KR101595853B1 - Door Lock Device Having Clutch Structure - Google Patents

Abstract

The present invention relates to a door lock device having a structure in which a door lock state is released by rotating a door inner knob, the door lock device comprising: a first handle shaft connected to an inner door handle; A second handle shaft connected to the door outer handle and separated from the first handle shaft; A slide member installed on the first handle shaft or the second handle shaft and reciprocating along the handle shaft and selectively connecting the first handle shaft and the second handle shaft; An elastic member for applying a force to move the slide member in one direction; And at least one link for moving the slide member in a direction opposite to the direction of movement by the elastic member in accordance with a motor drive or a key operation by an authentication signal.

Door Locks, Clutches

Description

(Door Lock Device Having Clutch Structure)

The present invention relates to a door lock device having a structure in which a door lock state is released by a rotation operation of a door inner knob so that a resident in a room can quickly exit to the outside in preparation for an emergency evacuation situation such as a fire, And more particularly, to a door lock device having a clutch structure that simplifies a lock setting and unlocking structure of a door lock device.

The door is equipped with a mechanical or electronic door lock to secure the security of the residential space or office space against the intrusion of a third party. In recent years, the latches of the door locks have been operated in conjunction with the inner handle of the doors so that residents can quickly escape to the outside from a crisis such as a fire or other intrusion -panic type) Locks are often used.

BACKGROUND OF THE INVENTION Conventional electronic door locks (including anti-panic locks) are generally of a construction that uses a motor to actuate the latch. That is, a conventional electronic door lock device includes a plurality of gears and a link member that connect a motor and a latch therein, and transmits the rotational force of the motor to a latch through a plurality of gears and a link member, And performs an operation.

However, in the conventional structure as described above, when the latch is caught in the door frame or when the meshing between the gears is inconsistent, the latch by the motor is not smoothly operated, so that it may be difficult to open the door from the outside. For example, if the door is slightly twisted from the door frame due to its own weight, or if the door is impacted to change the position of the latch slightly, if the motor's rotational force is not sufficient to forcibly actuate the latch, .

In addition, the conventional structure requires a plurality of reduction gears and link members in order to convert the rotational force of the motor into a linear reciprocating movement of the latch, thereby complicating the structure of the door lock device and hindering miniaturization of the door lock device .

Recently, anti-panic type locking devices have been widely used as mentioned above. Since the anti-panic type locking device has a structure in which the latch is operated by the rotation of the door inner knob, if the shaft of the door outer knob and the door inner knob can be selectively and tightly coupled according to the authentication signal or key operation, It will be relatively easy to operate the latch.

Accordingly, it is highly desirable to develop a door lock device capable of selectively coupling an inner door handle and an outer door handle shaft according to an authentication signal or a key operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and has an object of providing a clutch structure capable of relatively reducing the use of gears that are prone to malfunctions and performing the operation of the latch relatively easily even when the door is incorrectly installed or the door is somewhat distorted. The door lock device according to claim 1,

According to an aspect of the present invention, there is provided a door lock device having a structure in which a door lock state is released by rotating a door inner knob, the door lock device comprising: a first handle shaft connected to a door inner handle; A second handle shaft connected to the door outer handle and separated from the first handle shaft; A slide member installed on the first handle shaft or the second handle shaft and reciprocating along the handle shaft and selectively connecting the first handle shaft and the second handle shaft; An elastic member for applying a force to move the slide member in one direction; And at least one link for moving the slide member in a direction opposite to the direction of movement by the elastic member in accordance with motor drive or key operation by the authentication signal.

According to a first embodiment of the present invention, in one example of the present invention, it is preferable that the first embodiment of the present invention is combined with one of the handle axles so as to be integrally rotated and accommodates the other end portion of the handle axes and the slide member, Further comprising a housing having a hole communicating with the inside thereof, wherein the housing is slidable with respect to the slide member such that when the slide member is pushed by the link and engages with the other one of the handle axles, .

Still more preferably, in a first embodiment of the present invention, the link further comprises a first link rotatably shaft-connected to the housing and having an end in the shape of a curved surface extended along the periphery of the housing; And a second link rotatably coupled to the housing and selectively pushing the slide member in accordance with a rotation operation of the first link.

According to the second embodiment of the present invention, in the example of the present invention, the first pull shaft and the second pull shaft include a disk-shaped base portion having a plurality of holes formed at the ends facing each other, And a plurality of protrusions provided in the first handle shaft or the second handle shaft so as to be movable in the axial direction and passing through the plurality of holes.

Since the operation of the latch at the door outer side moves according to the rotation of the door outer knob, the latch is projected to a position deviating from the door frame (precisely, the strike) so that even if the latch is difficult to move, So that the latch can be operated.

In addition, since the present invention does not have a gear structure for moving the latch, it is possible to effectively prevent the wear of the gear or the malfunction of the latch due to the incorrect engagement between the gears.

In addition, since the present invention does not use a gear structure having a high manufacturing cost as described above, it is possible to reduce the overall manufacturing cost of the door lock device and improve manufacturing convenience.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In describing the present invention, it is to be understood that the terminology used herein is for the purpose of describing the present invention only and is not intended to limit the technical scope of the present invention. For reference, the door lock device of the present invention relates to an anti-panic mode in which the latch is operated (unlocked operation) when the door inner handle is rotated as described in the related art. Therefore, a description of a configuration for operating the latch by the inner door handle is omitted.

(Embodiment 1)

1 and 2 are front and rear perspective views, respectively, of a main portion of a door lock apparatus having a clutch structure according to a first embodiment of the present invention, FIG. 3 is an assembled perspective view of the door lock apparatus shown in FIG. 1, FIG. 4 is a perspective view showing the engagement between the slide member, the housing and the second handle shaft shown in FIG. 1, FIG. 5 is a sectional view of the door lock device shown in FIG. 3, and FIGS. Sectional view showing the use state of the door lock device.

1, the door lock device 100 of the present invention includes a first handle shaft 10, a second handle shaft 20, a slide member 30, an elastic member 40 (see Fig. 3), a plurality Links 52 and 54, and a housing 60. In this embodiment,

The first handle shaft 10 is a portion that engages with the door inner handle 102 and is rotatably installed in a door (not shown) or the door frame 200. The first handle shaft 10 may have a polygonal cross-section as shown in FIGS. 1 and 2, in order to increase the coupling force with the door inner handle 102.

The second handle shaft 20 is attached to the door outer handle (not shown) and is rotatably installed in the door or door frame 200, like the first handle shaft 10. However, the second handle shaft 20 is separated from the first handle shaft 10 and is independently rotated regardless of the rotation of the first handle shaft 10.

The housing 60 is positioned between the first handle shaft 10 and the second handle shaft 20 and is rotatably mounted on the door or door frame 200. The housing 60 is generally cylindrical in shape with both ends open. More specifically, on the circumferential surface of the housing 60, an open portion 62 is formed so that one end of the second link 54 is inserted inward. A pair of support pieces 64 are formed on both left and right sides of the open portion 62, in which the links 52, 54 are rotatably axially coupled. In this embodiment, the housing 60 is engaged with the first handle shaft 10 by a coupling means such as a bolt. On the other hand, the inside surface of the inside of the housing 60 is provided with concave and convex portions 61 (see Fig. 4) engaged with the concave and convex portions 36 (see Fig. 4) of the slide member 30.

The slide member (30) is a member for transmitting the rotational force of the second handle shaft (20) to the first handle shaft (10). The slide member 30 is installed inside the housing 60 and slidably moves along the axial direction inside the housing 60 by the operation of the links 52 and 54. [ In addition, the slide member 30 of the present embodiment has a receiving space capable of accommodating the end portion of the second handle shaft 20. A concave and a convex portion 36 is formed at an end of the slide member 30 so as to engage with the concavity and convexity 61 of the housing 60 and is formed in the receiving space of the slide member 30 at the end portion of the second handle shaft 20 A protrusion 38 that fits in the groove 21 is formed (see Fig. 4). When the slide member 30 moves to one end of the housing 60 and abuts the housing 60 and the second handle shaft 20, the second handle 20 And the housing 60 together.

The elastic member 40 (see Fig. 3) is provided inside the housing 60 and serves to push the slide member 30 in one direction (the door inner direction in this embodiment). That is, the elastic member 40 pushes the slide member 30 to the opposite side so that the slide member 30 normally does not engage with the second handle shaft 20 and the housing 60 and is not rotated.

The plurality of links 52 and 54 are connected to the direction in which the slide member 30 is pressed by the elastic member 40 by a force (for example, a drive body or a key operation including a motor) It is a pushing member in the opposite direction. In this embodiment, the plurality of links 52, 54 are rotatably mounted on the support pieces 64 of the housing 60. [ The first link 52 of the plurality of links 52 and 54 is installed to rotate at a predetermined angle by an external force (the driving body 70 in the present embodiment), and the second link 54 And is rotated by the first link 52. One end of the first link 52 has a curved shape substantially parallel to the circumferential surface of the housing 60 so that force from the outside can be transmitted even when the housing 60 rotates, 2 link 54 of the first embodiment. And the other end of the second link 54 is positioned inside the housing 60 so as to push the slide member 30 when rotated to the first link 52. [ The links 52 and 54 configured in this way are adapted to receive the slide member 30 from the first handle shaft 20 and the housing 60 when the slide member 30 is in contact with the second handle shaft 20 and the housing 60, Direction.

On the other hand, the drive body 70 is constituted by a mechanism for switching the rotational force of the motor and the motor into a linear reciprocating motion. The driver 70 operates to press one end of the first link 52 when an authentication signal (for example, a correct password input) is inputted or an identical key is input from the authentication unit of the door lock device installed outside the door . For reference, an electrically driven actuator 70 is shown in this embodiment. In the case of a door lock device having both a manual door lock device or both electronic and manual functions, it may be constituted by only a mechanism for pressing one end of the first link 52 by a key operation (rotational operation).

The operation of the door lock apparatus according to the first embodiment of the present invention will now be described with reference to FIGS. 6 and 7. FIG.

7 (a), the first handle shaft 10 and the second handle shaft 20 are separated from each other, and the slide member 30 is connected to the second handle shaft 20 and the housing (not shown) 60 (see Fig. 6 (a)). Therefore, when the user rotates the outer door handle connected to the second handle shaft 20 from outside the door, only the second handle shaft 20 is rotated but the first handle shaft 10 is not rotated. Therefore, It is not possible to actuate the clasp mechanically connected to the shaft 10.

On the other hand, when the authentication signal or the key operation is detected outside the door as shown in FIG. 7 (b), the driving body 70 presses one end of the first link 52. The other end of the second link 54 pushes the slide member 30 to the outside of the door so that the slide member 30 (See Figs. 6 (b) and 6 (c)) simultaneously with the second handle shaft 20 and the housing 60. Fig. As a result, the first handle shaft 10 coupled to the housing 60 and the second handle shaft 20 coupled to the slide member 30 are connected to each other. Therefore, when the second handle shaft 20 rotates, 2 The handle shaft 10 is rotated.

Therefore, when an authentication signal or a key operation is detected outside the door, the second handle shaft 20 can be turned to securely move the latches interlocked with the first handle shaft 10. [

(Second Embodiment)

FIG. 8 is an exploded perspective view of a main part of a door lock apparatus having a clutch structure according to a second embodiment of the present invention, FIG. 9 is an engaging sectional view of the door lock apparatus shown in FIG. 8, Sectional view showing the state of use of the door lock device shown in Fig.

The door lock device according to the second embodiment is configured to include the first handle shaft 10, the second handle shaft 20, the slide member 30, the elastic member 40, and the housing 202, And has a large difference from the first embodiment in the form of the member 30. For reference, the link configuration is omitted in this embodiment.

The first handle shaft 10 and the second handle shaft 20 each have a disk-shaped base portion 12, 22 at one end. A plurality of holes 14, 24 are formed in the base portions 12, 22, respectively. On the other hand, the holes 14, 24 of the bases 12, 22 are formed at positions that face each other.

The slide member 30 is generally in the form of a disk and has a boss 34 extending through the first handle shaft 10 and a boss 32 extending through the holes 14, 24 of the base portions 12, . The slide member 30 is installed on the first handle shaft 10 and can reciprocate along the first handle shaft 10.

The elastic member 40 is installed between the base portion 12 of the first handle shaft 10 and the slide member 30. The elastic member 40 serves to push the slide member 30 inside the door (i.e., in the direction away from the second handle shaft 20).

The upper components 10, 20, 30 and 40 thus constructed are rotatably installed in the door frame 200 via the housing 202 as shown in FIG. 9, and a latch (not shown) And is connected to actuating mechanism members.

The use state of the second embodiment thus configured will be briefly described below.

The slide member 30 in the normal state is not in contact with the second handle shaft 20 and the protrusions 32 are engaged with the holes 14 in the first handle shaft 10 As shown in Fig.

However, as described in the first embodiment, when the slide member 30 is pushed outside the door (rightward as viewed in FIG. 9) by links (not shown) by the actuator 70 or the key operation, The protrusions 32 of the slide member 30 penetrate the holes 24 of the second handle shaft 20 as shown in Fig.

The protrusions 32 of the slide member 30 are simultaneously penetrated through the first handle shaft 10 and the holes 14 and 24 of the second handle shaft 20, The rotational force of the first handle shaft 20 is transmitted to the first handle shaft 10 as it is.

Therefore, in the second embodiment, the first handle shaft 10 and the second handle shaft 20 are connected by a simple mechanism operation as in the first embodiment, so that the latch can be easily operated by the second handle shaft 20 .

The second embodiment connects the first handle shaft 10 and the second handle shaft 20 with a simpler structure than the first embodiment, so that the production cost of the product can be reduced. In addition, the second embodiment merely increases the rotational force transmission size between the handle axes 10, 20 by increasing the number of the protrusions 32 of the slide member 30 and the number of the holes 14, 24 of the handle axes 10, There is an advantage to be improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions And various modifications may be made.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a door lock device according to a first embodiment of the present invention; FIG.

3 is an exploded perspective view of the door lock device shown in FIG. 1,

FIG. 4 is a perspective view showing a coupling relationship between the slide member, the housing, and the second handle shaft shown in FIG. 1,

Fig. 5 is a sectional view of the door lock device shown in Fig. 3,

6 and 7 are sectional views showing the use of the door lock device shown in Fig. 3,

8 is an exploded perspective view of a main portion of a door lock apparatus having a clutch structure according to a second embodiment of the present invention,

FIG. 9 is an engaging sectional view of the door lock device shown in FIG. 8,

10 is a sectional view showing the use state of the door lock device shown in Fig.

Description of the Related Art

100: Door lock device 102: Handle

10: first handle shaft 12: base part

14: hole 20: second handle shaft

21: groove 22: base portion

24: hole

30: slide member 32; spin

36: unevenness 38: projection

40: elastic member 52: first link

54: second link 60: housing

61: concave and convex 62: open part

70:

Claims (4)

A door lock device having a structure in which a door lock state is released by rotating a door inner knob, A first handle shaft connected to the door inner handle; A second handle shaft connected to the door outer handle and separated from the first handle shaft; A slide member installed on the first handle shaft or the second handle shaft and reciprocating along the handle shaft and selectively connecting the first handle shaft and the second handle shaft; An elastic member for applying a force to move the slide member in one direction; And And one or more links for moving the slide member in a direction opposite to the direction of movement by the elastic member in accordance with motor drive or key operation by an authentication signal, Further comprising: a housing coupled to rotate integrally with any one of the handle axles, the housing including a first end of the handle axle and the slide member therein and an open portion communicating therewith, Said housing engaging said slide member such that when said slide member is pushed by said link and engages with the other of said handle axles, said handle axes are integrally rotated, The link comprising a first link rotatably axially coupled to the housing and having an end in the shape of a curved surface that is elongated along the periphery of the housing; And And a second link rotatably coupled to the housing and selectively pushing the slide member in accordance with a rotation operation of the first link. delete delete The method according to claim 1, Wherein the first handle shaft and the second handle shaft include a disk-shaped base portion having a plurality of holes formed at ends thereof facing each other, Wherein the slide member has a plurality of protrusions which are axially movably provided on the first handle shaft or the second handle shaft and penetrate through the plurality of holes.

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