| 摘要 |
The invention pertains to improvements to devices for fitting and removing tires, whereby a clamping device is provided for the rims, characterized by the fact that the latter mainly consists of the combination of three guides attached to a common support so as to form equal angles with respect to each other, whereby said support is fitted so as to be free to rotate around a vertical shaft, on each guide a sliding element which is provided with at least one clamping element which can cooperate with the wheel rim; in connection with each sliding element a link which connects to a second common support which is fixed upon aforesaid shaft; braking means which are provided between aforesaid first common support and an element which is fixed with respect to the frame of the machine, means which permit the adjustment of the pressure between afore-mentioned braking means and the adjacent parts, and means for driving afore-mentioned shaft. |
