| 摘要 |
A bead loosening device (10) can be used to loosen a tire from a rim while the tire/wheel assembly (20) is installed on a horizontal spindle (18) of a tire-testing machine (12). The device (10) comprises a supporting arm (30), having a first end pivotally connected to a lever (34), and a shoe-carrying arm (32), having a first end pivotally connected to the lever (34) and a second end to which a shoe (38) is attached. A handle (40) is connected to the lever (34) in such a manner that movement of the handle (40) results in the shoe (38) moving radially inward towards a sidewall of the tire. The shoe-carrying arm (32) follows a curved path slanted towards the supporting arm (30).
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