| 摘要 |
PROBLEM TO BE SOLVED: To provide a bead shape improving efficiency in tire rim detaching work by preventing the bead toe section of a pneumatic tire with tube from deforming caused while a vehicle runs. SOLUTION: A bead section can be prevented from deforming by setting the relation among bead base width BW, the total width DW of the bead section and the effective width AW of the bead section to DW>BW>AW. By setting the relation to 0.97>=BW/DW and BW/AW>=1.01, if possible, even for a pneumatic tire with tube for heavy loads used under sever operation conditions, the bead section can be prevented effectively from deforming.
|
