| 摘要 |
A rear suspension system for a two wheel cycle such as a bicycle or motorcycle having a vertically pivotable rear frame assembly to which the rear wheel is mounted. The rear frame assembly includes a primary swingarm which extends downwardly and rearwardly from a pivotable connection on the main frame. A rear wheel fitment is attached at the rear of this primary swingarm. A secondary swingarm is also fixed to the rear wheel fitment, and extends forwardly from the fitment at an angle below to the primary swingarm. The secondary swingarm mounts to the main frame via an attachment which has capability of permitting a change in vertical and horizontal location of the attachment point of the secondary swingarm, necessitated for rotation of the rear frame assembly about the main swingarm pivotable connection, while still providing lateral rigidity. Both swingarms pass along one side of the cycle only, with the rear wheel being mounted in a cantilever fashion from the rear wheel fitment which is also on the same one side. The system provides convenience in wheel and tire access, and also provides very high lateral and torsional rigidity in passing lateral loads from the rear tire contact patch to the main frame, due to the vertical spacing between the frame connections of the primary and secondary swingarms.
|
