KR20120001047U - Door Lock ratchet bolt direction conversion mechanism - Google Patents

Abstract

The present invention relates to a latch bolt redirection structure of the door lock, which can change the direction of the latch bolt even if the case of the door lock is not disassembled, and the latch bolt and the dead bolt are released simultaneously only when the indoor lever is operated even if the direction of the latch bolt is changed. Since the panic function can be performed, there is an advantage that can be applied to the door opening in any direction.

Description

Door lock ratchet bolt direction conversion mechanism

The present invention relates to a latch bolt redirection structure of the door lock, and relates to a latch bolt redirection structure capable of changing the direction of the latch bolt without removing the case of the door lock.

The general door lock includes a latch bolt that protrudes and retracts toward the side of the door by operating a rotation means such as a lever. The latch bolt is a means for preventing the door from opening automatically, not a means for locking and releasing. In order to solve the instability of the latch bolt only, a mortise lock having a locking structure by the latch bolt and the dead bolt is installed and used by installing a dead bolt that is locked and released by a knob or grip. .

In addition, a digital door lock has been developed and used to release a dead bolt by pressing a key input button on the outside of the door or using a safety key with a semiconductor chip, and pressing a button inside the door by the power of a motor. This digital door lock is convenient because the user can automatically move the dead bolt to the locked position by the power of the motor after the door is closed, even if the user forgets to lock the door. Of course, a digital door lock can also be inserted to unlock the dead bolt.

Even if the user does not have a key, the digital door lock can be unlocked through key input, and the demand is rapidly increasing as the recognition that the door is closed is automatically locked and safe and convenient.

In this case, since the dead bolt is always mechanically engaged with the gear box including the motor, when the dead bolt is forcibly moved using the knob, the force is transmitted to the gear box, which may damage the gear box due to repeated use. In order to force release of the dead bolt, a strong force is required because the motor must be turned to the motor engaged with the dead bolt.

In addition, a digital door lock with a panic function has been developed, which provides convenience by opening the latch bolt and the dead bolt at the same time by operating the inner lever when leaving the room.

However, even in the digital door lock that performs the conventional panic function, when releasing the latch bolt and the dead bolt at the same time, a lot of power is required because the motor that is engaged with the dead bolt must be returned, and moreover, when the door is closed, If the user attempts to open the door by turning the lever when the bolt closes automatically, a reverse force is applied to the dead bolt, which in turn causes a force collision. Therefore, the gear box is likely to malfunction or break.

Of course, in order to prevent this, a technology for controlling the rotation of the motor by determining whether a force is applied from the outside has been developed, but it takes time from the sensing to the operation of the motor according to the determination of the controller, There is a complex disadvantage.

On the other hand, the latch bolt has a direction so that the inclined surface can be closed by the door frame when the door is closed. In other words, when viewed from the inside, the direction of the latch bolt should be changed depending on whether the door is opened and closed in the left or right direction.In the related art, the latch bolt should be changed after dismantling the case, and furthermore, the panic function until the left and right sides are changed. There is a problem that I did not mind.

The present invention has been made to solve the problems of the prior art as described above, it is possible to change the direction of the latch bolt even without disassembling the case, even if the direction of the latch bolt is changed only the latch bolt and dead when operating the indoor lever It is an object to provide a latch bolt redirection structure of a door lock that releases the bolts simultaneously.

The latch bolt redirection structure of the door lock according to the present invention for achieving the above object is a door lock having a panic function to release the latch bolt and the dead bolt at the same time, the latch bolt is rotatably coupled to one side and the stepped on the other side Formed latch shaft; A case in which the latch shaft is located inside and a latch bolt guide is provided to catch the step of the latch shaft; A body front end formed with a polygonal inlet hole through which the latch bolt is inserted and coupled to a side of the case; A latch spring supported by one side of a latch bolt guide of the case to push the latch bolt out of the body front; And a position between the other side of the latch bolt guide of the case and the step of the latch shaft to limit the length of the latch bolt coupled to the latch shaft to protrude out of the body front by being caught by the step. And a latch stopper that rotates by the rotation of the stopper shaft in communication with the latch stopper to release the latch. The latch stopper rotates the stopper shaft outside of the case to allow the latch stopper to be connected to the other side of the latch bolt guide and the latch shaft. When the step is released between the steps to release the latch, the latch spring advances the step of the latch shaft to the other side of the latch bolt guide by an elastic force that pushes the latch bolt, so that the latch bolt is outside the body front. By protruding to the edge of the latch bolt Lee may be released from the restraint of the polygonal entrance hole formed in the body front to rotate the latch bolt.

The stop spring may further include a stop spring that applies an elastic force to the latch stopper to push the latch stopper to the other side of the latch bolt guide. The latch bolt may be released by the rotation of the latch stopper to release the latch bolt. In a protruding state, when the latch bolt is pushed into the body front and a space is provided between the other side of the latch bolt guide and the stepped end of the latch shaft, the latch stopper is driven by the elastic force of the stop spring. The other side of the guide is in close contact with the latch shaft to return to its original position.

According to the present invention, the following effects are obtained.

First, by providing a handle that is interlocked with the outdoor lever and the indoor lever separately, so that the lever plate interlocked with the indoor lever can push the dead bolt to transfer the dead bolt, only release the latch bolt during the operation of the outdoor lever, the operation of the indoor lever The latch bolt and the dead bolt can be released simultaneously.

Second, when implemented as a digital door lock, when the indoor lever is operated, the gear clutch releases the physical coupling, so that it is not necessary to turn the motor of the gear box by the external force of opening the dead bolt by the panic function, so that the power is easy. You can open up to the dead bolt.

Third, when implemented as a digital door lock, when the dead bolt is closed automatically by the power of the motor after the door is closed, when the internal lever is turned to open the door, the mechanical connection structure between the motor and the dead bolt is released. The external force, which is opposed to the rotational force of the motor for forcibly conveying it, is not transmitted to the gear box including the motor, thereby preventing damage to the gear box.

Fourth, since the edge spring can be inserted through the edge spring insertion hole formed in the case, it is easy to position the edge spring over the case and the edge bolt.

Fifth, even if the case is not disassembled, the direction of the latch bolt can be changed, and even if the direction of the latch bolt is changed, the panic function of releasing the latch bolt and the dead bolt at the same time can be performed only when the indoor lever is operated. It can also be applied to open doors.

1 is a perspective view seen from the lower case side to explain the door lock according to an embodiment of the present invention.
FIG. 2 is a view of the lower case removed and viewed to illustrate the interior of the door lock shown in FIG. 1; FIG.
3 is a view of the upper case removed and viewed to illustrate the interior of the door lock shown in FIG.
4 is a view for explaining a first handle, a second handle, a third handle and a lever plate of the door lock shown in FIG.
FIG. 5 is a view of the lower case removed and viewed to illustrate the closed state of the door lock shown in FIG. 1; FIG.
FIG. 6 is a view of the upper case removed and viewed to illustrate the closed state of the door lock shown in FIG. 1; FIG.
Fig. 7 is a perspective view seen from the upper case side to explain the edge bolt installation of the door lock shown in Fig. 1;
8 to 10 are views for explaining the structure of the direction of the latch bolt latch in the door lock according to an embodiment of the present invention.
Figure 11 is a view for explaining the structure of the turning direction of the latch bolt in the door lock according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings, but some components irrelevant to the gist of the present invention will be omitted or compressed, but the omitted configuration is not necessarily a configuration that is not necessary in the present invention. It can be used in combination by those of ordinary skill in the art.

In addition, in the embodiment of the present invention is provided with a gear box 150 including a motor, by rotating the motor by the control unit will be described as an example of a digital door lock that can automatically lock the dead bolt 100 when the door is closed However, the present invention is not necessarily limited to the digital door lock.

1 is a perspective view from the outside to explain the door lock according to an embodiment of the present invention, Figures 2 and 3 is a lower case 20 (outdoor side) to explain the internal configuration of the door lock shown in Figure 1 And the upper case 10 (interior side), respectively.

As shown in Figures 1 to 3, the door lock according to an embodiment of the present invention, the upper case 10 (inside), the lower case 20 (outside), the body front 30, the latch bolt ( (Latch Bolt), Dead Bolt 100 (Dead Bolt), Edge Bolt 160 (Edge Bolt), Latch Shaft 41, Latch Link 50, First Handle 60, Second Handle ( 70, a third handle 80, a lever plate 90, a main lever 110, a gear clutch unit 140, and a gear box 150.

The upper case 10 and the lower case 20 protect each component of the door lock and are mounted to the door. In addition, the outer case of the lower case 20 (outside) is provided with an outdoor lever that can be opened by the user operating the latch bolt 40 outdoors, and a key input unit or a card contact unit for releasing the dead bolt 100 is provided. It may be mounted. In addition, an interior lever is provided outside the upper case 10 (inside) to allow the user to move and open the latch bolt 40 in a room, and a knob for releasing the dead bolt 100 or A button may be provided.

The body front 30 is formed at the sides of the upper case 10 and the lower case 20, that is, the door frame side, and the latch bolt 40, the dead bolt 100, and the edge bolt 160 can enter and exit. An entrance hole is formed.

The latch bolt 40 is provided to prevent the door from opening on its own, and when the door is closed in the open state, the protruding portion has a tapered shape when the door is closed while the door is closed.

The latch bolt 40 is also adapted to the rotation of the first handle 60 or the second handle 70 by the latch shaft 41, the latch post 43, and the latch link 50 coupled to the latch bolt 40. It can be opened in conjunction, and can be closed by the elasticity of the latch spring 44 when the external force disappears.

The dead bolt 100 can move in the interior of the space consisting of the upper case 10 and the lower case 20, through which the dead bolt 100 is inserted into the door frame to lock the door, or from the door frame The door may be pulled out to release the door. That is, by forcibly rotating the knob to operate the main lever 110 associated with the knob to advance (close) or reverse (open) the dead bolt 100, or the power generated on the motor side of the gear box 150 is gear clutch The dead bolt 100 may be transferred by operating the unit 140 and the main lever 110. In addition, the dead bolt 100 may be transported by pushing the main shaft 111 provided in the main lever 110, the lever plate 90 is rotated at regular intervals in conjunction with the indoor lever.

The edge bolt 160 is provided to sense the closed state of the door. When the door is opened or closed, the edge bolt 160 may be caught by the door frame and may protrude again by the edge spring 161.

The first handle 60, the second handle 70, the third handle 80, and the lever plate 90 may be coupled to the same rotation shaft to rotate in conjunction with an indoor lever or an outdoor lever. The coupling structure of the first handle 60, the second handle 70, the third handle 80 and the lever plate 90 will be described in detail with reference to FIG.

As shown in FIG. 4, polygonal coupling holes a 62 and coupling holes c 81 are formed in the first handle 60 and the third handle 80, respectively. The handle 70 has a polygonal coupling hole b 72 to which the outdoor lever is coupled. In the present exemplary embodiment, the rectangular coupling holes a 62, the coupling holes b 72, and the coupling holes c 81 are formed.

In addition, the second handle 70 is provided with a protruding rotation guide 73 protruding upward and downward of the second handle 70 along the circumference of the coupling hole b 72. The first handle 60 and A seating rotation guide 64 is formed at the third handle 80 so that the protruding rotation guide 73 of the second handle 70 can be seated and rotated. Therefore, when the second handle 70 to which the outdoor lever is coupled rotates, the protruding rotation guide 73 of the second handle 70 is the seating rotation guide 64 of the first handle 60 and the third handle 80. ) And rotation of the second handle 70 does not affect the first handle 60 and the third handle 80.

Meanwhile, the first handle 60, the third handle 80, and the lever plate 90 are coupled to each other so as to rotate together when one rotates. That is, the seating groove 63 is formed at one point around the first handle 60, and the seating groove 63 of the first handle 60 passes through the circumference of the second handle 70 at the third handle 80. An extension portion 82 seated on is formed. In addition, the lever plate 90 is formed with one or more seating holes 91 which are seated and coupled to one or more protrusions 83 protruding above the third handle 80. In addition, the lever plate 90 and the third handle 80 may be coupled by bolt coupling. Accordingly, when the indoor lever coupled to the first handle 60 or the third handle 80 rotates, the first handle 60, the third handle 80, and the lever plate 90 rotate together to rotate. 2 does not affect the handle 70.

Of course, the minimum rotation radius of the coupling hole a 62 and the coupling hole c 81 is the maximum rotation of the outdoor lever so that the first handle 60 and the third handle 80 are not affected by the rotation of the outdoor lever. It is preferred to be larger than the radius.

In addition, protruding around the first handle 60 and the second handle 70, the locking jaw a 61 and the locking jaw b 71 is formed, the first handle 60 or the second handle 70 The locking jaw a (61) or the locking jaw b (71) rotates the latch link (50) to rotate the latch link (50) at a certain angle.

Hereinafter, with reference to Figures 2 and 3 will be described for the operation of the door lock according to an embodiment of the present invention.

First, the main lever 110 may be rotated by the rotation of the knob or rotated by receiving power from the motor side to push and pull the dead bolt 100. That is, the T-shaped bar formed in the main lever 110 is seated in the groove of the dead bolt 100 (where the shape of the main lever 110 or the coupling structure of the main lever 110 and the dead bolt 100 can be changed. The main lever 110 is rotated, the T-shaped bar pushes or pulls the dead bolt 100 is the dead bolt 100 is transferred. In addition, a tooth is formed along the circumference of the main lever 110 and is bitten by the gear clutch unit 140 that transmits the power of the motor. When pressing to operate the motor, the power of the motor is transmitted from the gear clutch unit 140, the main lever 110 may be rotated to transfer the dead bolt 100. In addition, after a predetermined time after the door is closed, the dead bolt 100 may be automatically closed. In this case, the main lever 110 receives the power of the motor from the gear clutch unit 140. The door may be locked by rotating the dead bolt 100.

On the other hand, when the user operates the outdoor lever, the second handle 70 is rotated, the latching jaw b 71 of the second handle 70 pushes the latch link 50, the latch link 50 is a latch link shaft The latch post 43 provided on the latch shaft 41 is pulled while rotating the shaft 51 at a predetermined angle, and the latch bolt 40 coupled with the latch shaft 41 is introduced into the body front 30. At this time, the first handle 60, the second handle 70 and the lever plate 90 does not rotate, so the dead bolt 100 is not opened. On the other hand, when the force applied from the outside disappears, the latch link 50 is returned to its original position by the latch link spring 52, the latch bolt 40 is a contracted latch spring (hanging on the latch bolt guide 45 ( Protruding again by the elastic force of 44).

On the other hand, when operating the indoor lever coupled to the first handle 60 or the third handle 80, the second handle 70 does not rotate, the first handle 60, the third handle 80 and the lever The plate 90 rotates at the same time. Accordingly, the latching jaw a 61 of the first handle 60 pushes the latch link 50 to pull the latch post 43 so that the latch bolt 40 is retracted, and at the same time, the latching portion of the lever plate 90 92 pushes the main shaft 111 provided on the main lever 110 to transfer the dead bolt 100.

Herein, the coupling hole to which the indoor lever is coupled is formed in both the first handle 60 and the third handle 80 for the case where the direction of the latch bolt 40, which will be described later, is changed, thereby changing indoor and outdoor. The indoor lever may be coupled to the third handle 80 on the upper case 10 side, but may be coupled to the first handle 60 on the lower case 20 side when the direction of the latch bolt 40 is changed. have. However, in any case, since the first handle 60 and the third handle 80 can rotate in conjunction with the lever plate 90, the panic function can be implemented.

By operating the indoor lever as described above, the latch bolt 40 and the dead bolt 100 are opened by the panic function.

On the other hand, the door lock according to an embodiment of the present invention, performs a digital door lock function that can lock the dead bolt 100 by using the rotational force of the motor, and when the panic function is performed to the outside of operating the indoor lever In order to prevent the force from being transmitted to the gear box 150 including the motor, it is possible to release the physical coupling of the gear box 150 and the main lever 110 during operation of the indoor lever. That is, when the gear clutch 140 which transmits the power from the motor to the main lever 110, the power transmission can be interrupted when the latch link 50 rotates, thereby opening the dead bolt 100 (that is, When the main lever 110 is opened), an external force is not transmitted to the gear box 150.

Referring to the gear clutch unit 140, the gear clutch unit 140 includes a first gear clutch and a second gear clutch that can transmit power to each other, the power received from the motor main lever 110 To deliver or block. In addition, the gear clutch 140 is connected to or released from the first gear clutch and the second gear clutch by a lever spring 130 whose position is changed by the operation of the latch link 50 and the clutch link 120. .

Such a gear clutch unit 140 includes a first gear clutch, a second gear clutch and a clutch spring.

The first gear clutch may be connected to the gear box 150 to rotate by receiving power of a motor included in the gear box 150.

The second gear clutch may receive power through a power transmission member (hereinafter referred to as a clutch link 120 post) of the first gear clutch, and may rotate on the same axis of rotation as the first gear clutch. The dead bolt 100 may be transferred by rotating the main lever 110 which is bitten by the two gear clutch. In addition, the second gear clutch is formed with a guide groove having a predetermined arc length on which the post of the clutch link 120 of the first gear clutch rotates on the side facing the first gear clutch. The engaging jaw is formed at the meeting point to catch the clutch link 120 post of the first gear clutch to transmit rotational force. Here, the clutch link 120 posts of the first gear clutch are preferably formed with two or more symmetrical rotation shafts, and correspondingly, the guide grooves of the second gear clutch are preferably two or more symmetrical rotation shafts.

The clutch spring is provided to provide an elastic force in a direction pushing the first gear clutch and the second gear clutch to each other between the first gear clutch and the second gear clutch. The clutch spring is preferably positioned to surround the clutch post serving as a rotating shaft inside the post of the clutch link 120 of the first gear clutch.

Meanwhile, a jaw is formed on one side of the second gear clutch, that is, on the opposite side to the side where the guide groove is formed, and the second gear clutch is interlocked with the first gear clutch by pushing or relaxing the jaw according to the position of the lever spring 130. can do. That is, when the lever spring 130 pushes the jaw of the second gear clutch, the clutch link 120 post of the first gear clutch is seated in the guide groove of the second gear clutch, and the first gear clutch receives the power of the motor. When rotating, the clutch link 120 post pushes the locking jaw of the second gear clutch to rotate to transmit power, and when the lever spring 130 moves out of the jaw of the second gear clutch, the clutch spring 120 The distance between the second gear clutch and the first gear clutch is increased by the elastic force, so that the post of the clutch link 120 of the first gear clutch is separated from the guide groove of the second gear clutch, so that the first gear clutch and the second gear clutch are mutually separated. Can block physical power transmission. Of course, instead of forming the jaw in the second gear clutch, even if formed in a tapered shape to be inclined from the center to the circumference, the vertical movement of the second gear clutch according to the position of the lever spring 130 is possible.

Therefore, when the indoor lever or the outdoor lever is turned, the first handle 60 or the second handle rotates to transmit the force to the latch link 50, and the latch link 50 is fixed by the latch link shaft 51 as the rotation axis. Make an angular rotation. At this time, the latch link 50 may push the latch post 43 to reverse the latch bolt 40. Meanwhile, when the latch link 50 rotates at an angle, the clutch link 120 is pushed, thereby pushing the lever spring 130 while the clutch link 120 is pushed to move the position.

That is, when the position of the lever spring 130 is out of the jaw formed in the second gear clutch of the gear clutch unit 140 by the clutch link 120, the second gear clutch is the first gear by the elastic force of the clutch spring. It is released from engagement with the clutch and power transmission to each other is interrupted.

Accordingly, as the first handle 60 or the third handle 80 associated with the indoor lever rotates, the latch link 50 rotates, and the latch link 50 pushes the latch post 43 to latch the bolt 40. ), When the latch link 50 rotates at a predetermined angle, the clutch link 120 pushes the lever spring 130 and pushes the jaw formed on the second gear clutch of the gear clutch 140 to the first. The gear clutch and the second gear clutch are physically disconnected. Therefore, when releasing the dead bolt 100, the external force is not transmitted to the gear box 150 including the motor associated with the gear clutch unit 140, and must also rotate to the motor of the gear box 150. Since the user does not need the force, the user can release the dead bolt 100 with a light force.

Here, when the lever plate 90 pushes the main shaft 111 of the main lever 110 during the panic operation, the locking step of the second gear clutch is caused by the reverse force of the main lever 110. The clutch link 120 post pushes the clutch link 120 post of the first gear clutch out of the guide groove of the second gear clutch because of the predetermined frictional force even if the lever spring 130 is disengaged from the jaws of the second gear clutch. For this purpose, the dead bolt 100 may be locked (when previously locked), and then the power of the motor may be reversed for a short time (a few ms) to allow the clutch of the first gear clutch to be released. Preferably, the link 120 posts are spaced apart from the engaging jaw of the second gear clutch.

In addition, since the external force necessary for forcibly releasing the dead bolt 100 is not transmitted to the gear box 150, it is possible to prevent wear and malfunction of the component due to repeated external force.

On the other hand, the door lock according to an embodiment of the present invention, by controlling the motor by determining whether the key operation input through the key input unit provided on the outdoor side is pressed by the authenticated user, or the card contacted with the card contact is authenticated Control the motor by determining whether it is a card, or control the motor to release the dead bolt 100 when the button is pressed indoors, or lock the dead bolt 100 automatically after a predetermined time after the door is closed. The control unit may further include a control unit.

That is, when a predetermined time after the door is closed by the control unit, the motor is operated by the control unit and the dead bolt 100 is transferred. At this point, when the user rotates the indoor lever, the latch link 50 rotates by a certain angle. The clutch link 120 pushes the lever spring 130 to release the engagement of the first gear clutch and the second gear clutch of the gear clutch unit 140. Therefore, the power of the motor of the gear box 150 is not transmitted to the dead bolt 100 via the gear clutch unit 140 and the main lever 110, and the lever plate 90 is also connected to the main lever 110. Even if the main lever 110 is rotated in reverse while pushing the main shaft 111 to transfer the dead bolt 100, the force may be prevented from being transmitted to the gear box 150 via the gear clutch unit 140. Therefore, it is possible to prevent the gear box 150 from being damaged by collision with external forces opposite to the rotational force of the motor.

On the other hand, when the force applied from the outside in the state of Figs. 5 and 6 is lost, the latch bolt 40 is protruded again by the elastic force of the latch spring 44, the latch link 50 is also applied to the elastic force of the latch link spring 52 While rotating, the first handle 60 is pushed back to its original position. On the other hand, while the clutch link 120 pushes the lever spring 130, the lever spring 130 is also returned by the elastic force, while pushing the jaw formed in the second gear clutch of the gear clutch unit 140, Accordingly, the first gear clutch and the second gear clutch are coupled to each other to transmit power. After a predetermined time passes, the motor rotates by the control unit, and power is transmitted to the dead bolt 100 through the gear clutch unit 140 and the main lever 110 to protrude the dead bolt 100 to lock the door. have.

On the other hand, the edge bolt 160 provided to check the closed state of the door to give a signal to the control unit, both sides of the inclined surface protruding from the body front 30 is pushed close to the door frame, the elastic force of the edge spring 161 It is projected again by, one side of the edge spring 161 over the upper case 10 and the other side over the edge spring 161 so that when the edge spring 161 is retracted (edge spring over the upper case 10 ( When the 161 contracts to have elastic force and the door is completely closed or opened, the edge bolt 160 protrudes again by the elastic force of the edge spring 161.

The edge spring 161 of the edge bolt 160 should be positioned so that both sides of the edge bolt 160 and the upper case 10, respectively, after placing the edge bolt 160 and the edge spring 161 first When manufacturing the door lock by closing the upper case 10, there was a difficult problem to position the edge spring 161 so as to span the upper case 10.

Therefore, the door lock according to the embodiment of the present invention, as shown in Figure 7, the edge spring insertion groove 11 is formed at one point of the upper case 10. Therefore, after the edge bolt 160 is positioned in the upper case 10 and the lower case 20 and the edge spring 161 is compressed and inserted into the edge spring insertion groove 11 of the upper case 10, the edge bolt ( The edge spring 161 is seated in the spring seating groove of the 160, and one side of the edge spring 161 hangs on the support jaw 12 formed inside the edge spring insertion groove 11 of the upper case 10. The other side of the 161 is pushing the edge bolt 160. Therefore, there is an advantage in that an operation for positioning the one side of the edge spring 161 to the upper case 10 is easy.

On the other hand, the door is installed in the door frame of the doorway is left or right hinged to the door frame is opened and closed, in which case the inclined surface of the latch bolt 40 should be located in reverse. For this purpose, conventionally, a door lock equipped with a latch bolt 40 in a different direction was required, and a structure in which an indoor lever and an outdoor lever were connected also had to be different.

However, in the door lock according to the embodiment of the present invention can change the direction of the latch bolt 40 even if the case is not dismantled, as described above, since the indoor lever or the outdoor lever can be coupled at both sides of the case, The doors can be used in any direction.

8 to 11 to describe the direction change process by the direction of the structure of the latch bolt latch lock according to an embodiment of the present invention. For reference, since FIGS. 8 to 11 are for explaining the direction change of the latch bolt 40, the other components of the door lock are deleted and shown.

Referring first to FIG. 11, the latch shaft 41 is inserted into the side of the latch bolt 40 inserted into the body front 30, and the latch shaft 41 is latch bolt 40 by the spring pin 42. Is rotatably coupled to the latch shaft 41. Referring back to FIG. 8, the latch stopper 47 hangs on the stepped portion formed in the latch shaft 41 to support the latch shaft 41 not to be in close contact with the latch bolt guide 45. Therefore, even if the latch spring 44 is supported by the latch bolt guide 45 to pull out the latch bolt 40 with elastic force, the stepped portion provided with the latch post 43 of the latch shaft 41 is provided with the latch stopper 47. As it is hanging, it can no longer move forward and is not completely in contact with the latch bolt guide 45.

If the stopper shaft 46 (see FIG. 7) exposed to the upper case 10 is rotated by a driver or the like to change the direction of the latch bolt 40, the latch stopper 47 associated with the stopper shaft 46 is rotated. 9 rotates as shown in FIG. 9 to deviate between the stepped portion of the latch shaft 41 and the latch bolt guide 45. At this time, the latch shaft 41 has the stepped portion provided with the latch post 43 by the elastic force of the latch spring 44 is in close contact with the latch bolt guide 45, the latch bolt 40 is also pulled in the body front (30) It will protrude completely from the ball. Therefore, the edge of the polygon of the latch bolt 40 exits the inlet hole of the polygon formed in the body front 30 is in a rotatable state. In this state, as shown in Fig. 10, when the latch bolt 40 is held and rotated, the direction is switched by the latch bolt 40 rotating with the latch shaft 41 as the rotation axis. Then, the latch bolt 40 is pushed back to the body front 30 side, and if the space is provided between the latch bolt guide 45 and the stepped end of the latch shaft 41, the latch stopper 47 and the stopper shaft 46 It rotates by the elastic force of the stop spring 48, and returns to the position which the latch stopper 47 closely contacts with the latch bolt guide 45 passing through the stepped part of the latch shaft 41 again. That is, the latch stopper 47 is repositioned between the stepped portion of the latch shaft 41 and the latch bolt guide 45 so that the stepped portion of the latch shaft 41 is caught by the latch stopper 47 again. Therefore, even if the force pushing the latch bolt 40 is removed, the latch bolt 40 is not completely protruded because the stepped portion provided with the latch post 43 of the latch shaft 41 is caught by the latch stopper 47. It will remain switched.

On the other hand, if the direction of the latch bolt 40 is switched to change the indoor and outdoor directions of the door lock, the indoor lever and the outdoor lever should also be changed in the opposite direction of the case to be combined. Therefore, before the latch bolt 40 is changed, the indoor lever is engaged with the first handle 60, and the outdoor lever passes through the lever plate 90 and the third handle 80 to the second handle 70. If engaged, after the direction of the latch bolt 40 is reversed, the indoor lever penetrates through the lever plate 90 to the third handle 80, and the outdoor lever penetrates through the first handle 60. 2 may be coupled to the handle 70. However, in both cases, the indoor lever rotates the first handle 60, the third handle 80 and the lever plate 90, and the outdoor lever can rotate only the second handle 70, so the indoor lever The panic function according to the operation of may be performed without error.

Preferred embodiments of the present invention described above are for the purpose of illustration, and those skilled in the art having ordinary knowledge of the present invention will be capable of various modifications, changes and additions within the spirit and scope of the present invention, such modifications, changes And addition should be seen as belonging to the utility model registration claim of the present invention.

10: upper case 11: edge spring insertion groove
12: support jaw 20: lower case
30: body front 40: latch bolt
41: latch shaft 42: spring pin
43: latch post 44: latch spring
45: latch bolt guide 46: stopper shaft
47: latch stopper 48: stop spring
50: latch link 51: latch link shaft
52: latch link spring 60: first handle
61: engaging jaw a 62: (indoor lever) coupling hole a
63: seating groove 64: seating rotation guide
70: second handle 71: locking jaw b
72: (outdoor lever) coupling hole b
73: protrusion rotation guide
80: third handle 81: (indoor lever) coupling hole c
82: extension 83: protrusion
90: lever plate 91: mounting hole
92: locking portion 100: dead bolt
110: main lever 111: main shaft
120: clutch link 130: lever spring
140: gear clutch portion 150: gear box
160: edge bolt 161: edge spring

Claims (2)

In the latch bolt redirection structure of the door lock,
A latch shaft rotatably coupled to one side of the latch bolt and having a stepped portion formed on the other side thereof;
A case in which the latch shaft is located inside and a latch bolt guide is provided to catch the step of the latch shaft;
A body front end formed with a polygonal inlet hole through which the latch bolt is inserted and coupled to a side of the case;
A latch spring supported by one side of a latch bolt guide of the case to push the latch bolt out of the body front; And
Located between the other side of the latch bolt guide of the case and the step of the latch shaft and the step is caught to limit the length of the latch bolt coupled to the latch shaft protrudes out of the body front, the communication with the outside of the case And a latch stopper rotating by the rotation of the stopper shaft to release the latch of the stepper.
The latch spring releases the latch stopper between the other side of the latch bolt guide and the step of the latch shaft by releasing the latch by rotating the stopper shaft outside the case, and the latch spring pushes the latch bolt. By the step of the latch shaft is advanced to the other side of the latch bolt guide and the latch bolt protrudes out of the body front, the edge of the latch bolt is released from the restraint of the polygonal inlet hole formed in the body front The latch bolt redirection structure of the door lock, characterized in that the latch bolt can rotate. The method of claim 1,
And a stop spring for applying an elastic force to the latch stopper to push the latch stopper to the other side of the latch bolt guide.
When the latch stop of the latch shaft is released by the rotation of the latch stopper, and the latch bolt is protruded, the latch bolt is pushed into the body front to between the other side of the latch bolt guide and the step of the latch shaft. When the space is provided, the latch stopper of the door lock latch bolt turning structure is in contact with the other side of the latch bolt guide by the elastic force of the stop spring to the original position so as to catch the step of the latch shaft again.

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