Hand-held power tool with pneumatic percussion mechanism
OwnerEric Mascallinventor
Life of this patent
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Abstract
A hand-held power tool includes a percussion mechanism (2) having a percussion piston (5) for impacting at least one anvil (8, 8′a, 8′b) displaceable in a guide tube (6) between two, spaced from each other axial stops (7a, 7b) provided in the guide tube (6), and an impact sleeve (10, 10′) arranged coaxially with the at least one anvil (8, 8′a, 8′b), axially displaceable within limits between two outer radial bands (9a, 9b, 9′) formed on the at least one anvil (8, 8′a, 8′b), and having an outer diameter (A) smaller than an inner diameter (I) of the guide tube (6).
Claims6
A hand-held power tool, comprising a guide tube (6) having two, spaced from each other, axial stops (7a, 7b);
- at least one anvil (8, 8′a, 8′b) axially displaceable within limits between the two axial stops (7a, 7b) and having two, axially spaced from each other, outer radial bands (9a, 9b, 9′);
- a percussion mechanism (2) including a percussion piston (5) for impacting the at least one anvil (8, 8′a, 8′b) and an air spring (3) for driving the percussion piston;
- and an impact sleeve (10, 10′) arranged coaxially with the at least one anvil (8, 8′a, 8′b), axially displaceable within limits between the two outer radial bands (9a, 9b, 9′) of the at least one anvil (8, 8′a, 8′b), and having an outer diameter (A) smaller than an inner diameter (I) of the guide tube (6).
Dependencies are inferred from the claim text.