JP2000199362A - Theft preventing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a theft preventing device to lose a will of theft of a thief to open a door by using a chain which cannot be cut by a manual strong cutting toil, composing a fixed part of a lock device in such a way that it cannot be easily broken, and elongating the time required for opening the door. SOLUTION: This theft preventing device is for a vending machine A or the like for preventing the opening of a door by a chain 11 by locking a lock device 12 to which the chain 11 is coupled. In this case, the lock device comprises a lock main body formed as a block using rigid material, and a lock mechanism assembled inside the lock main body 13, an end part ring of the chain 11 is inserted into a horizontal hole in the lock main body 13, a lock shaft of the lock mechanism penetrates the ring to hold it to be prevented from removal, and as it is locked, the chain 11 makes it difficult to open the door of the vending machine A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-theft device for preventing the door from being opened even if the lock of the door is broken in a vending machine, a garage, a factory, or the like.

[0002]

2. Description of the Related Art For example, a vending machine stores not only a product to be sold, but also a large amount of change and sales money. Crimes stealing money from vending machines have increased in recent years. This theft is generally accomplished by breaking the door lock and opening the door.

Also, an expensive electronic control device is incorporated in a vending machine, and this electronic control device is often destroyed during theft for money items, which is larger than theft of money items. You will suffer economic damage.

[0004] In order to deal with such crimes, anti-theft devices such as vending machines have been proposed which prevent the door from being opened even if the lock on the door is broken.

As shown in FIG. 10, a conventional anti-theft device comprises a chain 1 of a predetermined length, a lock device 2 for removably connecting one end of the chain 1, and a lock 1 for connecting the other end of the chain 1 to the other end. The lock device 2 is fixed to the door a of the vending machine A and the mounting member 3 is fixed to the side surface of the main body b of the vending machine A, and the lock device 2 to which the chain 1 is connected is locked. This prevents the chain 1 from opening the door.

[0006]

By the way, the above-described conventional antitheft device uses a chain 1 in which a ring using a stainless steel wire having a diameter of about 8 mm is connected. It can be cut using a powerful manual cutting tool, and the strength is insufficient to prevent the door from opening.

Further, the lock device 2 has an insertion hole into which a part of the end ring of the chain 1 is freely inserted and removed, above the lock body 4 formed in a rectangular block shape to be bolted to the vending machine A. 5 is provided, and a lock shaft that engages with and disengages from the ring inserted into the insertion hole 5 and a locking mechanism that moves the lock shaft up and down by a key operation are incorporated in the lock body 4. By inserting a bur or the like into a portion of the end ring protruding from the lock body 4 and prying it, a strong destructive force can be concentrated on a fixing portion of the lock body 4 to the vending machine A, whereby the lock body 4 can be concentrated. Of the vending machine A is broken, and the lock body 4 falls off, so that the door can be opened.

Incidentally, it is said that in order to prevent theft by opening the vending machine A, it is necessary to allow the opening of the vending machine A to take 3 minutes or more. This is because performing suspicious work outdoors for more than three minutes increases the risk of being noticeable, and the thief does not attempt to open the door until such danger is violated. An anti-theft device cannot satisfy such a condition.

[0009] Therefore, an object of the present invention is to use a chain that cannot be cut even by a powerful cutting tool of a manual type, to prevent the fixed portion of the lock device from being easily broken, and to reduce the time required for opening the door. It is an object of the present invention to provide an anti-theft device capable of eliminating theft caused by opening a thief by opening the door.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is to provide a chain having a predetermined length, a lock device for detachably connecting one end of the chain, and the chain. A lock member and a mounting member fixed to the side of the door and the main body, respectively, and the chain lock prevents the door from being opened by locking the chain lock device. In the prevention device, the lock device has a lock body formed in a block shape using a hard material, and a lock mechanism incorporated in the lock body, and the lock body is opened on one side of the lock body. And a horizontal hole having a depth substantially corresponding to the entire length of the ring located at the end of the chain, and located on one side of the lock body above and below the open end of the horizontal hole, and positioned second from the end of the chain. A concave groove into which the end of the ring to be fitted fits, and the horizontal hole facing upward from the lower surface of the lock body. An intersecting lock storage hole, wherein the lock mechanism has a lock shaft that can be inserted into and removed from the ring inserted into the horizontal hole, and can be moved up and down by operating a key in the lock storage hole of the lock body. It is stored, the entire length is immersed in the lock body at the ascending position, locking by the key is possible, and the lock shaft penetrates the ring inserted in the horizontal hole and holds it in a retaining shape, and the lock body at the lowered position Of the lock shaft is partly protruded from the lower surface of the lock ring so that the lock shaft comes off the ring.

[0011]

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

As shown in FIG. 1, the anti-theft device of the present invention comprises a chain 11 having a predetermined length, a lock device 12 for removably connecting one end of the chain 11, and another end of the chain 11. The locking device 12 is fixed to the door a of the vending machine A, and the mounting members 30 are fixed to the side surfaces of the main body b of the vending machine A, respectively. When the chain 11 is connected to the locking device 12 and locked, the chain 11 is bridged between the locking device 12 and the mounting member 30 in a state without slack. Is kept in a state where the door cannot be opened.

The chain 11 is formed to have a predetermined length by connecting a number of elliptical rings using a stainless steel wire having a diameter of 13 mm.
No. 1 cannot be cut by a powerful manual cutting tool.

The lock device 12 includes a lock body 13 fixed to the door a, and a lock mechanism 14 incorporated inside the lock body 13.
As shown in FIGS. 2 to 5, the lock body 13 is formed in a vertically long block shape using a hard material such as an aluminum alloy, various metals, and synthetic resins. The upper, both side surfaces and the lower surface are each formed in a circular arc surface, and are formed to have an outer shape capable of efficiently releasing and buffering the impact of an external impact, and a flat rear surface overlapping the door of the lock body 13. A plurality of screw holes 15 for attachment are provided. Further, the lock body 13 is opened at a position closer to the upper side of one side surface of the lock body 13, and the entire length of a ring 11 a located at an end of the chain 11 is set. A horizontal hole 16 having a depth that can be substantially accommodated;
The ring 1 located on one side of the lock body 13 above and below the open end of the horizontal hole 16 and located second from the end of the chain 11
1b is fitted with a concave groove 17 and a lock storage hole 18 which is directed upward from the lower surface of the lock body 13 and intersects with the horizontal hole 16.
Are provided.

FIGS. 2A to 2D show the structure of the lock body 13 before the lock mechanism 14 is incorporated. The lock body 13 has a height H of 116 mm, a width W of 73 mm, and a depth L. Is formed to have a size of 60 mm.

The lock housing hole 18 of the lock main body 13 is formed in two stages of a large-diameter hole 18a in the lower half and a small-diameter hole 18b in the upper half. As shown in FIGS. 3, 4, and 6, a cylindrical casing 19 accommodated in the large-diameter hole 18a so as to be vertically movable.
And a lock 21 incorporated in the casing 19 and rotatable by 90 ° by a key 20 which can be freely inserted and removed, and an extended shape fixed to the upper end of the lock 21 so as to rotate integrally with the lock 21. And a lock shaft 22 having a circular axis shape to be inserted into the small-diameter hole 18b.

An axial groove 23 is formed on the outer surface of the casing 19, and the tip of a screw 24 screwed from the back side of the lock body 13 fits into the groove 23.
Numeral 9 is a detent, and can move up and down within the range of the groove 23. As shown in FIG. 3, the entire length is immersed in the lock body 13 at the ascending position, and as shown in FIG. And protrudes from the lower surface of the lock body 13.

The lock shaft 22 has an annular groove 25 at its lower end and an axial longitudinal groove 26 whose lower end communicates with the annular groove 25. The key 20 inserted into the lock 21 When the lock shaft 22 integrated therewith is rotated, the vertical groove 26 is displaced to either an extended position with respect to the concave groove 23 of the casing 19 or a position perpendicular to the concave groove 23. I do.

When the casing 19 is in the raised position (the state shown in FIG. 3), the lock body 1 is positioned immediately above the screw 24.
When the vertical groove 26 is at a position perpendicular to the concave groove 23 of the casing 19, the casing 19 is in the raised position. The lock 21 is held and cannot be rotated and moved up and down. In contrast, the lock 21 and the lock shaft 22 integrated therewith are locked.
Is rotatable, and the key 20 inserted into the lock 21 is used to lock the lock 21 and the lock shaft 22 integrated therewith.
Is rotated so that the vertical groove 26 is in an extended position with respect to the concave groove 23 of the casing 19, the vertical groove 26 faces the screw 27, and the concave groove 23 of the casing 19 and the lock shaft 22
The vertical groove 26 extends along the screws 24 and 27, and the lock body 21, the lock shaft 22 and the casing 19 integrated therewith can be lowered to the lowered position via the key 20.

Although the details of the lock body 21 are not shown, when the vertical groove 26 is at a position perpendicular to the concave groove 23 of the casing 19 at the raised position of the casing 19, the casing 1
The lock 21 is locked to enable the lock 21 to be fixed to the lock 9 and the key 20 can be removed. When the key 20 is inserted in the locked state, the lock is unlocked, and the lock 21 is integrated with the lock 21 via the key 20. The structure is such that the lock shaft 22 can be turned by 90 ° and the key 20 does not come off in the unlocked state.

As described above, if the lock mechanism 14 is housed in the lock body 13 in the locked state, it becomes difficult to break the lock mechanism 14 and, at the time of unlocking, the casing 19 is connected to the lock body 13.
Of the lock body 14 in the casing 19 can be repaired and parts can be exchanged without removing the lock mechanism 14 from the lock body 13, which is convenient.

The lock shaft 22 has, for example, a diameter of 1.
The lock shaft 22, which is made of stainless steel of about 8 mm and has excellent strength, and which is inserted into and removed from the ring 11a inserted into the horizontal hole 16, holds the ring 11a inserted into the horizontal hole 16 when in the raised position. It penetrates and is held in a retaining shape, and comes out of the ring 11a at the lowered position.

As shown in FIGS. 7 to 9, the mounting member 30 for connecting the other end of the chain 11 is made of a hard material such as an aluminum alloy, various metals, and synthetic resin, for example, with a diameter of 90 m.
m, and is fixed to the side surface of the main body b of the vending machine A with a bolt 32 inserted from the top side into a stepped hole 31 penetrating the center thereof and a nut 34 screwed to the bolt 32. And a chain 11 is attached to the mounting member 30.
A horizontal hole 33 for inserting the ring 11c at the other end is provided so as to intersect with the stepped hole 31.
If the bolt 32 is inserted into the stepped hole 31 with the 1c inserted, the bolt 32 penetrates the ring 11c, and the ring 11c is joined in a retaining shape.

Since the outer surface of the mounting member 30 is formed in a spherical shape using a hard material, it is possible to effectively release the impact due to an external impact, and is fixed using a single bolt 32. Together with the head 3 of the bolt 32
When the bolt 2 is turned from the outside, the nut 34 on the back is not loosened and cannot be removed. Can not be dropped.

The shaft of the bolt 32 is provided with a detent effect with respect to the ring 11c of the chain 11, so that if the chain 11 is gripped, the bolt 32 can be inserted from inside the vending machine. On the other hand, the nut 34 can be tightened.

The anti-theft device of the present invention is configured as described above. For example, the lock device 12 is connected to the door a of the vending machine A.
Then, it is fixed with bolts from the inner surface side of the door a, and the mounting member 30 is attached to the side of the main body b of the vending machine A by the lock device 12.
In a state where the door 11 of the vending machine A is closed and its lock is locked, the ring at the free end of the chain 11 is fixed. 11a is inserted into the horizontal hole 16 of the lock device 12, the key 20 is inserted, the lock mechanism 14 in the lowered position is pushed up and immersed in the lock body 13, and this is rotated 90 ° by the operation of the key 20 to lock the lock. When the key 20 is removed, the lock shaft 22 is connected through the ring 11 a in the horizontal hole 16, and the chain 11 is connected to the lock device 12.

In this state, even if the lock is broken and the door is to be opened, the door cannot be opened by the chain 11 stretched between the door a and the side surface of the main body b.

Since the chain 11 is formed by a ring using a stainless steel wire having a diameter of 13 mm, it cannot be cut even by using a powerful manual cutting tool. Moreover, the lock device 12 has a lock main body 13 in a hard block shape, and each corner on the outer surface is formed in a circular arc shape, so that it is difficult to break the lock device by impact.

Moreover, the ring 1 located at the end of the chain 11
1a, the entire length thereof fits in the horizontal hole 16 and the end of the ring 11b located second from the end is accommodated in the concave groove 17. Even if the fixing portion 13 is to be detached from the door a, it is not easy to effectively apply the prying force, and it is difficult to detach the lock device 12 from the door a.

Here, if the door a of the vending machine A is opened to steal the inside of the vending machine A and the antitheft device is to be destroyed, it is not absolutely impossible to destroy the antitheft device. Therefore, if the anti-theft device of the present invention is attached to the vending machine A, the thief loses the desire to open the door and can prevent theft of money. it can.

Although the antitheft device of the present invention is used in a vending machine in the drawings and the embodiments, it can be used in, for example, a garage or a factory door for improving safety.

[0032]

As described above, according to the present invention, it is difficult to detach the lock device from the door due to the shape of the lock body and the connection structure of the chain, and it is not easy to cut the chain. If you try to break the lock device, it will take a lot of time to work, and if you install the anti-theft device of this invention on vending machines, garages, and factory doors, the thief will try to open the door This makes it possible to prevent theft of money and the intrusion of a house, and when used in a vending machine, the vending machine can be installed anywhere.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vending machine to which the antitheft device of the present invention is attached.

2A and 2B show a structure of the lock body before being assembled into the lock, wherein FIG. 2A is a front view of the lock body with a side face facing the front, FIG.
(C) is a vertical front view of the same, and (D) is a vertical side view of the same along arrow d-d of (A).

FIG. 3 is a longitudinal sectional view showing a locked state in which a chain is connected to a lock device.

FIG. 4 is a longitudinal sectional view showing an unlocked state in which a chain is released from the lock device.

FIG. 5 is a bottom view of the lock device.

FIG. 6A is a longitudinal sectional front view of a lock mechanism, and FIG.

FIG. 7 is a front view of a mounting member to which chains are connected.

FIG. 8 is a cross-sectional plan view of the same fixed to a vending machine.

FIG. 9 is a longitudinal sectional side view of the above.

FIG. 10 is a perspective view of a vending machine equipped with a conventional anti-theft device.

DESCRIPTION OF SYMBOLS 11 Chain 12 Locking device 13 Lock body 14 Lock mechanism 16 Horizontal hole 17 Concave groove 18 Lock storage hole 19 Casing 20 Key 21 Lock body 22 Lock shaft 23 Concave groove 25 Annular groove 26 Vertical groove 30 Mounting member

Claims (1)

[Claims] 1. A chain having a predetermined length, a lock device for detachably connecting one end of the chain, and a mounting member for connecting the other end of the chain, wherein the lock device and the mounting member are connected to a door. An anti-theft device which is fixed to a side surface of a main body and locks a lock device to which a chain is connected to prevent the door from being opened by the chain, wherein the lock device is formed in a block shape using a hard material. And a lock mechanism incorporated inside the lock body, wherein the lock body has a horizontal hole which is open on one side of the lock body and has a depth that substantially accommodates the entire length of the ring located at the end of the chain. A groove located on one side surface of the lock body above and below the open end of the horizontal hole, into which the end of the ring positioned second from the end of the chain fits, and faces upward from the lower surface of the lock body. A lock storage hole intersecting with the horizontal hole is provided, and the lock mechanism is provided on a ring inserted into the horizontal hole. It has a lock shaft that can be inserted and removed, and is stored in the lock storage hole of the lock body so that it can be moved up and down by operating the key, and the entire length is immersed inside the lock body at the ascending position and locking with the key is possible And, the lock shaft penetrates the ring inserted into the horizontal hole and holds it in a retaining shape, and at the lowered position, a part projects from the lower surface of the lock body so that the lock shaft comes off from the ring. Theft prevention device characterized by the above-mentioned.