A method for testing a punctured tyre's resistance to a loss in pressure includes: creating a plurality of punctures in a wall of the tyre by inserting a plurality of puncturing objects through the wall; running the tyre with the puncturing objects in the wall thereof over a given distance with a regulated inflation pressure; stopping the running of the tyre; and determining, for each puncture, a pressure loss resistance index based on an estimate of a leak rate of the puncture.

From three-dimensional numerical data of surface irregularities of a tire inner surface in a tire of a construction where a sheet member is disposed on the tire circumference, a tire inner surface image is formed for which height direction data of the surface irregularities of the tire inner surface are expressed as pixel gradation values, and the tire circumferential direction and the tire width direction on the tire inner surface correspond to either of the longitudinal direction and the lateral direction of the image. A surface irregularity enhanced image is generated by subjecting this tire inner surface image to spatial frequency processing using a low-pass filter for the tire width direction and a band-pass filter for the tire circumferential direction. A determination is made of whether a recessed region exists which indicates a bonding defect of the end portions of the sheet member.

A working system includes at least one movable apparatus movable and at least one stationary apparatus. The movable apparatus includes a working unit performing a predetermined work. The stationary apparatus includes a control unit performing drive control of the working unit. A control method of the system includes: instructing, when the movable apparatus has reached a working position, the control unit of the stationary apparatus to establish communication with the working unit of the movable apparatus; updating status information indicating a communication establishment status, after the communication instruction; instructing the control unit to transmit an operation signal to the working unit in the working position; instructing the control unit to disconnect the communication, after the signal transmission instruction step; and updating the status information after the disconnection instruction.

A working system includes at least one movable apparatus movable and at least one stationary apparatus. The movable apparatus includes a working unit performing a predetermined work. The stationary apparatus includes a control unit performing drive control of the working unit. A control method of the system includes: instructing, when the movable apparatus has reached a working position, the control unit of the stationary apparatus to establish communication with the working unit of the movable apparatus; updating status information indicating a communication establishment status, after the communication instruction; instructing the control unit to transmit an operation signal to the working unit in the working position; instructing the control unit to disconnect the communication, after the signal transmission instruction step; and updating the status information after the disconnection instruction.

Disclosed is a bead-apex storage system and a method for handling carriers, each carrier supporting a stack of bead-apexes stacked in a stacking direction and alternated with spacers separating the bead-apexes, wherein the bead-apex storage system includes a plurality of storage stations for storing the carriers and a transfer station for transferring one of the plurality of bead-apexes to a tire building machine, wherein the bead-apex storage system further includes a spacer gripper for lifting one or more of the spacers from one of the carriers in one of the plurality of storage stations and for carrying said one or more lifted spacers to the transfer station, wherein the bead-apex storage system includes a spacer gripper base for supporting the spacer gripper, wherein the spacer gripper base is movable from the transfer station to any one of the plurality of storage stations.

A system for preparing an interior surface of a tire for an adhesive includes a turntable configured to remove a layer of material from the tire, and a manipulator operable to move and rotate the tire. The turntable includes a platform rotatable about a first axis. An ablation module is disposed within the platform and includes one or more lasers each configured to emit a laser beam for removing the layer of material from the tire. A plurality of guide rollers extend from the platform and are operable between a retracted position and an extended position to selectively secure the tire to the platform. An exhaust system is disposed adjacent to the one or more lasers.

The invention relates to a method for producing a rubber component (1), in the case of which at least one electronic assembly (2) is embedded between a lower and an upper ply (10, 11) of a rubber material, comprising the steps: a) providing a length portion of the lower ply (10) of the rubber material, which is equipped, on the top side (100), with at least one electronic assembly (2); b) stationarily positioning the length portion of the lower ply (10); c) unrolling a length portion of the upper ply (11) of the rubber material on the top side (100) of the stationary length portion of the lower ply (10) in an unrolling direction (A), and fixedly adhesively connecting the length portions of the plies (10, 11) of the rubber material so as to embed the at least one electronic assembly (2); d) conveying out the length portion of the rubber component (1).

A corresponding device for producing the rubber components (1) is also specified.

A pneumatic tire includes at least one balance patch arranged on a tire inner surface that is a surface on the inner side of the tire, and a functional component having a communication function and arranged on the tire inner surface at a position separated at a predetermined angle θ from the balance patch in a tire circumferential direction.

There are disclosed a plant and a process for building different types of green tyres, the process comprising: a) building a carcass structure of a green tyre; b) building a crown structure of a green tyre; wherein at least one between the building of the carcass structure and the building of the crown structure comprises: c) providing at least one first feeding unit of a first elementary semi-finished product and one second feeding unit of a second elementary semi-finished product, the at least one first and one second elementary semi-finished products being different to one another; d) building at least one portion of a structural component of the tyre being processed starting from at least one of the first and second elementary semi-finished products, in one work station fed by the first and second feeding units of the first and second elementary semi-finished products.

A plant for building tyres for vehicle wheels, comprises a sleeve building area (A) in which devices for obtaining carcass sleeves (12) operate, a crown building area (B) in which devices for obtaining crown structures (7) operate and a shaping station (14) tor shaping each carcass sleeve (12) according to a toroidal configuration. Transfer devices (19) for transferring the carcass sleeves (12) from the sleeve building area (A) to the shaping station (14), by means of a first translator (20) configured for picking up each carcass sleeve (12) from an outlet station (D) of the sleeve building area (A), a second translator (21) configured for releasing each carcass sleeve (12) in the shaping station (14), and a storage device (22) operatively interposed between said first translator (20) and second translator (21)″ has been replaced with --A plant for building tyres for vehicle wheels, comprises a sleeve building area (A) in which devices for obtaining carcass sleeves (12) operate, a crown building area (B) in which devices for obtaining crown structures (7) operate and a shaping station (14) tor shaping each carcass sleeve (12) according to a toroidal configuration. Transfer devices (19) for transferring the carcass sleeves (12) from the sleeve building area (A) to the shaping station (14), by a first translator (20) configured for picking up each carcass sleeve (12) from an outlet station (D) of the sleeve building area (A), a second translator (21) configured for releasing each carcass sleeve (12) in the shaping station (14), and a storage device (22) operatively interposed between the first translator (20) and second translator (21).