Abstract: The present disclosure is directed to a tyre comprising a monitoring device fixed on the inner surface at a crown portion of the tyre, wherein the monitoring device comprises an electronic unit and an electric power supplier electrically connected to the electronic unit, the electronic unit comprising a sensor for detecting at least one of temperature, pressure, acceleration, deformation, a processing unit; a transceiver, wherein the monitoring device comprises a flexible support in a single body, the electronic unit being fixed on the flexible support, wherein the electric power supplier comprises a plurality of electric energy accumulators electrically connected to the electronic unit for supplying the electronic unit, and wherein each accumulator is fixed onto the flexible support.

Abstract: The present disclosure is directed to a tyre with a monitoring device equipped with an electronic unit, an electric power supplier and an electrical connection between the electronic unit and the electric power supplier, wherein the electronic unit comprises a rigid printed circuits board on which a sensor is fixed to detect temperature, pressure and/or acceleration, a processing unit and a transceiver and wherein the electronic unit and the electric power supplier are both fixed on an inner surface of the tyre at the crown.

Abstract: The present invention relates to a tyre (100) for vehicle wheels comprising at least one carcass structure (101), a tread band (109) applied in a position radially external to said carcass structure, and a pair of sidewalls (108) applied laterally on the opposite sides with respect to said carcass structure, where on at least one sidewall of said pair of sidewalls (108), a label (120) is applied comprising a protective layer (121), an adhesive layer (123), and possibly one or more ink layers (122) interposed between said protective layer (121) and said adhesive layer (123), where said adhesive layer (123) adheres the label (120) to the surface of said sidewall, where said protective layer (121) comprises polyester-based and/or polyether-based cross-linked aliphatic polyurethanes exhibiting dynamic elastic modulus values E?, measured at 25° C., static tensile deformation 1%, dynamic deformation +0.1%, and frequency 1 Hz, equal to or higher than about 5 MPa, and a residual deformation measured at 25° C.

Abstract: The process for producing tyres comprises arranging no more than four sets of noise-reducing elements (2), each set being associated with a respective dimension Lx different from the dimension associated with the other sets; feeding in succession a set of tyres for vehicle wheels, having different values C of the inner circumferential extension; for each inner circumferential extension value, determining a respective number nx of noise-reducing elements for each set of noise-reducing elements, with x ranging from 1 to N, as a function of the value of the inner circumferential extension, wherein for at least one value of the inner circumferential extension at least two respective numbers nx differ from 0; for each tyre (1), collecting from each set of noise-reducing elements (2) the respective number nx of noise-reducing elements (2) and applying the collected noise-reducing elements (2) in a circumferential sequence along an inner surface (3) of the tyre (1), with the dimension Lx oriented circumferentially.

Abstract: A tyre monitoring device comprises an electronic unit enclosed in an encapsulation material. The encapsulation material forms a single body with an upper portion and a lower portion. The upper portion encloses and protects the electronic unit and the lower portion has a base surface aimed at fixing said device to the inner surface of the tyre.

Abstract: A process and an apparatus for automatically applying a noise reducing element to a tyre for vehicle wheels. The process includes: a) providing a noise reducing element; b) providing an adhesive material; c) guiding the noise reducing element according to a predetermined direction; d) during the guiding, applying the adhesive material onto a first surface of the noise reducing element; e) manipulating the noise reducing element by interacting with at least one second surface of the noise reducing element different from the first surface on which the adhesive material has been applied; and f) positioning the noise reducing element in a predetermined position on a radially inner surface of the tyre, bringing the first surface into contact with the radially inner surface.

Abstract: The present invention relates to a method and an apparatus for applying noise reducing elements to tyres for vehicle wheels. Noise reducing elements (12), all equal to each other, are fed in succession on a conveyor (20) according to a predetermined path and are oriented on the predetermined path all in the same way. Tyres (2) of different sizes (C, P) are fed in succession on a conveyor (20) up to an application station (34). In the application station (34), the noise reducing elements (12) are picked up from the conveyor (20) and applied to radially inner surfaces of the tyres (2). The application comprises: arranging the noise reducing elements (12) with the larger dimension (L) directed in a circumferential direction or arranging the noise reducing elements (12) with the larger dimension (L) directed in an axial direction as a function of the sizes (C, P) of the tyre (2) in which they are applied.

Abstract: Apparatus for applying noise reducing elements to tyres for vehicle wheels. The apparatus includes a loading station of stacks of noise reducing elements, an extraction station of noise reducing elements from each stack placed downstream of the loading station, and a conveyor placed downstream of the extraction station and extending along a predefined path. The conveyor is configured for supporting and advancing in a row the noise reducing elements extracted from the stacks which are then applied to a radially inner surface of the tyres. The extraction of each of the noise reducing elements contemplates: retaining a first noise reducing element placed at the base of a stack; raising the remaining noise reducing elements of the stack from the first noise reducing element; moving away the first noise reducing element according to a set path; and lowering the remaining noise reducing elements of the stack.

Abstract: Process and apparatus for applying noise reducing elements to tyres for vehicle wheels. The apparatus includes a loading station of stacks of noise reducing elements, an extraction station of noise reducing elements from each stack placed downstream of the loading station, and a conveyor placed downstream of the extraction station and extending along a predefined path. The conveyor is configured for supporting and advancing in a row the noise reducing elements extracted from the stacks which are then applied to a radially inner surface of the tyres. The extraction of each of the noise reducing elements contemplates: retaining a first noise reducing element placed at the base of a stack; raising the remaining noise reducing elements of the stack from the first noise reducing element; moving away the first noise reducing element according to a set path; and lowering the remaining noise reducing elements of the stack.

Abstract: A process and apparatus for applying noise reducer elements to tyres. Each noise reducer element has an anchoring surface coated with an adhesive layer. The anchoring surface is illuminated with a reference radiation. The radiation emitted by the anchoring surface is detected; and a digital image representative of the anchoring surface is determined as a function of the emitted radiation. Each pixel of the digital image is associated with a respective brightness value representative of the amount of adhesive present in an area of the anchoring surface corresponding to such each pixel. One or more noise reducer elements are applied on the radially inner surface of a tyre.

Abstract: Process and an apparatus for applying noise-reducing elements to a tyre for vehicle wheels that has a radially inner surface with a service area and having a circumferential dimension. The process determines the position in circumferential direction of the service area on the radially inner surface of the tyre, determines the position in circumferential direction of a target area on the radially inner surface of the tyre based on the position in circumferential direction of the service area, and applies a noise-reducing element at the target area. The position in circumferential direction of the service area is determined by circumferentially inspecting the radially inner surface of the tyre starting from a reference position, detecting the angular position of the service area with respect to the reference position and determining the position in circumferential direction of the service area based on the angular position and on the circumferential dimension of the radially inner surface of the tyre.

Abstract: A device for securing an electronic unit to a tyre comprises a base formed by a layer of elastomeric material on which—by means of a structural adhesive—a module comprising the electronic unit is glued. The lower surface of the elastomeric material base, opposite to the surface the module is glued to, and which is intended for being glued to the tyre's surface, is instead coated by means of a pressure sensitive adhesive (PSA). It has also an area which is greater than the surface area of the module glued to the base.

Abstract: A self-sealing tire for vehicle wheels includes: a carcass structure, a tread band applied in a radially external position to the carcass structure at least in a crown area of the tire, a liner applied in a radially inner position to the carcass structure, and a layer of sealing material applied in a radially inner position to the carcass structure and which extends axially at least in all the crown area of the tire in which the sealing material includes a partially chemically crosslinked composition including an unsaturated styrene thermoplastic elastomer.

Abstract: A method of selectively controlling the self-sealing ability of a tyre obtained by application of a sealing assembly on a drum and subsequent formation thereon of a precursor of a green tyre inclusive of liner and carcass, followed by shaping, curing and molding. The sealing assembly includes: a self-supporting thermoplastic film of polyamide or polyester and a layer of sealing material possessing viscoelasticity and stickiness features, which is associated with and supported by the self-supporting thermoplastic film. The sealing assembly is easily puncturable by a sharp-pointed element while it maintains such a deformability and stickiness that it helps in the transfer of the sealing material during ejection of the sharp-pointed element and limits the transferred material amount to such an extent that holes bigger than a predetermined value are not sealed.

Abstract: Process and apparatus for applying noise reducing elements to tyres for vehicle wheels. The apparatus includes a loading station of stacks of noise reducing elements, an extraction station of noise reducing elements from each stack placed downstream of the loading station, and a conveyor placed downstream of the extraction station and extending along a predefined path. The conveyor is configured for supporting and advancing in a row the noise reducing elements extracted from the stacks which are then applied to a radially inner surface of the tyres. The extraction of each of the noise reducing elements contemplates: retaining a first noise reducing element placed at the base of a stack; raising the remaining noise reducing elements of the stack from the first noise reducing element; moving away the first noise reducing element according to a set path; and lowering the remaining noise reducing elements of the stack.

Abstract: A method of selectively controlling the self-sealing ability of a tire obtained by application of a sealing assembly on a drum and subsequent formation thereon of a precursor of a green tire inclusive of liner and carcass, followed by shaping, curing and molding. The sealing assembly includes: a self-supporting thermoplastic film of polyamide or polyester and a layer of sealing material possessing viscoelasticity and stickiness features, which is associated with and supported by the self-supporting thermoplastic film. The sealing assembly is easily puncturable by a sharp-pointed element while it maintains such a deformability and stickiness that it helps in the transfer of the sealing material during ejection of the sharp-pointed element and limits the transferred material amount to such an extent that holes bigger than a predetermined value are not sealed.

Abstract: A process and an apparatus for automatically applying a noise reducing element to a tyre for vehicle wheels. The process includes: a) providing a noise reducing element; b) providing an adhesive material; c) guiding the noise reducing element according to a predetermined direction; d) during the guiding, applying the adhesive material onto a first surface of the noise reducing element; e) manipulating the noise reducing element by interacting with at least one second surface of the noise reducing element different from the first surface on which the adhesive material has been applied; and f) positioning the noise reducing element in a predetermined position on a radially inner surface of the tyre, bringing the first surface into contact with the radially inner surface.

Abstract: A method of selectively controlling the self-sealing ability of a tyre obtained by application of a sealing assembly on a drum and subsequent formation thereon of a precursor of a green tyre inclusive of liner and carcass, followed by shaping, curing and molding. The sealing assembly includes: a self-supporting thermoplastic film of polyamide or polyester and a layer of sealing material possessing viscoelasticity and stickiness features, which is associated with and supported by the self-supporting thermoplastic film. The sealing assembly is easily puncturable by a sharp-pointed element while it maintains such a deformability and stickiness that it helps in the transfer of the sealing material during ejection of the sharp-pointed element and limits the transferred material amount to such an extent that holes bigger than a predetermined value are not sealed.

Abstract: A method of selectively controlling the self-sealing ability of a tyre obtained by application of a sealing assembly on a drum and subsequent formation thereon of a precursor of a green tyre inclusive of liner and carcass, followed by shaping, curing and molding. The sealing assembly includes: a self-supporting thermoplastic film of polyamide or polyester and a layer of sealing material possessing viscoelasticity and stickiness features, which is associated with and supported by the self-supporting thermoplastic film. The sealing assembly is easily puncturable by a sharp-pointed element while it maintains such a deformability and stickiness that it helps in the transfer of the sealing material during ejection of the sharp-pointed element and limits the transferred material amount to such an extent that holes bigger than a predetermined value are not sealed.

Abstract: A self-sealing tyre for vehicle wheels includes: a carcass structure, a tread band applied in a radially external position to the carcass structure at least in a crown area of the tyre, a liner applied in a radially inner position to the carcass structure, and a layer of sealing material applied in a radially inner position to the carcass structure and which extends axially at least in all the crown area of the tyre in which the sealing material includes a partially chemically crosslinked composition including an unsaturated styrene thermoplastic elastomer.