摘要:
A tire-changing machine comprising support means (4) for a wheel, a tool-bearing arm (50) at an end of which a bead-breaking tool (6) is hinged according to a hinge axis (E) which is perpendicular to an axis (A) of the wheel, and first motorised means (32, 33) for causing a relative movement, in a parallel direction to the axis (A) of the wheel, between the support means (4) and the tool-bearing arm (50), such as to press the bead-breaking tool (6) against a flank of a tire on the wheel, characterized in that it comprises second motorised means (64), activatable independently from the first motorised means (32, 33), which second motorised means (64) are destined to rotate the bead-breaking tool (6) about the hinge axis (E) with the tool-bearing arm (50), in order to vary an inclination of the bead-breaking tool (6) with respect to the axis (A) of the wheel which is mounted on the support means (4).
摘要:
The present invention relates to a device for dismounting a tired wheel having a wheel rim (W) and a tire (T) mounted on the wheel rim (W), comprising: a support member (2), a bill or lever-shaped dismounting tool (4) having one end (4a) thereof articulated to the support member (2), and the other work end (4b) thereof substantially hook-shaped, and holding means for holding the tool (4) in an engagement and extraction position, the holding means comprising an elastically loaded pin (7).
摘要:
The present invention is related to a method and an apparatus for assembling a tire (1) onto the rim (2) of a vehicle wheel or for disassembling a tire (1) from the rim (2) of a vehicle wheel. There is provided an electric motor (3) for rotationally driving the rim (2) and the tire (1) during the assembling or disassembling operation, tools (4, 5) for assembling or disassembling the tire (1) onto the rim (2) or from the rim (2), measuring means (6, 15, 16, 18) for measuring the tire temperature and/or forces acting on the tire during the assembling or disassembling operation, and recording means (7) for recording on at least one data carrier the measured values of the tire temperature and/or of the forces acting on the tire during the assembling or disassembling operation.
摘要:
The accessory (1) for tyre-changing machines, particularly for the locking of wheel rims for vehicles, includes at least a supporting structure (2) associable in a removable way with a revolving portion (B) of a gripping device for gripping the hub of the rim on a tyre-changing machine (F), at least two gripping jaws (3) of the rim (C) of a wheel (D) associated with the supporting structure (2) and moving along a reciprocal approach and away direction between a position of maximum opening, wherein the gripping jaws (3) are arranged at a preset maximum distance, and a position of minimum opening, wherein the gripping jaws (3) are arranged at a preset minimum distance, and at least a movement apparatus (4) associated with the supporting structure (2) and with the gripping jaws (3), suitable for moving the gripping jaws (3) between the position of maximum opening and the position of minimum opening.
摘要:
The blocking device of a wheel rim on a tire-mounting machine is provided with a rotating support plate having a central hole, and includes a stem for engaging with the rotating support plate, and a cursor which is slidable on the stem and which includes a conical centring body and a device for activating for moving the cursor along the stem. The device for activating includes a mechanical transmission between a collar and a motor and the coupling between the cursor and the stem is such as to prevent rotation of the cursor about the stem.
摘要:
A tire changer apparatus comprises a rotor operative to support a wheel rim. A toolhead is movable into engagement with the wheel rim during a tire changing operation. A gas distribution network is provided for routing compressed gas to pneumatic mechanisms in the tire changing apparatus. An oil injector has an outlet in fluid communication with the gas distribution network. The oil injector is operative to introduce lubricating oil into the gas distribution network. Preferably, the oil injector may include a plunger which reciprocates to inject the lubricating oil. For example, the oil injector may be operative to introduce the lubricating oil into the gas distribution network when the plunger reciprocates a selected number of times. The plunger may be moved by a foot pedal on the tire changer apparatus.
摘要:
A method for dismounting self-supporting tires (1) from the relative rim (2), said self-supporting tires comprising an outer cover (10) that contains a rigid auxiliary ring (16) provided with two flexible sidewalls (18, 19). Said method comprises the operating steps of: lifting a first bead (14) of the outer cover (10) away from the rim (2) in a usual manner, so as to make a first sidewall (18) of the auxiliary ring (16) accessible; inserting a dismounting tool (5) between the elastic edge of said first sidewall (18) of the auxiliary ring (16) and the edge of the rim (2); moving said dismounting tool (5), so as to grip the elastic edge of said first sidewall (18) and to turn a part thereof towards the outside; pushing said turned part of the first sidewall (18) outwards, making it slide in contact with the dismounting tool (5), until it passes over the edge of the rim (2); rotating the auxiliary ring (16) according to the central axis (A) of the rim (2), so that the entire elastic edge of the first sidewall (18) interacts with the dismounting tool (5), and is thus completely lifted away from the rim (2); lifting both the second sidewall (19) of the auxiliary ring (16) and the second bead (15) of the outer cover (10) away from the rim (2) in the usual manner.
摘要:
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 tire 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. A bead rolling or tire iron tool has ellipitical crosssections proximal its ends and extensions, bearing surfaces at its bottom, a rectangular cross-section intermediate its ends and a slot intermediate its ends.
摘要:
A bead breaker device (1) having an arm (2) able to slide horizontally along a sliding axis (X—X), in a pipe (3) supported so that it can slide vertically on a post (4) projecting cantilevered from a base; an orientable bead breaker tool (10) associated with an end of said arm (2) and suitable for breaking the bead of a tire of a wheel removably fixed onto rotary support and locking apparatus of the rim; an actuating device (14, 15, 17) suitable for orienting said tool (10) between a first thrusting configuration and a second penetration configuration, said actuating device (14, 15, 17) including a thrusting body (14) and an elastic element (17) cooperating with said tool (10), said thrusting body (14) being able to be actuated between a first extension position against the action of said elastic element (17) and a second release position in which the force exerted by said elastic element (17) prevails.
摘要:
The invention provides a machine for automatically fitting tires to rims, comprising a continuously driven endless conveyor (1), a first feed device (3) provided at the entrance of the conveyor for placing rims (A) one after the other flat on the carrier side (4) thereof, a second feed device (5) situated downstream of the first one for placing a tire (B) of corresponding size aslant on each rim, a tire-fitting head (6) situated downstream of the second feed device for fitting the tire to the rims, and means (7) for discharging the tired rims.This machine is characterized in that it comprises adjustment means (16) disposed upstream of the tire-fitting head (6), for automatically and continuously bringing the upper face of rims (A) to a constant predetermined height with respect to the carrier side (4) of the conveyor (1).