A manufacturing method includes cutting out a sheet-like belt for one full circle of tire by cutting a master roll diagonally with respect to a longitudinal direction between a master roll table 10 and a belt table 14, moving the belt table 14 carrying the cut-out sheet-like belt to a winding position of the sheet-like belt, winding the sheet-like belt around a winding cylinder 50 at the winding position, and unwinding the sheet-like belt from the winding cylinder 50 in a place facing a molding drum 64 and forming a cylindrical belt by winding the sheet-like belt around the molding drum 64.

Calendering installation for the production of a reinforcing ply (600) for a tire, which has a frame (100), two extruders (200, 300) for feeding elastomer material, a reinforcing-thread feeding device (400), a calender (500) having a first pair of counter-rotating rollers, with a first working roller (52) and a first shaping roller (51), and a second pair of counter-rotating rollers, with a second working roller (53) and a second shaping roller (54), wherein a calendaring nip (59) is formed between the working rolls (32, 53) in order to receive a first calendered rubber ply (57) delivered by the first pair of rollers (51, 52), a second calendered rubber ply (58) delivered by the second pair of rollers (53, 54), and the reinforcing threads (45) in order to supply the calendered reinforcing ply (600), which is conveyed to the outlet of the installation via GUIDE ROLLERS (62, 63). According to the invention, the two extruders (200, 300) are superposed and arranged on either side of a horizontal plane P extending at the level of the guide rollers (62, 63).

Provided are a manufacturing method and a manufacturing device for an extruded rubber member. The manufacturing method for an extruded rubber member includes extruding at least one type of rubber from a die, the method including the steps of inserting at least one thread into a flow channel of the at least one type of rubber, and embedding the at least one thread in a longitudinal direction of the extruded rubber member.

A tire includes: an annular tire frame member; and a belt layer that is provided at an outer periphery of the tire frame member, wherein the belt layer includes a reinforcing cord spirally wound at intervals in a tire width direction, a resin layer that surrounds the reinforcing cord and integrally covers the reinforcing cord across an entire area of the reinforcing cord in the tire width direction, and a bonding layer that is bonded to one surface of the resin layer.

A manufacturing method includes feeding a master roll 8a from a master roll table 10 to a belt table 14, and cutting the master roll 8a between the master roll table 10 and the belt table 14. In the step of feeding the master roll 8a from the master roll table 10 to the belt table 14, the master roll 8a is fed by holding a front part of the master roll 8a by a first hand 30 and a rear part of the master roll 8a by a second hand 40, and the front part of the master roll 8a is continuously held by the first hand 30 from start to end of the feeding.

A method forms a butt joint between ends of first and second plies and splices the first and second plies together. The method includes the steps of: positioning a first splice edge of a first ply at a first location; positioning a second splice edge of a second ply at a second location, the second splice edge being left bare; wrapping a gum strip around the first splice edge such that the first gum strip forms a U-shaped structure in section that allows the first gum strip to extend from a first planar side of the first ply over the first splice edge to a second opposite planar side of the first ply; not wrapping a gum strip around the second splice edge; placing the first splice edge in abutting relationship to the second splice edge; and stitching the first splice edge to the second splice edge such that stitches each extend from the first planar side of the first ply, through the gum strip, to the first planar side of the second ply.

Provided is a pneumatic tire according to the present disclosure that is a pneumatic tire comprising, in a tread portion, an annular resin-coated belt comprising a cord and a coating resin with which the cord is coated, and the resin-coated belt comprises an easy-to-deform part having a thickness in a tire radial direction smaller than that of a surrounding part thereof.

A tire includes a pair of axially spaced apart annular bead cores, a carcass ply extending around both bead cores, a tread for engaging a contact surface and being disposed radially outward of the carcass ply, and a belt structure disposed radially between the carcass ply and the tread. The carcass ply includes a plurality of cords embedded in a polymer matrix. The carcass ply has a first radially upper surface and a second radially lower surface disposed opposite the first surface. The first surface defines first portions and second portions interspaced between each first portion. Each first portion has a thickness greater than each second portion thereby forming throated portions between each cord of the plurality of cords.

A method forms a butt joint between ends of first and second plies and splices the first and second plies together. The method includes the steps of: positioning a first splice edge of a first ply at a first location; positioning a second splice edge of a second ply at a second location, the second splice edge being left bare; wrapping a gum strip around the first splice edge such that the first gum strip forms a U-shaped structure in section that allows the first gum strip to extend from a first planar side of the first ply over the first splice edge to a second opposite planar side of the first ply; not wrapping a gum strip around the second splice edge; placing the first splice edge in abutting relationship to the second splice edge; and stitching the first splice edge to the second splice edge such that stitches each extend from the first planar side of the first ply, through the gum strip, to the first planar side of the second ply.

A manufacturing device includes a belt table situated adjacent to a master roll table; a hand feeding the master roll from the master roll table to the belt table; and a cutting device cutting the master roll between the master roll table and the belt table, wherein the hand includes a first hand which keeps holding a front part of the master roll in a feeding direction of the master roll from start to end of feeding of the master roll and a second hand which holds a rear part trailing the front part in the feeding direction