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US 2013/0205603 A1Published application
Chisel
AssigneeHilti Aktiengesellschaft
InventorsJens Schneider, Karsten Brandenburg, Zsolt Kosa, Lajos Toth
Life of this patent
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Abstract
A chisel according to the present technology has a reduced tendency to jam in a substrate. The chisel is on an axis in the striking direction with successively a striking surface, a shank, a spreading element and a tip. The spreading element has multiple ribs around the axis extending along the axis 2. The ribs each have a wave shape formed through a tangential deflection with respect to the axis.
Claims16
A chisel having an axis in a striking direction, the chisel comprising:
- a striking surface;
- a shank;
- a spreading element;
- and
- a tip;
- wherein the striking surface, shank, spreading element and tip are arranged successively along the axis, wherein the spreading element around the axis has multiple ribs extending along the axis, and wherein the ribs each have a wave shape formed with a tangential deflection with respect to the axis.
3 more elements
A chisel having an axis in a striking direction, the chisel comprising:
- a striking surface, a shank, a spreading element and a tip arranged successively along the axis, the spreading element having multiple ribs extending along the axis, each rib having wave shape formed with a tangential deflection with respect to the axis;
- wherein an amplitude of a deflection of sections of the rib extending in a circumferential direction is equal to an amplitude of the deflection of sections of the rib extending contrary to the circumferential direction;
- and
- wherein at least one of the ribs is deflected parallel to itself in a circumferential direction through the tangential wave-shaped deflection about the axis.
1 more element
Dependencies are inferred from the claim text.