ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,856, issued on Dec. 23, was assigned to BRIDGESTONE Corp. (Tokyo).
"Mold for forming tire and tire production method" was invented by Yasuyuki Ishihara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The provided is a mold for forming a tire and a tire production method that can reduce the driving force required to drive the segment in the initial stage of releasing a tire from the mold. The mold for forming a tire comprises: a circular tread molding portion divided into a plurality of circumferentially aligned segments; and a tilting mechanism that tilts the segments radially outward when the tread molding portion is opened radially outward, ...