Machine for installing giant tires on one-piece rims

Details Machine for installing giant tires on one-piece rims Machine for installing giant tires on one-piece rims

1977-05-18

1978-08-29

Smith, Al Lawrence

Wheelwright machines

Rubber tire mounting and/or demounting apparatus

For collapsing or shifting tire axially

B60C 2506

Patent

active

041096983

ABSTRACT:
A machine for installing a giant tire on a one-piece rim includes a force unit, a guide cone having large and small ends, the former of which connects with the rim, and a clamping unit for holding the guide cone with the rim attached to its large end in a firm position against the force unit. The force unit has an upright frame and maneuvering cylinders positioned on the frame so as to be located generally around the small end of the cone when the cone is against the force unit. The small end of the cone is small enough to fit into the center of the tire, while the large end is about the same diameter as the outside diameter of the flanges on the rim so that the large end forms a gentle approach over the rim flange against which it is positioned. A portion of the guide cone behind the large end is cut away to form a relief which opens downwardly. The tire to be installed on the rim is first placed over the small end of the cone and the small end is clamped against the force unit. Then the portion of the tire sidewall located farthest from the relief is forced over the large end of the cone with one of the maneuvering cylinders, while the opposite portion is accommodated in the relief. This permits the portion farthest from the relief to pass over the flange and into the dropped center of the rim. Next the remaining portions of the sidewall are forced over the large end of the cone and the adjacent rim flange with the remaining maneuvering cylinders.

REFERENCES:
patent: 2597268 (1952-05-01), Simpson
patent: 2647564 (1953-08-01), Douglass
patent: 3972363 (1976-08-01), West et al.

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