Vehicular lighting device having a power driven lamp cover

Details Vehicular lighting device having a power driven lamp cover Vehicular lighting device having a power driven lamp cover

1986-02-27

1987-01-27

Nelli, Raymond A.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362375, 362325, F21V 1700

Patent

active

046398392

ABSTRACT:
A vehicular lamp assembly such as a combined fog and cornering lamp has a lamp cover mounted to its housing for pivotal movement between an open position, where the lamp cover uncovers the front lens of the lamp housing, and a closed position where the lamp cover covers the front lens. For pivoting the lamp cover between the open and closed positions a lamp cover drive mechanism comprises a drive shaft protruding from the lamp housing and coupled directly to the lamp cover. The drive shaft is driven by a reversible electric drive motor via a torque limiter which permits the motor to rotate independently of the drive shaft upon jamming of the lamp cover, as by being clogged with snow. Also included is an electric control circuit which controls the drive motor for opening and closing the lamp cover in response to the actuation and deactuation of a hand switch within easy reach of the vehicle driver. The control circuit further turns on the light source of the lamp assembly only when the lamp cover is opened. The lamp cover is further provided with a two way biasing mechanism which makes it unnecessary to hold the drive motor energized throughout the travel of the lamp cover between the open and closed positions.

REFERENCES:
patent: 3449559 (1969-06-01), Licata et al.
patent: 3601594 (1971-08-01), Carbary
patent: 4153358 (1979-05-01), Yamada
patent: 4441144 (1984-04-01), Horiuchi et al.
patent: 4443836 (1984-04-01), Horiuchi et al.
patent: 4513385 (1985-04-01), Lemme
patent: 4556934 (1985-12-01), Lemme et al.
patent: 4556935 (1985-12-01), Lemme
patent: 4567549 (1986-01-01), Lemme

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