Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent
1987-12-23
1989-10-24
Scott, J. R.
Electricity: motive power systems
Motor-reversing
Armature or primary circuit control
337140, 318280, H02P 122, B60J 117, H01H 2100, H01H 7118
Patent
active
048764930
ABSTRACT:
A motor controlling switch device is disclosed which comprises a casing and an operating member provided in a casing which is movable from an original position and a first operating position and from the first operating position to a second operating position. A depressing piece is disposed in one of the casings and the operating member. Sloped surfaces and holding surfaces are formed in the casing and the operating member and coact with the depressing piece, respectively, for storing the operating member to the original position when the force on the operating member is released after it has moved to the first operating position and for holding the operating member in the second operating position when the operating member is moved through the first operating position. Forward and reverse rotation switches ae provided for establishing forward and reverse motor rotation circuits when the operating member is moved to the first and second operating positions for forward and reverse rotation. A restoring member of material capable of being stored to its original stretched configuration is disposed in the casing and is supplied through the forward and reverse rotation circuits with a locking current which flows through an electric motor when the operating member moves to the second operating position.
REFERENCES:
patent: 4551660 (1985-11-01), Suzuki
Kabushiki Kaisha Tokai Rika Denki Seisakusho
Scott J. R.
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