SAFETY TRIP ASSEMBLY AND TRIP LOCK MECHANISM FOR A FASTENER DRIVING TOOL

摘要

A fastener driving tool (10) includes a housing assembly (12) with a nosepie ce assembly (18) defining a drive track (28). A driving mechanism (26) is house d within the housing assembly (12) to drive a fastener through the drive track (28) and into a workpiece in response to a trigger (37). The tool includes a safety trip assembly (60) which includes a trigger enabling portion (62) and a workpiece engaging portion (64) and is movable between an extended disabling position and a retracted enabling position. The safety trip assembly (60) is biased toward the extended position and is moved toward the retracted positi on by engagement between the workpiece and the workpiece engaging member (78). The workpiece engaging portion (64) is movable to permit adjustment of a length of the safety trip assembly (60).