JP2009228310A - Lock device for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock device for door of a vending machine or the like capable of unlocking the door in emergency, being operated by remote control, and enhancing the crime prevention performance. <P>SOLUTION: In this lock device for door, latches 5, 5 arranged in a shaft part 31 of a handle 3 are engaged with engaging recessed parts 14, respectively, to restrain protrusion of the handle 3. The slider 8 is moved, protruding parts 5b, 5b of the latches 5, 5 are moved into recessed parts 8b, 8b to release engagement, and the handle 3 is protruded by a spring 4 to unlock the door. A cam mechanism 7 is provided at a position being adjacent to the slider 8. A lever 72 is arranged between a cam 71 of a cam mechanism 7 and the slider 8. The cam 71 is turned by a motor unit 6, and the lever 72 is moved to push and move the slider 8. A plate 9 having rigidity is arranged in a cover 15 covering the cam mechanism 7, and a part of the plate 9 is exposed through an opening 15a. A pin 75 of the cam 71 is engaged with a cutout section 9a of the plate 9. A lever of a cylinder lock is engaged with an engaging hole 9b in an end part of the plate 9. The plate 9 is pushed to move the pin 75, and the slider 8 is moved by the lever 72 to unlock the door in emergency. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a door locking device that regulates the opening and closing of a door of a vending machine, for example, and can be unlocked and operated remotely.

  As this type of door locking device, for example, door electric locks disclosed in Japanese Patent Application Laid-Open No. 2000-320207 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2001-32589 (Patent Document 2) are known.

  In Patent Document 1, a wire or the like is attached to the projection of the emergency cam for emergency unlocking of the electric lock for the door, and mechanical emergency unlocking is possible with this wire until the installation of the vending machine. I am doing so.

Further, in Patent Document 2, one end of a wire is attached to a projection of an emergency cam for emergency unlocking, the other end of the wire is attached to a cylinder lock, and the door electric lock is unlocked by this cylinder lock. Like that. The projection of the emergency cam is covered with a protective cover.
JP 2000-320207 A JP 2001-32589 A

  Since the conventional door electric lock can be electrically unlocked from the outside by remote operation, it has a certain degree of security. However, in the thing of patent document 1, since the protrusion of the emergency cam protrudes from the back side of the electric lock, there is a possibility that the protrusion is manipulated while the hole is opened in the door and the back side of the electric lock is searched to be illegally unlocked. is there.

  Moreover, in the thing of patent document 2, although the protrusion of an emergency cam is covered with the protective cover, since the operation of emergency unlocking is performed through a flexible wire, a part of this wire is used. There is a risk of being unlocked illegally by pulling.

  An object of the present invention is to further improve crime prevention in a door locking device that can be unlocked and operated remotely.

  The door locking device according to claim 1 is connected to a case in which a handle insertion hole having an engaging recess is formed, and a door locking mechanism on the back side of the case and is rotatably inserted into the handle insertion hole. A rotating bush having a latching opening formed at a position facing the engaging recess, and being slidably inserted in the axial direction of the rotating bush, and latch inserted in a direction perpendicular to the axial direction. A handle having a shaft portion in which a hole and a slider insertion hole are formed, and is interposed between the pivot bush and the shaft portion in the axial direction, and urges the handle to protrude from the case surface. And a spring biased to move the latch insertion hole and the latch opening to engage with or disengage from the engaging recess, and at the time of engaging with the engaging recess, the front of the handle A latch that prevents protrusion from the surface of the case; a slider that is inserted into the slider insertion hole so as to be in contact with the latch and can be engaged or disengaged with respect to the engaging recess; and adjacent to the slider Provided with a cam mechanism for moving the slider so that the latch can be detached from the engagement recess, and a locking / unlocking motor for rotating the cam of the cam mechanism, and the cam is rotated by the locking / unlocking motor. In the door locking device that allows the handle to protrude by moving the slider and releasing the latch from the engaging recess, an emergency unlocking pin for moving the slider is provided, A cover that covers the cam mechanism is provided, and a rigid plate that is movably inserted through a slit formed in the cover is configured to push the pin. Other is characterized in that so as to move the slider by pulling.

  The door locking device according to claim 2 is the door locking device according to claim 1, wherein a notch portion is formed in a portion of the cover of the plate, and the pin is brought into contact with the notch portion. In this state, the pin is pushed by moving the plate in the cover.

  According to the door locking device of the first aspect, when the pin for emergency unlocking is pushed or pulled, the slider moves, the latch disengages from the engaging recess, and the handle is pulled out to perform the emergency unlocking. Although this cam mechanism is covered with a cover, the plate pushes or pulls the pin within this cover, and the plate has rigidity, so this plate is moved by, for example, an emergency unlocking cylinder lock It cannot be unlocked unless it is moved in the direction. Therefore, crime prevention is enhanced.

  According to the door lock device of the second aspect, since the pin is pushed by the notch portion of the plate, the pin is brought into contact with the notch portion simply by inserting the plate from the slit of the cover. be able to. Therefore, since the plate can be set with the cover assembled, the assembly of the lock device is more prepared than when the pin is pulled and pulled.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1-6 is a figure which shows the structure of the door locking device of embodiment of this invention, FIG. 1 is a partially fragmented top view and longitudinal cross-sectional view and figure which show the locking state of the door locking device of embodiment. 2 is a horizontal sectional view of the same locking state, FIG. 3 is a view showing a cam mechanism of the door locking device, FIG. 4 is a view showing a rotating state of the cam, and FIG. 5 is an unlocking state of the door locking device. FIG. 6 is a partially fragmented plan view and a longitudinal sectional view showing a state in which the handle is pressed in the unlocked state, and FIG. 7 is a horizontal sectional view and a longitudinal sectional view showing a pop-up state of the handle. FIG.

  The door locking device includes a metal case 1, a rotating bush 2 provided in the case 1, a handle 3 fitted in the rotating bush 2, and the handle 3 facing the surface of the case 1. The “locking / unlocking motor” comprising a spring 4 that biases and a pair of latches 5 and 5 (see FIGS. 1 (A) and 2) for restricting the protrusion of the handle 3, and a motor equipped with a speed reducer. As a motor unit 6, a cam mechanism portion 7 described later, and a slider 8 driven by the cam mechanism portion 7. The door locking device is attached to the surface of the door of the vending machine.

  A shallow lever storage recess 11 extending in the longitudinal direction is formed on the surface of the case 1, and a deep handle insertion hole 12 is formed on one side of the lever storage recess 11. A motor chamber 13 is formed on the back side of the case 1 on the opposite side of the handle insertion hole 12.

  The handle insertion hole 12 is formed with engagement recesses 14 and 14 (see FIGS. 1A and 2) in which the pair of latches 5 and 5 are engaged. As shown in FIG. 2, the engagement recesses 14, 14 are notched from the back surface of the case 1 toward the front surface, and the notch range is engaged with the pair of latches 5, 5 at the retracted position of the handle 3. It is adjusted to match. Further, the width of the engaging recess 14 is slightly wider than the width of the latch 5 as shown in FIG.

  The rotating bush 2 is formed in a substantially cylindrical cup shape, and latch openings 21 and 21 (see FIG. 1 (A)) are formed at two positions 180 ° apart from each other. A slider opening 22 (see FIG. 1 (A)) is formed at a position 90 ° apart from 21 and 21. The latch openings 21 and 21 are formed to face the engaging recesses 14 and 14, and the slider opening 22 is notched to the position of the lever storage recess 11 at a position rotated by 90 ° with respect to the latch opening 21. It is formed (see FIG. 2). In addition, a stopper portion 23 (see FIG. 2) for the pair of latches 5 and 5 is attached in the opening on the front side of the rotating bush 2, and an annular step portion with which one end of the spring 4 is engaged with the rear inner wall. 24 is formed (see FIG. 2).

  A locking cam (not shown) is attached to the rear outer surface of the rotating bush 2 by two screws 25, 25, and the rotating bush 2 and the locking cam rotate by manual rotation of the handle 3 of the door electric lock. The door is unlocked by a connecting rod (not shown).

  The handle 3 includes a shaft portion 31 that is inserted so as to be movable with respect to the axial direction of the rotating bush 2, and a lever portion 32 that extends in a direction orthogonal to the front end portion of the shaft portion 31. In a state in which the handle 3 is retracted by moving toward the rear end of the rotating bush 2, the lever portion 32 is stored in the lever storage recess 11.

  Latch insertion holes 31a and 31a (see FIGS. 1 (A) and 2) facing the engaging recesses 14 and 14 (see FIGS. 2 and 3) when the handle 3 is retracted are disposed at the rear end of the shaft portion 31. A slider insertion hole 31b facing the slider opening 22 is formed. Further, an annular recess 31c (see FIG. 2) with which the other end of the spring 4 is engaged is formed at the rear end portion of the shaft portion 31. The shaft portion 31 is partially hollow, and a guard cap 32a made of a sufficiently hard metal is fixed to the lever portion 32 at a position corresponding to the hollow portion.

  As shown in FIGS. 2 and 7, the spring 4 disposed between the rotating bush 2 and the handle 3 is a compression-type conical spring, and one end having a long diameter is an annular shape of the rotating bush 2. The other end, which is engaged with the stepped portion 24 (FIG. 2) and has a short diameter, is engaged with the annular recess 31c of the handle 3.

  As shown in FIG. 2, the pair of latches 5 and 5 are inserted into the latch insertion holes 31a and 31a, and the spring bias is applied by engaging the end of the tension spring 51 between the spring shafts 5a and 5a. In the state of being arranged, they are arranged to face each other. Thereby, the latches 5 and 5 are arranged in a state where the protruding portions 5 b and 5 b are in contact with the slider 8. The latches 5 and 5 are slid in the latch insertion hole 32 by the urging force of the tension spring 51, whereby the protrusions 5b and 5b are engaged with the recess 8b of the slider 8 described later.

  The slider 8 is inserted into the slider insertion hole 31 b and is urged by the compression spring 81 toward the cam mechanism portion 7. The slider 8 is formed in a substantially rod shape, and one end of the slider 8 abuts on a lever 72 described later by the urging force of the compression spring 81. In the middle of the slider 8, a relief portion 8a (see FIG. 1B) for the tension spring 51 (see FIG. 2) is formed. In addition, substantially triangular recesses 8 b and 8 b into which the protruding portions 5 a of the latch 5 are engaged are formed in the side surface intermediate portion of the slider 8. The urging force of the compression spring 81 is set to be larger than the urging force of the tension spring 51, and the urging force of the compression spring 81 enables engagement / disengagement with respect to the recesses 8b and 8b of the latches 5 and 5. Yes.

  A motor unit 6 is accommodated in the motor chamber 13, and a cam mechanism portion 7 is disposed adjacent to the motor unit 6. The cam mechanism unit 7 includes a cam 71 fixed to the output shaft 6a of the motor unit 6, a lever 72 disposed between the cam 71 and the slider 8, and a lever that accommodates the cam 71 and the lever 72 therein. And a guide 73. The cam mechanism 7 is covered with a cover 15 (see FIG. 1B). In FIGS. 1A, 4A and 5A, a part of the lever guide 73 and the cover 15 are cut open.

  FIG. 8 is a view showing the lever 72 and the pin 75, and FIG. 8 (A) is a cross-sectional view taken along line AA of FIG. 8 (C). The lever 72 is a resin part having a substantially rectangular shape, and has a cam space 72A in which the cam 71 is disposed. One side of the cam space 72A has a flange 72a, and a portion on the slider 8 side has a pressing portion 72b. Moreover, it has the main-body part 72c united with the collar part 72a and the press part 72b. The inside of the pressing portion 72 b is a contact surface 721 with which the cam 71 contacts, and the opposite side of the contact surface 721 is a pressing surface 722 that contacts the slider 8. A pin hole 723 for fitting the pin 75 shown in FIG. 8 (F) and a long hole 724 for allowing the output shaft 6a of the motor unit 6 to escape are formed in the main body 72c. In addition, a semicylindrical hollow spring receiving portion 725 for disposing the coil spring 74 shown in FIG. 1A is formed at the corner between the flange portion 72a and the main body portion 72c.

  FIG. 9 is a view showing the lever guide 73. The lever guide 73 is formed of a metal plate, has a substantially U-shaped cross section, and has rail portions 73a and 73b that are parallel to each other on both sides, and a top plate 73c that connects the rail portions 73a and 73b. Yes. The lever 72 is arranged so as to be surrounded by the rail portions 73a and 73b and the top plate 73c. One rail portion 73 a is in sliding contact with the flange portion 72 a of the lever 72, and the other rail portion 73 b is in sliding contact with the side surface of the main body portion 72 c of the lever 72. A cam escape portion 73d for avoiding interference with the cam 71 is formed at the end of the other rail portion 73b on the motor unit 6 side.

  The top plate 73c is formed with a long hole 731 for allowing the pin 75 fitted in the pin hole 723 of the lever 72 to escape, and a shaft hole 732 into which the output shaft 6a of the motor unit 6 is inserted. Yes. An opening 733 that matches the spring receiving portion 725 of the lever 72 is formed on the rail portion 73a side of the top plate 73c, and a spring bent toward the spring receiving portion 725 is formed at one end of the opening 733. A contact portion 734 is formed. A coil spring 74 is disposed from the opening 733 in a state where the lever 72 is disposed in the lever guide 73. One end of the coil spring 74 contacts the inner end surface of the spring receiving portion 725 of the lever 72, and the other end contacts the spring contact portion 734 of the lever guide 73. As a result, the lever 72 is biased in a direction away from the slider 8.

  As shown in FIG. 3, the cam 71 has a cam surface 71 a that is decentered from the shaft about the output shaft 6 a of the motor unit 6. When the cam 71 rotates as shown by the arrow A in the figure, the cam surface 71a pushes the contact surface 721 of the lever 72, moves the lever 72 to the slider 8 side, and in cooperation with this, the slider 8 moves to the arrow. Move in the direction of A ′. FIG. 4 is a diagram showing the operation according to the rotation angle of the cam 71. FIGS. 4A to 4F show the states of 0 °, 15 °, 45 °, 60 °, 75 ° and 90 °, respectively. Show. On the other hand, when the cam 71 rotates from the position of FIG. 4F as indicated by the arrow B in FIG. 3, the lever 72 and the slider 8 are moved in the direction of the arrow B ′ by the urging force of the compression spring 81. The operations in the directions of the arrows A and A ′ are the same when the pin 75 fitted to the lever 72 is moved.

  Since the lever 72 is disposed between the cam 71 and the slider 8 as described above, the maximum radius of the cam 71 can be made smaller than that of the conventional art. That is, the motor unit 6 needs to be large enough to be in the rotational radius direction by the rotor and the coil portion. Further, it is necessary to move the slider 8 within a range that can be accommodated in the rotating bush 2. Therefore, if there is no lever 72 as in the prior art, the cam requires a maximum radius from the output shaft 6 a of the motor unit 6 to the position where the slider 8 is accommodated in the rotating bush 2. However, since the lever 72 is provided as in this embodiment, the maximum radius of the cam 71 can be reduced by the thickness of the pressing portion 72b, and the cam 71 is configured as such. Thereby, the size of the door locking device can be reduced.

  For example, since a conventional locking device that unlocks with a cylinder lock does not require a motor unit or cam, it has a small size. Although there is a problem that the lock device provided cannot be applied in terms of size, the door lock device of the embodiment can be reduced in size, so that this existing metal fitting or the like can be used as it is.

  As shown in FIG. 1, the cam mechanism 7 is provided with a vertically long plate 9. The plate 9 is made of hard metal, and a notch 9a is formed on the end on the cam mechanism 7 side, and an engagement hole 9b is formed on the other end. As shown in FIG. 1 (B), the plate 9 is inserted from the opening (slit) 15a of the cover 15, and as shown in FIG. 1 (A), the pin 75 of the cam 71 is inserted into the notch 9a. It is arranged to be engaged. This state can be realized even after the cover 15 is attached. Then, by pushing the plate 9 into the cover 15, the pin 75 engaged with the notch 9a moves, and the slider 8 moves as in FIG.

  With the above configuration, the door locking device of the embodiment operates as follows. The motor unit 6 electrically unlocks the door locking device by operating a motor by a control unit (not shown). Further, the control unit activates the motor by receiving a predetermined unlocking code (or administrator code) from an IC card or the like by an antenna unit provided in the vending machine, for example. Furthermore, the control unit has a timer or the like, and a control program is incorporated that returns to the original state after a predetermined time has elapsed after unlocking. In addition, by controlling to return to the original state, even if, for example, the unlocking card is held up and unlocked by mistake after locking, the locked state is entered. Thereby, the anti-theft property can be improved.

  The drive of the motor unit 6 causes the slider 8 to move from the state of FIG. 1 due to the action of the cam mechanism 7, and the recesses 8b and 8b of the slider 8 are latched 5 (protrusion 5a) as shown in FIG. It becomes the position. Here, since the urging force of the spring 4 is indirectly applied to the latches 5 and 5, as shown in FIG. 2, the latches 5 and 5 are pressed against the engaging recesses 14 and 14, respectively. A frictional force acts between the engaging recesses 14 and 14. Therefore, the latches 5 and 5 are in the position shown in FIG. When the predetermined time elapses in this state by a timer or the like, the state returns to the state of FIG.

  Next, when the handle 3 is pushed in from this state, the latches 5 and 5 and the engaging recesses 14 and 14 are in a non-contact state in the direction in which the biasing force of the spring 4 acts, and the biasing force of the spring 4 is applied to the latches 5 and 5. Is no longer applied. Accordingly, the latches 5 and 5 are attracted to each other by the tension spring 51 and separated from the engaging recesses 14 and 14, and the protrusions 5 b and 5 b of the latches 5 and 5 are formed in the recesses 8 b and 8 b of the slider 8 as shown in FIG. Since it enters, the latch 5 is disengaged from the engaging recess 14. As a result, as shown in FIG. 7, the handle 3 protrudes from the surface of the case 1, and the handle 3 (and the rotating bush 2) can be rotated to unlock the door. When the door is closed and locked, the cam 71, the lever 72 and the slider 8 have already returned to the initial positions after a predetermined time has elapsed, so that the locking is completed only by immersing the handle 3.

  Next, the case of emergency unlocking will be described. FIG. 10 is a view showing a state where the door locking device of the embodiment is connected to the emergency unlocking cylinder lock 10, FIG. 10 (A) is a front view, and FIG. 10 (B) is a side view. The cylinder lock 10 is attached to, for example, a door of a vending machine, and an engagement arm 10b that engages with an engagement hole 9b of the plate 9 is attached to the rotating shaft 10a. At the time of emergency unlocking, the cylinder lock 10 is rotated by a master key or the like. As a result, the rotation shaft 10a of the cylinder lock 10 rotates as shown by the arrow A in the figure, and the plate 9 moves in the direction of the arrow A '. As a result, the lever 72 and the slider 8 are moved in the unlocking direction via the pin 75, and unlocking is possible as described above.

  In this embodiment, even in the case of emergency unlocking, the cam 71 and the lever 72 that are operated by a normal unlocking operation by driving the motor unit 6 are operated, so that, for example, a member that operates periodically is used. The operation at the time of emergency unlocking is also highly reliable. If an emergency unlocking cam or the like is used as in the prior art, emergency unlocking is rarely performed, and this cam or the like may not operate. However, in this embodiment, this is not the case.

  FIG. 11 is a view showing a state in which the door locking device of the embodiment is connected to the emergency unlocking cylinder lock 60, and this example is an example in which the door locking device is attached to a cigarette vending machine. The case 1 is attached to the door of the vending machine by a mounting bracket 20, and the plate 9 is disposed on the back surface of the mounting bracket 20. The end portion of the plate 9 is pivotally attached to a link 30 </ b> A that is pivotally supported on the mounting bracket 20 by a shaft 91. The shaft 91 is on the movement line of the notch 9a and the pin 75 of the plate. The other end of the link 30A is pivotally attached to one end of the link 30B, and the other end of the link 30B is attached to the slider 40.

  The slider 40 is slidably disposed in a cam cylinder 50 of a cylindrical lock, and a pin 40 a of the slider 40 is engaged with a cam groove 50 a of the cam cylinder 50. The cam cylinder 50 is fixed to the shaft of the cylinder lock 60, and this cylinder lock 60 is attached to the left side surface 70 of the article discharge port of the vending machine. An opening 70a is formed in the left side surface 70, and the cylinder lock 60 can be operated from the opening 70a.

  When the cylinder lock 60 is rotated by a master key or the like, the cam cylinder 50 is rotated, and the pin 40a and the slider 40 are moved toward the cylinder lock 60 along the cam groove 50a. As a result, the plate 9 moves to the left in the figure via the links 30B and 30A, the plate 9 pushes the pin 75, and is unlocked in the same manner as described above. In this example, the cylinder lock 60 is provided in the article discharge port, but it may be provided in an inconspicuous place such as in the change discharge port.

  12 and 13 are diagrams showing another embodiment, and the operation and the like of the latch 5, the slider 8 and the like are the same as those in the above embodiment. These door locking devices push the slider 8 by a motor cam (not shown) which is not provided with the lever and is fixed to the motor unit. This door locking device is an emergency cam dedicated for emergency unlocking. 41 and a claw 42 for restricting the movement of the slider 8 due to an impact or the like. Then, by operating the pin 41a of the emergency cam 41, the emergency cam 41 rotates, the claw 42 comes off from the slider 8, and then the slider 8 moves to be unlocked. In each door lock device, plates 91 and 92 are arranged so as to overlap the emergency cams 41 and 41, respectively. Further, the plates 91 and 92 and the pins 41a and 41a are covered with covers 93 and 93 which are illustrated by partially cutting.

  Here, the difference between the two is that in the door locking device of FIG. 12, the emergency cam 41 is rotated in the clockwise direction so that the slider 8 is moved. In the door locking device of FIG. 13, the emergency cam 41 is counterclockwise. It is a point that rotates. Therefore, the plate 91 is formed with a square notch 91a at one end corner of the tip, the plate 92 is formed with a notch 92a from the side of the tip, and the pins 41a and 41a are formed in the notches 91a and 92a. Is engaged. In the case of FIG. 12, emergency unlocking can be performed by pushing the plate 91, and in the case of FIG. 13, emergency unlocking can be performed by pulling the plate 92.

It is the partial crushing top view and longitudinal cross-sectional view which show the locking state of the locking device for doors of embodiment of this invention. It is a horizontal sectional view of the locked state. It is a figure which shows the cam mechanism of the locking device for doors. It is a figure which shows the rotation state of the cam of the locking device for doors. It is the partially crushing top view and longitudinal cross-sectional view which show the unlocking state of the door locking device. It is the partial crushing top view and the longitudinal cross-sectional view of the state which pressed the handle in the unlocked state. It is the horizontal sectional view and longitudinal section which show the pop-up state of the handle of the locking device for doors. It is a figure which shows the lever and pin of the locking device for doors. It is a figure which shows the lever guide of the locking device for doors. It is a figure which shows the state which connected the locking device for doors to the cylinder lock for emergency unlocking. It is a figure which shows the other example of the state which connected the locking device for doors to the cylinder lock for emergency unlocking. It is a figure which shows the locking device for doors of other embodiment which pulled the plate for emergency unlocking. It is a figure which shows the locking device for doors of other embodiment which was made to push the plate for emergency unlocking.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Rotating bush 3 Handle 4 Spring 5 Latch 6 Motor unit 7 Cam mechanism part 8 Slider 9, 91, 92 Plate 14 Engaging recessed part 15 Cover 31 Shaft part 32 Lever part 71 Cam 75 Pin

Claims (2)

A case in which a handle insertion hole having an engaging recess is formed;
A rotation bush connected to a door locking mechanism on the back side of the case and rotatably inserted into the handle insertion hole, and having a latch opening formed at a position facing the engagement recess;
A handle having a shaft portion that is slidably inserted in the axial direction of the rotating bush and in which a latch insertion hole and a slider insertion hole are formed in a direction orthogonal to the axial direction;
A spring interposed between the pivot bush and the shaft portion in the axial direction, and biasing the handle in a direction of projecting from the case surface;
Spring-biased, moved through the latch insertion hole and the latch opening to engage with or disengage from the engaging recess, and prevent the handle from protruding from the case surface when engaged with the engaging recess. A latch to
A slider that can be inserted into the slider insertion hole and in contact with the latch to regulate engagement or disengagement of the latch with respect to the engagement recess;
A cam mechanism provided adjacent to the slider and moving the slider so that the latch can be removed from the engaging recess;
A locking / unlocking motor that rotates the cam of the cam mechanism,
In the door locking device that allows the handle to protrude by rotating the cam by a locking / unlocking motor to move the slider and releasing the latch from the engagement recess,
An emergency unlocking pin for moving the slider is provided, a cover for covering the cam mechanism is provided, and a rigid plate movably inserted through a slit formed in the cover includes the pin A door locking device characterized in that the slider is moved by pushing or pulling.   A notch is formed in a portion of the plate in the cover, and the pin is pushed by moving the plate in the cover in a state where the pin is in contact with the notch. The door locking device according to claim 1.

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