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Carcass Ply patents

      

This page is updated frequently with new Carcass Ply-related patent applications.




 Process and  building tyres patent thumbnailProcess and building tyres
Two auxiliary support members are operatively engaged with a building drum, in axially approached relationship with respective halves of the drum itself, each auxiliary member having a circumferential rest surface extending in the continuation of an outer circumferential surface of the building drum itself. Applied around the outer circumferential surface of the building drum is at least one carcass ply having axially opposite end flaps each lying on the circumferential rest surface of the respective auxiliary support member.
Pirelli Tyre S.p.a.


 Method of manufacturing pneumatic tire, shaping device and pneumatic tire patent thumbnailMethod of manufacturing pneumatic tire, shaping device and pneumatic tire
A method of manufacturing a pneumatic tire including forming a green case by cylindrically winding a tire component member which includes at least one layer of a carcass ply. A green tire is shaped by expanding the green case into a toroidal shape with the supply of a fluid into the green case so that the green case adheres to a tread ring arranged radially outside the green case.
Toyo Tire & Rubber Co., Ltd.


 Method of manufacturing pneumatic tire, shaping device and pneumatic tire patent thumbnailMethod of manufacturing pneumatic tire, shaping device and pneumatic tire
A method of manufacturing a pneumatic tire includes forming a green case by cylindrically winding a tire component member which includes at least one layer of a carcass ply. A green tire is shaped by expanding the green case into a toroidal shape with the supply of a fluid into the green case so that the green case adheres to a tread ring arranged radially outside the green case.
Toyo Tire & Rubber Co., Ltd.


 Method of manufacturing pneumatic tire, shaping device and pneumatic tire patent thumbnailMethod of manufacturing pneumatic tire, shaping device and pneumatic tire
A method of manufacturing a pneumatic tire including forming a green case by cylindrically winding a tire component member which includes at least one layer of a carcass ply. The green tire is shaped by expanding the green case into a toroidal shape with the supply of a fluid into the green case so that the green case adheres to a tread ring arranged radially outside the green case.
Toyo Tire & Rubber Co., Ltd.


 Reinforced cross-ply or radial-tire patent thumbnailReinforced cross-ply or radial-tire
The invention relates to a tire having at least one carcass reinforcement (2) comprising reinforcers, surmounted radially on the outside by a crown reinforcement (3) comprising two axial ends s, itself radially on the inside of a tread (4), said crown reinforcement (3) being made up of at least one layer of reinforcement elements, said tread (4) being connected to two beads (5) by way of two sidewalls (6), said beads (5) being intended to come into contact with a rim flange having a rim flange top c, each bead having at least one circumferential reinforcement element (7) known as a bead wire, said carcass reinforcement (2) comprising an end (8) at each bead (5), the end (8) of the carcass reinforcement (2) being turned up once in an outward radial direction of the tire and about said bead wire, so as to form a turnup, then being folded in the radially outward direction so as to form a fold of the carcass ply (2), said fold forming a radially external end (12a) and three adjacent parts along an axial axis made up of a central part (10), of an axially internal lateral part (11), and of an axially external lateral part (0), the fold being executed in an outward axial direction with respect to the centre of the tire, characterized in that a decoupling elastomer composition (14) having a secant modulus at 10% extension of greater than or equal to 10 mpa and preferably greater than or equal to 30 mpa and less than or equal to 60 mpa is present between the axially internal lateral part and the central part of said turnup, and at the radially external end (12a) of said turnup (12), said elastomer composition being present along a radial length comprised between the radially external end of the turnup and a radially internal point f with respect to the end of said turnup, said point being situated on the sidewall and at a distance from said radially external end by a length greater than 10 mm, and in that the radially external end (12a) of the turnup (12) is disposed between the rim flange top c and a point d, said points c and d being situated at the surface of the sidewall (6) and disposed on either side of a point e situated on the sidewall corresponding to the nominal section width, said point d being disposed at a maximum radial length equal to 85% of the length present between the axial end s of the crown reinforcement (3) and the rim flange top c.. .
Michelin Recherche Et Technique S.a.


 Apparatus for building a carcass structure of a tyre for vehicle wheels patent thumbnailApparatus for building a carcass structure of a tyre for vehicle wheels
A process for manufacturing tyres for vehicle wheels, comprising the step of building on a forming support a carcass structure comprising at least one carcass ply and, at at least one end edge of the carcass ply, at least one annular anchoring structure comprising at least one substantially circumferential annular insert and at least one filling insert associated to said at least one substantially circumferential annular insert. The step of building the carcass structure comprises the steps of positioning the annular anchoring structure on the carcass ply by moving the annular substantially circumferential insert into contact with an end edge of the carcass ply by means of a special positioning member, pulling down the filling insert on the end edge of the carcass ply and turning up a free end portion of the end edge of the carcass ply so as to form a turned up end portion of the carcass ply including said annular anchoring structure.
Pirelli Tyre S.p.a.


 Crown reinforcement for a pneumatic tire patent thumbnailCrown reinforcement for a pneumatic tire
A pneumatic tire includes a carcass reinforced by a carcass ply extending from a first bead to a second bead, and a single reinforcement disposed radially outward of the carcass ply in a crown portion of the pneumatic tire. The single reinforcement is disposed radially outward of the carcass ply in a crown portion of the pneumatic tire.
The Goodyear Tire & Rubber Company


 Continuous crown reinforcement for a pneumatic tire patent thumbnailContinuous crown reinforcement for a pneumatic tire
A pneumatic tire includes a carcass reinforced by a carcass ply extending from a first bead to a second bead, and a single reinforcement disposed radially outward of the carcass ply in a crown portion of the pneumatic tire. The single reinforcement includes a continuous cord forming a generally zig zag pattern across the width of the crown portion.
The Goodyear Tire & Rubber Company


 Bidirectional monobelt construction for a pneumatic tire patent thumbnailBidirectional monobelt construction for a pneumatic tire
A pneumatic tire includes a carcass reinforced by a carcass ply extending from a first bead to a second bead and a single belt ply disposed radially outward of the carcass ply in a crown portion of the pneumatic tire. The single belt ply includes a first group of cords oriented in a first direction relative to a centerline of the pneumatic tire and a second group of cords oriented in a second direction relative to the centerline of the pneumatic tire..
The Goodyear Tire & Rubber Company


 Pneumatic tire patent thumbnailPneumatic tire
Pneumatic tire wherein a rubber layer (a) is disposed as an inner liner at an innermost layer side of the tire, and a rubber layer (b) disposed between the above inner liner and a carcass ply layer and adjacent to the above inner liner comprises a rubber composition containing a natural rubber alone or a natural rubber and a synthetic diene rubber as a rubber component, wherein rubber layer (a) contains a butyl rubber alone or a blend rubber of a diene rubber and a specific amount of a butyl rubber as a rubber component; rubber layer (b) contains a bismaleimide compound as a cross-linking agent, sulfur and a vulcanization accelerator; a blend amount of the sulfur and a blend amount of the vulcanization accelerator are modified to specific ranges; and an elongation at break after subjected to air heat aging at 100° c. For 250 hours is 150% or more..
Bridgestone Corporation


Process and manufacturing tyres for vehicle wheels

A carcass ply is built on a forming drum by application of a plurality of strip-like elements by the steps of: setting a width of these strip-like elements, setting a width of the overlapped part between two adjacent strip-like elements, setting a fitting diameter of the forming drum by calculating a corresponding extension of a radially external laying surface, and calculating a whole number of strip-like elements to be applied. The whole number of drip-like elements is applied by rotating the forming drum around a geometric rotation axis thereof, and applying pairs of strip-like elements by means of a first laying unit and a second laying unit located close to opposite portions of the forming drum relative to the geometric rotation axis.
Pirelli Tyre S.p.a.

Pneumatic radial tire

A pneumatic radial tire includes a bead filler, a carcass ply, a steel protection layer, and an organic fiber protection layer. A reinforcing rubber sandwiches a wind-up end of the steel protection layer.

Reduced weight aircraft tire

A pneumatic tire is disclosed having a carcass and a belt reinforcing structure, an inner liner, the carcass comprising at least two inner plies which are wound around a annular bead member from axially inside of the annular bead member toward axially outside thereof and extends radially outward towards the crown to form respective turnup portions; at least one outer carcass ply that extends radially inward from the crown and axially outward of the annular bead member and being partially wrapped around the bead terminating in an ending; a barrier ply located between the inner liner and the axially innermost inner ply, the barrier ply having a first end which terminates in the shoulder area of the tire and a second end that has a terminal end positioned under the outer carcass ply.. .

Rim/tire interface structure

A pneumatic tire includes a pair of annular beads, at least one carcass ply wrapped around the beads, a tread disposed over the carcass ply in a crown area of the pneumatic tire, and sidewalls disposed radially between the tread and the beads. The pneumatic tire is mounted on a rim and a contact area of the pneumatic tire with the rim has carbon nanotubes for reducing micro-slippage between the beads and the rim during rotation of the pneumatic tire under load..
The Goodyear Tire & Rubber Company

Pneumatic tire

The present invention is directed to a pneumatic tire having a circumferentially extending equatorial plane of the tire, the tire comprising a carcass, a tread radially outward of the carcass, the carcass comprising a carcass reinforcing ply, opposing bead portions, and opposing sidewalls, the carcass reinforcing ply having a main portion extending between the opposing bead portions and a pair of turnup portions, each turnup portion extending from one end of the main portion, the carcass ply further comprising reinforcing cords and a plycoat; each bead portion having a bead core and a bead apex, each apex being in contact with the plycoat; the plycoat comprising a vulcanizable plycoat rubber composition comprising a first methylene acceptor; the apex comprising a vulcanizable apex rubber composition comprising a second methylene acceptor and a methylene donor, wherein the amount of methylene donor is in stoichiometric excess relative to the second methylene acceptor.. .
The Goodyear Tire & Rubber Company

Pneumatic tire

A pneumatic tire comprising: first carcass ply that is comprised of; a tire-inner-face part extending along inner face of the tire to span between the tire bead portions; and turned-up parts extended as turned up from outer faces of the tire bead portions up to inside beyond fringes of a belt layer; and second carcass ply that is substantially omitted at between the tire bead portions and extends as being turned up from outer faces of the tire bead portions up to inside beyond fringes of a belt layer; and cords forming the tire-inner-face part, the turned-up part and the second carcass ply having inclination to radial direction of the tire; and direction of the inclination of the cords being alternated in respect of leftward or rightward, between two adjacent ones of the tire-inner-face part, the turned-up part and the second carcass ply.. .
Toyo Tire & Rubber Co., Ltd.

Pneumatic tyre

(where a1 is 3.65×10−4 mra/mpa, b1 is 0.42 mm, a2 is −8.00×10−5 mm/mpa, and b2 is 0.78 mm), and the tensile strength t of the steel filament is 3000 mpa (exclusive) to 4000 mpa (exclusive) and the number of hits e under a bead core of the steel cord in the carcass ply is 12 hits/25 mm (exclusive) to 38 hits/25 mm (exclusive).. .

Process and manufacturing tyres for vehicle wheels

Building the carcass structure of tyres for vehicle wheels includes associating, each end edge of a carcass ply, at least one respective annular reinforcement structure formed by depositing along a circumferential direction a plurality of reinforcement elements having a first length. Such elements are cut to size from a reinforced continuous band-like element fed to a cutting group arranged at a first operative position adapted to allow a barycentric grip of the reinforcement elements.
Pirelli Tyre S.p.a.

Process and building tyres for vehicle wheels and tyre for vehicle wheels

A process and an apparatus for building tyres and a tyre for vehicle wheels are described. A substantially cylindrical carcass sleeve, having at least one carcass ply, is formed by laying consecutively adjacent strip-like elements one after the other around the circumferential extension of a substantially cylindrical deposition surface.
Pirelli Tyre S.p.a.

Run-flat tire

A run-flat tire ensures run-flat durability with a reduced weight. A tire radial outermost carcass ply of two or more carcass plies has tire widthwise inner ends in a crown portion.
Bridgestone Corporation

Carcass band forming device and carcass band forming method

A first forming drum (21) forms a cylindrical carcass ply (3). A second forming drum (22) forms a cylindrical member (7) by forming a cylindrical inner liner (4) and combining the inner liner (4) with the carcass ply (3).

Pneumatic tire and manufacturing the same

Separation in a chafer edge is suppressed, thereby improving durability of a bead part. In a pneumatic tire including a bead core embedded in a bead part, a carcass ply folded around the bead core and locked, and a chafer having a reinforcing cord embedded therein arranged so as to cover the carcass ply around the bead core, a rubber sheet is prepared using a wet masterbatch containing natural rubber and/or polyisoprene rubber, and carbon black, and the rubber sheet is interposed between a folded part of the carcass ply and an edge of the chafer overlapping the folded part..
Toyo Tire & Rubber Co., Ltd.

Run-flat tire comprising a polyester carcass ply

The run-flat tyre (p1) comprises a carcass reinforcement (32) comprising at least one polyester reinforcing element and a sidewall insert (44) manufactured from a rubber composition based on a crosslinkable rubber composition comprising an elastomer consisting of polybutadiene having a mooney plasticity within a range of values extending from 55 to 85 mooney units and a carbon black having a specific surface area within a range of values extending from 15 m2/g to 25 m2/g and an oil adsorption number of compressed sample within a range of values extending from 65 ml/100 g to 85 ml/100 g.. .
Michelin Recherche Et Technique S.a.

Pneumatic tire

A pneumatic tire includes a carcass ply wound up from an inner side to an outer side around bead cores, chafers wound up from an outer side to an inner side around the bead cores, and an inner liner rubber which is arranged in an inner side of the carcass ply, wherein a squeegee rubber having a higher modulus than the inner liner rubber is provided closer to the inner liner rubber side than the chafers between the carcass ply and the inner liner rubber, and the squeegee rubber is arranged so as to cover inside wound-up ends of the chafers, and is provided with a thick portion which is thicker than the inner liner rubber, and thin portions which are arranged respectively in an inner side and an outer side in the tire diametrical direction of the thick portion and are thinner than the inner liner rubber.. .
Toyo Tire & Rubber Co., Ltd.

Pneumatic tire

Provided is a pneumatic tire which is configured so as to prevent carcass cords from biting into an inner liner, thereby improving the durability performance of the tire. A pneumatic tire (1) is provided with a carcass (6) which comprises, a carcass ply (11) extending from a tread (2) through side walls (3) to the bead cores (5) of bead sections (4), the bead cores (5) each including an inner core (14) and an outer core (15).
Sumitomo Rubber Industries, Ltd.

Pneumatic tire

A pneumatic tire and a method of fabricating a pneumatic tire are disclosed herein. The pneumatic tire includes a tread, sidewalls, and a carcass including at least one carcass ply.
Hankook Tire Co., Ltd.

Pneumatic radial tire for a passenger car having ultra fine steel cords for a carcass ply

Disclosed is a pneumatic radial tire for a passenger car having ultra fine steel cords for a carcass ply in which adhesive force between a carcass ply layer and a side wall or a rim flange rubber adjacent to a turn up portion on an outside and a stiffness of the rim flange rubber are larger than a bending stiffness of the carcass ply layer so as to improve durability of a bead part while reducing poor air inletting generated at a carcass turn up portion.. .
Kumho Tire Co., Inc.

Tire bead

A tire for a motor vehicle having at least one carcass ply comprised of a crown portion and two axially opposite side portions terminating in beads for mounting the tire on a rim. A tread band and a belt structure are interposed between the carcass structure and the bead.
Cooper Tire & Rubber Company

Pneumatic tire for aircraft

A pneumatic tire (10) for an aircraft has: a carcass ply (12) that spans between a pair of bead portions; a belt layer (14) that is provided at a tire radial direction outer side of a crown portion (12a) of the carcass ply (12); a protecting layer (16) that is provided at a tire radial direction outer side of the belt layer (14); a tread (18) that is provided at a tire radial direction outer side of the protecting layer (16), and at which ribs (30, 32, 34) are demarcated and formed by circumferential direction grooves; and filaments (20) that are provided between the protecting layer (16) and the tread (18), or within the tread (18), that extend in a tire axial direction, and that are disposed with an interval therebetween in a tire circumferential direction.. .

Aircraft pneumatic tire

An aircraft pneumatic tire (10) includes: a carcass ply (12) that straddles between a pair of bead portions (24); an inside belt layer (14) that is provided at a tire radial direction outer side of a crown portion of the carcass ply (12); an outside belt layer (16) that is provided at the tire radial direction outer side of the inside belt layer (14) and that is configured by a cord of cord configuration elements that have been twisted together; a belt protection layer (18) that is provided at the tire radial direction outer side of the outside belt layer (16) and that is configured by a cord of cord configuration elements that have been twisted together; and a low elasticity portion that is provided at at least one of the cord of the belt protection layer (18) or the cord of the outside belt layer (16), and that has a lower elasticity than other length direction portions of the cord (32).. .

Pneumatic tire and manufacturing the same

Provided is a pneumatic tire having the structure where a carcass ply is wound around bead cores from the outside in the tire width direction to the inside in the tire width direction, and both end portions of an inner liner extend between beads and the carcass ply. A lightweight and highly rigid tire can be acquired.
Toyo Tire & Rubber Co., Ltd.

Heavy load vehicle tire

A tire includes: a carcass structure including at least one carcass ply, a belt structure, a tread band radially superimposed on the belt structure; two sidewalls; the belt structure including: at least one pair of lateral reinforcing layers incorporating reinforcing elements oriented in a substantially circumferential direction; a first belt layer radially superimposed on the pair of lateral reinforcing layers, provided with reinforcing elements inclined with respect to the equatorial plane of the tire; a second belt layer radially superimposed on the first belt layer, provided with reinforcing elements inclined with respect to the equatorial plane in a direction opposite to those of the first belt layer; an external belt layer applied in a radially external position with respect to the first and the second belt layers. Preferably, the tire is a super single wide base heavy load vehicle tire.
Pirelli Tyre S.p.a.

Pneumatic vehicle tire and making a pneumatic vehicle tire

A pneumatic vehicle tire has a carcass with at least one carcass ply. The surface of the carcass ply has an overlay made of an electrically conductive rubber mixture.
Continental Reifen Deutschland Gmbh

Pneumatic tire

The present invention is directed to a pneumatic tire 1, comprising at least one pair of parallel annular beads 3; at least one carcass ply wrapped 5 around said beads 3; a tread 7; and first and second sidewalls 9 disposed between said tread 7 and one of said at least one pair of beads 3. In accordance with an embodiment of the invention, the tread comprises tread blocks 11 and/or tread ribs 12, wherein the tread blocks 11 and/or tread ribs 12 comprise sipes 13 extending essentially in an axial direction a of the tire 1, the sipes 13 consisting of an upper portion 15 essentially aligned with the radial direction r of the tire and a lower portion 17 inclined in the direction of rotation d of the tire 1..
The Goodyear Tire & Rubber Cmpany

Pneumatic safety tire

A reinforcing cord of a carcass ply is composed of a polyester fiber and/or an aramid fiber, and subjected to an adhesive agent treatment in which an adhesive agent containing at least one of a thermoplastic polymer, a heat reactive aqueous urethane resin, and an epoxide compound is used for a first bath, an rfl-based adhesive agent is used for a second bath, and a principal chain of the thermoplastic polymer substantially fails to include a double bond between carbons having an addition reactivity, is composed of an ethylene addition polymer and/or a urethane-based high molecular weight polymer, each of which is composed mostly of a linear chain structure, and includes a cross-linkable functional group as a pendant group.. .

Pneumatic safety tire

A reinforcing cord of a carcass ply is composed of a polyester fiber and/or an aramid fiber, and coated with an adhesive agent composition in which, on the basis of 100 parts by mass of solid content of a latex, 35 to 100 parts by mass of solid content of a thermosetting resin including a blocked isocyanate is formulated.. .

Tire for heavy loads

To improve durability performance and rolling resistance performance in a well-balanced manner. It is a tire for heavy loads including a carcass ply (6a).
Sumitomo Rubber Industries, Ltd.

Run flat tire and producing same

A run flat tire having a side reinforcing rubber part is disclosed. The side reinforcing rubber part is formed by a rubber composition having a ratio (m50h/m50n) of tensile stress (m50h) in 50% elongation at a measurement temperature of 100° c.
Toyo Tire & Rubber Co., Ltd.

Tire with bi-directional performance

A tire includes first and second sides defining first and second rotation directions. The first rotation direction is in a counterclockwise direction when the tire is viewed from the first side, and the second rotation direction is in a clockwise direction when the tire is viewed from the first side.
Bridgestone Americas Tire Operations, Llc

Tire carcass ply joining apparatus and method

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; wrapping a first 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; wrapping a second gum strip around the second splice edge such that the second gum strip forms a u-shaped structure in section that allows the second gum strip to extend from a first planar side of the second ply over the second splice edge to a second opposite planar side of the second ply; 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 to the first planar side of the second ply..
The Goodyear Tire & Rubber Company

Pneumatic tire

Provided is a pneumatic tire that can reduce electrical resistance. The pneumatic tire has a tread portion (2), a sidewall portion (3), and a bead portion (4).
Sumitomo Rubber Industries, Ltd.

Pneumatic tire

A pneumatic tire having a designated orientation for mounting to a vehicle includes a tread, sidewalls, beads including bead cores, respectively, and a carcass including a carcass ply. Each bead includes a rubber apex, an outer bead and an inner bead, the rubber apex includes an outer apex portion and an inner apex portion, the outer apex portion includes a first outer apex portion positioned inward from the carcass ply in the axial direction and a second outer apex portion positioned outward from the carcass ply in the axial direction, the inner apex portion includes a first inner apex portion positioned inward from the carcass ply in the axial direction and a second inner apex portion positioned outward from the carcass ply in the axial direction, and the second outer apex portion has height which is greater than height of the second inner apex portion in the radial direction..
Sumitomo Rubber Industries Ltd.

Pneumatic tire

A pneumatic tire includes beads, a carcass and a belt. The carcass ply is turned up around the beads from axially inner sides toward axially outer sides respectively such that the carcass ply includes a main portion bridging the beads and turn-up portions positioned on the axially outer sides of the beads and extending in a radially outward direction, respectively, each of the beads includes a core including wires such that the wires extend in a circumferential direction, the core has two or more strands and turns which are three times a number of the strands or more, the wires have a radially outer edge positioned on a radially inner side of a radially outer edge of a flange of a normal rim when the pneumatic tire is mounted on the normal rim, and each of the turn-up portions has an outer-edge part overlapping an edge portion of the belt..
Sumitomo Rubber Industries Ltd.

Pneumatic tire

In order to enable the suppression of the occurrence of poor appearance, a pneumatic tire (1) is provided with a carcass (6) configured from at least one carcass ply (6a). The carcass ply (6a) is formed by arranging, in the tire circumferential direction, rectangular sheet-shaped ply pieces (11) each having a radial direction length (l2) larger than a tire circumferential direction length (l1).
Sumitomo Rubber Industries, Ltd.

Process and manufacturing tyres

A process for building tyres provides for building a carcass sleeve around a forming drum having an application diameter and two lateral half-portions axially moveable relative to each other. The carcass sleeve includes at least one carcass ply coaxially engaged around each of the axially opposite end flaps thereof to an annular anchoring structure defining a fitting diameter smaller than the application diameter.
Pirelli Tyre S.p.a.

Method for manufacturing motorcycle tire

A method for manufacturing a motorcycle tire includes forming a cylindrical raw tire body including a carcass body including a carcass ply and bead cores on the carcass ply, and forming a cylindrical belt ply wound in a cylindrical shape. The forming of the belt ply includes filling the tire body to expand to first expanded phase, winding a sheet-type belt ply by extending the sheet-type belt ply on bell rings to form the cylindrical belt ply with inner surface bonded to the apex of the tire body, filling the tire body to expand the apex of the tire body along with the belt ply to second expanded phase, increasing diameter of an expandable profile deck to expand the apex of the tire body along with the belt ply to third expanded phase, and winding down edges of the belt ply to bond the belt ply to the tire body..
Sumitomo Rubber Industries Ltd.

Pneumatic tire and production method therefor

A pneumatic tire to reduce separation of a carcass ply from inner and outer core pieces (5i, 5o) and improve steering stability. A radially inner end portion of the carcass ply is held between the inner and outer core pieces (5i, 5o) without turning-up around a bead core.
Sumitomo Rubber Industires Ltd.

Tyre designed to be able to run flat, comprising a hybrid carcass ply

A tyre, which is designed to be able to run flat, includes a carcass reinforcement. The carcass reinforcement includes at least one reinforcing element.
Michelin Recherche Et Technique S.a.

Heavy duty pneumatic tire

A heavy duty pneumatic tire includes a pair of beads, a carcass and a pair of bead fillers laminated outward with respect to the beads in the axial direction, respectively. Each bead includes a core and an apex, the carcass includes a carcass ply folded back around the core and having a main portion and a folding-back portion, each bead filler has an outer edge, an inner edge and a fitting portion to fit to a rim, the fitting portion includes a bottom surface to make contact with a seat surface of the rim and an outer-side contact surface to make contact with a flange of the rim, and the outer-side contact surface has inner-side, outer-side and middle portions such that when not mounted to the rim, the middle portion is recessed inward with respect to imaginary straight line l1 passing through outer edges of the inner-side and outer-side portions..
Sumitomo Rubber Industries Ltd.

Manufacturing pneumatic tire and pneumatic tire

[problem ] it is a manufacturing method for a pneumatic tire 1 having a green tire formation process for applying an unvulcanized carcass ply 6a to the outer surface of a rigid core 20. The green tire formation process includes a process for continuously forming a plurality of strip-shaped sheet-like first ply pieces 13 by cutting a long ribbon-shaped ply 12 along a ply-width direction sequentially from the leading end, a ply piece forming process for continuously forming a plurality of strip-shaped sheet-like second ply pieces 14, and a carcass forming process for forming the unvulcanized carcass ply 6a by the use of the first and second ply pieces 13, 14.
Sumitomo Rubber Industries Ltd.

Pneumatic tire

A pneumatic tire includes a tread, sidewalls, clinches, beads, a carcass, and strips. Each bead includes a core, a first apex and a second apex, the carcass includes a carcass ply which is turned up around the core from the axially inner side toward outer side such that the carcass ply is divided into a main portion and a turn-up portion, each strip has radially inner edge positioned between the main and turn-up portions, the second apex is positioned between the turn-up portion and each clinch, each strip has outer edge positioned to correspond to or on inner side of a point of maximum width of the tire in radial direction, the second apex has outer edge positioned on radially inner side of the outer edge of each strip, and the second apex includes crosslinked rubber and has complex elastic modulus in range of from 60 mpa to 70 mpa..
Sumitomo Rubber Industries Ltd.



Carcass Ply topics:
  • Carcass Ply
  • Adsorption
  • Carbon Black
  • Radial Direction
  • Block Copolymer
  • Isobutylene
  • Cross Section
  • Conductive Layer
  • Impregnated
  • Accelerator


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    This listing is a sample listing of patent applications related to Carcass Ply for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Carcass Ply with additional patents listed. Browse our RSS directory or Search for other possible listings.


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