Patent ID: 7753400
Filing Date: 2010-07-13
Classification: B60G

Abstract:
1. A multi-axle leaf spring suspension comprising: a first leaf spring pivotally connected to a vehicle frame; a second leaf spring pivotally connected to a vehicle frame; an equalizer having a first arm portion and a second arm portion, the first arm portion and the second arm portion being pivotally moveable with respect to each other about a common pivot; the first arm portion comprising arms that extend from a pivot portion and describe an angle (θ) centered with respect to the pivot portion in the range of approximately 30° to approximately 60° between the arms; the second arm portion comprising arms that extend from the pivot portion and describe an angle (θ) centered with respect to the pivot portion in the range of approximately 30° to approximately 60° between the arms; a polymeric spring member compressively disposed between the first arm portion and the second arm portion; the first leaf spring pivotally connected through a moveable linkage to the first arm portion; the second leaf spring pivotally connected through a moveable linkage to the second arm portion; and the equalizer pivotally engaged with a vehicle frame at the common pivot.