JPH10151054A - Locking device and unlocking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accelerate locking and unlocking operation by locking by the operation of engaging a projection part to a hole part and unlocking by arranging an intense magnet on the opposite side of a restraining pin whose base tip part consists of a magnetic body. SOLUTION: Concerning a main body 12, an outer case 15 consists of hard plastic and a well-known sensor for preventing shoplifting is arranged in it. A circular hole part 11 is provided in the center of the part 12, insertion holes 16 and 17 are provided for the part 11 and restraining pins 18 and 19 consisting of magnetic steal are arranged for the holes 16 and 17. The front parts of the pins 18 and 19 are supported by the holes 16 and 17, the rear parts are supported by sliding holes 20 and 21 and flanges 22 and 23 are provided at an intermediate part. Within chambers on both sides of the case 5, springs 26 and 27 of elastic material one tip of which is abutted on the flanges 22 and 23 and the other tip of which is fixed to the tip parts within the chambers 24 and 25 to always energize the pins 18 and 19 in a central direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device and a lock release device suitable for a shoplifting prevention device mounted on a product or the like in order to prevent shoplifting of the product.

[0002]

2. Description of the Related Art A conventional anti-shoplifting device is equipped with a sensor for detecting magnetic fields and radio waves on products to be shoplifted, and a gate is provided at an exit portion where customers enter and exits, and detects that shoplifted products pass through the gate. To prevent shoplifting.

[0003]

However, when the above-mentioned sensors are to be attached to individual products, there is a problem that the cost is increased because the sensors are relatively expensive. Therefore, it is conceivable that the sensor is detachably attached to each product and the sensor is removed when the customer pays for the product, and in the case where the product is a rental video or the like, a case where a transparent sensor is provided for each video. In some cases, at the time of payment, a product is taken out of a case and only the product is rented, but there is a problem that the shape of the product is restricted. The present invention has been made in view of such circumstances, and is mounted and displayed on a product, and is repeatedly used by removing after paying a fee. It is an object to provide an unlocking device.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The locking device according to claim 1, wherein the locking device has a projection on one side and a hole into which the projection is fitted, and the hole has a lateral hole formed in the projection mounted on the hole. And a resilient member for urging the retaining pin in the lateral hole insertion direction, and further comprising:
At least the base end of the latch pin is made of a magnetic material,
An external strong magnet allows the hook pin to move in a direction to come out of the side hole against the elastic member. The lock release device according to claim 2, wherein the latch member has a projection, and a main body has a hole in which one side of the latch member is rotatably connected and the projection is fitted. And the main body is provided with a retaining pin that fits into a lateral hole of the protruding portion mounted on the hole, and the main body is provided with the retaining pin. An unlocking device for unlocking a lock device comprising at least a base end portion of a magnetic material, wherein the lock member includes an elastic member that urges in a side hole insertion direction,
It has a concave portion in which the main body is fitted, and a strong magnet provided in a direction in which the retaining pin of the main body fitted in the concave portion is retracted. In the locking device and the unlocking device according to claims 1 and 2, each of the protrusions has a tapered tip, and when the protrusion is inserted into the hole, the locking pin is set to the elasticity. It is preferable to press against the member and retract from the hole,
The protruding portion may be inserted in a state in which the base end of the locking pin is separated by a magnet or the like, that is, in a state where the locking pin does not protrude from the hole. Further, the hole and the lateral hole include not only holes that do not penetrate, but also holes that penetrate, dents, and the like.

[0005] The lock device according to the first aspect and the second aspect.
In the lock device used in the lock release device described above, after the protrusion is fitted into the hole, the locking pin is fitted into the lateral hole of the protrusion, so that the locked state is maintained.
And since at least the base end of the locking pin is made of a magnetic material, by arranging a strong magnet on the back,
The suction pin is sucked against the elastic member, and the locking pin is released from the side hole to release the locked state. In particular, in the lock release device according to the second aspect, a lock device is used in which a hole is formed in a main body, and a projection is formed in a latch member rotatably connected to the main body. When the part is mounted in the depression, the strong magnet provided in the depression acts to pull back the locking pin from the side hole, and the locked state is released.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a partially omitted perspective view of a lock device and a lock release device according to an embodiment of the present invention, FIG. 2 and FIG. 3 are cross-sectional views of the lock device, and FIG. 5 is a partially cutaway plan view of the unlocking device, and FIG. 6 is a view taken along the line AA in FIG.
7 and 8 are explanatory views of the operation of the lock device, FIG.
FIG. 2 is a perspective view of the lock device and the lock release device in use.

FIGS. 1 to 4 and FIGS. 7 to 9 show examples in which a lock device according to an embodiment of the present invention is applied to a shoplifting prevention device 10. FIG. The shoplifting prevention device 10 is an example of a latching member having a rectangular main body 12 having a hole 11 in the center and a protrusion 13 rotatably connected to the main body 12 and fitted into the hole 11. And a rectangular lid plate 14. Hereinafter, these will be described in detail.

The main body 12 has an outer case 15 formed of AB.
A well-known sensor (not shown) for shoplifting prevention, which is made of hard plastic such as S, polycarbonate, or polypropylene, is disposed inside. And the main body 12
Is provided with a circular hole 11 in the center. As shown in FIGS. 2 and 3, insertion holes 16 and 17 are provided at intermediate positions in the length direction of the holes 11, and the insertion holes 16 and 17 are made of steel retaining pins which are an example of a magnetic material. 18 and 19 are arranged so as to be able to advance and retreat. The outer case 15 is manufactured in an appropriately disassembled state, and has a structure in which the hook pins 18, 19 and the like are attached and finally assembled, and then joined and not disassembled. Insert the front portions of the retaining pins 18 and 19 into the insertion holes 16 and 1 respectively.
7, the rear portion is supported by sliding holes 20 and 21 so as to be able to advance and retreat, and the intermediate portion is provided with flanges 22 and 23, respectively. One end of each of the chambers 24 and 25 on both sides of the outer case 15 abuts on the flanges 22 and 23, respectively.
The other ends are provided with springs 26, 27 which are examples of elastic members fixed to the ends in the rooms 24, 25, and constantly urge the locking pins 18, 19 toward the center. In addition,
In this embodiment, the front portions of the locking pins 18 and 19 from the flanges 22 and 23 are thinner than the rear portions, but may have the same thickness. Also,
Although the tips of the locking pins 18 and 19 are respectively inclined downward, the tips may be hemispherical or conical.

As shown in FIG. 1, ribbon-shaped hooking rings 28 and 29 are provided at the rear portions of both ends of the main body 12 so as to protrude from one surface. Both ends of the hanging bars 30 and 31 are mounted, and the bases of the hanging bars 30 and 31 are provided at the end of the cover plate 14. Note that the inner diameter of the retaining rings 28 and 29 is
It is slightly larger than the thickness of 0, 31
1 is in a loosely fitted state. Also, the main body 1
A hook 32 whose center bulges outward is provided at the rear of the device 2 so that the shoplifting prevention device 10 can be hooked on, for example, a hook (not shown).

At the approximate center of the cover plate 14, a projection 13 is provided at a position corresponding to the hole 11 when the cover plate 14 is placed on the main body 12. When the protrusion 13 is inserted into the hole 11, the protrusion 13 has a lateral hole 33 into which the protruding latch pins 18 and 19 are fitted.
Is provided. The protruding portion 13 is formed of a column having a certain length, and the tip portion is chamfered with a certain tapered surface 34 as shown in FIGS. 2 and 3 so that the protruding portion 13 fits into the hole portion 11. In this case, the locking pins 18, 19 projecting from both sides are pushed back to the side. The tip of the protrusion 13 may be hemispherical or conical. It is sufficient for the side hole 33 to have an inner diameter large enough to allow the engaging pins 18 and 19 to be fitted from both sides, but it is necessary to take into account the thickness variation of the packaging paper 35 for the product sandwiched between the main body 12 and the cover plate 14. Then, a slightly larger hole may be formed, or an elongated hole may be formed in the length direction of the protruding portion 13 in some cases.

Next, the lock release device 38 of the shoplifting prevention device 10 will be described with reference to FIGS. 5, 6, and 9. FIG. The lock release device 38 includes the shoplifting prevention device 10.
Similarly, a rectangular parallelepiped case body 40 made of a hard synthetic resin material and having four rubber legs 39 attached to the bottom, and a concave portion 41 formed in the center of the front side of the case body 40 are opposed to both sides. It comprises strong magnets 42 and 43 arranged.

The recess 41 has a size such that the main body 12 of the shoplifting prevention device 10 can be just fitted therein.
When the 2 is inserted, the strong magnets 42 and 43 are arranged so as to face the base pins of the hooking pins 18 and 19 in opposite polarities. Also, strong magnet 42,
A wide U-shaped yoke 44 is arranged on the pole on the opposite side of the opposing pole of 43, and forms a magnetic path of the strong magnets 42 and 43 having opposite polarities. In this case, it is possible to form a space instead of the yoke 44, and thereby the weight of the unlocking device 38 itself can be reduced. However, magnetic poles are also formed on the backs of the strong magnets 42 and 43. As a result, unnecessary iron material is adsorbed, so that a sufficient space needs to be formed.

Next, a case will be described in which the shoplifting prevention device 10 and the lock release device 38 are applied to a packaging board 35 provided with a hanging hole 46 at the upper part as shown in FIGS. . The packaging sheet 35 is made of cardboard,
It is made of a plastic sheet or a metal plate, and has a package part 47 for accommodating commodities at the front center thereof. In a state where the projection 13 of the cover plate 14 is not fitted into the hole 11, the projection 13 is inserted into the hanging hole 46, and thereafter,
The protrusion 13 is fitted into the hole 11. As a result, the tips of the locking pins 18 and 19 are fitted into the lateral holes 33 of the protrusion 13, and the protrusion 13 holds the locked state as shown in FIG.

In this state, when the vehicle passes through a gate for preventing shoplifting while the apparatus for preventing shoplifting 10 is mounted, a sensor disposed in the apparatus 10 for preventing shoplifting is detected and the shoplifting prevention device issues an alarm. Therefore, when the main body 12 is disposed in the recess 41 of the unlocking device 38, as shown in FIG.
The end of 19 is sucked, comes out of the side hole 33 of the protruding part 13, the locked state of the protruding part 13 is released, the cover plate 14 is opened, and the shoplifting prevention device 10 can be removed from the packaging paper 35. . The removed shoplifting prevention device 10 can be used repeatedly.

Although a spring is used as the elastic member for urging the latch pin, it may be made of rubber or the like.
In the above-described embodiment, the example in which the lock device according to the embodiment of the present invention is applied to the anti-shoplifting device 10 has been described. However, the present invention is applied to a device requiring another lock mechanism. It is also possible.

[0016]

According to the first aspect of the present invention, there is provided a locking device.
As is clear from the above description, the lock release device described above is locked by a simple operation of fitting the protruding portion into the hole, and further, the base end portion is opposite to the locking pin made of a magnetic material. Since the lock is unlocked by disposing the strong magnet, the lock and unlock operations can be performed quickly.
Further, since the structure is simple, it can be manufactured at low cost.
And when this lock device is applied to the anti-shoplifting device, it can be easily installed and removed and can be easily operated.
Easy to use repeatedly.

[Brief description of the drawings]

FIG. 1 is a partially omitted perspective view of a lock device and a lock release device according to an embodiment of the present invention.

FIG. 2 is a sectional view of the lock device.

FIG. 3 is a sectional view of the lock device.

FIG. 4 is a perspective view showing a use state of the lock device.

FIG. 5 is a partially cutaway plan view of the unlocking device.

6 is a sectional view taken along the line AA in FIG.

FIG. 7 is an explanatory diagram of the operation of the lock device.

FIG. 8 is an operation explanatory view of the lock device.

FIG. 9 is a perspective view of the lock device and the unlock device in use.

[Explanation of symbols]

100 Anti-Shoplifting Device (Locking Device) 11 Hole 12 Body 13 Protrusion 14 Cover Plate (Latch) 15 Outer Case 16 Insertion Hole 17 Insertion Hole 18 Latch Pin 19 Latch Pin 20 Sliding Hole 21 Sliding Hole 22 Flange 23 Flange 24 Room 25 Room 26 Spring (elastic member) 27 Spring (elastic member) 28 Hanging ring 29 Hanging ring 30 Hanging bar 31 Hanging bar 32 Hooking tool 33 Side hole 34 Tapered surface 35 Packaging material 38 Lock release device 39 Rubber leg 40 Case body 41 Depressed part 42 Strong magnet 43 Strong magnet 44 Yoke 46 Hanging hole 47 Package part

 ──────────────────────────────────────────────────の Continuation of front page (72) Inventor Masayuki Ota 1-2-8 Yotsuya, Shinjuku-ku, Tokyo Inside Takachiho Trading Co., Ltd.

Claims (2)

[Claims] 1. A locking device having a projection on one side and a hole into which the projection is fitted, the other being formed in a lateral hole formed in the projection mounted on the hole. A hook pin to be fitted is provided,
An elastic member for urging the latch pin in the side hole insertion direction; and at least a base end of the latch pin is made of a magnetic material. Characterized in that the lock device is movable in a direction to come out of the side hole against the side wall. 2. A latching member having a projection, and a main body having a hole in which one side of the latching member is rotatably connected and into which the projection is fitted, and ,
The main body is provided with a retaining pin that fits into a lateral hole of the protrusion mounted on the hole, and the main body has an elasticity that urges the retaining pin in the lateral hole insertion direction. A lock release device for unlocking a lock device made of a magnetic material at least at a base end portion of the locking pin, wherein a depression portion into which the main body portion fits, and the depression portion And a strong magnet provided in a direction in which the locking pin of the main body fitted into the main body is retracted.