Tool fastenable to a drive shaft of a hand-held power tool driveable in oscillating manner
AssigneeRobert Bosch GmbH
InventorUlrich Bohne
Life of this patent
Estimating the term…
Abstract
A tool for use with is configured with a tool centering element and a fastening portion with form-locking elements for axial mounting and fastening onto a drive shaft of a hand-held power tool. The drive shaft is drivable in oscillating fashion and the centering element centers the tool relative to the drive shaft. The tool form-locking elements define a rotary position of the tool relative to the drive shaft. The centering element may be a through-hole in a fastening portion of the tool or, may be a fastening screw that passes through an axially centered through hole in the fastening portion to the tool for securing the toll and fastening screw in a bore within the drive shaft to which the tool is attached for intended operation.
Claims23
A blade for mounting on a drive shaft of a hand-held power tool, the blade comprising:
- a working portion;
- and
- a fastening portion including blade form-locking elements for axial mounting and fastening the blade onto a drive shaft of the hand-held power tool;
- and a blade centering element configured to center the blade relative to a drive shaft of the hand-held power tool, the blade centering element is embodied as an opening that passes through the blade;
- wherein the fastening portion forms a first blade part arranged in parallel to the working portion, which forms a second blade part;
- wherein the second blade part is permanently connected to the first blade part via an inclined section of the blade, said inclined section is arranged relative to the fastening portion by an angle other than 90°;
- wherein said blade form-locking elements are located radially outside said blade centering element in a circular arrangement, are defined as openings that pass through the blade, have a quadrangular cross section for corresponding to a trapezoidal cross section of flange form-locking elements of the hand-held power tool, are distributed uniformly over an angular range that is defined by an entire circumference of the circular arrangement, are configured to define a plurality of different, adjacent rotary positions, relative to the drive shaft of the hand-held power tool, and comprise at least one slaving face that is flat.
A blade for mounting on a drive shaft of a hand-held power tool, the blade comprising:
- a working portion;
- and
- a fastening portion including blade form-locking elements for axial mounting and fastening the blade onto a drive shaft of the hand-held power tool;
- and
- a blade centering element configured to center the blade relative to a drive shaft of the hand-held power tool, the blade centering element is embodied as an opening that passes through the blade and have having a closed circular cross-section;
- wherein the fastening portion forms a first blade part arranged in parallel to the working portion, which forms a second blade part;
- wherein the second blade part is permanently connected to the first blade part via an inclined section of the blade;
- wherein said blade form-locking elements are located radially outside said blade centering element in a circular arrangement, are defined as openings that pass through the blade, have a quadrangular cross section for corresponding to a trapezoidal cross section of flange form-locking elements of the hand-held power tool, are distributed uniformly over an angular range that is defined by an entire circumference of the circular arrangement, are configured to define a plurality of different, adjacent rotary positions, relative to the drive shaft of the hand-held power tool, and comprise at least one slaving face that is flat.
A blade for mounting on a drive shaft of a hand-held power tool, the tool compromising:
- a working portion;
- and
- a fastening portion including blade form-locking elements for axial mounting and fastening the blade onto a drive shaft of the hand-held power tool;
- and
- a blade centering element configured to center the blade relative to the drive shaft of the hand-held power tool, the blade centering element is embodied as an opening that passes through the blade;
- wherein the fastening portion forms a first blade part arranged in parallel to the working portion, which forms a second blade part;
- wherein the second blade part is permanently connected to the first blade part via an inclined section of the blade;
- wherein said blade form-locking elements are located radially outside said blade centering element in a circular arrangement, are defined as openings that pass through the blade, have a quadrangular cross section for corresponding to a trapezoidal cross section of flange form-locking elements of the hand-held power tool, are distributed uniformly over an angular range that is defined by an entire circumference of the circular arrangement, are configured to define a plurality of different, adjacent rotary positions, relative to the drive shaft of the hand-held power tool, and blade fastening portion, are spaced apart from the circular blade centering element and comprise at least one slaving face that is flat.
Dependencies are inferred from the claim text.