Method for boring a spoke rim and for providing an insert for the bored rim
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United States of America Patent
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Apr 17, 2001
Grant Date -
N/A
app pub date -
Mar 29, 1999
filing date -
Jul 12, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to the method for manufacturing a rim for a spoke wheel, especially a cycle rim. At least one bridge of the rim is bored with a plurality of through holes with a flow drilling bit operating in the direction of the other bridge, so as to create a backflow chimney at the level of each opening of the upper bridge, whose length is greater than the thickness of the bridge. The rim is equipped with inserts provided to receive the spoke nipples. The inserts are either embedded in the chimney openings, or screwed.
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