1988-05-04
1989-08-15
Arnold, Bruce Y.
350634, 350636, 350637, B60R 106, G02B 508
Patent
active
048568856
ABSTRACT:
A mirror housing is provided with two motor driven gear nuts each of which comprises a conductive material which however has a high resistance, and each of which engages a conductive wiper and threads on a respective screw shaft non-rotationally coupled to a mirror holder, one gear nut being operable in a direction to tilt a mirror in an horizontal plane and the other in a direction to tilt a mirror in a vertical plane, and conductors contact the ends of the gear nuts, so that when a voltage is applied across them, the voltage on the conductive wiper will be a function of the positions of the screw shafts in their nuts, thereby constituting position sensing means.
REFERENCES:
patent: 4482211 (1984-11-01), Fisher
patent: 4504117 (1985-03-01), Mittelhauser
patent: 4678295 (1987-07-01), Fisher
patent: 4770522 (1988-04-01), Alten
Patent Abstracts of Japan, vol. 9, No. 107, May 11, 1985.
Arnold Bruce Y.
Britax Rainsfords Pty. Ltd.
Shafer R. D.
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