Invention Grant
- Patent Title: Method for producing a lightweight bicycle wheel rim
- Patent Title (中): 轻型自行车轮辋的制造方法
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Application No.: US11525438Application Date: 2006-09-22
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Publication No.: US07555838B2Publication Date: 2009-07-07
- Inventor: William B. Shook
- Applicant: William B. Shook
- Agent David C. Purdue; John C. Purdue
- Main IPC: B21K1/38
- IPC: B21K1/38

Abstract:
A method for producing a bicycle wheel rim is disclosed. The method involves extruding a thin-walled, hollow body having the cross-sectional shape of the rim and an integral external tab. The walls of the hollow body are sufficiently thin that a length of the hollow body without the external tab is subject to buckling when roll formed to produce a rim. The tab is so positioned and sized that the hollow body with the integral external tab is not subject to buckling when roll formed. A portion of the extrusion is then rolled to a circular shape; the circular portion is cut from the extrusion; the free ends are connected, and the external tab is removed.
Public/Granted literature
- US20070067993A1 Lightweight bicycle wheel rim and method for producing it Public/Granted day:2007-03-29
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