The reinforcing element (34) has a cross-section with a flattened overall shape having an aspect ratio greater than or equal to 5 and extending in a main direction (Z1). It comprises a lateral edge (46) made of a polymeric composition comprising a thermoplastic polymer, the lateral edge (46) extending in a general direction substantially parallel to the main direction. The reinforcing element (34) is such that R=(UcU1)/Uc>11%, where Uc is the average value of the microhardness of the reinforcing element (34) measured in its central part, and U1 is the average value of the microhardness of the reinforcing element (34) measured at its lateral edge (36). The lateral edge (46) does not have any ridges.

A tire is provided with a tire frame member that is made from resin and has a pair of bead portions, a pair of side portions that extend from the bead portions towards an outer side in a tire radial direction, and a crown portion that connects an outer side end in the tire radial direction of one side portion to an outer side end in the tire radial direction of another side portion, and with a crossing belt layer that is provided with plural reinforcing cords that are arranged in rows which are inclined relative to a tire rotation axis of the tire frame member and are coated with a resin material. The crossing belt layer is disposed either directly or via a resin layer on an outer side surface in the tire radial direction of the crown portion.

An object is to protect a plurality of belt layers of a tire and suppress exposure of the belt layer. A plurality of the belt layer are arranged outside a carcass in a tire radial direction. A protective layer has an organic fiber cord extending along a tire circumferential direction, and is arranged outside the belt layer in the tire radial direction and in a tire width direction. A circumferential belt layer has a cord extending along the tire circumferential direction and is provided at least at the outermost side in the tire radial direction in the plurality of belt layers. An end of the protective layer is arranged on the inner side in the tire radial direction than the plurality of belt layers, in a region outer in the tire width direction than an outermost end of the plurality of belt layers.

The present invention provides a pneumatic tire, which includes a belt layer laminated and formed on an upper side of a carcass ply inside a tread portion, and a plurality of air vent cords arranged between the carcass ply and the belt with a predetermined interval, wherein at least a part of the air vent cords is formed so as to have electrical conductivity, thus to electrically communicate the carcass ply and the belt layer with each other, such that a static electricity generated in a body of an automobile is discharged through the tread grounded to the road surface via the carcass ply which electrically contacts with a tire wheel, thereby preventing an accident that may occur due to the static electricity in the automobile.

A tire includes a tire frame member made of a resin material; a top tread disposed outside the tire frame member in a tire radial direction; a belt layer disposed between the tire frame member and the top tread, the width dimension BW of the belt layer in a tire axial direction being in a range of from 85 to 105% of the ground width dimension TW of the top tread; and a belt reinforcement layer disposed at end portions of the belt layer in a tire width direction, the belt reinforcement layer having lower stiffness than the belt layer.

Provided is a tire comprising a pair of bead cores 5, a carcass 6, and a plurality of belt layers, wherein the plurality of belt layers comprise a first belt layer 7 with cords extending along the tire circumferential direction CD, and a second belt layer 8 with cords extending at an angle to the tire circumferential direction CD, which is arranged on the outer side in the tire radial direction than the circumferential belt layer, a communication device having a linear antenna is embedded at a tire radial position, that is inner side in the tire radial direction than a tire maximum width position and outer side in the tire radial direction than an outer edge position of the bead core 5 in the tire radial direction, and the linear antenna of the communication device is arranged along the tire circumferential direction.

A tire for an aeroplane and, in particular, to the crown of a tire for an aeroplane, having reduced dimensions and mass of the pieces of tread in the event of accidental tire tread separation, without the use of additional devices external to the tire and therefore without penalizing the payload of the aeroplane, including a tread intended to come into contact with the ground via a tread surface and comprised radially between a bottom surface and the tread surface, the tread comprising at least two circumferential ribs adjacent to at least one circumferential groove, each circumferential rib extending radially between the bottom surface and the tread surface and axially between two edge corners in the tread surface, and a crown reinforcement radially on the inside of the bottom surface, wherein a tread separation layer is arranged radially on the inside of at least one circumferential rib between the bottom surface and the crown reinforcement, axially between the two edge corners of the said circumferential rib, in the tread surface, and circumferentially over at least part of the circumference of the tire, and the radial distance (d.sub.1) between the tread separation layer and the bottom surface is at most equal to 1 mm.

A tire comprising a tire frame that comprises a resin material and has a circular shape, and a metal-resin composite, the metal-resin composite having a structure in which a metal member, an adhesive layer and a resin layer are disposed in this order, and the tire satisfying the following conditions (1) to (3): (1) the adhesive layer comprises an acid-modified polyolefin as a first resin and a resin that is different from the an acid-modified polyolefin as a second resin, and a content of the first resin is 50% by mass or more of the entire resin in the adhesive layer; (2) the adhesive layer has a storage elastic modulus at 10 C. of 850 MPa or less; (3) the adhesive layer has a storage elastic modulus at 140 C. of 1.5 MPa or more.

A tire comprising a tire frame that comprises a resin material and has a circular shape, and a belt portion that comprises a metal-resin composite that is disposed around the tire frame, the metal-resin composite having a structure in which a metal member, an adhesive layer and a resin layer are disposed in this order, and satisfying the following Formula (1) and Formula (2):

23number of metal-resin composites in the belt portion/width of the belt portion (mm)100 Formula (1):

1/{(a/A)+(b/B)}210Formula (2): wherein, in Formula (2), A is a water permeation index of the resin layer, B is a water permeation index of the adhesive layer, a is a thickness of the resin layer (mm) and b is a thickness of the adhesive layer (mm).

A tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements. The tire additionally comprises, in each shoulder, at least one end of a layer of reinforcing elements that are mutually parallel in the layer and are oriented circumferentially, said end being axially outside said at least two working crown layers, the reinforcing elements of the carcass reinforcement having a diameter less than 1 mm and being made up of threads with a diameter strictly greater than 0.16 mm, and said reinforcing elements of the carcass reinforcement being advantageously non-wrapped metal cords that return a flow rate of less than 20 cm.sup.3/min in what is referred to as the permeability test.