JP2010095970A - Unlocking-locking device for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To conduct an unlocking by two of an electromotive type using a solenoid and a key type by a cylinder lock, to conduct a locking by a manual operation or the key type by the cylinder lock and prevent the locking by the electromotive type, to prevent an automatic locking in case of the unlocking by the electromotive type and to hold a door under a non-locking state in response to use modes. <P>SOLUTION: In an unlocking-locking device for the door, a lock lever 3 forming engaging pawls 3a and 3b can be operated by releasing a locking mechanism holding the closed state of the door 2. In the unlocking-locking device for the door, the unlocking of the door releasing the locking mechanism includes two types of an electromotive type unlocking conducted by operating the solenoid 17 by inputting a password number to a door ten-key and a key type unlocking by operating the cylinder lock 7 by a key. In the unlocking-locking device for the door, the locking of the door conducted by locking the locking mechanism includes two types of a key type locking conducted by operating the cylinder lock by the key and a manual type locking conducted by manually moving the lock lever at the same time. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a door unlocking / locking device such as a key box or a safe. In particular, unlocking can be unlocked in two ways, an electric type using a solenoid and a key type using a cylinder lock, while the locking is not performed electrically.

  For the convenience of the user, about the unlocking and locking of the door of the safe etc., enter the PIN with the numeric keypad such as the numeric keypad and operate the solenoid by operating the solenoid and operate the key and dial There is a combination of both manual and unlocking methods that do not require you to enter your PIN.

  For example, in the one shown in Patent Document 1, an electric mechanism that is driven in response to an unlocking signal of an electronic code lock and unlocking by operating a manual code lock even when the electronic code lock is in a locked state And can be locked. The electric mechanism has a spring for self-restoration by releasing the power supply, and is automatically locked when the power is turned off.

  Moreover, in the thing shown in patent document 2, when the door is closed in a state where the lock mechanism is released by the solenoid, the rotating plate is rotated and locked because the bar connected to the rotating plate hits the frame of the safe body. The release state of the mechanism is released, the lock member automatically returns to the lock position, and the door is automatically locked.

Patent Document 3 relates to a lock device for an entrance door, and includes a mechanical locking / unlocking portion and an electrical locking / unlocking portion that is unlocked by energization and locked by de-energization. And the electrical locking / unlocking part are all not linked.
Japanese Patent Publication No.56-40232 JP-A-8-199873 JP 2008-150866 A

  The ones that can be unlocked / locked by the electric type and the manual type as in the above-mentioned patent documents 1 to 3 are automatically operated when the power is turned off when the solenoid is operated and unlocked by the electric type. It is structured to return to the locked state.

  Even if you forget to lock manually, it is automatically locked, so it may be convenient for safety.On the other hand, in the case of things that are cumbersome, the door is automatically locked every time you close the door. Each time, it must be unlocked, and depending on the mode of use, it may not be desirable to be automatically locked.

  Also, when unlocking with the numeric keypad, it may be convenient to be able to change the password when locking electrically, but it may be inconvenient to use because the password is changed without knowing it. is there. For this purpose, it is desirable that only a specific person can change the password.

  The present invention has been made to solve such problems, and the object of the present invention is to perform unlocking in two ways: an electric type using a solenoid with a numeric keypad input and a key type with a cylinder lock. It is to provide a door unlocking / locking device that is locked manually or with a key by a cylinder lock and not electrically operated.

  In order to achieve the above object, the door unlocking / locking device of the present invention enables the operation of the lock lever formed with the engaging claw by releasing the lock mechanism that holds the door closed. In the door unlocking / locking device, the unlocking of the door performed by releasing the lock mechanism is performed by operating a solenoid by inputting a password to the door numeric keypad, and a cylinder It has two types of key-type unlocking performed by operating the lock with a key, and the locking of the door performed by locking the locking mechanism includes the key-type locking performed by operating a cylinder lock with the key, It is characterized in that it has two types of manual locking that is performed by manually moving the lock mechanism.

  Further, another aspect of the present invention provides a door unlocking / locking device that enables the operation of a lock lever formed with an engaging claw by releasing a lock mechanism that holds the door closed. In order to control the operation of the open lever for moving the lock lever formed with an engaging claw for holding the closed state of the door, a release lever that can be engaged with and disengaged from the open lever is provided. When the solenoid is turned on by connecting the release lever to the movable iron core of the solenoid and inputting a password to the door numeric keypad, the movable iron core is attracted to the solenoid body side from the stop position to the open lever. The release lever is disengaged to allow the open lever to move manually, and in that state the solenoid is turned off. However, the release lever is operated by an open lock lever so that the unlocked state is maintained in an unlocked state, and the open lock lever operates the release lever with respect to the open lever. It is possible to engage and disengage with respect to the release lever for control, and when the release lever is disengaged from the open lever by the open lock lever, the open lock lever is manually moved. Thus, when the solenoid is turned off, the movable iron core is stopped at the standby position by the force of the spring, the open lock lever and the release lever are engaged, and the release lever is engaged with the open lever. A manual locking mechanism that restricts the movement of the open lever; A cylinder lock provided with a key hole on the door surface is provided, and the release lever and the open lock lever are moved by moving the cam of the cylinder lock with a key so that the release lever can be engaged with and disengaged from the open lever. And a key-type unlocking / locking mechanism.

  According to another aspect of the present invention, in addition to the above-described invention, when the engagement of the release lever with respect to the open lever is released by the cylinder lock, a new password can be input.

Unlocking is performed in two ways: electric type using a solenoid with a numeric keypad input and key type using a cylinder lock, and locking is done manually or with a key type using a cylinder lock. When the door is unlocked, the door is not automatically locked, and the door can be held in an unlocked state according to the use state of the user.
In addition, since the password can only be changed when unlocked with a cylinder lock, the password cannot be changed by anyone other than the key holder of the cylinder lock, and the password is changed without the knowledge. There is nothing.

  An embodiment of a door unlocking / locking device of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an example of a key box using the door unlocking / locking device of the present invention. FIG. 2 is a perspective view seen from the back side with the door open. FIG. 3 is an enlarged perspective view of the lock mechanism portion shown in FIG. 2, and shows a state where the lock mechanism is released.

As shown in FIG. 2, the lock plate 4 is formed on the frame on the main body 1 side with lock plate protrusions 4 a that engage with the engaging claws 3 a and 3 b at the tip of the lock lever 3 that holds the door 2 closed. Is provided. Further, as shown in FIGS. 1 and 3, an open lever 6 for moving the lock lever 3 is connected to the surface of the door 2 on the back side of the door 2, and the lock mechanism is unlocked manually. -The key hole of the cylinder lock 7 for locking, the input numeric keypad 8 for inputting the personal identification number and unlocking the lock mechanism, and the open lock lever 9 are connected on the back side of the door 2 and are manually operated. A lock knob 10 is provided for locking the lock mechanism.
The door unlocking / locking device of the present invention is provided on the back side of the door 2 as shown in FIG. Moreover, it is the same as that of the conventional thing that the battery which becomes a power supply, the switchboard for control, etc. are equipped in the appropriate location of the door.

  When the lock mechanism is released, the open knob 6 can be slid downward in FIG. 1, and by moving the lock lever 3, the engaging claws 3a and 3b at the tip of the lock lever 3 and the lock plate convex portion on the main body 1 side are provided. The engagement of 4a is released and the door 2 can be opened. The input numeric keypad 8 includes, for example, a numeric keypad and other function keys necessary for unlocking / locking. When a correct password is inputted, the lock mechanism is released. On the other hand, when the lock mechanism is released by inputting the password, it is not automatically locked unless the lock mechanism is manually locked. In addition, the structure of the surface of a door is not restricted to what was illustrated.

Next, details of the lock mechanism of the door unlocking / locking device of the present invention will be described with reference to FIGS. As described above, this apparatus is provided on the back side of the door so that the door can be unlocked by the input numeric keypad 8 and the cylinder lock 7 on the front side of the door 2, and the door can be locked by the cylinder lock 7 and the lock knob 10. It has become.
FIG. 4 is an explanatory view showing a state in which the lock mechanism of the door unlocking / locking device of the present invention is locked. FIG. 5 is an explanatory view showing a state where the lock mechanism shown in FIG. 4 is released by a solenoid. FIG. 6 is an explanatory view showing a state where the lock mechanism shown in FIG. 4 is released and unlocked by a solenoid. FIG. 7 is an explanatory view showing a state where the lock mechanism of the door unlocking / locking device of the present invention is released by the cylinder lock. FIG. 8 is an explanatory view showing a state where the lock mechanism shown in FIG. 7 is released and unlocked by the cylinder lock. FIG. 9 is an explanatory view showing a state where the lock mechanism shown in FIG. 7 is being locked by the cylinder lock.

  The lock lever 3 having a substantially L-shape has engagement claws 3a and 3b formed at the ends, and the engagement claws 3a and 3b are formed on the lock plate convex portion 4a of the lock plate 4 provided on the frame on the main body 1 side. Engage to hold door 2 closed. As shown in FIG. 4, the lock lever 3 includes a first lock lever 31 disposed on the upper side and a second lock lever 32 disposed on the lower side. The first lock lever 31 is rotatable about the shaft 11 at the corner of the L-shape, and the second lock lever 32 is rotatable about the shaft 12 at the corner of the L-shape. It has become.

  An engaging claw 3 b is formed at one end of the second lock lever 32. The other end extends in the left-right direction in FIG. 4 so as to be located on the opposite side of the engaging claw 3b with the shaft 12 interposed therebetween. This extended portion is in contact with the pushing portion 5a of the open lever 5 described later. An abutting roller 13 in contact therewith is provided. Further, a push portion 3c that abuts against a contact portion 3d of the first lock lever 31 described later is formed on a line connecting the shaft 12 and the shaft 11 of the extension portion of the second lock lever 32.

  An engaging claw 3 a is formed at one end of the first lock lever 31, and an abutting portion 3 d that abuts against the pushing portion 3 c of the second lock lever 32 is formed at the other end. The first lock lever 31 and the second lock lever 32 are attracted to each other by the lock lever spring 14 so as to keep the door closed.

  The substantially rectangular open lever 5 which is connected to the open knob 6 on the front side of the door 2 and whose lower end is bent in FIG. 4 slides downward in the drawing due to the movement of the open knob 6, and by the action of the lock lever spring 14. Return upward. An engagement portion 5b that engages with an engagement step portion 15a of the release lever 15 described later is formed at the bent corner portion of the lower end of the open lever 5. In addition, a push portion 5 a is formed at an intermediate portion of the open lever 5 in an oblique direction with respect to the sliding direction of the open lever 5, and this push portion 5 a is disposed on the second lock lever 32. The contact roller 13 is in contact with the contact roller 13.

  A release lever 15 is disposed at a position opposite to the lock lever 3 across the open lever 5 so as to be rotatable about a shaft 16 as a fulcrum. At the upper end of the release lever 15, an engaging portion 15b that engages with an engaging convex portion 9a of the open lock lever 9 described later is formed. In FIG. 4, the lower part of the engaging part 15b is bent so as to rise, and an abutting part 15c is formed to abut against a cam 7a of a cylinder lock 7 to be described later. The lower end of the release lever 15 is connected to the movable iron core 17 a of the release lever solenoid 17. The movable iron core 17a is biased toward the standby position by the coil 17c of the release lever solenoid 17 by the spring 17b.

  When the release lever solenoid 17 is on, the movable iron core 17a is attracted toward the coil 17c, so that the release lever 15 rotates counterclockwise in FIG. The engagement between the stepped portion 15a and the engaging portion 5b of the open lever 5 is released.

  An open lock lever 9 connected to the lock knob 10 on the front side of the door 2 is slidable in the vertical direction in the figure at a position opposite to the open lever 5 with the release lever 15 in between. An open lock lever spring 18 is attached to the upper end of the open lock lever 9, and the other end of the open lock lever spring 18 is connected to an arbitrary portion of the door 2, so that the open lock lever 9 is pulled upward in FIG. Energized.

  Further, an engaging convex portion 9 a protruding in a convex shape toward the release lever 15 is formed on a side surface slightly above the center of the open lock lever 9. When the open lock lever 9 is pulled upward as shown in FIG. 5, the engaging projection 9a abuts on the tip of the engaging portion 15b of the release lever 15 as shown in FIG. As described above, when the open lock lever 9 is pushed downward, the tip end portion engages with the engagement portion 15 b of the release lever 15. Further, an abutting portion 9b with which a cam 7a of a cylinder lock 7 to be described later abuts is formed so as to rise in the left-right direction in FIG.

  A space portion is formed at a substantially central portion of the open lock lever 9, and the cylinder lock 7 is provided at this position so as to be fixed to the door 2. The cylinder lock 7 is fixed to the door 2, but the open lock lever 9 is slidable in the vertical direction with respect to the door 2. The cam 7a of the cylinder lock 7 is formed so that the radius of rotation increases when the key is rotated in the unlocking direction.

  As shown in FIG. 4, when the engaging projection 9a of the open lock lever 9 and the engaging portion 15a of the release lever 15 are engaged, when the cam 7a of the cylinder lock 7 is rotated, the cam 7 a is not in contact with the contact portion 9 b of the open lock lever 9 and is in contact with the contact portion 15 c of the release lever 15. Further, as shown in FIG. 5, the open lock lever 9 is pulled upward by the open lock lever spring 18, and the engagement convex portion 9a of the open lock lever 9 and the engagement portion 15b of the release lever 15 are not engaged, and the tip thereof When the cams 7a of the cylinder lock 7 are rotated, the cams 7a come into contact with the contact portions 9b of the open lock lever 9 when the cams 7a are rotated.

Next, the operation of the door unlocking / locking device of the present invention will be described with reference to FIGS.
Electric unlocking by the solenoid 17 will be described with reference to FIGS. Manual locking by the lock knob 10 will be described with reference to FIGS. The unlocking and locking by the cylinder lock will be described with reference to FIGS. The change of the personal identification number when unlocked with the cylinder lock 7 will be described with reference to FIGS.

[Unlocked by solenoid from locked state]
In the locked state as shown in FIG. 4, the solenoid 17 is turned off, and the movable iron core 17a is basically in the standby position by the spring 17b. Therefore, the release lever 15 rotates clockwise about the shaft 16 and is engaged so that the engagement step portion 15a of the release lever 15 receives the engagement portion 5b of the open lever 5 from below. The cam 7a of the cylinder lock 7 is in the “closed” position (the cam 7a is a downward position in FIG. 4). Further, the engaging portion 15 b of the release lever 15 is engaged with the engaging convex portion 9 a of the open lock lever 9. This is the lock position. Therefore, the open lever 5 is fixed at the raised position in FIG. 4, and the pushing portion 5 a of the open lever 5 does not press the contact roller 13 of the second lock lever 32. Therefore, the lock lever 3 is pulled toward the center by the lock lever spring 14 and is engaged with the lock plate convex portion 4a of the frame on the main body 1 side to keep the door closed.

  In this state, a password or the like is input from the input numeric keypad 8. If the password entered from the input numeric keypad 8 is correct, the solenoid 17 is turned on for a certain time (for example, 1 second) and the movable iron core 17a is attracted toward the coil 17c, so that the release lever 15 is counterclockwise with the shaft 16 as a fulcrum. Rotate in the direction. Then, as shown in FIG. 5, the engagement between the engagement step portion 15 a of the release lever 15 and the engagement portion 5 b of the open lever 5 is released. At the same time, the engagement between the engagement portion 15b of the release lever 15 and the engagement convex portion 9a of the open lock lever 9 is also released. Then, the open lock lever 9 is pulled upward in the drawing by the open lock lever spring 18 to move, and the engagement portions 15b of the release lever 15 and the engagement convex portions 9a of the open lock lever 9 are brought into contact with each other. become.

  The solenoid 17 is turned off after a certain period of time, and the coil 17c does not have the force to attract the movable iron core 17a. Accordingly, the movable iron core 17a tries to return the release lever 15 to the locked position in an attempt to return to the original position by the spring 17b. However, since the engagement protrusion 15a of the open lock lever 9 and the tip of the engagement portion 15b of the release lever 15 are in contact with each other, the release lever 15 cannot rotate clockwise. The state where the engagement portion 15b and the engagement convex portion 9a of the open lock lever 9 are disengaged is held.

  As a result, the engagement step portion 15a of the release lever 15 and the engagement portion 5b of the open lever 5 are disengaged, so that the open lever 5 can move freely. As shown in FIG. 6, when the open lever 5 is moved downward in the figure by operating the open knob 6, the pushing portion 5 a of the open lever 5 pushes the contact roller 13 disposed on the second lock lever 32, thereby 2 The lock lever 32 rotates counterclockwise about the shaft 12 as a fulcrum. Further, when the pushing portion 3 c of the second lock lever 32 pushes the abutting portion 3 d of the first lock lever 31, the first lock lever 31 rotates clockwise with the shaft 11 as a fulcrum. Therefore, the first lock lever 31 and the second lock lever 32 rotate so as to open against the lock lever spring 14 (in the vertical direction in the figure), and the engagement of the lock lever 3 with the lock plate convex portion 4a is engaged. It is unraveled and the door 2 can be opened.

  When the pressing of the open knob 6 is stopped after the door 2 is opened, the first lock lever 31 and the second lock lever 32 are pulled by the lock lever spring 14, and the lock lever 3 is returned to its original position as shown in FIG. Return. That is, in this state, since the lock mechanism is released, the open lever 5 can be freely pushed down by the open knob 6, and the lock lever 3 can be freely opened and closed.

[Locking with lock knob from unlocked state]
When the door 2 is tightened in the unlocked state, the engaging claws 3a and 3b of the lock lever 3 are once pushed and expanded by the lock plate convex portion 4a, and then the engaging claws 3a and 3b are attracted to each other by the lock lever spring 14. , Engaged with the lock plate protrusion 4a. In this state, when the lock knob 10 is manually pushed downward and the open lock lever 9 is pushed down against the open lock lever spring 18, the end of the engagement convex portion 9 a of the open lock lever 9 is engaged with the engagement portion 15 b of the release lever 15. Detach from the tip. When the open lock lever 9 is pushed down to the position shown in FIG. 4, the shaft 16 is moved by the spring 17 b of the solenoid 17 so that the engagement portion 15 b of the release lever 15 is engaged with the engagement convex portion 9 a of the open lock lever 9. With the fulcrum as a fulcrum, the release lever 15 rotates clockwise. Then, the engagement step portion 15a of the release lever 15 and the engagement portion 5b of the open lever 5 are engaged, and the open lever 5 is locked so that it cannot move. Thereby, the door 2 will be in a locked state.

[Unlocked with cylinder lock from locked state]
In the locked state shown in FIG. 4, the key is inserted into the cylinder lock 7 and the cam 7a is rotated in the unlocking direction (clockwise in FIG. 4). When the cam 7a gradually pushes the contact portion 15c of the release lever 15, the release lever 15 rotates counterclockwise about the shaft 16 as a fulcrum. Then, when the cam 7a rotates 90 degrees, the engaging portion 15b of the release lever 15 is disengaged from the engaging convex portion 9a of the open lock lever 9 as shown in FIG. Then, the open lock lever 9 is pulled upward in the drawing by the open lock lever spring 18, and the tip of the engagement convex portion 9 a of the open lock lever 9 and the tip of the engagement portion 15 b of the release lever 15 come into contact with each other.

  Then, as shown in FIG. 8, the engaging step 15 a of the release lever 15 and the open lever 5 at the same time that the tip of the engaging convex portion 9 a of the open lock lever 9 abuts the tip of the engaging portion 15 b of the release lever 15. The engagement portion 5b is disengaged. As a result, the open lever 5 is unlocked and can move freely. Therefore, by pushing down the open knob 6 and moving the open lever 5 downward, the first lock lever 31 and the second lock lever 32 rotate, and the door 2 can be opened.

  As shown in FIG. 4, the engagement convex portion 9 a of the open lock lever 9 and the engagement portion 15 b of the release lever 15 are engaged, that is, the open lock lever 9 resists the open lock lever spring 18. When the cam 7a of the cylinder lock 7 is rotated, the cam 7a of the cylinder lock 7 can rotate without contacting the contact portion 9b of the open lock lever 9.

[Locking by cylinder lock from unlocked state by cylinder lock]
When the door 2 is tightened in the unlocked state shown in FIG. 8, the engaging claws 3 a and 3 b of the lock lever 3 are once pushed and expanded by the lock plate convex portion 4 a, and then the engaging claws 3 a and 3 b are moved by the lock lever spring 14. They are attracted to each other and engaged with the lock plate protrusion 4a. In this state, the key of the cylinder lock 7 is rotated in the locking direction as shown in FIG. 9 (counterclockwise in the figure).

  Then, as shown in FIG. 9, the cam 7 a of the cylinder lock 7 comes into contact with the contact portion 9 b of the open lock lever 9 and gradually pushes down the open lock lever 9 against the open lock lever spring 18. Then, the distal end of the engaging convex portion 9 a of the open lock lever 9 is disengaged from the distal end of the engaging portion 15 b of the release lever 15. When the open lock lever 9 is pushed down to the position shown in FIG. 4, the spring 17 b of the solenoid 17 is pivoted so that the engagement portion 15 b of the release lever 15 engages with the engagement convex portion 9 a of the open lock lever 9. The release lever 15 rotates clockwise with 16 as a fulcrum. Then, the engagement step portion 15a of the release lever 15 and the engagement portion 5b of the open lever 5 are engaged, and the open lever 5 is locked so that it cannot move. Thereby, the door 2 will be in a locked state.

[Enter PIN when unlocking with cylinder lock from unlocked with cylinder lock]
FIG. 10 is an explanatory view showing the state of the microswitch when the lock mechanism of the door unlocking / locking device of the present invention is released by the cylinder lock. FIG. 11 is an explanatory view showing the state of the microswitch when the lock mechanism of the door unlocking / locking device of the present invention is locked by the cylinder lock.

  As shown in FIG. 10, in order to detect the unlocking by the cam 7a of the cylinder lock 7, a micro switch 19 is provided at a position where the switch is turned on when the cam 7a is in the unlocking position. In the illustrated example, the cam 7 a is in direct contact with the microswitch 19. The microswitch 19 is turned on only when it is pushed by the cam 7a, and turned off when the cam 7a is separated.

  The password is changed only when the microswitch 19 is turned on. In this way, the micro switch 19 is turned on only when the cam 7a is rotated by the key, so that the micro switch 19 is turned on only when the cylinder lock 7 is unlocked. Therefore, the password can be changed only when the cylinder lock 7 is unlocked with the key, and only the owner of the key can change the password, and others cannot change the password without permission.

  The door unlocking / locking device of the present invention is not limited to the door of a safe or a key box, and can be used for various doors as long as the power can be secured. In particular, it is suitable for applications where it is desired to keep the unlocked state for a long time, and its use range is extremely wide.

It is a front view of the key box using the unlocking | locking / locking apparatus of the door of this invention. It is the perspective view seen from the back surface of the state which opened the door of the key box of FIG. It is the perspective view which expanded the lock mechanism part shown in FIG. 2, and shows the state by which the lock mechanism is cancelled | released. It is explanatory drawing which shows the state in which the locking mechanism of the unlocking | locking / locking apparatus of the door of this invention is locked. FIG. 5 is an explanatory diagram showing a state where the lock mechanism shown in FIG. 4 is released by a solenoid. FIG. 5 is an explanatory view showing a state where the lock mechanism shown in FIG. 4 is released and unlocked by a solenoid. It is explanatory drawing which shows the state by which the locking mechanism of the door unlocking | locking / locking apparatus of this invention was cancelled | released by the cylinder lock. It is explanatory drawing which shows the state which the lock mechanism shown in FIG. 7 was cancelled | released and unlocked with the cylinder lock. It is explanatory drawing which shows the state in the middle of the lock mechanism shown in FIG. 7 being locked with a cylinder lock. It is explanatory drawing which shows the state of a microswitch when the locking mechanism of the door unlocking / locking device of the present invention is released by the cylinder lock. It is explanatory drawing which shows the state of a microswitch when the locking mechanism of the door unlocking | locking / locking apparatus of this invention is locked by the cylinder lock.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Door 3 Lock lever 31 1st lock lever 32 2nd lock lever 3a Engagement claw 3b Engagement claw 3c Push part 3d Contact part 4 Lock plate 4a Lock plate convex part 5 Open lever 5a Push part 5b Engagement part 6 Open Knob 7 Cylinder Lock 7a Cam 8 Input Keypad 9 Open Lock Lever 9a Engaging Protrusion 9b Abutting Part 10 Lock Knob 11 Shaft 12 Shaft 13 Abutting Roller 14 Lock Lever Spring 15 Release Lever 15a Engaging Step 15b Engaging Part 15c Contact part 16 Shaft 17 Solenoid 17a Movable iron core 17b Spring 17c Coil 18 Open lock lever spring 19 Micro switch

Claims (3)

In the door unlocking / locking device that enables the operation of the lock lever formed with the engaging claw by releasing the lock mechanism that holds the closed state of the door,
The unlocking of the door, which is performed by releasing the locking mechanism, is an electric unlocking that is performed by operating a solenoid by inputting a password to the door numeric keypad, and a key unlocking that is performed by operating a cylinder lock with a key. With two methods of locks,
The locking of the door performed by locking the locking mechanism has two methods: a key-type locking performed by operating a cylinder lock with a key, and a manual-type locking performed by manually moving the lock mechanism. The door unlocking / locking device. In the door unlocking / locking device that enables the operation of the lock lever formed with the engaging claw by releasing the lock mechanism that holds the closed state of the door,
In order to control the operation of the open lever for moving the lock lever formed with the engaging claw for holding the closed state of the door, a release lever detachable from the open lever is provided, and a solenoid When the solenoid is turned on by connecting the release lever to the movable iron core and inputting a password to the door numeric keypad, the movable iron core is attracted from the standby position toward the solenoid body and the release lever is released. When the lever is disengaged and the open lever is moved manually, the release lever is disengaged from the open lever by the open lock lever even when the solenoid is turned off in that state. An electric unlocking mechanism that maintains the state;
The open lock lever is detachable from the release lever to control the operation of the release lever with respect to the open lever, and the release lever is disengaged from the open lever by the open lock lever. When the solenoid is powered off, the movable iron core is stopped at the standby position by the force of the spring, and the open lock lever and the release lever are engaged. And a manual locking mechanism in which the release lever is engaged with the open lever and the movement of the open lever is restricted,
A cylinder lock provided with a key hole on the door surface is provided, and the release lever and the open lock lever are moved by moving the cam of the cylinder lock with the key so that the release lever can be engaged with and disengaged from the open lever. Key-type unlocking and locking mechanism
A door unlocking / locking device characterized by comprising:   3. The door unlocking / locking device according to claim 2, wherein a new password can be input by releasing the engagement of the release lever with respect to the open lever by the cylinder lock.

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