Chuck for a percussion tool
AssigneeHilti Aktiengesellschaft
InventorsJosef Fünfer, Michael Schamberger, Jens Frenzel
Life of this patent
Estimating the term…
Abstract
A chuck for a rotary-percussion power tool (2) and including a working tool guide (3) for receiving a shank (5) of a working tool, at least one locking member (4) for limiting an axial displacement of the shank (5) within an axial displacement length (X) from opposite sides, and a displaceable, spring-biased stop member (7) cooperating, within the shank displacement length (X), with a power tool side, stop surface (8) of the shank (5).
Claims11
A chuck for a rotary-percussion power tool (2), comprising a working tool guide (3) for receiving a shank (5) of a working tool;
- at least one locking member (4) for limiting an axial displacement of the shank (5) in opposite directions within an axial displacement length (X);
- a displaceable stop member (7) cooperating, within the shank displacement length (X), with a power tool side, stop surface (8) of the shank (5);
- and a spring (6) for biasing the stop member (7) into engagement with the stop surface (8) of the shank (5) and having a radially outwardly extending cup (10) that provides space for displacement of the stop member (7) radially outwardly.
A chuck for a rotary-percussion power tool (2), comprising a working tool guide (3) for receiving a shank (3) of a working tool;
- at least one locking member (4) for limiting an axial displacement of the shank (5) in opposite directions within an axial displacement length (X);
- a displaceable stop member (7) cooperating, within the shank displacement length (X), with a power tool side, stop surface (8) of the shank (5);
- and a spring (6) for biasing the stop member (7) into engagement with the stop surface (8) of the shank (5) and formed as a ring surrounding the stop member (7) and preloaded radially inwardly.
Dependencies are inferred from the claim text.