| 摘要 |
An upright protective frame including opposite side upstanding portions interconnected at their upper ends by means of a connecting portion extending and connected therebetween is provided. The lower end portions of the upstanding opposite side portions of the protective frame include structure for anchoring to the lower opposite side rearwardly projecting portions of a bicycle frame between which the rear wheel of the bicycle is journaled and structure is provided for bracing vertical mid-portions of the opposite side upstanding portions of the protective frame relative to the upper rear portion of a bicycle frame from which the seat of the bicycle is supported. In addition, the structure provided for connecting the lower ends of the upstanding side portions of the protective frame to the opposite side rearwardly projecting portions of the bicycle frame between which the rear bicycle wheel is conventionally journaled includes a generally horizontally disposed and rearwardly opening semi-cylindrical portion which projects forwardly of the lower end portions of the upstanding opposite side portions of the protective frame and has its central portion provided with structure for anchoring to the upper rear portion of the bicycle frame from which the bicycle seat is conventionally supported.
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