KR20170027554A - Door locking device - Google Patents

Abstract

The present invention relates to a door lock device. The door lock device according to an embodiment of the present invention is a locking means which is installed on a door to open and close the door and prevents the door from being opened. The door lock device according to an embodiment of the present invention includes a door lock assembly divided into an inner door lock assembly and an outer door lock assembly, and a latch bolt provided between the inner door lock assembly and the outer door lock assembly. The latch bolt is operated by pulling or pushing a handle according to an opening direction of the door. The door lock assembly (1) includes a push and pull switch means for selectively setting a rotation direction of a switching rotation member (13), to switch the handle (11) for operating the latch bolt (2). According to the present invention, the door lock device can be accurately installed according to an opening method.

Description

Door locking device

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door lock device, which is installed in a door to open and close a door and to prevent opening of the door.

Specifically, the door can be opened or closed by pushing or pulling the knob, but the shape of the knob to operate the latch bolt according to the opening direction of the door and the change in the formula according to the left- To the door lock device.

Further, the present invention relates to a door lock apparatus having a simple latch bolt.

Generally, a door (door) is provided at an entrance to control the entrance and exit of a person, and a door lock is provided to the door so that it can be used for opening and closing.

Such a door lock generally comprises a cover provided on both sides of a door, a handle provided on the cover, and a latch bolt provided between the cover and operated by a handle.

The conventional door lock has a structure in which the latch bolt is moved in the longitudinal direction by rotating the handle. When the door is opened, the door is opened by rotating the handle about the horizontal axis (X axis) So that various types of door locks are provided.

According to such a situation, door locks provided with a handle made of 'a' 'shape are provided as in Patent Documents 10-0315217 and 10-0294624.

The conventional door lock having the 'A' shape has such a structure that the latch bolt is moved in the length (horizontal) direction by rotating the 'A' shaped handle around the horizontal axis (X axis).

In the case of the door lock, which is a structure in which the latch bolt is moved in the longitudinal direction by rotating the 'A' shaped handle about the horizontal axis (X axis) as described above, the handle of the ' To rotate about the horizontal axis (X axis). However, when a force is applied from the upper part to the lower part of the 'A' shaped handle to open and close the door in this way, a load is generated in the inside, and due to the rapid wear and return of the elastic member, Is loosened, the 'A' shaped handle is deflected downward, which causes a deterioration of aesthetics.

In addition, since the force is applied from the upper part to the lower part (i.e., the vertical direction) in order to rotate the 'A' shaped handle in order to open and close the door as described above, the door lock is easily broken, It is inconvenienced to apply the force from the top to the bottom in order to rotate the handle of the 'A' shape and to open the door by pulling or pushing back to the front and back

In order to solve such a problem, Japanese Patent Registration No. 10-1059753 provides a pull-type door lock having a structure in which the latch bolt is moved in the length (horizontal) direction when the handle is pulled in the horizontal direction.

However, in the case of the pull-type door lock of the above-mentioned Japanese Patent No. 10-1059753, the door is configured to operate in a pulled manner on both the inside and the outside of the door, so that either the inside or the outside pulls in a direction opposite to the opening direction of the door .

In order to solve such a problem, Japanese Patent Registration No. 10-1375776 discloses a push-and-pull opening type door lock which allows one handle to be operated in a pulled manner while the other handle is operated in a push-pull manner Respectively.

In the case of a door lock (door lock device) of the conventional push-pull opening type, the manner of pushing or pulling the door lock varies depending on the environment (opening direction, door lock installation position, etc.) of the door.

 That is, the door lock can be divided into a left-hand equation and a superior door depending on the position of the door, and the door may be opened in the inner direction or in the outer direction. In the case of the door lock of the conventional push-and-pull opening type according to such various environments, the handle can not be switched to the PUSH or PULL mode and thus can not cope properly.

Referring to Figure 1,

Depending on the environment in which the door is installed, the door may be opened outward as shown in Fig. 1 (a), and the door may be opened inward as shown in Fig. 1 (b). In this case, FIGS. 1 (a) and 1 (b) show that the PUSH and PULL handles are positioned opposite to each other according to the opening direction of the door.

In the case of the door lock of the conventional push-and-pull opening type, since the shape of the handle can not be switched to the PUSH or PULL mode or the switching is very complicated, the user can not switch the handle, (PULL) type handle is installed in the place where the door is to be installed, or when the handle for PUSH and the pull type door are arranged so as to match the opening manner of the door, the door lock is installed There arises a problem that the fixing screw for positioning is located on the outer side.

(KR) Patent Registration No. 10-0315217 (Registration date November 8, 2001) (KR) Patent Registration No. 10-0294624 (registered date April 18, 2001) (KR) Patent Registration No. 10-1059753 (registered date August 22, 2011) (KR) Patent Registration No. 10-1375776 (registered on March 12, 2014)

The present invention has been made to solve the conventional problems,

(PUSH) and pull (PULL) which can be installed with a handle of an accurate pushing (PUSH) or pulling (pull) method according to the opening direction of a door even in various environments where a door lock device is installed. ) Type door lock device.

That is, the door lock assembly constituting the door lock device includes push and fill switching means capable of pushing (pushing) or pulling (pulling) the handle, To be able to do so.

Further, it is an object of the present invention to simplify the structure of the latch bolt constituting the door lock apparatus and to enable accurate operation.

To achieve the above object, the door lock apparatus of the present invention comprises a door lock assembly divided into an inner door lock assembly and an outer door lock assembly, and a latch bolt provided between the inner door lock assembly and the outer door lock assembly, The door lock device according to any one of claims 1 to 3, wherein the door lock assembly is provided with a knob for operating the latch bolt, And a push and loop switching means configured to selectively set the rotation direction of the switching rotary shaft rotated around the Y axis.

Wherein said push and pull switching means comprises a switching pin including a switching pin for switching to a PULL or PUSH type through which a through hole is formed in a fixed body fixed to a door, A plate for use; A switching rotary member connected to the through hole of the switching plate so as to rotate together with a connection shaft connected to the latch bolt and configured to be rotated by a switching pin; The fixing body is provided with a fixing pin. The fixing body is rotated about the fixing pin. The inner end of the rotary shaft is connected to the switching rotary shaft so as to rotate the rotary shaft. The outer end of the rotary shaft is connected to the handle.

According to another aspect of the present invention, there is provided a door lock apparatus including a door lock assembly divided into an inner door lock assembly and an outer door lock assembly, and a door lock device including a latch bolt provided between the inner door lock assembly and the outer door lock assembly. Wherein the latch bolt is retracted when the connection shaft connected to the door lock assembly rotates and receives a resilient force so that the latch bolt always moves in a direction in which the latch is installed to be returned; A latch mounting portion provided in front of the slider so as to rotate about an X axis which is a moving direction; And a latch which is installed in the latch mounting hole and rotates about a latch mounting pin perpendicular to the X axis which is a movement direction, and a latch is provided between the latch mounting hole and the latch so as not to rotate the latch about the latch installation pin Wherein the latch fixing means is configured such that when the latch mounting means moves backward when the slider is retracted, the latching means is released from the fixed state so that the latch can rotate around the latching mounting pin .

According to the door lock apparatus of the present invention, the door lock assembly is provided with the push and pull switching means, so that the shape of the handle which changes according to the opening direction of the door and the installation direction of the door lock device can be easily switched Accordingly, there is an advantage that an accurate door lock device according to the opening method can be installed in a place where the installation can not be performed due to a problem or a precise opening method due to a problem in the past.

Further, since the configuration of the latch bolt is rigid and accurate operation can be realized, the reliability of the door lock apparatus can be ensured.

Further, the door lock device including the door lock assembly and the latch bolt provided with the push and loop switching means has a simple structure and is easy to install, which is advantageous in cost competitiveness and reliability.

1 is a schematic view showing a state in which a push and a grass change according to an opening direction of a door provided with a push and pull door lock device.
2 is a perspective view of a door lock apparatus according to an embodiment of the present invention;
3 is a perspective view of the door lock apparatus in a separated state in an embodiment of the present invention.
4 is a partial perspective view of a door lock assembly of a door lock apparatus according to an embodiment of the present invention.
FIG. 5 is a perspective view of a push and pull switching means provided in a door lock assembly of a door lock apparatus according to an embodiment of the present invention; FIG.
FIG. 6 is a perspective view of a switching method using a push and pull switching means provided in a door lock assembly of a door lock apparatus according to an embodiment of the present invention; FIG.
7 is a perspective view of a latch bolt of a door lock apparatus according to an embodiment of the present invention.
8 is a perspective view schematically showing the interior of a latch bolt of a door lock apparatus according to an embodiment of the present invention.
9 is a perspective view of a strap in a state in which the latch housing is removed from the structure of the latch bolt according to the embodiment of the present invention.
10 is a partial perspective view of an important part of the configuration of a latch bolt according to an embodiment of the present invention.
11 is a schematic plan view of the structure of the latch bolt according to the embodiment of the present invention, with the latch housing removed.
12 is a front schematic view showing a state in which the latch housing is removed from the structure of the latch bolt according to the embodiment of the present invention.
Fig. 13 is a schematic illustration of a separation plane for explaining the latch fixing means B of the latch bolt according to the embodiment of the present invention; Fig.
FIG. 14 is a schematic view showing an operating state of the latch bolt, which is an embodiment of the present invention, showing a state in which the latch fixing means B is unlocked in the opening state for explaining the latch fixing means B. FIG.
15 is a schematic view showing an operating state of the latch bolt, which is an embodiment of the present invention, in which the latch fixing means B for fixing the latch fixing means B is fixed;

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

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door lock device and a door lock device, which are installed at one side of a door and enable a door to be easily opened and closed. More specifically, the door is opened by operating the handle in a PUSH or pull- A door lock assembly provided with a push and pull switching means A capable of closing the door by pushing or pulling the door easily, and a fixing means B, And a door lock device having the latch bolts.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a push-pull type door lock device of the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 1,

According to the opening direction of the door D, the handle of the door lock device installed on the door is switched between the PUSH and the PULL mode.

In the conventional door lock apparatus of the push and pull type, when the push and pull systems of the handle are changed from each other, a screw (bolt) used for fixing is often inserted outside the inside, So that it becomes impossible to use it. In order to solve this problem, the present invention is provided with a push and pull switching means (A) in a door lock assembly.

Referring to Figures 2 and 3,

The door lock device includes a door lock assembly 1 divided into an outdoor door lock assembly 1a and an indoor door lock assembly 1b with a door as the center and a door lock assembly 1 between the outdoor door lock assembly 1a and the indoor door lock assembly 1b And a latch bolt 2 provided in the door.

The outer door lock assembly 1a and the inner door lock assembly 1b constituting the door lock assembly 1 have the same structure except that the inner door lock assembly 1b is provided with a screw hole into which a screw for fixing is inserted And a threaded portion is formed on the outdoor door lock assembly 1a at the corresponding portion, and the screw is inserted and fixed at the door lock assembly 1b side. This is not described further in the conventional fixed method.

The door lock assembly 1 including the outdoor door lock assembly 1a and the indoor door lock assembly 1b is provided with a push and pull switch means A (1) capable of switching between the PUSH and pull modes of the handle 11, ).

3 to 5,

The door lock assembly 1 includes an outer fixing body 10 positioned on the outside with a door therebetween, an inner fixing body 10 'positioned on the inner side, and an inner fixing body 10' formed on the fixing body 10 and 10 ' A handle 12 installed through the through hole and provided with a fixing pin 19 and rotating around the fixing pin 19 and a handle 11 installed at one end of the handle 12, A telephone rotary tool 13 connected to the other side of the knob connector 12 provided with the knob 11 and rotated about the Z axis when the knob connector 12 is rotated, , A switching plate (14) provided with a switching pin (15) so as to be able to control the rotating direction of the telephone dialing tool (13) while being fixed to the dialing dial (13) , The telephone rotary shaft 13 is provided with a spring return spring 16 provided so as to have an elastic force for returning .

The outer fixing body 10 and the inner fixing body 10 'are screwed in from the side of the inner fixing body 10' with the door interposed therebetween. The inner fixing body 10 ' Holes and pinholes are formed in the inner fixing body 10 'so as to be fixed by the fixing pins 19 after the handle fittings 12 are installed on one side of the handle 11, And is similar to the fixing body provided in the door lock of the push-and-pull opening type which is a conventional KR-10-1375776.

The handle 11 is fixed to one side of the handle coupling 12 which is installed on the fixing body 10 or 10 'so as to rotate about the fixing pin 19 and is pushed or pulled, .

The pull tab 12 has a configuration in which the pull tab 13 is rotated forward or backward around the fixing pin 19 in accordance with a push or pull, A pinhole 12-1 through which the fixing pin 19 passes and a rotation which is formed on the other side where the handle 11 is provided and which is inserted into the groove 13-3 for the handle coupling 13 of the telephone dial 13 And a fixing hole 12-3 for fixing the handle 11 to the other side of the connecting projection 12-2 for the rotary member.

It is also possible that the connecting shaft 3 is inserted into the inner side thereof.

The telephone rotary tool 13 is inserted into the through hole 14-1 formed in the switching plate 14 fixed to the fixing bodies 10 and 10 ' And a rotation restricting member for restricting the rotation direction of the handle by a predetermined distance from the through hole and having one end thereof penetrated through the through hole and fixed by a snap ring, A switching projection 13-2 provided so that the rotation direction can be set (limited) by the switching pin 15 when the rotary shaft 13-1 is rotated about the rotation axis 13-1; , A knob connector groove (13-3) formed with a connecting protrusion (12-2) for the rotary connector of the knob connector (12) so as to be able to rotate forward or reverse, And a through hole 13-4 for a connecting shaft through which the connecting shaft 3 formed in the connecting portion C penetrates.

The through-hole 13-4 for the connection axis is usually formed in the same polygonal hole as the connection axis 3 so that the connection axis 3 can be rotated during rotation.

The switching plate 14 restricts the rotation direction of the telephone rotary tool 13 by using the switching pin 15 so as to set the rotation direction of the telephone rotary tool 13 and presses the push- (PUSH) or a pull (PULL) method.

The switching plate 14 is fixed to the fixing bodies 10 and 10 'with a fixing screw 18 and a through hole 14-1 is formed at the center thereof to insert the rotation short axis 13-1 A first switching pinhole 14-2 and a second switching pinhole 14-3 for setting (restricting) the rotation direction of the telephone rotary tool 13 around the through hole 14-1, .

The switching projection 13-2 of the telephone rotary tool 13 is positioned between the first switching pinhole 14-2 and the second switching pinhole 14-3.

The switching pin 15 is provided at any one of the first switching pinhole 14-2 and the second switching pinhole 14-3 to set (limit) the rotational direction of the switching rotary shaft 13, And is constituted by a first switching pin 15a and a second switching pin 15b which are usually provided in the first switching pinhole 14-2 and the second switching pinhole 14-3 And one of them is removed to set (restrict) the rotation direction of the switching rotary tool 13.

However, by using one switching pin 15, it is possible to install the switching pin 15 at any one of the first switching pinhole 14-2 and the second switching pinhole 14-3, (Limited).

Fig. 5 is a schematic perspective view showing an embodiment for showing the configuration of the push and pull switching means A, Fig. 6 shows an embodiment showing the use state of the push and pull switching means A, The pull 11 is set in the pull type.

7 shows a state in which the handle 11 is switched to the pull system and the push system in accordance with the configuration of the push and pull switching means A, (PUSH) mode by the switching pin 15 when the knob 11 is switched to the pulling mode by the switching pin 15 as shown in FIG.

Referring to Figures 8-11,

The latch bolt 2 provided in the door and positioned between the door lock assembly 1 constituted by the outdoor door lock assembly 1a and the indoor door lock assembly 1b is formed in a cylinder shape, An operation cam 21 rotating together with a connection shaft 3 connected to the door lock assembly 1 so as to be rotatable at both ends of the latch housing 20; A slider 22 which is installed inside the operating cam 21 and receives an elastic force in a direction in which the latch 25 is always installed so as to be retracted and returned when the operating cam 21 rotates; A locking member 23 for locking and releasing the rotation of the operating cam 21 in the Z-axis direction and provided with a locking projection 23-2 for insertion and removal of the slider 22, And is arranged to rotate about the X axis which is the forward movement direction A latch 25 mounted on the latch mounting hole 24 and rotating around a latch mounting pin 26 orthogonal to the X axis in the moving direction; And a slider return spring 27 provided between the latch mounting hole 24 and the slider 22 to return to the home position when the slider 22 is retracted.

A latch fixing means B is formed between the latch mounting hole 24 and the latch 25 so as to prevent the latch 25 from rotating about the latch mounting pin 26. The latch fixing means B, When the slider 22 is moved backward, the fixed state is released when the latch mounting hole 24 moves backward so that the latch 25 can rotate around the latch mounting pin 26.

The latch housing 20 is formed in the shape of a cylinder so that the slider 22 installed on the inner side can slide in the X-axis direction and protects other components. In the Z- A hole for a locking member is formed so as to be able to support the support shaft 21-1 formed at both ends of the door 25 so as to rotate, Is fixed to the door (D).

The operating cam 21 is installed through the connecting shaft 3 and rotates when the connecting shaft 3 rotates so that the slider 22 is moved backward in the direction opposite to the position of the latch 25. The latch housing 20 A cam plate 21-2 is formed on one side of the cam plate 21-2 so as to rotate about the support shaft 21-1 and the cam plate 21-2 21-2 are formed with locking grooves 21-3 for preventing rotation by insertion of the locking protrusion 23-2 of the locking member 23. [

The slider 22 is configured such that the slider 22 is retracted in a direction opposite to the position of the latch 25 when the operation cam 21 rotates and returned to its original position by the elastic force of the return spring 27, An operating cam opening 22-1 having a long length in the moving direction for allowing the end of the cam plate 21-2 of the operating cam 21 to be inserted into the operating cam 21 can be moved backward when the operating cam 21 is rotated And a latch mounting hole 24 is provided forward.

A fixing screw hole is formed in front of the slider 22 and the latch mounting hole 24 can be rotated about the X axis which is the moving direction by providing the latch mounting hole 24 using a screw and a washer.

The locking member 23 is fixed in the X-axis direction and moves in the Z-axis direction so that the locking protrusion 23-2 is inserted into or removed from the locking groove 21-3, A guide shaft 23-1 formed so as to pass through a hole formed in the latch housing 20 and a locking projection 23-2 inserted into the locking groove 21-3, .

The locking member 23 is normally moved in the Z-axis direction by a locking bar provided on the inner door lock assembly 1b. The locking member 23 is moved in the Z-axis direction by the rod inserted through the hole formed in the outer door lock assembly 1a. .

The latch mounting hole 24 has a structure in which the slider 22 and the latch 25 are connected to each other so that the latch 25 is rotated around the latch mounting pin 26 installed in the Y- A latch mounting body 24-1 provided on the front surface of the slider 22 and rotating about the X axis and a latch mounting body 24-1 formed on the opposite side of the latch mounting body 24-1 on which the slider 22 is provided, A latch connecting portion 24-2 provided with a long hole long pinhole 24-3 in the axial direction and a latch mounting pin 26 provided in the pinhole 24-3 for latch connection And a fixing projection surface 24-4 for fixing the rotation of the latch 25 rotating around the center.

The latch 25 is attached to the latch connecting portion 24-2 by the latch mounting pin 26 and rotates about the latch mounting pin 26 and contacts the fixing projection surface 24-4 (25-2) and a jumping face (25-3) facing each other at an arbitrary angle, and the opening preventing surface (25-2) And the fixing recessed surface 25-4 is engaged with the fixing projection surface 24-4 of the latch mounting hole 24 that advances together with the slider 22 to be returned to the side opposite to the swinging surface 25-3 (25-5) for allowing the latch (25) to rotate so as to come into contact with the end portion of the fixing projection surface (24-4) so that the fixing groove (25-4) Is formed at one end of the arc 25-5.

In addition, the upper and lower surfaces of the latch 25 are formed with an end for engaging with a hole formed in a fixing plate for fixing to the door D so as to set a protruding limit.

The latch mounting hole 24 and the latch 25 connected in this manner are inserted into the latch connection pin hole 24 (or 24) in the X-axis direction by the latch mounting pin 26 moving from the latch connection pin hole 24-3 The latching surface 25-4 is moved by the length of the latching surface 24-2 and the locking projecting surface 24-4 and the fixing yawing surface 25-4 are brought into contact with each other so that the latching surface 25- 2 are parallel to the X axis. When the latching mounting pin 26 is positioned at the front end of the latching pinhole 24-3, the fixing protruding surface 25-2 and the fixing yaw- The contact of the latch 25-4 is disengaged and the latch 25 rotates about the latch installation pin 26. [

Fig. 14 is a schematic exploded view of the latch attachment 24 and the latch 25 for explaining the latch fixing means B, and Fig. 15 shows an operation state of the latch fixing means B.

15A shows a state in which the slider 22 receives an elastic force in the direction of the latch 25 by the return spring 27 so that the fixing projection surface 25-2 formed in the latch mounting hole 24 and the latch 25 Is in contact with and fixed to the fixing groove 25-4,

15 (b) shows a state in which the slider 22 and the latch attachment 24 are moved backward when the slider 22 is retracted by the rotation of the operation cam 21, but the length of the pinhole 24-3 The contact state between the fixing projection surface 25-2 and the fixing recessed surface 25-4 is released and the latch 25 is rotated about the latch mounting pin 26. [

The latch 25 is rotated as shown in (c) of FIG. 15, so that the door can be opened.

16 shows a state in which the fixing projection surface 25-2 and the fixing yaw groove surface 25-4 come into contact again when the slider 22 is subjected to the elastic force in the direction of the latch 25 by the return spring 27 And is in a fixed state.

When the slider 22 receives an elastic force in the direction of the latch 25 by the return spring 27, the end of the fixing projection 25-2 comes into contact with the return call 25-5, 25 are rotated so that the fixing projection surface 25-2 and the fixing yaw groove surface 25-4 are engaged with each other.

At this time, when the latching mounting pin 26 and the fixing projection surface 25-2 are not positioned on the same line, the end portion of the projection surface 25-2 and the returning call 25-5, (25) can be rotated.

1, 1a, 1b: Door lock assembly 2: Latch bolt
3: Connection axis
10, 10 ': fixing body 11: handle
12: Handle connector 13: Telephone swivel
14: switching plate 15: switching pin
19: Fixing pin
20: latch housing 21: operating cam
22: slider 23: locking member
24: latch mounting hole 25: latch
26: Latch mounting pin 27: Slider return spring
A: Push and loop switching means B: Latch fixing means

Claims (8)

A door lock assembly divided into an inner door lock assembly and an outer door lock assembly; and a latch bolt provided between the inner door lock assembly and the outer door lock assembly. The latch bolt is operated by pulling or pushing the handle according to the opening direction of the door The door lock device according to claim 1,
The door lock assembly 1 is provided with a knob 11 for operating the latch bolt 2 so as to be rotated around the Y axis by means of the knob 11 so as to be switched to a pulling- And a push-and-loop switching means (A) configured to selectively set a rotating direction of the rotary member (13) for use. The apparatus according to claim 1, wherein said push and pull switching means (A)
And a switching pin (15) fixed to the fixing body (10, 10 ') fixed to the door, a through hole (14-1) formed at the center thereof, A switching plate (14);
Is connected to the through hole (14-1) of the switching plate (14) so as to rotate together with the connecting shaft (3) connected to the latch bolt (2) so that the turning direction is set by the switching pin A switching rotary member 13;
A fixing pin 19 is provided on the fixing body 10 or 10 'so as to rotate around the fixing pin 19 and an inner end portion of the fixing body 10 or 10' Is connected to the switching rotary member (13), and the outer end thereof is connected to the handle (11). 3. The method of claim 2,
The switching pin 15 is provided at any one of the first switching pinhole 14-2 and the second switching pinhole 14-3 formed around the through hole 14-1, And sets the rotation direction of the sphere (13). [5] The apparatus according to claim 2 or 3, wherein the switching rotary member (13)
A rotation short axis 13-1 which can be fixed to the through hole 14-1 of the switching plate 14 by a snap ring 17;
A switching projection (13-2) provided so that the rotation direction can be set by the switching pin (15) when rotating about the rotation axis (13-1);
And a knob connector groove (13-3) connected to the knob connector (12) for forward rotation or reverse rotation,
And a through hole (13-4) for a connecting shaft through which the connecting shaft (3) passes is formed at the center (C). A door lock apparatus comprising a door lock assembly divided into an inner door lock assembly and an outer door lock assembly, and a latch bolt provided between the inner door lock assembly and the outer door lock assembly,
The latch bolt (2)
A slider 22 having a resilient force in a direction in which the latch 24 is always installed to be retracted and returned when the connection shaft 3 connected to the door lock assembly 1 is rotated;
A latch mounting hole (24) provided in front of the slider (22) so as to rotate about an X axis as a moving direction;
And a latch (25) provided on the latch mounting hole (24) and rotating about a latch mounting pin (26) orthogonal to the X axis in the movement direction,
A latch fixing means B is provided between the latch mounting hole 24 and the latch 25 to prevent the latch 35 from rotating about the latch mounting pin 26. The latch fixing means B, When the slider 22 moves backward, when the latch attachment 24 moves backward, the fixed state is released so that the latch 25 can rotate around the latch attachment pin 26 Door lock device. A door lock apparatus comprising a door lock assembly divided into an inner door lock assembly and an outer door lock assembly, and a latch bolt provided between the inner door lock assembly and the outer door lock assembly,
The latch bolt (2)
An operating cam 21 which is rotatably installed at both ends of the latch housing 20 and rotates together with a connecting shaft 3 connected to the door lock assembly 1;
A slider 22 installed inside the latch housing 20 to receive an elastic force in a direction in which the latch 25 is always installed so as to be retracted when the operation cam 21 rotates and to be returned;
A locking protrusion 23-2 inserted into or removed from the locking groove 21-3 formed in the operation cam 21 is provided and moves in the Z axis direction to lock and unlock the rotation of the operation cam 21. [ A locking member (23) for locking the locking member (23);
A latch mounting hole (24) provided in front of the slider (22) so as to rotate about an X axis as a moving direction;
A latch 25 installed on the latch mounting hole 24 and rotating about a latch mounting pin 26 orthogonal to the X axis in the moving direction;
And a slider return spring (27) provided between the lock member (23) and the latch mount (24) for returning the slider (22) back to its original position when retracted,
A latch fixing means B is formed between the latch mounting hole 24 and the latch 25 so as to prevent the latch 25 from rotating about the latch mounting pin 26. The latch fixing means B, When the slider 22 moves backward, when the latch attachment 24 moves backward, the fixed state is released so that the latch 25 can rotate around the latch attachment pin 26 Door lock device. The method according to claim 5 or 6,
The latch mounting hole 24 includes a latch mounting body 24-1 mounted on the front surface of the slider 22 and rotating about the X axis; And a latch connecting portion 24-2 having a long hole long pinhole 24-3 formed in the X-axis direction on the side opposite to the side where the slider 22 is provided in the latch mounting body 24-1, )Wow; A fixing projection surface 24-4 for fixing the rotation of the latch 25 rotating about the latch installation pin 26 provided on the latch connection pinhole 24-3 is provided,
The latch 25 is attached to the latch connecting portion 24-2 by the latch mounting pin 26 and rotates about the latch mounting pin 26 and contacts the fixing projection surface 24-4 And has a locking recessed surface 25-4 and a locking surface 25-2 and a locking surface 25-3 facing each other at an arbitrary angle,
The latch 25 is moved by the length of the latching pinhole 24-3 in the X axis direction by the latching pin 26 moving from the latching pinhole 24-3 of the elongated hole, The face 24-4 and the fixing yaw groove 25-4 come in contact with each other so that the opening preventing surface 25-2 when the latch 25 is fixed is parallel to the X axis and the latch connecting pinhole 24 3), when the latching mounting pin 26 is positioned at the front end of the latch 25, the contact between the fixing protruding surface 25-2 and the fixing recessed surface 25-4 is separated, And is configured to rotate about the latch mounting pin (26). 8. The method of claim 7,
The latch 25 is provided with a slider 22 to be returned to the opposite side of the opening prevention surface 25-2 and the slidable surface 25-3 so that the latch projection 25 of the latch 25, 4) is brought into contact with the end portion of the fixing projection surface (24-4) so that the latching groove surface (25-4) is engaged with the latching surface (25-4) , And the fixing groove (25-4) is formed at one end of the return call (25-5).

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