초록 ▼

A mechanical fastener. A preferred embodiment of the invention provides a mechanical fastener including engaging stems having heads with demarcation lines. The present invention also provides a method of making a mechanical fastener that includes placing a layer of heated material on stem ends to so

A mechanical fastener. A preferred embodiment of the invention provides a mechanical fastener including engaging stems having heads with demarcation lines. The present invention also provides a method of making a mechanical fastener that includes placing a layer of heated material on stem ends to soften the stem ends and deforming the softened stem ends into convex heads.

대표청구항 ▼

1. A mechanical fastener, comprising:a) a substrate including a first major surface; and b) a plurality of engaging stems extending from said first major surface of said substrate, wherein each of said engaging stems includes a convex head, wherein each of said convex heads includes a first portion

1. A mechanical fastener, comprising:a) a substrate including a first major surface; and b) a plurality of engaging stems extending from said first major surface of said substrate, wherein each of said engaging stems includes a convex head, wherein each of said convex heads includes a first portion at the top of said head and a second portion at the bottom of said head, and wherein said first portion of said head is smoother than said second portion of said head, wherein each of said heads includes a demarcation line, and wherein said demarcation line is the boundary between said first portion of said head and said second portion of said head.