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.

A portable tire changing stand that includes a frame, a rear support leg and a horizontal front leg that attaches to the lower end of the frame and is removable. A removable center shaft perpendicular to the frame is attached to the central part of the frame. For accurate centering of the rim, a stepped bushing is arranged on the center shaft. Plastic support surfaces are attached to the frame above and below the center shaft. A tire lever is attached to the socket and a tire bead is pushed off the rim with the plate attached to the lever. The position of the plate can be adjusted by changing the distance between the bracket and the center shaft. A socket is attached to the ratchet mechanism and the lever attached to it gives the mounting head movement around the center shaft.

A tired wheel comprising at least one base structure, at least one support arm connected to said at least one base structure so as to be angularly displaceable with respect thereto, actuation means for actuating the support arm designed to angularly displace the arm with respect to the at least one base structure, and a demounting tool connected to the support arm so as to be angularly displaceable with respect thereto.

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.

Provided is dismounting machine for dismounting a tire from a rim, including a supporting base frame that is provided with a vertical carrying body for a rim, wherein said carrying body is connected to the base frame, is rotatable by a motor relative to the base frame about a rotation axis that extends in a vertical direction, and is provided with fastening means for fastening a rim in a fixed position on an upper side of the carrying body, so that a principal axis of the rim thus fixed extends in a direction that coincides with the central rotation axis of the carrying body, so that rotation of the carrying body leads to rotation of the fixed rim about the principal axis, and a vertical column connected rigidly to the base frame, which is located at a distance from the carrying body, said column being provided with a guide arm and an auxiliary arm, which extend from the column in the direction of the carrying body, and which, movable independently of one another, are connected to the column, so that the guide arm and the auxiliary arm can be placed independently of one another in a working position as separate tools for dismounting a tire from a rim fixed on the carrying body.

A vehicle wheel service system with a control system and air pathway coupling an inflated tire to an air discharge into a low pressure volume for accelerated deflation of the tire, and for reducing tire inflation pressure below atmospheric pressure during a tire demount procedure.