The security barrier "Piranha" – Russian Federation patent №93316

Usage: for the construction of protective safety barriers to prevent unauthorized penetration of sensitive sites.

Essence: barbed tape is made of a metal strip (blank) comprises a central portion and a large number of elements, formed integrally with it. Elements located along the central area of the tape are uniformly shifted by half the striking element on each side of the central portion. Each striking member is in the form of an equilateral triangle with straight sides directed perpendicularly from the central portion, with the top-wave. Acute each of the prongs is the angle between the sides of the triangle. The triangle may have as curved outward so inwardly concave sides. Triangles may have on one side of the central portion of one size, and the second – the other. Triangles with one side of the central portion may also have different sizes. Barbed strip may be made of twisted about the longitudinal axis of the tape. Barbed tape can be made wavy or entourage into a spiral. Elements, triangles can be bent away from the plane of the central portion in one direction, and in different directions.

Technical advantages: increasing the barrier properties; non-waste production; extension of the scope.

The invention relates to hardware production, and more specifically, to the production of barbed tape used as safety barriers designed to prevent unauthorized penetration of sensitive sites. A method for manufacturing barbed tape comprising that the tape punch, along the axis of symmetry, the perforations grooves which fix stellate shafts inserted in the slots tape angle oriented in the opposite direction from others, and a side the other corners of the tape is folded around the cleat rolled and, between the grooves, twist around its longitudinal axis [see the copyright certificate USSR №519256 class B21F 25/00 issued in 25.06.1976].

The main disadvantage of this method includes the complexity of manufacturing the product, its high cost and unreliability of the stud affixing positions in the tape.

There also exist serrated tape, which is derived from a metal strip, comprising a central portion and a large number of opposite pairs of elements integrally formed with it, each element of the pair of elements is provided with first and second external prongs, third and fourth internal prongs formed by punched in the tape oval slots [see the USA Patent №4887796 class B21F 25/00 published on 19.12.1989].

The main disadvantages of the given serrated tape is its lack of humanity – its external shape of the prongs promotes deposition of serious wounds and injuries, and the relatively large distance between the axis of symmetry of the adjacent pair of elements, does not provide sufficient effect of retaining fragments of clothing and body intruder. The tape has a high cost due to the fact that it is made from stainless steel, the processing which needs a lot of energy, as well as in the manufacture of this tape is increased wear and punching property. In addition, metal cutting at its stamping irrational, because of the specific form of external and internal prongs that generate more waste metal.

The closest in its essence and attainable effect, taken as a prototype, is the barbed tape obtained from a metal strip, comprising a central portion and a large number of opposing pairs of elements, integrity formed with it, and a pair of elements are located along the central portion of the tape evenly and each striking member in a pair consists of a base and opposing prongs formed on the outer sides of the element, and the tips of each of the prongs are angles formed between the outer side and sides element, wherein between the sides of elements adjacent pair of element is formed inside the wide space , outside a limited sharp prongs of these elements [see the Patent of Ukraine №41834 class B21F 25/00 published in 24.04.2001].

The main disadvantage of the known barbed tape is that with its help it is impossible to build reliable barrier due to insufficient barrier properties of the barbed tape. The presence of this lack is explained as follows. Sharp prongs elements directed along the central portion of the tape, since they are located on the outer sides of the striking element. This spatial orientation of the prongs does not prevent an attacker to grab the hand of the tape, in particular, cover the striking element and pull or bend the tape in either direction. When this palm does not experience any injury due to the fact that the striking elements missing prongs which would be directed at least at some angle to the longitudinal axis of the tape, i.e. the outer side elements lacks any tapered elements located there.

Another essential disadvantage of the known barbed tape is inefficient use of the model material (the metal strip) by the formation of metal waste during punching in the strip a large number of opposing pairs of damaging elements to form a wide internal space in which the tip directed prongs. Such waste reaches 30% of the metal blank.

The basis of the utility model is the task of improving the protective properties of the barbed tape and efficiency of the model material by reorienting the spatial arrangement of the prongs due to changes in the design of elements.

The solution of this problem is achieved by the fact that barbed tape is manufactured from a metal strip (blank), and comprising a central portion and a large number of elements, integrity formed with it, according to the proposal, the elements are located along the central portion of the tape is uniformly shifted by half elements with respect to each side of the central portion, and also one arresting element is formed as an equilateral triangle with straight sides directed perpendicularly from the central portion, with the top-wave, and each of the tips of the prongs is the angle between the sides of the triangle.

• The triangle may have either curved concave outward so inward sides.
• Triangles may have on one side of the central portion of one size, and in the second have the other.
• Adjacent triangles at one side of the central portion may also have different sizes.
• Barbed tape can be made both flat and twisted relative to the longitudinal axis of the belt.
• Barbed tape can be configured as straight or wavy, or entourage into a spiral.
• Adjacent triangle can be bent from the plane of the central portion in one direction, and in different directions.

As the tip of prongs elements are directed perpendicular to the central portion of the barbed tape, for it is impossible to grasp without injured palm that is impossible to bend the tape or pull in any direction, and in this way to form a free passage through the protective barrier.

The social impact of the proposed use of a utility model is in comparison with the prototype, obtained by increasing the reliability of protected objects, and expanding the range of such objects. Economical effect of the proposed utility model use, in comparison with the prototype is prepared by the savings due to the use of metal waste technology, and reduces the cost of the barbed tape by simplifying the equipment, and because of this – their value.

After the description the above mentioned barbed tape "Piranha" specialists in the given area will be apparent that all of the above is merely illustrative, and do not limit, having been presented by this example. Numerous modifications and other embodiments of the elements barbed tape, in particular, their size and shape may vary in different ratios and constructively and understood within the scope of one of ordinary and natural approaches in the art knowledge and treated such that it is within the scope of this technical solution.

The quintessence of the proposed technical solution is that of the central portion of the tape depart triangular elements, prongs which are not parallel to the axis of the belt, and perpendicular to, and they can be bent in any direction, and even a screw, and that this fact allows you to purchase tape listed and other advantages. Fabrication, modification and use of only certain elements of the tape other naturally limits the range of the benefits listed above, and cannot be considered as new technical solutions in the field of knowledge, as more similar to that described implementation of barbed tape does not require any creativity of designers and engineers, and therefore cannot be considered the results of their creative activity and new intellectual property, protection of the relevant enforcement documents.

Useful model formula

1. Barbed tape manufactured from a metal band (model), comprising a central portion and a large quantity of elements, integrally formed with it, characterized in that the elements are arranged along the central area of the belt is uniformly shifted by half the striking element on each side of the central section and each striking member is in the form of an isosceles triangle with straight sides directed perpendicularly from the central portion to the apex of the tooth, and the tips of the prongs of each is the angle between the sides of the triangle.
2. The barbed tape according to claim 1, characterized in that the triangle is curved outwardly or inwardly concave sides.
3. The barbed tape according to claim 1, characterized in that the triangles have one side of the central portion of one size, and the second.
4. The barbed tape according to claim 1, characterized in that the triangles with one side of the central portion have a different resolution.
5. The barbed tape according to claim 1, characterized in that the formed twisted about the longitudinal axis of the belt.
6. The barbed tape according to claim 1, characterized in that the formed wavelike or wound in a spiral.
7. The barbed tape according to claim 1, characterized in that the elements-triangles formed bent from the plane of the central portion in the same direction or in different directions.