| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sight-line guide apparatus for a dust-proof mechanism for cleaning a longitudinally long reflecting surface by using a windmill, in addition to a reflecting function. <P>SOLUTION: The dust-proof mechanism, in which a supporting shaft 5 integrally constituting the second gear 4 engaged with the first gear 3 and an auxiliary gear 6 is installed adjacent to the conduction shaft 1 in which a windmill 2 is mounted at one end and the first gear 3 at the other end, and a supporting shaft 7, to which a third gear 8 engaging with the auxiliary gear 6 is mounted adjacent to the supporting shaft 5, and one end of an arm 10 is mounted rotatably through a pin 9 in the vicinity of the outer surface of the third gear 8, and an auxiliary arm 12 is mounted on the other end of the arm 10 via pin 11 rotatably through a shaft 13, the longitudinally long arm for lower wiper 14 is mounted, on the both ends of which a wiper 15 for the middle reflecting board and the wiper 16 for the lower reflecting board are installed via pin 15a and 16a; is installed in the case with the reflecting board in the front, and the windmill 2 and each wiper are installed in the position in front of the case. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
