Bead Characterized By The Radial Extent Of Apex, Flipper Or Chafer Into Tire Sidewall Patents (Class 152/546)
  • Patent number: 11142027
    Abstract: A pneumatic tire 1 comprises a carcass 6 comprising a carcass ply (6A) comprising a main body portion (6a) and turned up portions (6b), and bead apex rubbers 8. Each of the bead apex rubbers 8 comprises a first rubber portion 10 and a second rubber portion 11 provided on an outer side in a tire axial direction of the first rubber portion and having smaller rubber hardness than the first rubber portion. A ratio H1/H2 of a height (H1) of an outer end (10e) in a tire radial direction of the first rubber portion 10 from a bead base line (BL) and a height (H2) of an outer end in the tire radial direction of each of the turned up portions (6b) from the bead base line (BL) is in a range of from 1.4 to 1.7.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 12, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hana Sato
  • Patent number: 10099516
    Abstract: A pneumatic radial tire includes a bead filler, a carcass ply, a steel protection layer, and an organic fiber protection layer. A reinforcing rubber sandwiches a wind-up end of the steel protection layer. A relationship of 1?A/B?2 is satisfied between a width A from the wind-up end of the steel protection layer to a tire inner surface, and a width B from the wind-up end of the steel protection layer to a tire outer surface. The wind-up end of the carcass ply is covered with a ply cover member. A relationship of 0.8?D/C?1.2 is satisfied between a thickness C of a second bead filler positioning between the ply cover member and a first bead filler, and a thickness D of the reinforcing rubber positioning between the ply cover member and the steel protection layer.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: October 16, 2018
    Assignee: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Tsunetaka Nakamata
  • Patent number: 9321313
    Abstract: A motorcycle tire includes a tread having shoulder blocks, and sidewalls. Each shoulder block includes a main portion and an end portion. The main portion is formed by a first crosslinked rubber composition. The end portion and the sidewalls are formed by a second crosslinked rubber composition. JIS-A hardness Ha of the main portion is greater than JIS-A hardness Hb of the end portion and the sidewalls. Difference (Ha?Hb) is greater than or equal to 5, and is not greater than 12. A ratio (H2/H1) of a height H2 from a boundary point Pb between the tread and each sidewall to a boundary point P2 between the main portion and the end portion, relative to a height H1 from the boundary point Pb to an outermost end P1 of a corresponding one of the shoulder blocks in the axial direction, is greater than or equal to 1/3.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 26, 2016
    Assignee: SUMITOMO RUBBER INDUSTRIES LTD.
    Inventor: Masahiro Hikita
  • Patent number: 9004121
    Abstract: Tire including a continuous pressure membrane. The tire includes a carcass, a rubber layer surrounding the carcass, and a belt. The carcass includes at least one continuous pressure membrane defining a generally U-shaped cross section. The pressure membrane includes a crown portion, a first sidewall portion, and a second sidewall portion connected with the first sidewall portion by the crown portion. The belt may be composed of at least one additional continuous pressure membrane adjacent the crown portion.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: April 14, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Anthony John Scarpitti, Gary Robert Burg
  • Patent number: 8973637
    Abstract: A pneumatic tire is described having a triangular shaped apex which extends radially outward of the bead core, and wherein the apex is formed of at least two zones. Each zone is formed of a different material, wherein the first zone extends from the base of the apex to the tip of the apex, and the second zone is located adjacent the ply. The zones are preferably formed by extrusion to form one cohesive apex. The first zone is formed of a material having a G?/G? ratio in the range of about 0.155 to about 0.183. The second zone is formed of a material having a G?/G? ratio in the range of about 0.125 to about 0.133.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: March 10, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Philip Carl Van Riper
  • 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: 8960253
    Abstract: A technique for improving the durability of the beads of a radial tire for a heavy vehicle of the civil engineering type, by reducing the rate of spread of cracks initiated at the turned-back end of carcass reinforcement and the spread through the coating, edge-binding and filler polymer materials.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: February 24, 2015
    Assignees: Compagne Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventor: Lucien Bondu
  • 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: 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
  • Patent number: 8887776
    Abstract: A pneumatic tire has a nonconductive tread rubber constructing an outer surface of a tread portion, a nonconductive side wall rubber constructing an outer surface of a side wall portion, and a rim strip rubber constructing an outer surface of a bead portion. The pneumatic tire has a conductive sheet formed by a conductive rubber. The conductive sheet reaches the rim strip rubber from the tread rubber while passing between a carcass and the side wall rubber, and terminates without being exposed to the outer surface of the bead portion. The rim strip rubber is partitioned into a nonconductive rubber portion and a conductive rubber portion, and the conductive rubber portion is connected to the conductive sheet and is exposed to a bead bottom surface.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: November 18, 2014
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Yoshinori Asayama
  • Patent number: 8839833
    Abstract: A tire having two beads and a carcass reinforcement with a main part wrapped within each bead around a bead wire core to form a turned-back portion. Each bead has an additional reinforcement and a filler profiled element extending the bead wire core radially outwards. This filler profiled element has, in any meridian plane, a three exterior sides including a radially inner side, axially inner side and axially outer side, with the axially inner and outer sides converging at a radially outermost point, and is formed of a stack in the radial direction of at least three polymer materials in contact along a contact surface that intersects any meridian plane along a meridian line.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: September 23, 2014
    Assignees: Michelin Recherche et Techniques S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Bopha Grisin, Chris Boyer
  • Patent number: 8833355
    Abstract: Embodiments of systems, apparatuses, articles, methods, and tires for throwing machines are generally described herein. Other embodiments may be described and claimed.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: September 16, 2014
    Assignee: Jugs Sports, Inc.
    Inventor: Kerry K. Paulson
  • 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: 8807183
    Abstract: A heavy duty tire comprises: a bead filler disposed radially outside a bead core and axially outside a carcass main portion; a bead-reinforcing layer made of steel cords; and a chafer made of a rubber extending along the bead bottom surface. The chafer rubber has a complex elastic modulus in a range of 8 to 12 MPa and a 100% modulus in a range of 4.0 to 5.5 MPa. In the bead-reinforcing layer, the steel cord count is 25 to 40/5 cm, the steel cord diameter is 0.8 to 1.2 mm, and the cord angle is 30 to 60 degrees with respect to the tire radial direction. The bead filler comprises a main filler made of a low modulus rubber and a fastening filler made of a high modulus rubber. The fastening filler has an L-shaped cross sectional shape and comprises an axially-extending base portion and a radially-extending axially inner portion. The main filler has a part wedged between the base portion and axially inner portion of the fastening filler.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: August 19, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kiyoto Maruoka
  • Patent number: 8800625
    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: Grant
    Filed: December 14, 2009
    Date of Patent: August 12, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Isamu Kishizoe
  • Patent number: 8763664
    Abstract: Tire reinforcement (10) having a bi-material structure of reinforcing elements that consists of at least a plurality of extensible first reinforcing elements (1) and at least a plurality of inextensible second reinforcing elements (2), these first and second reinforcing elements being mutually parallel and distributed alternately in appropriate proportions in order to achieve the desired level of reinforcement, these first and second reinforcing elements lying within the same mean plane, this reinforcement being such that the extensible first reinforcing elements (1) are coupled to the inextensible second reinforcing elements (2) over a coupling length Lc which is shorter than the length L1 of the extensible first reinforcing elements (1) so that, with each of the first and second reinforcing elements having two ends, at least one of the ends of the extensible first reinforcing elements (1) is offset in relation to the two ends of the inextensible second reinforcing elements (2).
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: July 1, 2014
    Assignees: Societe de Technologie Michelin, Michelin Recherche et Technique S.A.
    Inventors: Murielle De-Tullio, Jean-Marc Viller
  • 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: 8695666
    Abstract: A pneumatic radial tire has a pair of opposing bead portions 14, each bead portion 14 has a bead core 23 and a bead apex 24; at least one carcass reinforcing ply 12 having radially oriented steel cords 22, the at least one carcass reinforcing ply 12 has a main portion 18 and two turnups 20, one turnup 20 extending from each end of the main portion 18 and having a terminal end 21, the carcass reinforcing ply main portion 18 extends between the opposing bead cores 23 and turnups 20 are located axially outward of the bead core 23 and a portion of the bead apex 24; and two pairs of steel cord reinforced chippers, one pair adjacent each turnup, each pair having one inner chipper 40 being adjacent and on an axially inner side of the turnup 20 and one outer chipper 30 being adjacent on an axially outer side of the turnup 20, the inner and outer chippers 40, 30 being adjacent the turnup 20 each have a terminal end 41, 31 extending radially outward of the terminal end 21 of the turnup 20.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: April 15, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Peter Johann Cornelius Maus
  • Patent number: 8695667
    Abstract: Method of manufacturing a tire comprising a carcass reinforcement extending between beads, this carcass reinforcement being anchored in each bead by being wrapped around each circumferential bead reinforcement to form a turned-back portion, this carcass reinforcement comprising at least one rubber ply which is reinforced with a plurality of metal cords of low or zero permeability, each bead comprising a plurality of rubber-based strips, at least one of these strips, known as the bead rubber strip, radially on the outside of the circumferential bead reinforcement performing a function of filling and mechanical connection between the carcass reinforcement and its turned-back portion, this bead rubber strip comprising a first surface axially towards the inside in contact with the carcass reinforcement and a second surface axially towards the outside, each bead further comprising at least one other strip, known as the filler strip which, radially on the outside of the radially outermost points of the turned-back
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: April 15, 2014
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Michael Cogne, Laurent Nadreau, Niclas Seidel, Robert Veyret
  • 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
  • Patent number: 8613299
    Abstract: A pneumatic tire having an impact resistant construction is provided. More specifically, a tire is provided that has increased resistance to travel conditions that can cause pinch shock. Reinforcements of a particular orientation are provided in portions of the tire where pinch shock typically occurs. A range of orientations for the cords used in such reinforcements is described.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: December 24, 2013
    Assignee: Michelin Recherche Et Technique S.A.
    Inventors: Christophe B. Rahier, Stéphane P. Callamand, Marc R. Favre, Jean-Michel C. Huyghe
  • Patent number: 8578987
    Abstract: A run-flat tire (12) comprising: a crown; two sidewalls (40); two beads (50) each one comprising at least one annular reinforcing structure (60); a carcass reinforcement (71, 72) anchored in each of the beads by wrapping it around the annular reinforcing structure so as to form an incoming portion (711) extending from the crown through the sidewalls towards the bead and a wrapped-around portion (712); and at least one sidewall insert (80); at least one sidewall of the tire further comprising at least one additional sidewall reinforcement (90) positioned axially on the inside of the carcass reinforcement and extending radially at least between a radial height H1 of 30 mm, H1 being measured from the radially innermost point of the annular reinforcing structure; and a radial height H2 equal to 30% of the height H of the tire; and a layer (110) of polymeric composition positioned between the additional sidewall reinforcement and the carcass reinforcement.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: November 12, 2013
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventor: François Hottebart
  • 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: 8517072
    Abstract: A tire having a circumferential tread, at least one belt, an inner liner, a pair of sidewalls, at least one carcass ply, and a pair of bead portions. The pair of bead portions each further includes a bead core, a bead filler having an upper end, a chaffer, and a gum strip. The chaffer extends axially outward from the inner liner towards the sidewall and curves radially upward along an axially outer portion of the bead core. The sidewall gum strip extends radially upward from a curved portion of the chaffer, wherein the sidewall gumstrip is located axially between the at least one carcass ply turn-up end and a sidewall.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: August 27, 2013
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Bradley J Harris, Chris A Swartzwelder
  • Patent number: 8499807
    Abstract: A reinforcing rubber layer having a falcated cross-section disposed on an inner side in a tire width direction of the carcass layer in a side wall portion. An angle ?, with respect to the total tire width SW and a tire cross-section height SH, satisfies a relationship (SH/SW×6+3)°???(SH/SW×6+8)°. Additionally, a height H1 of a bead filler is from 15 to 35% of the tire cross-section height SH and a height H2 of a maximum thickness position of the reinforcing rubber layer is from 35 to 55% of the tire cross-section height SH.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: August 6, 2013
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Tatsurou Shinzawa
  • Patent number: 8459322
    Abstract: A pneumatic radial tire has a chipper in place of a traditional apex, the chipper located between a carcass main portion and turnup portion. The chipper layer may be composed of a chopped carbon fiber and aramid composite reinforced elastomeric layer. The tire sidewalls have a radial height SH and a section width SW located within a range of 0.4 to 0.44 of the sidewall radial height SH measured from the bead core. The section width SW may further be located within a range of 0.1? to 0.3? inches from a radially outward end of the chipper layer in a radial direction. The tread may of a dual layer construction, having a radially inward first layer formed of a relatively low rolling resistance compound and a radially outward second layer formed of a compound containing silica.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: June 11, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael Stefan Skurich, Lisa Marie Missik-Gaffney, David Ray Hubbell, Teresa Diane Martter, George Frank Balogh, Arthur Allen Goldstein
  • Patent number: 8453693
    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: Grant
    Filed: November 18, 2009
    Date of Patent: June 4, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael Stefan Skurich, Lisa Marie Missik-Gaffney, David Ray Hubbell, Teresa Diane Martter, George Frank Balogh, Arthur Allen Goldstein
  • Patent number: 8424579
    Abstract: A pneumatic tire has an annular bead core, a bead filler, a carcass ply rolled up in such a manner as to pinch the bead core and the bead filler, and a white rubber arranged in an outer side of the carcass ply of the side wall portion. The white rubber has an inner peripheral end positioned in an outer side of the bead filler. The bead filler has a main body rubber portion running into the bead core from a leading end, and a soft rubber portion constructing a part of an outer surface of the bead filler and positioned in an inner side of the inner peripheral end of the white rubber. The soft rubber portion is harder than the white rubber and softer than the main body rubber portion.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: April 23, 2013
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Makoto Yoshikawa
  • Patent number: 8267136
    Abstract: An object of the present invention is to provide a heavy-duty pneumatic tire that is capable of suppressing deterioration by oxidation at a portion of a high heat generation in a bead portion, and that is excellent in sustainability of inner pressure holding performance as well as in durability. The heavy-duty pneumatic tire of the present invention includes a carcass and an inner liner disposed closer to the center of the tire than the carcass.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: September 18, 2012
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Jun Matsuda
  • 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: 8205652
    Abstract: The present invention is directed to a self-supporting tire. More specifically, the tire has a carcass, a tread, and a belt reinforcing structure located radially outward of the carcass and radially inward of the tread. The carcass is comprised of a reinforcing ply structure extending between a pair of bead portions, a pair of sidewalls, each sidewall located radially outward of one of the pair of bead portions, and a pair of inserts located in each sidewall. A first insert and second insert are located between the innerliner and the ply.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: June 26, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Thierry Paul-Marie Gabriel Koeune, Christian Jean-Marie Kaes, Laurent Roger Andre Dubos
  • Patent number: 8186405
    Abstract: A heavy-load radial tire includes a bead apex rubber 8 composed of a high-elastic lower apex portion 11 and a low-elastic upper apex portion 12. The lower apex portion 11 has an L-shaped cross section composed of a bottom piece portion 11a disposed along the radially outer surface of a bead core 5 and a standing piece portion 11b standing from the axially inner end of the bottom piece portion 11a and radially outwardly extending along a ply main portion 6a of a carcass 6. At an outer end position P1 of a ply turnup portion 6b, the upper apex portion 12 has a thickness T1s of 0.50 to 0.75 times a core width Bw of the bead core 5. At an outer end position P2 of an outer wound-up portion 9o of a bead reinforcing cord layer 9, the upper apex portion 12 has a thickness T2s of 0.57 to 0.90 times the core width Bw. The core width Bw is 0.68 to 0.80 times a bead bottom width BL.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: May 29, 2012
    Inventor: Kiyoto Maruoka
  • 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
  • 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: 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
  • 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
  • Patent number: 8002007
    Abstract: There is provide a pneumatic radial tire for heavy loads capable of more effectively preventing a breakdown due to separation of a rubber chafer in an area corresponding to a bead heal portion than before. A pneumatic radial tire 10 for heavy loads has a pair of bead portions 12, a bead core 14 which is embedded in each of the bead portions 12, a radial carcass 16 extending from one bead portion 12 to the other bead portion 12 and turned around the bead core 14 from an inner side to an outer side of the bead portion 12 in a width direction of the tire to be anchored, a rubber chafer 22 disposed over the radial carcass 16 in the opposite side of the bead core 14.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: August 23, 2011
    Assignee: Bridgestone Corporation
    Inventor: Akira Sasaki
  • Patent number: 7971615
    Abstract: The tire includes a first and second axially-spaced bead core, a carcass having at least one belt extending under a tread, and a first ply layer having first and second ends, a first end is located axially outside and adjacent a first bead core, and a second end that is located axially outside and adjacent a second bead core. The carcass further comprises first and second shoulder ply layers each shoulder ply layer having first and second ends, a first end is located under the tread belt, the shoulder ply extending down the side wall region with the second end folding from a position axially outside a respective bead core to a position axially inside and around the bead core. The carcass further comprises an additional reinforcement layer which wraps around the bead and is preferably positioned between the shoulder ply and the first ply layer, although not required.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: July 5, 2011
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Robert Anthony Neubauer, Keith Carl Trares, Robert Bernard Nelson, Joseph Kevin Hubbell, Robert Allen Losey, Ping Zhang
  • Patent number: 7954529
    Abstract: A heavy duty tire comprises: a carcass ply of cords extending between bead portions; and a bead reinforcing layer disposed in each of the bead portion. The carcass ply has edges winded around the bead cores so that the winded portion has a base part extending along the bead core from the axially inside to the axially outside thereof, and a radially outer part extending axially inwards on the radially outside of the bead core. The bead reinforcing layer comprises: a curved portion extending along the base part; an axially outer portion extending radially outwardly, separation from the base part; and an axially inner portion extending radially outwardly along a main portion of the carcass ply. The bead reinforcing layer is composed of a ply of cords laid side by side, and the spacing Da of the cords in an axially outer part beneath the bead core, of the curved portion is not less than 1.5 times and not more than 3.0 times the spacing Db of the cords in the axially outer portion.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 7, 2011
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hideaki Yoshikawa, Kiyoto Maruoka
  • Patent number: 7926533
    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: Grant
    Filed: October 31, 2007
    Date of Patent: April 19, 2011
    Assignee: The Goodyear Tire & Rubber Company, Inc.
    Inventor: Roel Domingo Villanueva
  • Patent number: 7909077
    Abstract: A heavy duty tire comprises a bead filler disposed in each bead portion (4). The bead filler (8) comprises: a main layer (13) having a complex elastic modulus E*2 of from 2.0 to 6.0 Mpa; and a fastening layer (12) having a complex elastic modulus E*1 of from 20 to 70 Mpa. The fastening layer comprises a base portion (12B) and an axially inner portion (12A) to have a L-shaped cross section. The height Ha of the axially inner portion (12A) is 35 to 100 mm and not more than the height Hb of the main layer (13), and the radial height Hb is 40 to 100 mm, each from the bead base line.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: March 22, 2011
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kiyoto Maruoka
  • Patent number: 7836929
    Abstract: A tire, which has a maximum section width, an upper section above the maximum section width, and a lower section below the maximum section width, includes a circumferential tread, a pair of sidewalls, and a pair of bead portions. The tire further includes at least one carcass ply extending circumferentially about the tire from one bead portion to the other and first and second reinforcement plies extending circumferentially about the tire. The first and second reinforcement plies are provided between the at least one carcass ply and at least one of the sidewalls of the tire. The first and second reinforcement plies include lower ends that terminate in the lower section of the tire and upper ends that terminate in the upper section of the tire.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: November 23, 2010
    Inventors: Jie Jin, Michael Crano
  • 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: 7810535
    Abstract: Provided is an ultra-low profile pneumatic radial tire for SUV or the like having an aspect ration of 55% or less and a tire outer diameter of 720 mm or more, which has improved load durability while managing a weight reduction without deteriorating driveability. A carcass layer (4) thereof is configured as a single ply, and both ends thereof are folded back around left and right bead cores (7) so as to wrap bead fillers (8). A folded-back portion (4t) is wrapped on the inner side of an end of a belt layer (5) in a range not greater than 10% of the maximum width of the belt layer (5). The hardness of the bead fillers is 65 to 80 in terms of JIS durometer A hardness, and a height hb of the bead fillers (8) from a bead base is brought to 10 to 20% of the height H of a tire cross-section.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: October 12, 2010
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Hiroyuki Kojima
  • 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
  • Publication number: 20100059161
    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: Application
    Filed: October 29, 2007
    Publication date: March 11, 2010
    Inventor: Jyunya Asari
  • 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