Title:
金属穿孔ファスナー
Document Type and Number:
Japanese Patent JP3939552
Kind Code:
B2
Abstract:
A metal piercing fastener for securing a light gauge sheet metal layer to metal/non-metal substrate layer(s) includes an elongated metal body having a crown at one end a sharpened and hardened tip at the other end defining a rigid metal penetrating region. The crown receives an impact blow from a tool for driving the rigid metal penetrating tip region in the substrates to be fastened. The metal body is equipped with one or more resilient tines each twisted at the base around its longitudinal axis and which can be integral or coupled to the metal body to optimize the gripping and clamping capability of the metal piercing fastener. The resilient tine may be equipped with protruding gripping and clamping elements on each side or with ribs on one of its outer surfaces to provide spring action gripping and clamping capability during fastening. The resilient tine is capable of deflection to conform to the physical constraints of the pierced substrate opening when passing through the pierced opening. The resilient tine is also capable of returning to its factory preset state of orientation when no longer constrained within the pierced substrate opening so as to grip and clamp the substrate layers being fastened between itself and the crown of the fastener.
Inventors:
Farrell, Mark A
Farrell, Michael Yee
Farrell, Michael Yee
Application Number:
JP2001540061A
Publication Date:
July 04, 2007
Filing Date:
November 29, 2000
Export Citation:
Assignee:
Evening Star Investments LLC
International Classes:
F16B15/00; F16B15/02; F16B15/04; F16B15/06; F16B15/08
Domestic Patent References:
| JP51114551A | ||||
| JP57054714U | ||||
| JP50079664A | ||||
| JP50017657U | ||||
| JP48103774U | ||||
| JP51085510U | ||||
| JP5066311U | ||||
| JP61099709U |
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Ryo Hashimoto
Toshio Shirane
Sadao Muramatsu
Ryo Hashimoto
Toshio Shirane