| 摘要 |
Object moulded in thermoplastic material in any shape having an outer surface from which protrudes at least one hook in one piece with the moulded object, in particular a hook field, the moulded object and the hook(s) having been formed by injection moulding, each hook comprising a base part and a head or hooking part protruding from the base part and being delimited by first and second lateral surfaces each extending on the outer surface of the moulded object, being separated from each other by an intermediate surface forming the edge of the hook, the curve sections, defined by the intersections of at least one of the first and/or second lateral surfaces with planes which are in parallel with the base plane from which the hook protrudes and which are at given distances h from this base plane, have a curvature which varies as a function of the distance h, the curvature of the curve section for h=0 (the base plane and said parallel plane merging) being greater than the curvature of at least one curve section for a distance h substantially corresponding to a level of the head of the hook.
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