FASTENER DRIVING TOOL HAVING PRESSURIZED POWER SOURCE.

摘要

A fastener driving tool is disclosed having a self contained pre-pressurized pneumatic power source (22). Operator actuation of a trigger mechanism (43) causes a pressurized medium supplied by the self contained pre-pressurized power source to flow through a valve (36) and to propel a piston (56) connected to a driver blade (62) towards a nosepiece assembly end of the tool. The flow of the pressurized medium through the valve further recoils a spring-biased activating bolt which resets the trigger mechanism.