WO2003104536A1 - ゴム補強用コード及びそれを含有するゴム製品 - Google Patents
ゴム補強用コード及びそれを含有するゴム製品 Download PDFInfo
- Publication number
- WO2003104536A1 WO2003104536A1 PCT/JP2003/007179 JP0307179W WO03104536A1 WO 2003104536 A1 WO2003104536 A1 WO 2003104536A1 JP 0307179 W JP0307179 W JP 0307179W WO 03104536 A1 WO03104536 A1 WO 03104536A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fiber
- rubber
- core fiber
- reinforcing cord
- rubber reinforcing
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/48—Tyre cords
Definitions
- the present invention relates to a reinforcing cord embedded in a rubber product such as a rubber belt and a rubber tire, and a rubber product reinforced with the cord.
- cords made of fuel yarn such as glass fiber or aramide fiber are embedded as a reinforcing material.
- This cord is unified by ply-twisting glass fibers or aramide fibers, then bundling a plurality of them and ply-twisting them.
- the characteristics of the cord are adjusted by appropriately changing the combination in the state of the lower twist and the upper twist. For example, increasing the number of twists in the primary twist and the primary twist improves the flex fatigue resistance of the cord.
- a cord made of a twisted yarn in which the direction of the first twist and the direction of the first twist are the same is excellent in bending fatigue resistance. This means that if the entire cord made of twisted yarn is fired only in one direction, the lower twisted yarn will be twisted in the same direction by the upper twist, and the case where the number of twists is increased. This is because a similar effect is achieved.
- Japanese Utility Model Publication No. 59-15780 describes a glass fiber which is ply-twisted and the twisted yarn is fired in the same direction as the ply-twist.
- a cord made of a twisted yarn in which the direction of the first twist and the direction of the first twist are opposite to each other has excellent dimensional stability.
- An object of the present invention is to provide a rubber reinforcing cord having high bending fatigue resistance and high dimensional stability, and a rubber product such as a rubber belt containing the rubber reinforcing cord.
- a plurality of ply-twisted strands are arranged around a core fiber, and in a reinforcing material in which these are ply-twisted, the direction of ply-twisting and the direction of ply-twisting are the same.
- the core fiber is ply-twisted in the direction opposite to the direction of ply-twisting or non-twisted.
- the rubber reinforcing cord receives a tension outside the bent portion and a buckling force inside the bent portion when bending.
- the twisted yarn having high bending fatigue resistance and a large number of twists is arranged on the outer peripheral portion, whereby the bending fatigue resistance of the rubber reinforcing cord is improved.
- the core fiber or the core fiber twisted in the opposite direction to the direction of the lower twist of the silk is used. Arrange the untwisted core fibers.
- a rubber reinforcing cord having a core fiber twisted in a direction opposite to the direction of the twisting of the silk the twisting of the core fiber is slightly unwound due to the twisting, and the twisting number of the core fiber is increased. An effect similar to that when the size is reduced is achieved, whereby the dimensional stability of the rubber reinforcing cord is maintained high.
- the core fiber when the core fiber is non-twisted, the core fiber is twisted. Since the number of twists is small, the number of twists is small, and the dimensional stability of the rubber reinforcing cord is maintained.
- the rubber reinforcing cord of the present invention is buried in a rubber product such as a rubber tire or a rubber belt to significantly increase the tensile strength and durability of the rubber product.
- FIG. 1 is a diagram schematically showing a cross section of the rubber reinforcing cord produced in Example 1. Preferred embodiments of the invention
- the rubber reinforcing cord according to the present invention has a core fiber disposed at the center and a child restraint disposed around the core fiber, and these are twisted together in the same direction as the lower twist of the child restraint to be integrated. It has been.
- the core fiber may be either a twisted one in a direction opposite to the lower burning direction of the binding or a non-twisted fiber, but a fiber twisted in the opposite direction to the twisting of the silk is preferred.
- the core fiber can be made to have a state similar to non-twist, or an effect similar to that obtained by reducing the number of twists can be obtained. It is.
- the number of twists of the core fiber is preferably 40 to 100 times / 100 c ⁇ , but is not limited thereto.
- the number of twists of the silk is preferably 40 to 150 times Z100m, but is not limited to this.
- the number of times of twisting is preferably 40 to 150 times Z100cm, but is not limited thereto.
- the core fiber may be a single fiber or a plurality of single fibers aligned.
- the core fiber is preferably glass fiber, polyparaphenylene benzobenzoxoxazole (PBO) fiber, carbon fiber or aramide fiber. Not limited. These fibers have a significantly higher tensile strength than other organic fibers that can be used as reinforcement. Glass fiber, especially high-strength glass fiber, has high heat resistance, and is therefore ideal as a core fiber for rubber reinforcing cord in applications such as timing belts for engines.
- the average diameter of the filament is preferably 5 to 11 ⁇ , but is not limited thereto.
- the total number of bundles of the filaments constituting the core fiber is preferably about 200 to 500, but is not particularly limited.
- the core fiber may be composed of one strand, or may be composed of 2 to 10 strands in which 20 to 2500 filaments are bundled.
- the child is arranged around the core fiber. If the core fiber is located closer to the center and the silk is located closer to the outer peripheral surface of a section of the rubber reinforcing cord, the positional relationship between the binding and the core fiber and the child
- the arrangement mode such as the number of bindings is not particularly limited. However, it is preferable that the silk is arranged concentrically at equal intervals around the core fiber.
- the rubber reinforcing cord having such an arrangement exhibits the same bending fatigue resistance and the same dimensional stability against bending in all directions.
- the binding is a twisted yarn obtained by bundling filaments such as glass fiber, ⁇ ⁇ ⁇ fiber, carbon fiber, and aramide fiber, and may be twisted in the same direction as the twisting. Thereby, an effect similar to that of increasing the number of twists of the child net is exerted.
- the silk around the core fiber By arranging the silk around the core fiber, the bending fatigue resistance of the rubber reinforcing cord can be dramatically improved.
- the sub-net is disposed around the core fiber and must withstand the tension and buckling force due to the bending of the rubber product, the sub-net is preferably thinner than the core fiber.
- the cross-sectional area of the core fiber (including the gap between the filaments and, when the core fiber is composed of multiple strands, the sum of the strands) is 5 to 95%, preferably 30 to 95% of the cross-sectional area of the entire cord. 70%. In these ranges, the improvement of the bending fatigue resistance and the maintenance of the dimensional stability of the rubber reinforcing cord are achieved in a well-balanced manner.
- At least one of the core fiber and the adhesive fiber is bonded to the matrix rubber of the rubber product JP03 / 07179
- An adhesive is usually applied to enhance the properties.
- Such an adhesive may contain a component that improves the compatibility with the matrix rubber, and this adhesive contains resorcinol-formalin rubber latex (RFL), an epoxy resin and / or an isocyanate compound. It may be a mixed solution.
- RTL resorcinol-formalin rubber latex
- This adhesive also has a function of preventing the core fiber or the child bond from fraying.
- the core fiber and fiber is glass fiber, before applying the above adhesive, make sure that the filaments do not fray or that the filaments are rubbed and the surface is not damaged.
- a known sizing agent containing a silane coupling agent or the like may be applied to the filament.
- the core fiber and the binding can be twisted as desired by any twisting device. These are ply-twisted by a device, with the bindings placed around the core fiber.
- This device may be a known device such as a ring twisting machine, a flyer single twisting machine or a stranded wire machine.
- the aligned and ply-twisted core fibers and cords may be used as they are as rubber reinforcing cords, and the above-mentioned adhesive may be used to further enhance the adhesion of the rubber product to the matrix rubber.
- the surface may be treated with a secondary treating agent compatible with the matrix rubber.
- This secondary treating agent may contain a crosslinking agent, and may be CSM (chlorosnoreonated polyethylene). Examples and comparative examples
- Filament mosquitoes S600 having an average diameter of 9 ⁇ m and made of a glass composition were bundled to form a bundle, and a sizing agent was applied.
- the bundle is impregnated with an RFL solution so that the solid adhesion rate is 20% by weight, and then, the twisting is performed by a twisting machine at a twist of 80 times / 100 cm in the S twisting direction. It was a core fiber.
- a bundle of the same 600 filaments bundled was impregnated so as to have a solids content of 20% by weight. This bundle is twisted by the twisting machine in the number of twists of 80, Z 100 cm, and in the Z twist direction.
- One core fiber and six child nets were aligned, and the twisting machine was twisted in the Z-burning direction at 80 turns / 10 Ocm. Thereafter, a secondary treating agent was applied so as to have a solids adhesion rate of 4% by weight, and was heated and dried to obtain a rubber reinforcing cord.
- a rubber reinforcing cord was prepared in the same manner as in Example 1 except that the configuration of the rubber reinforcing cord was changed as specified in Table 1 below, and the characteristics of the cord were measured.
- the PBO fiber used in Example 2 and Comparative Example 2 was a non-twisted product manufactured by Toyobo Co., Ltd. and had a length of 160 tex. Table 1 shows the configuration of these rubber reinforcing cords and the measurement results of their properties.
- Example 1 1 strand 6 strands 953 635 3.12 75
- Example 2 1 strand 6 strands 972 61 6 2.07 78
- Comparative Example 2 1 strand 6 strands 924 752 2.31 65
- Example 1 shows that the dimensional stability of the rubber reinforcing cord is as long as the direction of the ply twist of the core fiber is opposite to the direction of the ply twist and the direction of the upper burning. It shows that the flex fatigue resistance is significantly improved while being kept high.
- Example 2 shows that the cord using the PBO fiber improves the dimensional stability of the rubber reinforcing cord in addition to the effect of Example 1 described above.
- Example 1 shows that the cords in which the direction of the lower burning of the core fiber, the direction of the lower twist of the restraint, and the direction of the upper twist are all the same have improved bending fatigue resistance. However, it shows that the dimensional stability is significantly reduced. Industrial applicability
- the rubber reinforcing cord of the present invention has excellent bending fatigue resistance and maintains high dimensional stability of a rubber product. Therefore, the rubber product reinforced with this cord can maintain high dimensional stability and high tensile strength for a long period of time even in extremely severe use conditions such as timing belts for engines.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2004-7020148A KR20050010887A (ko) | 2002-06-10 | 2003-06-06 | 고무 보강용 코드 및 이 코드를 함유하는 고무 제품 |
EP03736064A EP1512780B1 (en) | 2002-06-10 | 2003-06-06 | Rubber reinforcing cord and rubber product containing the cord |
CA002486975A CA2486975A1 (en) | 2002-06-10 | 2003-06-06 | Rubber reinforcing cord and rubber product containing the cord |
US10/998,919 US7080500B2 (en) | 2002-06-10 | 2004-11-30 | Rubber reinforcing cord and rubber product employing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002168521A JP4018460B2 (ja) | 2002-06-10 | 2002-06-10 | ゴム補強用コードおよびそれを含有するゴム製品 |
JP2002-168521 | 2002-06-10 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/998,919 Continuation US7080500B2 (en) | 2002-06-10 | 2004-11-30 | Rubber reinforcing cord and rubber product employing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003104536A1 true WO2003104536A1 (ja) | 2003-12-18 |
Family
ID=29727687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/007179 WO2003104536A1 (ja) | 2002-06-10 | 2003-06-06 | ゴム補強用コード及びそれを含有するゴム製品 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7080500B2 (ja) |
EP (1) | EP1512780B1 (ja) |
JP (1) | JP4018460B2 (ja) |
KR (1) | KR20050010887A (ja) |
CN (1) | CN100445446C (ja) |
CA (1) | CA2486975A1 (ja) |
WO (1) | WO2003104536A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1616993A4 (en) * | 2003-04-09 | 2007-08-01 | Nippon Sheet Glass Co Ltd | REINFORCING STRING FOR REINFORCING RUBBER AND RUBBER PRODUCT USING THE SAME |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3864820B2 (ja) * | 2002-03-22 | 2007-01-10 | 日本板硝子株式会社 | ゴム補強用ハイブリッドコード及びゴム製品 |
WO2005031063A1 (ja) * | 2003-09-25 | 2005-04-07 | Nippon Sheet Glass Company, Limited | ゴム補強用コードおよびその製造方法ならびにそれを用いたゴム製品 |
JPWO2005061766A1 (ja) * | 2003-12-18 | 2007-07-12 | 日本板硝子株式会社 | ゴム補強用コードおよびそれを用いたゴム製品 |
EP1980657B8 (en) | 2005-11-09 | 2015-09-23 | Nippon Sheet Glass Company, Limited | Cord for rubber reinforcement |
US7617667B2 (en) * | 2005-12-22 | 2009-11-17 | Pascale Industries, Inc. | Treatment of brittle, high-modulus yarns to yield improved processing characteristics |
US7572745B2 (en) * | 2006-09-26 | 2009-08-11 | The Gates Corporation | Fluid transfer hose reinforced with hybrid yarn |
US7780560B2 (en) * | 2006-10-27 | 2010-08-24 | Veyance Technologies, Inc. | Power transmission belt |
KR100775702B1 (ko) * | 2007-03-05 | 2007-11-09 | 유종도 | 내열 및 내염성 비석면 복합섬유 |
US20080316695A1 (en) * | 2007-06-07 | 2008-12-25 | Xplore Technologies Corporation Of America | Electronic Enclosure Fastening Belt |
WO2008153917A1 (en) * | 2007-06-07 | 2008-12-18 | Xplore Technologies Corporation Of America | Electronic enclosure fastening belt |
BRPI0820075B8 (pt) * | 2007-11-15 | 2020-01-14 | Nippon Sheet Glass Co Ltd | cordão de reforço e produto de borracha usando o mesmo |
JP5116791B2 (ja) * | 2010-03-23 | 2013-01-09 | 株式会社椿本チエイン | 歯付ベルト |
FR2974583B1 (fr) * | 2011-04-28 | 2013-06-14 | Michelin Soc Tech | Cable textile composite aramide-polycetone |
ITTO20110797A1 (it) * | 2011-09-07 | 2013-03-08 | Megadyne S P A | Cinghia dentata ad alte prestazioni |
DE102013221728A1 (de) * | 2013-10-25 | 2015-04-30 | Continental Reifen Deutschland Gmbh | Hybridfestigkeitsträger für elastomere Erzeugnisse, insbesondere für die Gürtelbandage von Fahrzeugluftreifen |
JP6177198B2 (ja) * | 2014-06-30 | 2017-08-09 | ゲイツ・ユニッタ・アジア株式会社 | 歯付きベルト |
JP6764420B2 (ja) * | 2015-12-21 | 2020-09-30 | 日本板硝子株式会社 | ゴム補強用コード及びそれを用いたゴム製品 |
AU2017248361B2 (en) * | 2016-04-08 | 2019-08-15 | Gates Corporation, a Delaware Corporation | Hybrid cable for reinforcing polymeric articles and reinforced articles |
JP6612827B2 (ja) * | 2016-10-20 | 2019-11-27 | 三ツ星ベルト株式会社 | 諸撚りコード及びその製造方法並びに伝動ベルト及びその使用方法 |
JP6369588B1 (ja) * | 2017-03-27 | 2018-08-08 | 横浜ゴム株式会社 | 空気入りタイヤ |
DE102019100654A1 (de) * | 2019-01-11 | 2020-07-16 | Arntz Beteiligungs Gmbh & Co. Kg | Kraftübertragungsriemen mit Aramid-Zugstrang |
CN112921464B (zh) * | 2021-01-29 | 2022-04-22 | 福建强纶新材料股份有限公司 | 一种弹性复合丝线及其制备方法 |
Citations (6)
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JPS5584432A (en) * | 1978-12-20 | 1980-06-25 | Toyo Boseki | Production of weft yarn for tire reinforcing fabric |
JPS6171204A (ja) * | 1984-09-13 | 1986-04-12 | Bridgestone Corp | 空気入りラジアルタイヤのカ−カス用プライ |
EP0329593A1 (en) * | 1988-02-17 | 1989-08-23 | The Goodyear Tire & Rubber Company | Cables and tires reinforced by said cables |
JPH0976707A (ja) * | 1995-09-13 | 1997-03-25 | Bridgestone Corp | 空気入りタイヤ |
JPH10297210A (ja) * | 1997-04-30 | 1998-11-10 | Bridgestone Corp | 空気入りラジアルタイヤ |
JP2003041447A (ja) * | 2001-07-24 | 2003-02-13 | Teijin Ltd | ハイブリッドコード及びゴム補強物 |
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US2755214A (en) * | 1952-07-18 | 1956-07-17 | Firestone Tire & Rubber Co | Tire cord and method of making same |
US3029590A (en) * | 1958-12-30 | 1962-04-17 | Owens Corning Fiberglass Corp | Extensible fibrous glass textile strand structure and method of making same |
US4155394A (en) * | 1977-08-29 | 1979-05-22 | The Goodyear Tire & Rubber Company | Tire cord composite and pneumatic tire |
JPS5777336A (en) * | 1980-10-27 | 1982-05-14 | Hitachi Ltd | Composite fiber product |
JPS5915780Y2 (ja) * | 1981-06-15 | 1984-05-10 | 三ツ星ベルト株式会社 | 歯付ベルト |
JPS5915780A (ja) | 1982-07-19 | 1984-01-26 | 松下冷機株式会社 | 製氷装置付冷蔵庫 |
US4852625A (en) * | 1984-04-10 | 1989-08-01 | Mitsubishi Belting Ltd. | Tire for two-wheeled vehicle in which individual cord belts contain both adhesive and reinforcing cords |
JPH0742664B2 (ja) * | 1988-11-10 | 1995-05-10 | 日本石油株式会社 | 繊維強化複合材ケーブル |
JP2714296B2 (ja) * | 1991-11-26 | 1998-02-16 | 住友ゴム工業株式会社 | 空気入りラジアルタイヤ |
JP3427714B2 (ja) * | 1998-01-23 | 2003-07-22 | 日本板硝子株式会社 | ゴム補強用ガラス繊維コード |
CN1188455C (zh) * | 1999-08-23 | 2005-02-09 | 帝人株式会社 | 生产粘合剂处理的聚酯纤维帘子线的方法 |
-
2002
- 2002-06-10 JP JP2002168521A patent/JP4018460B2/ja not_active Expired - Lifetime
-
2003
- 2003-06-06 CA CA002486975A patent/CA2486975A1/en not_active Abandoned
- 2003-06-06 KR KR10-2004-7020148A patent/KR20050010887A/ko not_active Application Discontinuation
- 2003-06-06 EP EP03736064A patent/EP1512780B1/en not_active Expired - Lifetime
- 2003-06-06 CN CNB038134756A patent/CN100445446C/zh not_active Expired - Lifetime
- 2003-06-06 WO PCT/JP2003/007179 patent/WO2003104536A1/ja active Application Filing
-
2004
- 2004-11-30 US US10/998,919 patent/US7080500B2/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5584432A (en) * | 1978-12-20 | 1980-06-25 | Toyo Boseki | Production of weft yarn for tire reinforcing fabric |
JPS6171204A (ja) * | 1984-09-13 | 1986-04-12 | Bridgestone Corp | 空気入りラジアルタイヤのカ−カス用プライ |
EP0329593A1 (en) * | 1988-02-17 | 1989-08-23 | The Goodyear Tire & Rubber Company | Cables and tires reinforced by said cables |
JPH0976707A (ja) * | 1995-09-13 | 1997-03-25 | Bridgestone Corp | 空気入りタイヤ |
JPH10297210A (ja) * | 1997-04-30 | 1998-11-10 | Bridgestone Corp | 空気入りラジアルタイヤ |
JP2003041447A (ja) * | 2001-07-24 | 2003-02-13 | Teijin Ltd | ハイブリッドコード及びゴム補強物 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1512780A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1616993A4 (en) * | 2003-04-09 | 2007-08-01 | Nippon Sheet Glass Co Ltd | REINFORCING STRING FOR REINFORCING RUBBER AND RUBBER PRODUCT USING THE SAME |
Also Published As
Publication number | Publication date |
---|---|
EP1512780A1 (en) | 2005-03-09 |
US7080500B2 (en) | 2006-07-25 |
JP2004011076A (ja) | 2004-01-15 |
US20050091960A1 (en) | 2005-05-05 |
CN1659322A (zh) | 2005-08-24 |
JP4018460B2 (ja) | 2007-12-05 |
KR20050010887A (ko) | 2005-01-28 |
CN100445446C (zh) | 2008-12-24 |
EP1512780B1 (en) | 2011-08-17 |
CA2486975A1 (en) | 2003-12-18 |
EP1512780A4 (en) | 2010-04-07 |
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