Patent ID: 7556182
Filing Date: 2009-07-07
Classification: B25C

Abstract:
1. A gas combustion type driving tool comprising: a combustion chamber in which a mixed gas produced by stirring and mixing together combustible gas and air is combusted therein; a striking piston to be driven by a combustion gas; a driver connected to a lower surface side of the striking piston; a nose part that slidingly guides the driver and drives out a fastener therefrom; a feed claw engageable with and disengageable from connected fasteners accommodated within a magazine; a feed piston/cylinder device that reciprocates the feed claw in a feed direction toward the nose part and in a retreat direction opposite to the feed direction; a gas conduit that connects the combustion chamber and the feed piston/cylinder device; and an operation delay device disposed in the gas conduit for delaying a supply of a pressure of the combustion gas to the feed piston/cylinder device with respect to an operation of the striking piston.