Patent ID: 8302877

Claim:
A wheel guard device comprises a protection rail installed inside or outside a gauge and a support member fixed to a sleeper or a concrete slab track, wherein the protection rail is held by a hold member which can turn around a central axis supported by the support member as a turning center between a main rail and the inside or the outside of the gauge on the sleeper or the concrete slab track, and the support member is engaged with the hold member by means of an engaging member which is inserted into and passed through penetration holes provided at the support member and the hold member through turning the hold member toward the main rail around the central axis as turning center on the sleeper or the concrete slab track, and the protection rail can be shunted inward or outward of the gauge by turning the hold member toward the inside or the outside of the gauge around the central axis as turning center on the sleeper or the concrete slab track after disengagement of the engaging member by pulling out from the penetration holes, and the main rail and the protection rail are curved and the central axis can move along the inside of long slots provided at the support member and the hold member in the direction of the gauge.