초록 ▼

A new and improved apparatus and process for continuously forming an intrusion detection barrier coil from a strip of barbed metal tape is provided. The apparatus includes a series of rollers for deforming the central portion of the barbed metal tape into a generally U-shaped configuration, as well

A new and improved apparatus and process for continuously forming an intrusion detection barrier coil from a strip of barbed metal tape is provided. The apparatus includes a series of rollers for deforming the central portion of the barbed metal tape into a generally U-shaped configuration, as well as a dispenser for depositing an elastomeric filler material into the U-shaped tape, and a mechanism for feeding a continuous length of vibration-sensitive electrical cable in the elongated, U-shaped tape. Thereafter, the composite assembly of U-shaped barbed tape, elastomeric and electrical cable is continuously forced through a set of opposed rollers so as to roll form the U-shaped section into a generally circular, closed configuration. The composite structure is then bent by a series of offset rollers in a generally horizontal plane to form a helical coil of intrusion detection barbed tape. The subject process is performed in a continuous manner as the strip of barbed tape is advanced through a roll forming station to define the U-shaped central portion of the tape, through the stations wherein the elastomeric filler material and vibration-sensitive cable are fed into the U-shaped central portion of the barbed tape, through the roll forming station wherein the cable and filler material are encased within the barbed tape, and through the edge bending station wherein the composite barbed tape is formed into a helical coil.

대표청구항 ▼

A method for continuously forming an intrusion detection barrier, said method comprising the steps of: providing a barbed tape having an elongated central supporting portion and a plurality of barb clusters extending unitarily therefrom; forming a longitudinally extending channel in said central sup

A method for continuously forming an intrusion detection barrier, said method comprising the steps of: providing a barbed tape having an elongated central supporting portion and a plurality of barb clusters extending unitarily therefrom; forming a longitudinally extending channel in said central supporting portion; feeding an elastomeric filler material into the channel; feeding an elastomeric filler placing an elongated vibration-sensitive cable in the channel; and forming the central supporting portion of the barbed tape around the vibration-sensitive cable and the filler material, whereby the filler material prevents accumulation of moisture between the cable and the barbed tape and enhances the transmission of vibrations to the cable, with the steps of forming the channel, feeding the filler, placing the cable in the channel and forming the central supporting portion around the cable being carried out substantially simultaneously at a plurality of spaced locations along the barbed tape.