A tyre changing apparatus (1) for demounting and mounting a tyre relative to a respective rim of a vehicle wheel (2) includes: a frame (10); a chuck (11) rotating about an axis of rotation (A); a working tool (12), connected to the frame (10) and movable towards and away from the chuck; an electric motor (13), imparting to the chuck (11) a rotation speed and a working torque; a controller (14), including a power unit (141) supplying voltage and current as a function of a drive signal (101); a processing unit (142) generating the drive signal (101) and programmed to derive a control parameter (102) representing the working torque delivered to the electric motor (13) and to apply a torque-limiting function responsive to the control parameter (102). The processing unit (142) derives an activation parameter and, as a function of the activation parameter, enables and disables the torque-limiting function.

The present invention discloses a tire disassembly and assembly booster arm device installed on an upright of a tire disassembly and assembly machine. The tire disassembly and assembly booster arm device includes a first tire pressing arm and a second tire pressing arm. A first polished shaft and a second polished shaft are symmetrically arranged on two sides of the upright. An air cylinder hanging frame is installed on the top surface of the upright, and an air cylinder is suspended on the air cylinder hanging frame. One end of a piston rod of the air cylinder is connected to a sliding frame connecting frame. A first sliding frame is connected to the first polished shaft in a sliding mode. The front end of the first sliding frame is hinged to the first tire pressing arm, and the rear end of the first sliding frame is connected to one side of the sliding frame connecting frame. A second sliding frame is connected to the second polished shaft in a sliding mode. The front end of the second sliding frame is hinged to the second tire pressing arm, and the rear end of the second sliding frame is hinged to the other side of the sliding frame connecting frame. The tire disassembly and assembly booster arm device may drive the first tire pressing arm and the second tire pressing arm to descend at the same time, so that a tire is pressed to be separated from a hub, which has convenient operations, realizes an assisting mode of one cylinder with two arms, and has the advantages of simple structure, easy for disassembly and assembly, improves work efficiency, and reduces manufacturing and transportation cost.

A method of mounting a tire to a wheel includes rotating a tire about an axis of the tire at a first rotation speed and moving a first tire engaging member into contact with the sidewall of the tire, thereby moving a proximate section of a bead of the tire into a well of the wheel. The method further includes moving a second tire engaging member into contact with the sidewall of the tire and rotating the second tire engaging member about the axis of the tire at a second rotation speed different from the first rotation speed. The method also includes moving the second tire engaging member out of contact with the sidewall of the tire and moving the first tire engaging member out of contact with the sidewall of the tire.

Described is a wheel service machine (1) comprising: a shaft (3) rotating about a relative longitudinal axis (A), and a contact element (4), connected to the shaft (3) for rotating integrally with it and designed to make contact with the rim (2a) supported by the shaft (3); a locking device (5), which can be removably coupled to the shaft (3) and designed to slide relative to the shaft (3) along the longitudinal axis (A) and lock the rim (2a) interposed between the contact element (4) and the locking device (5); a fastening element (6) movably connected to the shaft (3) for moving parallel to the longitudinal axis (A) and designed for coupling with the locking device (5), for pulling it in movement; actuator (7) positioned on the machine and connected to the fastening element (6), wherein the locking device (5) comprises an emitter (8) designed for generating a wireless control signal, received by a wireless signal receiver (9) connected to the actuator (7), activates them for moving the locking device (5).

The present invention regards a group for supporting and tightening a rim of or for a tired wheel, and such group includes a base, a wheel-holder table, an upright or column projecting upward from the base and supporting at the top the wheel-holder table, a shaft or pin mounted in or alongside the upright or column, a sleeve element or ring nut element constrainable or mountable on the shaft or pin and means for the relative movement of the shaft or pin and of the table.

The present invention regards a tightening group for a rim of or for a tired wheel including a base, a main wheel-holder or rim-holder plate or table and at least three jaws or jaw or gripper components.

The present invention relates to a assembly and disassembly device for automobile tire, comprising a device case (41), an upright (42) disposed on the device case (41), a tire dismantling tool connected to a cross beam of the upright (42), and a workbench (44) disposed below the tire dismantling tool (43) and located in the device case (41). The device case (41) is internally provided with a combined compound gearbox (46); the main shaft (31) of the motor penetrates the case; the lower end of the main shaft (31) in the device case (41) is in an engaged connection with a motor gear (36) disposed in the case. The motor gear (36) brings the main shaft gear (35) sleeved on the upper part of the main shaft (31) through a drive gear to drive the workbench (44) connected with the main shaft (31) for it to work. Compared with the prior art, the present invention has the advantages of obvious energy-saving effects, reduction of transmission consumption, long service life, etc.

A tyre changing machine (1), configured to remove a tyre from a respective rim of a vehicle wheel (2), comprises an operating arm (4) which includes: a supporting structure (401); a head (5) movable along a longitudinal axis (402) relative to the supporting structure (401); a removal tool (403) pivoted to the head (5) to rotate relative thereto about an axis of oscillation (405) transverse to the longitudinal axis (402); a driving member (6) movable along an operating axis (402) parallel to the longitudinal axis (402) relative to the supporting structure (401) and to the head (5), and articulated to the removal tool (403) at an operating point (P) which is spaced from the axis of oscillation (405); an actuator (407) comprising a stationary member (407a), connected to the supporting structure (401), and a movable member (407b), adapted to drive the removal tool (403) in rotation and in translation; a coupling member (7) coupled to the supporting structure (401), to the head (5) and to the driving member (6). The movable member (407b) of the actuator (407) is connected to the driving member (6) to directly drive it along the operating axis (402).

A machine (1) configured to remove and mount a tyre from and on a respective rim of a vehicle wheel (2), comprises: an operating arm (4) directed along a longitudinal orientation; a head (5) supported by the operating arm (4); a first tool and a second tool. The first tool is connected to the head (5) and projects in a first direction; the second tool is connected to the head (5) and, in a first operating configuration of the head (5), is disposed in a first position where it projects in a second direction, opposite to the first direction. The second tool is pivoted to the head (5) to rotate about an axis of tilt (406) transverse to the longitudinal orientation (402) to move from the first position to a second position, corresponding to a second operating configuration of the head (5) and tilted upside down relative to the first position, to project in the first direction.

A tire changing tool head, or a mount/demount head for a tire changing machine, includes a head body and a tongue member. The tongue member is pivotally attached to the head body at a pivoting joint. The tongue member includes a tongue shoulder and a tongue blade for engaging a tire bead during tire installation. The tongue member includes a non-metal material, such as a polymer, for preventing wheel rim damage in some embodiments. The head body includes a bead lifter tool protruding therefrom. In some embodiments, the head body and bead lifter tool include a metal material.