Strap for the quick fastening of a railroad rail and tie equipped with such a strap

A fastening strap for the quick fastening of a railroad rail to ties made of material selected from the group consisting of concrete, wood, plastic or metal, the said strap being composed of a material selected from the group consisting of steel or reinforced plastic, said strap being a rod having a vertical rectilinear part (1) terminating in an eccentric heel (2) intended for interacting with a catching means (27;

• 34) associated with the tie, and a curved part (4 to 9) which forms a spring and the end (10) of which is intended to press onto a flange of the rail after the rotation of the strap about its vertical part to an installed position, during which rotation the said end moves on a ramp intended for tensioning that part of the strap forming a spring and for leading it onto the flange of the rail, characterized in that the curved part of the strap has a form both undulated vertically and wound about the vertical part (1) of the rod, in such a way that it has an intermediate bearing point (6) formed by the bottom of a first undulation and a main bearing point (10) located near the end of the strap formed by a second undulation, these two bearing points being disposed on mutually opposite sides of the vertical part, and at different distances from this vertical part, the radius of revolution of the intermediate bearing point (6) being substantially smaller than the radius of revolution of the main bearing point (10).