Patent ID: 7585169
Filing Date: 2009-09-08
Classification: A44B,B29C,B29L

Abstract:
1. A device for producing an extruded pin strip in a thermoplastic material having a strip and at least one pin protruding from the strip, the at least one pin extending from the strip to a tip and having a cross section decreasing from the strip toward the tip, the device comprising: a sheet die for extruding a sheet of the thermoplastic material having a thickness; a forming roller, said forming roller having an outer surface and a layer of rubber at said outer surface with at least one pinhole formed therein by laser etching, said at least one pinhole having a shape substantially complementary to a shape of the at least one pin, said at least one pinhole being a blind hole; and a pressure and smoothing roller disposed at a nip distance from said forming roller, said rollers and said sheet die causing the thermoplastic material sheet to be fed to the nip between said rollers, and said nip distance being less than said thickness of the sheet.