| 摘要 |
A tire dismounting method and machine (20) for use in dismounting a tire casing (40) from a wheel rim (22). The machine has a frame adapted to extend diametrically of the rim to span one side thereof adjacent the associated rim fiange (24), and to engage diametrically opposite portions of the rim flange (24) to restrain movement of said machine axially relative to the rim, while the rim and tire are supported freely on the floor (42) or the like. A ram (46) is pivotally supported on the frame adjacent one longitudinal end thereof for orientation of the ram with its axis generally parallel to the rim axis in operation of said ram. The ram has a piston with a presser shoe (140) pivotally carried on its free end for movement in a travel path radially outwardly of and adjacent the rim flanges (24) and generally parallel to the axis of the rim through a working stroke extending axially beyond the remote rim flange (26). The ram is supported for pivotal motion such that the ram axis can move through a range of about 15 DEG from generally parallel to the rim axis to an acute angle intersecting the rim on the machine side of the rim. |
