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1. (WO2018005632) DRY-FIRE BYPASS FOR A FASTENING TOOL

Pub. No.:    WO/2018/005632    International Application No.:    PCT/US2017/039723
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Thu Jun 29 01:59:59 CEST 2017
IPC: B25C 1/04
B25C 1/06
B25C 1/08
Applicants: BLACK & DECKER INC.
Inventors: JASKOT, Erin Elizabeth
BARON, Michael P.
GARBER, Stuart E.
Title: DRY-FIRE BYPASS FOR A FASTENING TOOL
Abstract:
A fastening tool includes a contact trip operatively associated with a contact trip switch to enable a fastener drive system to be fired when the contact trip reaches a firing position, after having engaged a work surface. If a dry-fire condition exists in a magazine connected to the fastening tool, the movement of the contact trip is completely taken up or absorbed by a biasing agent so that the contact trip switch is not closed. The biasing agent also limits the amount of force that can be applied to the contact trip switch in the event an operator slams the contact trip against a work surface or drops the fastening tool nose-first onto an unyielding surface.