Patent ID: 6834874
Filing Date: 2004-12-28
Classification: B60G

Abstract:
A trailer suspension system for absorbing shock to a trailer when the trailer travels over a surface, the trailer suspension system comprising:at least one suspension assembly being adapted for being coupled between a frame of the trailer and an axle of the trailer, said suspension assembly being adapted for absorbing shock from the axle of the trailer; said suspension assembly comprising a frame mounting assembly, said frame mounting assembly being adapted for being coupled to the frame of the trailer; said suspension assembly comprising an axle mounting assembly being pivotally coupled to said frame mounting assembly, said axle mounting assembly being adapted for being coupled to the axle of the trailer; said suspension assembly comprising an air spring assembly, said air spring assembly being coupled between said frame mounting assembly and said axle mounting assembly such that said air spring assembly is adapted for damping movement of said axle mounting assembly when the trailer is traveling over a surface; said axle mounting assembly comprising an arm spring, said arm spring being pivotally coupled to said frame mounting assembly, said air spring assembly being couple to said arm spring opposite said frame mounting assembly such that said air spring assembly is compressed between said arm spring of said axle mounting assembly and said frame mounting assembly for absorbing shock when wheels of a trailer encounter a rough portion of the surface; said axle mounting assembly comprising a saddle member, said saddle member being coupled to said arm spring, said saddle member being adapted for being coupled to the axle of the trailer such that said saddle member couples the axle of the trailer to said arm spring of the axle mounting assembly; said saddle member of said axle mounting assembly comprising a plate portion and a saddle portion, said plate portion being coupled to said saddle portion, said plate portion of said saddle member being coupled to said arm spring, said saddle portion being adapted for being coupled to the axle of the trailer, said saddle portion extending around less than three quarters of a circumference of the axle; and said saddle portion comprising pair of side edges, each of said side edges being positioned substantially parallel with a longitudinal axis of said saddle portion, each of said side edges of said saddle portion comprising a concave arcuate depression extending into said saddle portion from the associated one of said side edges, said concave arcuate depression of each of said side edges being adapted for optimizing an amount of welding area between said saddle portion and the axle of the trailer.