A method and an apparatus for correcting a feeding distance of a strip or cutting, involves feeding the strip over the feeding distance in a feeding direction towards a cutting line that extends at an oblique cutting angle to the feeding direction; detecting a lateral position of a first longitudinal edge of the strip in a lateral direction perpendicular to the feeding direction; wherein, when the detected lateral position is offset over an offset distance in the lateral direction with respect to a reference position for the first longitudinal edge at the measuring line, and adjusting the feeding distance with a correction distance that is related to the offset distance in a ratio that is defined by the cutting angle.

A system (10) for butt-joining two or more rubber strips (B1, B2) selected in accordance with a predetermined rubber mixture recipe in order to feed at least one extruder with a complex strip of rubber material (B.sub.12) made from the butt joined rubber strips is disclosed. The system includes at least one conveyor that transports the rubber strips from an inlet (12) of the system to an outlet (14) of the butt-joining system; a frame (18) that operationally supports the conveyor to allow the continuous transport of the rubber strips and also to allow the simultaneous butt-joining of the rubber strips fed to the system; and a roller system (20) that butt-joins the rubber strips without penetration. The invention also relates to a process for butt-joining rubber strips that is performed by the system.

A method and an apparatus for correcting a feeding distance of a strip or cutting, involves feeding the strip over the feeding distance in a feeding direction towards a cutting line that extends at an oblique cutting angle to the feeding direction; detecting a lateral position of a first longitudinal edge of the strip in a lateral direction perpendicular to the feeding direction; wherein, when the detected lateral position is offset over an offset distance in the lateral direction with respect to a reference position for the first longitudinal edge at the measuring line, and adjusting the feeding distance with a correction distance that is related to the offset distance in a ratio that is defined by the cutting angle.

A pneumatic tire including an innerliner member applied on a tire inner circumferential surface, the innerliner member being constituted from an at least three-layer structure including a film having a main component of a thermoplastic resin or a thermoplastic elastomer containing a blend of a thermoplastic resin and an elastomer, and rubber sheets layered on both sides of the film; and a lap splice portion in which tire circumferential direction end portions of the film are overlapped with the rubber sheets inbetween. The rubber sheet on the tire cavity side of the innerliner member disposed on the tire cavity side in the lap splice portion is formed longer along the tire circumferential length than the film adjacent thereto.

A pneumatic tire including an innerliner member applied on a tire inner circumferential surface, the innerliner member being constituted from an at least three-layer structure including a film having a main component of a thermoplastic resin or a thermoplastic elastomer containing a blend of a thermoplastic resin and an elastomer, and rubber sheets layered on both sides of the film; and a lap splice portion in which tire circumferential direction end portions of the film are overlapped with the rubber sheets inbetween. The rubber sheet on the tire cavity side of the innerliner member disposed on the tire cavity side in the lap splice portion is formed longer along the tire circumferential length than the film adjacent thereto.

Provided is a device and method for butt-splicing strip members for tire components, having a first clamp and a second clamp arranged for clamping a first end of a first strip member and a second end of a second strip member, respectively, wherein at least one of the first clamp and the second clamp is movable along a butt-splice direction into a butt-splicing position opposite to the other of the first clamp and the second clamp for butt-splicing the ends, wherein the first clamp includes a first upper clamp member and a first lower clamp member, wherein the second clamp includes a second upper clamp member and a second lower clamp member, wherein the first lower clamp member projects beyond the first upper clamp member over a first overlap distance and wherein the second upper clamp member projects beyond the second lower clamp member over a second overlap distance.

Provided is a device and method for butt-splicing strip members for tire components, having a first clamp and a second clamp arranged for clamping a first end of a first strip member and a second end of a second strip member, respectively, wherein at least one of the first clamp and the second clamp is movable along a butt-splice direction into a butt-splicing position opposite to the other of the first clamp and the second clamp for butt-splicing the ends, wherein the first clamp includes a first upper clamp member and a first lower clamp member, wherein the second clamp includes a second upper clamp member and a second lower clamp member, wherein the first lower clamp member projects beyond the first upper clamp member over a first overlap distance and wherein the second upper clamp member projects beyond the second lower clamp member over a second overlap distance.

Provided is a pneumatic tire having an innerliner member attached to a tire inner circumferential surface, the innerliner member constituted from at least three layers including a film having, as a main component, a thermoplastic resin or a thermoplastic elastomer composition containing a blend of a thermoplastic resin and an elastomer, and rubber sheets layered on both sides of the film, the tire including a lap splice portion in which tire circumferential direction end portions of the film are overlapped with the rubber sheets interposed therebetween. The rubber sheet on the tire cavity side of the innerliner member disposed on the tire cavity side in the lap splice portion is formed shorter along the tire circumferential length than an adjacent film.

In the method for producing a tire carcass ply for a vehicle, the ply is wound onto a drum and contains reinforcements running in planes that are radial to an axis of the drum, of which: at least one assembly member (51, 52) mounted such that it can move in relation to the drum brings the ends of the ply together and assembles them by travelling over the ply in a direction (X) parallel to the ends; and prior to assembly, a blade independent of the one or of each assembly member extends between the drum and the ends without extending between the drum and the rest of the ply.

In the method for producing a tire carcass ply for a vehicle, the ply is wound onto a drum and contains reinforcements running in planes that are radial to an axis of the drum, of which: at least one assembly member (51, 52) mounted such that it can move in relation to the drum brings the ends of the ply together and assembles them by travelling over the ply in a direction (X) parallel to the ends; and prior to assembly, a blade independent of the one or of each assembly member extends between the drum and the ends without extending between the drum and the rest of the ply.