METHOD OF MANUFACTURING RUN-FLAT TIRE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Feb 26, 2009
app pub date -
Mar 7, 2006
filing date -
Mar 9, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method of manufacturing a run-flat the capable of manufacturing a run-flat tire with excellent uniformity due to its less occurrence of eccentricity than in conventional methods by simple facility and steps. The method comprises a step for disposing an inner liner rubber (19), reinforcement rubber members (18) reinforcing side wall parts on both sides, and a carcass ply (14) at the prescribed outer peripheral positions of a molding drum, a step for disposing a pair of first beads (1a) and bead fillers (12) and toroidally deforming the inside of the first bead (1a), a step for curling up and stamping the end part (14b) of the carcass ply (14), a step for stamping rubber members (13a) and (13b) forming annular swelled parts on the sides of the bead filler (12) of a toroidal formed product, and a step for forming second beads (1b) by spirally stamping cords (BW) on the formed product while rotating the formed product after that stamping about the axis thereof.
First Claim
Other Claims data not available