Physical Structure Of Reinforcing Cords Patents (Class 152/527)
  • Patent number: 10427462
    Abstract: A reinforced product (21) comprises: an elastomer matrix (23), several reinforcing elements (44) embedded in the elastomer matrix (23), the reinforcing elements (44) being arranged side by side in a main direction (X1), Each reinforcing element (44) comprises: several filamentary elements (46), and at least one communal sheath collectively coating the filamentary elements (46) and comprising at least one layer of a thermoplastic polymer composition. The ratio R1=ODO/E of the mean minimum thickness ODO of elastomer present on the back of the sheath to the mean thickness E of the reinforced product (21) is less than or equal to 0.17, the mean minimum thickness of elastomer ODO and mean thickness E of the reinforced product (21) being measured in a direction substantially perpendicular to the main direction (X1).
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: October 1, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Michel Ahouanto, Sandrine Braud, Sebastien Rigo
  • Patent number: 10427459
    Abstract: To reduce noise while suppressing increase in rolling resistance, without affecting the formation of a carcass line, provided is a pneumatic tire 10 comprising an inner liner 17. The thickness of the inner liner 17 at least in part of a side portion 18 is 1.5 mm or more. When the tire 10 is mounted to a rim, and an internal pressure of 250 kPa or more is applied to the tire, in a case where a sectional width SW of the tire is less than 165 mm, a ratio of the sectional width SW to an outer diameter OD of the tire, SW/OD, is 0.26 or less; and in a case where the sectional width SW of the tire is 165 mm or more, the sectional width SW and the outer diameter OD of the tire satisfy a relation expression OD?2.135×SW+282.3.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: October 1, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Isao Kuwayama, Shintaro Hatanaka, Kentaro Kozuki
  • Patent number: 10421320
    Abstract: A pneumatic vehicle tire has a carcass, a belt and a profiled tread. The belt includes four belt plies wherein the third belt ply and the fourth belt ply are working plies. The reinforcement members of the working plies are arranged at an angle to the circumferential direction of 10° to 45° and the reinforcement members of the fourth belt ply at an angle of 10° to 45°. The reinforcement members of the third and fourth belt plies are arranged such that they cross one another. The reinforcement members of the first belt ply are arranged at an angle of 40° to 75° and the reinforcement members of the second belt ply are arranged at an angle of 0° to 5° to the circumferential direction. The reinforcement members of the third belt ply and the reinforcement members of the first belt ply have the same direction of inclination.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: September 24, 2019
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Michal Lacko, Matthias Gehlauf, Fabian Wachmann
  • Patent number: 10391817
    Abstract: A reinforced product (21) comprises: an elastomer matrix (23), several reinforcing elements (44) embedded in the elastomer matrix (23), the reinforcing elements (44) being arranged side by side in a main direction (X1). Each reinforcing element (44) comprises: at least one filamentary element (46) comprising a single monofilament, and at least one sheath coating the filamentary elements (46) and comprising at least one layer of a thermoplastic polymer composition. The ratio R1=ODO/E of the mean minimum thickness ODO of elastomer present on the back of the sheath to the mean thickness E of the reinforced product (21) is less than or equal to 0.17, the mean minimum thickness of elastomer ODO and mean thickness E of the reinforced product (21) being measured in a direction (Y1) substantially perpendicular to the main direction (X1).
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: August 27, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Sebastien Noel, Aurore Lardjane, Sebastien Rigo
  • Patent number: 10377180
    Abstract: The reinforcing element (34) has a cross-section with a flattened overall shape having an aspect ratio greater than or equal to 5 and extending in a main direction (Z1). It comprises a lateral edge (46) made of a polymeric composition comprising a thermoplastic polymer, the lateral edge (46) extending in a general direction substantially parallel to the main direction. The reinforcing element (34) is such that R=(Uc?U1)/Uc>11%, where Uc is the average value of the microhardness of the reinforcing element (34) measured in its central part, and U1 is the average value of the microhardness of the reinforcing element (34) measured at its lateral edge (36). The lateral edge (46) does not have any ridges.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: August 13, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: David Doisneau, Nicole Dajoux, Christophe Le Clerc, Thomas Guy
  • Patent number: 10378129
    Abstract: A dipped and heat-set carbon fiber cord, including a plurality of cord plies having a spacing between the plurality of cord plies. A TASE at 2.0% elongation of the carbon fiber cord is less than 2.0cN/dtex. The spacing between the plurality of cord plies is longer than 15% and shorter than 80% of a cord diameter of the plurality of cord plies.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: August 13, 2019
    Assignee: KORDSA TEKNIK TEKSTIL ANONIM SIRKETI
    Inventors: M. Sadettin Fidan, Kürsat Aksoy, Neslihan Gulbeycan
  • Patent number: 10350947
    Abstract: A pneumatic tire is disclosed having two annular bead portions having a bead core. A carcass extends between the bead portions through sidewall portions and a tread portion, wherein the carcass includes at least two axially inner plies which extend down from the tread and axially inward of the bead core, said at least two axially inner plies being wound around the bead core forming respective turn-ups, each turnup being located axially outward of the bead core. The carcass further includes a first axially outer ply which extends down from the tread towards the bead core and positioned axially outward of the bead core, wherein at least one of the axially outer plies is formed from reinforcements having a higher break strength than the reinforcements of the axially inner plies.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: July 16, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Kiyoshi Ueyoko, Badal Das, Robert John Boehlefeld
  • Patent number: 10328750
    Abstract: Tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements, a first layer C of rubber compound being placed between at least the ends of the said at least two working crown layers, a second layer S of polymer compound being in contact with at least one working crown layer and in contact with the carcass reinforcement and the crown reinforcement comprising at least one layer of circumferential reinforcing elements. The elastic modulus under tension at 10% elongation of the first layer C is less than 8 MPa, the maximum tan(?) value, denoted tan(?)max, of the first layer C is less than 0.100, and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the said second layer S of polymer compound is greater than 1.35 MPa.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: June 25, 2019
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Hichem Rehab, Jean-François Parmentier
  • Patent number: 10266009
    Abstract: Disclosed are a hybrid cord produced by plying and twisting high modulus yarns and polyamide monofilaments, and a tire including the same. More specifically, disclosed is a method of producing a hybrid cord having a clear core-covering structure including a core comprising a polyamide monofilament and a covering spirally twisted around the core and comprising a high modulus yarn. The hybrid cord can clearly control the modulus ratio in each area, improving production efficiency of the cord and processability of the tire and reducing deviations of uniformity and driving performance. In addition, the tire using the hybrid cord reduces tire deformation during driving, thus satisfying both driving performance and comfort.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 23, 2019
    Assignee: HANKOOK TIRE CO., LTD.
    Inventors: Ji Wan Lee, Kil Ju Ko, Sung Tae Kim, Hyun Ran Cho, Il Yong Park
  • Patent number: 10214052
    Abstract: A run-flat tire of the present invention is a pneumatic radial tire for passenger vehicles which has a carcass composed of plies of radially arranged cords toroidally extending between a pair of bead portions, and the a W/L ratio of the section width W to the outer diameter L of the tire is 0.25 or less.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: February 26, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Isao Kuwayama
  • Patent number: 10214053
    Abstract: The invention is directed to a pneumatic vehicle tire having a carcass and a belt built up on the radial outside of the carcass. The tire includes a profiled tread which is built up on the belt on the radial outside of the belt. The belt is formed from at least four belt plies which are arranged one on top of the other from the radial inside to the radial outside. The first belt ply and the second belt ply are crossing working plies. The reinforcing elements of the first and second belt plies are arranged at an angle of 10° to 45° to the circumferential direction. The reinforcing elements of the fourth belt ply are arranged at an angle of 40° to 75° to the circumferential direction and the reinforcing elements of the third belt ply are arranged at an angle of 0° to 5° to the circumferential direction.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: February 26, 2019
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Michal Lacko, Matthias Gehlauf, Fabian Wachmann
  • Patent number: 10207542
    Abstract: An object of the present invention is to adequately control relationship between a cross sectional width SW and an outer diameter OD of a pneumatic radial tire for a passenger vehicle. The tire is further characterized in that, provided that each half portion in the tire width direction of a ground contact surface of the tire is divided in the tire width direction into three equal portions including a tire-width-direction center portion, a tire-width-direction intermediate portion and a tire-width-direction outer portion from the tire-width-direction center side, rigidity in the tire circumferential direction of the belt reinforcing layer in a region in the tire width direction thereof corresponding to the tire-width-direction outer side portion is lower than rigidity in the tire circumferential direction of the belt reinforcing layer in a region in the tire width direction thereof corresponding to the tire-width-direction center portion.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: February 19, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Isao Kuwayama, Hiroyuki Matsumoto, Shintaro Hatanaka
  • Patent number: 10195899
    Abstract: Provided is a pneumatic radial tire for a passenger vehicle, having a carcass constituted of plies as radially-disposed cords and toroidally provided across a pair of bead portions, and including: a belt constituted of one or more belt layers; and a tread, which are disposed in this order on the outside in the radial direction of the carcass, in which: a section width SW and an outer diameter OD of the tire have a ratio of SW/OD?0.26 when SW<165 (mm), and SW and OD satisfy a relationship formula OD?2.035×SW+282.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: February 5, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Shintaro Hatanaka, Hiroyuki Matsumoto, Isao Kuwayama, Jun Watanabe, Shingo Hiura
  • Patent number: 10174808
    Abstract: A V-ribbed belt has a cord made of polyester-based fibers, the total fiber fineness of which is 2200 dtex or more and 5500 dtex or less. A fiber fineness of the cord per belt width corresponding to a single V-shaped rib ranges from 10000 dtex to 19000 dtex. A belt dry-heat shrinkage force per belt width corresponding to a single V-shaped rib is 44 N or more. The belt dry-heat shrinkage force is a load increase with respect to a belt length of 300 mm in 30 minutes after applying, in an atmosphere of 150° C., a load of 6N in the belt longitudinal direction and holding the belt.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: January 8, 2019
    Assignee: Bando Chemical Industries, Ltd.
    Inventor: Yuya Shindo
  • Patent number: 10160600
    Abstract: The present technology provides a conveyor belt. An upper cover rubber and a lower cover rubber are respectively disposed above and below a core layer so as to sandwich the core layer, which core layer is composed of a plurality of steel cords extending side by side in parallel. The outer diameter of the steel cords is not less than 0.35 mm and not greater than 6.0 mm, and the side-by-side pitch P of the steel cords is greater than 0.35 mm and not greater than 7.0 mm. The steel cords are embedded extending in the longitudinal direction of the conveyor belt.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: December 25, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Gang Hou, Ryotaro Suefuji, Atsushi Miyajima
  • Patent number: 10046604
    Abstract: Crown of a radial tire for a heavy civil engineering vehicle comprises a tread, a crown reinforcement radially inside of the tread, and a carcass reinforcement radially inside of the crown reinforcement. The crown reinforcement comprises, radially from the outside towards the inside, a protective reinforcement comprising two protective layers comprising elastic metal reinforcers which are parallel to one another within each layer and crossed from one layer to the next, forming respective angles A1 and A2 with the circumferential direction and a working reinforcement comprising two working layers comprising inelastic metal reinforcers, parallel to one another within each layer and crossed from one layer to the next, forming respective angles B1 and B2 with the circumferential direction. Angle B1 is at least equal to 50° and strictly less than 90° and angle B2 is non-zero and at most equal to 12°.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 14, 2018
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Olivier Sejalon
  • Patent number: 10000090
    Abstract: The present invention provides a pneumatic radial tire for a passenger vehicle, having: a cross sectional width SW and an outer diameter OD controlled under an appropriate SW-OD relationship; and an optimized configuration of a crown portion thereof.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: June 19, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Kohei Hasegawa, Isao Kuwayama
  • Patent number: 9994995
    Abstract: Steel cords have a stranded structure in which a plurality of sheath strands is intertwined around the outer circumferential surface of a core strand. The outer circumferential surface of the core strand is covered by a cushioning material made of nonwoven fabric or a resin film.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: June 12, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Ryotaro Suefuji
  • Patent number: 9925833
    Abstract: An object of the invention is to increase the room for elongation of a tread protection layer, while securing durability. An aircraft pneumatic tire 10 includes: a tread protection layer (12) that is provided at a lower layer of a tread section (22), and that includes plural cords (24) that arrayed in a tire width direction and are each disposed along a wave shaped imaginary line extending along a tire circumferential direction with the tire width direction as the amplitude direction; and cord discontinuity portions (14) where locations of close proximity of the cords (24) to each other are partially omitted in the tread protection layer (12).
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: March 27, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Tomotaka Sakiyama
  • Patent number: 9919563
    Abstract: A radial tire includes a crown reinforcement or belt having a lightened belt structure. The lightened belt structure is constructed of a multilayer composite laminate that includes a first layer of rubber that radially surmounts, in a direction Z, two other layers of rubber. The first layer of rubber includes weakly heat-shrinkable textile circumferential reinforcers, for example, made of nylon or polyester. The two other layers of rubber are reinforced with monofilaments of high tensile steel. The first reinforcers have a diameter between 0.40 mm and 0.70 mm and a density between 70 and 130 threads/dm, and the second and third reinforcers have a diameter between 0.20 mm and 0.50 mm and a density between 120 and 180 threads/dm.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: March 20, 2018
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Aurore Lardjane, Christophe Le Clerc, Jacques Morel-Jean, Arnaud Verleene
  • Patent number: 9895935
    Abstract: A pneumatic tire includes a belt layer, a belt reinforcing layer in which a plurality of reinforcing cords are arranged, four main grooves, and land portions comparted by the four main grooves, wherein in the case that the belt reinforcing layer is partitioned into five areas in a tire width direction by the four main grooves, an arrangement density of the reinforcing cord in the fifth area is higher than that of the reinforcing cord in the first area, and an arrangement density of the reinforcing cord in the second area is higher than that of the reinforcing cord in the fourth area, and wherein protruding portions having protruding heights in proportion to the arrangement densities are provided on ground surfaces of the land portions which are positioned outside in the tire diametrical direction in the areas having the higher density than that of the third area.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: February 20, 2018
    Assignee: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Satoshi Shima
  • Patent number: 9862232
    Abstract: A pneumatic tyre for heavy load vehicle wheels, includes: a carcass structure, a belt structure applied in a radially outer position with respect to the carcass structure, and a tread band. The belt structure includes at least one reinforcing layer incorporating a plurality of reinforcing cords arranged substantially along the circumferential direction. The belt structure further comprises a first main belt layer and a second main belt layer wherein the first main belt layer includes a first plurality of metal cords inclined at a first angle and the second main belt layer includes a second plurality of metal cords inclined at a second angle. The metal cords of the first and second plurality of metal cords have a diameter not greater than 1.30 mm, and include a plurality of filaments having a diameter not greater than 0.30 mm.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: January 9, 2018
    Assignee: PIRELLI TYRE S.P.A.
    Inventors: Alessandro Ascanelli, Alexandre Bregantim, Giuseppe Cereda, Guido Luigi Daghini, Riccardo Pirovano
  • Patent number: 9688100
    Abstract: A tire cord fabric having paired cords used as warps. The fabric is suitable for use in pneumatic tires as carcass and cap ply reinforcement, enabling the use of less rubber and higher cord content in a specified cord-rubber composite volume.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: June 27, 2017
    Assignee: KORDSA GLOBAL ENDÜSTRIYEL IPLIK VE KORD BEZI SANAYI VE TICARET ANONIM SIRKETI
    Inventors: Kursat Aksoy, Sadettin Fidan
  • Patent number: 9643455
    Abstract: Provided is a pneumatic radial tire for aircraft that includes a radial carcass constituting a backbone structure of the tire, a belt (6) disposed along an outer periphery of a crown region of the radial carcass, and at least one protective layer (7) disposed along an outer periphery of the belt (6) and formed by a plurality of cords (9). The cords (9) in the protective layer (7) are curved in a sinusoidal shape and disposed in parallel with equal phase. An acute inclination angle ? between an amplitude center line of each cord (9) relative to a tire circumferential direction, a half amplitude a of each cord (9), and a wavelength ? of each cord (9) satisfy the relationship: tan ?>2?a/?>0.4 (0°<?<90°).
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: May 9, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Daisuke Itami
  • Patent number: 9440406
    Abstract: The present invention relates to a method of forming at least one circumferential belt layer of a pneumatic tire comprising: winding the strip for a half length of an outer circumferential length of the crown portion of the carcass along the tire equatorial plane from a widthwise inner side of the belt end region; winding the strip for the remaining half length while shifting the strip for the width of the strip from a widthwise inner to outer side; winding the strip for the outer circumferential length of the crown portion of the carcass along the tire equatorial plane; winding the strip for the half length of the outer circumferential length of the crown portion of the carcass while shifting the strip for the width of the strip from the widthwise outer to inner side; and winding the strip for the remaining half length along the tire equatorial plane.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: September 13, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Yusuke Yoshikawa, Hiroshi Nakata, Takashi Oono, Makoto Tsuruta
  • Patent number: 9403409
    Abstract: A tire for a motorized two wheeled vehicle comprising a reinforcing structure of the carcass type, made up of reinforcing elements, anchored on each side of the tire to a bead the base of which is intended to be mounted on a rim seat, each bead being extended radially outwards by a sidewall, the sidewalls radially towards the outside joining to a tread. The tread comprises at least one incision and in a circumferential plane, at least part of one wall of the at least one incision forms with the radial direction an angle of between 5 and 45°, and the angle formed between at least one part of one wall of the at least one incision and the radial direction in a first circumferential plane is different from the angle formed between at least one part of one wall of the at least one incision and the radial direction in at least one second circumferential plane.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: August 2, 2016
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Luc Bestgen, Bruno Gras
  • Patent number: 9315325
    Abstract: A belt for a conveyor system generally includes a ribbon of elastomeric material and a plurality of reinforcing cords connected to the ribbon. The ribbon defines a central longitudinal axis and a pair of side edges extending parallel to the longitudinal axis. At least some of the cords have ends positioned between the longitudinal axis and a side edge.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: April 19, 2016
    Assignee: Joy MM Delaware, Inc.
    Inventors: Terry M. Thomas, Brian C. Ziegler
  • Patent number: 9290056
    Abstract: The pneumatic tire 1 includes a belt layer 14 that is formed by laminating a plurality of belt plies 141 to 145 including the circumferential reinforcing layer 145. Also, the belt layer 14 includes at least two belt plies on the outer side in the tire radial direction of the circumferential reinforcing layer 145. Also, the intercord distances T1 to Tk have a relationship such that T1?T2? . . . ?Tk and T1<Tk.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: March 22, 2016
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Takahide Ishizaka, Kouichi Kawabata
  • Patent number: 9288929
    Abstract: A ruggedized canister system having a cylindrical housing and a modular electronic rack system disposed therein. The modular electronic rack system includes a backplane and a plurality of rib members radiating outwardly from the backplane. The rib members extend from the backplane at a proximal end in a direction generally orthogonal to the longitudinal axis of the backplane toward a distal end. An input/output device extends along at least a portion of the backplane and includes a power input and a signal output electrically coupled thereto. A plurality of electronic slots are positioned within a space define by the rib members when viewed in plan view. Each of the electronic slots is configured to physically and operably receive an electronic card. Each of the electronic slots is electrically connected to the input/output device for electrical communication between the electronic card and the input/output device.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: March 15, 2016
    Assignee: Artesyn Embedded Computing, Inc.
    Inventors: Suzanne Marye Wong, Ross L. Armstrong, Martin Peter John Cornes, Douglas L. Sandy
  • Patent number: 9211763
    Abstract: To provide a pneumatic tire wherein the lightweight properties of a tire is secured while improving the plunger energy and BES resistance thereof, which is particularly suitable for tires for a large passenger car or extra load tires. A pneumatic tire comprising a carcass 1 as a skeleton, and at least two belt layers 2a, 2b each formed by rubberizing a plurality of steel cords arranged obliquely with respect to the tire circumferential direction on the outside in the tire radial direction of the crown portion of the carcass is provided. The steel cord is composed of two or more core wires and five to seven sheath wires twisted together around the core wires; the interval between adjacent steel cords in the belt layer is more than 1.0 mm and not more than 1.50 mm; and the gauge of the belt layer is not less than 1.20 mm and not more than 1.60 mm.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: December 15, 2015
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Kouta Kitahara
  • Patent number: 9168787
    Abstract: Provided is a steel cord for reinforcing rubber articles which has both rubber penetration and productivity and which allows to reduce the weight of a tire without compromising the strength of the tire when applied to a tire, and a pneumatic tire using the same. The steel cord for reinforcing rubber articles of the present invention is a steel cord for reinforcing rubber articles comprising a core formed by arranging two core filaments in parallel without twisting the filaments together, and six sheath filaments twisted around the core. Letting the diameter of the core filament dc (mm), the diameter of the sheath filament ds (mm) and sheath filament twist pitch p (mm), an average sheath filament interval D represented by the following Formula (I): D=[L?6ds{1+(L/p)2}1/2]/6??(I), (where L=(?+2)dc+?ds) is from 25 to 80 ?m.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: October 27, 2015
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Yuji Oyama
  • Patent number: 9168788
    Abstract: Proposed is a pneumatic tire having excellent durability, handling stability and uneven wear resistance even if weight reduction is achieved by improving a belt. The pneumatic tire according to the present invention having a carcass layer 5 toroidally extending from a tread portion 3 through a side wall portion 2 to a bead portion 1, and a belt layer 6 disposed at the outer side of the carcass layer 5 in the tire radial direction, in which the carcass layer 5 includes one or more carcass plies 5a, the belt layer 6 includes a first belt 7 having a first cord 7a inclined with respect to a tire equator S at an angle in the range of 15° to 75° and a second belt 8 having a second cord 8a extending in parallel to the tire equator S, said first belt 7 having a tensile strength smaller than that of the second belt 8.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: October 27, 2015
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Eiji Ichihara
  • Patent number: 9156315
    Abstract: A tire comprising an airtight rubber cover (2) and a reinforcing structure essentially formed of a plurality of fibers (30, 40) embedded in the rubber and arranged in layers, this reinforcing structure comprising at least one carcass layer (3) and one crown layer (4). The fibers (30) and (40) of these layers (3, 4) are connected together and oriented, with respect to the median plane (P) of the tire, at respective angles of the order of 90 degrees and 0 degrees, each of these fibers (30, 40) also having a connected cross section of flattened shape.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: October 13, 2015
    Assignees: Michelin Recherche et Technique S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Michel Deal
  • Patent number: 9132703
    Abstract: Pneumatic vehicle tire includes at least two bracing plies arranged to intersect each other at an angle and including reinforcements of steel arranged substantially parallel to and at a distance from one another and embedded in a rubber material. Bracing ply reinforcements are oriented at an angle of 18° to 45° with the circumferential direction of the tire. A bracing bandage is also included having at least one ply with reinforcements of a non-metallic material arranged substantially parallel to and at a distance from one another and generally extending a circumferential direction of the tire. Bracing bandage reinforcements include a material with heat shrinkage properties. Under a predetermined extension of 1% in the longitudinal direction of the reinforcements, each bracing ply, has a tension of <17,500 N per dm of width, and the bracing bandage as a whole has a tension of >2,000 N per dm of width.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: September 15, 2015
    Assignee: CONTINENTAL REIFEN DEUTSCHLAND GMBH
    Inventors: Rafal Nojek, Viktor Bluemel
  • Patent number: 9050857
    Abstract: A cord fabric is structured by weaving a weft yarn into a large number of warp yarn (2) disposed in parallel so that the weft yarn crosses the warp yarn at a coarse density. In the cord fabric, the warp yarn is a composite cord constituted of at least one aramid first twist yarn and one aliphatic polyamide first twist yarn, and the weft yarn is a spun yarn of meta system aramid fiber. The cord fabric is used as a strip material of a belt cover layer which is wound in a spiral pattern around an outer circumference of a belt layer of a pneumatic tire in a radial direction.
    Type: Grant
    Filed: February 4, 2012
    Date of Patent: June 9, 2015
    Assignee: THE YOKOHAMA RUBBER CO., LTD.
    Inventor: Miyuki Nakajima
  • Publication number: 20150136294
    Abstract: A pneumatic tire comprises an overlay wherein the overlay is positioned above the belt plies but beneath the tread, and at least one overlay end is folded and extends inwards toward the center line of the tire.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 21, 2015
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK ALLAN LAMONTIA, DERYA GULSEN ONBILGER, BRIAN R. FRANCE
  • Publication number: 20150136295
    Abstract: A two-layer multistrand metal cord includes an inner cord layer and an outer cord layer. The inner cord layer is formed of K>1 inner strands, which are wound in a helix. The outer cord layer is unsaturated and formed of L>1 outer strands, which are wound in a helix around the inner cord layer. Each strand of the inner cord layer and the outer cord layer includes an inner strand layer and an outer strand layer. The inner strand layer is formed of two inner wires. The outer strand layer is formed of N outer wires, which are wound in a helix around the inner strand layer.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 21, 2015
    Applicants: COMPAGNE GENERALE DES ETABLISSEMENTSMICHELIN, Michelin Recherche et Technique S.A.
    Inventors: Henri Barguet, Emmanuel Clement, Thibault Rapenne, Thibaud Pottier
  • Publication number: 20150114534
    Abstract: Tire having at least one carcass reinforcement, a tread, a belt reinforcer having a first and a second end and: a reinforcing ply, having a transverse half-width L2, having a reinforcing polymer layer between two layers of coating rubber, at least one hooping ply, surmounting the reinforcing ply, having a transverse half-width L1, and filamentary reinforcing elements, parallel two by two, forming an angle at most equal to 7° with respect to the circumferential direction, the tire having at least one layer of edge uncoupling rubber, positioned at least radially between the hooping ply and the reinforcing ply and positioned at at least one transverse end of the belt reinforcer, the layer of edge uncoupling rubber having a total length between 10 and 40 mm and a thickness between 0.2 and 1.2 mm, having at least one reinforcing ply, and at at least one end of the belt reinforcer, the half-widths L1 and L2 are different, and manifest a difference (L1?L2) between 5 and 10 mm.
    Type: Application
    Filed: April 4, 2013
    Publication date: April 30, 2015
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE, S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Jean-Michel Huyghe, JR.
  • Patent number: 9016341
    Abstract: Bicycle tires with at least one reinforcement layer that contains strength supports and that is arranged between carcass and tread rubber and/or between carcass layers below the tread rubber and/or within the tread rubber. For a high resistance to puncturing with low weight, the reinforcement layer contains multifilament threads of more than 30 polyester/polyarylate filaments, and the filaments are spun from molten liquid-crystal polymer.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: April 28, 2015
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Wolfgang Klapp, Wolfgang Bende
  • Patent number: 9004128
    Abstract: Without decreasing the strength in the axial direction of the cord, and without increasing the thickness in the radial direction, a steel cord for reinforcing a rubber article, which improves durability against cut, as well as a construction vehicle tire utilizing the steel cord for reinforcing a rubber article as a reinforcing material is provided. A steel cord for reinforcing a rubber article is formed by twisting a plurality of sheath strands 2 formed by twisting a plurality of wires around a core strand 1 formed by twisting a plurality of wires, wherein the core strand 1 is constituted of a 4-layer-twisted structure and the diameter of the steel cord is 5 mm or larger.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: April 14, 2015
    Assignee: Bridgestone Corporation
    Inventor: Keisuke Nakamura
  • Publication number: 20150059954
    Abstract: A pneumatic tire includes a pair of axially spaced apart annular bead structures, a carcass structure wrapped around each bead structure and having a pair of carcass turnups substantially contiguous with the carcass structure from the bead structure to radially outer ends of the pair of carcass turnups, a belt structure disposed radially outward of the carcass structure in a crown area of the pneumatic tire, an overlay structure disposed radially outward of the belt structure, and a component comprising a non-adhesive core structure and a coating applied to the core structure with the coating providing adhesion to a surrounding matrix for the core structure.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 5, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Robert Edward Lionetti, Olivier Marcel Eugene Durand, John Woods, Raphael Beck
  • Patent number: 8960252
    Abstract: A passenger vehicle tire, the crown reinforcement of which has three distinct elements, the three distinct elements comprising: a radial carcass reinforcement formed of reinforcing elements connecting the two beads of the tire, a crown belt comprising reinforcing elements parallel to the circumferential direction of the tire, and a crown triangulation layer comprising reinforcing elements making an angle of between 10 degrees and 80 degrees with the circumferential direction of the tire, the reinforcing elements of the triangulation layer having a flattened cross section.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: February 24, 2015
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventor: Michel Deal
  • Publication number: 20150020942
    Abstract: This invention pertains to a tire comprising at least one carcass ply and at least one breaker ply, the carcass and breaker plies each comprising continuous filaments having a tenacity of at least 15 grams force per dtex and a modulus of at least 400 grams force per dtex wherein the carcass ply turn-ups terminate under the at least one breaker ply. The invention further pertains to a tire comprising a plurality of apex components and carcass ply turn-ups that terminate within the apex region of the tire. The invention also discloses a tire wherein the carcass ply turn-ups terminate in the upper sidewall region of the tire and ply spacers are located between ply-turn-ups.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 22, 2015
    Applicant: E I Du Pont De Nemours and Company
    Inventors: MARK ALLAN LAMONTIA, William Herbert Coulter, Monty C. McNeil, Harish Viswanathan
  • Publication number: 20150013867
    Abstract: A tire constructed with a plurality of reinforcement belts is provided. At least one of the reinforcement belts extends along the axial width of the tire summit and is constructed according to an equilibrium curve that is flat throughout the summit. The reinforcement belts include cable reinforcements that are substantially parallel to the equatorial plane. Substantial reductions in the tension experienced by the cables can be achieved to provide, as a result, improvements in e.g., tread wear.
    Type: Application
    Filed: January 16, 2012
    Publication date: January 15, 2015
    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: William Bennett Clayton, Daniel McEachern Hicks, Timothy B. Rhyne
  • Publication number: 20150013873
    Abstract: A radial tyre, which is useable for a passenger vehicle or a van, has a crown reinforcement or belt having a lightened belt structure. The lightened belt structure is constructed of a multilayer composite laminate that includes a first layer of rubber that radially surmounts, in a direction Z, two other layers of rubber. The first layer of rubber includes weakly heat-shrinkable textile circumferential reinforcers, for example, made of nylon or polyester. The two other layers of rubber are reinforced with monofilaments of high tensile steel. The multilayer composite laminate allows the tyre's weight and rolling resistance to be reduced without impairing the tyre's cornering stiffness and, therefore, road holding and handling. At the same time, the multilayer composite laminate enables the tyre to have a running endurance that is at least equivalent if not better than that of a conventional tyre.
    Type: Application
    Filed: January 31, 2013
    Publication date: January 15, 2015
    Inventors: Aurore Lardjane, Christophe Le Clerc, Jacques Morel-Jean, Arnaud Verleene
  • Publication number: 20150007922
    Abstract: Radial tyre, notably, for a passenger vehicle or van, with a lightened belt structure (10) comprising a multilayer composite laminate (10a, 10b, 10c) of specific construction with a first layer (10a) of rubber (C1) comprising heat-shrinkable textile circumferential reinforcers (110) made of polyester, for example PET or PEN, this first layer radially (in the direction Z) surmounting two other layers (10b, 10c) of rubber (C2, C3 respectively) reinforced with monofilaments (120, 130) of high tensile steel; this multilayer composite laminate allows the weight and rolling resistance of the tyres to be reduced without impairing the cornering stiffness and, therefore, road holding and handling, while at the same time offering running endurance that is at least equivalent if not better.
    Type: Application
    Filed: January 31, 2013
    Publication date: January 8, 2015
    Inventors: Aurore Lardjane, Christophe Le Clerc, Jacques Morel-Jean, Arnaud Verleene
  • Publication number: 20150000816
    Abstract: A tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, the said tire comprising 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 textile threads exhibiting, in the “permeability” test, a flow rate of between 1 and 3 cm3/min.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 1, 2015
    Inventors: Charlotte Caffeau, Sébastien Noel, Bernard Jault
  • Publication number: 20140373992
    Abstract: The pneumatic tire 1 includes a belt layer 14 that is formed by laminating a plurality of belt plies 141 to 145 including the circumferential reinforcing layer 145. Also, the belt layer 14 includes at least two belt plies on the outer side in the tire radial direction of the circumferential reinforcing layer 145. Also, the intercord distances T1 to Tk have a relationship such that T1<T2? . . . ?Tk and T1<Tk.
    Type: Application
    Filed: September 2, 2011
    Publication date: December 25, 2014
    Applicant: The Yokohama Rubber Co., LTD.
    Inventors: Takahide Ishizaka, Kouichi Kawabata
  • Publication number: 20140374009
    Abstract: A method forms an adhesion joint between a cord and a rubber matrix. The method includes the steps of: providing a cord having an initial relatively smooth surface; texturing the smooth surface such that the resulting surface is rougher than the initial surface of the cord; depositing a uniform polymer coating on to the textured surface of the cord by plasma polymerization of an organic precursor and an air plasma; and inserting the cord into a rubber matrix such that the resulting surface provides enhanced adhesion to the rubber matrix compared to the adhesion of the initial surface to the rubber matrix or adhesion of the textured surface to rubber matrix.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 25, 2014
    Inventors: Samy Laroussi Mzabi, Frederic Gerard Auguste Siffer, Gilles Joseph Henri Bertemes, Claude Ernest Felix Boes, James Gregory Gillick
  • Publication number: 20140373993
    Abstract: Provided is a pneumatic tire having excellent durability and driving stability during high-speed running of the vehicle (that is, during high-speed rotation of the tire). The pneumatic tire includes: a carcass; an intersecting belt which is provided on the outer circumference side of a crown portion of the carcass and formed of two inclined belt layers having cords inclined and extending in a direction intersecting each other across a tire equatorial plane; and a circumferential belt layer which is provided on either one of the inner side and the outer side of the intersecting belt in the tire radial direction and includes a spiral cord arranged as being spirally wound at an inclination angle of equal to or smaller than 5 degrees to the tire equatorial plane.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Eiji ICHIHARA