Concentric contra-rotating bead deflector mechanism for tire mou

Details Concentric contra-rotating bead deflector mechanism for tire mou Concentric contra-rotating bead deflector mechanism for tire mou

1976-02-17

1977-06-28

Jones, Jr., James L.

Wheelwright machines

Rubber tire mounting and/or demounting apparatus

For collapsing or shifting tire axially

157 124, B60C 2506

Patent

active

040319415

ABSTRACT:
In that type of apparatus for mounting large size off-highway pneumatic tires on drop-center rims, in which two bead deflectors are moved simultaneously in opposite senses along semi-circular paths, the deflector arms are mounted on the upper ends of concentric shafts having gears at their lower ends, the inner shaft projecting below the outer shaft, each being engaged by an inward facing rack member positioned at suitable height. The two rack members are driven together by a linear actuator whose thrust is reacted through bushings mounted on the shafts above and below the gears. Hence the actuator force which turns the arms imposes no bending moment on the vertical sleeve or platform structure.

REFERENCES:
patent: 3489198 (1976-01-01), Malinski
patent: 3612140 (1971-10-01), Malinski
patent: 3847198 (1974-11-01), Brosene, Jr.

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