| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable track pad which is easily inserted between a rail and a rail support body and has proper applicability and enables fixing strength of a track pad and a variable pad to be high in strength. SOLUTION: A thin fin-shaped rubber film 48 is annularly integrally provided along an external periphery of the track pad 34 formed of a rubber plate, and an engaging protrusion 52 is integrally formed at an external peripheral end around the whole periphery. The variable pad 36 which fills a gap between the track pad 34 and the rail by injection of a resin liquid of a reaction curable resin is constituted of a hard resin. An engaging recess 70 is annularly provided along the peripheral wall part 56, and the track pad 34 and the variable pad 36 are preliminarily integrally assembled before insertion based on engagement of the engaging protrusion 52 and the engaging recess 70. COPYRIGHT: (C)2007,JPO&INPIT
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