JP6717877B2 - Vリブドベルト及びその製造方法 - Google Patents
Vリブドベルト及びその製造方法 Download PDFInfo
- Publication number
- JP6717877B2 JP6717877B2 JP2018097341A JP2018097341A JP6717877B2 JP 6717877 B2 JP6717877 B2 JP 6717877B2 JP 2018097341 A JP2018097341 A JP 2018097341A JP 2018097341 A JP2018097341 A JP 2018097341A JP 6717877 B2 JP6717877 B2 JP 6717877B2
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- JP
- Japan
- Prior art keywords
- yarn
- knitted fabric
- ribbed belt
- weft
- knitted
- 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.)
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Classifications
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- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
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- F16G5/06—V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
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- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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Description
前記緯編多層編布は、セルロース系天然紡績糸、ポリエステル系複合糸、及び、ポリアミド系の糸を含み、少なくとも前記セルロース系天然紡績糸と前記ポリアミド系の糸とが、前記摩擦伝動面側の層に配されていることを特徴としている。
また、摩擦伝動面を被覆する編布を緯編にすることにより伸縮性を高めているので、金型でベルトにV形状のリブ部を形成するVリブドベルトの製造過程において、リブ部の形状不良を発生しにくくすることができる。また、編布を多層構造にすることで、Vリブドベルトの構成要素であるゴムの編布を介した摩擦伝動面側への滲み出しが抑制され、摩擦伝動面のドライ状態での摩擦係数とウェット状態での摩擦係数の差を小さくすることができるので、耐注水発音性を高めることができる。
また、吸水性の高いセルロース系天然紡績糸をVリブドベルトの摩擦伝動面側の層に配することで、プーリとVリブドベルトとの間に浸入した水を素早く吸収して摩擦係数を安定化(ウェット状態での摩擦係数の低下を抑制)することができるので、耐注水発音性を高めることができる。さらに、耐摩耗性の高いポリアミド系の糸を摩擦伝動面側の層に配することで、セルロース系天然紡績糸が摩耗するのを抑制することができ、耐注水発音性を長期間に亘って保持することができる。
当該ゴムの摩擦伝動面側に前記緯編多層編布が被覆されており、
前記緯編多層編布から摩擦伝動面への前記ゴムの滲み出しが無いことを特徴としてもよい。
前記緯編多層編布の両端をジョイントした筒状の当該緯編多層編布を未加硫の圧縮層用シートに被せる、又は、未加硫の圧縮層用シートの上で前記緯編多層編布の両端をジョイントする、ことを特徴としてもよい。
図2に示すように、Vリブドベルト1は、外周側のベルト背面を形成する伸張層3と、伸張層3の内周側に設けられた圧縮層4と、伸張層3と圧縮層4との間に埋設されたベルト周長方向に延びる心線5とを備え、圧縮層4にベルト周長方向に延びる複数のV字状リブ部2が形成され、摩擦伝動面となるリブ部2の表面が編布6で被覆されている。伸張層3と圧縮層4とは、後述するように、いずれもゴム組成物で形成されている。なお、必要に応じて、伸張層3と圧縮層4との間に接着層を設けてもよい。この接着層は、心線5の伸張層3及び圧縮層4との接着性を向上させる目的で設けられるが、必須のものではない。接着層の形態としては、接着層に心線5全体を埋設する形態でもよく、接着層と伸張層3との間又は、接着層と圧縮層4との間に心線5を埋設する形態でもよい。
以下に、図4に基づいてVリブドベルト1の製造方法を説明する。まず、図4の(a)に示すように、外周面に可撓性ジャケット51を装着した筒状の内型52に、未加硫の伸張層用シート3Sを巻き付けて、この上に心線5を螺旋状にスピニングし、さらにその上に未加硫の圧縮層用シート4Sと編布6とを順次巻き付けて(被せて)、成形体10を作成する。この後、内周面に複数のリブ型53aを刻設した外型53の内周側に、成形体10を巻き付けた内型52を同心状にセットする。このとき、外型53の内周面と成形体10の外周面との間には所定の間隙が設けられる。
ゴム滲み出し観察試験では、マイクロスコープにてVリブドベルト1の摩擦伝動面を20倍に拡大して撮影し、画像解析ソフトを用いてゴムが摩擦伝動面に露出している面積割合を計算した。任意の5箇所を測定した平均値より、ゴムが摩擦伝動面に露出している面積割合が5%未満である場合はゴム滲み出しが「無し」、5%以上である場合はゴム滲み出しが「有り」と判断した。
摩擦係数測定試験は、図5に示すように、直径121.6mmの駆動プーリ(Dr.)、直径76.2mmのアイドラープーリ(IDL.1)、直径61.0mmのアイドラープーリ(IDL.2)、直径76.2mmのアイドラープーリ(IDL.3)、直径77.0mmのアイドラープーリ(IDL.4)、直径121.6mmの従動プーリ(Dn.)を配置した試験機を用い、これらの各プーリにVリブドベルト1を掛架して行った。
μ=ln(T1/T2)/α (1)
ここに、T1は張り側張力、T2は緩み側張力である。
従動プーリ(Dn.)入側の緩み側張力T2は一定荷重(180N/6rib)と等しくなり、出側の張り側張力T1は、この一定荷重に従動プーリ(Dn.)のトルクによる張力を加えたものとなる。
ミスアライメント発音評価試験は、図6に示すように、直径90mmの駆動プーリ(Dr.)、直径70mmのアイドラープーリ(IDL.1)、直径120mmのミスアライメントプーリ(W/P)、直径80mmのテンションプーリ(Ten.)、直径70mmのアイドラープーリ(IDL.2)、直径80mmのアイドラープーリ(IDL.3)を配置した試験機を用い、アイドラープーリ(IDL.1)とミスアライメントプーリ(W/P)の軸間スパンを135mmに設定し、全てのプーリが同一平面上(ミスアライメントの角度0°)に位置するように調整した。
耐摩耗性試験では、図示は省略するが、直径120mmの駆動プーリ(Dr.)、直径75mmのアイドラープーリ(IDL.1)、直径60mmのテンションプーリ(Ten.)、直径120mmの従動プーリ(Dn.)を順に配置した試験機を用いた。これらの各プーリにVリブドベルト1を掛架し、120℃の雰囲気下で、駆動プーリ(Dr.)の回転数を4900rpmとし、初荷重としてテンションプーリ(Ten.)に890Nの軸荷重を負荷して、200時間走行させた試験前後のベルト質量を測定し、(2)式を用いて摩耗率を求めた。
摩耗率=(試験前質量−試験後質量)/試験前質量×100(%) (2)
なお、摩耗率は低い値ほど、耐摩耗性が優れていることを示す。
作製した実施例1〜5、及び、比較例1〜4に係るVリブドベルトをベルト幅方向に切断し、その断面をマイクロスコープによって撮影して摩擦伝動面を被覆する編布6の平均厚みを測定した。
・PTT/PETコンジュゲート糸:東レ(株)製、84dtex
・ナイロンフィラメント糸:東レ(株)製、ナイロン66、110dtex
・アラミドフィラメント糸:帝人(株)製、テクノーラ、110dtex
編布6にセルロース系天然紡績糸(A)、ポリエステル系複合糸(B)、及びポリアミド系の糸(C)を含み、セルロース系天然紡績糸(A)とポリアミド系の糸(C)とが摩擦伝動面側の層に配された実施例1〜5では、ゴムの摩擦伝動面への滲み出しがなく、ドライ状態での摩擦係数とウェット状態での摩擦係数との差Δμが小さく、耐注水発音性が高かった。さらに、200h耐久後摩耗率が低く、耐摩耗性にも優れていた。
2 リブ部
3 伸張層
4 圧縮層
5 心線
6 編布
10 成形体
21 駆動プーリ
22 従動プーリ
23 V字状溝
51 可撓性ジャケット
52 内型
53 外型
53a リブ型
Claims (13)
- 少なくとも2層以上の編布で構成された、緯編多層編布によって被覆された圧縮層を有するVリブドベルトであって、
前記緯編多層編布は、少なくともセルロース系天然紡績糸、ポリエステル系複合糸、及び、ポリアミド系の糸を含む3種類以上の糸で編成され、前記緯編多層編布の摩擦伝動面側の層は、少なくとも前記セルロース系天然紡績糸と前記ポリアミド系の糸とが配されていることを特徴とするVリブドベルト。 - 前記緯編多層編布において、前記ポリアミド系の糸の含有量が5〜60質量%であることを特徴とする請求項1に記載のVリブドベルト。
- 前記緯編多層編布において、前記セルロース系天然紡績糸の含有量が5〜60質量%であることを特徴とする請求項1又は2に記載のVリブドベルト。
- 前記緯編多層編布において、前記ポリアミド系の糸とセルロース系天然紡績糸との質量比が、(ポリアミド系の糸:セルロース系天然紡績糸)=5:95〜95:5であることを特徴とする請求項1又は2に記載のVリブドベルト。
- 前記緯編多層編布に含まれる前記ポリエステル系複合糸は、熱収縮率の異なる2種類以上のポリマーからなる嵩高加工糸であることを特徴とする請求項1〜4の何れか一項に記載のVリブドベルト。
- 前記緯編多層編布に含まれる前記ポリエステル系複合糸は、ポリエチレンテレフタレート(PET)を含むコンジュゲート糸であることを特徴とする請求項1〜5の何れか一項に記載のVリブドベルト。
- 前記緯編多層編布に含まれる前記ポリアミド系の糸は、ナイロン、又は、アラミド繊維を含むことを特徴とする請求項1〜6の何れか一項に記載のVリブドベルト。
- 前記緯編多層編布を構成する糸は、各々フィラメントやファイバを撚り合わせていることを特徴とする請求項1〜7の何れか一項に記載のVリブドベルト。
- 前記緯編多層編布は、ポリウレタンを含まないことを特徴とする請求項1〜8の何れか一項に記載のVリブドベルト。
- 前記緯編多層編布の厚みは、0.6mm以上であることを特徴とする請求項1〜9の何れか一項に記載のVリブドベルト。
- 前記緯編多層編布の摩擦伝動面側の層において、前記セルロース系天然紡績糸とポリアミド系の糸とが一様に分散するように配置されていることを特徴とする請求項1〜10の何れか一項に記載のVリブドベルト。
- 前記圧縮層は、ゴムを構成要素として含み、
前記緯編多層編布から前記ゴムの滲み出しが無いことを特徴とする請求項1〜11の何れか一項に記載のVリブドベルト。 - 請求項1〜12の何れか一項に記載のVリブドベルトの製造方法であって、
前記緯編多層編布の両端をジョイントした筒状の当該緯編多層編布を未加硫の圧縮層用シートに被せる、又は、未加硫の圧縮層用シートの上で前記緯編多層編布の両端をジョイントする、ことを特徴とするVリブドベルトの製造方法。
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| CN201880033319.0A CN110651137B (zh) | 2017-05-24 | 2018-05-23 | 多楔带及其制造方法 |
| KR1020197034408A KR102239997B1 (ko) | 2017-05-24 | 2018-05-23 | V리브드 벨트 및 그의 제조 방법 |
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| JP6690047B1 (ja) | 2018-12-06 | 2020-04-28 | 三ツ星ベルト株式会社 | 摩擦伝動ベルト及びその製造方法 |
| EP3667118B1 (de) * | 2018-12-14 | 2020-12-30 | Arnold Jäger Holding GmbH | Riemen als endloses zugmittel sowie verfahren zum herstellen eines solchen riemens |
| JP7323560B2 (ja) * | 2021-01-29 | 2023-08-08 | バンドー化学株式会社 | 摩擦伝動ベルト |
| JP7722839B2 (ja) * | 2021-04-30 | 2025-08-13 | バンドー化学株式会社 | 摩擦伝動ベルト |
| KR20250142396A (ko) * | 2023-02-02 | 2025-09-30 | 게이츠 코포레이션 | 다층 보강 벨트 |
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| US3964328A (en) | 1973-09-07 | 1976-06-22 | The Gates Rubber Company | Elastomer-free fabric surface for power transmission belt tooth facing |
| US4305714A (en) * | 1980-05-23 | 1981-12-15 | Dayco Corporation | Heavy duty laminated cogged belt |
| JPS599239A (ja) | 1982-07-05 | 1984-01-18 | 三ツ星ベルト株式会社 | ベルト用織物 |
| JPH0333536A (ja) | 1989-06-27 | 1991-02-13 | Bando Chem Ind Ltd | 伝動ベルト及びその製造方法 |
| WO1998045617A1 (fr) | 1997-04-07 | 1998-10-15 | Ashimori Industry Co., Ltd. | Courroie dentee |
| US8197372B2 (en) | 2006-04-07 | 2012-06-12 | The Gates Corporation | Power transmission belt |
| US7749120B2 (en) * | 2006-11-03 | 2010-07-06 | Dayco Products, Llc | Power transmission belt |
| DE102007042917B4 (de) * | 2007-09-08 | 2020-06-18 | Contitech Antriebssysteme Gmbh | Biegeelastischer Antriebsriemen, oder Keilrippenriemen, mit einer Textilauflage auf seiner verschleißanfälligen Arbeitsseite |
| MX2010002689A (es) | 2007-09-14 | 2010-04-01 | Gates Corp | Banda en v con costillas y metodo para fabricarla. |
| JP2010053935A (ja) * | 2008-08-27 | 2010-03-11 | Bando Chem Ind Ltd | Vリブドベルト |
| JP5302074B2 (ja) * | 2009-04-03 | 2013-10-02 | バンドー化学株式会社 | Vリブドベルト及びその製造方法 |
| DE102012105510A1 (de) * | 2012-06-25 | 2014-02-20 | Contitech Antriebssysteme Gmbh | Artikel, insbesondere Antriebsriemen, mit einer Textilauflage |
| JP5997712B2 (ja) * | 2013-01-30 | 2016-09-28 | 三ツ星ベルト株式会社 | 摩擦伝動ベルト |
| JP6023736B2 (ja) | 2013-03-29 | 2016-11-09 | 三ツ星ベルト株式会社 | Vリブドベルト |
| JP6198354B2 (ja) * | 2013-03-29 | 2017-09-20 | 三ツ星ベルト株式会社 | Vリブドベルト |
| JP6527433B2 (ja) | 2014-09-26 | 2019-06-05 | 三ツ星ベルト株式会社 | 摩擦伝動ベルト及びその製造方法 |
| US11028900B2 (en) * | 2017-12-13 | 2021-06-08 | Gates Corporation | Banded friction power transmission belt |
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| EP3633232B1 (en) | 2021-10-20 |
| JP2018197605A (ja) | 2018-12-13 |
| TWI695133B (zh) | 2020-06-01 |
| US20200173523A1 (en) | 2020-06-04 |
| KR102239997B1 (ko) | 2021-04-13 |
| US11913522B2 (en) | 2024-02-27 |
| KR20190137910A (ko) | 2019-12-11 |
| TW201901060A (zh) | 2019-01-01 |
| EP3633232A1 (en) | 2020-04-08 |
| EP3633232A4 (en) | 2021-02-24 |
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