Abstract: An automatic device for mounting and removing a tire (6) onto and from the relative wheel rim (5), comprising, for supporting the wheel rim (5) complete with tire (6), rotary means associated with a frame (7) which supports an operating head (16), positionable in level and horizontally translatable, provided with at least one demounting tool (25) which can rotate about an axis perpendicular to the main axis of said operating head (16) to be positioned between a first position for seeking and gripping the bead of the tire (6), in which the tool (25) is orientated towards the center of the wheel rim, and a second position for extracting said bead of the tire (6) from the wheel rim, in which the tool (25) is perpendicular to the axis or is orientated in the opposite direction.

Abstract: An apparatus for the mounting/dismounting of tires on wheels. A bead breaker module with elongated pressure clamps pivotally moved by an actuator such that the elongated pressure clamps extend from the perimeter of a tire to a position proximal the tire side and bead; the actuator urges the elongated pressure clamps together to disengage the bead from the rim. A time mount/dismount module having a base plate affixed to a wheel; a receiver and drive assembly rotatably affixed to the base plate with a receiver receiving a bead rolling tool which is inserted between a tire bead and wheel rim and which, when the receiver and drive assembly is rotated, disengages the bead from the rim or, when installing a tire, engages the bead relative to the rim.

Abstract: An automatic bead release device for tire removal machines, comprising, for supporting the wheel rim complete with tire, rotary means associated with a frame which supports a bead release disc in contact with the tire just external to the flange of the wheel rim, a shaft parallel to its axis of rotation, on which said frame slides to approach and withdraw from the wheel rim, means for moving said frame along said shaft, and means for lightly inserting said disc below the flange of the wheel rim after it has come into contact with it.

Abstract: An apparatus and method for detaching a bead of even a tire, the ratio of which sectional height to its sectional width is small and the rigidity of which side portions is high, from the rim edge of the wheel not by manual labor, but by mechanical operation, in a safe and efficient manner.

Abstract: A tool for mounting and removing tires onto and from respective wheel rims comprises a profiled body mounted on a cylindrical shank provided at the end of a tool holder bar associated with a tire removal machine. The body has two active portions: the blade and the head. The blade and the head extend from two parts comprising coaxial hubs, both of which are mounted on the cylindrical shank of the tool holder bar and removably coupled together such that their mutual orientations can be adjusted. At least one of the hubs is provided with means for torsionally locking the hub to the shank.

Abstract: A machine for mounting and removing special tires consisting of a floor-mounted turret which supports a unit for coupling and turning wheels provided with the special tires and a device for transversely pushing the beads of the tires, the device being provided with means for adjusting its intervention position.

Abstract: A tire changing machine having a support frame, rotatable supporting device for a wheel rim, locking device for securing the wheel rim to the supporting device, a fitting tool which can be secured to an adjustable tool supporting arm carried by the support frame, and driving device for the rotatatable supporting device. The machine also includes a first and a second pressure members which can be located in diametrically opposite positions with respect to a wheel rim carried by the supporting device and are designed to act on either side of a tire on the wheel rim, and drive device for actuating, upon control, each of the first and second pressure members.

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.

Abstract: An automatic device for mounting and removing a tire (6) onto and from the relative wheel rim (5), comprising, for supporting the wheel rim (5) complete with tire (6), rotary means associated with a frame (7) which supports an operating head (16), positionable in level and horizontally translatable, provided with at least one demounting tool (25) which can rotate about an axis perpendicular to the main axis of said operating head (16) to be positioned between a first position for seeking and gripping the bead of the tire (6), in which the tool (25) is orientated towards the center of the wheel rim, and a second position for extracting said bead of the tire (6) from the wheel rim, in which the tool (25) is perpendicular to the axis or is orientated in the opposite direction.

Abstract: An apparatus for pressing a pneumatic tire off a rim of a motor vehicle wheel comprises a pressing blade for removing the tire by pressing it off the rim. The pressing blade is mounted pivotably on a support structure of the machine in a substantially horizontal plane of pivotal movement. The apparatus includes a lift means for lifting the motor vehicle wheel in a standing position with its wheel axis into the horizontal plane of pivotal movement of the pressing blade.

Abstract: A bead breaking device (10) to break a bead (71) from a rim (81) of a wheel (80), comprising an assembly (20, 90) for mounting the device upon a wheel; a first arm (40) pivotally connected to the assembly; means for rotating (50) the first arm; and a breaking tool (60), carried at one end of the first arm and rotatable therewith relative to the assembly. A method for breaking a tire bead from a rim of a wheel, comprises the steps of mounting a wheel and a tire on a bead breaking machine; locating a bead breaking device on the machine, the device providing a bead breaking tool and at least a first arm carrying the tool at one end; forcing the bead breaking tool between the bead of the tire and the rim at one point on the circumference of the rim; and rotating the first arm and bead breaking tool sufficiently to cause the tool to separate the seal between the bead and the rim.

Abstract: A method of mounting a tire on a rim and a device for use in the method. The method includes extracting a bead from a mounting groove of the rim, so as to bring it axially outside a seat of said rim, with a view to subsequently mounting that bead on the seat, the other bead having been mounted on another seat. The method further includes bringing the bead into a local extraction position, radially and axially outside the seat, and of extracting the bead on the whole circumference of the tire, by pivoting a bead gripper on two pins provided radially on both sides of the mounting groove of the rim. The device includes a bead gripper pivotally mounted on one of the pins which is mobile and coupled to a control through a rod which is pivoted on the other pin.

Abstract: An apparatus for mounting tires on a wheel rim and removing tires from a wheel rim which comprises a shaft member mounted for rotation on a base member, a hub member operatively associated with said shaft member for rotation therewith, said hub member containing a cavity therein, means for rigidly securing the wheel rim to a centrally disposed rod, said rod extending as free ends from opposite sides of said wheel rim for selectively mounting the wheel rim within the hub cavity from either of said opposite sides thereof, engaging means mounted for substantially vertical and horizontal movement relative to said shaft members for bringing said engaging means into contact with a tire to be mounted on the wheel rim, and actuator means for moving said engaging means in said substantially vertical and horizontal direction to achieve said contact with said tire.

Abstract: A tire mounting apparatus for mounting a flexible tire on a rim includes a robot having at least one articulated joint and a wrist. The robot is moveable with at least three degrees of freedom along a selectable one of a plurality of programmable predetermined paths. A central processing unit selectively executes any one of the plurality of paths stored in memory. A bead mounting tool is attachable to the wrist of the robot for movement along the selected one of the plurality of programmable predetermined paths of the robot. The tool is orientatable with at least three degrees of freedom independent of the selected one of the plurality of programmable predetermined paths. A workpiece support positions the rim in a predetermined location with respect to the robot and positions the tire in a predetermined orientation with respect to the rim. A signal is generated and sent to the robot corresponding to a size of the rim and tire combination to be assembled.

Abstract: A tire removal machine comprising a rotary platform for supporting the wheel, means for acting on the tire bead and platform operating means, wherein the operating means are a single-phase electric motor with series excitation, connected to a single-phase feed line at 110V a.c. via a voltage rectifier, means being provided for limiting current absorption to a predetermined value.

Abstract: A tire mounting apparatus for mounting a flexible tire on a rim includes a robot having at least one articulated joint and a wrist. The robot is moveable with at least three degrees of freedom along a selectable one of a plurality of programmable predetermined paths. A central processing unit selectively executes any one of the plurality of paths stored in memory. A bead mounting tool is attachable to the wrist of the robot for movement along the selected one of the plurality of programmable predetermined paths of the robot. The tool is orientatable with at least three degrees of freedom independent of the selected one of the plurality of programmable predetermined paths. A workpiece support positions the rim in a predetermined location with respect to the robot and positions the tire in a predetermined orientation with respect to the rim. A signal is generated and sent to the robot corresponding to a size of the rim and tire combination to be assembled.

Abstract: A device for fitting and removing a tire to or from a wheel, that works in conjunction with an instrument having a turntable provided with elements for tightening a rim of the wheel, and with a tool which can be positioned at the height of the top edge of the wheel rim that is mounted on the turntable. The device includes a lever with at least one pressure element that can exert pressure on either an upper or lower bead and/or at least one side of the tire. The lever is fixed in a mobile and revolving manner to a support which is fixed in relation to the instrument. The support is connected to the lever by a single coupling system which allows full movement of the lever between a first position in which the pressure element can exert pressure on one of the upper or lower beads or the sides of the tire surrounding a wheel rim mounted on the turntable of the instrument, and a second position in which the pressure element can exert pressure on the other side and/or the sides of said tire.

Abstract: A helper arm for use in conjunction with a rim-holding tire changer for assisting with the mounting/demounting of a tire. The helper arm comprises an arm having one end attached to a support device and an opposite end operably attached to an adjustable vertical member. The arm is preferably jointed and pivotally attached to the support device. Controls are provided to enable vertical adjustment of the vertical member. The vertical member may comprise a cylinder assembly having a cylinder shaft that may be moved up or down into operable engagement with the tire and wheel rim. A contact block is attached to the lower end of the cylinder. The contact block includes an attachment head configured to enable attachment of the block to the vertical member. Further, the contact block includes a shoulder having a rim-stop surface, a hook member opposite the shoulder, a heel extending downwardly from the body of the block and an instep along the underside of the block.

Abstract: An apparatus and method for inflating a tire mounted on a wheel having first and second rims spaced apart from one another includes a reciprocal inflation head moveable along a fixed path between a first position spaced from the wheel and tire, and a second position in operable engagement with a sidewall of the tire. The inflation head has an annular sealing surface engageable with the sidewall of the tire to provide a sealed passage for introducing compressed fluid between the tire and the wheel for inflating the tire on the wheel. A floating connection allows passive angular orientation of the inflation head with respect to the sidewall of the tire as the head moves between the first and second positions to achieve sufficient contact between the sealing surface of the head and the sidewall of the tire for creating the sealed passage and for maintaining sufficient contact during inflation of the tire on the wheel to maintain the sealed passage.

Abstract: A burst protection device for tire removing machines of the type having a platform on which a wheel can be located and an arm supporting a bead extractor, the burst protection device comprising a wheel locking member for centering and fixing a wheel on the platform and a clearance signal-producing device which is actuatable upon fixing of the wheel on the platform through the locking member; the signal-producing device controls operation of the machine in only an active intervention stage of the wheel locking member.