Structure Of Inextensible Reinforcing Member Patents (Class 152/540)
  • Patent number: 11400768
    Abstract: A pneumatic tire mountable on a 15° tapered specified rim, the pneumatic tire including a bead portion, bead core, a carcass, a steel cord reinforcing layer, and a bead rubber layer. A distance from a second line segment to a third line segment is from 4 mm to 8 mm, and a ratio R2/R1 is from 0.935 to 0.975, wherein R2 is a tire radius at a bead toe of a bead base portion and R1 is a tire radius at a bead heel.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 2, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Takayuki Suzuki
  • Patent number: 11364750
    Abstract: A pneumatic tire is provided. In a meridian cross-section, an external contour shape of the bead core is a polygon formed by common tangent lines of a plurality of circumferential portions of a bead wire, the external contour shape includes a single vertex located toward the outside in a tire radial direction, an internal angle formed by two sides sandwiching the vertex is an acute angle, a bottom side of the external contour shape is inclined with respect to the tire lateral direction by from 2° to 9°, and the carcass layer is bent and folded back along a circumference of the bead core in a bead portion, a folded back portion of the carcass layer from a position of an outer end of the bead core in the tire radial direction extends toward a sidewall portion in contact with a body portion.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 21, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Ryohei Takemori, Masaaki Nagayasu, Yuki Sasaya, Atsushi Tanno, Hiraku Kouda, Jun Matsuda
  • Patent number: 11334784
    Abstract: A tire including a bead core; bead filler; upper ply; reinforcement ply which is provided to overlap a tire-radial direction inside portion of the upper ply; and down ply which overlaps a turnup part of the upper ply and reinforcement ply, and extends from an outer side in the tire-radial direction to an inner side in the tire-radial direction so as to encompass the bead core and bead filler together with the upper ply, in which an electronic component is embedded in a region of substantially triangular shape in a cross section surrounded by the turnup part of the upper ply, down ply and an end part of the reinforcement ply.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: May 17, 2022
    Assignee: Toyo Tire Corporation
    Inventor: Harunobu Suita
  • Patent number: 11312190
    Abstract: This pneumatic tire includes bead cores formed by winding a bead wire. In a cross-sectional view of the bead core, the bead core has a wire array structure of a hexagon formed by winding the bead wires in a close-packed manner. The hexagon is a projecting hexagon with an obtuse internal angle at every vertex. A layer number M of wire cross sections in a Y-axis direction and a maximum value N_max of an array number N of the wire cross sections in an X-axis direction satisfy 0.75?M/N_max?1.30. A distance A in a lateral direction from a vertex of the hexagon on the innermost side in the lateral direction to the centroid of the hexagon, and a distance B in the lateral direction from a vertex of the hexagon on the outermost side in the lateral direction to the centroid of the hexagon, satisfy 1.05?B/A.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: April 26, 2022
    Inventor: Koji Nishio
  • Patent number: 11241921
    Abstract: In a pneumatic tire on a rim with 5° taper, a bead core includes a bead core bottom inclined 0° to 5° with respect to a rotation axis in a direction in which the bead core bottom extends outward in a radial direction from an inner side toward an outer side in the lateral direction, a bead portion includes a bead base portion inclined 8° to 12° with respect to the rotation axis in a direction in which the bead base portion extends outward in the radial direction from the inner side toward the outer side in the lateral direction. A bead width BW is a distance between tire inner and outer surfaces on a straight line through a bead core center in the meridian cross-section and parallel to the bead base portion. The bead core has a maximum width CW within a range of (BW×0.54)?CW?(BW×0.58).
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 8, 2022
    Inventor: Risa Tauchi
  • Patent number: 11077723
    Abstract: A pneumatic tire 1 comprises an annular bead core 5 embedded in each bead portion 4 of the tire. The bead core 5 is composed of a plurality of wire rings 10 each of which is made of a spirally overlap-wound bead wire 11 and which are arranged in the tire axial direction. The wire rings 11 include a first ring 13 whose bead wire 11 is a twisted cord 13a made of a plurality of filaments 15 twisted together, and a second ring 14 whose bead wire 11 is a monofilament cord 14a made of a single filament.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: August 3, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Haruyuki Sano
  • Patent number: 11059332
    Abstract: A foldable tire includes a tire main body provided at two edges thereof with two tire beads respectively. A plurality of rings are disposed in each of the tire beads. Each of the rings has a reinforcing core, which includes a plurality of flexible steel filaments helically entwined with each other and has a diameter ranging from 0.2 millimeters to 0.5 millimeters, and a cladding layer clothing the reinforcing core, so that the reinforcing cores located in each of the tire beads are separated from each other.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: July 13, 2021
    Assignee: INNOVA RUBBER CO., LTD.
    Inventor: Hsi-Ming Hsieh
  • Patent number: 11046124
    Abstract: The various embodiments relate to pneumatic tires including a changing radius of curvature along a body ply that defines a tapering point of a bead assembly. The tires further include a reinforcement band and a body ply with a turn-up end. Various embodiments further relate to a bead assembly that tapers to a width at about 20 mm to 30 mm from the bottom of the bead assembly, such that the ratio of the tapered width to the width of the bead assembly at the widest point of the bead bundle is from about 0.3 to about 0.5. The bead assembly includes a first and a second bead filler where the volume of the first bead filler is from about 32% to about 44% of the bead filler.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: June 29, 2021
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventor: Tanya L. Miracle
  • Patent number: 11034193
    Abstract: Disclosed is a pneumatic tire with a bead having enhanced endurance, more particularly, a pneumatic tire with a bead having enhanced stiffness in which at least one bead core is provided and a carcass does not have a turn-up structure at an end thereof such that stiffness of the bead and sidewall is enhanced. The pneumatic tire includes bead cores in which multi-layered bead wire cords are coiled, bead fillers adhering to the bead cores having at least two rows, and a carcass ply disposed between the bead cores of the bead fillers, the carcass ply having a linear shape without a turn-up structure, wherein a left bead filler and a right bead filler including the bead cores including the bead wire cords are disposed at both sides of the carcass ply, and each of the left and right bead fillers has a diameter decreasing upward from a bead base.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: June 15, 2021
    Assignee: HANKOOK TIRE CO., LTD.
    Inventors: Gui Jung Sohn, Hun Cheol Shin
  • Patent number: 10953690
    Abstract: Adapter for rolling assembly comprising tire and rim to provide the connection therebetween. The adapter has axially inner end with inner reinforcing element, axially outer end with outer reinforcing element, and a body. The outer reinforcing element, axially outside of bearing face (21), is a bead wire made of three layers (23, 24, 25) of metal threads and concentric. First layer (23) includes metal thread of diameter D1, 0.8?D1?5 mm, second layer (24) has metal thread of diameter D2, D2?1.4×D1, and wound in a helix at angle A2, 2°?A2?10°, and third layer (25) has metal thread of diameter D3 and wound in a helix around second layer (24) at angle A3, 2°?A3?10°, and of opposite sign to A2.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: March 23, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Henri Barguet, Arthur Topin, Michel Ahouanto
  • Patent number: 10821784
    Abstract: A pneumatic tyre comprises a tread portion, a pair of opposing sidewall portions and a pair of opposing bead portions, the tread portion extending radially outwards from the sidewall portions and the sidewall portions extending radially outwards from the bead portions, wherein each bead portion comprises an axially inward side and an axially outward side which are joined at a base of the bead portion and each axially outward side of the bead portion comprises a concave region extending axially inwards. Each concave region further comprises a convex region located within the concave region which extends axially outwards.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 3, 2020
    Assignee: APOLLO TYRES GLOBAL R&D B.V.
    Inventors: Paulus Bremmer, Antoon Johannes Hendrikus Spreeuweberg
  • Patent number: 10723180
    Abstract: In a tire, in a cross-section of a core of a bead taken at a plane perpendicular to the circumferential direction, two or more rows of wire cross-sections aligned in the axial direction are stacked. When the radially innermost row is a first row and a row immediately outside the innermost row in the radial direction is a second row, the number of the cross-sections of the wire in the first row is less than that in the second row. An inner end of the second row is axially inward of a line drawn from an inner end of the first row and is perpendicular to a direction in which the first row extends. In the cross-section of the core taken at a plane perpendicular to the circumferential direction, an angle between a bottom side of the core and a bead base line is 2° to not greater than 9°.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: July 28, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hiroyuki Tatsumi
  • Patent number: 10661519
    Abstract: A bead core formation apparatus includes a rubber coating device that coats a circumferential surface of a steel wire with rubber, and two cooling rollers around which the rubber-coated wire, which is a steel wire coated with rubber, is wound. The second roller includes a first groove and a second groove around which the rubber-coated wire located at a downstream side of the first groove is wound. The diameter LB of a portion including the second groove is smaller than the diameter LC of a portion including the first groove.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: May 26, 2020
    Assignees: FUJI SEIKO CO., LTD., FUJI SHOJI CO., LTD.
    Inventor: Hidetoshi Shibuya
  • Patent number: 10570282
    Abstract: According to a tire comprising a CFRP comprising a matrix resin and a carbon fiber, in which the matrix resin comprises a resin component comprising 20 to 80% by mass of an epoxy resin and 20 to 80% by mass of a functional group-modified acrylonitrile butadiene copolymer, it is possible to provide a tire which is lightened while maintaining the strength of a tire with a steel cord and/or a bead wire.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: February 25, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yasuo Naito, Shintaro Tomita, Daisuke Kudo
  • Patent number: 10508760
    Abstract: A strip (100) intended for the reinforcement of the wall of high pressure hoses or flexible pipes is presented. The strip (100) comprises multiple wires (102) arranged side-by-side and held together by means of a hardened adhesive (104) originating from a waterborne dispersion. Different embodiments are presented wherein the wires (102) are embedded in the hardened adhesive (104), or wherein only one side of the strip (100) is covered with hardened adhesive (104) or wherein the hardened adhesive (104) is present only between the wires (102) and not on the surfaces (S1, S2) delineating the strip (100). In one preferred embodiment the wires (102) are flattened with the flats being parallel to the surfaces (S1, S2) of the strips (100).
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: December 17, 2019
    Assignee: NV BEKAERT SA
    Inventors: Ben Vandenbroucke, Geert Braekevelt, Nadine Van De Velde, John Segur, Ann Lambrechts
  • Patent number: 10406867
    Abstract: A pneumatic tire that includes a pair of bead cores, a pair of bead fillers connected to the bead cores respectively, a ply which extends between the bead cores; steel chafers disposed outside the ply, and inner nylon chafers disposed outside the steel chafers. The inner nylon chafers extend upward from positions in the vicinity of heels of the bead cores. The pneumatic tire also includes outer nylon chafers are disposed outside the inner nylon chafer.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 10, 2019
    Assignee: TOYO TIRE CORPORATION
    Inventor: Yuji Izuhara
  • Patent number: 10369849
    Abstract: An adapter for a rolling assembly comprising a tire having two beads (B), a rim (J) with two rim seats (7), said adapter connecting one of the beads and the rim. The adapter has an axially inner end (10) comprising inner reinforcer element (16), and an axially outer end (15) comprising outer reinforcer element (15), respectively mounted on a rim seat (7). Body (11) connects said outer end (9) to said inner end (10). Main reinforcement connects said outer reinforcer (15), and said inner reinforcer (16), a substantially cylindrical adapter seat (18) receiving one of said beads (B), an adapter bearing face (21) substantially contained in a plane perpendicular to the rion otataxis. The reinforcer element (15) of the axially outer end (9) is entirely situated axially outside the bearing face (21), and in that the body (11) comprises, opposite the adapter seat (7), an annular seat reinforcer (19).
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: August 6, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Michel Ahouanto, Luc Bestgen, Arthur Topin
  • Patent number: 10293643
    Abstract: A tire (1) has two annular beads, a toroidal body ply (2) which is wound about the two beads (3) to form two turn-ups, and two bead fillers (8). Each bead filler (8) contacts a bead (3) and is at least partly enclosed in a turn-up (4) of the body ply (2), and comprises an elastomer filler strip (9) which is wound about the bead (3) and is interposed between the bead (3) and the body ply (2) and has two opposite ends (10, 11) located on opposite sides of the bead (3) and contacting each other. An outer end (11) of the filler strip (9) of each bead filler (8) is folded into a “U” about the corresponding end of the body ply (2) so as to enclose the end of the body ply (2).
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: May 21, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Marco Toscano
  • Patent number: 10195911
    Abstract: A pneumatic tire 22 includes a pair of beads 30 and a carcass 32 extending on and between both beads 30. Each bead 30 includes a core 48. The core 48 includes: a main body 56 including a cord 60 extending in a circumferential direction; and a stretchable portion 58 formed from a crosslinked rubber. The stretchable portion 58 is located inward of the main body 56 in an axial direction. The stretchable portion 58 has a size with which at least one cross-section of the cord 60 can be included therein in a cross-section of the bead 30. Preferably, in the tire 22, the main body 56 includes a hard unit and a soft unit. The soft unit is located outward of the hard unit in a radial direction. A hard cord of the hard unit stretches more easily than a soft cord of the soft unit.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: February 5, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Chieko Aoki, Toru Fukumoto, Tadao Matsumoto
  • Patent number: 10189317
    Abstract: A pneumatic tire to reduce separation of a carcass ply from inner and outer core pieces (5i, 5o) and improve steering stability. A radially inner end portion of the carcass ply is held between the inner and outer core pieces (5i, 5o) without turning-up around a bead core. The inner and outer core pieces (5i, 5o) are made of helical body of bead cord (10i, 10o) helically winding around a tire axis. In the inner core piece (5i), the final twisting direction of the bead cord (10i) is the same as the winding direction around the tire axis of the bead cord (10i) in side view from axial outward of the tire. In the outer core piece (5o), the final twisting direction of the bead cord (10o) is opposite to the winding direction of the bead cord (10o).
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: January 29, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES LTD.
    Inventor: Kei Kohara
  • Patent number: 10160264
    Abstract: A pneumatic tire includes a strip member which extends in a tire circumferential direction, with both ends thereof reaching each bead portion, and a belt layer disposed in a tread portion on an outer side in the tire radial direction of the strip members. The strip members are divided in the tire width direction, with each of the divided strip members having joints that join in the tire circumferential direction. The relative positions of the joints are disposed at less than 20° in the tire circumferential direction within the region of the maximum width TW in the tire width direction of the belt layer.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 25, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Hiroshi Hata
  • Patent number: 9956829
    Abstract: A pneumatic tire 1 is provided in a bead portion 4 with a bead core 5 formed of a bead wire 20. The bead core 5 has a wound single bead wire structure formed from turns of the single bead wire 20, and has at least three wire layers 10. Each side face of the bead core 5 has a shape such that it is possible to draw a common tangent 30 to at least two turns of the bead wire 20 appearing in the side face 51 which common tangent is substantially parallel with the tire radial direction. The turns of the bead wire 21 in the 1st wire layer 11 are alternated with the turns of the bead wire 22 in the 2nd wire layer 12 disposed on the outside of the 1st wire layer 11. The 1st wire layer 11 includes a turn 21 having the winding-start end 16 of the bead wire, which turn 21 is positioned between adjacent two turns 22 of the bead wire in the 2nd wire layer 12.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 1, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masayuki Sakamoto, Kenji Ueda
  • Patent number: 9895934
    Abstract: In a pneumatic tire that includes strip members which extends in a tire circumferential direction, both ends thereof reaching each bead portion, a belt layer is disposed in a tread portion on an outer side in a tire radial direction of the strip members. The strip members are divided in the tire width direction, and the divided strip members have joints that join together in the tire circumferential direction. Relative positions of the joints are disposed deviated by not less than 20° in the tire circumferential direction within a region between an edge of a maximum width in the tire width direction of the belt layer and a maximum tire width position.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 20, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Hiroshi Hata, Yuji Sato
  • Patent number: 9776460
    Abstract: Provided is a pneumatic tire having laminated reinforcement layers with organic fiber over a polygonal cross-section bead core, and in the layer, a rubber-coated organic fiber cord is tilted to the center line of the bead core in a transverse section and is spirally coiled, in which each organic fiber cord in an inner and outer adjacent reinforcement layers over the bead core extends such that an organic fiber cord in the inner reinforcement layer and an organic fiber cord in the outer reinforcement layer intersect each other relative to the center line of the bead core in the transverse section, in which in the inner reinforcement layer, the cord is coiled with space at least partially in a tire circumferential direction such that the cord does not overlap in the tire circumferential direction, and the outer reinforcement layer is arranged to cover at least a part of the space.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: October 3, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keiichi Mita
  • Publication number: 20150144272
    Abstract: A collapsible tire for a passenger vehicle, comprising at least one carcass reinforcement optionally associated with an inextensible crown reinforcement, itself radially on the inside of a tread, two beads and two sidewalls, said beads comprising at least one inextensible circumferential reinforcing element called a bead wire, said bead wire defining, when free of any stress, a mean line forming a substantially circular closed curve in a circumferential plane, wherein the invention is characterized in that the bead wire of each bead is flexible, wherein after the tire has been collapsed, the mean line of the bead wire simultaneously defines a first curvature, and a second curvature, the first and second curvatures being connected together by a third connecting curvature, the projection of said first, second and third curvatures of the collapsed tire onto an axial plane defining the two-dimensional envelope by way of a total perimeter P of less than or equal to [3x(2H+A)], H being the height of the sidewall an
    Type: Application
    Filed: May 15, 2013
    Publication date: May 28, 2015
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE, S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Luc Bestgen, JR., Florian Vilcot
  • Patent number: 8967214
    Abstract: A wind-up side cord of a chafer is arranged in such a manner that an angle of inclination of a first line connecting a first point and a second point with respect to a tire circumferential direction is 20 to 40 degrees, and is formed as a circular arc shape which is convex to an outer side in the tire radial direction, a turn-up side cord of the chafer is arranged in such a manner that an angle of inclination of a second line connecting a third point and a fourth point with respect to the tire circumferential direction is 30 to 50 degrees, and is equal to or less than 5 degrees in a change of the angle of inclination with respect to the tire circumferential direction, and a distance in the tire circumferential direction from a fifth point to the first line is 2 to 12 mm.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: March 3, 2015
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Norihiko Kodama
  • Publication number: 20150053326
    Abstract: The present invention has an object of providing a pneumatic tire that exhibits better uniformity by improving the wire wound body for constituting the bead core. The pneumatic tire 1 comprises a bead core 5 comprising a wire wound body 10 in which one bead wire 10a is spirally wound in a continuous around a tire rotational axis CL so that a plurality of layers of the bead wire are formed in a radial direction of the tire. The wire wound body 10 comprises a first part 13 and a second part 14. The first part 13 comprises a plurality of layers of the bead wire 10a each circumferentially extending with a constant radius from the tire rotational axis CL. The second part comprises a plurality of layers of the bead wire 10a each circumferentially extending while changing its radius from the tire rotational axis CL.
    Type: Application
    Filed: November 22, 2012
    Publication date: February 26, 2015
    Inventors: Naoki Sugiyama, Tomoharu Torii
  • Publication number: 20150027610
    Abstract: A pneumatic tire for a cycle wheel comprising a casing and two beads positioned on respective ones of lateral sides of the casing, the pneumatic tire having the shape of an open torus and defining an inner volume, at least one of the two beads having a shoulder projecting outward of the portion of the casing adjacent thereto, and a support positioned along a radial plane at a second end of the bead, the shoulder being positioned along a radial plane at a first end of the bead and comprising, on its outer surface, a first support surface and an edge, the first support surface being positioned between the edge and the casing, and the support surface being set back with respect to the edge. In a radial plane, the normal direction of the first support surface is substantially tangent to the casing, the support comprising a second support surface positioned on the inner side.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventor: Jean-Pierre MERCAT
  • 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: 8826956
    Abstract: A pneumatic tire having a pair of bead portions; bead cores each having a polygonal cross section; a radial carcass having respective ends wound around the corresponding bead cores from the inner to outer side; one layer of wire chafer disposed outwardly of the radial carcass relative to the bead core; and a rubber chafer in a contact area between the bead portion and a prescribed rim, wherein, in a cross section of the tire assembled with the prescribed rim, the angle between the bottom side of the bead core and a bead seat of the prescribed rim is in the range of 0±2°, and a portion, on the tire outer surface side, of an outermost layer filament of steel cords constituting the wire chafer extends at an angle in the range of 90±5° relative to the extending direction of ply cords of the radial carcass.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: September 9, 2014
    Assignee: Bridgestone Corporation
    Inventor: Akira Sasaki
  • Patent number: 8813804
    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 innermost 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), wherein the axially outside end point (166) of said stiffening reinforcement
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: August 26, 2014
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Philippe Johnson, Bopha Grisin, Olivier Lenepveu
  • Patent number: 8647450
    Abstract: A bead wire has a composition of Mn: 5-35 at % and Al: 5-20 at % and the remainder being Fe and inevitable impurities, in which a steel structure is an austenite single-phase structure, and achieves weight reduction and high ductility without reducing strength.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: February 11, 2014
    Assignee: Bridgestone Corporation
    Inventors: Masami Kikuchi, Yukio Aoike, Takashi Yokoi
  • Patent number: 8622106
    Abstract: A pneumatic tire includes a carcass ply extending from one bead structure to another bead structure. Each bead structure includes a plurality of circumferentially wound metal wires defining a cross-sectional profile of a bead. The profile has a radial height to axial width ratio greater than 1.0 and a bead orientation angle between 30 degrees and 60 degrees.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: January 7, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Peter Johann Cornelius Maus, Nizar Toumni, Herve Marcel Henri Beauguilte
  • Patent number: 8590587
    Abstract: 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.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: November 26, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Hiroshi Fujita
  • Patent number: 8578991
    Abstract: A pneumatic tire has a carcass structure extending through a pair of opposing bead portions and an inner liner located inward of the carcass structure, each bead portion comprising a bead core about which is wrapped the carcass structure and a toeguard. Each bead portion has a bead toe, a bead base, and a bead heel, the bead base extending between the bead toe and the bead heel. The bead heel has a profile corresponding to a sector of an ellipse or approximates a sector of an ellipse by having a dual radius structure. The bead base may have a dual taper configuration. The bead core may be substantially centered in the bead portion, as determined by the material thickness at three locations about the bead core.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: November 12, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael David Kachner, Thulasiram Gobinath, David Louis Winter, Kelly Sue King, Michael Christopher Kulton, John Patrick Roman, Judy Ann Birt, Randall Raymond Brayer, Sr., Robert Allen Losey, Ching-Chih Lee
  • Publication number: 20130146198
    Abstract: A composite wire or thread-based reinforcement is coated with rubber and may be used for reinforcing a finished rubber article, such as a tyre. The reinforcement includes one or more textile or metallic reinforcing wires or threads, and a coating rubber that coats each wire or thread. The coating rubber is formed of a rubber composition that includes at least one diene elastomer, a reinforcing filler, between 10 and 150 phr (parts by weight per hundred parts of elastomer or rubber) of a platy filler, and a crosslinking system. The coating rubber has improved water-barrier properties, thus giving the composite wire or thread-based reinforcement better protection against corrosion or ageing due to penetration of water, for example through tyre tread.
    Type: Application
    Filed: May 17, 2011
    Publication date: June 13, 2013
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Yoonhee Chang, Salvatore Pagano
  • Publication number: 20130146201
    Abstract: The present invention relates to a pneumatic tire having a bead structure provided therein. The bead structure is defined by a homogeneous arrangement of between 3-300 cords. Each cord comprises at least one strand wrapped by at least two strands.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Inventors: Jean-Louis Marie Félicien Thomas, Yann Bernard Duval, François Philippe Depouhon, Andreas Sieber, Mohammed Khiri
  • Patent number: 8448683
    Abstract: A heavy duty pneumatic tire comprises a carcass ply of steel cords turned up around a bead core in each bead portion so as to form a pair of turned up portions and a main portion therebetween. The steel cords of the carcass ply are rubberized with a topping rubber having a hardness Ht1 of from 68 to 90 degrees. The bead core is composed of: a bead core main made of windings of a steel wire; a rubber coating penetrating into the bead core main and having a hardness Hb of from 78 to 90 degrees; and a bead core wrapping layer surrounding the bead core main and composed of at least one ply of parallel organic fiber cords rubberized with a topping rubber having a hardness Ht2 of from 70 to 90 degrees. The fineness of each of the organic fiber cords of the bead core wrapping layer is in a range of from 940 to 4200 dtex. The distances between the organic fiber cords of the bead core wrapping layer is in a range of from 0.3 to 1.4 mm.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: May 28, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kazumi Yamazaki
  • Patent number: 8408261
    Abstract: The present invention provides a pneumatic tire in which a sectional shape of a bead wire and arrangement of the bead wires have been optimized to increase rotational rigidity of the bead core as a whole and suppress pulling-off of a carcass, so that durability of the bead portion can be enhanced.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: April 2, 2013
    Assignee: Bridgestone Corporation
    Inventor: Shinichiro Yamazaki
  • Patent number: 8397771
    Abstract: A pneumatic radial tire includes a carcass, opposing bead portions, a carcass reinforcing ply extending between the bead portions, and opposing bead cores situated within respective opposing bead portions. An annular hollow tube member is situated within a bead portion, the tube member containing within a tube internal passageway a viscous fluid and a plurality of spherical balls within the viscous fluid. The spherical balls are dimensioned and sized to freely move circumferentially about the tube passageway. The balancing bodies operationally reposition within the tube passageway to cancel imbalance effects within a running wheel assembly including the tire. The tube member may be located in a tire apex member or form a tire bead core within the tire bead portion with carcass reinforcing ply endings surrounding the tube member.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: March 19, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: René Bormann
  • Patent number: 8235083
    Abstract: In a tire for vehicle wheels, each of the two annular anchoring structures includes at least two annular reinforcing inserts, each of them being made up of at least one first elongated element and at least two reinforcing elements that are mutually spaced apart and each of which extends in a radial direction and includes at least one second elongated element. An end portion of at least one carcass ply lies between two adjacent annular reinforcing inserts. The second elongated element of at least one of the reinforcing elements is of metal material and delimits an angle included between about 20° and about 70° relative to a radial direction passing through a radially internal point thereof.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: August 7, 2012
    Assignee: Pirelli Tyre S.p.A.
    Inventors: Riccardo Azzaretto, Guido Daghini, Daniele Arosio
  • Publication number: 20120085475
    Abstract: A pneumatic tire includes an axis of rotation, a carcass, a tread disposed radially outward of the carcass, a belt structure disposed radially between the carcass and the tread, and a reinforcing structure providing a buffer for absorbing shear strain. The reinforcing structure includes a layer of a knitted fabric. The layer includes first yarns and second yarns.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Inventors: Annette Lechtenboehmer, David Gilbert Wieczorek, Raphael Beck
  • Patent number: 8151849
    Abstract: A pneumatic tire for mounting on an aircraft wheel has a radial carcass and flipper reinforcement. The tire has a pair of bead cores, at least two or more axially inner plies greater than or equal to, extending between the bead cores, a crown reinforcement radially outward of the plies having a maximum belt width BW, and at least one flipper reinforcement wrapped around each bead core. Each bead core has a radially extending cross sectional length B. Each flipper reinforcement extends along an inner surface of the bead core to the axially inner end located in an area that is between 0.01 BW to 0.25 BW as measured from the belt edge toward a centerline of the tire preferably in the range of 0.05 BW to 0.125 BW and wherein one flipper reinforcement has an axially outer end lower than the top of the bead core.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: April 10, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kiyoshi Ueyoko
  • Publication number: 20120073720
    Abstract: The present invention is based upon the unexpected finding that lignin can be incorporated into wire coat stock composition to improve metal to rubber adhesion. It has been further found that lignin can be used as a replacement in whole or in part for conventional rubber-to-metal adhesion promoters, such as cobalt materials which are conventionally used in wire coat stocks to attain and maintain needed rubber-to-wire adhesion properties. In fact, wire coat stocks that contain lignin provide more that adequate rubber-to-metal adhesion characteristics for typical applications, such as in tires, and maintain needed levels of adhesion over long periods of product service. For instance, high levels of rubber-to-metal adhesion are maintained under harsh conditions, such as exposure to elevated temperatures and high levels of humidity.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Applicant: THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Adel Farhan Halasa, John Joseph Andre Verthe, Annette Lechtenboehmer
  • Publication number: 20120067493
    Abstract: A pneumatic tire construction is described suitable for severe loading conditions. The tire includes a bead portion further having an apex which extends radially outward of the bead core, and a first turn-up pad located adjacent said chafer, and a second turn-up pad located adjacent said first turn-up pad, wherein the first turn-up pad has a G? less than the G? of the second turn-up pad. Alternatively, the first turn-up pad may be located adjacent to the rim flange and the second turn-up pad may be located axially inward of the first pad. The second turn-up pad is preferably thicker and longer than the first turn-up pad.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Inventors: Gayathri Venkataramani, Dale Eugene Wells
  • Publication number: 20120067494
    Abstract: A pneumatic tire construction is described suitable for severe loading conditions. The tire includes a bead portion further having an apex which extends radially outward of the bead core, and a turn-up pad located adjacent said chafer. The turn-up pad has a minimum specified width and a maximum specified width at a Radius R as measured from the bead center. The turn-up pad is formed of a material having a specified G? and G?.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Inventors: Gayathri Venkataramani, Dale Eugene Wells
  • Patent number: 8082964
    Abstract: A vehicle wheel tire includes a carcass structure, at least one annular reinforcing structure, a tread band, and a pair of sidewalls. The carcass structure includes at least one carcass ply, each including a plurality of elongated elements disposed around a cross-section profile of the tire. Each elongated element includes two side portions at mutually-spaced-apart positions and a crown portion that extends between the side portions. The at least one annular reinforcing structure includes at least one bead core. A fraction of the elongated elements is turned up around the at least one bead core. A method of manufacturing the tire includes preparing the elongated elements, disposing each elongated element on a toroidal support, applying at least one bead core at a region close to side portions of the elongated elements, and turning up ends of a fraction of the elongated elements around the at least one bead core.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: December 27, 2011
    Assignee: Pirelli Pneumatici S.p.A.
    Inventors: Rodolfo Noto, Gaetano Lo Presti, Ignazio De Gese, Claudio Lacagnina
  • Patent number: 8061401
    Abstract: Heavy goods vehicle tire comprising a radial carcass reinforcement (10) anchored in each of the beads to an anchoring structure (20), this carcass reinforcement (10) being partially wound around an anchoring structure (20), passing from the inside of the tire towards the outside, a first connecting reinforcement (30) partially in contact with the carcass reinforcement (10) and wound around the anchoring structure (20), a second connecting reinforcement (40) formed of a plurality of reinforcing members directed in a mean direction that makes an angle of 50 degrees at most with the circumferential direction and envelopes the first connecting reinforcement (30) to form an internal portion (41) and an external portion (42), the internal portion (41) being in contact over a length V1 with the carcass reinforcement between a first end point D1 of the said first portion and the end point P1 of the first connecting reinforcement (30), the external portion (42) being in contact with the carcass reinforcement from a po
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: November 22, 2011
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Bopha Grisin, Phillppe Johnson, Olivier Lenepveu
  • Publication number: 20110253282
    Abstract: A pneumatic tire having pairs of shoulder section and bead section shear layers positioned on at least one axial side of the carcass layer. Examples include one or more of the shear layers constituted of an elastomer composition having a modulus of elongation at 10% (MA1O) of no greater than 110% of the lowest MA1O of all elastomer compositions constituting the sidewall components that are positioned outward of an axially-inward side of the carcass layer and/or constituted of a short-fiber reinforced elastomer composition having an MA1O of between 25 MPa and 100 MPa and/or the bead section shear layers constituted of an elastomer composition having an MA1O of no greater than 110% of the highest MA1O of all elastomer compositions constituting the sidewall bead section components. Exemplary shoulder section and bead section shear layers in a pinch shocked region are opposite across an interior of the tire.
    Type: Application
    Filed: December 22, 2008
    Publication date: October 20, 2011
    Inventors: Benjamin I. Kaplan, Fanny Hosdez, Sèbastien Rigo
  • Publication number: 20110253283
    Abstract: A pneumatic tire having pairs of shoulder section and bead section shear layers positioned on at least one axial side of the carcass layer. Examples include one or more of the shear layers constituted of an elastomeric fabric having elastomeric fibers woven in the fabric. Such fibers may be spandex fibers and the fabric may further be characterized as being woven additionally with nylon fibers in a tricot construction. Other embodiments include at least one of the shear layers constituted of a polyurethane type elastomer material having an MA1O of between 1 MPa and 350 MPa. Exemplary shoulder section and bead section shear layers in a pinch shocked region are opposite across an interior of the tire.
    Type: Application
    Filed: March 6, 2009
    Publication date: October 20, 2011
    Inventors: Benjamin I. Kaplan, Fanny Hospez