| 摘要 |
PROBLEM TO BE SOLVED: To provide a current collector for rolling stocks which includes slip-off preventing structures for preventing a mounting bolt from slipping off from a cover, when attaching and removing the cover. SOLUTION: A U-shaped fixture 2 including a U-shaped section and a special bolt 3 are provided in a mounting hole of the cover 1. The width of the facing sides of the U-shaped fixture is equal to the thickness of the cover; a screw hole and a hole larger than a bolt diameter are disposed coaxially for one side and the other side, respectively; and the mounting bolt is not fixed to the cover so that it is freely movable, on a cover surface with a clearance between the mounting hole of the cover and the special bolt. The special bolt does not include threads, other than a portion screwed into the screw hole of the current collector, and is not larger than the root diameter of an external thread. COPYRIGHT: (C)2011,JPO&INPIT |
