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.
Claims13
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 a body surrounding an interior space closed in the striking direction and counter to the striking direction, the body being monolithic;
- and wherein the body has a varying wall thickness decreasing continuously at an increasing distance from a center of gravity of the anvil.
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 a body surrounding an interior space closed in the striking direction and counter to the striking direction, the body being monolithic;
- wherein the interior space is a two-part interior space with a disk separating a first section and a second section of the interior space.
Dependencies are inferred from the claim text.