Patent ID: 7784519

Claim:
A tyre fitting machine having a wheel mounting means ( 1 ) which is mounted rotatably about a vertical axis ( 5 ) and to which a wheel rim ( 6 ) is to be fixed when fitting or removing a tyre, wherein the wheel rim ( 6 ) rests on a support surface ( 2 ) of the wheel mounting means ( 1 ), the support surface extending perpendicularly to the axis ( 5 ), wherein the support surface ( 2 ) is displaceable along the axis ( 5 ) and is fixable in a plurality of positions, wherein the support surface ( 2 ) is fixed to one of two shaft portions ( 3 , 4 ) which are displaceable relative to each other along the axis ( 5 ), and the two shaft portions ( 3 , 4 ) form an inner and an outer shaft portion which are telescopically fitted one into the other and which have axially extending ribs ( 7 , 8 ) engaging into each other for providing a non-rotatable connection about the axis ( 5 ).