Adjustable suspension system for off-road vehicle
First Claim
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1. A support assembly comprising:
- a first support frame including a first bearing surface;
a second support frame spaced a vertical distance from the first support frame;
a suspension including a plurality of suspension arms coupled at a first end to the first support frame and coupled at a second end to the second support frame;
a biasing member coupled to the first support frame and having a first end and a second end, the first end bearing against the first bearing surface;
a lever coupled to the second support frame at a lever first end and pivotable with respect to the second support frame, the lever having a second bearing surface, the second end of the biasing member bearing against the second bearing surface; and
a user actuable control coupled to the lever to adjust the angle of the lever with respect to horizontal upon actuation of the user actuable control,wherein the second end of the biasing member moves along the second bearing surface as the first support frame moves with respect to the second support frame,wherein the lever is pivotable between a first position in which the lever is at a first angle with respect to horizontal, and a second position in which the lever is at a second angle with respect to horizontal,wherein when the lever is in the first position, the first end of the biasing member is moveable along the lever at the first angle with respect to horizontal between a first upper position and a first lower position, wherein the first upper position is spaced a first horizontal distance and a first vertical distance away from the first lower position, the biasing member is deflected a first distance between the first upper position and the first lower position,wherein when the lever is in the second position, the first end of the biasing member is moveable along the lever at the second angle with respect to horizontal between a second upper position and a second lower position, wherein the second upper position is spaced a second horizontal distance and a second vertical distance away from the second lower position, the biasing member is deflected a second distance between the second upper position and the second lower position, andwherein the first angle is greater than the second angle and the second deflection is greater than the first deflection.
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Abstract
A support assembly includes a first support frame having a first bearing surface, and a second support frame spaced a vertical distance from the first support frame. A biasing member is connected to the first support frame and includes a first end and a second end. The first end bears against the first bearing surface. An adjustment assembly is connected to the second support frame and is adjustable with respect to the second support frame. The second end of the biasing member bears against the adjustment assembly.
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Citations
20 Claims
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1. A support assembly comprising:
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a first support frame including a first bearing surface; a second support frame spaced a vertical distance from the first support frame; a suspension including a plurality of suspension arms coupled at a first end to the first support frame and coupled at a second end to the second support frame; a biasing member coupled to the first support frame and having a first end and a second end, the first end bearing against the first bearing surface; a lever coupled to the second support frame at a lever first end and pivotable with respect to the second support frame, the lever having a second bearing surface, the second end of the biasing member bearing against the second bearing surface; and a user actuable control coupled to the lever to adjust the angle of the lever with respect to horizontal upon actuation of the user actuable control, wherein the second end of the biasing member moves along the second bearing surface as the first support frame moves with respect to the second support frame, wherein the lever is pivotable between a first position in which the lever is at a first angle with respect to horizontal, and a second position in which the lever is at a second angle with respect to horizontal, wherein when the lever is in the first position, the first end of the biasing member is moveable along the lever at the first angle with respect to horizontal between a first upper position and a first lower position, wherein the first upper position is spaced a first horizontal distance and a first vertical distance away from the first lower position, the biasing member is deflected a first distance between the first upper position and the first lower position, wherein when the lever is in the second position, the first end of the biasing member is moveable along the lever at the second angle with respect to horizontal between a second upper position and a second lower position, wherein the second upper position is spaced a second horizontal distance and a second vertical distance away from the second lower position, the biasing member is deflected a second distance between the second upper position and the second lower position, and wherein the first angle is greater than the second angle and the second deflection is greater than the first deflection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A support assembly comprising:
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a first support frame including a first bearing surface; a second support frame spaced a vertical distance from the first support frame; a torsion spring coupled to the first support frame and having a first end and a second end, the first end bearing against the first bearing surface; and an adjustment assembly coupled to the second support frame and adjustable with respect to the second support frame, the second end of the torsion spring bearing against the adjustment assembly. - View Dependent Claims (12, 13)
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14. A support assembly comprising:
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a first support frame including a first bearing surface; a second support frame spaced a vertical distance from the first support frame; a biasing member coupled to the first support frame and having a first end and a second end, the first end bearing against the first bearing surface; and an adjustment assembly coupled to the second support frame and adjustable with respect to the second support frame, the second end of the biasing member bearing against the adjustment assembly, wherein the adjustment assembly comprises a user actuable control, a lever and a roller, wherein the user actuable control is laterally moveable and bears against the lever to pivot the lever within a range of angles with respect to vertical, and wherein the roller is coupled to the biasing member. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification