TESTING APPARATUS OF BLADDER FOR TIRE VULCANIZATION, TESTING METHOD OF BLADDER FOR TIRE VULCANIZATION, AND BLADDER FOR TIRE VULCANIZATION

摘要

PROBLEM TO BE SOLVED: To provide a testing apparatus of a bladder for tire vulcanization, a testing method of a bladder for tire vulcanization, and a bladder for tire vulcanization, enabling multifaceted evaluation of bladder performance for tire molding by measuring a force at a portion equivalent to a tire inner face where the bladder contacts when inflating.SOLUTION: A testing apparatus of a bladder for tire vulcanization includes: an outer frame 2 duplicating the shape of a tire inner face; a clamp 4 supporting a cylindrical bladder 3 inserted inside the outer frame 2; a pressure loading device 5 loading a vulcanization-equivalent pressure equivalent to a vulcanization pressure onto the bladder 3; and a plurality of sensors 6 measuring a contact force at a contact face between the bladder 3 and the outer frame 2.SELECTED DRAWING: Figure 1