| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the number of assembling parts and perform aiming adjustment of high accuracy. SOLUTION: The extreme end of an aiming gear shaft 4 is rotationally movably fixed onto the outer face of a reflector 1, and the male screw 15 provided on the outer circumference of the aiming gear shaft 4 at the part penetrating through a housing 2 is threadedly engaged with the female screw of the supporting member 16 provided on the housing 2. Hereby, by rotating the aiming gear shaft 4, the aiming gear shaft 4 can be moved while tilting the reflector 1, and aiming adjustment of high accuracy can be performed, by utilizing movement of the aiming gear shaft 4 having a large moving quantity. A boss 17 for indicator is integratedly provided on the housing 2, adjacent to the aiming gear boss 8 and in parallel with the aiming gear shaft 4, and hence the number of assembling parts can be reduced.</p> |
