Wheelwright machines – Rubber tire mounting and/or demounting apparatus – For collapsing or shifting tire axially
Patent
1977-05-09
1978-09-19
Smith, Al Lawrence
Wheelwright machines
Rubber tire mounting and/or demounting apparatus
For collapsing or shifting tire axially
B60C 2512
Patent
active
041146727
ABSTRACT:
An improved tire changing apparatus for changing so-called "difficult tires" and/or changing tires at a more rapid rate and/or use in facilities having low pressure or widely fluctuating air pressure sources. The apparatus includes a base having an upwardly extending frame mounted thereon, a tire receiving table mounted on the frame, an elongated rocker arm pivoted at a point intermediate its ends to the frame, upper and lower bead loosening assemblies associated with respective ends of the arm, a rotatable post mounted on the table top, a linkage interconnecting the arm and the post for rotating the post in response to pivotal movement of the arm, a first cylinder connected between the arm and the base for pivoting the arm in one direction and a booster cylinder connected between the arm and the base for pivoting the arm in the one direction in concert with the first cylinder. Also disclosed is a retraction mechanism for an air chuck.
REFERENCES:
patent: 2818108 (1957-12-01), Wells
patent: 3255800 (1966-06-01), Strang et al.
patent: 3827475 (1974-08-01), Brosene, Jr.
patent: 3937264 (1976-02-01), Mikovits et al.
Holladay Jimmie L.
Scott Ray A.
Smith Al Lawrence
Smith James G.
The Coats Company, Inc.
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