WO1998045617A1 - Toothed belt - Google Patents
Toothed belt Download PDFInfo
- Publication number
- WO1998045617A1 WO1998045617A1 PCT/JP1998/001588 JP9801588W WO9845617A1 WO 1998045617 A1 WO1998045617 A1 WO 1998045617A1 JP 9801588 W JP9801588 W JP 9801588W WO 9845617 A1 WO9845617 A1 WO 9845617A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- yarn
- toothed belt
- false
- yarns
- twisted
- 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.)
- Ceased
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0094—Belts
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
- F16G1/28—Driving-belts with a contact surface of special shape, e.g. toothed
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/12—Vehicles
Definitions
- the present invention relates to a toothed belt, and more particularly to an improvement of a base belt in a toothed belt in which a base cloth is adhered to a joint surface thereof.
- the present invention relates to an improved woven fabric used as a base fabric for a toothed belt.
- a toothed belt having a base fabric for surface protection adhered to the mating surface is described in Japanese Utility Model Laid-Open No. 62-204509, etc.
- a crimped synthetic fiber yarn is used as the weft yarn extending in the belt length direction.
- a toothed belt has a base cloth 2, a tensile member 3, and an unvulcanized rubber 4 placed on a mold 1 having an uneven surface, and is heated and pressurized.
- the vulcanized rubber 4 is molded by vulcanization, and as shown in FIG. 3, the belt teeth 6 are formed on the joint surface 5 along the concave portion of the mold 1.
- the base fabric 2 must be stretched from a substantially flat state to a state along the irregularities of the mold 1 at the time of molding, and can expand by several tens% with a low load. Is required. Therefore, as the weft yarn extending in the length direction of the toothed belt in the base fabric 2, a crimped yarn of synthetic fiber is used, and the crimp is extended so that the weft can be easily extended.
- a double-twisted double-sided twill structure is woven, and false-twisted yarns having different false-twisting directions are used so that the exposed state of the yarns on both sides is uniform.
- the aligned yarn was used as the weft.
- a toothed belt is wound around a pulley and driven to rotate at high speed.
- the fabric may peel off, and sufficient durability is required.
- power is transmitted by the meshing of the tooth profile of the toothed belt and the tooth profile of the burry, so that the tooth surfaces collide when the tooth profiles mesh with each other, and the rotating tooth surface. Sound due to the friction of the toothed belt and the friction when the toothed belt separates from the pulley, Furthermore, when the tooth profile is engaged or disengaged, an air flow is rapidly generated, which causes noise and makes it feel noisy.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a toothed belt that is superior in durability to conventional ones and that generates less noise during driving.
- the inventor of the present invention has conducted intensive researches to achieve such an object, and has developed a woven fabric formed by weaving yarns composed of a plurality of false twisted yarns in which the yarns are false twisted in the same false twist direction as weft yarns. It has been found that the above-mentioned problems can be solved at once by using it as a base fabric for a belt with a belt, and the present invention has been completed.
- the present invention provides a toothed belt to which a base cloth is adhered along a mating surface, wherein a plurality of yarns extending in the length direction of the toothed belt of the base cloth are false twisted in the same false twist direction.
- a base cloth is formed by weaving the yarn and the yarn intersecting with the yarn in a double-sided twill weave structure to form a base fabric, and the surface of the base fabric on which the false twist processed yarn is less exposed is formed on the surface.
- the present invention relates to a toothed belt characterized in that the belt is attached to a joint surface so as to be exposed.
- the present invention provides a woven fabric having a weft thread extending in the length direction of the toothed belt adhered along the mating surface of the toothed belt, wherein a plurality of false twists are false twisted in the same false twist direction.
- the present invention also relates to the above-mentioned woven fabric, characterized in that the exposed state of the yarn is different between the front and back surfaces obtained by weaving the yarn consisting of the yarn and the yarn intersecting with the yarn with a double-sided twill weave.
- the woven fabric of the present invention is a woven fabric in which the exposed state of the yarn is different on the front and back surfaces. On one surface, the fibers crimped by false twisting are unevenly exposed, contributing to the improvement of the adhesive strength with rubber. On the other side, although the exposed amount of the crimped fiber is small, a clear twill line with irregularities appears, contributing to a reduction in noise when contacting with the bouley.
- the yarn extending in the length direction of the toothed belt may be a plurality of false-twisted yarns that are false-twisted in the same false-twisting direction.
- the temporary twisted yarn Either a yarn twisted in the same direction as the burning direction or a yarn twisted in the opposite direction to the false twist direction may be used, but the yarn is twisted in the opposite direction to the false twist direction of the false twisted yarn.
- the obtained yarn is more preferable because the fiber is crimped more violently by the untwisting of the false twist and becomes bulky.
- the base fabric is formed into a tubular shape by sewing or the like with a woven fabric woven by a warp made of a normal synthetic fiber and a weft made of the crimped yarn, and this is fitted to the mold 1.
- a toothed belt is molded. Therefore, in this specification, the terms "warp yarn” and "weft yarn” refer to a yarn extending in the length direction of the toothed belt as a "weft yarn” and a yarn extending in a direction intersecting with the yarn as a "warp yarn”.
- the warp and the weft in the weaving technique at the time of weaving the base fabric do not always coincide with each other, and may be reversed.
- FIG. 1 is a perspective view of a toothed belt of the present invention.
- FIG. 2 is a longitudinal sectional view showing a preparation stage for molding the toothed belt of the present invention.
- FIG. 3 is a longitudinal sectional view showing a state where the toothed belt of the present invention is molded.
- FIG. 4 Perspective view of a running durability tester for a toothed belt.
- Fig. 5a is a photograph of the surface shape of the pulley side of the base fabric of Example 1.
- FIG. 6a is a photograph of the surface shape of one side of the pulley of the base fabric of Example 2.
- Fig. 6b A photograph of the rubber-side surface shape of the base fabric of Example 2.
- Fig. 7a Photograph of the surface of one side of the pulley of the conventional base cloth described in the background art.
- Fig. 7b Photograph of the rubber-side surface shape of the conventional base cloth described in the background art.
- FIG. 1 shows a toothed belt of the present invention, in which a tensile member 3 is embedded in a rubber 4, belt teeth 6 are formed on one surface thereof, and a base fabric 2 is adhered to a joint surface 5 thereof.
- the weft yarn in the base fabric 2 of the toothed belt is made of synthetic fiber such as napkin and is made up of a plurality of false twisted yarns which are temporarily burned in the same false twist direction.
- the yarns may be simply aligned and used, or a yarn twisted in the same direction as the temporary burning direction of the false twisted yarn may be used.
- As the warp yarn a normal synthetic fiber yarn such as nylon or a yarn obtained by appropriately twisting the yarn is used. .
- the false twisted yarn constituting the weft tends to be biased and exposed on one side of the base fabric 2.
- the false twist direction of the false twisted yarn is S burning
- the twill in the twill weave structure of the base fabric 2 is more exposed on the upper right surface, and conversely, the false twist is Z burning.
- the trabeculae tend to be more exposed on the surface going up to the left.
- the double-sided twill weave has the same structure on both sides except the direction of the twill, and both the warp and weft yarns are evenly exposed on the front and back. Therefore, there is no concept of a surface where a large amount of weft yarn is exposed.However, when a yarn obtained by ply-twisting false-twisted yarns having the same false-twist direction as in the present invention is used as the weft yarn, The false-twisted yarn is biased and exposed on one surface of the base fabric 2, the fibers crimped by the preliminary combustion protrude unevenly on one surface of the base fabric 2, and the crimped fibers hardly protrude on the opposite surface. A clear twill line with irregularities appears, and the front and back have a distinctly different appearance.
- FIGS. 5 a and 5 b (Example 1) and FIGS. 6 a and 6 b (Example 2) are photographs showing the shapes of the front and back surfaces of the base fabric of the toothed belt of the present invention. The difference between the front and back surfaces is clearly shown in each figure. That is, the crimped fiber protrudes on one surface (FIGS. 5b and 6b), and the crimped fiber hardly protrudes on the other surface (FIGS. 5a and 6a), and has irregularities. A clear twill appears. In Example 1, the tendency is more remarkable. On the other hand, Fig. 7a and Fig.
- the base fabric in the present invention is in the above-mentioned state, since the temporary burning direction of the false twisted yarn constituting the weft is only one direction, the torque for returning to the temporary burning direction is not sufficient. It is considered that the false twisted yarn is exposed only on one surface of the base fabric 2 based on the relationship between the force generated there and the arrangement of the warp and weft yarns, etc.
- the surface of the base cloth 2 where the calcined yarn is more exposed is arranged so as to contact the rubber 4, and the false twisted yarn is formed. Adhere so that the less exposed surface is exposed on the surface of the joint surface 5.
- the same method as described with reference to FIGS. 2 and 3 can be used.
- the weft constituting the base fabric 2 a plurality of false twisted yarns that are false twisted in the same false twist direction are aligned, or a combustible yarn is used. Since the base fabric 2 is formed by weaving with a warp yarn in a double-sided twill weave structure, the temporarily combusted yarn constituting the weft yarn is unbalancedly exposed on one side as described above, and many crimped fibers protrude on that surface. I do. Then, the exposed surface of the false twisted yarn is bonded to the rubber 4 so that many crimped fibers are entangled with the rubber 4.
- the fiber is crimped more violently by the untwisting of the false twist and becomes bulky.
- the base fabric 2 and the rubber 4 are joined by a strong anchor effect, and the adhesive strength is improved, and the base fabric 2 does not come off from the bonding surface 5 due to bending, and the durability of the toothed belt is greatly improved. improves.
- the crimped fiber hardly protrudes, and a clear twill appears and irregularities are formed. Therefore, the unevenness of the base cloth 2 appears as it is on the mating surface 5 of the toothed belt.
- the toothed belt separates from the pulley, the air is supplied through the unevenness, so that the noise at the time of the combined separation decreases.
- the base fabric 2 and the rubber 4 are joined by a strong
- the base fabric 2 does not peel off from the joint surface 5 due to bending, and the durability of the toothed belt is greatly improved.
- the noise generated between the teeth of the toothed belt and the teeth of the burley during driving is greatly reduced due to the unevenness formed on the mating surface of the toothed belt, and the motor is driven quietly. It becomes possible.
- the toothed belt according to the present invention is extremely useful in applications such as automobile engines that require durability and quietness.
- a 210 d / 35 f multifilament yarn of nylon 66 was used as the warp yarn of the base fabric.
- a base fabric was formed by weaving in a 2Z2 twill weave at a warp yarn density of 86 Zinch and a weft yarn density of 85 yarns / inch.
- this base fabric the false twisted yarn is exposed to one side of the base fabric, and a large number of crimped fibers protrude from the surface, and the crimped fiber hardly protrudes from the opposite surface. Clear irregularities appeared in the direction of the twill.
- the base fabric was treated with an adhesive, and the exposed surface of the false twisted yarn was placed in contact with the rubber to form a toothed belt with a tooth pitch of 9.525, a number of teeth of 92, and a width of 19 inches.
- a toothed belt was molded in the same manner as in the example except that the twist direction of the ply twist was changed to the S direction in the configuration of the weft yarn in the example.
- the toothed belt was molded by arranging the base fabric formed in the above-mentioned Example 1 upside down from the Example.
- Example 2 In the configuration of the weft yarn in the above embodiment, the same procedure as in Example 1 was carried out except that the provisional burning direction of the false twisted yarn was two in the s direction and two in the Z direction. The belt was molded.
- the toothed belts of the above Examples and Comparative Examples were tested for the adhesion between the base cloth 2 and the mating surface 5, the running durability of the toothed belt, and the noise level during running of the toothed belt.
- Adhesive strength With respect to the toothed belts of the examples and comparative examples, the base fabric 2 and the rubber 4 were peeled off in the length direction of the toothed belt using a shovel-type tensile tester, and the peeling strength was measured. did.
- Running durability The toothed belts of the examples and comparative examples were mounted on a test machine shown in FIG. 4 and driven, and the surface condition of the mating surfaces was observed to measure the durability of the toothed belt.
- the conditions for stopping the durable running were to stop with cracks or abnormal wear on the joint surface.
- the tester shown in Fig. 4 has a driving pulley 17 with 20 teeth, a driven pulley 8 with 40 teeth, and a force of ', 285 mm.
- a toothed belt 14 is stretched between pulleys 7 and 8, and a given tension is applied to the back of the toothed belt 14 by an idler pulley 9, while the driving pulley 7 It rotates at 0 0 ⁇ m.
- the tester is housed in a box 10 and blows hot air to heat the inside of the box 10 to 100 ° C. so that an accelerated test can be performed in a heated atmosphere.
- Noise level Attach a toothed belt to the firing engine so that the tension is 20 to 25 kgf, and install a sound level meter at 5 O mm in front of the pulley protruding part, and set the engine speed at 30 rpm. The noise was measured while driving at 00 rpm.
- Table 1 shows the test results.
- the toothed belt of the present invention (Examples 1 and 2) has excellent durability, low noise level, and can be driven quietly for a long time. can do.
- the conventional toothed belt has a low adhesive strength between the base fabric and rubber, and a small number of cracks are generated in a running test, but a large number of cracks are generated. Poor quality and high noise level. Further, even when the same base fabric as that of the present invention is used, when the front and back are reversed, as shown in Comparative Example 1, both the durability and the noise level are significantly inferior.
- a toothed belt excellent in both durability and noise level can be obtained by the configuration of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98911223A EP0905411B1 (en) | 1997-04-07 | 1998-04-07 | Toothed belt |
| JP54259498A JP4138020B2 (ja) | 1997-04-07 | 1998-04-07 | 歯付きベルト |
| CN98800440A CN1089871C (zh) | 1997-04-07 | 1998-04-07 | 齿形皮带 |
| US09/202,048 US6086500A (en) | 1997-04-07 | 1998-04-07 | Toothed belt |
| DE69817958T DE69817958T2 (de) | 1997-04-07 | 1998-04-07 | Zahnriemen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10518897 | 1997-04-07 | ||
| JP9/105188 | 1997-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998045617A1 true WO1998045617A1 (en) | 1998-10-15 |
Family
ID=14400710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1998/001588 Ceased WO1998045617A1 (en) | 1997-04-07 | 1998-04-07 | Toothed belt |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6086500A (ja) |
| EP (1) | EP0905411B1 (ja) |
| JP (1) | JP4138020B2 (ja) |
| CN (1) | CN1089871C (ja) |
| DE (1) | DE69817958T2 (ja) |
| WO (1) | WO1998045617A1 (ja) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60204373T2 (de) * | 2001-03-16 | 2006-05-04 | The Goodyear Tire & Rubber Co., Akron | Triebriemen mit geschnittenen Kohlenstofffasern |
| WO2002092894A1 (en) * | 2001-05-16 | 2002-11-21 | Asahi Kasei Kabushiki Kaisha | Woven fabric for toothed belt |
| BRPI0706940B1 (pt) * | 2006-01-19 | 2020-11-10 | Dayco Europe S.R.L | correia dentada e sistema de controle de tempo |
| DE102011053679A1 (de) * | 2011-09-16 | 2013-03-21 | Contitech Antriebssysteme Gmbh | Antriebsriemen, insbesondere Keilrippenriemen, mit einer Gewebeauflage |
| US9676593B2 (en) | 2012-07-13 | 2017-06-13 | Otis Elevator Company | Belt including fibers |
| EP3034906B1 (en) * | 2014-12-19 | 2021-06-30 | ContiTech Antriebssysteme GmbH | Belt comprising a textile covering |
| US9599189B2 (en) * | 2015-03-24 | 2017-03-21 | Highland Industries, Inc. | Warp stretch fabric and method |
| WO2017019618A1 (en) * | 2015-07-29 | 2017-02-02 | Gates Corporation | Synchronous belt with tough fabric |
| JP6909631B2 (ja) * | 2017-05-15 | 2021-07-28 | Nok株式会社 | 樹脂製ベルト |
| JP6717877B2 (ja) | 2017-05-24 | 2020-07-08 | 三ツ星ベルト株式会社 | Vリブドベルト及びその製造方法 |
| CN110651137B (zh) * | 2017-05-24 | 2022-01-07 | 三之星机带株式会社 | 多楔带及其制造方法 |
| US10704645B2 (en) * | 2017-12-13 | 2020-07-07 | Gates Corporation | Bias tooth fabric and toothed power transmission belt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62204059U (ja) | 1986-06-19 | 1987-12-26 | ||
| JPH06109076A (ja) * | 1992-09-24 | 1994-04-19 | Bando Chem Ind Ltd | ベルト |
| JPH07217704A (ja) * | 1994-02-04 | 1995-08-15 | Bando Chem Ind Ltd | 歯付ベルト |
| JPH08226495A (ja) * | 1995-02-21 | 1996-09-03 | Asahi Chem Ind Co Ltd | 歯付ベルト |
| JPH08312724A (ja) * | 1995-05-22 | 1996-11-26 | Bando Chem Ind Ltd | 歯付ベルト |
| JPH0932886A (ja) * | 1995-07-21 | 1997-02-04 | Bando Chem Ind Ltd | 歯付ベルト及びその製造方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219996A (en) * | 1977-08-23 | 1980-09-02 | Toray Industries, Inc. | Multi-component spun yarn |
| JPS57165237A (en) * | 1981-04-03 | 1982-10-12 | Hokushin Ind Inc | Manufacture of belt |
| JPS62204059A (ja) * | 1986-03-03 | 1987-09-08 | Honda Motor Co Ltd | 車両用自動変速機の流体式動力伝達装置の直結機構制御方法 |
| US5346731A (en) * | 1990-07-12 | 1994-09-13 | Bando Chemical Industries, Ltd. | Fiber-reinforced rubber |
| JP3261506B2 (ja) * | 1991-04-03 | 2002-03-04 | 株式会社オーパス | 液体中の気泡除去装置 |
| JPH0816292B2 (ja) * | 1992-03-23 | 1996-02-21 | 東レ株式会社 | 延伸仮撚方法及び延伸仮撚機 |
| JPH09100879A (ja) * | 1995-10-02 | 1997-04-15 | Ashimori Ind Co Ltd | 歯付きベルト |
| JPH09119483A (ja) * | 1995-10-25 | 1997-05-06 | Bando Chem Ind Ltd | 歯付ベルト |
| JP2828419B2 (ja) * | 1995-12-26 | 1998-11-25 | バンドー化学株式会社 | ベルト用抗張体および伝動ベルト |
| AT410243B (de) * | 1997-07-23 | 2003-03-25 | Tcg Unitech Ag | Mehrwegventil |
-
1998
- 1998-04-07 WO PCT/JP1998/001588 patent/WO1998045617A1/ja not_active Ceased
- 1998-04-07 CN CN98800440A patent/CN1089871C/zh not_active Expired - Fee Related
- 1998-04-07 US US09/202,048 patent/US6086500A/en not_active Expired - Lifetime
- 1998-04-07 EP EP98911223A patent/EP0905411B1/en not_active Expired - Lifetime
- 1998-04-07 JP JP54259498A patent/JP4138020B2/ja not_active Expired - Fee Related
- 1998-04-07 DE DE69817958T patent/DE69817958T2/de not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62204059U (ja) | 1986-06-19 | 1987-12-26 | ||
| US4826472A (en) | 1986-06-19 | 1989-05-02 | Ashimori Kogyo Kabushiki Kaisha | Toothed belt |
| EP0271587B1 (en) | 1986-06-19 | 1991-05-29 | Ashimori Kogyo Kabushiki Kaisha | Toothed belt |
| JPH06109076A (ja) * | 1992-09-24 | 1994-04-19 | Bando Chem Ind Ltd | ベルト |
| JPH07217704A (ja) * | 1994-02-04 | 1995-08-15 | Bando Chem Ind Ltd | 歯付ベルト |
| JPH08226495A (ja) * | 1995-02-21 | 1996-09-03 | Asahi Chem Ind Co Ltd | 歯付ベルト |
| JPH08312724A (ja) * | 1995-05-22 | 1996-11-26 | Bando Chem Ind Ltd | 歯付ベルト |
| JPH0932886A (ja) * | 1995-07-21 | 1997-02-04 | Bando Chem Ind Ltd | 歯付ベルト及びその製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0905411A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69817958D1 (de) | 2003-10-16 |
| DE69817958T2 (de) | 2004-07-15 |
| EP0905411A1 (en) | 1999-03-31 |
| JP4138020B2 (ja) | 2008-08-20 |
| EP0905411B1 (en) | 2003-09-10 |
| EP0905411A4 (en) | 1999-07-07 |
| US6086500A (en) | 2000-07-11 |
| CN1222959A (zh) | 1999-07-14 |
| CN1089871C (zh) | 2002-08-28 |
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