B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
B25D9/06—Means for driving the impulse member
B25D9/08—Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure
Proc& xc9;d& xc9; de r& xc9;glage de la course de frappe d'un piston de frappe d'un appareil & xc0; percussions, et un appareil & xc0; percussions pour la mise en & x152;uvre de ce proc& xc9;d& xc9