| 摘要 |
PURPOSE:To reduce the number of parts and improve the assembly workability by pressure-attaching a concaved arcuate contact surface onto an arcuate supporting surface by the tension of a spring. CONSTITUTION:A mirror housing 3 is kept in the tiltable state for a base 2 by the tension of a spring 39 through an engagement member 42. Therefore, each contact part 48F, 48R of the engagement member 42 is attached onto each turning supporting shaft 13... of the turning supporting shafts 11F and 11R, and the both edges of the spring 39 are bridged between the mirror housing 3 and a base 2. Thus, the mirror housing 3 is kept in the pressure-contact state onto the base 2 by the tension of the spring 39 and the mirror housing 3. |
