A high-precision intelligent centering device, consisting of a symmetrical synchronous centering mechanism. The invention can meet the needs of wheel centering in use with the ideal effect and high efficiency. Work is safe and reliable, degree of automation is high, and it is especially suitable for mass production on the production line.

The present invention regards a machine for mounting and/or removing tyred wheels for vehicles including a framework, means for driving a wheel in rotation, a first arm extending or supported by the framework and a first mounting and/or removal tool supported by the first arm.

A holding device includes a pair of holding members positioned to be spaced apart from each other in a first direction, and a moving part that moves at least one of the pair of holding members to change a distance between the pair of holding members in the first direction. Each of the holding members is formed with a support face that supports the flange of the wheel, and an engaging portion that is located on an end portion side that is on an opposite side from the other holding member, and is able to engage with the flange of the wheel supported by the support face, from the radially outer side of the wheel. The installation space for a tire mounted on a wheel on the radially outer side of a flange of the wheel is prevented from varying due to the magnitude of the diameter of the wheel.

An apparatus for mounting and demounting a tyre relative to a corresponding wheel rim, wherein the apparatus includes: a wheel-holder unit, configured to receive and lock the wheel at an operating position and to set it in rotation about an axis of rotation; a plurality of tools, configured to interact with the tyre to mount and/or demount the tyre; a hydraulic circuit comprising a pump; a plurality of hydraulic actuators, connected to the hydraulic circuit; the hydraulic circuit is configured to drive the actuators of the plurality of actuators synchronously

In a device (1) for clamping a rim (2) of a vehicle wheel, at least four clamping elements (3) are provided which can be moved with respect to the rim (2) and comprise clamping arms (5) and support elements (7) having support surfaces (6). A rim flange of the rim (2) can be placed on the support surfaces. The clamping arms (5) are rotatably mounted, about their longitudinal axis, in the clamping elements (3), and have clamping fingers (8) at the end that protrude beyond the support surfaces (6), which fingers have clamping surfaces which can be brought into clamping contact with the placeable rim flange.

A jaw (1) for clamping a wheel rim comprises a body (2) extending along a longitudinal orientation (L). The body (2) includes: a connecting portion (22) configured to be connected to the head of the wheel-holder unit; a base portion (21) extending along the longitudinal orientation (L); a first abutment wall (23) extending from the base portion (21) along a clamping orientation (R); a second abutment wall (24) extending from the base portion (21) along the clamping orientation (R) in a spacing-apart direction (VA) and longitudinally spaced from the first abutment wall (23) by a working distance (DL); an abutment surface (251), longitudinally interposed between the first abutment surface (23) and the second abutment surface (24) and including a first portion (251A) and a second portion (251B, 251C), disposed at an advanced position relative to the first portion (251A) in the spacing-apart direction (VA) of the clamping orientation (R) to come into contact with the wheel rim. The second portion is spaced from the first abutment wall (23) along the longitudinal orientation (L) by a first abutment distance (D1), greater than 30% of the working distance (DL).

A tire changer machine, and method of operation, configured with a tire-engaging wheel clamp assembly to secure a wheel assembly consisting of a wheel rim and tire mounted thereon to a drive assembly, and for demounting of the tire from the wheel rim. Upon dismounting of the tire from the wheel rim, a recessed surface and annular flange of the tire-engaging wheel clamp assembly is configured to catch and retain a rim or bead of the demounted tire, restricting movement of the tire upon dismounting from the wheel rim, until retrieved by an operator.

A vertical tire changer with a double-sided tool and an overturning structure is provided. The vertical tire changer includes a pedal, a base, an operating platform, a pulley, a double-sided tool rotating structure, a small pressing wheel structure, a large pressing wheel structure, a lifting seat and a rotating chuck. A wheel hub is clamped above the rotating chuck so that the rotating chuck rotates to a horizontal position. The ends of the double-sided tool rotating structure are provided with a straight hook portion and a bent hook portion respectively. The straight hook portion is configured for tire mounting, and the bent hook portion is configured for tire dismounting. The small pressing wheel structure and the large pressing wheel structure can both be contracted and extended in the using process. The small pressing wheel structure and the large pressing wheel structure play an auxiliary supporting role.

A device for mounting and removing a tire on/from a rim includes a pincers element which is pivoted in a tool body with respect to the main frame and can grip a tire bead; the pincers element performs a preset rotation together with the tool body, moving away from the rim edge by performing a motion over the edge without making contact with the rim at the end of the rotation; the pincers element releases the bead on the outer edge of the rim, in a removal operation, or in the inner seat of the rim, in a mounting operation.

In a device (1) for clamping a rim (2) of a vehicle wheel, at least four clamping elements (3) are provided which can be moved with respect to the rim (2) and comprise clamping arms (5) and support elements (7) having support surfaces (6). A rim flange of the rim (2) can be placed on the support surfaces. The clamping arms (5) are rotatably mounted, about their longitudinal axis, in the clamping elements (3), and have clamping fingers (8) at the end that protrude beyond the support surfaces (6), which fingers have clamping surfaces which can be brought into clamping contact with the placeable rim flange.