Wishbone-shaped linkage component and suspension systems...

B - Operations – Transporting – 60 – G

Patent

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Details

B60G 7/02 (2006.01) B60G 9/00 (2006.01)

Patent

CA 2606175

A four-point wishbone-shaped linkage is disclosed for use in a suspension system. The wishbone-shaped linkage includes a base and two limbs that extend away from the base creating a large mouth open area between the limbs and base. The base includes a bar and bushing assembly extending laterally therethrough. Also disclosed are suspension systems incorporating the four- point wishbone-shaped linkage. The suspension system connects an axle to a vehicle chassis that has a first frame member extending longitudinally on one side of the chassis and a second frame member extending longitudinally on the opposite side of the chassis. The first and second frame hangers are mounted to the first and second frame member, respectively. A cross member connects the first and second frame hangers. In addition to the wishbone-shaped linkage, the suspension system includes first and second air springs connected to first and second frame members respectively and to the axle. A shock absorber is likewise connected to each frame member and axle. Torque rods are also included. One torque rod is pivotally connected to the axle and first frame hanger and a second torque rod is pivotally connected to the axle and second frame hanger. The wishbone-shaped linkage is pivotally connected to the axle and cross member.

L'invention concerne une liaison en forme de Y à quatre pointes utilisée dans un système de suspension. La liaison en forme de Y comprend une base et deux membres qui s'étendent à partir de la base créant une grande bouche ouverte entre les membres et la base. La base comprend une barre et un ensemble de raccordement s'étendant latéralement à travers celle-ci. L'invention concerne également des systèmes de suspension contenant la liaison en forme de Y a quatre pointes. Le système de suspension relie un axe à un châssis de véhicule qui possède un premier élément de trame s'étendant longitudinalement d'un côté du châssis et un second élément de trame s'étendant longitudinalement du côté opposé du châssis. Les premier et second supports de trame sont montés respectivement sur le premier et le second élément de trame. Un élément transversal relie les premier et second supports de trame. Outre la liaison en forme de Y, le système de suspension comprend des premier et second ressorts pneumatiques reliés respectivement aux premier et second éléments de trame et à l'axe. Un amortisseur est relié de la même manière à chaque élément de trame et axe. Des bielles de poussée sont également inclus. Une bielle de poussée est reliée de façon pivotante à l'axe et au premier support de trame et une seconde bielle de poussée est reliée de façon pivotante à l'axe et au second support de trame. La liaison en forme de Y est reliée de façon pivotante à l'axe et à l'élément transversal.

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