Patent · US Active

Roller support for the point rail of a railroad switch

US8608115B2 · kind B2 · utility

3Cited by

4References

9Claims

0Family size

Assignee

SCHWIHAG AG · CH

Inventors

Tilmann Ruetzel · Konstanz, DE
Frank Meyer · Stockach, DE
Bernd Wientges · Konstanz, DE

Key dates

Filing date	Jun 30, 2011
Grant date	Dec 17, 2013
Priority date	—
Expiry date	Nov 10, 2031

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE01B7/02
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A point rail is shiftable transversely on an upper face of a rail base plate between an engaged position bearing on a longitudinally extending and fixed stock rail and a disengaged position spaced transversely of the stock rail. A roller assembly has a mounting plate securable to the rail base plate, a roller support pivotal about a support axis on the rail base plate, a roller carried on the roller support, and a spring biasing the roller upward with a predetermined spring force into a lift position with the roller projecting upward past the upper face for supporting the point rail on the roller. Thus this assembly supports the point rail and, in the engaged position, presses it against the support cleats and the stock rail and it is an integral part of one of the rail base plates.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.