JPS5813003Y2 - lock - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lock incorporating an electronic lock that is durable and whose key is difficult to duplicate.

In the embodiment shown in the drawings, reference numeral 1 denotes a cylindrical main body, with a thread 2 cut along the entire length of the outer peripheral surface, and a shallow dish-shaped flange 4 connected to the front end to round the outer periphery. Mounting plate 5
Insert the screw into the hole drilled in the hole, place the collar 4 against the mounting plate, and
The body is fixed to the mounting plate 5 by tightening the nut 3 that is screwed into the body.

6 is a backing plate with two protrusions 7, 7 driven into the back surface of the mounting plate 5. Cut both sides 9, 9 of the through hole 8 straight and align them with the flat parts 2a, 2a at By tightening this backing plate with nuts 1 to 3, it serves as a means for preventing rotation of the main body 1.

10 is a circular lock plate fitted into the flange 4, with large and small notches 12 and 13 cut out on the diameter line of an annular edge 11 provided on the front side, and a round protrusion 14 provided at the center of the front side, which protrudes from the back side. The core frame 15 is rotatably fitted into the shaft hole 1a of the main body, the long cam shaft 18 is inserted into the large diameter part of the shaft hole from the rear side, and the core frame 15 is inserted into the shaft hole 1a of the main body with the pin 18 driven from the horizontal hole 17 of the main body. Frame 15 and camshaft 16
Connect concentrically.

Reference numeral 20 denotes a rectangular cam plate whose square hole at its base end is fitted into the tail end of the cam shaft 16 and fixed with a pin 19.

A coil-shaped return spring 21 is wound around the front end of the camshaft 16, and is housed in the enlarged part 1b of the shaft hole of the main body.
a into the elongated notch 1C of the shaft hole, and insert the bent part 2 at the rear end.
1b is hooked onto the pin 22 driven into the camshaft 16.

The return spring 21 moves the camshaft 16 approximately 90° in the unlocking direction.
The camshaft 16 is set to be fully wound when turned, thereby regulating the rotation angle of the camshaft 16 to approximately 90°, and the restoring force of the wound return spring 21 causes the camshaft 16 to reverse.

Three blind holes 23 are bored at the vertices of an isosceles triangle on the same circumference of the front end surface of the main body 1, a spring 24 and a short magnet 25 are inserted into each blind hole, and the tip of the magnet 25 is attached to the lock plate 10. The magnet engages the lock plate 10 with the main body 1 to prevent rotation of the lock plate and change the direction of the north and south poles of the three magnets. This makes a key difference.

Reference numeral 27 is a long and thin paper-like key, with both ends sized to fit into the large and small notches 12 and 13 cut in the annular edge of the lock plate 10, with a receiving hole 28 in the center for receiving the protrusion 14 of the lock plate, and a hole 28 inside the main body. Magnets 30 are embedded in three blind holes 29 facing the three magnets 25, and projections 32 of a grid-shaped grip 31 are driven into the blind holes to integrally connect the key 27 and the grip 31.

One embodiment of the present invention has the above configuration, and as shown in the figure, three
When the magnets 25 enter the recesses 26 of the lock plate, the lock plate 10 is prevented from rotating by the magnets 25 and remains locked.

When trying to open the lock, hold the grip 31 and insert it into the key hole 28.
is aligned with the protrusion 14 of the lock plate, and both ends of the key 27 are stored in the notches 12 and 13 of the annular edge of the lock plate.

If this key is a predetermined one, the three magnets 30 embedded in the key will repel each magnet 25 in the main body, and the magnet will move out of the recess 26 of the lock plate against the spring 24. The lock plate 10 is released from the main body 1 by the magnet 25 and becomes rotatable.

Then, when the grip 31 is turned, the key 27 housed in the notches 12 and 13 of the annular edge turns the lock plate 10, and the core frame 15 of the lock plate rotates the cam plate 20 via the ram shaft 16, so that the key 27 is opened. Can be locked.

When an electronic lock is unlocked and the key is removed, the lock plate can rotate freely, so if the lock plate is not returned to the locked position, there is a risk of unauthorized unlocking.

In this embodiment, a coil-shaped return spring 2 is attached to the camshaft 16.
1 is wound and a return spring is wound in when the lock is unlocked so that the camshaft 16 is reversed by the restoring force of the return spring, so when the key 27 is unlocked and the key 27 is removed, the camshaft 16 will move the lock. The plate 10 is always reversed.

As a result, the magnet 25 inside the main body enters the recess 26 of the lock plate,
Since the lock plate 10 is engaged with the main body 1 to prevent rotation of the lock plate, unauthorized unlocking can be reliably prevented.

Furthermore, since the rotation angle of the camshaft 16 can be regulated by fully winding the return spring 21, there is no need to provide a pin and a guide groove as in the conventional case.

Generally, keys for electronic locks are made in the shape of a disk and have a grip at right angles, making them bulky and inconvenient to store.

In this embodiment, large and small notches are provided in the annular edge of the lock plate, and the elongated base paper-like key is inserted into the cutout, so that a key that is not bulky can be made.

In this embodiment, a long cam shaft 16 is connected to the core frame 15 of the lock plate, and this fixes the main body 1 to the upper mounting plate of the pachinko game machine, and the end of the cam plate 20 is connected to the lock of the glass frame with a chino. It is connected to a stop mechanism and assembled for pachinko play.

The present invention is not limited to this embodiment, and the design can be changed within the gist of the invention. For example, the main body 1 may be shortened, and the core frame 1 may be shortened.
If the camshaft 16 is omitted by making the camshaft 5 protrude and a latch is attached to the protruding end of the core frame, it can be used as a locker lock.
The numbers of 5 and 30 can be increased or decreased as appropriate.

In addition, a latch lock can be constructed using the present invention. In this case, a guide groove is provided on the back of the main body, a push spring and a pawl piece are inserted, and a step at the rear end of the core frame is inserted into the notch of the pawl piece. The toe is moved in and out of the main body by rotating the core frame.

According to the present invention, in a lock incorporating an electronic lock that locks by engaging the main body and the lock plate with a magnet, a coil-shaped return spring is wound around the camshaft or core frame to be wound when unlocking. When the lock is unlocked and the key is removed, the lock plate is always reversed and the magnet inside the main body enters the recess in the lock plate, preventing rotation of the lock plate and reliably preventing unauthorized unlocking. This return spring regulates the rotation angle of the lock plate, so the pin and guide groove for regulating the rotation angle can be omitted, and the annular edge of the lock plate is provided with large and small notches to create an elongated paper-like key. It has the advantage that it is possible to make keys that are not bulky because the key is inserted into the key.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view of an embodiment of the present invention, Fig. 2 is a front view of the lock plate, Fig. 3 is a front view of the key, and Fig. 4 is a sectional view taken along line A-A in Fig. 1. It is. In addition, 1 is the main body, 1a is the shaft hole, 1b is the expanded part, 4
is a flange, 10 is a lock plate, 11 is an annular edge, 12 and 13 are notches, 15 is a core frame, 16 is a cam shaft, 20 is a cam plate, 21 is a return spring, 23 is a blind hole, 24 is a spring, 25 26 is a recess, 27 is a key, 30 is a magnet, and 31 is a grip.

Claims (1)

[Scope of utility model registration request] A shallow dish-shaped flange is provided at the front end of the cylindrical body, a circular lock plate with an annular edge is fitted into the flange of the body, and a core frame coming out from the back of the lock plate is loosely fitted into the shaft hole of the body. A coil-shaped return spring is wound around the camshaft connected to the core frame or the core frame itself, and this return spring is housed in the enlarged part of the shaft hole of the main body. Drill several blind holes and insert the spring and magnet, insert the tip of each magnet into the recess drilled on the back of the lock plate, make large and small notches on the diameter line of the annular edge of the lock plate, and insert the key. A lock characterized in that it is made into a long and thin paper-like shape, the ends of which are placed in notches in an annular edge, a magnet that repulses the magnet inside the main body is embedded in the key, and a grip is provided on the back of the key.