Trailing arm suspension with lever arm

Details Trailing arm suspension with lever arm Trailing arm suspension with lever arm

B - Operations, Transporting

62

D

B62D 61/12 (2006.01) B60G 9/00 (2006.01) B60G 11/56 (2006.01)

Patent

CA 2188178

A retractable suspension (10) com- prises a trailing arm (22) pivotally mounted to a vehicle frame (12), an air spring (30) mounted between the trailing arm and the frame, and a lifting device (32) mounted between the trailing arm and the frame. The lifting device (32) comprises a strut (60) pivotally mounted between the frame (12) and a lever arm (64) that is fixedly mounted to the trailing arm (22). The strut (60) applies a force to the lever arm (64) that imparts a moment to the trailing arm (22) to urge the trailing arm and attached wheels (14) to a retracted position. The force of the air spring (30) can be adjusted to counter the upward movement of the wheels (14).

Une suspension rétractable (10) comprend un bras longitudinal (22) monté pivotant au châssis (12) d'un véhicule, un ressort à air comprimé (30) monté entre le bras longitudinal et le châssis, et un dispositif de levage (32) monté également entre le bras longitudinal et le châssis. Le dispositif de levage (32) comprend une jambe élastique (60) montée pivotante entre le châssis (12) et un bras levier (64) qui est monté inamovible sur le bras longitudinal (22). La jambe élastique (60) exerce une force sur le bras levier (64) qui communique un couple au bras longitudinal (22) afin de pousser celui-ci et les roues rattachées (14) vers une position rétractée. La force du ressort à air comprimé (30) peut être réglée afin de stopper le mouvement ascendant des roues (14).

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