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US 7,258,351 B2Granted
Quick-action chuck
AssigneeRobert Bosch GmbH
InventorsErhard Hoffmann, Joachim Hecht, Siegfried Keusch
Life of this patent
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Abstract
A quick-action chuck, in particular for a power tool, has an actuating element (20) and a control device which includes at least one mechanism (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking reinforcement force via the locking device (10) that is controllable by the control device, a positive-engagement connection can be brought about for absorbing the chucking reinforcement force.
Claims12
A quick-action chuck, comprising:
- an actuating element (20);
- and
- a control device which includes at least one means (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking reinforcement force, wherein via the at least one locking device (10) that is controllable by the control device, a positive-engagement connection can be brought about for absorbing the chucking reinforcement force, wherein the at least one locking device (10) is rotatable relative to a base body (32) for bringing about the positive-engagement connection, wherein chucking jaws (26) are guided in the base body (32), wherein said base body (32) has at least one slide face (64) on which the at least one locking device (10) is axially displaceable, wherein said base body has a set of teeth (48) in which the at least one locking device (10) engages in a locking position, and wherein as a result of meshing with the set of teeth (48), the at least one locking device (10) is axially fixed on the base body (32).
A power tool having a quick-action chuck, said quick-action chuck comprising:
- an actuating element (20);
- and
- a control device which includes at least one means (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking reinforcement force, wherein via the at least one locking device (10) that is controllable by the control device, a positive-engagement connection can be brought about for absorbing the chucking reinforcement force, wherein the at least one locking device (10) is rotatable relative to a base body (32) for bringing about the positive-engagement connection, wherein chucking jaws (26) are guided in the base body (32), wherein said base body (32) has at least one slide face (64) on which the at least one locking device (10) is axially displaceable, wherein said base body (32) has a set of teeth (48) in which the at least one locking device (10) engages in a locking position, and wherein as a result of meshing with the set of teeth (48), the at least one locking device (10) is axially fixed on the base body (32).
Dependencies are inferred from the claim text.