Lifting assemblies including trapezoidal strong back beam...

B - Operations – Transporting – 66 – C

Patent

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Details

B66C 5/00 (2006.01) B66C 9/00 (2006.01) B66C 17/00 (2006.01) B66C 19/00 (2006.01)

Patent

CA 2743153

Bridge crane assemblies, trapezoidal strong back beam systems and carriages for bridge crane assemblies are disclosed. According to some embodiments, a bridge crane assembly comprises a trapezoidal beam and a bridge attachable to an underside of the trapezoidal beam. The bridge comprises an attachment means for supporting a lifting device for the crane assembly. At least one guide track is attachable to a support structure and at least one carriage is longitudinally movable along the at least one guide track. Each carriage comprises a pair of spaced apart mounting plates and a plurality of rollers rotatably mounted to the mounting plates in a substantially vertical orientation. An axle extends between and is pivotally secured to the mounting plates. A displacement arm has a first end pivotally coupled to the axle and at least one second end for pivotal connection to the bridge.

L'invention concerne des ensembles pont roulant, des systèmes de poutres arrière résistantes trapézoïdales et des chariots pour ensembles pont roulant. Selon certains modes de réalisation, un ensemble pont roulant comprend une poutre trapézoïdale et un pont pouvant être fixé à une face inférieure de la poutre trapézoïdale. Le pont comprend des moyens de fixation pour supporter un dispositif de levage pour l'ensemble pont roulant. Au moins un rail de guidage peut être fixé à une structure de support et au moins un chariot est mobile longitudinalement le long du ou des rails de guidage. Chaque chariot comprend une paire de plaques de montage espacées et une pluralité de rouleaux montés rotatifs sur les plaques de montage dans une orientation sensiblement verticale. Un axe s'étend entre les plaques de montage et est fixé de façon pivotante à ceux-ci. Un bras de déplacement comporte une première extrémité couplée pivotante à l'axe et au moins une seconde extrémité pour assurer une liaison pivotante au pont.

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