Federstabförmiger Clip-Befestiger zur Schienenbefestigung

Details

Veröffentlichungs-Nr.

EP4368775

Aktenzeichen

EP23020340

Anmeldetag

6. Juli 2023

Veröffentlichung

5. März 2025

Erteilung

5. März 2025

Rechtsraum

EP

IPC

E01B9/30

Abstract

The invention relates to a design of a track structure for railways, namely to a design of a spring rod-shaped clip fastener for a use in intermediate rail fastenings for pressing a rail against a rail support. The spring rod-shaped clip fastener for a rail fastening is made of a resilient rod bent to form a single B-shaped part in the projection onto a horizontal plane, which is symmetrical relative to the transverse axis and consists of sections radially mated therebetween in the projection onto a horizontal plane, said sections comprising a section of resting on a rail, which is rectilinear in the projection onto a horizontal plane and changes on two opposite sides along rounding radii into side sections located perpendicularly to a track centerline and being rectilinear in the projection onto a horizontal plane, said side sections change into radial, in the projection onto a horizontal plane, sections of resting on a thrust member of the rail fastening, which change into end sections directed with their ends towards the section of resting on the rail and rectilinear in the projection onto a horizontal plane; the section of resting on the rail is made, in its longitudinal profile, convex radially with two edge points of resting on the rail; the sections of resting on the thrust member of the rail fastening are made radially concave in their longitudinal profile, and the side sections and the end sections are made radially convex in their transverse profile; and a value of an inner radius of the side sections in the transverse profile of the clip fastener is less than a value of an inner radius of the end sections. The technical effect is a higher stability of a force of pressing a rail against a rail support provided by the spring rod-shaped clip fastener due to its designed having complex spatial geometry, which reduces its stiffness, while maintaining its pressing force, due to an increased resilient motion of the clip fastener, and, simultaneously, provides the possibility of reducing stress concentration and raise the efficiency of using the material of the clip fastener owing to making a greater length of the rod operable.

Anmelder

Firma

Joint Stock Company "Russian Railways"

Land

🇷🇺 Russland

Fachgebiete