Points comprising a reinforced switch tongue blade
US7387280B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 16, 2003 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | May 13, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B7/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a switch including a main track and a branch track, wherein one rail of each track is each configured as a tongue rail and movable into abutment on the respective stock rail, at least one stock rail (1), in its region of abutment on the tongue rail (2), is designed to have a reduced rail head width as compared to the region located outside said region of abutment, wherein the rail head width, starting from the tip (3) of the tongue, decreases as far as to a point (4) at which the carrying wheel comes into lateral contact with the tongue rail (2) and increases in the region following thereupon, and that the tongue rail (2) is designed to be reinforced in cross section towards the stock rail (1) according to the reduction in the width of the stock rail head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.