Tire bead demounting tool

Details Tire bead demounting tool Tire bead demounting tool

1980-06-13

1982-10-19

Smith, James G.

Wheelwright machines

Rubber tire mounting and/or demounting apparatus

For collapsing or shifting tire axially

B60C 2506

Patent

active

043545440

ABSTRACT:
An improved tool for breaking the circumferential bead of a pneumatic tire from the inner surface of the lip of a wheel rim, the tool having a body with a forward downwardly extending rim engaging body tooth, a bead head slidably supported by the body, an arm pivotally supported to the body having an outer end configured to engage the exterior surface of the wheel rim, an arm actuator slidably supported by the body, and apparatus for longitudinally sliding the arm actuator to first pivot the arm to clamp the wheel rim lip and subsequently advancing the bead head to engage the tire and force the bead away from the wheel rim lip. The improvement lies in the method of clamping the wheel rim between the body tooth and the arm with a selected maximum value of force.

REFERENCES:
patent: 2292146 (1942-08-01), Meunier
patent: 2901029 (1959-08-01), Mraz
patent: 3038510 (1962-06-01), Vorkoeper et al.
patent: 3505928 (1970-04-01), Whitehouse
patent: 3771580 (1973-11-01), Branick
patent: 3847197 (1974-11-01), Konen

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