JP3307040B2 - Emergency unlocking device for electronic lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture, such as a safe or locker, in which a door and a main body can be disengaged by an electronic lock.
The present invention relates to an emergency unlocking device that can release an electronic lock with a key from outside.

[0002]

2. Description of the Related Art A fixture such as a safe that locks and unlocks a door with a conventional electronic lock uses an electromagnetic solenoid and generally has the following configuration. That is, the door is provided with a bar that is removably engaged with the furniture body by operating a handle or the like provided on the door surface and an engaging member that is interlocked with the bar. Further, the above-mentioned electromagnetic solenoid has a function that the movable iron core protrudes in a non-energized state, and has a function of immersing the movable iron core in an energized state, and is stored in advance from a numeric keypad or the like provided on the front side of the door. By inputting the personal identification number to the control device, it is possible to energize the electromagnetic solenoid. When the bar is engaged with the furniture main body, the movable iron core in the projecting state of the electromagnetic solenoid engages and fixes the engaging member, so that the door can be held in a locked state.

In order to unlock the locked door in such a configuration, first, a password is input to a numeric keypad provided on the front side of the door, and the electromagnetic solenoid is turned on. As a result, the movable iron core of the electromagnetic solenoid is immersed, the engagement member and the movable iron core are disengaged, and the operation of the bar is free. By operating the handle provided on the front side of the door, the furniture of the bar is obtained. The door can be opened by releasing the engagement with the main body. In such furniture, a key lock is often used in combination with an electronic lock.

[0004]

In the furniture having such a structure, it is necessary to input a password in order to unlock the door, and it is necessary to forget the password with the door locked. If nothing happened, the door could not be opened without destroying the door and the furniture itself. And forgetting the PIN is a common occurrence every day, and it would be extremely unreasonable to destroy furniture each time. Further, even when a key-type lock is also used, this lock is an auxiliary for the electronic lock, and thus the electronic lock cannot be opened. If an incorrect operation is performed when the number is stored in the electronic lock, or if the circuit of the electronic lock is damaged for some reason, the storage of the security code will disappear after a certain period of time if the battery runs out. The same inconvenience occurs when the user does not notice

In order to deal with such inconveniences, a method of fixing a personal identification number and storing the identification number is considered. In this method, for example, a hotel room or the like is used. In the case of using the safe at a safe located in the same room, the security code of the safe cannot be assured because the password is known to the customer using the same room.

In such a case, the guest can set his own personal identification number to ensure the safety of the safe, and to protect the door in case of forgetting the personal identification number without destroying the door. It is necessary to provide emergency unlocking means that can release the lock.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve such problems. That is, on the back of a door of a fixture such as a safe, there is provided a bar that can be disengaged from the fixture body in conjunction with a handle provided on the surface of the door, and an engaging member that is linked to the bar. Further, an electromagnetic solenoid having a movable iron core engaged with the engaging member is fixed to the back surface of the door. In this electromagnetic solenoid, the movable iron core is in a protruding state when not energized, and the movable iron core is immersed when energized, and can be energized by an energizing means provided on the door surface. Here, the energizing means is connected to the electromagnetic solenoid.
A battery box containing a battery that supplies power to the control unit
And a battery cover of the battery box.
Then, the bar is engaged with the furniture main body, and when the door is fixed to the furniture main body, the engagement portion is engaged and fixed to the protruding movable core. In the electronic lock having such a configuration, in order to be able to unlock the electronic lock from the outside in an emergency, a release piece that operates to push the movable iron core is provided, and a cylinder lock in which the release piece and its rotating portion are linked.
A keyhole on the bottom of the battery box,
Remove the bar and the battery from the battery box,
The keyhole of the cylinder lock is configured to be exposed .

[0008] Further, as an example of the release piece, the movable iron core is rotated around an axis extending substantially perpendicular to the longitudinal direction of the movable iron core so that the movable iron core comes into contact with the distal end surface of the movable iron core. May be conceived, and the surface that engages with the movable iron core of the engaging member may be set in the moving direction of the inclined surface. And
The movable iron core of the electromagnetic solenoid is fitted with an E-ring in the middle.
It is pushed by the spring when it is not energized and protrudes
State, when energized, it is immersed against the spring,
Iron core fixing to regulate the movement of the core and fix it
The tool can rotate around the screw on the electromagnetic solenoid.
And the rotation angle is regulated,
The fixed part of the core fixing tool is engaged with the movable iron core and the E-ring.
In a normal state, the notch is
Position so that it does not engage the heart, and the hinge side of the door
When the body is rotated so that it comes to
The notch rotates by its own weight, and the notch engages with the movable iron core.
It is also preferable to set them as follows.

[0009]

With this configuration, in the emergency unlocking device of the present invention, the battery cover is removed, and the battery is unplugged from the battery box.
When the pond is removed, the keyhole of the cylinder lock appears.
With the door locked, insert the key into the keyhole of the cylinder lock from the door surface without turning on the electromagnetic solenoid and turn the key so that the release piece rotates in the direction to push the movable core. Then, the movable iron core can be pushed in, and this can be brought into the immersion state. Thereby, the engagement between the movable iron core and the engaging member is released, and the engaging member and the bar that is interlocked therewith become operable. Here, by operating the handle on the front side of the door interlocking with the bar and moving it so that the bar is disengaged from the furniture body, the bar is disengaged from the furniture body and the door is locked. Can be canceled.

[0010] The release piece is rotated around an axis extending in a direction substantially perpendicular to the longitudinal direction of the movable iron core, so that the movable iron core is pushed into the movable iron core while being in contact with the distal end surface of the movable iron core. If the movable iron core is set in such a manner that it has an inclined surface and the surface that engages with the movable core of the engaging member is located in the moving direction of the inclined surface, the movable iron core is immersed in the emergency unlocking device. Later, when the handle is disengaged from the furniture body by operating the handle, the inclined surface holds down the movable core until the engaging member cannot be engaged even if the movable core projects. , Make this immersive.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) A perspective view according to Embodiment 1 of FIG. 1 is an example of a fixture provided with an unlocking device in an electronic lock according to the present invention.
Shows a safe. First, an outline of how to use the safe will be described. It is assumed that the door 2 that is rotatably fixed to the main body 1 of the safe via the hinge 5 is locked to the main body 1 of the safe by an electronic lock in this state. In this state, a predetermined password is input from the power supply means 3 provided on the surface of the door 2. Then, the electronic lock is unlocked, and by turning the handle portion 4 installed on the door surface in a predetermined direction, the locked state of the door 2 and the main body 1 of the safe is released, and the door can be opened.

FIG. 2 shows a state in which the door is opened. FIG. 2 shows an exploded state of a part of a component (a cover 7 described below) for convenience. 2 is provided with a recess 6 for accommodating a locking mechanism 14 and an emergency unlocking mechanism 15, which will be described in detail later. The cover 7 is screwed through a screw 8 so as to protect and cover the recess 6. Fixed. A control device 9 for controlling the electronic lock is installed on the side of the cover 7 facing the back surface of the door 2. A fixing projection 13 protrudes from a side of the door 2 closer to the hinge 5, and an engaging portion 12 a of the bar 12 constituting the locking mechanism 14 in the recess 6 is freely protruding and retracting on the opposite side. It is configured to operate. In FIG.
2a is shown in a protruding state. A hole 11 in which the fixing protrusion 13 engages in front of the inner surface closer to the hinge 5 of the main body 1, and a hole in which the engaging portion 12a of the bar 12 engages in front of the opposite inner surface. When the door 2 is closed and locked, the fixing projection 13 and the hole 11, the engaging portion 12a of the bar 12 and the hole 10 are engaged to fix the door.

Next, the locking mechanism 14, the emergency unlocking mechanism 15
Will be described. FIG. 4A shows an arrow A in FIG. What appears here is the interior of the recess 6 described above, in which a locking mechanism 14 comprising a bar 12, an engaging member 16, an electromagnetic solenoid 17, and an emergency unlocking mechanism 15 having an inclined piece 18 are housed. ing.

These will be described in detail with reference to FIG. FIG. 3 is a perspective view showing an internal mechanism of the recess 6. First, the locking mechanism 1
4 will be described in detail. Bar 12 which constitutes locking mechanism 14
Has a substantially elongated plate shape, and has the above-described engaging portion 12a, crank hole 12b, guide hole 12c, and joint surface 12d.
The engaging portion 12a is inserted into a square hole 22 provided on the side surface of the door 2. Then, the bar 12 is fixed to the guide bar 23 erected on the bottom surface of the concave portion 6 via the guide hole 12c with an E-ring so as to operate only a certain width in the longitudinal direction. As a result, the engaging portion 12a operates to protrude and retract from the square hole 22 and does not fall out from the square hole 22 to the inside. Also,
The bar 12 is connected to a crank pin 25a of a crankshaft 25 connected to the handle portion 4 through a crank hole 12b, and is linked with the rotation of the handle portion 4 by a crank mechanism.

The electromagnetic solenoid 17 is controlled by the control device 9 described above, and the control device 9 is connected to the power supply means 3 installed on the front side of the door 2 described above. The electromagnetic solenoid 17 is fixed to the bottom of the recess 6. Since the movable iron core 19 is pressed by a spring, the electromagnetic solenoid 17 is in a protruding state when not energized, and has a function of making the movable iron core 19 immersed against the spring when energized. Have Moreover, it said the movable iron core 19 is cut a groove along the axial circumference in the middle of the side, which is here fitting the E-ring 26. E-ring 2
6, the base-side surface of the movable core 19 is pressed by the spring, the tip-side surface of the movable core 19, the non-passing electromagnetic stopper plate 2 is fixed to the bottom surface of the recess 6
7 restricts the excessive protrusion. The stopper plate 27 is smaller than the outer diameter of the E-ring 26 and
A hole larger than the outer diameter of 9 is provided, and the movable iron core 19 protrudes and retracts in this hole. Further, an iron core fixing member 28 is provided on a surface opposite to the surface on which the electromagnetic solenoid 17 is fixed. The iron core fixing member 28 is fixed by a screw 28a so as to be rotatable around the same, and the rotation angle is regulated by the screw 28b and the arc-shaped long hole 28c. Then, the iron core fixing member 28 is provided with a fixing portion 28d which is bent toward the bottom surface of the concave portion 6 at right angles to the bottom surface,
The fixing portion 28d is provided with a cutout 28d 'which engages with the movable iron core 19 and the E-ring 26 and fixes them. In addition,
The position of the screw 28a is determined based on the relationship with the center of gravity of the core fixture 28, and in a normal state, the cutout 28d 'of the core fixture 28 does not engage with the movable core 19 (the position in the figure).
As in

As shown in FIG. 6, the energizing means 3 includes a numeric keypad 3a, a battery box 3b for storing a battery for supplying power to the electromagnetic solenoid 17 and the control device 9, and a battery cover 3c for the battery box 3b. I have. Battery cover 3
c, as shown in FIG. 1, forms a part of the outer wall constituting the entire form of the energizing means 3 in the fitted state, and its existence is indistinguishable in appearance. The control device 9 is configured such that, when a pre-stored password is input from the numeric keypad 3a of the energizing means 3, the electromagnetic solenoid 17 is energized for a certain period of time. Then, the control device 9 of the cover 7 described above
A reset button (not shown) is provided on the surface opposite to the side on which the device is placed, and is set so that the four-digit number initially input by pressing this button is stored as a password. .

The engaging member 16 has an elongated plate shape, and one end of the wide surface is joined to a joining surface 12d provided at an end of the bar 12 opposite to the engaging portion 12a. Thereby, the engaging member 16 is interlocked with the movement of the bar 12. An engaging portion 16a is provided on an end surface of the bar 12 which is located on the opposite side to the side joined to the joining surface 12d. The locking portion 16a is in a state where the door 2 is locked, that is, in a state where the engaging portion 12a of the bar 12 protrudes from the square hole 22 provided on the side surface of the door 2, and the movable iron core 19 of the electromagnetic solenoid 17 protrudes. Is set so as to engage with the side surface of the movable iron core 19. Accordingly, in such a state, the movement of the engagement member 16, the bar 12, and the handle portion 4 is restricted and fixed. Also,
A movable core 19 protruding from the wide surface of the engagement member 16 is provided.
A hole 16b is provided to pass through. The hole 16b is in the unlocked state of the door 2, that is, the engaging portion 12 of the bar 12
The movable iron core 19 passes in a state where “a” is immersed through the square hole 22. The hole 16 b has a locking portion 16 b ′ that engages with a side surface of the movable iron core 19 at a part of the inner edge near the movable iron core 19.
Is provided. Thereby, even in such a state, the engagement member 16,
The movement of the bar 12 and the handle 4 is restricted and fixed.

The operation of the locking mechanism 14 having the above configuration will be described. First, consider a state in which the door 2 is closed and locked as shown in FIG. It is assumed that the password is already set. At this time, the engaging portion 12a of the bar 12 protrudes from the side surface of the door 2 and is engaged with the hole 10 of the main body 1, and the engaging portion 16a of the engaging member 16 is in the projecting state of the electromagnetic solenoid 17. Is engaged with the movable iron core 19 of the
6, the bar 12 and the handle portion 4 are fixed.

First, a password is input to the control device 9 from the numeric keypad 3a of the power supply means 3. Then, the electromagnetic solenoid 17 is energized for a certain period of time, and the movable iron core 19 is immersed. Thereby, the engagement between the movable iron core 19 and the locking portion 16a of the engaging member 16 is released, and the engaging member 16, the bar 12,
The handle portion 4 becomes freely operable. Here, the handle part 4
By turning, the bar 12 is moved so that the engagement portion 12a and the hole 10 of the main body 1 are disengaged from each other, whereby the door is unlocked and the door 2 can be opened. Then, when a certain time has elapsed in this state, the control device 9 cuts off the power supply to the electromagnetic solenoid 17, and the movable iron core 19 of the electromagnetic solenoid 17 is again in the protruding state. At this time, the movable iron core 1
9 passes through a hole 16b provided in the engaging member 16 and engages with the locking portion 16b '. Thereby, the engagement member 16, the bar 12, and the handle portion 4 are fixed in the unlocked state.
Further, in order to lock the door 2 again, in this state, the door 2 is closed, a password is input to the control device 9 from the numeric keypad 3a of the energizing means 3, the electromagnetic solenoid 17 is energized, and the movable core 19 is turned on. Immerse yourself. Then, the engagement between the movable iron core 19 and the locking portion 16a of the engaging member 16 is released, and the engaging member 16, the bar 12 and the handle portion 4 become free to operate. Here, the handle portion 4 is turned, and the bar 12 is moved so that the engaging portion 12a is engaged with the hole 10 of the main body 1. When a certain time has elapsed in this state, the control device 9 cuts off the power supply to the electromagnetic solenoid 17 and turns off the electromagnetic solenoid 17.
The movable iron core 19 of FIG. As a result, the engaging portion 16a of the engaging member 16 engages with the movable iron core 19 of the electromagnetic solenoid 17 in the protruding state, and the engaging member 16 and the bar 1
2. The handle part 4 is fixed, and the door is locked again.

Next, the function of the iron core fixture 28 provided on the electromagnetic solenoid 17 will be described with reference to FIGS.
The iron core fixture 28 regulates the movement of the movable iron core 19 of the electromagnetic solenoid 17 so as to be fixed there.
First, as shown by the solid line in FIG.
Is protruding and the safe is locked. In this state, assuming that the safe rotates so that the side surface on the hinge 5 side is directed upward, as shown by the imaginary line in FIG. 4 (a), the iron core fixing member 28 rotates around the screw 28a by its own weight. Then, the notch 28d 'of the fixing portion 28d engages with the movable iron core 19. At this time, the fixing portion 28d is located on the side of the E-ring 26 pressed by the spring. In this state, even if the movable iron core 19 is set to the immersion state, the E-ring 26 is caught by the fixing portion 28d and cannot be immersed. Therefore, in this state, the safe can never be unlocked. Then, when the safe rotates in the opposite direction to the previous state and returns to the normal state again, the iron core fixing member 28 rotates around the screw 28a by its own weight, and as shown in FIG.
To the state shown by the solid line. Accordingly, the engagement between the notch 28d 'of the fixed portion 28d and the movable core 19 is released, and the movable core 19
Will be able to immerse and unlock the safe. Next, the movable iron core 19 is forcibly moved as shown in FIG.
To the immersive state as shown by the solid line. In this state,
The iron core fixing device 28 is forcibly rotated, and the notch 28d 'of the fixing portion 28d is engaged with the movable iron core 19 as shown by the imaginary line in FIG. At this time, the fixed portion 28d is located on the distal end side of the movable iron core 19 with respect to the E-ring 26. By doing so, E is pressed by the spring.
The ring presses the fixing portion 28d, and the fixing portion 2d is pressed.
8d is fixed at this position, and the movable iron core 19 is held in the immersion state. Therefore, the lock of the safe can always be in the unlocked state.

Next, the emergency unlocking mechanism 15 will be described in detail with reference to FIGS. 3, 4 and 5. FIG. Emergency unlocking mechanism 15
Is constituted by a release piece 18 having an inclined surface 18a, a rotation shaft 20 of the release piece 18, and a cylinder lock 29 interlocked with the rotation shaft 20. These will be described with reference to FIG. First, the rotating shaft 20 is provided upright on the bottom surface of the concave portion 6 so as to be located on the tip side of the movable iron core 19 of the electromagnetic solenoid 17. The release piece 18 is an elongated plate, and the side surface of the rotary shaft 20 and the end of the wide surface thereof are joined so that the longitudinal direction of the release piece 18 is perpendicular to the rotary shaft 20 and substantially in a tangential direction around the shaft. . The release piece 18 has an inclined surface 18a near the tip. When the release piece 18 rotates around the rotation shaft 20 toward the distal end of the movable core 19, the inclined surface 18 a comes into contact with the distal end surface of the movable core 19. The movable core 19 is pushed into the movable iron core 19 while being in contact with the front end surface of the movable member, and has a position and inclination such that when the front end portion of the inclined surface 18a comes into contact, the movable iron core 19 is completely immersed. In order to prevent the release piece 18 from rotating too much, the rotation stopper 21 stops at the point where the inclined surface 18a enters the movable iron core 19 and hits the release piece 18.
Are provided upright on the bottom surface of the recess 6. Cylinder lock 2
Reference numeral 9 denotes a door whose rotating part is joined to the rotating shaft 20 and the door 2
It is fixed to. As a result, the release piece 18 is
0 is linked with the cylinder lock 29. The keyhole 29a of the cylinder lock 29 is a key 29a from the front side of the door 2.
Is set so that can be inserted. Here, as shown in FIG. 6, the keyhole 29a is provided on the bottom surface of the battery box 3b of the power supply means 3.

The operation of the emergency unlocking mechanism 15 having the above configuration will be described with reference to FIG. First, it is assumed that when the door 2 is initially closed and locked, the energizing means 3 cannot be used for some reason. At this time, as shown in FIG. 4A, the mechanism inside the concave portion 6 is such that the engaging portion 12a of the bar 12 is engaged with the main body 1 and the movable iron core 19 of the electromagnetic solenoid 17 is in a protruding state. Since the engaging portion 16a of the engaging member 16 is engaged, the bar 12, the engaging member 16, and the handle portion 4
Is a fixed state. Here, as shown in FIG. 6, the battery cover 3c of the power supply means 3 is removed, and the battery is removed from the battery box 3b. Then, the keyhole 2 of the cylinder lock 29
9a appears. The key 29b is inserted into the keyhole 29a, and the inclined surface 18a of the release piece 18 is fully rotated in the direction toward the movable iron core 19 (to the left toward the surface of the door 2). Then, the release piece 18 pushes the movable iron core 19 by the inclined surface 18a, and is in a immersed state.
It stops by hitting the rotation stopper 21 and the state shown in FIG. Since the movable core is in the immersed state, the engaging portion 16a of the engaging member 16 is disengaged, and the bar 12, the engaging member 16, and the handle portion 4 become operable. The lock can be released by rotating the handle portion 4 so as to disengage the engaging portion 12a of the bar 12 from the main body 1. At this time, the inclined surface 18a of the release piece 18 is pushed back by the locking portion 16a of the engagement member 16, and the inclined surface 18a
Cannot push the movable iron core 19 in. Therefore, the movable iron core 19 projects again, and the hole 16
b, and engages with the locking portion 16b '.
The bar 12, the engaging member 16, and the handle portion 4 are fixed, and are in the state shown in FIG.

The operation of the emergency unlocking mechanism 15 at this time will be described in further detail with reference to FIG. FIG. 5 is a cross-sectional view showing how the movable iron core 19 of the electromagnetic solenoid 17 and the engagement member 16 are engaged and disengaged. Also, for convenience, the emergency unlocking mechanism 15
Is not shown as a sectional view. The solid line in FIG. 5A shows the initial state, that is, the state shown in FIG. When the key 29b is inserted into the cylinder lock 29 and rotated in this state, first, the inclined surface 18a of the release piece 18 comes into contact with the tip of the movable iron core 19 to be in a state as shown by an imaginary line in FIG. . When the rotation is further continued, the inclined surface 18a pushes up the movable iron core 19 according to the same principle as that of the cam while abutting on the tip of the movable iron core 19, and a state as shown in FIG.
This state is the same as the state shown in FIG. At this time,
The tip of the inclined surface 18a makes the movable iron core 19 immersed,
The release piece 18 stops on the rotation stopper 21. Here, the movable core 19 and the locking portion 16a of the engagement member 16
The handle portion 4 is turned, and the bar 12
Move. Then, the engaging member 16 interlocking with the bar 12 moves, and the locking portion 16a of the engaging member 16 comes into contact with the inclined surface 18a of the release piece 18 as shown in FIG.
In this state, the distal end of the movable core 19 abuts against the inclined surface 18a and the distal end 16c of the upper surface of the engaging member 16, and both of them prevent the movable core 19 from projecting. Further, when the handle portion 4 is turned, the inclined surface 18 a
6a, and finally leaves the tip of the movable core 19. However, the movable iron core 19 is restrained by the distal end portion 16c on the upper surface of the engaging member 16, and does not project. Then, when the hole 16b of the engaging member 16 and the distal end face of the movable core 19 overlap, the movable core 19 is released from the regulation and protrudes to move.
The state shown in FIG. 4D, that is, the state shown in FIG. At this time, the side surface of the movable iron core 19 and the locking portion 16 of the engagement member 16
b 'is engaged, the bar 12, the engaging member 16, the handle portion 4
Will be fixed.

With the above configuration, the emergency unlocking device according to the first embodiment has the following effect in addition to the effect that the electronic lock can be unlocked in an emergency. First, the keyhole 29a
Is provided on the bottom surface of the battery box 3b of the power supply means 3, so that the key hole 29a is normally covered by the battery mounted on the battery box 3b, and the battery cover 3c covers the key hole 29a. The battery cover 3c is, as shown in FIG.
In the fitted state, the existence of the battery cover 3c cannot be visually recognized, so that a person who does not know the existence of the battery cover 3c cannot remove it. Even if it can be removed, there is only a normal battery underneath, and there is no doubt that there is a keyhole 29a under the battery. Even if the battery is removed, attention is not normally paid to the bottom surface of the battery box 3b, and even if the keyhole 29a is found, it is not known what the purpose is provided for, and naturally, However, the cylinder lock 29 cannot be turned without the key 29b. That is, the locked door 2 is normally locked in the keyhole 2 unless the password is unlocked by inputting the password into the electronic lock.
Knowing the position of 9a, it can only be opened by the person holding the key 29b, which guarantees the safety of the safe.

Next, the iron core fixture 2 is attached to the electromagnetic solenoid 17.
Since 8d is provided, the movable iron core 19 can always be in the immersion state, that is, the door 2 can always be in the unlocked state. This allows the door 2 to be locked when checking the degree of interlocking between the handle 4 and the bar 12, the engagement between the engaging portion 12 a of the bar 12 and the hole 10 in the main body 1, and performing repairs. Since there is no such work, the work becomes very easy. Also,
Since the movable iron core 19 of the electromagnetic solenoid 17 can be prevented from rattling during transportation, the risk of failure can be avoided. Further, in the case of exhibiting at a storefront, the customer can freely observe the state of the interior, thereby improving the convenience of the customer. On the other hand, the iron core fixing device 28 also has the effect of preventing the movable iron core 19 from being immersed when the entire safe is tilted with the door 2 locked, so that the emergency unlocking mechanism 15 can never be unlocked. By utilizing this, for example, if a predetermined surface is set down at the time of transportation, it is possible to avoid a failure due to rattling of the movable iron core 19 in the same manner as described above.

(Embodiment 2) The embodiment 2 is the same as the embodiment 1 except for the following parts. Example 1 Using FIG.
The differences from this are described. FIG. 7 is a perspective view illustrating the emergency unlocking mechanism 15 according to the second embodiment. This emergency unlocking mechanism 1
5, a release piece 18 and its inclined surface 18a are thinned in the longitudinal direction of the rotating shaft 20, and the width thereof is
Is set thinner than the shaft diameter of the movable iron core 19. Also,
The position of the release piece 18 is determined so that the axis of the movable iron core 19 is located on the rotation plane with respect to the rotation shaft 20 at the center of the width. The thickness of the release piece 18 is increased in order to increase the strength. On the other hand, the locking portion 16 of the engagement member 16
A cut 16d is made in a. Cut 16d
Is smaller than the shaft diameter of the movable iron core 19 and the release piece 18
The width and the position are set so that the inclined surface 18a can pass through when is rotated.

The operation of the emergency unlocking mechanism 15 according to the second embodiment configured as described above will be described with reference to FIG. FIG. 8 is a cross-sectional view showing how the movable iron core 19 of the electromagnetic solenoid 17 is engaged and disengaged. Also in this figure, the emergency unlocking mechanism 15 is not shown as a sectional view for convenience.
First, consider the state of FIG. 8A. This is because the door 2 is unlocked, that is, the engaging portion 12a of the bar 12 is immersed in the side surface of the door 2, and the protruding movable iron core 19 passes through the hole 16b of the engaging member 16. , Movable iron core 1
9 and the engaging portion 16b 'of the hole 16b is engaged. It is assumed that the door is now closed. Here, the key 29b is inserted into the cylinder lock 29, and the inclined surface 18a of the release piece 18 is turned in the direction toward the tip of the movable iron core 19 (to the left toward the surface of the door 2). Then, the inclined surface 18a of the release piece 18 is moved as indicated by the imaginary line in FIG.
9 touches the tip. When further turned, the release piece 18 pushes up the movable core 19 while bringing the inclined surface 18a into contact with the tip of the movable core 19, and a state as shown in FIG. 8B is obtained. In this series of operations, since the notch 16d is formed in the locking portion 16a of the engaging member 16, the inclined surface 18a passes through the notch 16d and is not blocked by the locking portion 16a. In this state, the movable iron core 19 and the locking portion 16
Since the engagement with b ′ is released, the bar 12, the engagement member 16,
The handle part 4 becomes operable. Therefore, the handle part 4
Is turned in the direction in which the engaging portion 12a of the bar 12 engages with the main body, and when this is engaged, a state as shown in FIG. In this operation, the engagement member 16 can be operated without being blocked by the release piece 18 by the cut 16d. Then, when the key 29b is turned in the opposite direction to return to the original state, the movable iron core 19 has no restricting member and is again in the protruding state. As a result, FIG.
As shown in (d), the side surface of the movable iron core 19 is
And the door 2 is locked again. In order to unlock the door 2, an operation completely opposite to the above operation may be performed.

The emergency unlocking mechanism 15 according to the second embodiment
Performs the operation described above, so that, for example, when the electronic lock is broken and cannot be used, the electronic lock can be unlocked, as well as locked. Further, similarly to the iron core fixing device 28 in the first embodiment, since the bar 12 and the like can be freely moved while the movable iron core 19 is in the immersed state, it is possible to facilitate the inspection and the like.

The embodiment according to the present invention has been described above. In the embodiment, the emergency unlocking mechanism 15 is configured to rotate the release piece 18 about an axis extending in a direction substantially perpendicular to the longitudinal direction of the movable iron core 19, thereby causing the inclined surface 18 of the release piece 18 to rotate.
Although a is configured to push the movable core in a state in which a is in contact with the distal end surface of the movable core, such a configuration is not necessarily required. For example, as shown in FIGS. As described above, the release piece 18 may be slid and the movable iron core 19 may be pushed in. In short, the release piece 18 operates in conjunction with the rotating part of the cylinder lock 29,
What is necessary is just to push in the release piece 18 so that the unlocking operation can be performed.
Further, the keyhole 29a of the cylinder lock 29 is provided on the bottom surface of the battery box 3b of the energizing means 3, but it is sufficient that this position is not found from the outside. The door 3b may be detachably provided under the keypad 3a, may be provided under the numeric keypad 3a, or a hidden space may be provided somewhere on the surface of the door 2 and provided there. The hole 16b provided in the engaging member 16 is provided to fix the door 2 in an unlocked state in order to prevent the door 2 from being inadvertently locked. Is not always necessary, and when the trouble of inputting the password at the time of locking is omitted, the hole 16b need not be provided. In other words, depending on the application,
Whether or not to provide the hole 16b can be selected. Further, the power supply means 3 may not be of a type for inputting a personal identification number, but may be of a type that can be unlocked by passing a card-type key through a magnetic reader.

[0030]

Since the present invention has the configuration as described above, it has the following effects. By providing the emergency unlocking device according to the present invention in an electronic lock used for fixtures such as a safe, when the security code for unlocking the electronic lock is forgotten when the door is locked, or when the security code is set. If the electronic lock control device is broken or the security code set by the battery runs out, the emergency unlocking device will not be destroyed without destroying the body or door of the fixtures such as a safe. Can be rationally unlocked using a key from outside the door. Further, the energizing means
Supplies power to the electromagnetic solenoid and its control device.
Battery box for storing batteries to be
A pond cover and the keyhole of the cylinder lock
Install it on the bottom of the box, remove the battery cover,
When the battery is removed from the pond box, the cylinder lock
Since the keyhole came to be exposed, usually this keyhole,
The battery to be mounted in the battery box is concealed, and the
The pond cover will cover and remove the battery cover
Even if it is possible, there is only an ordinary battery under it
Without doubting the existence of the keyhole below it,
Battery, remove the battery from the bottom of the battery box.
Always pay attention, and if you find a keyhole,
I don't know if it was provided for any purpose.
The cylinder lock can be turned without a key
It does not come, even the safety of the safe is guaranteed.

Further, the release piece is rotated around an axis extending substantially perpendicularly to the longitudinal direction of the movable core, so that the movable core is pushed into the movable core in a state in which it comes into contact with the distal end surface of the movable core. Having an inclined surface, and having a configuration in which the surface that engages with the movable iron core of the engaging member is located in the direction of movement of the inclined surface, by the emergency unlocking device,
When disengaging the barb from the main body by operating the handle after the movable iron core of the electromagnetic solenoid is immersed,
Since the engagement member does not interfere with the release piece and does not engage with the movable iron core, it can be moved smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a safe.

FIG. 2 is a perspective view showing a state where a safe door is opened.

FIG. 3 is a perspective view showing a locking mechanism and an emergency unlocking mechanism according to the first embodiment.

FIG. 4 is an operation diagram showing an operation of the emergency unlocking mechanism according to the first embodiment.

FIG. 5 is an operation diagram showing details of an operation of the emergency unlocking mechanism according to the first embodiment.

FIG. 6 is an exploded view showing an energizing means.

FIG. 7 is a perspective view showing an emergency unlocking mechanism according to a second embodiment.

FIG. 8 is an operation diagram showing details of an operation of the emergency unlocking mechanism according to the second embodiment.

FIG. 9 is a view showing another example of the emergency unlocking mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Door 3 Energizing means 4 Handle part 12 Bar piece 16 Engaging member 16a Locking part 17 Electromagnetic solenoid 18 Release piece 18a Inclined surface 19 Movable core 20 Rotation axis of release piece 28 Iron core fixture 29 Cylinder lock

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-204481 (JP, A) JP-A-58-181764 (JP, U) JP-A-4-8677 (JP, U) JP-A-4-204 73185 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05B 47/00 E05B 47/06 E05B 65/02 E05G 1/04

Claims (3)

(57) [Claims] 1. A bar which is provided on the back of a door of a fixture such as a safe, and which can be detachably operated on the body of the fixture, and which is fixed to the back of the door. An electromagnetic solenoid in which the movable core is immersed, an engaging member that is interlocked with the bar, engages with the movable core when the bar is engaged with the furniture body, and is fixed to the movable core in a protruding state, and a door surface. provided with a conductive member to the electromagnetic solenoid and placed on the door surface, the electronic lock used for fixtures safe or the like which is composed of a handle portion in conjunction with the閂片, the
The power supply means supplies electric power to the electromagnetic solenoid and its control device.
Battery box for accommodating batteries for supplying
And a battery cover box, and release piece operative to pushing the movable iron core, and placed in the door, constituted by a cylinder lock in which the rotating portion is linked to the release pieces,該Shi
Set the keyhole of the locker on the bottom of the battery box,
Remove the battery cover and remove the batteries from the battery box.
When removed, the keyhole of the cylinder lock is exposed
An emergency unlocking device for an electronic lock. 2. The movable iron core pushes the movable iron core in a state in which the release piece rotates around an axis extending in a direction substantially perpendicular to the longitudinal direction of the movable iron core. The emergency unlocking device for an electronic lock according to claim 1, wherein the emergency unlocking device according to claim 1, wherein the emergency unlocking device has an inclined surface to be inserted, and a surface that engages with the movable iron core of the engaging member is located in a moving direction of the inclined surface. 3. The movable iron core of the electromagnetic solenoid has a middle position.
The E-ring is fitted into the
Pressed and protruding, immersed against spring when energized
, Restricting the movable core from moving in and out and fixing it
The core fixture for the centering screw on the electromagnetic solenoid
And the angle of rotation
The movable core and E are fixed to the fixing portion of the core fixing device.
A notch that engages the ring is provided, and in a normal state,
Make sure that the notch does not engage the armature,
When the main body is rotated so that the hinge side of
The iron fixture is rotated by its own weight, and the notch is
3. The device according to claim 1, wherein the device is set to engage with the heart.
Emergency unlocking device for electronic locks.