Portable power tool
AssigneeHilti Aktiengesellschaft
InventorsKlaus-Peter BOHN, Markus HARTMANN, Carsten PETERS, Maria ZIVCEC, Donato CLAUSI
Life of this patent
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Abstract
A portable power tool has a tool holder 2, a motor 8 and an electro-pneumatic striking mechanism 4. The striking mechanism includes an excitation piston 13, a striker 14, a pneumatic chamber 18 for coupling the striker 14 to the excitation piston 13 and an anvil 15 which is arranged in the striking direction 5 downstream of the striker 14 and is provided for transmitting a blow of the striker to the tool. The anvil is hollow. The hollow interior space 23 is closed in the striking direction 5 and counter to the striking direction 5.
Claims11
1-10. (canceled)
A portable power chiseling tool comprising:
- a tool holder for holding a tool on a working axis;
- a motor;
- a striking mechanism having an exciter piston coupled to the motor, a striker guided on the working axis, a pneumatic chamber closed by the exciter piston and the striker for coupling a movement of the striker to the exciter piston, and an anvil arranged in a striking direction downstream of the striker for transmitting a blow of the striker to the tool, the anvil having an interior space closed in the striking direction and counter to the striking direction.
Dependencies are inferred from the claim text.