Replaceable chuck
AssigneeHilti Aktiengesellschaft
InventorGünter Haas
Life of this patent
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Abstract
A replaceable chuck for a percussion hand-held power tool (3) for applying axial blows to a working tool receivable in the chuck, includes a release sleeve (4) axially displaceable relative to the base body (6) against a spring-biasing force and including an inwardly located locking element (11) for formlockingly securing the chuck on a power tool spindle (15) with locking elements (12) extending through respective openings (13) formed in a base body (6) and engageable in associated recesses (14) of the power tool spindle (15), and a formlocking displacement guide (5) that provides for displacement of the release sleeve (4) relative to the base body (6) and includes, along its axial extension, a tangential section.
Claims4
A replaceable chuck for a percussion hand-held power tool (3) for applying axial blows to a working tool receivable in the chuck, the chuck comprising a base body (6);
- and a release sleeve (4) axially displaceable relative to the base body (6) against a spring-biasing force and including inwardly located locking means (11) for formlockingly securing the chuck on a power tool spindle (15) with locking elements (12) extending through respective openings (13) formed in the base body (6) and engageable in associated recesses (14) on the power tool spindle (15), and a formlocking displacement guide (5) that provides for displacement of the release sleeve (4) relative to the base body (6) and includes along an axial extension of the guide (5), a tangential section,
- wherein the displacement guide (5) is formed as a pin-slot guide formed of a radially projecting pin (7) and a slot (17), with the pin (7) being formlockingly displaceable along a profile of the slot (17), and
- wherein the pin (7) is formed as a L-shaped pin that becomes self-locked in the tangential section of the slot (17) in a release position of the chuck.
Dependencies are inferred from the claim text.