초록 ▼

A fastener comprising two articles adapted for releasable engagement. At least one of the articles comprises a backing with a non-fibrous polymeric surface bonding layer in which are bonded a plurality of U-shaped flexible resilient monofilaments of longitudinally oriented polymeric material. Each o

A fastener comprising two articles adapted for releasable engagement. At least one of the articles comprises a backing with a non-fibrous polymeric surface bonding layer in which are bonded a plurality of U-shaped flexible resilient monofilaments of longitudinally oriented polymeric material. Each of the monofilaments includes two stem portions projecting from the surface bonding layer and terminating in enlarged heads having outer cam surfaces adapted to engage the other article.

대표청구항 ▼

A fastener comprising two articles adapted for releasable engagement, each of said articles comprising: a backing comprising a uniform non-fibrous non-oriented polymeric surface bonding layer having an exposed major surface; a multiplicity of flexible resilient generally U-shaped generally identical

A fastener comprising two articles adapted for releasable engagement, each of said articles comprising: a backing comprising a uniform non-fibrous non-oriented polymeric surface bonding layer having an exposed major surface; a multiplicity of flexible resilient generally U-shaped generally identical monofilaments of longitudinally oriented polymeric material, each including: a central bight portion embedded in, bonded in, and held only by said bonding layer: two stem portions extending from the opposite ends of said bight portion and projecting generally normal to said exposed major surface of the surface bonding layer, and having unsupported ends opposite said bight portion; and an enlarged generally circular head at each unsupported end, each of the heads being generally concentric with its supporting stem portion and having a cam surface opposite its supporting stem portion adapted for engagement with the cam surface on the heads of the other article to produce side deflection of the heads upon movement of said heads toward each other with the backings of said articles generally parallel; the bight portions of said U-shaped monofilaments being disposed generally parallel with a plurality of groups of the bight portions each being disposed generally side by side to form a plurality of generally parallel rows of stem portions with said heads along and between the rows being spaced at distances which, as an average, are generally no greater than the diameter of the heads so that simultaneous movement of all the heads of the articles past each other can occur only upon resilient separation of many of said heads, with said stems being spaced apart a distance which, as an average, is at least as large as the diameter of said heads to afford positioning of the heads of each article between the stems of the other, and with the length of each stem portion from the major surface to the head on its unsupported end being at least equal to the diameter of the head to afford deflection of the stems to allow simultaneous movement of all the heads of said articles past each other at any relative angular orientation between the rows of stems of said articles.