive body .

A related art related to this is a push-pull door lock device capable of selecting a lever operating direction disclosed in Korean Utility Model Publication No. 20-0473021.

1 is an exploded perspective view of a push-pull door lock device (hereinafter, referred to as 'door lock device') capable of selecting a lever operation direction according to the prior art.

Referring to FIG. 1, the door locking device according to the related art includes a housing 20 having a lever 30, which is coupled to the inside and outside of the door by a support 10 and has a protrusion 31 formed on the door side, , And an operating lever (not shown), which is located between the support 10 and the housing 20 and flows in accordance with the rotation of the projection 31 of the lever 30, And a selection member 50 provided on the rear surface of the housing 20 for limiting the rotation range of the projection 31 for selecting the operation of the push and pull of the lever 30.

Here, the driving unit includes a flow member 41 having front and rear insertion grooves formed on the front surface thereof and having a latching protrusion formed on one side thereof, a first gear 42 having protrusions inserted into the latching jaws of the flow member 41, And a second gear 43 meshed with the first gear 42 and joined to the operation portion at the center portion to the locking opening of the door. The selection member 50 is formed with a first selection hole 61 and a second selection hole 62 having different heights in order to limit the rotation range of the projection.

According to the conventional art, since the door is opened in both the push or pull of the lever 30, there is an advantage that the door opening direction and the operation direction of the lever 30 need not be coincident with each other.

However, the component for driving the lock mechanism is not limited to the flow member 41, the first gear 42 inserted into the engagement jaw of the flow member 41, and the second gear 42 engaged with the first gear 42 43 and the selection member 50 for limiting the range of rotation of the protruding portion 31. This complicates the structure, which results in an excessively complicated assembling process and an increase in manufacturing cost.

KR 20-0473021 Y1 KR 20-0475874 Y1 KR 10-0907642 B1 KR 20-0325780 Y1

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a door locking device for driving a locking claw by operating a lever of a door so as to simplify the structure thereof to improve the durability of the device and remarkably lower the manufacturing cost .

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description

According to an aspect of the present invention, there is provided a door locking device for locking / unlocking a door by driving a locking hole incorporated in a door, the door locking device comprising: a housing; a lever rotatable by a push or pull And a driving member which is composed of a moving member that moves up and down by the movement of the projecting piece of the lever and a rotating member that rotates in accordance with the movement of the moving member and drives the locking opening in accordance with the rotation of the lever, And a pivoting gear meshing with the rack gear is provided to the pivoting member.

Further, the lever is provided with a lever pivoting portion for pivoting the lever, and the lever pivoting portion includes a hollow cylindrical member to be engaged with the cover, a lever that is inserted into the cylindrical member and has both ends fixed to the lever, And a pivot shaft.

Here, a projecting piece insertion hole may be formed in the lower portion of the flow member so that the projecting piece is inserted and fixed.

In addition, a rectangular pivoting member inlet hole may be formed in the upper portion of the flow member to allow the pivoting member to be inserted, and a rack gear may be formed in any one of the longitudinal inner surface of the pivoting member inlet hole.

Further, the thickness of the longitudinal side flow member on which the rack gear is formed can be formed to be relatively thick.

On the other hand, the tilting member may include a cylindrical body rotatably fixed to a circular drive shaft support portion formed on the inner surface of the cover, and a turning gear provided on the outer circumference of the body. Here, the rotating gear may be formed of either a circular gear or a semicircular gear.

The circular gear includes a first braking portion protruding in a direction opposite to an inner surface of the cover at one of the teeth of the circular gear. The first braking portion includes a first braking portion disposed on the inner surface of the cover, So that the pivotal movement of the pivotal member is brought into contact with the engaging jaw or the second engaging jaw.

Further, the circular gear includes a second braking portion formed to have a large width different from other teeth of the circular gear, and the second braking portion is capable of braking the rotation of the pivoting member by engaging with the rack gear in a shifted state when the pivoting member is rotated .

For example, when the door is unlocked by the pull of the lever, the pivoting member may be rotated in the clockwise direction and stopped as the first pivoting portion abuts the first latching jaw.

Further, when the door is unlocked by the pushing of the lever, the pivoting member can be rotated in the counterclockwise direction and stopped as the first braking portion abuts on the second stopping jaw.

The semicircular gear includes a serrated portion formed on one side of the outer periphery and a round portion formed on the other side. The first and second semicylindrical portions formed on the right and left sides of the driving shaft supporting portion when the pivoting member rotates are protruded .

For example, when the door is unlocked by the spring of the lever, the pivoting member rotates in the clockwise direction and can be stopped as the braking member abuts against the first partition.

When the door is unlocked by the pushing of the lever, the pivoting member rotates in the counterclockwise direction and can be stopped as the braking member abuts against the second partition.

On the other hand, a guide portion may be provided on the inner surface of the cover so that the flow member can be smoothly moved up and down.

Further, a descending blocking piece may be provided on the lower side of the driving shaft supporting portion to prevent the descending of the flow member at a predetermined position when the flow member is moved downward.

According to the structure of the present invention, the driving body for driving the locking hole incorporated in the door is constituted by the rotating member provided with the rack gear and the rotating member provided with the rotating gear, thereby simplifying the structure, improving the durability of the product, .

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is an exploded perspective view of a door lock device according to the prior art;
2 is an exploded perspective view of the door lock device according to the present invention.
3 is an exploded perspective view of the lever pivoting member shown in Fig.
4 is a front perspective view of the cover shown in Fig.
Figure 5 is a perspective view of the flow member shown in Figure 2;
FIG. 6 is a front perspective view of the tiltable member shown in FIG. 2,
Fig. 7 is a front perspective view showing another embodiment of the pivoting member shown in Fig.
Figure 8 is a rear perspective view according to one embodiment of the cover shown in Figure 2;
Figure 9 is a rear perspective view according to another embodiment of the cover shown in Figure 2;
10 is an exemplary view showing an operation process of a component according to a pool of a lever in a door lock device according to the present invention.
FIG. 11 is an exemplary view showing an operation process of a component according to pushing of a lever in the door lock device according to the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, configurations, operations, and effects of a door lock device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is an exploded perspective view of the door lock device according to the first embodiment of the present invention, FIG. 3 is an exploded perspective view of the lever pivoting member shown in FIG. 2, and FIG. 4 is a rear perspective view of the cover shown in FIG.

2 and 4, a door lock device according to the present invention is a door lock device for locking / unlocking a door by driving a lock hole built in a door, and includes a cover 200 and a coupling plate A lever 100 installed on the outer surface of the cover 200 and capable of pivoting by a push or pull within a certain range and a protrusion 120 provided on one side of the lever 100, A moving member 340 which moves up and down by the movement of the protruding piece 120 and a tiltable member 320 which rotates in accordance with the movement of the moving member 340, (300).

The locking bolt is installed inside the door between the inner side and the outer side. Generally, the locking bolt has a body installed inside the door, a latch bolt installed inside the body and locked / unlocked by the operation of the lever 100, And dead bolts that are locked or unlocked manually or automatically with a key or button. The construction of the locking claw is generally the same as that of the conventional construction, and a detailed description thereof will be omitted.

The housing 200 includes a coupling plate 400 having a plate shape coupled to an inner surface or an outer surface of the door, and a cover 200 coupled to the coupling plate 400.

The cover 200 may be formed in various shapes, but in this embodiment, as shown in FIGS. 2 and 3, the cover 200 is formed in a substantially rectangular shape, and both sides thereof are made of a plate frame. The cover 200 is tilted in the outer direction of the cover 200 so that the push or pull operation can be performed. Then, the cover 200 is bent at a predetermined position to be inclined inward of the cover 200. A protruding piece receiving hole 210 is formed in the inner bent portion to receive the protruding piece 120 and a cylindrical member fixing hole 220 is formed below the protruding piece receiving hole 210 so that a cylindrical member 142, . On the inner surface of the cover 200, a drive shaft supporting portion 230, a locking protrusion 240, a partition 250 and the like are provided (see FIGS. 8 and 9).

The lever 100 is installed on the outer surface of the cover 200 and is pivoted by a push or pull so as to rotate within a certain range with respect to the lever pivoting portion 140. The lever 100 has a rectangular plate structure having a predetermined length and width, A protruding piece 120 connected to the flow member 340 is formed on one side and a lever turning part 140 is provided on a lower side of the protruding piece 120.

The protruding piece 120 protrudes inward of the cover 200 and the end of the protruding piece 120 passes through the protruding piece receiving hole 210 located in the cover 200 and is inserted into the protruding piece fixing hole 344 of the flow member 340 .

The lever turning unit 140 has a structure in which the lever 100 is rotatable and is inserted into the hollow cylindrical member 142 coupled to the cover 200 and the cylindrical member 142, (Not shown).

Here, the central portion of the lever pivot shaft 144 is formed as a cylindrical body so as to be rotatable within the cylindrical member 142, and both ends thereof are formed in a rectangular cross-section, and a lever pivot shaft 144 is provided on the lever And a fastening hole 144a is formed so as to be screwed. A screw fastener 142a is formed on one side of the outer circumference of the cylindrical member 142 so that the cylindrical member 142 is fixed to the cover.

With this configuration, the lever pivot shaft 144 rotates in the cylindrical member 142 in accordance with the push or pull of the lever 100, and the protruding piece 120 moves up and down.

The lever turning part 140 and the protruded piece 120 may be installed at various positions on the outer surface of the cover 200 according to the change of the inclined structure of the cover 200, It is preferable to be located at the center or the bottom of the cover 200 for convenience.

Fig. 5 is a perspective view of the flow member shown in Fig. 2, Fig. 6 is a front perspective view of the pivoting member shown in Fig. 2, and Fig. 7 is a front perspective view according to another embodiment of the pivoting member shown in Fig.

The driving body 300 serves to drive the locking mechanism according to the push or pull of the lever 100 and includes a moving member 340 and rotating gears 324 and 326 provided with the rack gears 342 in the vertical direction And a pivoting member 320 to be installed. Here, the rack gear 342 and the flow member 340 may be integrally coupled to each other, but they are integrally formed by injection molding.

The flow member 340 may be formed in various shapes, but is preferably formed in a rectangular shape having a constant thickness. A protruding piece fixing hole 344 is formed in the lower portion of the flow member 340 so that the protruding piece 120 of the lever 100 is inserted and fixed. A rectangular pivoting member inlet A hole 346 is formed. At this time, a rack gear 342 is provided on one of the inner side surfaces of the vertical side of the pivoting member inlet hole 346, and the rack gear is engaged with the pivoting gear of the pivoting member which is drawn into the pivoting member inlet hole.

It is preferable that the thickness of the longitudinal side flow member 340 in which the rack gear 342 is formed is thicker than the longitudinal side flow member 340 in which the rack gear is not formed. When the diameter of the pivotal gears 324 and 326 is larger than the width of the pivotal member receiving hole 346 in the transverse direction, a portion of the pivotal gears 324 and 326, which is not engaged with the rack gear 342, Side flow member 340 which is not formed.

The tiltable member 320 is composed of a cylindrical body 322 rotatably fixed to a drive shaft support 160 formed on the inner surface of the cover and pivotal gears 324 and 326 provided on the outer circumference of the body 322 And a through hole 322a is formed in the center of the body 322 in the longitudinal direction. Here, the through hole 322a is fixed by fitting a bar-shaped connecting hole connected to the latch bolt driving portion of the locking hole so as to provide the locking force of the turning member 320 to the locking hole. For this purpose, it is preferable that the through hole 322a has a rectangular cross-sectional shape.

The rotating gears 324 and 326 are formed integrally with the body 322 in such a manner that the rotating gears 324 and 326 engage with the rack gear 342 to rotate the body 322. The rotating gears 324 and 326 are preferably formed integrally with the body 322, It can be composed of one.

The circular gear 324 which is one embodiment of the rotating gears 324 and 326 includes a first braking portion 324a protruding in a direction opposite to the inner surface of the cover 200 at one of the teeth of the gear, And may include a second braking portion 324b formed to have a different width. Here, the toothed portion in which the first braking portion 324a is formed may be formed like the other teeth but is preferably configured to have a large width different from other teeth in consideration of the width of the first braking portion 324a. For reference, the cover 200 to which the first braking portion 324a and the second braking portion 324b are applied refers to the cover 200 of an embodiment to be described later.

The first bending portion 244a or the second bending jaw 241 located on the inner surface of the cover 200 when the tiltable member 320 is rotated by the push or pull of the lever 100, Since the second braking portion 324b has a large width unlike the other teeth, the second braking portion 324b functions to rotate the rack gear 342 when the pivoting member 320 rotates, So as to brake the rotation of the tiltable member 320. [

The semicircular gear 326, which is another embodiment of the turning gears 324 and 326, includes a tooth portion 326-1 formed on one side of the outer periphery and a round portion 326-2 formed on the other side. The braking piece 326a protrudes from the round portion 326-2 in a direction opposite to the inner surface of the cover 200 and the braking piece 326a is engaged with the cover 200 during rotation of the tilting member 320. [ The cover 200 abuts on the first partition 251 or the second partition 2520 located on the inner side of the cover 200. Here, the cover 200 refers to the cover 200 of another embodiment of the cover 200 described later.

Fig. 8 is a rear perspective view according to one embodiment of the cover shown in Fig. 2, and Fig. 9 is a rear perspective view according to another embodiment of the cover shown in Fig. Specifically, FIG. 8 shows an inner surface of a cover applied when the rotating gear is a circular gear, and FIG. 9 shows an inner surface of a cover applied when the rotating gear is a semicircular gear.

Referring to FIG. 8, a cover 200 according to an exemplary embodiment of the present invention includes a cover 200 on which a pivoting member 320 is rotatably fixed, a driving shaft support 230, A guide part 260 formed at both sides of the driving shaft supporting part 230 so as to be flat in the longitudinal direction so that the flow member 340 can be moved up and down smoothly, And a lowering stop piece 270 which is positioned below the projecting piece insertion hole 210 and which prevents the lowering of the flow member 230 at a predetermined position when the flow member 230 is moved downward is provided do.

The engaging protrusions 240 may be formed to have different numbers depending on the size and shape of the circular gear 324. The engaging protrusions 240 are preferably formed by first to fourth engaging protrusions 241, 242, 243, and 244, So as to be spaced along the circumferential direction.

The first and second stopping jaws 241 and 242 come into contact with the first braking portion 324a formed on the circular gear 324 when the tilting member 320 rotates.

Referring to FIG. 9, on the inner surface of the cover 200 according to another embodiment, a first partition 251 and a second partition 252, which are symmetrically formed on the drive shaft support 230 and the drive shaft support 230, A guide portion 260, a projecting piece insertion hole 210, and a descending blocking piece 270 are provided. Here, the driving shaft supporting portion 230, the guide portion 260, the protruding piece insertion hole 210, and the descending blocking piece 270 are the same as those in the first embodiment, and a detailed description thereof will be omitted.

The first and second partition walls 251 and 252 are portions where the braking member 326a of the tilting member 320 abuts when the tilting member 320 is seated on the drive shaft supporting portion 230. That is, when the pivoting member 320 rotates on the driving shaft supporting part 230, the braking piece 326a moves clockwise or counterclockwise from above the straight line formed by the partitions 251 and 252 to move the first or second partitions 251, 252, respectively. For this purpose, it is preferable that the brake piece 326a is biased to one side in the circumferential direction of the round portion 326-2. The second barrier ribs 252 may be formed in the same shape as the first barrier ribs 251. However, the second barrier ribs 252 may have a fan shape in consideration of the range of rotation of the flow member 340 in accordance with the vertical movement distance. For reference, in the case of a fan shape, the movement width of the braking member 326a is reduced.

Specifically, when the door is unlocked by the pull of the lever 120 or the lifting of the sliding member 140, the pivoting member 320 rotates in the clockwise direction and accordingly the braking member 326a is rotated in the second partition 252 And moves to the first bank 251 side. After a certain range of rotation, the tiltable member 320 is stopped as the braking member 326a abuts against the first partition wall 251.

When the door is unlocked by the pushing or sliding of the sliding member 140 of the lever 120, the pivoting member 320 rotates counterclockwise so that the braking member 326a moves from the first partition 251 to the second And moves toward the partition 252 side. After a certain range of rotation, the tiltable member 320 is stopped as the braking member 326a abuts on the second partition wall 252. [

FIG. 10 is a view illustrating an operation process of a component according to the pull of a lever in the door lock apparatus according to the present invention, and FIG. 11 is a view showing an operation process of the component according to the push of the lever in the door lock apparatus according to the present invention. Fig. For reference, Figs. 10 and 11 show an embodiment in which the rotating gear is a circular gear.

10, when the user pulls the lever 100, the flow member 340 is in contact with the falling stop piece 270 as shown in FIG. 10, in which the door lock device of the present invention is used as a pull type lock device Is linearly moved upward. The pivoting member 320 rotates in the clockwise direction and the first braking member 324a of the pivoting member 320 moves from the fourth stopping jaw 244 to the first stopping jaw 241 side.

The rotating member 320 stops after the first braking member 324a of the circular gear 324 comes into contact with the first engaging jaw 241 and then releases the lever 100, A restoring force is applied by the second arm, and the second arm is rotated in the opposite direction and returned to the original position.

11, when the user pushes the lever 100, the flow member 340 is positioned at a position spaced apart from the lower stopper piece, as shown in FIG. 11, when the door lock device of the present invention is used as a push- So that the tilting member 320 rotates in a counterclockwise direction and the first bending portion 324a of the tilting member 320 moves from the third stopping jaw 243 to the second stopping jaw 242, .

The rotating member 320 stops after the first braking member 324a of the circular gear 324 comes into contact with the second engaging jaw 242. When the lever is released, And then returns to the original position by rotating in the opposite direction.

The door lock apparatus according to the present invention is structured such that a drive member 300 for driving a lock hole built in a door is connected to a flow member 340 having a rack gear 342 and a pivot member The present invention can simplify the structure by improving the durability of the product and remarkably lowering the manufacturing cost and by simply changing the position of the tiltable member 320, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. It is to be understood that various equivalents and modifications may be substituted for those at the time of the present application.

100: lever 120: protruding piece
140: lever turning part 142: cylindrical member
144: lever rotating shaft 200: cover
210: protruding piece inlet hole 220: cylindrical member fastener hole
230: drive shaft support part 240:
250: partition wall 260: guide portion
270: descent prevention piece 300: drive body
320: tiltable member 322: body
322a: through hole 324, 326: turning gear
324a: first braking section 324b: second braking section
326-1: serration portion 326-2: round portion
326a: braking piece 340: flow member
342: Rack gear 344:
346: Pivoting member inlet hole 400: Coupling plate

Claims (16)

A door lock device for locking / unlocking a door by driving a lock hole built in the door,
A housing including a cover and a coupling plate coupled with the door;
A lever provided on an outer surface of the cover and capable of rotating in a certain range by a push or pull;
A moving member connected to the protruding piece provided on one side of the lever and moving up and down by the movement of the protruding piece, and a pivoting member pivoting in accordance with the movement of the pivoting member, Including, but not limited to,
A rack gear is provided in the up-and-down direction in the flow member, and a turning gear which is engaged with the rack gear is provided in the turning member,
Wherein the pivoting member comprises a cylindrical body rotatably fixed to a circular drive shaft support portion formed on an inner surface of the cover and the pivoting gear provided on an outer periphery of the body,
The rotating gear is composed of semicircular gears,
Wherein the semicircular gear comprises a serrated portion formed on one side of the outer periphery and a round portion formed on the other side of the outer periphery, and a braking piece which abuts against the first partition or the second partition formed symmetrically on the left and right sides of the drive shaft support portion when the tilt member rotates, Wherein the door lock mechanism comprises: The method according to claim 1,
Wherein the lever is provided with a lever pivoting portion for pivoting the lever,
Wherein the lever pivoting portion includes a hollow cylindrical member coupled to the cover and a lever pivot shaft inserted into the cylindrical member and having both ends fixed to the lever and pivoted by the push or pull of the lever, Device. The method according to claim 1,
And a protruded piece insertion hole is formed in a lower portion of the flow member to insert and fix the protruding piece. 4. The method according to any one of claims 1 to 3,
Characterized in that a rectangular pivoting member inlet hole is formed in the upper portion of the flow member so that the pivoting member can be drawn in and the rack gear is formed in any one of the longitudinal inner peripheral surfaces of the pivoting member inlet hole, . delete delete delete delete delete delete delete delete The method according to claim 1,
Wherein when the door is unlocked by the spring of the lever, the pivoting member rotates in a clockwise direction and stops as the braking member abuts against the first partition. The method according to claim 1,
Wherein when the door is unlocked by the pushing of the lever, the pivoting member rotates in a counterclockwise direction and stops as the braking member abuts against the second partition. The method according to claim 1,
Wherein a guide portion is provided on the inner surface of the cover so that the flow member can be smoothly moved up and down. The method according to claim 1,
And a lowering stop piece for preventing the lowering of the flow member at a predetermined position when the flow member is lowered is provided on the lower side of the drive shaft support portion.

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