Druckluftbetätigte Reifendemontiervorrichtung

摘要

The tyre removal machine comprises a frame (1) which contains a rotatable vertical shaft (6) carrying a self-centering unit (2), and is provided with a rear column (3) for supporting a tyre mounting/removal tool (10), and a rotatable arm (13) for supporting a bead release tool (12), and further comprises at least one flexible element (35) which at one end is connected to the rod (112) of a double-acting pneumatic cylinder-piston unit (11), its other end forking into two branches (130, 131) which wind in opposing directions about two coaxial pulleys (30, 31) which are idly mounted on said shaft (6) and with which there are associated respective coupling devices for making them selectively rigid with this latter, and means (34) to cause them to rotate in order to rewind said branches (130, 131).