JPH0810141Y2 - Emergency unlocking mechanism - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an emergency unlocking mechanism used in the event of a power failure in a locker or the like that uses an electric lock.

[Conventional technology]

Some lockers used to store luggage use electric locks as locking devices. If an electric lock is used, a personal identification number can be input to a control unit equipped with a ten-key pad to lock and unlock the key, thereby eliminating the hassle of carrying the key.

[Problems to be solved by the device]

However, in the event of a power failure or failure, such an electric lock cannot be operated at all.

The present invention has been made in view of the above facts, and an object of the present invention is to provide an emergency unlocking mechanism that can emergency unlock the locker when the electric lock cannot be operated and can wait in the locked state after unlocking.

[Means for solving the problem]

To achieve the above object, the emergency unlocking mechanism of the present invention includes a latch that can be engaged with and disengaged from a door, a moving member that is biased to a locked position that locks the latch in an engaged state, and an electrical signal that causes the latch to move. A locking device that includes a latching solenoid that moves a moving member in an unlocking direction and that holds the moving member in a locking position and an unlocking position, wherein the moving member is provided with a locking portion, and the locking device is provided in the locking device. The cylinder lock is provided with a pushing portion that pushes the locking portion when the cylinder lock is unlocked, and the moving member pushes the latch to a position where the latching state is released by the pushing portion. When the latching solenoid further moves in the unlocking position direction from the releasing position, it is held in the unlocking position.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a locker as an example of use of the electric lock device. A storage chamber 1a is formed in the locker 1 above and below,
A door 2 is attached to each. The door 2 is opened and closed by a handle 3, and a hook 4 provided on the back surface of the door 2 is locked by being engaged with an electric lock device 5 provided on the locker body side. 6 is a cylinder lock for emergency unlocking. Reference numeral 7 is a light emitting device for notifying whether or not luggage is stored in the locker, and when the door 2 is closed, it overlaps with the transparent lamp lens 8,
Notify the lighting of the light emitter 7 to the outside. Reference numeral 9 denotes an operation unit having a numeric keypad, etc. The locker 1 normally locks and unlocks by inputting a personal identification number into the numeric keypad.

Next, an example of the electric lock device 5 will be described with reference to FIGS. The electric lock device 5 includes a latching solenoid 11 having a plunger as a moving member 10, a latch 13 rotatably supported by a shaft 12, a locking position for restricting the rotation of the latch 13, and a latch 13. It is composed of a latch stopper 14 for advancing and retracting between an unlocked position that allows the pivot to freely rotate, a hook 4 attached to the door 2, and the like. The latching solenoid 11 is energized bidirectionally for a certain period of time from a power source (not shown). Depending on the direction of this energization, the moving member 10
Moves to the moving end of the locking position in the protruding state shown in FIG. 4 (a) and the moving end of the unlocking position in the sucked state shown in FIG. 5 (a), and moves to the moving end of the unlocking position. Moving member that reached
The moving member 10 that has reached the moving end at the locking position is held in the protruding state by the spring 10 'even after the end of energization, even after the end of energization.

Next, the operation of the electric lock device 5 will be described. In the locked state, as shown in FIGS. 4 (a) and 4 (b), the hook 4 of the door 2 is fitted in the concave groove 13a of the latch 13. And the door 2
Are attracted by the magnet 18 attached to the rocker 1. A latch spring 13 'is provided on the shaft 12 to bias the latch 13 toward the door 2. for that reason,
Although not shown, a slight gap is formed between the latch 13 and the latch stopper 14.

To unlock, the personal identification number is input to the ten-key pad of the operation unit 9 shown in FIG. Thereby, the latching solenoid 11
Is energized in the suction direction, the moving member 10 is sucked up to the moving end at the unlocking position shown in FIG. 5 (a), and is held at the moving end even after the end of energization. Along with the movement of the moving member 10, the latch stopper 14 also descends downward in the drawing, and the latch 13 becomes rotatable about the shaft 12 and unlocked. When the handle 3 is grasped and the door 2 is opened against the attraction force of the magnet 18, the latch 13 rotates as shown in FIG. 5 (b) to release the engagement with the hook 4.

When the door 2 is closed, the hook 4 engages with the recessed groove 13a of the latch to rotate the latch 13 to the position shown in FIG. 4 (b). The door 2 is attached to the locker 1 by the magnet 18. At this time, a detection switch (not shown) detects the closing of the door 2 and energizes the latching solenoid 11 in the protruding direction for a certain period of time.
The moving member 10 protrudes and moves to the locking position, and is held at the moving end by the biasing force of the spring even after the completion of energization. The latch stopper 14 is also locked by protruding to the position shown in FIG.

Next, the emergency unlocking device will be described with reference to FIGS. The emergency unlocking device is configured by adding the following to the electric locking device 5 described above. That is, the locking portion 15 provided in series with the moving member 10, the pushing portion 17 that comes into contact with and separates from the locking portion 15, the tongue 16 that fixes the pushing portion 17, and the cylinder lock 6 having the tongue 16. is there.

The operation of the embodiment of the present invention will be described. In the locked state, as shown in FIG. 3, the moving member 10 is in the protruding locked position. At this time, set the position of the tip of the latch stopper 14 to 14
and the position of the locking portion 15 is 15a.

When the unlocking instruction is given, the latching solenoid 11 is energized for a certain time in the suction direction, the moving member 10 is sucked and moves to the moving end of the unlocking position, and the latch stopper 14 is lowered to the position where the tip is 14c. , The locking portion 15 is lowered to the position of 15c. In the case of locking, the operation is as described with reference to FIGS. 4 and 5 above.

Cylinder lock 6 to unlock in the event of a power failure or failure
Insert the key into and rotate the tongue 16 to the 16 'position. The pushing part 17 rotates to the position 17 ', and the locking part 15
To 15b. Along with this, the latch stopper 1
4 is a position for releasing the engagement from the position 14a for engaging the latch 13
Move to 14b.

The position 14b for releasing the engagement is before the position 14c of the latch stopper 14 when the moving member 10 is held at the unlocked position, and is a position where the moving member 10 can return to the locked position. As a result, the electric lock is unlocked and the door 2 is opened.

After the emergency check, etc. are completed, the door 2 is closed and the cylinder lock 6
Key to return to the position of tongue 16. When the tongue 16 returns, the locking portion 15 is released from the pushing portion 17 and the moving member 10
Is urged in the locking direction by the spring 10 ', the locking portion 15 returns to the locking position 15a, the latch stopper 14 also returns to 14a, and returns to the locked state. The above steps unlock and lock in an emergency.

In the above operation, the moving distance h of the pushing portion 17 by the cylinder lock 6 is the same as the moving distance h of the latch stopper 14. On the other hand, the moving distances of both when acting as an electric lock are both H. And, it is necessary that the relation of H> h is established between them. If h> H, the latching solenoid 11 holds the moving member 10 in the locking position because the locking portion 15 exceeds the position of 15c by an emergency operation, and the tongue is returned from 16 'to 16'. Also the locking part
This is because 15 cannot return to 15a and cannot be locked.

However, if a normal solenoid is used instead of the latching solenoid 11, it is not necessary to satisfy the relationship of H> h. This is because the moving member 10 can immediately return to the projecting direction by the spring 10 'when the solenoid is de-energized.

Further, even when many accommodation chambers 1a are formed, the cylinder lock 6 can be operated with the same key.

[Effect of device]

As described above, according to the present invention, in the electric lock, the locking portion formed on the moving member, the pushing portion that abuts on the locking portion and moves the moving member, and the pushing portion. It is possible to obtain an emergency unlocking device for an electric lock with a relatively simple structure provided with a cylinder lock having a tongue fixed thereto.

[Brief description of drawings]

1 is a perspective view of a locker used in the emergency unlocking device, FIG. 2 is a top view showing the configuration of the emergency unlocking device, FIG. 3 is a view of FIG. 2A, and FIG. 4 is an electric lock. In the drawing of the device, (a) is a front view, (b) is a cross-sectional view taken along the line BB of (a), FIG. 5 is a view of the electric lock device in an unlocked state, (a) is a front view,
(B) is a sectional view taken along the line CC of (a). 5 ... Electric lock device, 6 ... Cylinder lock, 10 ... Moving member, 15 ... Locking part, 16 ... Tongue, 17 ... Pushing part.

Claims (1)

[Scope of utility model registration request] 1. A latch that can be engaged with and disengaged from a door, a movable member that can move between a locked position that locks the latch in an engaged state and an unlocked position that releases the latch, and the movement by an electric signal. A locking device provided with a latching solenoid that moves a member to a locking position and an unlocking position and holds the moving member at a moving end of the unlocking position, wherein the moving member is provided with a locking portion, and the locking device is provided. The cylinder lock is provided with a pushing portion that pushes the locking portion in the unlocking direction by the unlocking operation of the cylinder lock, and the position where the moving member is pushed by the pushing portion is the latch of the latch. Within the unlocked position for releasing the engaged state,
Further, the emergency unlocking mechanism is characterized in that the latching solenoid is at a position where it does not reach the moving end.