| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an extremely superior effect in improvement of precision as a lamp fixture for a vehicle without a stress applied to an optical-axis nut even in a state whatever optical-axis adjustment is performed, without unnecessary stress applied to a reflecting mirror at which this optical-axis nut is joined, and thereby preventing deformation of shape of light distribution characteristics due to distortion of the reflecting mirror due to stress. SOLUTION: An optical-axis nut 3 is divided into a nut body part 31 and a nut accepting part 32, is formed as a substantially cylinder-shaped engagement part 31a in tapered shape whose diameter is reduced toward both ends from a center and has a screw hole part 31b which orthogonally crosses an axis Z at the center. The nut accepting part 32 is an optical-axis adjusting apparatus 1 of a lamp fixture for a vehicle provided with an engagement groove part 32a slidably engaged with a nut body part 31 in Z axis direction, is vertically and horizontally swingable, thereby being free of a stress applied in a state whatever optical-axis adjustment is performed, and free of unnecessary stress applied to the reflecting mirror.</p> |
