| 摘要 |
PROBLEM TO BE SOLVED: To reduce the striking sound in the transfer of a wheel between rail parts and to improve the durability. SOLUTION: This rail 30 comprises a substantially V-shaped wing part 38 is formed opposite to lateral nose parts 34 and 36 while putting a missing line part 32 there between, and the wheel 18 transverses between the left nose part 34 and a right wing piece 40 in the wing part 38 or between the right nose part 36 and a left wing piece 42 in the wing part 38. The gradient of the first rail tread 44 of the left nose part 34 is set to substantially the same as the first gradient S1 of the first wheel tread 20 of the wheel 18. The gradient of a second rail tread surface 46 formed in the wing part 38 of the area where the wheel 18 travels together in the transfer of the wheel 18 from the lateral nose part 34, 36 to the corresponding wing piece 40, 42 is set to substantially the same as the second gradient S2 of the second wheel tread 22 of the wheel 18.
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