Wheelwright machines – Rubber tire mounting and/or demounting apparatus – For collapsing or shifting tire axially
Patent
1988-10-24
1989-12-05
Meislin, D. S.
Wheelwright machines
Rubber tire mounting and/or demounting apparatus
For collapsing or shifting tire axially
157 16, 157 117, B60C 2507
Patent
active
048846112
ABSTRACT:
A machine for facilitating the removal and replacement of tire casings from and on the rims of vehicle wheels. The machine incorporates a first hydraulically actuated tool for breaking the bead of the tire casing to be removed free from the rim. Subsequently, the wheel is placed upon a motor driven turntable and clamped in place relative thereto by a second hydraulically actuated mechanism. Once the wheel and tire are clamped in place, a tool support head is brought into play for supporting a tire iron, the end of which is introduced between the rim and the tire's bead. Now, when a hydraulic motor is actuated, the turntable with the wheel and tire clamp thereto is rotated causing the tire bead on one side of the tire to be lifted free of the rim. The process is repeated for the tire bead surrounding the opposite side wall, at which point the old tire has been totally removed from the rim. When reinstalling a new tire, a special plow-like tool fastened to the end of the tool support head is brought into engagement with the bead of the side wall of the new tire and the wheel rim such that when the hydraulic motor is again energized to rotate the turntable, the tire bead is forced over the rim. The process is repeated from the remaining side wall.
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Haugen Orrin M.
Meislin D. S.
Niebuhr Frederick W.
Nikolai Thomas J.
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