US3726078A - Steel cord and article including the same - Google Patents

Steel cord and article including the same Download PDF

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Publication number
US3726078A
US3726078A US00071151A US7115170A US3726078A US 3726078 A US3726078 A US 3726078A US 00071151 A US00071151 A US 00071151A US 7115170 A US7115170 A US 7115170A US 3726078 A US3726078 A US 3726078A
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US
United States
Prior art keywords
center core
steel cord
twisted
strands
filaments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00071151A
Other languages
English (en)
Inventor
Y Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Application granted granted Critical
Publication of US3726078A publication Critical patent/US3726078A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D29/00—Producing belts or bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
    • B60C9/2006—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords consisting of steel cord plies only
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
    • D07B1/0626—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration the reinforcing cords consisting of three core wires or filaments and at least one layer of outer wires or filaments, i.e. a 3+N configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1012—Rope or cable structures characterised by their internal structure
    • D07B2201/1014—Rope or cable structures characterised by their internal structure characterised by being laid or braided from several sub-ropes or sub-cables, e.g. hawsers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/201—Wires or filaments characterised by a coating
    • D07B2201/2011—Wires or filaments characterised by a coating comprising metals
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2042—Strands characterised by a coating
    • D07B2201/2043—Strands characterised by a coating comprising metals
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • D07B2201/206—Cores characterised by their structure comprising wires arranged parallel to the axis
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2095—Auxiliary components, e.g. electric conductors or light guides
    • D07B2201/2097—Binding wires
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • D07B2205/3085—Alloys, i.e. non ferrous
    • D07B2205/3089—Brass, i.e. copper (Cu) and zinc (Zn) alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/902—Reinforcing or tyre cords
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00—Resilient tires and wheels
    • Y10T152/10—Tires, resilient
    • Y10T152/10495—Pneumatic tire or inner tube
    • Y10T152/10765—Characterized by belt or breaker structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00—Resilient tires and wheels
    • Y10T152/10—Tires, resilient
    • Y10T152/10495—Pneumatic tire or inner tube
    • Y10T152/10819—Characterized by the structure of the bead portion of the tire
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00—Resilient tires and wheels
    • Y10T152/10—Tires, resilient
    • Y10T152/10495—Pneumatic tire or inner tube
    • Y10T152/10855—Characterized by the carcass, carcass material, or physical arrangement of the carcass materials

Definitions

  • center ore has a plurality of filaments o twisted
  • the present invention relates to a steel cord for reinforcing an article such as a rubber tire casing and a rubber belt and to the article including the same.
  • a prior art steel cord of the type described above consists in general of a center core formed by a plurality of strands twisted together and a plurality of outer strands twisted around the center core, each of the outer strands consisting of a center core formed by a filament or a strand and a plurality of outer strands each formed by a filament or a twisted strand and twisted around the center core of the respective outer strand of the steel cord.
  • the article such as a rubber tire and the rubber belt including the steel cord for reinforcing the same is made expensive.
  • the present invention aims at avoiding the above described disadvantages of the prior art.
  • An object of the present invention is to provide a novel and useful steel cord in which the disadvantages of the prior art steel cord are eliminated.
  • Another object of the present invention is to provide a novel and useful steel cord of the type described above which can be produced at a lower cost and still has superior mechanical properties.
  • a further object of the present invention is to provide a novel and useful steel cord of the type described above which, when embedded in a rubber article, has a high adhesive power to the rubber material.
  • a steel cord characterized by the center core including a plurality of filaments or a plurality of twisted strands which are arranged substantially in parallel to-each other to form a parallel or non-twisted strand around which a plurality of outer strands are twisted to form the steel cord.
  • the center core is in the form of a parallel or non-twisted strand, no twistsing machine is required to form the center core thereby permitting the cost for making the center core to be extremely lowered.
  • center core in the form of a parallel or non-twisted strands constructed in accordance with the present invention provides a lower loss of breaking load of the steel cord as well as a higher modulus of elasticity thereby permitting the breaking strength and fatigue to be improved.
  • Each of the outer strands may be formed by a filament or a twisted strand.
  • the twisted strand forming the respective outer strand may further be formed by a plurality of filaments or a plurality of twisted strands.
  • a binding filament may be twisted around the finished steel cord so as to prevent the loosening thereof.
  • Each of the center core and the outer strands is preferably plated with brass so as to improve the adhesive power to the rubber material in an article in which the steel cord is embedded.
  • FIG. 1 is a general view partly broken showing a prior art steel cord
  • FIG. 2 is a general view similar to FIG. 1 but showing a preferred embodiment of the steel cord of the present invention
  • FIG. 3 is a cross-sectional view showing the construction of the embodiment of the present invention shown in FIG. 2; I
  • FIGS. 4 to 6 are cross-sectional views similar to FIG. 3 showing various modifications of the steel cord shown in FIG. 3;
  • FIG. 7 is a cross-sectional view showing a rubber tire casing in which the steel cords of the present invention are embedded.
  • the steel cord of the present invention comprises a center core 5 formed by a plurality of filaments 6 arranged substantially in parallel to each other so as to form a parallel or non-twisted strand 5 as shown in FIG. 2.
  • a plurality of strands 4 are twisted around center core 5 to form outer strands 3 in the similar manner as in the case of FIG. 1.
  • the steel cord of the present invention provides a lower loss of breaking load as well as a high torsion value thereby permitting the mechanical properties such as the breaking strength and the fatigue resisting property to be increased due to the parallel arrangement of the filaments of the center core.
  • FIG. 3 shows the arrangement of the elements of the embodiment of the present invention shown in FIG. 2.
  • the filament 6 is formed by three solid steel wires arranged substantially in parallel to each other and six solid steel wires 4 having a greater diameter than that of filament 6 are twisted around the center core formed by three filaments 6.
  • a binding filament 7 is twisted around the steel cord so as to prevent the loosening of the steel cord.
  • the number of filaments 6 and the number of outer strands 4 can be varied appropriately.
  • FIG. 4 shows a modification of the steel cord of FIG. 3.
  • the outer strands are constructed by six twisted strands 4' consisting of a center core formed by a filament having the same diameter as that of filament 6 of center core 5 and six filaments each having the same diameter as that of filament 6 and twisted around the center core of twisted strand 4'. Since all the filaments are of the same diameter the preparation of the filaments is simplified to lower the production cost.
  • FIG. 5 shows a further modification of the steel cord of FIG. 3.
  • outer strands 4" are constructed by six twisted strands 9 having a center core formed by a twisted strand l0 and six twisted strands 10 twisted around the center core.
  • FIG. 6 shows a still further modification of the steel cord of FIG. 3.
  • the center core is formed by three twisted strands 11 arranged substantially in parallel to each other so as to form a center core in the form of a parallel or non-twisted strand, while the outer strands 4 are formed by six filaments having a greater diameter than that of the twisted strands forming the center core.
  • outer strands may be formed by a plurality of twisted strands as shown in FIG. 4 and 5 while the mechanical properties are sufficiently maintained.
  • FIG. 7 shows a rubber tire in which the steel cords of the present invention are embedded so as to reinforce the tire.
  • rubber tire casing 12 comprises a single carcass ply 14 embedded in tire casing 12 and a breaker ply 15 embedded adjacent to tread portion 13 of tire casing 12 and a plurality of crown or head plies 16, 17 and 18 embedded in tire casing 12 between breaker ply 15 and carcass ply 14.
  • Plies 15, 16, 17 and 18 include a plurality of steel cords described in connection with FIGS. 2 to 6.
  • Steel cord 19 may also be embedded in tire casing 12 so as to reinforce the longitudinal edge portion of carcass ply 14.
  • brass-plating is preferably applied to each of the center core and the outer strands of the steel cord of the present invention.
  • Article comprising rubber material and a plurality of steel cords embeded therein for increasing the mechanical strength of said article, wherein the improvement comprises the fact that said steel cord consists of a center core including three filaments arranged substantially parallel to each other and six outer strands twisted around said center core, the lay of twist of all of said outer strands extending in one direction and the diameter of each of said six outer strands being greater I than the diameter of each of said three center core fila- 3.
  • a steel cord comprising a center core formed of ree filaments arranged in substantially parallel relation to provide a parallel, untwisted strand; and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ropes Or Cables (AREA)
US00071151A 1970-09-05 1970-09-10 Steel cord and article including the same Expired - Lifetime US3726078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4262970 1970-09-05

Publications (1)

Publication Number Publication Date
US3726078A true US3726078A (en) 1973-04-10

Family

ID=10425280

Family Applications (1)

Application Number Title Priority Date Filing Date
US00071151A Expired - Lifetime US3726078A (en) 1970-09-05 1970-09-10 Steel cord and article including the same

Country Status (7)

Country Link
US (1) US3726078A (en(2012))
JP (1) JPS5123622B1 (en(2012))
BE (1) BE756021A (en(2012))
DE (1) DE2044665A1 (en(2012))
FR (1) FR2068314A5 (en(2012))
GB (1) GB1311914A (en(2012))
LU (1) LU61693A1 (en(2012))

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197894A (en) * 1975-05-26 1980-04-15 Compagnie Generale Des Etablissements Cable reinforced pneumatic tires
EP0040877A1 (en) * 1980-05-26 1981-12-02 Gencord S.p.A. Metal wire cord having strands with parallel filaments
WO1987003636A1 (en) * 1985-11-27 1987-06-18 Oy Partek Ab Prestressing cable for precast concrete units
US4783955A (en) * 1985-11-20 1988-11-15 Tokyo Rope Mfg. Co., Ltd. Tire cord
WO1989009305A1 (en) * 1988-03-25 1989-10-05 N.V. Bekaert S.A. Open steel cord structure
USH1505H (en) * 1990-12-27 1995-12-05 Tokyo Rope Mfg. Co., Ltd. Steel radial tire
US5473878A (en) * 1993-03-25 1995-12-12 The Goodyear Tire & Rubber Company Having a core and at least one coaxial layer of filaments twisted in the same direction at the same pitch
US6272830B1 (en) 2000-02-18 2001-08-14 The Goodyear Tire & Rubber Company Steel cord for reinforcing elastomeric articles
US6658836B2 (en) * 2001-03-14 2003-12-09 The Goodyear Tire & Rubber Company Hybrid cord
US20040016497A1 (en) * 1994-12-20 2004-01-29 The Goodyear Tire & Rubber Company Tires with high strength reinforcement
EP1964952A1 (en) 2007-02-28 2008-09-03 Filtes International S.r.l. Yarn for technical fabrics and method for manufacturing the same
US20130081508A1 (en) * 2011-09-29 2013-04-04 Shimano Inc. Bicycle control cable
US20140027211A1 (en) * 2011-04-14 2014-01-30 Otis Elevator Company Coated Rope or Belt for Elevator Systems
US20170028789A1 (en) * 2014-04-18 2017-02-02 Bridgestone Corporation Tire
CN107000483A (zh) * 2014-12-18 2017-08-01 倍耐力轮胎股份公司 用于车辆车轮的轮胎

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002572A1 (en) * 1979-05-23 1980-11-27 Sumitomo Rubber Ind Cord for tire
DE2941541A1 (de) * 1979-10-13 1981-04-23 Continental Gummi-Werke Ag, 3000 Hannover Drahtseil als verstaerkungselement fuer gummi- oder kunststoffartikel
JPS5686802A (en) * 1979-12-18 1981-07-15 Bridgestone Corp Pneumatic radial tire
DE3317792A1 (de) * 1983-05-16 1984-11-29 Akzo Gmbh, 5600 Wuppertal Verstaerkungsseil aus stahldraehten fuer elastomere erzeugnisse
DE8810534U1 (de) * 1988-08-19 1988-10-06 SP Reifenwerke GmbH, 6450 Hanau Stahlseil zur Verstärkung elastomerer Erzeugnisse
WO1993001375A1 (en) * 1991-07-09 1993-01-21 Severo-Kavkazsky Territorialny Kooperativno-Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Agropromyshlennogo Komplexa Reinforcement rope
FR3156459A1 (fr) * 2023-12-07 2025-06-13 Compagnie Generale Des Etablissements Michelin Câble multi-torons à deux couches de multi-torons

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1312872A (en) * 1919-08-12 Tingee
US2563113A (en) * 1948-04-13 1951-08-07 Us Rubber Co Method of bonding rubber to metals
US3032963A (en) * 1959-08-11 1962-05-08 United States Steel Corp Cord and article containing the same
US3209528A (en) * 1963-04-26 1965-10-05 Armco Steel Corp Flexible wire rope core
US3336744A (en) * 1964-10-28 1967-08-22 Trefileries Leon Bekaert S P R Reinforcing cord having two-filament core surrounded by six single filatment units

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1312872A (en) * 1919-08-12 Tingee
US2563113A (en) * 1948-04-13 1951-08-07 Us Rubber Co Method of bonding rubber to metals
US3032963A (en) * 1959-08-11 1962-05-08 United States Steel Corp Cord and article containing the same
US3209528A (en) * 1963-04-26 1965-10-05 Armco Steel Corp Flexible wire rope core
US3336744A (en) * 1964-10-28 1967-08-22 Trefileries Leon Bekaert S P R Reinforcing cord having two-filament core surrounded by six single filatment units

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197894A (en) * 1975-05-26 1980-04-15 Compagnie Generale Des Etablissements Cable reinforced pneumatic tires
EP0040877A1 (en) * 1980-05-26 1981-12-02 Gencord S.p.A. Metal wire cord having strands with parallel filaments
US4783955A (en) * 1985-11-20 1988-11-15 Tokyo Rope Mfg. Co., Ltd. Tire cord
WO1987003636A1 (en) * 1985-11-27 1987-06-18 Oy Partek Ab Prestressing cable for precast concrete units
WO1989009305A1 (en) * 1988-03-25 1989-10-05 N.V. Bekaert S.A. Open steel cord structure
USH1505H (en) * 1990-12-27 1995-12-05 Tokyo Rope Mfg. Co., Ltd. Steel radial tire
US5473878A (en) * 1993-03-25 1995-12-12 The Goodyear Tire & Rubber Company Having a core and at least one coaxial layer of filaments twisted in the same direction at the same pitch
US6691758B2 (en) 1994-12-20 2004-02-17 The Goodyear Tire & Rubber Company Tires with high strength reinforcement
US20040016497A1 (en) * 1994-12-20 2004-01-29 The Goodyear Tire & Rubber Company Tires with high strength reinforcement
US6857458B2 (en) 1994-12-20 2005-02-22 The Goodyear Tire & Rubber Company Tires with high strength reinforcement
US20050051251A1 (en) * 1994-12-20 2005-03-10 The Goodyear Tire & Rubber Company Tires with high strength reinforcement
US7082978B2 (en) 1994-12-20 2006-08-01 The Goodyear Tire & Rubber Company Tires with high strength reinforcement
US6272830B1 (en) 2000-02-18 2001-08-14 The Goodyear Tire & Rubber Company Steel cord for reinforcing elastomeric articles
US6658836B2 (en) * 2001-03-14 2003-12-09 The Goodyear Tire & Rubber Company Hybrid cord
EP1964952A1 (en) 2007-02-28 2008-09-03 Filtes International S.r.l. Yarn for technical fabrics and method for manufacturing the same
US20140027211A1 (en) * 2011-04-14 2014-01-30 Otis Elevator Company Coated Rope or Belt for Elevator Systems
US9731938B2 (en) * 2011-04-14 2017-08-15 Otis Elevator Company Coated rope or belt for elevator systems
US20130081508A1 (en) * 2011-09-29 2013-04-04 Shimano Inc. Bicycle control cable
US10605299B2 (en) 2011-09-29 2020-03-31 Shimano Inc. Bicycle control cable
US20170028789A1 (en) * 2014-04-18 2017-02-02 Bridgestone Corporation Tire
CN107000483A (zh) * 2014-12-18 2017-08-01 倍耐力轮胎股份公司 用于车辆车轮的轮胎
CN107000483B (zh) * 2014-12-18 2019-09-03 倍耐力轮胎股份公司 用于车辆车轮的轮胎

Also Published As

Publication number Publication date
JPS5123622B1 (en(2012)) 1976-07-17
BE756021A (fr) 1971-02-15
FR2068314A5 (en(2012)) 1971-08-20
GB1311914A (en) 1973-03-28
LU61693A1 (en(2012)) 1970-12-21
DE2044665A1 (en(2012)) 1972-03-16

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