| 摘要 |
A torsion spring suspension assembly for vehicle frames having load supporting arms rated to the load capacity desired in which the torsion spring is formed with a cantilever arm section and a coil section provided with a coil section bushing of predetermined material, hardness, and configuration to impart to the coil section substantially the same stress as the cantilever section has at the zone where it meets with the coil section, thereby overcoming the usual disadvantages of the normally different stresses in the torsion spring and improving the load carrying capacity of the suspension system without wasting spring material or without stressing either the coil or cantilever sections beyond the design strength characteristics. The torsion spring in the suspension assembly is mounted between the axle and the frame such that the cantilever arm sections are connected to the frame to carry the load and accommodate elongation during spring flexing.
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