Magnetic rail brake

B - Operations – Transporting – 61 – H

Patent

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Details

B61H 7/08 (2006.01)

Patent

CA 2501216

A magnetic rail brake for a rail vehicle is disclosed of the type comprising a magnet (5) supported from the rail vehicle a small distance above the rail (4). The magnet is supported by springs which are overridden on actuation of the magnet. A guide assembly guides the magnet for movement in a substantially vertical plane while allowing limited lateral movement. The magnet is provided with an extension arm (20) arranged to contact the rail vehicle at a distance from the magnet which is substantially greater than either the maximum extent of vertical movement or the maximum extent of lateral movement. By controlling the motion of the extension arm within these limits of lateral and vertical motion, unwanted and excessive tilting of the magnet can be avoided.

La présente invention se rapporte à un frein magnétique sur rail du type comprenant un aimant (5) supporté par le véhicule sur rail à une faible distance au-dessus du rail (4). L'aimant est supporté par des ressorts qui sont neutralisés lorsque l'aimant fonctionne. Un ensemble de guidage guide l'aimant pour qu'il se déplace sur un plan sensiblement vertical tout en autorisant un mouvement latéral limité. L'aimant comporte un bras d'extension prévu pour se trouver en contact avec le véhicule sur rail à une distance de l'aimant qui est sensiblement supérieure à la portée maximale du mouvement vertical ou bien à la portée maximale du mouvement latéral. Le fait de restreindre le mouvement du bras d'extension dans ces limites de mouvement latéral et vertical permet d'éviter l'inclinaison involontaire et excessive de l'aimant.

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