Reflector movable type headlamp for vehicle

A reflector movable type headlamp for a vehicle comprising:

• a lamp body including a screw insertion hole;
• a front lens assembled into a front opening of the lamp body in order to constitute a lamp housing;
• a reflector accommodated in the lamp housing;
• and
• an aiming mechanism to tiltably support the reflector with respect to the lamp body,
• the aiming mechanism including:
• an aiming fulcrum forming a tilt fulcrum of the reflector, an aiming screw supported rotatably on the screw insertion hole, and a nut member attached to a bracket on a reflector side, screwed into the aiming screw and longitudinally advancing and retreating in cooperation with rotation of the aiming screw;
• a nut sliding guide extended in parallel with the aiming screw to carry and support the nut member slidably in a longitudinal direction being extended integrally with the lamp body,
• an attachment portion of the nut member constituting an aiming point and the bracket being provided with stress releasing means having a ball-and-socket joint structure for releasing a stress generated in the attachment portion with advance and retreat of the nut member,
• wherein the nut member has such a structure that a nut member body itself provided with a female screw portion constitutes a ball portion of the ball-and-socket joint structure and a slider to be supported by the nut sliding guide is formed integrally in a position offset toward a side of the nut member body;
• and
• a bearing attached to the bracket and provided with a longitudinal through hole for avoiding an interference of a ball receiving portion for supporting the ball portion with the aiming screw.