Rail Fasteners TRIZ Cases

A cast anchoring device uses a sealing plate to block concrete ingress during sleeper production.

A rail fastening base plate uses a threaded clamping screw guided through an opening to exert elastic hold-down force on the rail foot.

Raised nooses intercept the rail before it contacts the screw head, preventing bending and friction during automated track construction.

An acute-angle shim replaces complex concrete constructions to mount canted rails, reducing manufacturing complexity while maintaining stable orientation.

A reversible rail brace assembly with multiple fishing surfaces accommodates light and heavy weight stock rails on a single plate.

Replacing conductive metal with insulating components prevents shorting in railroad tracks, reducing maintenance costs and improving reliability.

A railway intermediate layer combines two materials to provide elastic decoupling at low frequencies and dynamic stiffening at high frequencies.

Inclined loading surfaces in the support shoulder reduce horizontal length while maintaining 8 kN clamping force.

A plastic rail base plate embeds a metal insert piece to distribute high loads, preventing material breakage under high tightening torques.

L-shaped retaining end on e-clip engages pre-embedded steel holder opening to prevent clip failure under heavy haul railway lateral loads.

Movable clamps with non-parallel grooves adjust module positions on rails, reducing vibration loosening and maintenance time.

Axially compressible elastic hollow body fastener joins structural members through lateral deformation.

Segmented anchor bolts allow quick replacement without demolishing the concrete foundation, reducing tram service disruption time.