Tire changing apparatus

Details Tire changing apparatus Tire changing apparatus

1990-09-11

1992-02-18

Smith, James G.

Wheelwright machines

Rubber tire mounting and/or demounting apparatus

For collapsing or shifting tire axially

157 124, 157 20, 157 21, B60C 25132

Patent

active

050885391

ABSTRACT:
A tire changer having a vertical wheel hold down shaft rotatably mounted in a base cabinet and extending upward to a wheel mounting end portion above the cabinet. A collar attached to the hold down shaft beneath its mounting end portion and having a frusto-conical section extending upward to a backing flange centered about the hold down shaft. A locking pin which fits into a wheel lug hole extends upward from the flange. An upwardly extending biased centering cone slidably fitted around the hold down shaft. A bead breaker arm pivotally attached to an outside wall of the cabinet to pivot in a horizontal plane. A pneumatic cylinder is provided which is linked to both the hold down shaft and the bead breaker arm to actuate both, thus providing one pneumatic means for two different functions.

REFERENCES:
patent: 3847198 (1974-11-01), Brosene
patent: 4047553 (1977-09-01), Kotica
patent: 4133363 (1979-01-01), Gardner
patent: 4433578 (1984-02-01), Hill
patent: 4538660 (1985-09-01), Franco

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