Apparatus for adjusting attitude of optical axes of head lamps o

Details Apparatus for adjusting attitude of optical axes of head lamps o Apparatus for adjusting attitude of optical axes of head lamps o

1990-07-31

1991-04-23

Husar, Stephen F.

Illumination

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

Tie rod element controlled

362286, 362272, B60Q 106

Patent

active

050104578

ABSTRACT:
An apparatus for properly adjusting an attitude of optical axes of head lamps on a vehicle includes a motor driven actuator and a controlling section. The motor driven actuator additionally includes a voltage dividing circuit comprising two resistors and one of a plurality of contact positions in the controlling section is earthed directly, whereby a resistance value of the controlling section becomes zero ohm when the angle of elevation assumed by the head lamps is maximized in an upward tilted state. A motor circuit in the motor driven actuator includes in a power supply line an element for preventing an excessive intensity of electric current from being fed to a motor when motor is held in a blocked state for some reason. Preferably, the element has positive temperature characteristics which suppress generation of heat when rotation of the motor is blocked.

REFERENCES:
patent: 4162424 (1979-07-01), Zillgitt et al.
patent: 4611263 (1986-09-01), Kawai

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