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US 10,919,354 B2Granted
Tandem suspension system
AssigneeReyco Granning, LLC
InventorsJohn Stuart, Rajakumar Subbarayalu, John Hinz
Life of this patent
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Abstract
A tandem suspension system. At least two parallel axles are connected via two eyeleted leaf springs. The eyeleted leaf springs have ends that terminate in eyelets. Each eyelet receives a bushing and adjustable pin. A bracket secures the axles to the eyeleted leaf springs. The eyeleted leaf springs are camelback leaf springs, planar leaf springs or bent leaf springs. Additional leaf springs are also provided.
Claims18
A tandem suspension system comprising:
- at least two axle assemblies being disposed parallel to each other, the at least two axle assemblies each including a first end and a second end;
- at least two eyeletted-leaf springs, each eyeletted-leaf spring having a first end and a second end, wherein at least one the first end and the second end of each eyeletted-leaf springs is curved to form an eyelet;
- a bushing disposed in each of the eyelets;
- a rotatable pin disposed in each bushing;
- and,
- a bracket attached to each end of each pin with a fastener having a longitudinal axis transverse to a longitudinal axis of pin,
- wherein each bracket comprises an upper portion with a U-shaped channel receiving one of the first or second ends of the at least two axle assemblies and a lower portion with a clevis portion having two arms, each arm receiving one of the fasteners.
4 more elements
A tandem suspension system comprising:
- a frame with two parallel main members,
- two trunnions, each parallel member coupled to a trunnion;
- two eyeletted-leaf springs, each eyeletted-leaf spring coupled to one of the two trunnions, and each eyeletted-leaf spring having a first end and a second end, wherein the first end and the second end of the two eyeletted-leaf springs are curved to form an eyelet;
- a rotatable pin disposed in each eyelet;
- and,
- two axle assemblies disposed parallel to each other, each axle assembly including a first end and a second end,
- wherein the first end of a first axle assembly is coupled to the first end of a first eyeletted-leaf spring and the second end of the first axle assembly is coupled to the first end of a second eyeletted-leaf spring, and
- wherein the first end of the second axle assembly is coupled to the second end of the first eyeletted-leaf spring and the second end of the second axle assembly is coupled to the second end of the second eyeletted-leaf spring,
- wherein each end of the eyeletted-leaf springs is coupled to a bracket, the brackets including a channel in an upper portion receiving one of the ends of the two axle assemblies,
- wherein each rotatable pin has two ends each coupled to an arm of a clevis in a lower portion of one of the brackets with a fastener, each fastener having a longitudinal axis transverse to a longitudinal axis of said pin.
7 more elements
Dependencies are inferred from the claim text.