Abstract: A bead breaker device (1) having an arm (2) able to slide horizontally along a sliding axis (X—X), in a pipe (3) supported so that it can slide vertically on a post (4) projecting cantilevered from a base; an orientable bead breaker tool (10) associated with an end of said arm (2) and suitable for breaking the bead of a tire of a wheel removably fixed onto rotary support and locking apparatus of the rim; an actuating device (14, 15, 17) suitable for orienting said tool (10) between a first thrusting configuration and a second penetration configuration, said actuating device (14, 15, 17) including a thrusting body (14) and an elastic element (17) cooperating with said tool (10), said thrusting body (14) being able to be actuated between a first extension position against the action of said elastic element (17) and a second release position in which the force exerted by said elastic element (17) prevails.

Abstract: The multipurpose station for mounting and removing conventional and special tires is constituted by a turret-type frame from the top vertex of which a horizontal guiding cross-member cantilevers out and by a carriage for supporting first and second devices for mounting and removing tires from their respective wheel rims, which is able to move back and forth on the cross-member, under the actuation of a corresponding actuator. The frame has, at a substantially median vertical elevation, conventional elements for rotatably supporting and clamping the wheels and has, in a downward region, a pusher which co-operates with the first and second mounting and removing devices and a lifting support for lifting the wheels towards the conventional supporting and clamping elements and for seating the mounted tires.