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US 9,676,038 B2Granted
Chuck
AssigneeHilti Aktiengesellschaft
InventorUdo Hauptmann
Life of this patent
Estimating the term…
Abstract
A chuck for a chiseling power tool has a holding sleeve that is arranged concentrically with respect to a working axis and that serves to receive one shank end of a tool having a locking groove. A locking element protrudes partially into the holding sleeve so as to engage with the locking groove. A sliding block guides the locking element, whereby the sliding block has a section that is wound helically around the working axis.
Claims14
A chuck for a chiseling power tool comprising:
- a holding sleeve arranged concentrically with respect to a working axis serving to receive one shank end of a tool having a locking groove;
- a locking element protruding partially into the holding sleeve so as to engage with the locking groove, the locking element movable along the working axis;
- and
- a sliding block, the sliding block having a groove wound helically around the working axis, the locking element being guided in the groove.
1 more element
A chuck for a chiseling power tool comprising:
- a holding sleeve arranged concentrically with respect to a working axis serving to receive one shank end of a tool having a locking groove;
- a locking element protruding partially into the holding sleeve so as to engage with the locking groove, the locking element movable along the working axis;
- a sliding block, the sliding block having a groove wound helically around the working axis or skewed with respect to the working axis, the locking element being guided in the groove;
- and
- a locking sleeve, an inside of the locking sleeve radially facing the working axis having the sliding block, the sliding block touching the locking element, wherein the inside of the locking sleeve has a cutout into which another locking element protrudes, a cutout dimension of the cutout being greater in a circumferential direction than a dimension of the sliding block in the circumferential direction.
2 more elements
A chuck for a chiseling power tool comprising:
- a holding sleeve arranged concentrically with respect to a working axis serving to receive one shank end of a tool having a locking groove;
- a locking element protruding partially into the holding sleeve so as to engage with the locking groove, the locking element movable along the working axis;
- a sliding block, the sliding block having a groove wound helically around the working axis or skewed with respect to the working axis, the locking element being guided in the groove;
- a locking sleeve, an inside of the locking sleeve radially facing the working axis having the sliding block, the sliding block touching the locking element;
- and
- a detachable sliding block lock, the sliding block lock, in a locking position, tensioning the sliding block with a spring acting in the impact direction and, in an unlocked position, disengaging the spring from the sliding block.
3 more elements
Dependencies are inferred from the claim text.