Characterized By The Extent Of The Fold Up Into The Sidewall Of The Tire Relative To The Other Tire Dimensions Patents (Class 152/554)
  • Patent number: 10864781
    Abstract: A pneumatic tire has a rim strip rubber. A radial height of the rim strip rubber on the basis of an outer diameter position of a bead core is equal to or more than 70% of a radial height of a tire outer diameter position. An upper end of a side reinforcing layer is arranged closer to an outer side radially than an upper end of a bead filler. A distance from a tire maximum width position to the upper end of the side reinforcing layer is equal to or less than 5 mm. The maximum thickness Tw of the rim strip rubber between the upper end of the bead filler and the upper end of the side reinforcing layer is greater than the maximum thickness Tm of the rim strip rubber closer to the outer side radially than the upper end of the side reinforcing layer.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: December 15, 2020
    Assignee: TOYO TIRE CORPORATION
    Inventor: Kazuo Shimomura
  • Patent number: 8997813
    Abstract: A tire comprising at least one carcass-type reinforcing structure anchored on each side of the tire to a bead, each bead extending radially outwards in the form of a sidewall, the sidewalls radially towards the outside meeting a tread, and comprising, under the tread, a crown reinforcing structure consisting of at least one layer of reinforcing elements making angles of between 10° and 60° with the circumferential direction and known as a working layer, radially on the outside of the carcass-type reinforcing structure.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: April 7, 2015
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Luc Bestgen, Alain Valle
  • Patent number: 8973636
    Abstract: Tire (10) for a heavy goods vehicle comprising a radial carcass reinforcement (60) anchored in each of the beads (50) to an anchoring structure (700), comprising a circumferential reinforcement (70), the carcass reinforcement (60) being partially wrapped around the anchoring structure (700), the tire (10) also comprising a coupling reinforcement (150) comprising a first part (151) in contact with the carcass reinforcement (60) and being extended by a second part (152) in contact with the anchoring structure (700) as far as a point (157) radially on the outside of the anchoring structure (700), located axially between the axially inner-most point (702) and the axially outermost point (704) of the anchoring structure (700), the tire (10) also comprising a stiffening reinforcement (160) surrounding the coupling reinforcement (150) and running radially on the inside of the anchoring structure (700) and of the coupling reinforcement (150), in which the axially outside end point (166) of said stiffening reinforceme
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: March 10, 2015
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Philippe Johnson, Bopha Grisin, Olivier Lenepveu
  • Patent number: 8955569
    Abstract: An airplane tire has a carcass reinforcement that comprises at least two inner layers wrapped around the bead core from the inside to the outside of the tire to form respectively a turn-up, and at least one outer layer wrapped around the bead core from the outside to the inside of the tire, and axially outward, within the sidewall, of any inner layer. One of the at least two inner layers that is axially nearest the bead core is decoupled for at least a part of its length, in an area adjacent to and radially outward of the bead core, from the turn-ups and carcass reinforcement layers which are axially outward of it, by at least one polymeric bead filler compound.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: February 17, 2015
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: François Chambriard, Jean Luc Dendievel
  • Patent number: 8950456
    Abstract: An assembly including a tire having beads, said bead axially including outside the turn-up a layer of a material defining a bead outer profile, such that the distance A, between the carcass frame and the bead outer profile, is as defined in formula (Z), B being the distance between the end of the turn-up, said bead including first and second profiles between the carcass frame and the turn-up, the first profile extends from the bead wire and is made of a material having an extension secant modulus at a 10% elongation higher than 20 MPa, a second profile arranged in the bead such as to be in contact with a surface of the first profile and the turn-up, made of a material having an extension secant modulus at a 10% elongation of at least 7 MPa and an extension secant modulus at a 100*% extension of at least 4.5 MPa.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: February 10, 2015
    Assignees: Compagnie Generale des Etablissements, Michelin Recherche et Techique S.A.
    Inventors: Christophe Laurent, David Dean, David Lavialle
  • Patent number: 8939185
    Abstract: Provided is a pneumatic radial tire having a rubber chafer arranged on the carcass ply in a contacting area of a bead portion with a rim; a bead filler arranged radially outside on the bead core; and a side rubber extending along an outer surface of the carcass in each a side wall portion. When inflated with a predetermined pneumatic pressure, an outer end of the folded portion of the carcass and an outer end of the bead filler are placed inward from an outer end r of a rim flange of the rim in the radial direction; an outer end of the rubber chafer is placed outward from the outer end r of the rim flange in the radial direction; and a part of a side rubber located outward from the outer end of the rim flange in the radial direction is disposed between the rubber chafer.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: January 27, 2015
    Assignee: Bridgestone Corporation
    Inventor: Toshiharu Ito
  • Patent number: 8925605
    Abstract: Provided is a run-flat tire in which a side-reinforcing rubber is arranged on the inside of the carcass in the tire width direction on both sidewall portions. The carcass plies include cords made of a material having a heat shrinkage rate of 2% to 8% at 177° C., and the run-flat tire further includes a reinforcing cord layer which includes cords made of a material having a heat shrinkage rate of less than 2% at 177° C., the reinforcing cord layer being arranged on the outside of the side-reinforcing rubber in the tire width direction on both sidewall portions.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: January 6, 2015
    Assignee: Bridgestone Corporation
    Inventor: Daisuke Maehara
  • Patent number: 8905102
    Abstract: 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.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: December 9, 2014
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Taiichi Nishio
  • Patent number: 8905101
    Abstract: A run flat tire where: the ratio of the cross-sectional height on the inner side in the radial direction to the cross-sectional height on the outer side in the radial direction, having the maximum tire width in a state inflated to an air pressure as a boundary; the inclination angle of the outer wall in the upper region of the side wall portion; the curving form of the tread surface; the position of the carcass folded over end; the height of the bead filler; the relationship between the thickness of the outer side rubber taken on a line normal to the rim line and the maximum thickness of the outer side rubber in an upper region of the bead portion; and the relationship of the thickness of the inner side rubber and the thickness of the outer side rubber taken on a line normal to the rim line are stipulated.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: December 9, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Kenji Horiuchi
  • Publication number: 20140345775
    Abstract: A tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, and having a crown reinforcement, itself topped radially by a tread, the said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords exhibiting, in the “permeability” test, a flow rate of less than 20 cm3/min and at least one layer of the carcass reinforcement is provided, on at least one face, with non-continuous textile threads composed of two parts, one end of a textile thread being positioned on the turn-up of the said at least one layer of reinforcing elements around the bead wires and the other end of a textile thread being radially interior to the orthogonal projection of the shoulder end onto the said at least one face of the said at least one layer of the carcass reinforcement.
    Type: Application
    Filed: December 18, 2012
    Publication date: November 27, 2014
    Applicants: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Charlotte Caffeau, Isabelle Demay, Bernard Jault
  • Patent number: 8881783
    Abstract: There is provided a pneumatic tire having excellent uneven wear resistance performance, low rolling resistance and durability of side portion's appearance. The pneumatic tire comprises a carcass as a framework consisting of at least one carcass ply troidally extending between bead portions embedded with a pair of bead cores and turned around the bead cores from an inner side to an outer side in a tire width direction, a belt comprising at least one inclined belt layer and a tread successively disposed on a radially outer side of a crown portion of the carcass, wherein a ratio BD/BW is in a range between 0.01 and 0.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: November 11, 2014
    Assignee: Bridgestone Corporation
    Inventor: Shinsaku Katayama
  • Patent number: 8869852
    Abstract: A run flat tire with reinforced sides, wherein inner and outer rubber thickness ratios centered on a carcass layer in a side wall portion are stipulated and a side filler extending in the tire radial direction is embedded on the outer wall surface side of the side wall portion. In this run flat tire, the modulus of the side filler/modulus of a side reinforcing layer, the modulus of a rim cushion/a modulus of the side filler, the cross-sectional area of a bead filler/cross-sectional area of the side filler, the cross-sectional area of the side filler/cross-sectional area of the side reinforcing layer, the rubber hardness of the side reinforcing layer, and the material of belt cover layers are each stipulated.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: October 28, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Kenji Horiuchi
  • Patent number: 8863800
    Abstract: A pneumatic tire includes a carcass having a first portion in which a distance between ply cords of a carcass body section and a carcass folded section gradually decreases from a position of a bead core toward outside in a radial direction of the tire, a second portion in which the distance between the ply cords gradually increases from the first portion toward outside in the radial direction of the tire, and a third portion in which the distance between the ply cords gradually decreases from the second portion toward outside in the radial direction of the tire. A notched portion is provided on a widthwise outer skin rubber of the carcass folded section of the second portion by notching the widthwise outer skin rubber inwardly in the width direction of the tire.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: October 21, 2014
    Assignee: Bridgestone Corporation
    Inventor: Akira Sasaki
  • Patent number: 8776853
    Abstract: A tire comprising at least one carcass-type reinforcing structure and comprising a crown reinforcing structure having at least one working layer.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 15, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Luc Bestgen, Alain Valle
  • Patent number: 8752601
    Abstract: In a cross section in a tire width direction when a tire is mounted on a prescribed rim (7), a belt has a flat shape in the tire width direction, the height (SWh) of the position where the tire width is the maximum is more than half the cross-sectional height (SH) of the tire, and a path length (CSR1) of the carcass from an intersection (I1) to an intersection (I2), is longer than a path length (CSR2) of the carcass from the intersection (I1) to an intersection (I3).
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: June 17, 2014
    Assignee: Bridgestone Corporation
    Inventors: Fumio Takahashi, Souto Nakayama
  • Patent number: 8701729
    Abstract: A pneumatic radial tire has a carcass ply which extends between bead cores arranged in a pair of bead portions. The carcass ply is wound up to an outer side in a tire radial direction around the bead cores. A chafer is arranged in such a manner as to wrap around the carcass ply from an inner side to an outer side in a tire width direction, around the bead core. An inner end of the chafer positioned in the inner side in the tire width direction is arranged in the outer side in the tire radial direction than a winding end of the carcass ply. A reinforcing rubber tapering off toward the outer side in the tire radial direction is provided adjacently to the outer side in the tire radial direction of the inner end of the chafer.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: April 22, 2014
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Norihiko Kodama
  • Patent number: 8640754
    Abstract: A side wall reinforced run flat tire, wherein a second carcass layer that does not reach a bead core is disposed along the outer peripheral surface of a carcass layer. A position of an outer peripheral edge of a bead filler, a relationship between a rubber thickness Gc of the inner side and a rubber thickness Ga of an outer side taken on the line X normal to the rim line and centered on the carcass layer, a relationship between the rubber thicknesses Ga and Gb of the side wall rubber in an upper region of a bead portion, and a position of a folded up end of the carcass layer are each stipulated.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: February 4, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Kenji Horiuchi
  • Publication number: 20130312886
    Abstract: The present invention provides a pneumatic radial tire of the present invention is characterized in that: in a cross sectional view in the tire widthwise direction in the predetermined state thereof, provided that: i) Hout represents a distance in the tire radial direction between the maximum width position from the tire equatorial plane and a ground-contact end on the vehicle outer side of the tread and Hin represents a distance in the tire radial direction between the maximum width position from the tire equatorial plane and a ground-contact end on the vehicle inner side of the tread, Hout<Hin; ii) radius of curvature (Rout)of a tire side portion on the vehicle outer side, at the maximum width position thereof, is smaller than radius of curvature (Rin) of a tire side portion on the vehicle inner side, at the maximum width position thereof; and iii) a negative ratio of a ground-contact surface in a vehicle-outer side half portion of the tread is smaller than a negative ratio of a ground-contact surface in
    Type: Application
    Filed: February 22, 2012
    Publication date: November 28, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Yasuaki Ohno
  • Patent number: 8550136
    Abstract: A wrap-around toeguard 18 for a pneumatic tire 10 has a carcass ply 12 or plies 12, 14 with a locked tie-in construction. Each wrap-around toeguard 18 is a non cord reinforced elastomeric unitary strip wound 360.degree. in a singular annular bead. The wrap-around toeguard cord reinforced unitary strip 18 can be formed of a single elastomeric composition having a shore hardness D of greater than 40. Alternatively the wrap-around toeguard may additionally include an apex portion 29 and a chafer portion 27 along with the toeguard portion 28, each portion 27, 29 being co-extruded or otherwise hot formed and shaped with the toeguard portion 28 to form the unitary strip 18 and can have distinct elastomeric composition relative to the toeguard portion 28.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: October 8, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: James Oral Hunt, Michael Christopher Kulton, Paul Bryson Allen, Timothy Lee Fry
  • Patent number: 8413700
    Abstract: 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 chafer, 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.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: April 9, 2013
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Todd A Buxton, Bradley J Harris, Taro Iwamoto, Christopher A Swartzwelder
  • Patent number: 8365787
    Abstract: The pneumatic tire includes: an air permeation preventive layer disposed in the inner surface of the tire; a belt layer buried in a tread part; and a cord layer formed by arranging a plurality of cords. The cord layer is disposed between the air permeation preventive layer and the belt layer, and extends to a bead part side further from a tire maximum width position. In addition, at least a part of the cord layer is located close to the outer surface of the tire, at a position closer to the bead part side than the tire maximum width position, so that the distance between the cords and the outer surface of the tire is not more than 1 mm.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: February 5, 2013
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Jun Matsuda, Yoshiaki Hashimura
  • Patent number: 8327898
    Abstract: An of object of the present invention is to provide a pneumatic tire which exhibits improved durability of a bead portion due to further suppressing compression strain at a carcass ply fold-up portion and, in particular, suppressing fatigue fracture at the carcass ply fold-up portion. Cord distance between the carcass main body and the carcass ply fold-up portion gradually decreases from the bead core toward the outer side in the tire radial direction to reach the minimum value a, then gradually increases to the maximum value b; provided that height Hf of a flange of an application rim, measured from a base line of the application rim in a state where the tire is assembled with the rim and inflated at a prescribed internal pressure, is 1, heights HA and HB measured from the base line to the positions on the carcass main body corresponding to the minimum and the maximum values, respectively, and the maximum height HT of the tire satisfy relationship formulae below, HT?8.00 1.26?HA?2.14 2.43?HB?3.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: December 11, 2012
    Assignee: Bridgestone Corporation
    Inventor: Shun Oogane
  • Patent number: 8291953
    Abstract: Tire comprising at least one carcass-type reinforcing structure (6) anchored on each side of the tire. The anchoring includes a turning up of the carcass-type reinforcing structure around a bead core (15) in such a way as to form a turned-up section (8). The tire also includes at least one circumferential bielastic reinforcing element (10) made of a bielastic fabric, in which the fabric employed is a bielastic knitted fabric, that is a stitched fabric in which the loops forming the stitches are capable of moving relative to each other. The at least one bielastic reinforcing element (10) being arranged so as to extend substantially parallel along a portion of the reinforcing structure (6) which is situated in that region of the bead (4) of the tire that is axially outward relative to the reinforcing structure, in the immediate vicinity of the latter.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: October 23, 2012
    Assignee: Michelin Recherche et Technique S.A.
    Inventor: Jean-Michel Huyghe
  • Patent number: 8291952
    Abstract: The object of the present invention is to provide a pneumatic radial tire for heavy load which effectively improve three kinds of durability, i.e., durability of the turn-up portion of the carcass, durability of the rubber layer of the carcass and cut resistance of the carcass cords. A steel radial carcass 12 is composed of main carcass portion 12M and turn-up portions 12E. The tire is fitted on a standard rim 20 and suppose that P1 is a position on the tire outer surface with a radial distance of (R+1.18*Hf) from the central axis of the tire, P2 is a position on the tire outer surface with a radial distance of (R+0.81*Hf) from the central axis of the tire, T1 and T2 are intersections of normal lines drawn from P1 and P2, respectively, to the main carcass portion 12M and the turn-up portion 12E, M1 and M2 are intersections of the normal lines and the main carcass portion 12M. T1, T2, M1 and M2 satisfy given mutual positional relationships.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: October 23, 2012
    Assignee: Bridgestone Corporation
    Inventor: Jyunya Asari
  • Patent number: 8256478
    Abstract: A pneumatic tire includes at least two types of cap tread rubber layers made from differing rubber compositions disposed in a tread portion. A tan ? at 60° C. of a rubber composition forming the cap tread rubber layer on a vehicle outer side is greater than a tan ? at 60° C. of a rubber composition forming the cap tread rubber layer on a vehicle inner side. A ratio (tan ?H/tan ?L) of a maximum tan ?H to a minimum tan ?L at 60° C. of the tan ? of the rubber compositions forming the at least two types of cap tread rubber layers is from 1.05 to 1.80 . An under tread rubber layer disposed in the tread portion has an average thickness from 0.8 mm to 4.0 mm. A hardness of a rubber composition forming the under tread rubber layer is from 73 to 83. A tan ? at 60° C. of the rubber composition forming the under tread rubber layer is 0.25 or less.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: September 4, 2012
    Assignee: The Yokohama Rubber Co., Ltd
    Inventor: Yasujirou Daisho
  • Patent number: 8235082
    Abstract: A pneumatic tire including bead apex rubbers 8 having a rubber hardness Hs1 of 80 to 95 and extending radially outward from bead cores 5, and clinch rubbers 9 having a rubber hardness Hs2 of 65 to 85 lower than the rubber hardness Hs1 and forming outer surfaces of bead portions. A carcass 6 is formed of an inner carcass ply 6A comprising a body portion 11 extending between bead cores 5, 5 and turnup portions 12 which are continuous with the body portion 11 and are turned up around the bead cores 5, and an outer carcass ply 6B comprising a body portion 13 which extends along the outer surface of the body portion 11, and the radially inner ends of which are sandwiched between the body portion 11 and the bead apex rubbers 8 to terminate there. The turnup height Lc of the turnup portion 12 from the bead base line BL is 60% or less of the tire section height L, and the height Ld of inner ends of the body portion 13 is 60% or less of the height L1 of the bead apex rubber 8.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: August 7, 2012
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Yasuaki Kuniyasu
  • Patent number: 8220512
    Abstract: A tire with two beads (11) and a radial carcass reinforcement (12) anchored in each bead by an upturn (15) which forms at least one loop around a circumferential bead reinforcement (13), said upturn—when viewed in meridian section—beginning at a point of origin (A1) that corresponds to the point of intersection between the carcass reinforcement and a line (D) perpendicular to the tire's rotation axis and passing through the radially innermost point (A) of the circumferential bead reinforcement (13). A feature of the tire is that when viewed in meridian section, the end (F) of the upturn (15) is located between said upturn (15) of the carcass reinforcement and the circumferential bead reinforcement (13).
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: July 17, 2012
    Assignee: Michelin Recherche et Technique S.A.
    Inventor: Olivier Ferlin
  • Patent number: 8215356
    Abstract: A tire and method of building a tire is described wherein the tire has a carcass having a pair of sidewall plies and a bridge ply, each ply being reinforced with cords, the sidewall plies each having a first end which is received between the bridge ply and a belt reinforcing structure; wherein each sidewall ply extends axially outward along the sidewall and extending radially inwardly to the bead core and folded from a position axially outside the bead core to a position axially inside and around the bead core to an axially inner turnup end; said bridge ply having ends which overlap with a respective inner turnup end of said sidewall ply.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: July 10, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Keith Carl Trares, Joseph Kevin Hubbell, Robert Allen Losey, Robert Anthony Neubauer
  • Patent number: 8118073
    Abstract: 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.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: February 21, 2012
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Jie Jin, Richard Wright
  • Patent number: 8056596
    Abstract: A tire carcass to be used with any type of tire is shown herein. A tire carcass includes a first ply portion, a second ply portion, each ply portion having an inner sidewall ply, an outer sidewall ply, a first end, a second end, and a bead core, a bridge portion, wherein the first ends of the ply portions are separated by the bridge portion, and at least two bridge plies, wherein the bridge plies span the bridge portion, wherein each of the bridge plies have a first end and a second end.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: November 15, 2011
    Assignee: The Goodyear Tire + Rubber Company, Inc.
    Inventors: Robert Anthony Neubauer, Robert Allen Losey, Keith Carl Trares, Joseph Kevin Hubbell, Ping Zhang, Robert Bernard Nelson, Cynthia Nelson, legal representative
  • Patent number: 8037913
    Abstract: A carcass for a pneumatic tire includes a first annular bead, a second annular bead, a first continuous radial ply, a second continuous radial ply, and a third non-continuous radial ply. The first radial ply has two shoulder portions and two lateral edge portions. One lateral edge portion of the first ply extends from one shoulder portion of the first ply radially inward to a location proximal to the first annular bead. The other lateral edge portion of the first ply extends from the other shoulder portion of the first ply radially inward to a location proximal to the second annular bead. The second continuous radial ply has two shoulder portions and two lateral edge portions. One lateral edge portion of the second ply extends from one shoulder portion of the second ply radially inward to a location proximal to the first annular bead. The other lateral edge portion of the second ply extends from the other shoulder portion of the second ply radially inward to a location proximal to the second annular bead.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: October 18, 2011
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: James Kenneth Niedermier, Michael Thomas Driscoll, Timothy Michael Rooney, Robert Anthony Neubauer, Robert Allen Losey
  • Patent number: 8025084
    Abstract: A pneumatic radial tire has a nominal section width of 255 mm or more, and an outer diameter of 720 mm or more. At least one carcass layer is constructed between paired right and left bead cores with the two end portions of the carcass layer being folded back from the inside to the outside of the tire around the respective bead cores in a way that their corresponding bead fillers are enclosed in the two folded end portions thereof. The length of each bead filler in the radial direction of the tire is 5% to 20% of the section height of the tire. The carcass layer is formed of organic fiber cords each made of at least one type of organic fiber which has an expansion ratio of 1% to 5% when a load of 2.0 cN/dtex is applied to the organic fiber. A sheet-shaped rubber reinforcement layer with a thickness of 0.5 mm to 2 mm, whose rubber has a larger rigidity than that of the sidewall section, is interposed between the carcass layer and a sidewall section on each side of the tire.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: September 27, 2011
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Hiroyuki Kojima
  • Publication number: 20110114240
    Abstract: A pneumatic radial 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 at least one 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, each bead portion having a bead core, and a reinforcement cavity outward of each bead core, the cavity located between the main portion and one turnup portion of the at least one reinforcing ply, the tire characterized by: the tread comprising a radially outer tread cap and a radially inner tread base radially underneath the tread cap, the tread base comprising a rubber composition comprising from 15 to 45 phr of styrene-butadiene rubber; from 20 to 50 phr of polybutadiene; and from 10 to 35 phr of natural or synthetic polyisoprene, and from 35 to 65 ph
    Type: Application
    Filed: November 18, 2009
    Publication date: May 19, 2011
    Inventors: Michael Stefan Skurich, Lisa Marie Missik-Gaffney, David Ray Hubbell, Teresa Diane Martter, George Frank Balogh, Arthur Allen Goldstein
  • Patent number: 7900671
    Abstract: A runflat tire having an improved runflat durability and including sidewall-reinforcing rubber layer 10 having a crescent-shaped cross section disposed axially inward of carcass 6 in sidewall portion 3, wherein the carcass 6 comprises at least one carcass ply 6A in which carcass cords made of an aramid fiber or a polyethylene naphthalate fiber are arranged at an angle of 70 to 90° with respect to the circumferential direction and are covered with a topping rubber.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: March 8, 2011
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Shinichi Miyazaki
  • Publication number: 20110011509
    Abstract: A tire comprising at least one carcass-type reinforcing structure and comprising a crown reinforcing structure having at least one working layer.
    Type: Application
    Filed: December 15, 2008
    Publication date: January 20, 2011
    Applicants: Societe De Technologie Michelin, Michelin Recherche et Techique S.A.
    Inventors: Luc Bestgen, Alain Valle
  • Patent number: 7819157
    Abstract: A tire comprising sidewalls joining a crown part to beads that are intended to come into contact with a mounting rim, these sidewalls comprising a carcass reinforcement anchored in each bead to at least one bead wire and having an end in each bead, the bead wire having, seen in meridian cross-section, an outer profile comprising two profile parts, a first part radially to the inside of axial width L, extending between an axially innermost point and an axially outermost part, and a second part radially to the outside between said points. Each bead comprises at least one additional coupling reinforcement in contact with the carcass reinforcement.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: October 26, 2010
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Olivier Ferlin, Bopha Grisin
  • Patent number: 7740038
    Abstract: A tire 2 comprises a tread 4, a sidewall 6, a bead 8, a carcass 10 and a belt 12. The belt 12 includes a belt ply 26. The belt ply 26 is formed by a ribbon 28 wound spirally in a circumferential direction of the tire 2. The carcass 10 includes a first carcass ply 22 and a second carcass ply 24 provided on an outside in a radial direction of the first carcass ply 22. The first carcass ply 22 is turned up around the bead 8. The first carcass ply 22 includes a turned-up portion 34 extended almost outward in the radial direction and a turned-up end 36 positioned on an outside in the radial direction of the turned-up portion 34. The turned-up end 36 is positioned on an inside of the second carcass ply 24.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: June 22, 2010
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Satoshi Matsunaga
  • Publication number: 20100147437
    Abstract: A pneumatic tire includes: a pair of bead portions including a bead core and a bead filler; a carcass layer having a single-layered structure and extending between the bead portions; and a plurality of belt layers disposed at outer circumference of the carcass layer, wherein the carcass layer is folded around the bead core to enfold the bead filler and to have a folded portion that extends to a position beneath a side edge portion of one of the belt layers, and wherein the pneumatic tire further includes a rubber reinforcing layer made of rubber having JIS hardness in a range from 70 to 100 and having average thickness in a range from 0.5 mm to 3.0 mm, the rubber reinforcing layer being disposed on the folded portion at a side wall portion to extend across a maximum width position Pm of the carcass layer.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 17, 2010
    Applicant: THE YOKOHAMA RUBBER CO., LTD.
    Inventor: Isamu KISHIZOE
  • Patent number: 7677288
    Abstract: Provided is a pneumatic tire securing better driving stability and having enhanced load stability. Carcass plies are configured on respective two plies, and the direction of the cords of the two carcass plies crosses over each other and is set at an angle of 75 to 88° to the tire circumferential direction. A first filler rubber is included in each wound-up portion of the carcass plies, and a cord reinforcement layer is arranged on an outer side of the first filler rubber in the tire width direction. A second filler rubber is arranged on an outer side of each wound-up portion of the carcass plies in the tire width direction. Out of the two carcass plies, the carcass ply located on an outer side of the tire has its wound-up end part overlaping an outer side of a main body portion of the carcass plies.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: March 16, 2010
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Tetsuo Ikegami
  • Patent number: 7669625
    Abstract: A pneumatic radial tire has a carcass and a tread. The carcass has at least one carcass reinforcing ply and opposing bead portions. Each bead portion has a bead core and a bead apex radially. The apexes in each bead portion having the same radial height (HA), as measured from a bead base line (B). The tire has a bead reinforcing ply comprising aramid fiber reinforcing cords located in only one bead portion of the tire, with the bead reinforcing ply being adjacent to the carcass reinforcing ply.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: March 2, 2010
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Marco Joseph Eicher, Edouard Pierre Michel, Xavier Sebastien Benoit Fraipont, Kenneth Jenner Powell
  • Patent number: 7650921
    Abstract: A run-flat tire is provided at its side wall with a side reinforcing rubber layer having a substantially falcate cross section, and a side reinforcing cord layers extending inside and outside along a ply body of a carcass in a radial direction. A radially outer end of the side reinforcing cord layer is sandwiched and terminated between a belt layer and a ply body of the carcass. A radial inner end of the side reinforcing cord layer is terminated in the vicinity of the bead core.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: January 26, 2010
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Masatoshi Tanaka
  • Patent number: 7640958
    Abstract: A pneumatic tire (10) according to the present invention includes a first side reinforcement layer (110) and a second side reinforcement layer (120). The first side reinforcement layer (110) has a plurality of reinforcement cords (110s), and the second side reinforcement layer (120) has a plurality of reinforcement cords (120s) each crossing the reinforcement cords (110s). Additionally, an inclination angle of each of the reinforcement cords (110s) and the reinforcement cords (120s) with respect to a circumferential line extending in a circumferential direction of the pneumatic tire (10) is 5 to 30 degrees. According to the pneumatic tire (10), high speed durability thereof can be further enhanced without reducing wear life of a shoulder portion thereof.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: January 5, 2010
    Assignee: Bridgestone Corporation
    Inventor: Yoshihide Kouno
  • Patent number: 7578328
    Abstract: A heavy duty tire having an improved durability in bead portions and comprising a carcass ply of steel cords, the end portions of which are turned up around bead cores from the axially inside to the axially outside of the tire, and a core protecting rubber having a complex elastic modulus of 50 to 80 Mpa, at least a part of which is located in a core inside region which is located axially inward of the bead core and is sandwiched between the axially inner surface of the bead core and the steel cords of the turnup portion of the carcass ply.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: August 25, 2009
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hideaki Yoshikawa, Kiyoto Maruoka
  • Patent number: 7578329
    Abstract: A tire 2 comprises a tread 4, a sidewall 6, a bead 8, and a carcass 10. The bead 8 includes a core 20 and an apex 22 which extends outward in a radial direction from the core 20. The apex 22 has an outer layer 24 and an inner layer 26 which is located to the inside of the outer layer 24 in the axial direction. A hardness of the outer layer 24 is greater than that of the inner layer 26. A difference of the hardness between the outer layer 24 and the inner layer 26 is 15 or greater and 30 or less. A ratio of a thickness of the inner layer 26 to that of the apex 22 is 40% or greater and 60% or less. A ratio of a height HA in the radial direction of the apex 22 to a height HS in the radial direction from a bead base line to an end of the tread 4 is 40% or greater and 60% or less.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: August 25, 2009
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kiyoshi Funahara
  • Patent number: 7552754
    Abstract: A pneumatic radial tire has at least one carcass reinforcing ply and a pair of opposing bead portions. Each bead portion has a bead core and a bead apex, while the carcass reinforcing ply has a main portion and two turnups, with one turnup extending from each end of the main portion and having a terminal end. In each bead portion, there is a minimum distance DMIN between the carcass main portion and the carcass turnup, as measured perpendicular to the tire equatorial plane EP. The distance DMIN is not less than 50% of the maximum bead core width WB as measured perpendicular to the equatorial plane EP. In each bead portion, radially outward of the minimum distance DMIN, a radially outermost portion of the carcass turnup extends at an angle so the radially outermost portion of the carcass turnup is divergent from the carcass main portion.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: June 30, 2009
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Mingliang Du, Christopher Vincent Neal, Sr., Marc Borowczak, Thomas Sherwood Fleischman, Zhonghe Bo, Nagendra Prasad Venkata Akshantala, Laurent Licht, Jean-Marie Feller, Jean-Bernard Bodeux, Didier Winkin, Felix Maximo Vilchez Macuri
  • Publication number: 20090151843
    Abstract: 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.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 18, 2009
    Inventor: Roel Domingo Villanueva
  • Publication number: 20090126849
    Abstract: A tire for a heavy vehicle, comprising a radial carcass reinforcement surmounted radially by a working crown reinforcement, the carcass reinforcement comprising at least one ply of reinforcing members which is anchored in each of the beads by being wrapped around a bead wire in order to form a ply turn-up. The radially outer end of the ply turn-up is at a distance from the radially outer part of the bead wire of less than 40% of the height of the sidewall, said tire includes at least one complementary ply of radially oriented reinforcing members having compressive and tensile moduli at least 1.5 times lower than those of the carcass reinforcement ply, and said complementary ply is axially adjacent to the ply turn-up of the carcass ply over a distance greater than 15% of the height of the sidewall.
    Type: Application
    Filed: May 16, 2006
    Publication date: May 21, 2009
    Inventor: Pierre Durif
  • Patent number: 7523774
    Abstract: A pneumatic radial ply tire for heavier load conditions having a reduced weight, high durability bead area. The pneumatic tire includes a tire bead and a carcass ply folded about the bead to define a main body portion and a turnup portion. The turnup portion is folded around the bead and located adjacent the main body portion radially outward of the bead. The turnup portion has a turnup height of approximately 35-45% of the total section height. A thin rubber strip associated with the bead is disposed between the main body portion and the turnup portion and has an insert height of approximately 25% of the total section height. The pneumatic tire further includes a chafer having a maximum chafer gauge of not more than approximately 1.5 times the thickness of the tire side wall.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: April 28, 2009
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jean-Claude Lahure, Olivier de Barsy, Xavier Sebastien Benolt Fraipont
  • Patent number: 7503360
    Abstract: A high aspect ratio agricultural pneumatic tire has a carcass including a pair of bead portions each having a bead core and two pair of first and second carcass plies of synthetic cords oriented radially and wrapped from the inside of each bead core around to an axially outer turnup end. The first pair of plies is radially inward and adjacent the second pair of plies between the bead cores and having the turnup ends T1, T1? wrapped about the bead cores and the turnup ends T2, T2? of the second pair of plies. The turnup end of the first pair of plies extends outwardly and radially along the bead filler wherein T1, T1? are located between 60% and 80% of the radial location Y of maximum section width (SW) of the tire and T2, T2? are located between 30% and 50% of Y.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: March 17, 2009
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Kevin Michael Rielly, Thomas Edward McGaffick
  • Patent number: 7493928
    Abstract: A heavy duty tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions each with a bead core therein, the bead core with an aspect ratio (HC1/WC) of from 0.43 to 0.58, and a carcass comprising a carcass ply of cords extending between the bead portions and turned up around a bead core in each bead portion from the inside to outside of the tire so as to form a pair of turnup portions and a main portion therebetween, the turnup portion comprising a turnup main-part extending along an axially inner surface, a radially inner surface and an axially outer surface of the bead core smoothly, and a turnup sub-part extending from the turnup main-part toward the main portion near the radially outer surface of the bead core.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: February 24, 2009
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hideaki Yoshikawa, Kiyoto Maruoka