COMING-OFF PREVENTING MEANS OF WIRE SPRING IN RAIL FASTENER

摘要

PROBLEM TO BE SOLVED: To provide a coming-off preventing means of a wire spring in a rail fastener, which is easily detachable at a work site and dispenses with processing for coming-off prevention on the rail fastener itself without the use of a specific jig, while reducing a component-manufacturing cost and a component management cost.;SOLUTION: A first binding band 60 of the coming-off preventing means 50 of the wire spring has a band 62 inserted into the through-hole 26 of a spring support body 16, wound once around a periphery of a shoulder 34 of a spring support body 16, and then inserted into a band insertion hole 64. A second binding band 70 has a band 72 wound once around a periphery of a second arm 44 of the wire spring 18 and inserted into a band insertion hole 74. Subsequently, when the left end of the band 72 projecting from the band insertion hole 74 is pulled, an engaging part 75 is engaged with a band-locking part 73 in the band insertion hole 74, thereby causing the second binding band 70 to be firmly fastened to the wire spring 18.;COPYRIGHT: (C)2011,JPO&INPIT