Machine element or mechanism – Gearing – Interchangeably locked
Patent
1999-01-13
1999-11-30
Marmor, Charles A.
Machine element or mechanism
Gearing
Interchangeably locked
464 61, 464 77, 464 84, F16H 308, F16D 312, F16D 352
Patent
active
059922575
ABSTRACT:
A mode change switch for a power tool, which switch is moveable between at least two positions corresponding to different operating modes of the tool in which different components of the tool are brought into a meshing engagement. The switch comprises a manually operable driving member moveable between at least two positions in each of which it is adapted to be realizably restrained and a driven member which is adapted to be driven by the driving member between associated positions to directly or indirectly facilitate a change in operating mode. A spring engages between the driving member and driven member, to urge the driven member to follow the movement of the driving member. The switch is arranged so that a first end of the spring abuts a first pair of stop members and a second end of the spring abuts a second pair of stop members. One of each pair of stop members is located on the driving member. And the other of each pair is located on the driven member.
REFERENCES:
patent: 734838 (1903-07-01), Edgar
patent: 1956798 (1934-05-01), Janssen
patent: 2330076 (1943-09-01), Ochsenbein
patent: 3785443 (1974-01-01), Armbruster
patent: 3808904 (1974-05-01), Gotsch et al.
patent: 4710071 (1987-12-01), Koehler
patent: 5305651 (1994-04-01), Perego
Nemetz Uwe
Schonweitz Wolfgang
Black & Decker Inc.
Marmor Charles A.
Pang Roger
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