Mold section and die ribs for tire curing mold
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United States of America Patent
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-
Mar 6, 2001
Grant Date -
N/A
app pub date -
Mar 15, 1999
filing date -
Mar 15, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A mold for a pneumatic tire includes a plurality of mold sections that cooperate to form an annular mold. Each of the mold sections has a body with an inner surface. The body defines at least one longitudinal groove that opens at the inner surface. The body defines at least one longitudinal groove that opens at the inner surface. The groove has a mouth and a body with the width of the mouth being smaller than at least the largest width of the body. In one embodiment of the invention, the groove has a female dovetail cross section. The grooves in the mold sections cooperate to form a continuous, 360 degree groove about the tire mold. A plurality of die ribs are slidingly disposed in the grooves. Each die rib has a base that corresponds with the cross section of the groove. Thus, the die rib in the above-embodiment has a male dovetail cross section that is configured to slide within the groove. The dovetail configurations form an interference fit between the die ribs in the mold sections while allowing the die ribs to be installed by sliding them longitudinally within the grooves.
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