COMPRESSION INDENTATION FASTENER DEVICE

摘要

An enlarged head fastener device and method for manufacturing the same is described. The enlarged head fastener device includes a shank and a head. The head extends outwardly from the shank in a transverse plane to define a head periphery. The head has an anterior side and a posterior side. The anterior side includes a bearing surface and a convergent transition portion that reinforces the head. The convergent transition portion extends between a large end adjacent the bearing surface to a small end adjacent the shank. At least one ridge formation projects from the anterior side of the head providing additional reinforcement. The ridge formation extends continuously between an outboard end positioned on the anterior side of the head adjacent the head periphery and an inboard end positioned on the shank. The head may be centered or offset relative to the shank.

主权项

1. A compression indentation fastener device comprising:
a shank extending along a shank axis and between a first end and a second end; a head disposed at said second end of said shank, said head extending outwardly from said second end of said shank in a transverse plane that is substantially perpendicular to said shank axis to define a head periphery; said head having an anterior side adjacent said second end of said shank and a posterior side opposite said anterior side, said anterior side of said head including an exposed area arranged to impact a first surface of a substrate material, said exposed area extending between said second end of said shank and said head periphery; and said anterior side of said head including a relief portion disposed between said shank and said head periphery, wherein said relief portion is a depression that extends continuously about said second end of said shank and that is open at said anterior side of said head to receive a volume of the substrate material when said exposed area of said anterior side of said head impacts the first surface of the substrate material.