Rotatable door mirror for a motor vehicle

Details Rotatable door mirror for a motor vehicle Rotatable door mirror for a motor vehicle

1985-11-06

1986-12-02

Watkins, Donald

G02B 718

Patent

active

046260854

ABSTRACT:
An apparatus for retractably tilting a visor of a door mirror of a motor vehicle between a normal position and a retracted position, including a spring member made of shape-memory alloy, a lever member for setting the spring member at a minimum mounting length and a maximum mounting length when the visor is disposed at one of and the other one of the normal position and the retracted position, respectively, and a battery acting as a power source of the apparatus, whereby when the spring member is heated upon its energization, the spring member is contracted from the maximum mounting length to the minimum mounting length based on shape-memory effect of the shape-memory alloy such that the visor is tilted to one of the normal position and the retracted position.

REFERENCES:
patent: 3937563 (1976-02-01), Frabe
patent: 4158483 (1979-06-01), Fisher et al.
patent: 4380370 (1983-04-01), Mittelhauser
patent: 4464017 (1984-08-01), Wada
patent: 4504116 (1985-03-01), Sharp
patent: 4558930 (1985-12-01), Deedreek

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