JP2003184386A - Crime preventive connection tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crime preventive connection tool with a simple structure for enhancing crime preventive effect against robbery or the like by making it difficult to cut off an opening and closing door from a body by an edge tool in the state that they are connected to each other. <P>SOLUTION: The crime preventive connection tool is provided with a cable- like body for covering the surface of a wire rope intertwisting a plurality of strands with a resin, a cable-like body crimping and fixing a caulking cylinder on the terminal of the wire rope, and a rotatable ring coupled to the caulking cylinder with a pin. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crime prevention connector, for example, a connector used as an auxiliary connecting means such as a cylinder lock which is a main connecting device between a main body of an automatic vending machine and an opening / closing door.

[0002]

2. Description of the Related Art Vending machines are widely used as unmanned selling means for all kinds of products related to daily life. Such a vending machine has a main body and an opening / closing door, and the opening / closing door is opened only when necessary for loading products, collecting sales proceeds, repairing troubles, and the like. The door and the main body are usually locked with a cylinder lock, but since many products are loaded in the main body and the sales proceeds are stored, they are connected as an auxiliary crime prevention means as shown in FIG. Vending machine body 9a and opening / closing door 9b with tool A
Even if the cylinder lock is destroyed, the door will not be opened immediately. Conventionally, a chain a has been generally used as a strip forming a main part of the connecting tool A, and both ends thereof are respectively connected to the open / close door 9b and the main body 9a.

[0003]

Although the chain a is low in cost and easy to handle such as adjustment of the length, it is constructed by sequentially combining elliptical rings, and the ring material generally has a carbon content. Since it is a low carbon steel of about 0.3 wt%,
With a tool such as a bolt clipper, it can be cut in a short time of about 10 seconds.

For this reason, it cannot be said that the conventional connecting device has sufficiently exerted the function of crime prevention, and even if the staff member rushes to receive the signal from the alarm provided in the vending machine, the cylinder lock is already present. There were constant accidents where the car was destroyed and the hardware and goods inside the body were stolen. Further, although the surface of the chain is plated, it is always exposed to the outside air and easily corroded, so that there is a problem that the appearance is impaired and the strength is reduced.

The present invention has been made to solve the above problems, and its purpose is to prevent cutting by a blade when the door and the main body are connected,
An object of the present invention is to provide a crime prevention connector having a simple structure capable of enhancing the crime prevention effect against theft and the like.

[0006]

In order to achieve the above object, the present invention provides a cable-shaped body in which the surface of a wire rope in which a plurality of strands are twisted is resin-coated, and a caulking tube is crimped and fixed to the end of the wire rope. And a rotatable ring connected to the caulking cylinder with a pin.

In the wire rope, it is preferable that the wires constituting the wire rope have corrosion resistant plating such as zinc or a zinc aluminum alloy, and the swivel ring is caulked to prevent the pin from being cut off from the outside. It is preferable to have a skirt portion extending to the outer circumference of the end portion of the cylinder. Also, the pin
It is preferable that the caulking cylinder is fixed to the caulking cylinder by plastic deformation when the crimping is fixed to the wire rope end.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an example in which the crime prevention connector according to the present invention is applied to a vending machine. Reference numeral 1 is a crime prevention door connector, and 9 is a vending machine. The vending machine 9 has a main body 9a and an opening / closing door 9b, one side of which is pivotally attached to the front side of the main body 9a, and a U-shaped metal fitting 91 for attaching a later-described universal ring of this device is attached to a side surface of the main body 9a. is there. The U-shaped metal fitting 91 has a threaded leg portion inside the main body, and is firmly fixed by a nut (not shown).

On the front side of the opening / closing door 9b, in addition to the main cylinder lock 92 that locks the opening / closing door 9b so as not to be opened from the main body 9a, a U-shaped metal fitting 93 with a cylinder lock 94 is provided.
Is attached. At least one leg of the U-shaped metal fitting 93 can be opened by inserting a key into the cylinder lock 94 and rotating the key.

2 to 4 show the details of the first embodiment of the crime prevention connector 1. As shown in FIG. This crime prevention connection tool 1 has a cable-shaped main body 2 and rotatable rings 3 and 3 at both ends. The cable-shaped main body 2 is crimped to the end of a wire rope 4 whose outer periphery is covered with synthetic resin. 5 is fixed by crimping. 6 is a synthetic resin coating layer. The cable-shaped body 2 is
A bending portion 20 is provided at a substantially intermediate portion so that the main body 9a and the opening / closing door 9b can be easily connected in correspondence with the arrangement of the U-shaped metal fittings 91 and 93.

The wire rope 4 contains carbon of 0.6 to
A large number of high-strength steel wires (hereinafter referred to as steel element wires) 400 containing 1.2 wt% are twisted into a plurality of strands 40, and each steel element wire 400 is galvanized on the surface. Corrosion resistant plating such as or zinc aluminum alloy plating is applied.

In this example, the wire rope 4 is IWRC.
6 strands 40 having a Fi (29) structure are formed by twisting together steel strands having large and small diameters around a single rope-shaped core 41 having a 7 × 7 configuration. The diameter of each steel wire used for the rope-shaped core 41 and the strand 40 is such that when the cable-shaped main body 2 is cut with a cutting tool such as a bolt clipper, each wire is displaced by the pressure from the cutting blade. In order to easily deform the strand 40 into a substantially elliptical shape, the diameter of the wire rope 4 is 1
/ 5 or less, preferably 1/10 or less is desirable.

The synthetic resin coating layer 6 is made of polyethylene resin,
Vinyl resin, polyester resin, urethane resin, etc.
Select in consideration of adhesiveness with the wire rope 4, weather resistance, etc. The synthetic resin coating layer 6 is usually formed by applying a molten resin to the surface of the wire rope 4 using an apparatus such as an extruder. The thickness of the coating layer 6 is 0.5 to 2.0 mm
The degree is desirable. This is because if it is too thin, the effect as a protective layer is poor and it easily breaks, and if it is thick, it tends to crack when the cable-shaped body 2 is bent, and the cost also increases.

The caulking cylinder 5 is made of ordinary steel and has a bottomed shape, and a female screw 500 for screwing the coupling pin 7 is provided at the center of the bottom portion 50. A space 51 for crimping the end portion of the wire rope 4 is provided from the bottom portion 50 into which the end of the wire rope 4 is fitted, and is subjected to plastic deformation by applying a radial compression force of, for example, 50 tons with a hydraulic press or the like. By doing so, it is integrated with the end of the wire rope 4.

The rotatable ring 3 is made of hardened steel in order to increase the cutting strength, and the seat portion 30 is integrally formed with a U-shaped connecting portion 31 that intersects with the U-shaped metal fittings 91 and 93. Has been done. An insertion hole 300 for loosely inserting the pin 7 is provided at the center of the seat portion 30.

The pin 7 is made of hardened steel to enhance the cutting strength, and the caulking cylinder 5 is inserted through the insertion hole 300.
The male screw portion 71 is firmly fastened to the female screw 500 of the bottom portion 50. After connecting the rotatable ring 3 to the caulking cylinder 5 so as to be rotatable relative to each other, the pin 7 is intentionally rotated so as not to be pulled out. As a means,
Preferably, before the crimping cylinder 5 is crimped to the end of the wire rope 4 to be integrated, the rotatable ring 3 is joined with the pin 7 with the crimping cylinder 5, and in this state, the crimping cylinder 5 is attached to the wire rope 4. By crimping to the end portion, the female screw 500 of the caulking cylinder bottom portion 50 is plastically flowed to the male screw portion 71 of the pin 7 by plastic deformation at that time to bond or adhere to each other, making relative rotation impossible. Alternatively, for example, after screwing, the corners may be intentionally removed so that the peripheral surface of the head portion 70 has a circular contour.

FIG. 5 shows a second embodiment of the crime prevention connector of the present invention. In this embodiment, the seat portion 30 of the rotatable ring 3 has a skirt portion 301 that encloses a required region of the caulking cylinder 5. Since other configurations are the same as those in the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

The present invention is not limited to the above embodiment. 1) The wire rope 4 is not limited to the one shown in FIG. 3, but one having a high filling rate of steel material in the cross section, for example, a structural formula of 7 × 7 + 6 × Ws (36), which has various structural examples, is adopted. sell. 2) The rotatable ring 3 may be provided only on one end of the cable-shaped body 2, and the other end is directly connected to the ring and the caulking cylinder 5 so as not to rotate relative to each other, or integrated. May be. 3) The bending of the cable-shaped main body may be performed at the stage of the caulking cylinder or the wire rope 4 before being integrated with the rotatable ring, or after that.

[0019]

The operation of the crime prevention connector 1 of the present invention will be described. The rotatable ring 3 at one end is a vending machine 9
The U-shaped metal fitting 91 of the main body 9a of the
The leg portions of the V-shaped metal fitting 91 are firmly fixed by being inserted into the main body 9a and screwed with a nut or the like. Therefore, one terminal of the crime prevention connector 1 is always connected to the main body 9a.

The rotatable ring 3 of the other terminal of the crime prevention door connector 1 is separated from the opening / closing door 9b of the vending machine 9. To close the opening / closing door 9b for crime prevention, the cylinder lock 94 is keyed. Is inserted and rotated to project at least one leg free end of the U-shaped metal fitting 93 to the outside so as to be opened. Then, the rotatable ring 3 of the crime prevention connector 1 is brought into contact with the free end of the leg, and the U-shaped metal fitting 93 is pushed in to lock the leg.
After that, even if the main cylinder lock 92 is broken or picked to open the opening / closing door 9b, the main body 9a and the opening / closing door 9 can be opened.
Since b is connected by the crime prevention connector 1, the opening / closing door 9b cannot be opened unless the crime prevention door connector 1 is cut.

Since the crime prevention connector 1 is composed of the wire rope 4 in which a plurality of strands 40 obtained by twisting the high-strength steel wire 400 are twisted together, it is attempted to cut it by using a cutting tool such as a bolt clipper. In this case, each strand of wire 400 is displaced by the pressure from the cutting blade, the strand 40 is deformed into a substantially elliptical shape, the contact surface between the cutting blade and the wire rope 4 is enlarged, and the cutting pressure is dispersed. That is, the cutting resistance is increased 100 times or more as compared with the conventional chain. For this reason, it becomes difficult to cut, and even if it is finally cut, it takes a long time.

Even if the caulking cylinder 5 is to be removed,
Since it is plastically deformed and integrated with the wire rope 4, it is almost impossible. When the pin 7 is rotated to separate the rotatable ring 3 and the caulking cylinder 5, the pin 7 is simply swaged.
Not only the pin 7 is screwed in, but also the screw engaging portion is pressed or adhered with the caulking of the caulking cylinder 5, so that the pin 7 cannot be rotated or pulled out. Therefore, it is possible to surely prevent the opening / closing door 9b from opening.

Each steel strand 400 constituting the wire rope 4
Has a corrosion-resistant plating, so it has a corrosion resistance effect that is at least twice as high as that of a wire rope using unplated wire in the atmosphere, and has a synthetic resin coating layer 6 on the surface of the wire rope 4. Therefore, the corrosion resistance is further improved (corrosion resistance is 10 times or more compared to the conventional chain type)
However, even if it is placed in an exposed environment for a long time, the strength does not decrease due to corrosion. Further, the synthetic resin coating layer 6 serves as a cushioning material for contact with the vending machine 9, does not scratch the surface of the vending machine, and can be covered with a colored resin so that it is not conspicuous. Is possible. In addition, since the cable-shaped main body 2 has a bent portion in the middle, the resilience against bending peculiar to the rope is absorbed,
The main body 9a of the vending machine 9 and the opening / closing door 9b are well adapted to the corner shape, and the connecting operation can be easily performed.

In the case of the second embodiment, in addition to the operation described above, since the skirt portion 301 of the rotatable ring 3 surrounds the main portion of the caulking cylinder 5, the rotatable ring 3 and the caulking cylinder 5 are surrounded. The shaft portion of the pin 7 for connecting the pin 7 is hidden, and the cutting blade of the bolt clipper cannot be inserted even if the shaft portion of the pin 7 is to be cut in the radial direction. Therefore, it is possible to more completely prevent the crime prevention door connector 1 from being cut.

The present invention is not limited to the connection of the main body of the vending machine and the opening / closing door, and it is desired to prevent the opening of doors by persons other than those concerned, such as a storage box for valuables or antiques, a doorway of a warehouse, or a doorway of a store. It can be applied to various types of equipment, structures, and buildings.

Specific examples of the crime prevention connector 1 of the present invention are as follows. (Specific example 1) As the wire rope 4, 7x7 + 6xFi
(29), the rope diameter used was 14 mm. For this wire rope, a high-strength steel wire having a carbon content of 0.72 wt% and a surface coated with zinc of 170 g / m ² was used.

The wire rope core (structure: 7 × 7) has three wire diameters of 0.750 mm, 0.660 mm and 0.600 mm.
Using the above types of steel strands, the strands (constitution 6xFi
(29) has a wire diameter of 1.310 mm, 0.950 mm,
Four types of the above-mentioned steel strands of 0.370 mm and 0.810 mm were used. The wire rope was obtained by extruding polyethylene resin with an excluder to continuously coat the material rope to a thickness of 1.0 mm, and cut it into a required unit length of 150 mm.

Separately, a length of 35 m made of ordinary steel
m Caulking tube and a hardened steel rotatable ring are prepared. A bolted pin made of hardened steel is inserted into the rotatable ring and screwed into the caulking tube. In this assembly state, the wire rope end is caulked. It was fitted in a cylinder and uniformly pressed with a hydraulic press at a pressure of 50 t. Then, the wire rope was pressed by a hydraulic press with a substantially central portion thereof as a fulcrum so as to be shaped substantially at a right angle to obtain a crime prevention connector.

As a result of performing a cutting experiment with a bolt clipper using the above-mentioned crime prevention connector as an auxiliary connector between a main body of an automatic vending machine and an opening / closing door, it was found that 12
Although it was cut in seconds, it took 1,200 seconds to connect the doors of the present invention, and a very high crime prevention effect of 100 times or more compared to the conventional chain was obtained. This is because high-strength steel wire is used for each wire of the wire rope, and each wire of the wire rope is displaced by the cutting blade pressure of the bolt clipper and deformed into a substantially elliptical shape, and the touching surface between the cutting blade and the wire rope. Is spread and the cutting pressure is dispersed.

(Specific Example 2) As a wire rope, 7 × 7
+ 6xWs (36) configuration, rope diameter is 16mm and length 3
The one of 00 mm was used. The strand has a carbon content of 0.8
0wt% of high strength steel wire, the adhesion amount on the surface is 160g / m
^The one which was galvanized in No. ² was used.

The wire rope core (7 × 7) has a wire diameter of 0.
860 mm, 0.750 mm, 0.690 mm, three types, the strand (6xWs (36)), the wire diameter is 1.0
60 mm, 0.760 mm, 0.570 mm, 0.74
There are 5 types of 0 mm and 0.920 mm. The resin coating layer is formed by extrusion of polyethylene resin, and the coating thickness is 1.
It was set to 0 mm.

As a result of a cutting experiment using a bolt criper of this connecting tool, it was confirmed that it took 1,500 seconds and that the crime prevention effect was very high.

[0033]

According to claim 1 of the present invention described above, a cable-shaped body in which the surface of a wire rope in which a plurality of strands are twisted is coated with a resin, and a caulking tube is crimped and fixed to the end of the wire rope, Since it has a rotatable ring joined to the crimping cylinder with a pin, even when trying to cut with a bolt clipper, each wire of the wire rope is displaced by the cutting blade pressure and deformed into a substantially elliptical shape, The contact surface with the wire rope is enlarged and the cutting pressure is dispersed, so that it is possible to obtain 100 times or more cutting resistance as compared with the conventional chain, and thus the crime prevention effect can be dramatically enhanced. In addition, since the surface of the wire rope is coated with resin, contact with the outside air is restricted and corrosion resistance is increased, and it also serves as a cushioning material for contact with the object, without scratching the surface of the object. Since it can be coated with a colored resin, excellent effects such as making it inconspicuous can be obtained.

According to the second aspect, since the steel wire constituting the strand has corrosion resistant plating such as zinc plating,
Combined with the resin coating, the excellent effect of maintaining excellent corrosion resistance and cutting resistance for a long period of time can be obtained. According to the third aspect, since the rotatable ring has the skirt portion that surrounds the end region of the caulking cylinder, it is possible to obtain an excellent effect that it is possible to prevent intentional cutting of the pin shaft. . According to claim 4,
Since the pin is fixed to the caulking cylinder by plastic deformation of the caulking cylinder when crimping and fixing it to the wire rope end, it is not possible to rotate the pin to separate the cable-shaped body from the rotatable ring Since a pin having a different structure is not required and the wire rope ends are simultaneously processed at the time of caulking, an excellent effect that the cost can be reduced can be obtained. Further, the cable is shaped almost at a right angle, which makes it easy to install in a vending machine.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of use of a crime prevention connector of the present invention.

FIG. 2 is a partially cutaway side view showing the first embodiment of the crime prevention connector of the present invention.

3 is an enlarged cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a partially cutaway perspective view showing an engagement between a rotatable ring and a caulking cylinder.

FIG. 5 is a partially cutaway side view showing a second embodiment of the present invention.

FIG. 6 is an enlarged cross-sectional view showing another example of the cable-shaped main body.

FIG. 7 is a perspective view showing a usage example of a conventional crime prevention connector.

[Explanation of symbols]

1 crime prevention connector 2 Cable-shaped body 3 rotatable ring 4 wire rope 5 caulking cylinder 6 Synthetic resin coating layer 7 pin 9 vending machines 9a body 9b open / close door

Claims (4)

[Claims] 1. A cable-shaped body in which the surface of a wire rope in which a plurality of strands are twisted is coated with a resin, and a caulking tube is crimped and fixed to the end of the wire rope, and a rotatable ring connected to the caulking tube with a pin. A crime prevention door connector characterized by being provided. 2. The crime prevention connector according to claim 1, wherein the wires constituting the wire rope are corrosion-resistant plated. 3. The crime prevention connector according to claim 1, wherein the rotatable ring has a skirt portion which surrounds an end region of the caulking cylinder. 4. The crime prevention connector according to claim 1, wherein the pin is fixed to the caulking cylinder by plastic deformation of the caulking cylinder when crimping and fixing to the wire rope end.