In-car rotation detecting apparatus

Details In-car rotation detecting apparatus In-car rotation detecting apparatus

1996-10-28

1998-10-13

Luong, Vinh T.

Machine element or mechanism

Control lever and linkage systems

Elements

74527, 200 11A, 200 11B, 116315, G05G 110

Patent

active

058195971

ABSTRACT:
A rotation detecting device which issues a plurality of code signals by a simple configuration so as to detect the rotational angle position and the direction of rotation of a rotor according to the code signals. The rotation detecting device has a knob member which is rotatably attached to a part of an enclosure, a plurality of projections which are formed on the periphery of one end of the knob member, and two detection switches which selectively engage with the projections to turn ON/OFF and issue signals. These detection switches are disposed on a printed circuit board in such a manner that they turn ON/OFF at different timings as the knob member rotates. Thus, the rotational position and the direction of rotation of the knob member are detected by the combinations of the ON/OFF signals of the detection switches.

REFERENCES:
patent: 5020389 (1991-06-01), Sigler
patent: 5218879 (1993-06-01), Lyons
patent: 5271293 (1993-12-01), Olsson et al.
patent: 5422448 (1995-06-01), Nakano et al.
patent: 5487316 (1996-01-01), Hornung et al.
patent: 5692453 (1997-12-01), Vore et al.

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