| 摘要 |
PROBLEM TO BE SOLVED: To obtain a short-nose movable crossing structure which is equivalent in function to a nose movable rail, and can be laid in an easily replaced manner in a fixed-crossing laying location by being capable of being constituted with the overall length equivalent to that of fixed crossing. SOLUTION: This short-nose movable crossing structure comprises a pair of fixed wing rails 4, the movable nose (short-nose) rail 2 which is positioned between the wing rails, and the pair of fixed nose rails 3 which can come into contact with the movable nose rail 2. The movable nose rail 2 which is constituted in such a diamond shape as to be long on the side of contact with the fixed wing rail and short on the side of contact with the fixed nose rail 2 is formed in such a manner as to be rotatable on a cylindrical rotating column 19b (rotating implement 19) as a supporting point which is formed on an undersurface. COPYRIGHT: (C)2007,JPO&INPIT
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