Wheelwright machines – Rubber tire mounting and/or demounting apparatus – With carrier
Patent
1990-10-20
1991-12-17
Smith, James G.
Wheelwright machines
Rubber tire mounting and/or demounting apparatus
With carrier
B60C 2506
Patent
active
050727648
ABSTRACT:
A method and apparatus for seating tubeless tires, particularly large tubeless truck tires, on a rim. A tank having a volume related to the internal volume of the largest tire to be seated is charged with compressed air at a pressure which is within the range of pressures considered safe for general purpose vehicular applications. A discharge barrel having an internal passage with an area of from 8 to 20 square centimeters is disposed between the tank and the bead of the tire and positioned so that air discharged therefrom strikes the bead from a direction roughly perpendicular to the plane of the bead. An approximately full-flow valve, positioned in flow control relationship to the barrel, is opened abruptly to direct a pneumatic pulse having a fast-rising leading edge against the bead. The bead then seats on the rim as a result of the combined effect of the motion imparted thereto by the impact of the pulse and the air injected into the tire in connection with that impact.
REFERENCES:
patent: 3552469 (1971-01-01), Corless
patent: 3675705 (1972-07-01), Corless
patent: 3683991 (1972-08-01), Ruthland et al.
patent: 3866654 (1975-02-01), Duquesne
The McGee Company, Catalog, "Bead Seating Systems," p. 72.
Jason Edward C.
Smith James G.
Tire Service Equipment Mfg. Co. Inc.
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