Optical: systems and elements – Mirror – Automatically adjustable in response to vehicle position,...
Patent
1993-10-15
1996-07-30
Shafer, Ricky D.
Optical: systems and elements
Mirror
Automatically adjustable in response to vehicle position,...
359872, G02B 7182, B60R 106
Patent
active
055417787
ABSTRACT:
A special rear vision mirror device and installation which provides and utilizes a continual safety monitoring of the angular relationship between the pivotally-connected tractor and trailer vehicle units of a "semi" (tractor/trailer tandem-connected vehicles). The overall mirror installation, during a semi's turning maneuver, automatically rotates the mirror in a special relation and correspondence to what at each increment of the turn is the angular relation of the tractor and trailer, particularly the angular changes from a straight (in line) tandem vehicle relation, occurring while the semi is in the turning maneuver. This provides, continuously, a controlled, and as needed, continuously-adjusted safety setting for the mirror, such that the driver's safety-needed vision of the trailer's rear portion and rear wheels is viewable through the mirror; thus the driver's vision during a turn is permitted and provided by the mirror to be that of maximal safety. The mirror's controlled rotation is provided to be one-half the angle which is a special and changing-value function of the amount of rotational swing of the trailer in the turn at any portion of the turn.
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