Exterior view mirror for a motor vehicle

Optical: systems and elements – Mirror – Retractable vehicle mirror

Patent

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Details

359843, 359877, 248479, 248487, G02B 718, B60R 106

Patent

active

051668327

ABSTRACT:
An exterior view mirror for a motor vehicle has a mirror housing secured to a cylindrical boss which is pivotally mounted on a base. A clutch, which secures the housing at a predetermined orientation relative to the base, comprises a first member carrying a detent formation, a second member journalled on the first member so as to be axially movable relative thereto to bring the detent formation into engagement with a complementary formation on the second member, and a spring for causing relative axial movement between the first member and the second member to bring the detent formation into engagement with the complementary formation. The clutch can be released by heating a shape memory alloy wire which is arranged to oppose the spring so as to cause disengagement of the detent formation from the complementary formation.

REFERENCES:
patent: 4626085 (1986-12-01), Suzuki
patent: 4657362 (1987-04-01), Suzuki
patent: 4692000 (1987-09-01), Wada et al.
patent: 4786157 (1988-11-01), Mori et al.

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