Abstract: A bracket for wheel alignment control instruments for vehicle wheels includes a central body having a center, an outer face and an opposing parallel inner face facing a wheel; three gripping arms, the ends of which are distal to the center, have grip members and are simultaneously slidingly mounted onto the central body to slide in radial directions, driven by a first drive system and guided by first guide devices between wheel gripping or releasing positions; spacers holding the bracket, parallel to one side of the wheel, which are simultaneously movable in radial directions relative to the center through adjustable abutment positions, the spacers being slidingly mounted onto the central body to slide independent of the arms, driven by a second drive system independent of the first drive system and guided by the first guide devices.

Abstract: A bracket for wheel alignment control instruments for vehicle wheels includes a central body having a center, an outer face and an opposing parallel inner face facing a wheel; three gripping arms, the ends of which are distal to the center, have grip members and are simultaneously slidingly mounted onto the central body to slide in radial directions, driven by a first drive system and guided by first guide devices between wheel gripping or releasing positions; spacers holding the bracket, parallel to one side of the wheel, which are simultaneously movable in radial directions relative to the center through adjustable abutment positions, the spacers being slidingly mounted onto the central body to slide independent of the arms, driven by a second drive system independent of the first drive system and guided by the first guide devices.

Abstract: A tire demounting device includes a hook member having an elongate body that forms a hook at an end to be disposed lowerly and has a connection point at an opposite end, a pair of parallel plates having the hook member roto-translationally movable therebetween, a connection system that connects the plates to a support element, a drive system that moves the body between an inserted position to fit between a tire and the edge of a rim, and a removal position to remove the tire from the rim, the drive system being connected to the connection point, a connecting rod having one end hinged to the body and an opposite end hinged to the plates, so as to rotate parallel thereto along a circular arc path, the body having a pin, which is supported transverse and perpendicular to the plates, which have a specially shaped guide track for the pin.

Abstract: A debeading device for tire changing machines includes a swing arm having a hinging end hinged to a base of a tire changing machine and swinging in a swing plane between an active debeading position toward the base and an inactive position away from the base; a debeading tool supported at a free end of the arm, opposite to the hinging end; an actuator for reciprocatingly rotating the arm between the active and inactive positions, which includes an externally screw-threaded member supported by the base and rotatably actuated by a motor and screwingly/unscrewingly engaged in a matingly threaded hollow member associated with the arm.

Abstract: A tire changing machine includes a base having a pedal-operated control system located on one side, a rotating platform which defines a surface upon which wheels of vehicles can be fixed, and which is supported by the base, a column rising from the base, an operating arm hinged to an upper area of the column, which can be oriented in a plane transverse to the column and parallel to the plane of the platform, between a work position facing the platform and an opposite rest position facing away from the platform and having a hinging end and an opposite end having a connection for a device holding work tools, a selector unit being interposed between the hinging end and the column, for selecting an orientation of the operating arm in its work position.

Abstract: A tire-lever device for tire-changing machines includes a substantially vertical support arm associated with a tire-changing machine and having upper and lower ends; a pair of substantially vertical and parallel plates integrally extending from the opposite lower end; a connecting rod system, hinged between the pair of plates and including first and second connecting rods; a tire-lever tool with an elongate body defining an upwardly-facing first end and a second end opposite thereto, formed as a hook portion and hinged to the first and second connecting rods and forming an articulated quadrilateral with the latter and said plates; an actuator rotatably actuating the connecting rod system and mounted onto the support arm; a connector element connecting the actuator to the connecting rod system and defining an end hinged to the actuator and an opposite end directly hinged to the first end of the elongate body of the tire-lever tool.

Abstract: A tire changing machine includes a base having a pedal-operated control system located on one side, a rotating platform which defines a surface upon which wheels of vehicles can be fixed, and which is supported by the base, a column rising from the base, an operating arm hinged to an upper area of the column, which can be oriented in a plane transverse to the column and parallel to the plane of the platform, between a work position facing the platform and an opposite rest position facing away from the platform and having a hinging end and an opposite end having a connection for a device holding work tools, a selector unit being interposed between the hinging end and the column, for selecting an orientation of the operating arm in its work position.

Abstract: A debeading device for tire changing machines includes a swing arm having a hinging end hinged to a base of a tire changing machine and swinging in a swing plane between an active debeading position toward the base and an inactive position away from the base; a debeading tool supported at a free end of the arm, opposite to the hinging end; an actuator for reciprocatingly rotating the arm between the active and inactive positions, which includes an externally screw-threaded member supported by the base and rotatably actuated by a motor and screwingly/unscrewingly engaged in a matingly threaded hollow member associated with the arm.

Abstract: A tire demounting machine includes a base; a support unit for supporting wheels on a rest plane, and rotatable about a first axis of rotation, which is supported on the base and is equipped with lock and release devices for the wheels supported thereon; a work-tool supporting column which extends from the base (2) and has a longitudinal axis substantially parallel to the first axis of rotation, a first support element for supporting at least three work-tools on the rest plane being mounted slidably along the longitudinal axis and towards or from the support unit.

Abstract: A tire-lever device for tire-changing machines includes a substantially vertical support arm associated with a tire-changing machine and having upper and lower ends; a pair of substantially vertical and parallel plates integrally extending from the opposite lower end; a connecting rod system, hinged between the pair of plates and including first and second connecting rods; a tire-lever tool with an elongate body defining an upwardly-facing first end and a second end opposite thereto, formed as a hook portion and hinged to the first and second connecting rods and forming an articulated quadrilateral with the latter and said plates; an actuator rotatably actuating the connecting rod system and mounted onto the support arm; a connector element connecting the actuator to the connecting rod system and defining an end hinged to the actuator and an opposite end directly hinged to the first end of the elongate body of the tire-lever tool.

Abstract: A tire demounting machine includes a base; a support unit for supporting wheels on a rest plane, and rotatable about a first axis of rotation, which is supported on the base and is equipped with lock and release devices for the wheels supported thereon; a work-tool supporting column which extends from the base (2) and has a longitudinal axis substantially parallel to the first axis of rotation, a first support element for supporting at least three work-tools on the rest plane being mounted slidably along the longitudinal axis and towards or from the support unit.

Abstract: The actuator unit includes a hollow body defining a sliding chamber within; a piston mounted sliding inside said sliding chamber such to provide an actuation force and operated by a fluid fed from the outside; a body having one transmission end for the transmission of said actuation force prolonged outside said sliding chamber and one hooking end hooked to said piston, amplification means being interposed between said body and said piston to amplify said actuation force so as to obtain an amplified actuation force.

Abstract: An apparatus for tire-changing machines includes a base having a face turned upward, a supporting and locking platform for wheels, mounted rotating on such face around a rotation axis and defining a supporting and locking table, support means of tools extending upward from the base, the support means being movable along the base in a direction of movement perpendicular to the rotation axis, so as to move closer or away from the rotation axis.

Abstract: The actuator unit includes a hollow body defining a sliding chamber within; a piston mounted sliding inside said sliding chamber such to provide an actuation force and operated by a fluid fed from the outside; a body having one transmission end for the transmission of said actuation force prolonged outside said sliding chamber and one hooking end hooked to said piston, amplification means being interposed between said body and said piston to amplify said actuation force so as to obtain an amplified actuation force.

Abstract: An apparatus for tire-changing machines includes a base having a face turned upward, a supporting and locking platform for wheels, mounted rotating on such face around a rotation axis and defining a supporting and locking table, support means of tools extending upward from the base, the support means being movable along the base in a direction of movement perpendicular to the rotation axis, so as to move closer or away from the rotation axis.

Abstract: Apparatus comprising a normally closed valve element that can be mounted on a mobile part and fluid distributor means that can be mounted on a stationary part and is operatively connectable with said valve element.

Abstract: The clamping apparatus comprises a resting plane for resting bodies to be clamped; clamping members, alternatively slidable all together on said plane between a clamping position and a release position; a conducting arrangement of said clamping members said conducting arrangement comprising: a common rotating element rotating alternatively in two opposite directions and engaged with said clamping members; a rotating driving device connected to said common rotating element.

Abstract: A lifting unit for a vehicle wheel designed to cooperate with a tire changing machine and a balancing machine arranged on opposite sides thereof and located at a respective operating level, said lifting unit comprising at least one support frame, guide means vertically extending from said support frame, a cross-member guide slidingly mounted on said guide means and arranged to be moved up and down thereon, driving means carried by said support frame and arranged to move said cross-member guide on said guide means, a bracket means slidingly supported on said cross-member guide and designed to carry a vehicle wheel to be processed, a limiting means slidably carried on a vertical guide means, supported by said support frame, and arranged to engage with said guide means to act upon said driving means, wheel detecting means carried by said support frame and arranged to detect the diameter of a wheel standing on said bracket means, and control means arranged to position said limiting means depending upon the diamet

Abstract: Apparatus comprising a normally closed valve element that can be mounted on a mobile part and fluid distributor means that can be mounted on a stationary part and is operatively connectable with said valve element.

Abstract: A lifting unit for a vehicle wheel designed to cooperate with a tire changing machine and a balancing machine arranged on opposite sides thereof and located at a respective operating level, said lifting unit comprising at least one support frame, guide means vertically extending from said support frame, a cross-member guide slidingly mounted on said guide means and arranged to be moved up and down thereon, driving means carried by said support frame and arranged to move said cross-member guide on said guide means, a bracket means slidingly supported on said cross-member guide and designed to carry a vehicle wheel to be processed, a limiting means slidably carried on a vertical guide means, supported by said support frame, and arranged to engage with said guide means to act upon said driving means, wheel detecting means carried by said support frame and arranged to detect the diameter of a wheel standing on said bracket means, and control means arranged to position said limiting means depending upon the diamet