A tire building method, in particular for strip-winding, includes the step of: providing a choice between a production mode for building a tire component and a test mode for obtaining test measurements, wherein the choice is provided prior to executing the test mode;
wherein at least one or more building parameters is set prior to the building of the tire component based on test measurements performed on a test strip during the test mode.

Also disclosed is a tyre building system and a measurement tool.

A test method of accurately evaluating wear resistance performance of a rubber material when used as a tread rubber of a tire, comprises the steps of: preparing a test piece of the rubber material having a ground contact surface extending in a circumferential direction; abrading the ground contact surface by rolling the test piece on a running surface of a wear testing machine at a slip ratio of not more than 3.5%; and evaluating the wear resistance performance of the test piece by comparing the amount of wear of the test piece with a predetermined threshold value.

Method for checking the formation of beads of tyres including: arranging a carcass sleeve with formed beads with the carcass sleeve in rotation, acquiring at least an image of a circumferential portion of external surface including the respective edges of the end flaps turned up; processing the image in order to determine a circumferential trend of the axial distance of each edge from an axial reference plane; and detecting possible defects of the beads as a function of such trend.

A method and device for manufacturing the tire are provided. For each tire obtained by feeding green tires having an identical specification into an identical vulcanizer, using an arrangement mechanism, with circumferential positions of the green tires varied with respect to the vulcanizer and vulcanizing the green tires, a storage unit stores characteristic value data of at least one of a UF or DB value and feed position data identifying the circumferential position of the green tires, a calculation unit calculates, based on the stored data, the circumferential position of the green tires with respect to the vulcanizer at which a characteristic value related to the characteristic value data is brought within a tolerance range, and feeding using the arrangement mechanism, into the vulcanizer, the green tire to be newly vulcanized while adjusting the green tire to the circumferential position with respect to the vulcanizer being calculated.

A tire uniformity testing machine that includes a base, a pair of vertical spaced apart columns supporting an upper cross frame member. The base carries a load wheel carriage movable towards and away from a testing station. The vertical uprights establish a peripheral footprint plane that does not extend beyond a plane that is tangent to an outer rolling surface of the load wheel when it is redirected. The upper frame member includes clearance spaces and cutouts that enable at least a portion of an upper chuck to move into the upper frame member and a super structure mounted to a top of the cross member that mounts at least a portion of an actuator for translating the upper chuck. The configuration establishes a machine height that enables the machine to be loaded into a standard shipping container and reduces the overall footprint of the tire uniformity machine without compromising its ability to precisely sense tire uniformity parameters.

A tire molding apparatus includes: a moving body which moves and stops along a rail; and a position information acquiring device which acquires information of a stop position of the moving body, in which the position information acquiring device includes at least a reflector and a sensor as components, in which one component of the reflector and the sensor is provided facing the moving body in a stopped state, in which the moving body is provided with the other component of the reflector and the sensor, in which the one component is disposed at a position outside a movable range of the moving body, in which a reflection surface of the reflector is inclined with respect to an extension direction of the rail, and in which the information of the stop position of the moving body is acquired on the basis of the distance measured by the sensor.

Apparatus (1) for checking tyres, comprising: a support frame (2); a flange (3); and an acquisition system (4) of three-dimensional images of a surface of a tyre, the acquisition system being mounted on the support frame and comprising: a matrix camera (5), a linear laser source (7), and a reflecting surface (12) which intersects the propagation axis (9) of the linear laser beam and the optical axis (6) of the matrix camera (5), wherein a first angle (50) formed between a first section (14) and a second section (31) of the optical axis (6) mutually symmetrical with respect to a normal to the reflecting surface in the respective point of incidence to the reflecting surface, is obtuse, and wherein a second angle (51) formed between a first section (16) and a second section (32) of the propagation axis (9) mutually symmetrical with respect to a normal to the reflecting surface in the respective point of incidence to the reflecting surface, is obtuse.

A rim size management method for a tire testing machine includes: a registration step of registering a rim size of each of rims mounted on a rim table in association with a corresponding one of mounting positions on the rim table; a measurement step of actually measuring, with use of a rim measurement mechanism, a size at an outer circumferential edge of at least a first rim mounted at a first mounting position among the plurality of mounting positions; a determination step of determining whether or not the size thus measured at the outer circumferential edge of the first rim corresponds to a registered rim size as the rim size thus registered; and an avoidance step of executing avoidance operation of avoiding contact between the rim and the pair of conveyors when the size at the outer circumferential edge is determined as not corresponding to the registered rim size.

Provided is a rim width adjustment mechanism for the tire testing machine, capable of being reduced in the number of components and miniaturized. The rim width adjustment mechanism includes a lower spindle for rotatably supporting the tire about a vertical axis through the lower rim, a plunger disposed in a through hole of the lower spindle to be raisable and lowerable to the lower spindle and having an upper end connectable to the upper spindle, and a rim width adjustment cylinder for adjusting the rim width by changing the protrusion length of the plunger beyond the lower spindle. The lower spindle is coupled to a cylinder side wall of the rim-width adjustment cylinder, thereby allowing a downward load applied to the lower spindle to be supported by the cylinder sidewall.

Disclosed is an assembly and method for processing bead-apexes. The assembly includes a weighing device for measuring the weight of one of the bead-apexes and at least one station for supplying or receiving the bead-apexes to or from the weighing device in a supply direction or a discharge direction, respectively. The assembly further includes a frame for supporting the at least one station, wherein the weighing device has a weighing member for receiving and supporting one of the bead-apexes and a base member connected to and forming a base for the weighing member. The weighing device is arranged for measuring the weight of the one bead-apex on the weighing member, while the weighing member is arranged for keeping the one bead-apex stationary during the weighing, while the frame of the assembly and the base member of the weighing device are supported independently.