Accessory clamp for a power tool
AssigneeRobert Bosch GmbH
InventorsWalter Bernardi, Brian Knoles
Life of this patent
Estimating the term…
Abstract
A clamping device for clamping an accessory to a power tool includes a first flange, a spindle member, and a cam member. The first flange is coupled to a drive system of the power tool and is configured to receive the accessory. The spindle member defines a longitudinal axis and includes a second flange provided on an end of the spindle member and a follower member provided on an opposite end of the spindle member. The cam member includes a cam surface configured to interact with the follower surface, the cam member is rotatable about the longitudinal axis to a clamped position and to an unclamped position. In the unclamped position the accessory is removable from the first flange, and in the clamped position the accessory is clamped between the first flange and the second flange.
Claims12
A clamping device for clamping an accessory to a power tool comprising:
- a first flange coupled to a drive system of the power tool and configured to receive the accessory;
- a spindle member defining a longitudinal axis and including a second flange provided on an end of said spindle member and a follower member provided on an opposite end of said spindle member, said second flange defining a circular periphery and a center point that is misaligned with said longitudinal axis;
- and
- a cam member including a cam surface configured to interact with said follower member, said cam member being rotatable about said longitudinal axis to a clamped position and to an unclamped position, in said unclamped position the accessory is removable from said first flange, and in said clamped position the accessory is clamped between said first flange and said second flange.
A clamping device for clamping an accessory to a power tool comprising:
- a first flange coupled to a drive system of the power tool and configured to receive the accessory;
- a spindle member defining a longitudinal axis and including a second flange provided on an end of said spindle member and a follower member provided on an opposite end of said spindle member;
- and
- a cam member including a cam surface configured to interact with said follower member, said cam member being rotatable about said longitudinal axis to a clamped position and to an unclamped position, in said unclamped position the accessory is removable from said first flange, and in said clamped position the accessory is clamped between said first flange and said second flange and said cam surface is separated from said follower member.
A clamping device for clamping an accessory to a power tool, comprising:
- a first clamp member coupled to a drive system of the power tool and including a plurality of protrusions configured to be received by a plurality of protrusion openings formed in the accessory;
- an actuator rotatable about an axis of rotation to a clamped position and to an unclamped position;
- and
- a second clamp member movable in a direction parallel to said axis of rotation and defining a chamfered surface at least partially positioned against a spindle opening defined by the accessory,
- wherein when said actuator is rotated to said clamped position the accessory is clamped between said first clamp member and said second clamp member, and said chamfered surface biases the plurality of protrusion openings against said plurality of protrusions, and
- wherein the accessory is removable from said first clamp member when said actuator is rotated to said unclamped position.
Dependencies are inferred from the claim text.