Barbed tape with sensor conductor and reinforcement wire |
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申请号 | EP09159951.4 | 申请日 | 2009-05-11 | 公开(公告)号 | EP2251116B1 | 公开(公告)日 | 2011-12-14 |
申请人 | Kösedag Tel Örme Sanayi Ve Ticaret Ithalat Ihracat A.S.; | 发明人 | Kösedag, Ali; | ||||
摘要 | |||||||
权利要求 | |||||||
说明书全文 | The present invention relates to a fencing system of the type having signal conducting properties, the system having improved mechanical strength. A plurality of patents/patent applications is present in the present field in relation to fencing systems. One such application is The fencing system of The present invention on the other hand proposes a fencing system having interconnected elements such that each element comprises, additional to a conventional sensor conductor, a reinforcing member imparting substantially increased mechanical strength properties to the overall fencing system. To this end, the present invention features a fencing element designed to incorporate an inner reinforcing wire extending all along the sensor conductor. Disposing a bulky support wire alongside an electrical and/or optical conductor to be crimped such that an outer casing with an open round or rounded section bounding a cavity enclosing said support wire together with said electrical and/or optical conductor poses manufacturing problems as said reinforcement wire might damage said conductor wire during crimping process. Therefore, the present invention further provides a method for manufacturing a fencing system having interconnected elements comprised of conductor wires and reinforcement wires wherein said wires are crimped in the manner that damage to said conductor wires by said reinforcement wires during crimping is prevented. The present invention further provides a fencing system with improved mechanical strength also having sharp barbs in the form of conventional barbed tapes provided with pointed and/or cutting barbs and transversely folded around the interconnected tubular elements. One of the objects of the present invention is to provide a fencing system having interconnected elements comprised of longitudinally extending conductor wires and reinforcement wires with a substantially increased mechanical strength against cutting so as to deter intruders. Another object of the present invention is to provide a fencing system having interconnected tubular elements comprised of longitudinally extending conductor wires and reinforcement wires crimped such that damage to said conductor wires by said reinforcement wires during crimping process is prevented. The present invention provides a fencing system having interconnected tubular elements comprised of longitudinally extending conductor wires and reinforcement wires. Said conductor wires are conventionally disposed in an outer casing's cavity with an open round or rounded section. Said outer casing is formed by a crimping process such that said conductor wires are reinforced by parallelly extending reinforcement wires, the latter wires being disposed in a separate partition of the longitudinal inner volume of said outer casing. Said partition assigned to said reinforcement wires provides that said reinforcement wires does not damage said conductor wires during the final stage of crimping process in which barbed tapes with pointed and/or cutting barbs are transversely folded around the interconnected tubular elements. Accompanying drawings are given solely for the purpose of exemplifying the advantages over the prior art outlined above;
Referring now to the figures outlined above, the present invention provides a fencing system (11) comprising inter-connected fencing elements (12), each element (12) with a reinforcement wire (13) and a conventional sensor wire (14). Electrical conductors insulated by a first layer of insulating material and by a second layer of a vibration sensitive electrical coaxial cable are practiced in the art. A conductor wire (14) according to the present invention may be comprised of conventional optical fibers, connected to a warning system responsive to any breakage and/or variation of conduction capability of said conductors. Each inter-connected fencing element (12) according to the present invention may be provided with conventional barbed tapes (15). Said fencing elements (12) are provided with an outer casing (16) with an open round or rounded section (17) bounding a cavity (22) enclosing said support wire (13) together with said sensor conductor (14). The outer casing (16) according to the present invention is provided in the form of a two-cell structure, each cell (18, 20) enclosing reinforcement (13) or conductor wires (14). Said outer casing (16) is crimped to have the form of a longitudinal opening (19) around which barbed tapes (15) longitudinally extend in an equally spaced manner along said fencing element (12) as in This is especially advantageous during the final step of the crimping process in which barbed tapes (15) are cut and transversely folded over the fencing element (12) by pressing down from the folded edge portions (21) in the direction of the arrows B as in Presence of a steel support wire (13) within the fencing element (12) substantially contributes to the mechanical strength of the fencing system. The present invention therefore eliminates manufacturing problems associated with any strengthening attempt in an effort to use more robust materials within the fencing element (12). More precisely, installing a separate steel wire (13) within the casing (16) being very much desirable up to now was only possible according to the configuration of the present invention. The outer casing (16) according to the present invention, in the form of an eight figure with an intermediary neck portion (19) having an opening whose width is smaller than the diameters of the cells (18, 20), the latter having equal surface areas, prevents said reinforcement wire (13) from exerting pressure on the conductor wire (14) during crimping. The crimping process according to the present invention comprises the steps of bending a sheet strip to form a lengthwise cavity (22) having an open end (19), disposing said sensor conductor (14) in said cavity (22) in a longitudinal manner, providing an intermediary neck portion (19) in said cavity (22) by applying lateral pressure in the direction of the arrows A as in The process of manufacturing a fencing system (11) having interconnected fencing elements (12) according to the present invention can be implemented in the form of helical wires as commonly referred to as concertina type as in The present invention therefore provides a fencing system comprising a plurality of inter-connected tubular elements (12), each element (12) representing a certain unit length to be inter-connected. The length of a tubular element (12) may depend on manufacturing needs and may vary greatly. In sum, the present invention proposes a fencing element (12) for forming a fencing system (11), said element (12) comprising a longitudinally extending outer casing (16) with a longitudinal opening (19) around which barbed tapes (15) are provided in a longitudinally spaced manner. Said casing (16) define two cells (18, 20) respectively enclosing a reinforcement wire (13) and a sensor cable (14). Said reinforcement wire (13) and said sensor cable (14) are separated by an intermediary opening in a neck portion (19) the width of said opening being smaller than the diameters of said reinforcement wire (13) and said sensor cable (14). The width of said opening is smaller than the diameters of the cells (18, 20). |