| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire bead detachment device in which an insertion part of a bead detachment tool can be inserted between an upper bead and an upper rim easily and smoothly with a simple structure.SOLUTION: A device for detaching an upper bead T1 of a tire T from an upper rim W1 of a wheel W comprises a base stage equipped with a turntable 10 which holds the wheel W as detachable and is rotation-driven around a vertical rotation axis L1, a drive arm 3 which is installed at the base stage as movable in the forward direction B1 and backward direction B2 and as movable in the upward direction C1 and the downward direction C2 above the turntable 10, a bead detachment tool 4 which is installed at one end part of the drive arm 3 as angle-variable around a horizontal axis line L2 of the drive arm 3 and includes an insertion part 4a, a pressure arm which is installed at the base stage as movable in the horizontal direction with following rotation of the tire T above the turntable 10, and a tire pressing tool 6 which includes a tire pressing surface 21 and an insertion guiding surface 22. |
