| 摘要 |
<p>1,067,792. Cartridge-actuated tools. ANSTALT FUR MONTAGE-TECHNIK. April 8, 1965 [April 17, 1964], No. 14874/65. Heading B4C. A cartridge-actuated stud driving tool comprises a support member having a cartridge chamber 6 leading into an explosion chamber 5 and a recoil damping mass 7 having an end 7a adapted to pass through the chamber 5 after firing in order to remove from the surface thereof any residues deposited by the explosion. The recoil mass 7 comprises a piston-like member 7a coupled by a spring clip 12a to a bolt 10 which is connected to a portion 7b of the mass; the mass is loaded by a spring 14 to the position shown. In operation, a handle 4 is pivoted about a pin 3 to an open position and a cartridge inserted into the chamber 5; the handle is then closed and locked by a latch device 20, 21. A stud is inserted into a barrel 16 and the latter then pressed against a workpiece so that the end 15a of a plunger 15 acts against the piston-like member 7a and enters the chamber 5. Upon releasing a firing pin 9 the cartridge is fired so that the plunger is driven forwardly. The recoil mass moves rearwardly against the action of the spring 14 and then quickly returns so that the piston 7a re-enters the chamber 5 and clears away any residue left by the explosion. In a modification, the length of the piston and the chamber 5 may be reduced.</p> |
