To provide a bolt-nut locking structure for a railroad vehicle capable of keeping maintainability while suppressing increase of the number of components.
This bolt-nut locking structure 1 for a railroad vehicle comprises members 4 and 5 to be fastened, a female screw member 3, a male screw member 2, a locking member 6 and a fastening indication member 7. The members 4 and 5 to be fastened are provided with insertion holes 40 and 50 for inserting the male member 2 thereinto. The fastening indication member 7 is provided with a through-hole 70 for inserting the male screw member 2 thereinto. By fastening the male member 2 to the female screw member 3 through the fastening indication member 7 and the locking member 6, a bent part 71 of the fastening indication member 7 is flatly stretched by the locking member 6. A detent part 72 of the fastening indication 7 abuts on an end face 51 of the member 5 to be fastened. A fastening state confirmation part 73 of the fastening indication member 7 is raised in an erected form on the member 5 to be fastened.
SHIGEYAMA MASAAKI
YAMAMOTO TAKAHISA
NAGAREKAWA HIROMITSU
FURUKAWA HISAFUMI
OSHITA KENJI
OKAMOTO KENJI
TORII AKIHIKO
ITO HAJIME
WATANABE YOSHIYA
TOKAI RYOKAKU TETSUDO KK
| JPS49135681U | 1974-11-21 | |||
| JPS6297314U | 1987-06-20 | |||
| JP2001187911A | 2001-07-10 | |||
| JPS5820724U | 1983-02-08 |