JPS5819833B2 - electronic lock - Google Patents

Description

Detailed Description of the Invention The present invention is characterized by cutting radial grooves in both the lock body and the lock plate stacked thereon, and providing an arcuate relief groove on the same side of either of the radial grooves. A part of the magnet inserted into the lock is pushed into the radial groove of the lock plate to lock it, and when the key is placed over the lock plate, the key magnet attracts the magnet of the lock body to the connection between the radial groove and the relief groove. As a result, we succeeded in developing a small, light, and durable electronic lock by making the lock plate rotatable and using a suction method to unlock the lock.3 In the embodiment shown in the drawings, 1 is the rear end of the side wall. It is a bottomed cylindrical case with a window hole 2 on the left end (left end), and is fitted into an annular receiver 3 fixed to a related member (not shown) so that the window hole 2 is aligned on the inside (left side). do.

4 is a lock body that is inserted into case 1 and combined into one body,
A dovetail-shaped longitudinal groove 5 is cut in the diametrical direction on the back end surface, and a claw piece 6 is inserted into it, and a wedge-shaped claw tip 7 is inserted into the window hole 2 by a tension spring 9 interposed between this and the groove end surface. By protruding outward and hooking it onto the receiver 3, the case 1 is prevented from being pulled out and locked, and when the notch 8 on the side (right side) of the claw piece is pushed down, the tip 7 enters the window hole 2. Immerse yourself and allow Case 1 to leave.

A round shaft hole 10 is punched in the center of the lock body 4, four radial grooves 11 are cut in the surface thereof extending in the radial direction, and short and small round rod-shaped magnets 12 are inserted one by one.

Reference numeral 13 designates a dish-shaped lock plate, which is fitted into the entrance (right end) of the case 1 and stacked on the surface of the lock body 4.Four radial grooves 14, which are the same as the radial grooves 11 of the lock body, are cut on the inner surface of this plate, and the magnet 12 is inserted into the lock plate. , and cut an arc-shaped relief groove 15 extending approximately q times from the middle of the radial groove j4 of the lock plate to the same side (clockwise in FIG. 5).

Reference numeral 16 denotes a thick core frame connected to the inner surface of the lock plate 13. The core frame 16 is inserted freely into the shaft hole 10 of the lock body, and the knock pin 17 driven into the lock body is inserted into the annular groove 18 of the core frame to prevent it from coming out. Then, the stepped surface 19 made by cutting out the lower half of the rear end is engaged with the notch 8 of the claw piece, and when the lock plate 13 is rotated, the stepped surface 19 of the core frame end engages the notch 8 of the claw piece. Push down to sink the toe 7 into the window hole 2.

20 is a circular key that is placed over the lock plate 13, and is used to open the through hole 21.
It has an opening mud grip 22, and a protrusion 23 provided on the periphery is attached to the lock plate 1.
The position of use is restricted by engaging the notch 24 on the periphery of the lock plate, and four short and small magnets 25 are embedded near the periphery at equal angles ζ, and these are inserted into the connecting part between the radial groove 14 and the escape groove 15 of the lock plate. The magnets 12 and the opposite magnetic poles facing each other and inserted into the lock body are arranged so as to face each other, and different keys are made by changing the number of magnets 12, the same magnetic poles, and the position of the relief groove 15.

One embodiment of the present invention; E. Consisting of the above structure, the case 1 is fitted into the receiver 3, the slope of the toe 7 protruding from the window hole 2 is applied to the outer edge of the receiver 3, and the lock plate 13 is pushed in with the tip of a finger. The claw piece 6 sinks into the vertical groove 5 against the spring 9 due to the slope of the tip 7,
When the window hole 2 passes through the receiver 3, the claw piece 6 is pushed by the spring 9 to protrude the claw 7, which is hooked to the rear side of the receiver 3 to prevent the case 1 from coming off the receiver. and lock it.

The magnets 12 inserted into the lock body 4 fit into both the radial grooves 11 of the lock body and the radial grooves 14 of the lock plate, and even if you try to turn the lock plate 13, each magnet 12 ... hits the side wall of the radial groove, the rotation of the lock plate 13 is prevented and the locked state is ensured.

To unlock, engage the protrusion 23 with the notch 24 and press the key 2.
0 over the lock plate 13, the magnet 12 of the lock body...
・ is attracted by the key magnet 25... and the chain line 1 in Figure 5
As shown in 2', the magnet 12 of the lock body can be moved toward the relief groove 15 because it is aligned with the connecting portion between the radial groove 14 and the relief groove 15.

Then, when the key 20 is turned, the lock plate 13 releases the magnet 12 and the groove 1
5 and rotate, and when the lock plate 13 rotates approximately 80 degrees, the 5th
As shown in the figure, the magnet 12 reaches the inner end of the relief groove 15, and the stepped surface 19 at the rear end of the core frame 16 pushes down the notch 8 of the claw piece, and the claw tip 7
into the window hole 2.

As a result, the toe 7 and the money receiver 3 are unlatched, so the case 1 is pulled out from the money receiver 3 and unlocked.

Note that during locking, the four magnets 12 are connected to the radial groove 14 and the relief groove 15.
The lock plate 13 can be rotated when all four magnets 12 are aligned with the connection part 12' unless a specified key is used, so there is no chance of unauthorized unlocking. Different keys can be created by changing the position of the relief groove 15, making it easy to create different keys.

The above describes one embodiment of the present invention, and the present invention is not limited to this embodiment, but the design can be changed within the gist of the invention, and the number of radial grooves 1 and the position of relief grooves 15 can be changed. This is optional, and the relief groove 15 may be provided in the lock body.

Alternatively, instead of the claw piece 6, a latch can be attached directly to the core frame 16 of the lock plate, or a cam plate can be attached to this core frame to transmit the movement of the lock plate 13 to the latch, and the movement of the lock plate can trigger the latch to the receiver. It may also be configured to hang.

In conventional electronic locks, the claw of the lock body fitted in the case is hooked onto the receiver, several blind holes are drilled on the surface of the lock body, a magnet and a pressure spring are inserted, and the lock plate is stacked on top of this. A part of the magnet is inserted into the small hole of the lock to lock it, and a magnet is embedded in the key so that the magnetic poles of the same sex are opposite to each other at the same position as the magnet in the lock body.When the key is placed over the lock plate, the magnetic poles The repulsion causes the magnet to slip through the small hole in the lock plate, allowing the lock to be unlocked.

In such electronic locks, the lock body is longer by the length of the push spring, and therefore heavier, and it takes time and effort to insert the small push spring.

In the present invention, radial grooves are cut in both the lock body and the lock plate, and a relief groove is provided in either of the radial grooves, so that a part of the magnet inserted into the radial groove of the lock body enters the radial groove of the lock plate. The key magnet is used to attract the magnet on the lock body to the joint between the radial groove and the relief groove, making it possible to unlock the lock.This eliminates the need for the conventional push spring for the magnet. This allows you to shorten the lock body by the length of the push spring and make it lighter. It also saves you the trouble of inserting the push spring, making it easier to assemble and making it more durable. In addition, by changing the position of the relief groove, you can easily change the key. It has many effects such as being easy to make.

[Brief explanation of the drawing]

The drawings show an embodiment of the electronic lock according to the present invention; FIG. 1 is a longitudinal sectional view of the embodiment when it is locked, FIG. 2 is a longitudinal sectional view of the embodiment when it is unlocked, and FIG. 3 is a longitudinal sectional view of the embodiment when it is unlocked. 4 is a sectional view taken along line AA in FIG. 1, FIG. 5 is a sectional view taken along line BB in FIG. 2, and FIG. 6 is a front view of the key.・In addition, 1 is the case, 4 is the lock body, 6 is the claw piece, and 7
is the toe, 8 is the notch, 9 is the tension spring, 10 is the shaft hole, 11
14 is a radial groove, 12 is a magnet, 12' is a connecting portion, 13 is a lock plate, 15 is a relief groove, 16 is a core frame, 19 is a stepped surface, 20 is a key, and 25 is a magnet.

Claims (1)

[Claims] 1. Radial grooves are cut on both the surface of the lock body inserted into the case and the inner surface of the lock plate stacked thereon, and an arc-shaped relief groove is provided on the same side of either radial groove, so that the radial groove of the lock body A part of the magnet inserted into the lock plate is inserted into the radial groove of the lock plate to lock it, and a part of the magnet inserted into the lock plate is inserted into the key that engages with the lock plate, facing the connecting part of the radial groove and the escape groove, and which is of the opposite sex to the magnet of the lock body. The magnets are embedded so that the magnetic poles face each other, and when the key is placed over the lock plate, the magnet in the key attracts the magnet in the lock body to the joint between the radial groove and the relief groove, allowing the lock plate to rotate. An electronic lock characterized by: