Patent ID: 6783044
Filing Date: 2004-08-31
Classification: B25C

Abstract:
A fastener driving tool for driving fasteners into a workpiece, comprising:a housing assembly including a nosepiece assembly defining a longitudinally-extending fastener drive track; a fastener driving mechanism carried internally of the housing assembly and constructed and arranged to drive a fastener through the fastener drive track and into a workpiece when the fastener drive mechanism is selectively activated by a user; a manually actuatable trigger mechanism constructed and arranged to activate the fastener driving mechanism when manually actuated by a user; and a safety trip assembly including a trigger enabling portion and a workpiece engaging portion slidably mounted to the trigger enabling portion for rectilinear sliding movement in a longitudinal direction relative to the trigger enabling portion; a manually operable locking mechanism including a manually-operable, movable locking member mounted to the trigger enabling portion for movement between a locking position and a releasing position, the movable locking member in the locking position thereof engaging the workpiece engaging portion to releasably couple the workpiece engaging portion to the trigger enabling portion and thereby fix a longitudinal length of the safety trip assembly, the movable locking member in the releasing position thereof being disengaged from the workpiece engaging portion to enable the workpiece engaging portion to be slid rectilinearly in the longitudinal direction relative to the trigger enabling portion for adjusting the longitudinal length of the safety trip assembly and for optionally removing the workpiece engaging portion from the safety trip assembly; and a spring biasing the movable locking member into the locking position, the spring permitting the movable locking member to be manually moved to the releasing position against the biasing force by a user's hand engaging the movable locking member to move the movable locking member from the locking position to the releasing position and to automatically return to the locking position when the movable locking member is disengaged by the user's hand.