Claims
- 1. A tool for at least one of a drill chuck and a tool holder having a plurality of inwardly projecting rotational drivers with flanks extending approximately radially and connected by guide portions, for a hand-held drill or hammer device, the tool comprising a shaft provided with a plurality of grooves which are arranged to receive the drivers and located at angular intervals at a circumference of said shaft, said grooves having at least on one side a plurality of substantially planar lateral walls which are arranged approximately radially to a tool axis in a stepped manner and are connected with one another by connecting portions.
- 2. A tool as defined in claim 1, wherein said connecting portions extend along a cylindrical outer surface.
- 3. A tool as defined in claim 1, wherein said grooves are spaced from one another by equal angular intervals.
- 4. A tool as defined in claim 1, wherein said shaft has depressions which form axial extensions of said grooves.
Priority Claims (1)
Number |
Date |
Country |
Kind |
41 32 023.9 |
Sep 1991 |
DEX |
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CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation application of Ser. No. 211,328 filed on Mar. 25, 1994, now U.S. Pat. No. 5,474,139.
US Referenced Citations (8)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0141990 |
Sep 1984 |
EPX |
906434 |
Sep 1962 |
GBX |
91 20119 |
Dec 1991 |
WOX |
Non-Patent Literature Citations (1)
Entry |
Patent Abstracts of Japan vol. 16, No. 227 (E-1207) May 26, 1992. |
Continuations (1)
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Number |
Date |
Country |
Parent |
211328 |
Mar 1994 |
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