Patent ID: 7461851

Claim:
A vehicle comprising: a body frame including a main body frame and a separate sub-frame connected to the main body frame; wheel suspension devices supporting the body frame, the wheel suspension devices being provided on left and right sides of the vehicle, the wheel suspension devices including: the sub-frame; left and right lower arms each having a first end supported on the sub-frame for pivotal movement in a vertical direction and a second end extending outward from a side of the sub-frame; left and right knuckles each connected to the second end of the left and right lower arms, respectively, for pivotal movement in the vertical direction and arranged to support a wheel for rotation; and left and right upper arms each having a first end connected for pivotal movement in the vertical direction to the left and right knuckles, respectively, at a position above a connection portion connecting the left and right knuckles and the left and right lower arms, respectively, and extending inward from the first end; the body frame including the left and right elongated cushion units each having a first longitudinal end pivotally connected for pivotal movement to the left and right lower arms at a location inward from the second ends of the left and right lower arms; wherein second ends of said left and right upper arms and second longitudinal ends of said left and right cushion units are pivotally connected to said body frame and at least one of said second ends of said left and right upper arms and said second longitudinal ends of said left and right cushion units is pivotally connected to said sub-frame; and the sub-frame includes at least one connection member connecting the sub-frame to the main body frame and arranged to allow the sub-frame to pivot about a horizontal axis with respect to the main body frame.