Wheelwright machines – Rubber tire mounting and/or demounting apparatus – With carrier
Patent
1982-09-29
1985-03-26
Smith, James G.
Wheelwright machines
Rubber tire mounting and/or demounting apparatus
With carrier
B60C 2500
Patent
active
045067198
ABSTRACT:
A sealing device for facilitating pressuring of tubeless tires and comprising an endless hollow ring member adapted to be positioned at the hiatus between a deflated tire and the associated wheel rim, a plurality of tubular members are disposed within the ring member, and a cable extends through the inner tubular members and has opposite ends extending outwardly from the ring member through a port provided in the sidewall of the ring, clamp members are provided for engaging the exposed outer ends of the cable for adjusting the overall length thereof, and a plurality of roller members are disposed around the cable and disposed within the ring member. When air pressure is directed into the interior of the tire, the sealing device installed at the hiatus between the tire and the wheel substantially precludes the escape of the air at the hiatus, and when the internal pressure of the tire reaches a predetermined level, the ring member is automatically disengaged from the tire and the wheel. The internally disposed structures of the ring member preclude the necessity of manual holding of the ring member in the position during the pressuring operation, and the adjustment of the cable determines the internal pressure of the tire required for the release of the device. In addition, the internal roller members facilitate the release of the device from the engagement with the tire and wheel when the tire has reached the preselected internal pressure level.
REFERENCES:
patent: 3665995 (1972-05-01), Middleton
patent: 3974005 (1976-08-01), Graml
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