| 摘要 |
A method for manufacturing a cycle or auto-cycle wheel rim includes employing a tubular braided fibre glass sleeve which is inflated internally so as to conform its shape to the inside of a mould. An inflatable sleeve is placed inside the braided glass fibre sleeve. An appropriate length of the assembly formed by the two concentric sleeves is placed in a mould which has the shape of the wheel rim to be formed and which has plastics material injection channels and at least one air inlet channel emerging inside the inflatable sleeve. The inflatable sleeve is inflated through the air inlet channel. Plastics material in injected into the mould between the inflated sleeve and the braided fibre glass sleeve. The mold is baked for setting the structure obtained, and the wheel rim thus is then stripped from the mould.
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