Two arms system

Details Two arms system Two arms system

B - Operations, Transporting

66

C

B66C 23/42 (2006.01) B66C 23/36 (2006.01) B66C 23/68 (2006.01) B66C 23/86 (2006.01)

Patent

CA 2282767

Unit cranes consist of three hinged arms (13-15), the middle arm (14) being in the form of a polygon comprising a number of units jointed together, the flexibility of the units being arranged by influencing the units internally. The object of the invention is to achieve improved traction curves and speed curves, and this is effected by influencing the movement of the units from the outside by means of a hydraulic mechanism (38).

L'invention concerne des unités grues comprenant trois bras (13-15) articulés. Le bras central (14) se présente sous forme de polygone composé d'un certain nombre d'unités qui sont reliées les unes aux autres et dont la flexibilité est réalisée par action à l'intérieur de ces unités. L'invention a pour objet d'améliorer les courbes de traction et les courbes de vitesse et ce, en agissant sur le mouvement des unités depuis l'extérieur au moyen d'un mécanisme hydraulique (38).

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