A method for building green tyres includes: feeding an elementary semifinished product with a feeding apparatus; associating an anthropomorphic robotized arm with a forming drum; sending movement commands to the arm to move the forming drum in a working zone, the forming drum being moved while the feeding apparatus is feeding an elementary semifinished product, so that it is laid on the forming drum. Movement commands are sent to the arm, including: determining target coordinates for the arm in order to move the forming drum in the working zone; modifying the target coordinates by a correction function associated with the arm and the working zone, and using the modified coordinates for such movement commands.

Liquid applicators and methods. The liquid applicators include a frame and an applicator head operably coupled to the frame and configured to support a section of an applicator fabric for operable application of a liquid to a substrate. The liquid applicators further include a fabric conveyance system that is operably coupled to the frame and includes a fabric pay-out assembly configured to supply the applicator fabric to the applicator head and a fabric take-up assembly configured to receive the applicator fabric from the applicator head. The liquid applicators further include a liquid delivery system configured to deliver the liquid to the section of the applicator fabric. The methods include delivering the liquid to the section of applicator fabric, engaging the section of applicator fabric with the substrate, and moving the section of the applicator fabric across the substrate to apply the liquid thereto.

The method is related to automatically and successively laying elastomeric elements using a facility for manufacturing tire blanks. The facility includes a drum for manufacturing tire blanks and at least one collaborative robotized arm equipped with at least one effector. A stage of laying an elastomeric element includes a predetermined sequence of step. The sequence comprises the steps of grasping and drawing the elastomeric element towards the drum using said arm. The automatic and successive laying of elastomeric elements includes instructions which can be executed by the processor of a control unit in order to implement. The sequence includes a stage of automatic performance of a step according to said sequence. The sequence also includes a stage of interruption of said sequence. The sequence further includes a stage of manual performance of the interrupted step or the next step according to said sequence.

A process and apparatus for manufacturing tyres for vehicle wheels includes the step of building, on a forming support, a belt structure including at least one reinforcing structure of the so-called zero-degree type. The reinforcing structure is formed by depositing a continuous elongated reinforcing element on a deposition surface arranged in a radially outer position with respect to the forming support. The aforementioned deposition includes the step of exerting, through at least one element made from magnetic material, a magnetic attraction on a portion of the continuous elongated reinforcing element arranged at at least one pressing member and moving said at least one pressing member toward the forming support until the continuous elongated reinforcing element is brought into contact with the deposition surface.

A reinforcement annular structure of a tyre being processed is formed by arranging a forming drum externally carrying a deposition surface; arranging an application member supported in thrust relation toward the deposition surface; longitudinally guiding a continuous elongated element toward a point of application between the deposition surface and a work surface presented by the application member; and winding the continuous elongated element circumferentially around the deposition surface in order to form coils that are axially side-by-side each other. During winding, the work surface of the application member operates in abutment relation against at least one of the cons previously formed by the continuous elongated element.

A continuous elongated element of elastomeric material is produced through an extruder at a linear delivery speed and directly fed onto a moving surface of a conveyor without interposition of other devices. The continuous elongated element is advanced on the moving surface along a predetermined direction and at a linear advancing speed different from the linear delivery speed until a proximal end of the conveyor. Subsequently, the continuous elongated element is applied onto a forming support which rotates relative to the proximal end of the conveyor at a peripheral speed different from the linear delivery speed, so as to deform the continuous elongated element and apply it in the form of wound coils onto the forming support in order to form a component of elastomeric material of a tyre.

In a tire 2, a band 14 has a helically wound structure in which a strip 26 having a cord 28 is wound in a circumferential direction. The band 14 includes a center portion C disposed at a center in an axial direction, and a shoulder portion S disposed outward of the center portion C in the axial direction. A pitch Pc of the strip 26 in the center portion C is not less than 2.0 times a width W of the strip 26 and not greater than 2.5 times the width W. A pitch Ps of the strip 26 in the shoulder portion S is not less than 0.8 times the width W of the strip 26 and not greater than 1.2 times the width W.

A pneumatic tire and a method for manufacturing the same are provided. In a step of laminating belt reinforcing layers on an outer circumferential side of a belt layer constituting a green tire, wherein the belt reinforcing layers cover each of a tire width direction left edge portion and right edge portion of the belt layer and are separated from each other in the tire width direction, each of the belt reinforcing layers is formed by inclining strip members constituting each of the reinforcing layers in a same direction with respect to a tire circumferential direction, and winding the strip members in a spiral-like manner at least one time around in the tire circumferential direction.

A process for building tyres for vehicle wheels includes: forming a tyre in process, the tyre including a belt structure and depositing a tread band in a position radially external to the belt structure by winding a continuous elongated element made of elastomeric material according to axially adjacent or partially overlapped coils. During the deposition of the tread band and on at least one of the coils already wound, a conductive liquid elastomeric compound is applied, the compound continuously extended between a radially outer surface of the tread band and a radially outer surface of the belt structure to generate electrically conductive paths and free zones.

A continuous elongated element of elastomeric material is produced through an extruder at a linear delivery speed and directly fed onto a moving surface of a conveyor without interposition of other devices. The continuous elongated element is advanced on the moving surface along a predetermined direction and at a linear advancing speed different from the linear delivery speed until a proximal end of the conveyor. Subsequently, the continuous elongated element is applied onto a forming support which rotates relative to the proximal end of the conveyor at a peripheral speed different from the linear delivery speed, so as to deform the continuous elongated element and apply it in the form of wound coils onto the forming support in order to form a component of elastomeric material of a tyre.