Two directional crossing gate arm protection assembly

Details Two directional crossing gate arm protection assembly Two directional crossing gate arm protection assembly

B - Operations, Transporting

61

L

B61L 29/04 (2006.01) B61L 29/10 (2006.01) E01F 13/06 (2006.01)

Patent

CA 2453371

A railroad crossing gate assembly includes a gate arm adapter. The gate arm adapter is pivotally mounted to allow a lowered gate arm to rotate either toward or away from a railroad crossing in response to a perpendicular force in a horizontal plane. The gate arm mechanism further includes multiple interchangeable spring assemblies that generate a return force to bring a displaced gate arm back to its normal operating position. The gate arm mechanism also includes at least two latch hook assemblies for selectively latching the gate arm in its normal position and controlling the rate of return of the gate arm from a displaced position through application of a pivotally leveraged force to a braking surface of the adapter.

Passage à niveau de voie ferrée comprenant un adaptateur de bras de barrière. L'adaptateur est monté sur un pivot afin de permettre à un bras de barrière abaissé de tourner vers le passage à niveau ou de s'en dégager en réaction à une force perpendiculaire sur le plan horizontal. Le mécanisme du bras de barrière comporte également plusieurs ensembles de ressorts qui créent une force de retour pour ramener le bras de barrière déplacé à sa position de fonctionnement normale. Le mécanisme du bras de barrière comporte aussi au moins deux crochets à clenche pour verrouiller de façon sélective le bras de barrière à sa position normale et en contrôler le taux de retour à partir d'une position déplacée en exerçant une force de rotation par effet de levier sur une surface de freinage de l'adaptateur.

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