Electricity: circuit makers and breakers – Special application – Steering wheel – shaft or column mounted
Patent
1998-03-05
1999-08-17
Friedhofer, Michael
Electricity: circuit makers and breakers
Special application
Steering wheel, shaft or column mounted
200 4, H01H 900
Patent
active
059396865
ABSTRACT:
An electrical rotary push switch includes a housing having a longitudinal axis and an actuating element mounted around the housing. The actuating element is rotatable around and longitudinally movable about the housing to define switching positions. A functional element is mounted around the housing and is coupled to the actuating element to rotate as the actuating element rotates. The functional element remains fixed in position as the actuating element longitudinally moves. A first electrical contact part is slidably held to the housing to be longitudinally movable along the housing longitudinal axis. The first contact part is coupled to the functional element such that the first contact part longitudinally moves as the actuating element rotates and remains fixed in position as the actuating element longitudinally moves. A second electrical contact part is slidably held to the housing to be longitudinally movable along the housing longitudinal axis. The second contact part is coupled to the actuating element such that the second contact part longitudinally moves as the actuating element longitudinally moves and remains fixed in position as the actuating element rotates. The contact parts contact different areas of a printed circuit board as the actuating element rotates and longitudinally moves to actuate switching functions associated with the switching positions.
REFERENCES:
patent: 3988574 (1976-10-01), Peitsmeier
patent: 5047600 (1991-09-01), Enari et al.
patent: 5075519 (1991-12-01), Hayakawa
patent: 5272290 (1993-12-01), Suzuki et al.
patent: 5310974 (1994-05-01), Churchill et al.
patent: 5691519 (1997-11-01), Mahr
Bellach Wolfgang
Eikenberg Thomas
Hoffmann Ernst-Wilhelm
Friedhofer Michael
Leopold Kostal GmbH & Co. KG
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