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1. 发明专利

JP2002275802A LADDER-LIKE SLEEPER 失效
公开(公告)号：JP2002275802A
公开(公告)日：2002-09-25
申请号：JP2001117489
申请日：2001-03-12
申请人： HIGASHI NIPPON RYOKAKU TETSUDO , SUMIHATSU KK
发明人： HANAWA MITSUO , HARADA AKIHISA , HORI YUICHIRO , KURASHIGE MASAKAZU , TERADA TOKUYUKI , AMATSU MAKIHITO , OTA SADAOMI
IPC分类号： E01B3/22 , E01B3/46
摘要： PROBLEM TO BE SOLVED: To provide a ladder-like sleeper for relieving and reducing pressure applied to the sleeper at train passing time by arranging the sleeper in the rail lengthwise direction, reducing pressure applied to a roadbed by enlarging the contact area of the sleeper and the roadbed, making the sleeper unmovable by increasing resistance force when lateral directional force is applied to a rail by enlarging the rail directional cross-sectional area of the sleeper, and making the sleeper unmovable when inverse directional force is applied to the rail since clearance between the sleepers is eliminated by continuously integrating the sleeper in a ladder shape. SOLUTION: This ladder-like sleeper 1 is formed by integrally combining a lateral sleeper 2 group at a specific interval between left and right longitudinal sleepers 3.

2. 发明专利

JP2001049601A ELASTIC RAIL FASTENING DEVICE 失效
公开(公告)号：JP2001049601A
公开(公告)日：2001-02-20
申请号：JP25473599
申请日：1999-08-05
申请人： SUMIHATSU KK
发明人： KURASHIGE MASAKAZU , AMATSU MAKIHITO , OSAWA TAKESHI
IPC分类号： E01B9/30 , E01B9/34
摘要： PROBLEM TO BE SOLVED: To provide an elastic rail fastening device which receives a load with a spring in normal cases, receives an excessive load with a portal gate of a floor plate when the excessive load is generated, to thereby eliminate damage of a clip and a danger of derail due to an enlarged track width, and has its clip preliminarily set at the floor plate and shifted and fitted when a rail of a laid turnout is set, without completely detaching the clip when the rail is exchanged. SOLUTION: A clip receiving portal gate 2 has wedging groove 2b for an external folding edge of a wire spring clip, formed inside each of gate columns 2a, and the portal gate 2 is arranged on a floor plate 1 in one body. A rail brace 3 which has its rear edge lower corner engaged with a stepped tooth profile locking washer 4, in a halving manner, is inserted into a passage space of the portal gate 2, and its front edge 3a is abutted on an upper web and a base of a rail R, followed by squeezing a central ridge 5a of an almost W- shaped bent wire spring clip 5 from a gap between an upper surface of the rail brace 3 and a bridge 2c of the portal gate 2. Thus, the rail brace 3 is suppressed and the external folding edge 5b of the clip 5 is fitted into the wedging groove 2b.

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