Class / Patent application number | Description | Number of patent applications / Date published |
152541000 | Apex or filler strip | 82 |
20080295946 | Pneumatic Vehicle Tire with Reinforced Tread - A vehicle tire contains a tread part, a bead region which is radially formed inside the tread part and having a bead core, a bead filler formed radially outside the bead core, and a bead reinforcing layer extending over a periphery of the vehicle tire and containing at least one resistance carrier spirally wound radially outwardly from the inside towards the periphery. A further bead reinforcing strip is formed radially inside the bead core, the further bead reinforcing strip extending axially over the entire axial length of the bead core and being radially outwardly folded back towards the two axial outer sides of the bead core. The further bead reinforcing strip having a first folded-back section extending up to a radial extension height from a vertex of the wheel rim and a second folded-back section up to a radial extension height from the vertex X of the wheel rim. | 12-04-2008 |
20090014109 | Rubber Composition for Bead Apex and Tire Using Same - The present invention can provide a rubber composition for a bead apex comprising 20 to 120 parts by weight of a silica and 5 to 80 parts by weight of a graphite on the basis of 100 parts by weight of a rubber component comprising a natural rubber in an amount of not less than 30% by weight, use of which makes it possible to consider an effect on environment, prepare for decrease in petroleum supply in future, and reduce rolling resistance and improve steering stability, and a tire prepared by using it. | 01-15-2009 |
20090038731 | Pneumatic Run-Flat Tire - A tire has a carcass reinforcement extending between a pair of opposing bead portions. At least one of the bead portions terminates axially to the outside by a tip and is intended to be mounted on a wheel rim having a bead seat that has an axially outer end closer to the axis of rotation than the axially inner end thereof. Within the bead portion is a bead ring. The radial carcass reinforcement ply is anchored in each bead portion and has at least one terminal end located in the bead portions. In the bead portion, the reinforcement ply passes radially inward of the bead ring and along the axially outer side of an adjacent rubber component and terminates at a terminal end. The terminal end is axially spaced from the downturn portion of the ply, preferably the axial spacing is equal to or greater than the bead width. | 02-12-2009 |
20090044894 | TIRE HAVING A CARCASS PLY TURN-UP PORTION WITH A CONCAVE SEGMENT - A tire having a section height, a maximum section width, an upper section above the maximum section width, and a lower section below the maximum section width is provided. The tire includes a circumferential tread, a pair of sidewalls, a pair of bead regions each having a bead core, and at least one carcass ply extending circumferentially about the tire from one bead region to the other. The at least one carcass ply is wound outwardly about at least one of the bead cores and extends toward the tread to form a turn-up portion that terminates at a turn-up end. The turn-up portion includes a concave segment that begins in the bead region and ends short of the turn-up end or at the turn-up end. | 02-19-2009 |
20090090449 | PNEUMATIC TIRE - A pneumatic radial tire, the tire comprising at least one carcass reinforcing ply and a pair of opposing bead portions. Each bead portion has a bead core and a bead apex, and the at least one carcass reinforcing ply has a down portion located axially inward of the bead and a turnup end located axially outward of the bead core. The turnup end of the ply is about parallel to the down portion. | 04-09-2009 |
20090107607 | Tire with Anchor Comprising a Bielastic Reinforcing Element - Tire comprising at least one carcass-type reinforcing structure ( | 04-30-2009 |
20090114333 | PNEUMATIC TIRE - A pneumatic radial tire has a pair of opposing bead portions | 05-07-2009 |
20090151843 | PNEUMATIC TIRE WITH INCREASED LOWER SIDEWALL DURABILITY - A pneumatic tire may use a combination of high modulus and low modulus plies to provide increased fatigue compression durability without significantly increasing the weight of the tire. | 06-18-2009 |
20090151844 | Rubber Composition for Bead Apex and Tire Having Bead Apex Prepared Using Same - There is provided a rubber composition for a bead apex which can enhance extrusion processability by optimizing a rate of vulcanization during a vulcanization process, and can improve rigidity, steering stability and a low fuel consumption property, a tire having a bead apex prepared by using the rubber composition for a bead apex and being capable of enhancing steering stability and reducing rolling resistance and a tire for a sports utility vehicle (SUV) having further enhanced durability. The rubber composition for a bead apex comprises a diene rubber, a phenol resin and/or a modified phenol resin, sulfur, hexamethylenetetramine, a vulcanization accelerator, and at least one kind of vulcanization acceleration auxiliary selected from the group consisting of a citraconimide compound, a condensate of alkyl phenol and sulfur chloride, an organic thiosulfate compound and a compound represented by the general formula: R | 06-18-2009 |
20090183815 | Tire with Lower Region Comprising a Bielastic Reinforcing Element - Tire comprising at least one carcass-type reinforcing structure ( | 07-23-2009 |
20090188601 | Pneumatic Tire - A pneumatic tire including bead apex rubbers | 07-30-2009 |
20090199945 | Tire and Crosslinkable Elastomeric Composition - Tire, including at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition, includes: (a) at least one diene elastomeric polymer; (b) at least one activator obtained by dry comilling a mixture including: at least one salt, or one oxide, or one hydroxide of a metal belonging to groups 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16 of the Periodic Table of the Elements; and at least one layered material, said layered material having an individual layer thickness of 0.01 nm to 30 nm, preferably 0.05 nm to 15 nm, and more preferably 0.1 nm to 2 nm; (c) at least one vulcanization accelerator; and (d) sulfur or derivatives thereof. | 08-13-2009 |
20090314408 | RUBBER COMPOSITION FOR CLINCH APEX AND PNEUMATIC TIRE HAVING CLINCH APEX USING SAME - There is provided the rubber composition for a clinch apex keeping hardness constant, suppressing prevulcanization, reducing rolling resistance, improving processability, suppressing generation of chafing between the clinch apex and a rim and hardly causing slipping of the clinch apex on the rim. The rubber composition for a clinch apex comprises 55 to 75 parts by weight of carbon black and 1 to 5 parts by weight of para-benzoquinolinediimine based on 100 parts by weight of a rubber component comprising 10 to 50% by weight of a natural rubber and/or an isoprene rubber and 50 to 90% by weight of a butadiene rubber having a Mooney viscosity at 100° C. of 30 to 55 in an unvulcanized state, and the pneumatic tire has the clinch apex using the rubber composition. | 12-24-2009 |
20100084071 | TIRE WITH RUBBER COMPONENT COMPRISED OF A COMPOSITE OF RUBBER AND FILM OF SYNDIOTACTIC POLYBUTADIENE INTEGRAL WITH ITS SURFACE - This invention relates to a tire having at least one rubber component which contains a cast, extruded, or calendered film of syndiotactic polybutadiene polymer. The syndiotactic polybutadiene polymer film is integral with the surface of the rubber component in a sense of being co-cured therewith. Such film may be added directly to the tire during the building process or involve a separate process of producing a tire component as a composite of the film and a rubber composition (rubber component) prior to the tire building stage. Such composite can be as is or partially pre-cured before being applied in the tire building process. The syndiotactic polybutadiene polymer film is provided to promote both stability and age durability for the tire component. | 04-08-2010 |
20100089513 | PNEUMATIC RADIAL TIRE FOR HEAVY LOADS - There is provide a pneumatic radial tire for heavy loads capable of more effectively preventing a breakdown due to separation of a rubber chafer in an area corresponding to a bead heal portion than before. A pneumatic radial tire | 04-15-2010 |
20100108228 | TIRE HAVING AN IMPROVED BEAD STRUCTURE - A heavy load vehicle tire includes a bead structure having two reinforcing layers adjacent to the inner side of the carcass turned up ply and a chafer layer including reinforcing elements. The reinforcing layers are preferably made of steel cords including preformed filaments, the cords being inclined at angles between +10° to +35° and −10° to −35° with respect to the radial plane of the tire. | 05-06-2010 |
20100116403 | TIRE WITH COMPONENT CONTAINING POLYKETONE SHORT FIBER AND EPOXIDIZED POLYISOPRENE - The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polyketone short fiber having a length ranging from 0.5 to 20 mm having a weight ranging from 0.5 to 5 decitex, and from 1 to 30 phr of an epoxidized polyisoprene having a number-average molecular weight of 5000 to 100000. | 05-13-2010 |
20100116404 | TIRE WITH COMPONENT CONTAINING POLYKETONE SHORT FIBER AND FUNCTIONALIZED ELASTOMER - The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising:
| 05-13-2010 |
20100224300 | HEAVY-LOAD RADIAL TIRE - A heavy-load radial tire includes a bead apex rubber | 09-09-2010 |
20100263780 | PNEUMATIC TIRE MANUFACTURING METHOD AND PNEUMATIC TIRE - Tire uniformity is improved. A method comprising a strip winding step S | 10-21-2010 |
20110083782 | PNEUMATIC TIRE - A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, a pair of bead cores disposed one in each of the bead portions, and a carcass ply extending between the bead portions through the tread portion and sidewall portions, wherein the carcass ply is composed of windings of at least one carcass cord looped around the two bead cores in a helical manner and/or figure-of-eight manner. | 04-14-2011 |
20110174422 | PNEUMATIC TIRE WITH COMPOUND APEX - The present invention is directed to a pneumatic tire comprising a tread, a belt structure, and a carcass, wherein the carcass has a radial ply and two bead sections;
| 07-21-2011 |
20110186201 | TIRE HAVING STAGGERED TURN-UPS - A tire having a circumferential tread, at least one belt, an inner liner, a pair of sidewalls, and at least three carcass plies. The tire includes a pair of bead portions, each including a bead core, a bead filler, a flipper, a chaffer, and a gum strip. The at least three carcass plies extend radially downward, inward of the bead filler, extend around the bead core, and continue upward, outward of the bead filler and terminate in at least three turn-up ends. At least one of the turn-up ends does not contact at least one of the radially downward extending carcass plies, the flipper, or the bead filler in one of the sidewalls, and at least two of the turn-up ends contact at least one of the radially downward extending carcass plies, the flipper, or the bead filler in one of the sidewalls. | 08-04-2011 |
20110226400 | PNEUMATIC TIRE - It is an object to provide a tire having both a ride comfort and a handling stability on a high level. | 09-22-2011 |
20110277902 | PNEUMATIC VEHICLE TIRE - A pneumatic vehicle tire includes a carcass extending between two bead cores. A belt structure is provided between the carcass and a tread strip which is connected with a pair of sidewalls. A runflat reinforcement is arranged at the inner side of each sidewall. A reinforcer is arranged within each bead portion of the tire. A bead filler extends from the bead ring along the reinforcer. To improve the runflat performance, handling and comfort properties of such a runflat tire, the reinforcer is arranged at the inner side of the bead filler. The reinforcer includes metal cords. The bead filler which extends beyond an end of the reinforcer, is made of a soft rubber compound with an IHRD hardness lower than 80. | 11-17-2011 |
20110315295 | METHOD OF MANUFACTURING A TIRE BEAD AND TIRE BEAD - Method of manufacturing a tire comprising a carcass reinforcement extending between beads, this carcass reinforcement being anchored in each bead by being wrapped around each circumferential bead reinforcement to form a turned-back portion, this carcass reinforcement comprising at least one rubber ply which is reinforced with a plurality of metal cords of low or zero permeability, each bead comprising a plurality of rubber-based strips, at least one of these strips, known as the bead rubber strip, radially on the outside of the circumferential bead reinforcement performing a function of filling and mechanical connection between the carcass reinforcement and its turned-back portion, this bead rubber strip comprising a first surface axially towards the inside in contact with the carcass reinforcement and a second surface axially towards the outside, each bead further comprising at least one other strip, known as the filler strip which, radially on the outside of the radially outermost points of the turned-back portion of the carcass reinforcement is at least partly in contact with part of the second surface of the bead rubber strip to form a region of contact between the said two profiled elements this method comprising a step of forming a plurality of grooves on at least one of the surfaces of the strips that are in contact in the contact region, these grooves being distant from one another by at least a distance equal to 5 mm, and these first surface of the bead rubber strip being completely devoid of any groove. | 12-29-2011 |
20120067495 | RUBBER COMPOSITION, PREPARATION AND TIRE WITH COMPONENT - The invention relates to a cured rubber composition, its preparation and a tire with a component of such rubber composition. | 03-22-2012 |
20120073723 | Tire with Improved Beads - Tire comprising two beads ( | 03-29-2012 |
20120073724 | Tire with Improved Beads - A tire comprising two beads ( | 03-29-2012 |
20120145302 | PNEUMATIC TIRE - A pneumatic tire having a carcass and a belt reinforcing structure is disclosed. The carcass comprising at least one inner ply which is wound around an annular bead member and extends radially outward towards the crown forming a turnup end; said tire further including a rubber apex located radially outward of said bead and having a radially outer end, wherein said turnup end is located radially outward of said rubber apex, and a reinforcement member having a first end and a second end, wherein the first end is positioned adjacent said apex, and the second end is radially outward of the apex outer end. | 06-14-2012 |
20120160391 | TIRE WITH OPTIMIZED APEX - A pneumatic tire is described having a triangular shaped apex which extends radially outward of the bead core, and wherein the apex is formed of at least two zones. Each zone is formed of a different material, wherein the first zone extends from the base of the apex to the tip of the apex, and the second zone is located adjacent the ply. The zones are preferably formed by extrusion to form one cohesive apex. The first zone is formed of a material having a G″/G′ ratio in the range of about 0.155 to about 0.183. The second zone is formed of a material having a G″/G′ ratio in the range of about 0.125 to about 0.133. | 06-28-2012 |
20120234452 | RUBBER COMPOSITION FOR BEAD APEX, AND PNEUMATIC TIRE - The present invention aims to provide a rubber composition for a bead apex and a pneumatic tire which are capable of improving the handling stability, fuel economy and extrusion processability in a balanced manner. The present invention relates to a rubber composition for a bead apex, including: a rubber component; carbon black; an inorganic filler other than silica; and a phenolic resin, wherein the carbon black has a BET specific surface area of 25 to 50 m | 09-20-2012 |
20120298277 | Tire Bead for a Heavy Civil Engineering Vehicle - The invention relates to Technique for improving the durability of the beads of a radial tire for a heavy vehicle of the civil engineering type, by reducing the rate of spread of cracks which are initiated on the axially external face of the turned-back portion of carcass reinforcement and then spread through the coating and filling polymer materials. A transition element ( | 11-29-2012 |
20120305159 | RUBBER COMPOSITION AND PNEUMATIC TIRE USING THE SAME - It is possible to provide a rubber composition including a rubber component, and 0.5 part by mass or more of at least any one of a terpene based resin and a rosin-based resin based on 100 parts by mass of the rubber component, wherein the rubber component contains 20 to 100% by mass of a natural rubber component consisting of at least any one of a natural rubber and a modified natural rubber, as well as the rubber composition which can realize both of maintenance of properties desired in various applications and improvement in processibility while a use amount of a raw material derived from a petroleum source is reduced, and a pneumatic tire using the same. | 12-06-2012 |
20120318427 | PNEUMATIC RADIAL TIRE - A pneumatic radial tire has a rubber filler includes a lower filler and an upper filler. The lower filler surrounds a bead core and has a round cross sectional shape. The upper filler has a lower rubber hardness than the lower filler. A chafer is wound up around the bead core outside of a carcass ply and includes a metal cord. A wound-up end of the carcass ply is arranged radially outside of an upper end of the lower filler and a wound-up end of the chafer. A rubber pad has a higher rubber hardness than the upper filler and sandwiches the wound-up end of the carcass ply. The rubber pad extends to radially inside of the upper end of the lower filler and contacts with an inside of a wound-up portion of the carcass ply. | 12-20-2012 |
20120325390 | TIRE HAVING AN IMPROVED BEAD - Tire comprising two beads ( | 12-27-2012 |
20130025762 | PNEUMATIC TIRE - A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, a pair of bead cores disposed one in each of the bead portions, and a carcass ply extending between the bead portions through the tread portion and sidewall portions, wherein the carcass ply is composed of windings of at least one carcass cord looped around the two bead cores in a helical manner and/or figure-of-eight manner. | 01-31-2013 |
20130037195 | SPLIT PLY TIRES AND BEAD AREA MONOCOMPONENTS - An intermediate article of manufacture formed as a first stage bead area subassembly for a split ply pneumatic tire carcass is disclosed. The bead area subassembly has an annular bead core; a bead apex; a ply strip; and preferably a sidewall affixed to the ply strip. The subassembly is formed into a disk-shaped bead area monocomponent. The ply strip is wrapped about the bead core and the apex to form a ply turnup and both the ply strip and the ply turnup extend radially outwardly from the bead core. The bead area subassembly when formed into the disk-shaped bead area monocomponent is placed on an annular holder device. The combination of the bead area monocomponent on the holder device can be stacked for storage and latter assembly into a split ply carcass. Preferably, the ply turnup can be oriented extending inside or axially inward of the bead core on final assembly to form a split ply tire having axially inside turnups. In the preferred embodiment the ply strip is reinforced by radially extending ply cords. | 02-14-2013 |
20130037196 | PNEUMATIC RADIAL TIRE - A pneumatic radial tire has a carcass ply wound up around a bead core, a chafer wound up around the bead core to be arranged in an outer side of the carcass ply, and a side wall rubber. A reinforcing rubber is provided between a rubber filler and the side wall rubber to pinch a wind-up end of the carcass ply and a wind-up end of the chafer. The reinforcing rubber has a monolithic layer extending in a tire diametrical direction. An upper end of the monolithic layer is positioned at a height which is 0.9 to 1.1 times a height of a tire maximum width position based on a rim reference line. A lower end of the monolithic layer is positioned in an outer side of the chafer at a height within ±10 mm based on the rim reference line. | 02-14-2013 |
20130056126 | AIRCRAFT TIRE - A pneumatic tire in accordance with the present invention includes two annular bead portions, a carcass, and a belt reinforcement layer. The carcass extends between the bead portions through sidewall portions and a tread portion. The carcass has at least one carcass ply of parallel cords turned up about the bead portions. The belt reinforcement layer is disposed radially outside the carcass and radially inside the tread portion. Each annular bead portion includes an annular bead core having the carcass ply turned up around the bead core, a first apex disposed adjacent and radially outward of the bead core, a second apex disposed axially outward of the bead core and the carcass ply, a first chafer disposed adjacent the carcass ply and axially outward of the bead core, and a second chafer disposed adjacent and axially outward the second apex and axially inward a sidewall portion. The first apex comprises a material with a 100 percent modulus between 1.0 MPa and 6.0 MPa. The second apex comprises a material with a 100 percent modulus between 1.0 MPa and 6.0 MPa. The first chafer comprises a material with a 100 percent modulus between 2.0 MPa and 4.0 MPa. The second chafer comprises a material with a 100 percent modulus between 1.0 MPa and 6.0 MPa. The sidewall portions comprise a material with a 100 percent modulus between 1.0 MPa and 2.0 MPa. | 03-07-2013 |
20130075010 | RUBBER COMPOSITION FOR BEAD APEX AND TIRE HAVING BEAD APEX PREPARED USING SAME - There is provided a rubber composition for a bead apex which can enhance extrusion processability by optimizing a rate of vulcanization during a vulcanization process, and can improve rigidity, steering stability and a low fuel consumption property, a tire having a bead apex prepared by using the rubber composition for a bead apex and being capable of enhancing steering stability and reducing rolling resistance and a tire for a sports utility vehicle (SUV) having further enhanced durability. The rubber composition for a bead apex comprises a diene rubber, a phenol resin and/or a modified phenol resin, sulfur, hexamethylenetetramine, a vulcanization accelerator, and at least one kind of vulcanization acceleration auxiliary selected from the group consisting of a citraconimide compound, a condensate of alkyl phenol and sulfur chloride, an organic thiosulfate compound and a compound represented by the general formula: R | 03-28-2013 |
20130098523 | RUBBER COMPOSITION FOR CLINCH APEX AND PNEUMATIC TIRE - The present invention provides a rubber composition for a clinch apex which improves in fuel economy, flex crack growth resistance, and processability in a balanced manner, and also provides a pneumatic tire produced using the rubber composition. The present invention relates to a rubber composition for a clinch apex, including: a modified natural rubber having a phosphorus content of 200 ppm or less; and at least one of carbon black and a white filler. | 04-25-2013 |
20130118669 | Reinforced Radial Tire - A tire includes a pair of bead portions, with each bead portion having a bead core and a bead filler portion. A belt is disposed below a circumferential tread, in the tread portion of the tire. A carcass ply has a main portion extending between the pair of beads and a pair of turn-up portions that wrap around the beads and terminate below the belt, in the tread portion of the tire. The tire further includes a pair of nylon reinforcements, wherein each nylon reinforcement is disposed axially between a respective bead filler portion and a main portion of the carcass ply. Additionally, each nylon reinforcement has a top end disposed above a top end of the respective bead filler portion. Each nylon reinforcement further has a bottom end disposed below the top end of the respective bead filler portion and above a respective bead core. | 05-16-2013 |
20130133806 | TIRE - Disclosed is a tire ( | 05-30-2013 |
20130139943 | HEAVY-DUTY PNEUMATIC TIRE - A heavy-duty pneumatic tire includes a carcass including a carcass ply extending from a tread portion through a sidewall portion and turned up around a bead core of a bead portion. The bead core includes a radially inner surface extending along a bottom surface of the bead portion in the radial direction of the tire. Under both conditions that include an unloaded standard condition where the tire is mounted on a standard rim and inflated to regular internal pressure and a loaded standard condition where the tire in the unloaded standard condition above is loaded with a regular load and grounded at a camber angle of 0 degrees, the tire has an angle between the radially inner surface of the bead core and a rim sheet surface of the standard rim being in a range of 0 plus/minus 3 degrees. | 06-06-2013 |
20130174956 | PNEUMATIC TIRE - The disclosed pneumatic tire ( | 07-11-2013 |
20130192737 | TIRE BEAD FOR A HEAVY CIVIL ENGINEERING VEHICLE - A technique for improving the durability of the beads of a radial tire for a heavy vehicle of the civil engineering type, by reducing the rate of spread of cracks initiated at the turned-back end of carcass reinforcement and the spread through the coating, edge-binding and filler polymer materials. A transition element ( | 08-01-2013 |
20130206312 | Tire with Improved Bead - A tire comprising two beads, each bead comprising an annular reinforcing structure, a carcass reinforcement, anchored in the two beads by a turn-up around the annular reinforcing structure, so as to form a main portion and a wrapped-around portion. Each bead comprises a bead filler situated at least partially between the main portion and the wrapped-around portion of the carcass reinforcement. Each bead further comprises an outer strip situated axially on the outside of the wrapped-around portion of the carcass reinforcement. The bead filler has a thickness E(r), this thickness corresponding to the length of the intersection of the direction perpendicular to the main portion of the carcass reinforcement with the bead filler, r denoting the distance separating the point of intersection of the direction perpendicular to the main portion of the carcass reinforcement with the carcass reinforcement from the radially innermost point of the annular reinforcing structure. The assembly formed by the bead filler and the outer strip has a thickness ET(r). For all the points of intersection of which the radial distance from the radially innermost point of the annular reinforcing structure is greater than or equal to 10% and less than or equal to 35% of the radial height H of the tire, the ratio E(r)/ET(r) is greater than or equal to 0.3 and less than or equal to 0.5. | 08-15-2013 |
20130240107 | Pneumatic Tire - A pneumatic tire is proposed in which reduction in weight and steering stability of the tire are both achieved to a high degree. A height of a bead filler from a bead heel is from 10 to 30 mm, an inner liner layer disposed inward of a carcass layer is formed from a thermoplastic resin or a thermoplastic elastomer composition that is blended from a thermoplastic resin component and an elastomer component having a Young's modulus of from 70 to 1500 MPa and a thickness of from 0.05 to 0.25 mm, and an end of the inner liner layer is disposed farther inward in a tire radial direction than an end outward in the tire radial direction of the bead filler. | 09-19-2013 |
20130248076 | BEAD STRUCTURE FOR A PNEUMATIC TIRE - A pneumatic tire includes a tread extending circumferentially around an outer portion of the pneumatic tire; two sidewalls extending radially inward from the tread; a carcass ply extending radially inward through each sidewall; two annular bead portions securing radially inner portions of the carcass ply; and two apexes extending radially outward from each bead portion. The bead portions include a composite material constructed of resin-impregnated fabric layers including a resin, a hardener, an accelerator, and fibers. | 09-26-2013 |
20130292026 | TYRE AND TYRE BUILDING METHOD - A tyre having two beads, with a toroidal body ply wound about the two beads to form two turn-ups, and two bead fillers, each contacting a bead and are partly enclosed inside a turn-up of the body ply. The bead filler includes a first elastomer ring, which is initially placed flat and between the body ply, and a bead, which is turned up about the bead when forming the corresponding turn-up of the body ply, to bring two opposite ends of the first elastomer ring into close proximity The bead filler is cured, after being turned up about the bead, to connect the two opposite ends of the first elastomer ring, while at the same time eliminating the air trapped inside the turn-up of the body ply. | 11-07-2013 |
20130306213 | TIRE HAVING GUM STRIP AND CHAFER - A tire includes a circumferential tread, at least one belt, and a pair of sidewalls, with each sidewall forming an outermost point of a side of the tire. The tire further includes a pair of bead portions and at least one carcass ply extending circumferentially about the tire from one bead portion to the other. The tire also has a chafer having a first portion radially below the bead portion and the carcass ply, and a second portion axially outward from the bead portion and the carcass ply, wherein the sidewall is located radially below the first portion of the chafer and axially outward from the second portion of the chafer. A sidewall gum strip extends radially upward from the second portion of the chafer. The sidewall gum strip is located axially between the carcass ply turn-up end and at least a portion of the chafer. | 11-21-2013 |
20130327460 | PNEUMATIC TIRE - In a carcass ( | 12-12-2013 |
20130340911 | BEAD CORE-APEX SUBASSEMBLY, PNEUMATIC TIRE THEREWITH AND METHOD OF MANUFACTURING A BEAD CORE-APEX SUBASSEMBLY - A bead core-apex subassembly comprises an annular bead core, a flipper and an apex. The flipper is wrapped about the bead core such that it encloses the bead core. The apex is in contact with the flipper and comprises at least a first segment and a second segment, the first segment having a composition different from the composition of the second segment. A method comprises the steps of providing an annular bead core; wrapping a flipper about the annular bead core; positioning the bead core with the flipper on a rotatable support surface; providing a nozzle in fluid communication with a pumping or extrusion device; rotating the support surface about an axis; and discharging a rubber compound through the nozzle onto the rotating support surface and forming an apex from the discharged rubber compound, the apex being attached to the flipper. | 12-26-2013 |
20140000780 | Tire with Improved Beads | 01-02-2014 |
20140008002 | TIRE WITH IMPROVED BEADS - Tire comprising two beads comprising an annular reinforcing structure, a carcass reinforcement anchored in the two beads so as to form a main portion and a wrapped-around portion, each wrapped-around portion extending radially outwards as far as an end situated at a radial distance DEC that is less than or equal to 10% of the radial height H of the tire; each bead comprising an apex made of a rubber composition having an elastic modulus greater than 40 MPa, extending radially as far as a radial distance DEE1 comprised between 10% and 15% of the height H; each bead further comprising an outer strip made of a rubber composition that has an elastic modulus G′ less than or equal to 15 MPa and a viscous modulus G″ such that: G″[MPa]≦0.2·G′[MPa]−0.2 MPa, extending at least between 20% and 25% of the height H, the apex having an axial thickness E(r) that is substantially a linear function of r, r denoting the distance with respect to the radially innermost point of the annular structure, wherein the entity formed by the apex and outer strip has a thickness ET(r) such that, in the range of distances r comprised between 25 and 45% of the height H of the tire, the variation in thickness | 01-09-2014 |
20140014250 | Tire with Improved Beads - Tire comprising a carcass reinforcement and two beads, each comprising at least one annular reinforcing structure, a bead filler and an outer strip made from a rubber composition having an elastic modulus G′ of less than or equal to 15 MPa and a viscous modulus G″ such that G″ [MPa]≦0.2·G′ [MPa]−0.2 MPa, wherein the bead filler has a thickness E(r) perpendicular to the carcass reinforcement with the bead filler, r denoting the distance from the radially innermost point of the annular reinforcing structure, wherein the assembly formed by the bead filler and the outer strip has a thickness ET(r), wherein the thickness ET(r) changes such that, in the range of distances r comprised between 25 and 45% of the height H of the tire, the variation in thickness is less than or equal to −0.25 mm/mm over at least 4% of the height H, wherein, for all the points of which the distance r is greater than 10% and less than 35% of the height H, the ratio E(r)/ET(r) is greater than 0.3 and less than or 0.5, wherein, in any radial section, the bead filler has a cross section of area S | 01-16-2014 |
20140083591 | PNEUMATIC TIRE | 03-27-2014 |
20140150949 | BEAD OF A TIRE FOR A HEAVY VEHICLE OF CONSTRUCTION PLANT TYPE - The invention relates to improving the endurance of the beads of a radial tire for a heavy vehicle of construction plant type, by reducing the cracking that starts at the surface of contact between a first polymer filling material that is radially furthest towards the inside and in contact with the bead wire and a second polymer filling material that is radially on the outside of the first polymer filling material. According to the invention, a transition element, made of a polymer transition material, is in contact, via its radially inner face, with the first polymer filling material and is in contact, via its radially outer face, with the second polymer filling material, and the elastic modulus at 10% elongation of the polymer transition material is somewhere between the respective elastic moduluses at 10% elongation of the first and second polymer filling materials. | 06-05-2014 |
20140158272 | BEAD OF A TIRE FOR A HEAVY VEHICLE OF CONSTRUCTION PLANT TYPE - The invention relates to improving the endurance of the beads of a radial tire for a heavy vehicle of construction plant type by reducing the cracking that starts at the end of the turn-up and spreads through the polymer coating, edging and filling materials. According to the invention, a transition element, made of a polymer transition material, is at least partially in contact, on its axially outer face, with the polymer edging material and, on its axially inner face, with a polymer filling material, the radially outer and radially inner ends of the transition element are respectively radially on the outside and radially on the inside of the end of the turn-up and the elastic modulus at 10% elongation of the polymer transition material is somewhere between the respective elastic moduluses at 10% elongation of the polymer edging material and of the polymer filling material with which the transition element is in contact. | 06-12-2014 |
20140166179 | PNEUMATIC TIRE AND METHOD OF PRODUCING THE SAME - A pneumatic tire with short fibers fixed to the inner surface of the tire with improved peel resistance, and a method of producing such a pneumatic tire. The pneumatic tire has a carcass toroidally extending from a tread portion along a pair of sidewall portions to a pair of bead portions, and bead fillers provided radially outwardly of bead cores embedded in the bead portions, including flocking areas in which many short fibers are fixed to at least part of an inner surface of the pneumatic tire with an adhesive. The flocking areas are positioned such that their tire radial direction inner ends are positioned inwardly in the tire radial direction as compared to the tire radial direction outer ends of the bead fillers and are spaced a given distance outward in the tire radial direction apart from bead toes. | 06-19-2014 |
20140345777 | METHOD OF MANUFACTURING A TIRE BEAD CORE ASSEMBLY, A TIRE BEAD CORE ASSEMBLY FORMING APPARATUS, A TIRE BEAD CORE ASSEMBLY, A TIRE, A BEAD FILLER INTERMEDIATE AND A USE OF A COMPRESSION MOULD - The invention relates to a method of manufacturing a tire bead core assembly having a bead core and a bead filler. The method comprises the step of placing a bead core in the compression mould. The method also comprises the step of placing a bead filler intermediate in the compression mould. Further, the method comprises the step of pressing the bead filler intermediate onto the bead core using the compression mould. It is noted that the step of pressing the bead filler intermediate onto the bead core may comprise the step of transforming the bead filler intermediate into a bead filler. | 11-27-2014 |
20140360647 | TIRE WITH IMPROVED BEADS - Tire having two beads each comprising an annular reinforcing structure and a carcass reinforcement which is anchored in the two beads by being wrapped around the annular reinforcing structure so as to form, in each bead, a main portion and a wrapped-around portion, wherein each bead comprises an apex situated between the main portion and the wrapped-around portion of the carcass reinforcement, and an outer strip positioned axially on the outside of the carcass reinforcement and of the apex, the apex and the outer strip being made of a rubber compound that has an elastic modulus G′ less than or equal to 15 MPa and a viscous modulus G″ such that: G″ [MPa]≦0.2·G′ [MPa]−0.2 MPa, the elastic and viscous moduli being measured at 23° C.; wherein the entity formed by the apex and the outer strip has a thickness E(r), the thickness E(r) varying such that, in the range of distances r comprised between 25 and 45% of the height H of the tire, the variation in thickness | 12-11-2014 |
20150020944 | PNEUMATIC TIRE HAVING A SINGLE CARCASS PLY REINFORCED WITH POLYESTER CORDS - A pneumatic tire includes a pair of axially spaced apart annular bead cores, each bead core comprising a plurality of metal wraps, each bead core having a radial cross-sectional shape; and a single carcass ply reinforced with polyester cords, the single carcass ply being folded about each bead core, the carcass ply having a main portion that extends between the bead cores and turnup portions that are folded around the bead cores, the polyester cords having a construction of 2000-2000 dtex/½ 8-10/8-10 tpi and 20-30 epi. | 01-22-2015 |
20150020945 | TIRE ASSEMBLY HAVING AN IMPROVED BEAD AND A MOUNTING RIM - Assembly comprising a tire and a mounting rim, the tire comprising two beads each comprising at least one annular reinforcing structure and a carcass reinforcement anchored in the two beads by a turn-up, each bead comprising a filler of a rubber composition extending radially a radial distance DBE from the radially innermost point of the annular reinforcing structure, DBE being less than or equal to 10% of the radial height H of the tire, at least one sidewall further comprising a stiffening reinforcement of metallic reinforcing elements oriented at an angle less than or equal to 10 degrees to the circumferential direction, and positioned such that the distance DAE between the radially innermost point of the annular reinforcing structure and the radially outer end of the stiffening reinforcement is greater than or equal to 20% and less than or equal to 40% of H and that the distance DAI between the radially inner point of the annular reinforcing structure and the radially inner end of the stiffening reinforcement is less than or equal to 20% of H. | 01-22-2015 |
20150059955 | TIRE - A tire includes: a tire frame member formed in a ring shape from a frame resin material, and including a pair of bead sections, a pair of side sections, and a crown section; a ring shaped bead core that is embedded in and joined to each of the bead sections, and that is formed by a single strand, or plurality of strands, of bead cord extending in the tire circumferential direction, and covered with, and joined to, a covering resin material; and an extension portion that extends from each of the bead cores in a direction that intersects with the tire circumferential direction when viewed from a tire side face, and that is joined to the tire frame member. | 03-05-2015 |
20150107746 | TIRE APEX STRUCTURE - A vehicle tire having an apex component that is made of a plurality of elastomeric strips containing reinforcement fibers that are aligned substantially parallel to each other in a controlled angle of orientation within the strip wherein the orientation is selected such that it increases the stiffness of the apex component. | 04-23-2015 |
20150144242 | TIRE FOR A HEAVY DUTY VEHICLE - A tire which is intended to bear heavy loads and the endurance of which is improved. The tire contains, in the bead region, at least one internal annular insert, the said insert having a rubber composition containing a polyisoprene elastomer, between 45 phr and 60 phr of a reinforcing filler containing from 43 to 55 phr of a reinforcing inorganic filler with a BET specific surface of between 155 and 185 m | 05-28-2015 |
20150144243 | PNEUMATIC TIRE - A pneumatic tire, which may include a bead portion reinforcing cord layer disposed along a turn-up portion of a carcass, includes at least one component member selected from the group consisting of a carcass cord ply and a belt cord layer and/or the bead portion reinforcing cord layer including an end rubber wrapping the end part thereof, the end rubber having a loss tangent larger than 0.20 and 0.35 or smaller at 2% strain at 25° C. and a difference ΔE′ between a storage modulus at 0.1% strain and a storage modulus at 2% strain at 25° C. being 10 MPa or more and 30 MPa or less, and a coating rubber covering a cord in the component member and/or the bead portion reinforcing cord layer including the end rubber has a loss tangent at 2% strain at 25° C. of 0.20 or less. | 05-28-2015 |
20150298509 | TIRE - A bead filler outer end | 10-22-2015 |
20150298510 | Pneumatic Tire - A pneumatic tire in which two carcass layers including carcass cords are laid between a pair of bead portions. Bead cores and bead fillers are disposed in the bead portions. At least two belt layers are disposed on the outer circumferential side of the carcass layers. Both ends of the inner carcass layer are folded back from the tire inner side to the tire outer side around the bead cores. The ends of the folded back portions of the inner carcass layer are disposed between the innermost belt layer and the outer carcass layer, while both ends of the outer carcass layer are disposed so as to pass between a main portion of the inner carcass layer and the bead fillers. Both ends of the outer carcass layer terminate at the bead portions without being folded back around the bead cores. | 10-22-2015 |
20150306920 | Pneumatic Tire - A pneumatic tire has two carcass layers including carcass cords are laid between a pair of bead portions, bead cores and bead fillers are disposed in the bead portions, and at least two belt layers are disposed on the outer circumferential side of the carcass layers, the tire being characterized in that both ends of the inner carcass layer are folded back from the tire inner side to the tire outer side around the bead cores, and the ends of the folded back portions of the inner carcass layer are disposed between the innermost belt layer and the outer carcass layer, while both ends of the outer carcass layer are disposed so as to pass between a main portion of the inner carcass layer and the bead fillers, and both ends of the outer carcass layer terminate at the bead portions without being folded back around the bead cores. | 10-29-2015 |
20150321516 | PNEUMATIC TIRE - A pneumatic tire for a motorcycle includes a tread having a tread surface which makes contact with ground, a pair of beads each positioned on a radially inner side of the tread, a carcass bridging one of the beads and the other one of the beads, and a reinforcement layer laminated on the carcass on the radially inner side of the tread. Each of the beads includes a core and an apex extending from the core in a radially outward direction, and the apex of each of the beads has an outer edge positioned on a radially outer side of an edge of the tread surface. | 11-12-2015 |
20150321524 | Bead of a Tire For a Heavy Vehicle of the Construction Plant Type - Improving endurance of bead of radial tire for heavy vehicle. Tire has two beads ( | 11-12-2015 |
20150328939 | Heavy Vehicle Tire Bead - Heavy vehicle tire with two beads ( | 11-19-2015 |
20160001609 | Bead of a Tire For a Heavy Vehicle Of Construction Plant Type - Radial tire for heavy vehicle comprises carcass layer ( | 01-07-2016 |
20160082783 | 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. One or more bead wire codes formed by stacking and arranging bead wires in a plurality of layers are formed on one or both sides of the carcass ply. One or more bead filler films are placed between the bead wire codes. An end of the carcass ply is wrapped around at least one bead wire code. The wrap-around end of the carcass ply is disposed between neighboring bead wire codes or beside the axially outermost bead wire code. | 03-24-2016 |
20160101581 | PRE-FORMED APEX/BEAD COMPOSITE AND TIRE WITH PRE-APEXED BEAD - The invention relates to preparation of an apex/bead composite as a pre-apexed tire bead, and pneumatic tire containing such pre-apexed bead. The invention relates to such pre-apexed bead where the apex is comprised of a rubber composition which contains a syndiotactic-1,2-polybutadiene polymer. | 04-14-2016 |
20160101656 | PREPARATON OF APEX/BEAD COMPOSITE AND TIRE WITH PRE-APEXED BEAD - The invention relates to preparation of an apex/bead composite as a pre-apexed bead, and pneumatic tire containing such pre-apexed bead. The invention relates to such pre-apexed bead where the apex is comprised of a rubber composition which contains a syndiotactic-1,2-polybutadiene polymer. | 04-14-2016 |
20160167449 | PNEUMATIC TIRE | 06-16-2016 |
20160176242 | PNEUMATIC RADIAL TIRE | 06-23-2016 |
20160200150 | TIRE | 07-14-2016 |