| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the confirmation of which of a connecting position and a non-connecting position a link is situated in by providing a detector for operating a display device according to the position switching operation of the link. SOLUTION: A detector 23 is linked to a link 21 through a wire for linking operation 24 so that a limit switch 23B is ON-operated according to the operation of the link 21 to a non-connecting position, and OFF-operated according to the operation of the link 21 to a connecting position. A lamp 25 as a display device B installed to a steering panel 22 is lighted according to the ON operation of the limit switch 23B, and extinguished according to the OFF operation thereof. |
