| 摘要 |
A combustion-powered, fastener-driving tool (10) with a combustion chamber (30), a piston chamber (40) communicating with the combustion chamber (30), a driving piston (50) movable within the piston chamber (40) over a stroke between an initial position and a terminal position, and a driving blade (60) mounted on the driving piston (50) to be movable with it. The driving piston (50), the driving blade (60), and the piston chamber (40) are arranged so that combustion in the combustion chamber (30) imparts energy to the driving piston (50) and the driving blade (60) to drive the driving piston (50) and the driving blade (60) from the initial position toward the terminal position with the driving blade (60) preceding the driving piston (50). The stroke has a length sufficient to enable the driving blade (60) to transfer more than half and preferably eight tenths of the maximum, transferable energy to a fastener. The driving piston (50), the driving blade (60), and the piston chamber (40) are arranged so that the driving piston (50) and the driving blade (60) are guided solely by the axial length of the driving piston (50), over at least substantially all of the stroke. <IMAGE> |
