Method for the manufacture of a cycle or auto-cycle wheel rim

Details Method for the manufacture of a cycle or auto-cycle wheel rim Method for the manufacture of a cycle or auto-cycle wheel rim

1980-06-27

1982-02-09

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing toroidal work

264513, 264516, 264315, 301 63PW, 301 98, B29D 302, B60B 502

Patent

active

043149642

ABSTRACT:
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.

REFERENCES:
patent: 2289990 (1942-07-01), Parker
patent: 3629030 (1971-12-01), Ash
patent: 4030754 (1977-06-01), Merlette

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