Short-circuiting device for an electric railway system having a conductor rail for supplying power to drive the vehicles
US7143954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Jul 6, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60M1/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A short circuiting device for an electric railway system having a conductor rail for supplying electric power to drive the vehicles. The function of the device is to provide a short circuit between a track rail and the conductor rail. The short circuiting device contains a first contact element providing a face to make contact with the track rail and a contact arm that is coupled to the contact element via a jointed connection and has a contact face for making contact with the conductor rail. The jointed connection is a multi-hinged connecting facility containing two levers which are joined to each other via a knee-type joint and joined via the respective first and second connection hinges to the contact element and the contact arm. One of the levers is in the form of a closing lever and the shape and arrangement of the levers and hinged joints is such that by executing a rotational movement with the closing lever, and via this, movement of the knee-type joint about the axis of the connection hinge related to the closing lever, the contact element and the contact arm can be brought together thus making electrical contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.