First stage run flat tire building drum and method of using same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 3, 2002
Grant Date -
N/A
app pub date -
May 12, 2000
filing date -
May 12, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A first stage tire building drum for building a run flat tire has a cylindrical central portion for receiving the strip components thereon for fabricating a first stage body ply carcass and has a pair of bead receiving areas adjacent the central portion for receiving bead rings thereon. The central portion and bead areas preferably are formed by a plurality of moveable arcuate segments. A spacer or sleeve is formed by a plurality of arcuate segments and is mounted on the center of the cylindrical drum portion and forms a pair of adjacent recesses. The spacer has a smooth outer cylindrical surface. The spacer has a height equal to the thickness of run flat tire sidewall inserts and a width equal to the distance between the inside edges of the opposed sidewall inserts. The elastomeric inserts are placed in the recesses adjacent the central spacer, and in combination with smooth outer surface of the spacer, provide a substantially smooth continuous flat surface for receiving the various tire components thereon without interruption.
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Cited Art Landscape
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