Miniature tack pins

摘要

A fastener pin has a head at a topmost end that is the greatest diameter of the fastener. A shoulder extends downward from the head and includes a bottom surface for displacing material of a host object. A broaching section of rectangular lateral cross-section is located immediately below the displacer by cutting a rectangular profile into a round installation hole in the host object. Immediately below the broaching section is a tapered tip at a bottommost end which may be in the shape of a rectangular pyramid rotated radially out of alignment with the remainder of the other fastener features which all have parallel side edges. This individual fastener is one of a series of substantially identical pins attached toe-to-head at severable joints in a continuous string of fasteners.

主权项

1. An elongated strip of fastener pins connected toe-to-head at severable joints between them, comprising:
a series of severably attached miniature fastener pins, each individual fastener adapted for forcible insertion into a host material, and comprising, a head of greatest lateral dimension of the fastener at a topmost end adapted for securing a top sheet to the host material adjacent a first severable joint; a shoulder adjacent said head including a displacer portion at the bottom for displacing host material; an undercut immediately adjacent said shoulder for receiving the host material displaced by said shoulder to affix said fastener to the host material; a shank adapted for engagement with said host material; and a tapered tip at a bottommost toe end adjacent a second severable joint.