Percussion rotary hand-held power tool with a rotatable guide tube
AssigneeHilti Aktiengesellschaft
InventorsJens Frenzel, Hans-Werner Bongers-Ambrosius, Peter Gerold
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Abstract
A percussion rotary hand-held power tool including a percussion piston (3), an anvil (5), a chuck (4) for receiving a working tool, an axially displaceable and rotatable guide tube (6) located in the housing (2) and extending in a telescopic-like manner over the chuck (4) and the anvil (5) from a chuck region up to a region of the percussion piston (3), and a sealing element (8) located between the guide tube (6) and the housing (2) and having at least one axial seal (9) for performing only axial movement and at least one rotary shaft seal (10) for performing only rotary movement.
Claims7
A percussion rotary hand-held power tool, comprising a housing (2);
- a percussion piston (3) located in the housing (2);
- an anvil (5) located in the housing (2);
- a chuck (4) for receiving a working tool;
- an axially displaceable and rotatable guide tube (6) serving as a working tool spindle, located in the housing (2) and extending in a telescopic-like manner over the chuck (4) and the anvil (5) from a chuck region up to a region of the percussion piston (3);
- and a sealing element (8) located between the guide tube (6) and the housing (2) and having at least one axial seal (9) for performing only axial movement and at least one rotary shaft seal (10) for performing only rotary movement.
Dependencies are inferred from the claim text.