Screwdriver has pneumatic drive having reciprocating rack engaging cogwheel coupled via one-way coupling to screwdriver spindle

摘要

The screwdriver has a screwdriver spindle (45) operated via a pneumatic drive (13) having a reciprocating rack (33) in engagement with at least one cogwheel (43), for converting the reciprocation into opposing rotations of the cogwheel, a one-way coupling (53) using rotation of the cogwheel in a single direction for rotating the screwdriver spindle.