DEPTH OF DRIVE ADJUSTMENT FOR A FASTENER DRIVING TOOL WITH REMOVABLE CONTACT MEMBER AND METHOD OF EXCHANGING CONTACT MEMBERS

摘要

A fastener driving tool (10) includes a housing assembly (12) with a nosepiece assembly (18) defining a drive track (28). A safety trip assembly (60) 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 position by engagement between a workpiece and the workpiece engaging portion (64). The workpiece engaging portion (64) is movable to permit adjustment of a length of the safety trip assembly (60). The workpiece engaging portion (64) may be removed from the safety trip assembly (60) and exchanged with another different workpiece engaging portion (64). A workpiece engaging portion (64) usable with the fastener driving tool (10) includes a positioning mechanism having an opening locating structure (61) and a guiding structure (65).