| 摘要 |
<p>In this invention, a visor (5) is configured to be inserted into a slit (41) of a movable plate (32). One of an engaging projecting portion (43) and an engaging concave portion (44) is provided on the visor (5), and the other is provided on the movable plate (32). When the visor (5) pivots in a first direction about the engaging projecting portion (43), a concave corner portion (48a) of the visor (5) comes into contact with a first position regulating portion (119) of the movable plate (32), thereby impeding the pivotal movement of the visor (5). When the visor (5) pivots in a second direction, the outer wall surface of the visor (5) comes into contact with wall portions (49a, 49b) of the movable plate (32), thereby impeding the pivotal movement of the visor (5).</p> |
