Wheelwright machines – Rubber tire mounting and/or demounting apparatus – For split rims
Patent
1984-07-12
1985-10-29
Smith, James G.
Wheelwright machines
Rubber tire mounting and/or demounting apparatus
For split rims
157 21, B60C 2500
Patent
active
045495955
ABSTRACT:
A substantially flat plate is positioned on a rim, which has a large central opening and no lug holes, to enable a tire to be mounted thereon or dismounted therefrom by a tire changer requiring a rim to have lug holes around the central opening to hold the rim. The flat plate has its length selected so that its opposite ends rest on an annular portion of the rim. The opposite ends of the flat plate have substantially the same curve as the annular portion of the rim on which they rest. The flat plate has a central circular opening to receive a threaded shaft of the tire changer supporting the rim. A hollow tube extends downwardly from the bottom surface of the flat plate adjacent the central opening for disposition over a positioning pin of the tire changer on which the rim is supported. When a hold down cone of the tire changer is manually threaded on the threaded shaft of the tire changer extending through the central opening of the flat plate, the outer surface of the cone bears against the upper edge of the central opening in the flat plate to hold it against the rim to retain the rim against the tire changer. The hollow tube cooperates with the positioning pin to prevent rotation of the rim, the tire, and the flat plate when forces are applied by the tire changer to the side walls of the tire to dismount the tire from the rim or to mount the tire on the rim.
REFERENCES:
patent: 4167118 (1979-09-01), Hihara
Leach, Jr. Frank C.
Smith James G.
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