Rigid core for forming tire and tire manufacturing method using the same
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United States of America Patent
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Apr 17, 2018
Grant Date -
Sep 1, 2016
app pub date -
Sep 16, 2014
filing date -
Oct 10, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
To prevent rubber from becoming membrane-like mold flash between mating faces and being adhered. It is a rigid core for forming a tire which comprises an annular core main body provided in an outer surface thereof with a tire molding surface for forming a raw tire. The core main body is composed of a plurality of core segments which are divided in a circumferential direction, and each of the core segments has both circumferential end surfaces as mating faces, and the mating faces adjacent to each other in the circumferential direction are butted to each other so as to form the core main body. Each of the mating faces is provided with a border recess extending along an outer peripheral edge of the mating face and formed by cutting away a corner between the tire molding surface and the mating face.
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