| 摘要 |
A bead guide (50) is provided with a columnar part (51) having a cylindrical side surface, and a guide plate (52) provided extending from the tip end of the columnar part (51). An expansion bar rotation driving section (41) causes the bead guide (50) to rotate, and selectively switches between a first position at which the guide plate (52) is retracted further inward in the radial direction from the outer circumferential end of a wheel (H) and a second position at which at least a portion of the guide plate (52) projects further outward in the radial direction than the outer circumferential end of the wheel. By switching the bead guide (50) from the first position to the second position, the guide plate (52) can be caused to enter beneath an upper bead (TBU). |
