Disclosed is a transfer wheel, a transfer device and a method for transferring a strip, in particular a run-flat reinforcement strip or a sidewall strip, to a tire building drum, wherein the transfer wheel defines a retaining area that is divided into a first end section for retaining the leading end, a second end section for retaining the trailing end and a main section for supporting the strip body. The transfer wheel has a first mounting member that defines first mounting positions for receiving a first group of retaining segments at the first end section, wherein the first group of retaining segments includes first body retaining segments for retaining the strip body and a first end retaining segment for retaining the leading end, wherein the first mounting member is arranged for interchangeably receiving one first body retaining segment or the first end retaining segment in each first mounting position.

In the tire 2, fillers 10 are layered over clinches 8 in portions outward of a carcass 14 in the axial direction. A carcass ply 50 is turned up around cores 44. Turned-up portions 50a are disposed between the fillers 10 and apexes 46. Each clinch 8 has a maximum thickness Tcx that is measured along a line normal to an inner surface, in the axial direction, of the clinch 8. A ratio of a thickness Tf1 of the filler 10 to a sum of the thickness Tf1 and the thickness Tcx is greater than or equal to 0.1 and not greater than 0.6. A percentage of a complex elastic modulus E*f of the filler 10 relative to a complex elastic modulus E*a of the apex 46 is greater than or equal to 70% and not greater than 125%.

Disclosed is a transfer wheel, a transfer device and a method for transferring a strip, in particular a run-flat reinforcement strip or a sidewall strip, to a tire building drum, wherein the transfer wheel defines a retaining area that is divided into a first end section for retaining the leading end, a second end section for retaining the trailing end and a main section for supporting the strip body. The transfer wheel has a first mounting member that defines first mounting positions for receiving a first group of retaining segments at the first end section, wherein the first group of retaining segments includes first body retaining segments for retaining the strip body and a first end retaining segment for retaining the leading end, wherein the first mounting member is arranged for interchangeably receiving one first body retaining segment or the first end retaining segment in each first mounting position.

A pneumatic tire is provided with a carcass layer and a sidewall rubber disposed on an outer side in a tire width direction of the carcass layer. Additionally, the pneumatic tire is provided with a resin coating applied on a predetermined region of a sidewall portion. Additionally, a minimum value of a wall thickness t of a rubber of the sidewall portion in the region applied with the resin coating is in a range of 0.05 mm≤t≤4.0 mm. Additionally, a thickness of the resin coating is in a range of 20 μm or more and 300 μm or less.

Disclosed is a transfer device and a method for transferring a strip to a tire building drum, wherein the transfer device includes a transfer wheel that is rotatable about a wheel axis, a base for supporting the transfer wheel and a drive for moving the transfer wheel relative to the base in an application direction perpendicular to the wheel axis, wherein the transfer device further includes an overload protection mechanism that enables the transfer wheel to move with respect to the base in a retraction direction opposite to the application direction irrespective of the drive.

A method of preparing a tire including the steps of: providing a cured tire, the tire including a first bead, a second bead, a carcass layer extending from the first bead to the second bead, and an optional innerliner layer disposed interior to the carcass layer; applying a pair of reinforcing members to the carcass layer or to the optional innerliner layer, if present; and applying an air barrier composition to the pair of reinforcing members, and to a portion of the carcass layer or to a portion of the optional innerliner layer to thereby form an air barrier layer.

In the tire 2, fillers 10 are layered over clinches 8 in portions outward of a carcass 14 in the axial direction. A carcass ply 50 is turned up around cores 44. Turned-up portions 50a are disposed between the fillers 10 and apexes 46. Each clinch 8 has a maximum thickness Tcx that is measured along a line normal to an inner surface, in the axial direction, of the clinch 8. A ratio of a thickness Tf1 of the filler 10 to a sum of the thickness Tf1 and the thickness Tcx is greater than or equal to 0.1 and not greater than 0.6. A percentage of a complex elastic modulus E*f of the filler 10 relative to a complex elastic modulus E*a of the apex 46 is greater than or equal to 70% and not greater than 125%.

A run-flat tire has: a pair of bead cores; a carcass that straddles the pair of bead cores, and having end portions that are anchored on the bead cores; side reinforcing rubbers that are provided at tire side portions, and that extend in a tire radial direction along an inner surface of the carcass; a belt layer that is provided at an outer side, in a tire radial direction, of the carcass, and that is formed by covering a cord with resin; and a tread that is provided at an outer side, in a tire radial direction, of the belt layer.

A run-flat tire has: a pair of bead cores, each bead core formed by covering a wire with resin; a carcass that straddles the pair of bead cores, and having end portions that are anchored on the bead cores; side reinforcing rubbers that are provided at tire side portions, and that extend in a tire radial direction along an inner surface of the carcass; and a tread that is provided at an outer side, in a tire radial direction, of the carcass.

The present invention discloses a pneumatic tire.

The pneumatic tire includes a bead portion and a rim flange provided outside the bead portion. The rim flange is made of a rubber resistant to ozone and fatigue and a hardness reinforcing rubber portion is interposed between the rim flange and the bead portion. The pneumatic tire of the present invention avoids a change in the physical properties of the flange rubber, ozone cracks caused by ozone present in the air, and fatigue cracks caused by frequent flexion and extension to achieve improved handling stability and straight ahead ability.