MEJORAS EN LOS PROCEDIMIENTOS DE FABRICACION CONTINUA DE E- LEMENTOS MONOBLOQUES AUTOFIJABLES.

摘要

The invention relates to a method of manufacturing a fastener device by extrusion of a thermoplastic material through a shaped drawplate. The extruded strip includes a plurality of rows of longitudinal ribs connected at their bases by legs integral therewith at one end and connected at their edges to two contiguous longitudinally extending flat zones. The ribs are cut throughout their height and then the strip is stretched providing spaced apart ribs and openings in the base of the strip. The tops of the ribs are enlarged and are of greater width than the width of the openings thus providing a plurality of male and female connecting elements on the same strip.