MULTI-STROKE FASTENING DEVICE

摘要

A multi-stroke fastening device comprising a housing, a fastener drive track carried by the housing (12), a striker assembly guide track (26) mounted within the housing, a striker assembly (30) mounted in slidable relation within said guide track, a power drive assembly (50), and a feed mechanism (90). The striker assembly (30) includes a driver member (32) constructed an d arranged to strike a fastener (33) disposed in the fastener drive track (14) . The striker assembly (30) is constructed and arranged to be moved along the guide track (26) through a plurality of alternating drive strokes and return strokes to effect a plurality of impacts of the driver member (32) upon the fastener (33) in order to drive the fastener (33) into the workpiece. The striker assembly (30) has a substantially constant drive stroke lengths relative to the guide track (26). The power drive assembly (50) is construct ed and arranged to drive the striker assembly (30) to effect the plurality of impacts of the driver member (32) upon the fastener (33), and the feed mechanism (90) is constructed and arranged to feed successive fasteners (34) into the drive track (14) to be struck by the striker assembly (30).