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US 8,366,122 B2Granted
Rotary tool with multiple tool attachment interfaces
AssigneeRobert Bosch GmbH
InventorsSiew Yuen Lee, Mohsein Wan, Chi Hoe Leong, Manfred Lutz
Life of this patent
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Abstract
A rotary tool has an output shaft having an axis of rotation and a distal neck portion which has at least three neck faces that do not intersect the axis of rotation, and a substantially U-shaped spring element having a base portion and two leg portions, wherein the spring element straddles the distal neck portion.
Claims11
A rotary tool, comprising
- an output shaft having an axis of rotation and a distal neck portion which has at least two neck faces that do not intersect said axis of rotation;
- and
- a substantially U-shaped spring element having a base portion and two leg portions, said spring element straddling said distal neck portion;
- wherein said base portion has an opening that is positioned generally coaxially with at least one neck cavity provided in one of the at least two neck faces of said output shaft.
1 more element
Dependencies are inferred from the claim text.