JPH03208972A - Electric lock - Google Patents

Abstract

PURPOSE:To ensure operation of the title device by providing an electromagnetic driving device that drives a sliding lever in the axial direction of a generator and alternately makes engagement and disengagement of the lever to and from a gear and a stopper, and by providing a bolt that emerges from and retreats into a box in interlocking with the lever. CONSTITUTION:A knob 4 is turned several times under the locked condition to generate electricity with a generator 2 and electric power generated is stored in a condenser. A signal emitted from a ten-key magnetic card or the like is judged by a collating means, and when legitimacy of the signal is found, an electromagnetic driving device 16 is electrified with the electric power stored. A plunger 17, attracted by a magnet 15, is then relieved of the attraction, and is projected by the force of a spring 18, turning a lever 14 clockwise. One end 14-1 of the lever 14 then pushes a sliding lever 9 until it reaches the position described with actual lines in the attached figure, making engagement of a stopper 11 with a hole 10 of the lever 9 disengaged, and at the same time a gear on a rotary shaft 3 is engaged with a rack of the lever 9. With the knob 4 turned clockwise further, the lever 9 moves rightward, making a bolt 20 drawn into a box 1, and thereby unlocking is accomplished.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an electric lock that should be widely used in general, and particularly to an electric lock having an internal power generation function.

<0) Conventional technology Conventional electric locks are those that supply power from the outside,
There is something inside that is powered by the power of the battery.

(8) Problems to be Solved by the Invention However, the former method requires a long 14-wire connection from the external power source to the lock, which is cumbersome to construct, impairs its appearance, and renders it inoperable during a power outage.

Furthermore, since the latter stops working when the battery life runs out, countermeasures are required, and there are many practical inconveniences. The present invention improves these problems and provides an electric lock that does not require wiring and is reliable in operation.

(:) Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a gear that interlocks with the shaft of a rotary generator, a drive unit that rotates the shaft from the outside, and a gear that is connected to the gear. A sliding lever having a rack portion to be mated, a stopper that limits the movement of the sliding lever, and a stopper that moves the sliding lever in the axial direction of the generator to engage with the gear and the stopper. The present invention provides an electric lock characterized by having an electromagnetic drive unit that alternately engages and disengages the lock, and a bolt that protrudes and retracts from the housing in conjunction with a sliding lever.

(book) action The operation of the electric lock configured as described above will be explained.

In the locked state, the bolt is protruding, the sliding lever is engaged with the stop lever, and is disengaged from the gear. When the shaft of the generator is rotated by the drive unit in this state, the electric power generated by the generator is stored by a rectifier and a capacitor (not shown). When a certain amount of electric power is stored and the electric power is applied to the electromagnetic drive unit from the outside using a switch (not shown), the sliding lever moves in the axial direction of the generator, disengaging from the stopper and releasing the gear. and the racks are in mesh. When the drive unit is rotated in this state, the gear rotates and the sliding lever that engages with the gear moves, thereby retracting the bolt into the housing, allowing the lung to be opened. In the middle of this stroke, the sliding lever returns the electromagnetic drive unit to the recessed state.

To lock the door, after closing the door, turn the drive unit in the opposite direction to move the slide in the opposite direction using gears, and the bolt will accordingly protrude from the housing. When fully protruded, the electromagnetic drive section is in the recessed state, so the sliding lever automatically moves in the axial direction of the generator, disengages from the gear, and engages with the stopper to stop.

(f) Example Hereinafter, the structure of the present invention will be explained with reference to the figures.

FIG. 1 is a top view of the present invention, and FIG. 2 is a front view. 1st
In Figures 1 and 2, the rotary generator 2 attached to the outer casing 1 is a known generator based on the same principle as that widely used as a power source for bicycle lights, but with improved efficiency. The rotary shaft 3 has a knob 4 attached thereto as a drive unit that extends externally and can be manually rotated, and a gear 5 is fixed to the intermediate portion. or,
The sliding lever 9, which is slidably fitted into two guide pins 6 and 7 embedded in the housing through an elongated hole 8, has a guide pin 7 formed to be longer than the plate thickness of the sliding lever 9. It can swing to the position shown by the dotted line. Therefore, the sliding lever 9
A hole 10 provided in the hole 10 protrudes from the housing 1! par 1
1, and the gear 5 attached to the shaft 3 can be engaged and disengaged alternately. That is, in the state shown by the dotted line, the hole 10 and the stopper 11 are engaged. The rack portion 12 and the gear 5 are not engaged. Further, the lever l4, which is pivotably directed by the shaft l3, has one end 14-1.
The other end l4-2 is in contact with the plunger 17 of a self-holding solenoid type electromagnetic drive section 16 having a magneto node 15 inside. A spring 18 biases the plunger l7 in a direction opposite to the attraction force of the magnet l5. Further, 19 is a spring for pressing the sliding lever 9 in the direction of the lever 14.

The bolt 20 is slidably engaged with a pin 21, 22 provided in the housing l through an elongated hole 23, and is also fitted into a recess 25 of the sliding lever 9 with a protrusion 24, so that the sliding lever 9 is always slid. It is structured so that it is linked to the movement.

Reference numeral 26 denotes a hole provided in the housing 1 from which the bolt 20 should protrude. Further, the protrusion 27 provided on the sliding lever 9 rotates the lever 14 counterclockwise in the figure during the sliding movement, and pushes the plunger 17 against the force of the spring 18 with the other end l4-2, It is attracted by the magneto 15 and moves to return to the so-called reset state.

The operation of the electric lock configured as above will be explained.

In FIGS. 1 and 2, in the locked state, the sliding lever 9
is at the position shown by the dotted line, and the ratchet portion 12 and gear 5 are not meshed. Therefore, since the /bu 4 can rotate freely, it is rotated several times and the electric power generated by the generator 2 is stored in a capacitor via a rectifier (not shown).
Next, the signal obtained by counting the power generation pulses of a numeric keypad magnetic card or a generator is judged through a verification means, etc., and if it is OK, this accumulated power is passed through a switch circuit to the electromagnetic drive unit. energize l6.

Then, the plunger 17, which had been attracted by the magneto l5, loses its suction force and is projected by the force of the spring l8, rotating the lever clockwise. As a result, one end 14-1 of the lever 14 pushes the sliding lever 9 to the position indicated by the solid line, disengaging the hole 10 from the striker 11, and bringing the gear 5 and the rack portion 12 into a rest state. still,
In this state, since the distance between the plunger l7 and the magneto tip l5 is large, the plunger l7 will not be attracted against the force of the spring l8, so there is no need to continue energizing the electromagnetic drive unit 16. Actually 0. 005~0. Since an energization time of about 0.10 seconds is sufficient, it can be operated with extremely small electric power. When the knob 4 is rotated clockwise with the gear 5 and the rack portion l2 engaged, the sliding lever 9 moves to the right and the bolt 20 interlocked therewith is drawn into the housing 1.

In the middle of this movement, the protrusion 27 of the sliding lever 9 touches the lever 14.
Push one end 14-1 and push the other end l4-2 into plunger 17.
Push in to make it stick to the Magnenote 15 and return it to its initial state.

In this way, sin can be opened and closed at will. When locking the door next time, after closing the door, turn the knob 4 counterclockwise and move the sliding lever 9 to the left to project the bolt 20. When fully protruded, the slide lever 9 is pushed by the force of the spring 19 at the point where the hole 10 of the slide lever 9 and the stop bar 11 are aligned and returns to the position indicated by the dotted line.

This will result in the initial locked state, but since no electricity is required at this time, the electricity from the generator 2 is used only when unlocking.

If the bolt 20 is not directly subjected to a lateral force, the bolt 20 and the sliding lever 9 may be integrated into a structure without any change in the basic operation.

FIG. 3 is a front view showing the structure of another embodiment of the present invention. In FIG. 3, the bolt 31 has a hook shape,
It is rotatably attached around a shaft 32 provided in the housing l. Further, the elongated hole 33 is configured to engage with a pin 34 implanted in the sliding lever 9. The state shown by the solid line is the locked state, and the state shown by the chain line is the unlocked state. 35 is a mating metal fitting to be engaged with the hook 31. Other operations are the same as those in the embodiment shown in FIGS. 1 and 2.

The embodiment shown in FIG. 3 is particularly intended for use in sliding doors, and in the locked state, the mating metal fitting 35 is attached to the hook-shaped bolt 31.
is engaged and the door cannot be opened.

In the unlocked state shown by the chain line, the door can be opened and there are no obstructive protrusions protruding to the outside. Incidentally, the basic result is the same regardless of which of the housing 1 and the mating metal fitting 35 is attached to the door and which is attached to the stile.

(G) Effects of the Invention As is clear from the above explanation, the electric lock of the present invention has a built-in rotary generator, so there is no need for external wiring or batteries, and it always operates immediately after power is generated. Since it has a structure that allows it to operate reliably at all times, there is no need to worry about it not working due to power outages or the lifespan of the vanitory. or,
Since the shaft of the generator can be used as it is as a locking/unlocking mechanism,
Overall, the number of parts is reduced and manufacturing can be done at low cost. Furthermore, since power is required only when unlocking and not when locking, operation is simple and there is less chance of malfunction due to operational errors.

In addition, by changing only the structure of the bolt, it can be configured for both hinge-type opening/closing doors and sliding doors, and can be widely used.

As described above, the effects of the electric lock of the present invention, which has many advantages, are extremely remarkable.

[Brief explanation of drawings]

FIG. 1 is a top view showing the structure of one embodiment of the invention, FIG. 2 is a front view thereof, and FIG. 3 is a front view showing another embodiment of the invention. l... Housing 2... Generator 3... Shaft 4... Knob 5... Gears 6, 7... Guide bin 8... Elongated hole 9... Sliding lever 10... - Hole 11... Stopper 12... Rack part l3... Shaft 14... Lever 15... Magnenote 16... Electromagnetic drive unit 17... Blunger 1g, 19... Spring 20. ...Bolt 21. 22...Bin 23...Elongated hole 24...Protrusion 25...Recess 26...Hole 27...Protrusion

Claims (1)

[Claims] A gear that interlocks with the shaft of a rotary generator, a drive section that rotates the shaft from the outside, a sliding lever that has a rack that engages with the gear, and a stopper that limits the movement of the sliding lever. an electromagnetic drive unit that moves the sliding lever in the axial direction of the generator to alternately engage and disengage the gear and the stopper; An electric lock characterized by having a bolt.