| 摘要 |
A tire bead-breaker having a jack stanchion adapted for substantially vertical use, a jack body mounted on the stanchion for substantially vertical movement therealong, a wheel support associated with and movable with the body and extending outwardly substantially horizontally therefrom, the support having a substantially planar bed for supporting a wheel in substantially horizontal posture with a portion of the tire tread juxtaposed the stanchion such that the side wall thereof faces substantially upwardly, a butting device affixed to the stanchion above the support and being adapted to engage a tire side wall adjacent the tire rim to break the tire bead from the rim in response to upward movement of the body and support and a wheel supported thereon.
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