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Title:
MANUFACTURE OF RETREADED HEAVY-LOADING PNEUMATIC TIRE AND RETREADED TIRE
Document Type and Number:
Japanese Patent JP3831024
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To improve fast durability by reducing heating value of a central tread rubber of a tread surface.
SOLUTION: A retreading mold and a new product mold are related. An at least circular arc of a central area of a tread surface of a circular arc for forming the tread surface of a tread portion present in a section of a flat surface including central axes of both the molds is formed in a radius having a center of curvature at an inside of a tire. A radius of curvature of the arc of the central area of the tread surface of the retreading mold has a larger radius of curvature than that of the new product mold. The tire to be retreaded is vulcanization molded by using the retreading mold having lower height (h) from a coaxial line of the mold to an inner surface of the tread forming mold to a tire equator surface position than the height H of the new product mold.


Inventors:
Kenji Kaneko
Application Number:
JP26052796A
Publication Date:
October 11, 2006
Filing Date:
October 01, 1996
Export Citation:
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Assignee:
Bridgestone Corporation
International Classes:
B29D30/54; B60C3/04; B29C35/02; B29C73/04; B29K21/00; B29K105/24; B29L30/00; (IPC1-7): B29D30/54; B29C35/02; B29C73/04; B60C3/04; //B29K21:00; B29K105:24; B29L30:00
Domestic Patent References:
JP51047704A
Attorney, Agent or Firm:
Kosaku Sugimura
Norita Tomita
Umemoto Masao