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2. 发明专利

JPH0430002A ELASTIC TRACK PAD 失效
公开(公告)号：JPH0430002A
公开(公告)日：1992-02-03
申请号：JP13369890
申请日：1990-05-23
申请人： SONNEBIRU INTERN CORP
发明人： ROJIYAA POORU SONNEBUIRU
IPC分类号： E01B9/68
摘要： PURPOSE: To prevent the excess fatigue of a pad by forming an asymmetric sectional shape section in the rail width direction of the pad arranged between a rail and a sleeper and making resiliency in the cross direction asymmetric. CONSTITUTION: The center line of the rectangular pad S lengthened in the longitudinal direction in the same width as the bottom section of a rail R is conformed to a center in the cross direction of the pad S, and the upper side of the pad S is disposed onto a concrete sleeper T so that the lower side is directed to the inside on the outside of a track. Indented sections on the outside of the track of indented sections 1 to the center of the pad S are made smaller than internal indented sections in the pad S, and the outsides are reduced and the insides are enlarged in distortion in the vertical direction. The pad S is deformed within a range which does not extend a gage in a track external section by resultant force in the rail external direction transmitted from a passed train in a curve particularly and the asymmetry of the distortion of the pad S to the load increase of the track external section. Accordingly, gage extension can be prevented.

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