Patent ID: 8186553

Claim:
A fastener driving tool comprising: a housing; a motor provided in the housing; a plunger provided in the housing and movable between its top dead center and its bottom dead center for impacting a fastener in a fastener driving direction; a cable member connected to the plunger for pulling the plunger from the bottom dead center to the top dead center; a drum driven by the motor for winding the cable member, the cable member being connected to the plunger at a first connecting position and connected to the drum at a second connecting position; and a biasing spring associated with the plunger for biasing the plunger in the fastener driving direction, the biasing spring being configured to accumulate a driving force of the motor as a resilient energy; wherein the cable member has a length greater than a distance between the first connecting position and the second connecting position when the plunger is at the bottom dead center.