The invention relates to a belt and tread drum (1, 401, 501, 601), an assembly of the belt and tread drum and a pressing device and to a method for manufacturing a belt and tread package (9), wherein the belt and tread drum comprises a first support member (2), wherein the first support member (2) comprises a tread support surface (20) which faces away from the drum axis (x) for supporting the tread layer (92) where said tread layer (92) is wider than the belt layer (91), wherein the first support member (2) is positionable in a raised position outside the circumferential surface (S) in the radial direction, wherein the belt and tread drum (1, 401, 501, 601) further comprises a first retaining element (4, 404) and a second retaining element for retaining the tread layer (92) at the first support member.

An expandable belt and tread drum with magnetic deck fixing includes an assembly defining a portion of an arcuate outer circumferential working surface of a tire building drum. The assembly comprises a deck segment carrier and one or more magnetic members provided to the deck segment carrier and configured to attach a deck segment to the deck segment carrier by magnetic force.

A process is provided for manufacturing a tire assemblage that includes a first woven or knitted fabric including first threadlike elements, a second woven or knitted fabric including second threadlike elements, and a bearing structure including bearing elements connecting the first and second woven or knitted fabric together. The process includes coating each first threadlike element with a layer of a first adhesive composition and coating each second threadlike element with a layer of a second adhesive composition, heat treating each coated first threadlike element and each coated second threadlike element to crosslink the first adhesive composition and the second adhesive composition, and assembling the bearing elements with each heat-treated and coated first and second threadlike element to form part or all of the tire assemblage.

In a winding method of a sheet member for winding a sheet member having an inclined side portion 7a inclined with respect to a longitudinal direction at least on one side in the longitudinal direction around a winding cylinder 50 in more than one turn from a tip end of the inclined side portion 7a as a winding start tip, winding of the sheet member is started in a small-diameter portion 51a of the winding cylinder 50 to which a radial difference is given by providing a step 54 to make a diameter smaller on one side in an axial direction and larger on the other side in the axial direction.

The invention relates to a method and a building drum (1) for manufacturing a package of a belt layer (6) and a tread layer (7) into a substantially cylindrical tire component, wherein the drum is rotatable about a drum centre line (2) and comprises a rigid support surface (3) for the tire component situated at the outward facing circumferential surface of the drum, wherein the drum comprises two support members (4, 5) which are arranged spaced apart in a substantial longitudinal direction of said drum, wherein the support members (4, 5) each comprises a tread support surface (41, 51) which faces away from the drum centre line and which tread support surfaces are radially movable between a retracted position wherein the tread support surface is arranged at or near the rigid support surface, and a raised position wherein the tread support surface is arranged in a radially outward position with respect to the rigid support surface.

In a method of manufacturing a pneumatic tire, a placement unit is moved relative to a forming drum in a drum circumferential direction to repeatedly perform a one-side step of delivering a reinforcing wire in a folded back state in a length from a central portion toward one side in the width direction of the forming drum and compression bonding the reinforcing wire to an innerliner of an outer surface of the forming drum, and after delivering the reinforcing wire in the length toward the one side in the width direction as described above, perform an other-side step of delivering the reinforcing wire in a folded back state in a length from the central portion toward an other side in the width direction of the forming drum and compression bonding the reinforcing wire to an outer surface of the innerliner.

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 method of forming a belt structure for a tire includes providing a drum having a center section. A first drum edge is near a first edge of the center section and a second drum edge is near a second edge of the center section. A first end surface extends from the center section first edge to the drum first edge and a second end surface extends from the center section second edge to the drum second edge, and a radius of each end surface is smaller than the center section radius. A rubber strip reinforced by a plurality of cords includes an outer edge and an inner edge. The strip is wound about the drum, turning from a first winding angle to a second winding angle on an end surface to reduce the tension and length differential between cords at the outer edge and inner edge of the strip.

A forming device forms a green tire including a discontinuous carcass ply composed of a pair of ply pieces. The forming device includes one servicer that sends out a strip-shaped first sheet for forming a plurality of the ply pieces, a drum around which the first sheet from the servicer is wound, a first cutting portion that cuts the first sheet to separate one of the ply pieces, a moving mechanism that relatively moves the servicer and the drum in the axial direction of the drum, and a control unit that controls the moving mechanism.

A method for manufacturing a motorcycle tire comprises: building a raw tire main body, building a breaker, sticking the breaker, and building a band. The building of the breaker comprises: moving two cylindrical support rings to operating positions, swelling the raw tire main body to have its crown portion protruding from the support rings through a gap therebetween, and winding a breaker ply material on the support rings to form a cylindrical breaker ply whose inner surface is adhered to the raw tire main body. The sticking of the breaker comprises: expanding a profiled deck to swell the raw tire main body into a second swollen state, and turning down both edge portions of the breaker while being supported by the profiled deck. The building of the band comprises: spirally winding a tape on the curved breaker ply while being supported by the profiled deck.