PROJECTION TYPE HEADLAMP FOR AUTOMOBILE

摘要

PROBLEM TO BE SOLVED: To provide a projection type headlamp for an automobile allowing a light-shielding shade to be smoothly vertically slid by reducing a sliding contact area of a vertical sliding contact part of the light-shielding shade.

SOLUTION: The light-shielding shade 34 for light distribution pattern formation is energized downward by a spring 39 and held in the vicinity of a focal point of a projection lens disposed in front of a light source-mounted reflector so as to slidingly contact an eccentric cam 36 supported to a pair of left and right columnar parts 77 erected on a base 76; a flat lower-side extension part 34b2 with a vertically extending elongate hole 34c formed therein is formed on the light-shielding shade 34 oppositely to the columnar parts 77 by a projection type headlamp vertically moving in parallel by the eccentric cam 36 driven by a motor 58; a plurality of horizontal guide pins 37 allowing positioning and slide along the elongate hole 34c are formed on the left and right columnar parts 77. The sliding contact area (sliding friction resistance) of the sliding part (an engagement part of the horizontal guide pins 37 with the elongate hole 34c) of the light-shielding shade 34 is small, whereby the light-shielding shade 34 can be smoothly vertically slid even by the small-capacity motor 58.

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