Method and apparatus for a low-profile suspension system

B - Operations – Transporting – 60 – G

Patent

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Details

B60G 17/052 (2006.01)

Patent

CA 2633893

A method and apparatus for a low-profile suspension system, which provides coarse and fine suspension control to an object supported by the low-profile suspension system. Coarse suspension is provided to adaptively control a position of the object through pneumatic support devices. Pneumatic pressure is adaptively increased in the pneumatic support devices to support an increasing weight of the object, while pneumatic pressure is adaptively decreased in the pneumatic support devices to support a decreasing weight of the object. Fine suspension control is provided through rotational actuation of a shock absorbing device through a right - angle gear drive. By rotationally actuating the shock absorbing device, a range of stroke of the shock absorbing device along a vertical direction is minimized. Position equalization control is further provided to maintain a position of the object along an axis that is orthogonal to the coarse and fine suspension axis.

La présente invention concerne un procédé et un appareil destinés à un système de suspension de faible hauteur qui permet de commander de manière grossière ou fine un objet supporté par le système de suspension de faible hauteur. La suspension grossière permet de commander de manière adaptative une position de l'objet au moyen de dispositifs de support pneumatiques. La pression pneumatique est adaptativement augmentée dans les dispositifs de support pneumatiques pour supporter ainsi une masse plus importante de l'objet, alors que la pression pneumatique est adaptativement réduite dans les dispositifs de support pneumatiques pour supporter ainsi une masse plus faible de l'objet. La commande fine de la suspension est assurée par la mise en rotation d'un dispositif amortissant les chocs au moyen d'un engrenage de commande à angle droit. La mise en oeuvre par rotation du dispositif amortissant les chocs permet de réduire au maximum la longueur de déplacement du dispositif amortissant les chocs dans la direction verticale. Une commande d'égalisation de la position est également prévue pour maintenir une position de l'objet sur un axe qui est orthogonal à l'axe de la suspension grossière et fine.

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