Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Patent
1998-09-08
2000-02-29
Luebke, Renee S.
Electricity: circuit makers and breakers
Multiple circuit control
Pivoted contact
200517, 200565, 200568, H01H 1914
Patent
active
060311908
ABSTRACT:
An operating mode switching unit for a bicycle includes a rotary knob disposed on a front surface of a panel and connected to a plate-shaped spring unit by an axle. The spring unit includes a first spring portion which can be elastically deformed in the direction toward the axle. A second spring portion which can be elastically deformed in the direction toward the panel is disposed nearer to the axle. The first spring portion has a first protrusion projecting radially outward, and the second spring portion has a second protrusion projecting in the direction away from the panel. The panel is formed in its rear surface with a wall having indentations into which the first protrusion can snap. A laminate member faces the rear surface of the spring unit and includes plural pairs of opposing switch contacts. Each pair of contacts are pressed to contact with each other by the second protrusion.
REFERENCES:
patent: 3300594 (1967-01-01), Paine et al.
patent: 4246453 (1981-01-01), Marchese et al.
patent: 4272658 (1981-06-01), Crosby
patent: 4511769 (1985-04-01), Sahakian et al.
patent: 4945195 (1990-07-01), Ipcinski
patent: 5057657 (1991-10-01), Skulic
patent: 5483137 (1996-01-01), Fey et al.
Okamoto Shigeru
Tokuda Toshihide
Luebke Renee S.
Murray William H.
Shimano Inc.
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