Tire bead breaking device

Details Tire bead breaking device Tire bead breaking device

1986-03-04

1987-02-10

Schmidt, Frederick R.

Wheelwright machines

Rubber tire mounting and/or demounting apparatus

For collapsing or shifting tire axially

254 93R, B60C 2506

Patent

active

046416994

ABSTRACT:
A tire bead breaker particularly designed for use with a double-wheel arrangement for high power tractors comprises a pair of levers which are pivoted at one end and taper inwardly toward the other end. An abutment plate is mounted on the other end of one lever and a shank is mounted for sliding movement along the outer surface of the other lever for moving a wedge-shaped tool forwardly from the other end of the other lever. In a retracted position, the levers, tool and abutment plate can be inserted into the space between the double-wheel arrangement so that the plate engages one wheel while the tool is rammed into the space between the bead and rim of the other wheel. A piston and cylinder force the levers apart to cause the tool to jack the bead away from the rim of the wheel.

REFERENCES:
patent: 2577910 (1951-12-01), Oliva
patent: 2579868 (1951-12-01), Schmid
patent: 3819153 (1974-06-01), Hurst et al.
patent: 4030701 (1977-06-01), Pingon
patent: 4273311 (1981-06-01), Rio
patent: 4564057 (1986-01-01), Zrostlik

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