WO2024009663A1 - 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
- WO2024009663A1 WO2024009663A1 PCT/JP2023/020576 JP2023020576W WO2024009663A1 WO 2024009663 A1 WO2024009663 A1 WO 2024009663A1 JP 2023020576 W JP2023020576 W JP 2023020576W WO 2024009663 A1 WO2024009663 A1 WO 2024009663A1
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- WIPO (PCT)
- Prior art keywords
- ribbed belt
- cloth
- belt
- rubber
- covering portion
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- 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
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/04—V-belts, i.e. belts of tapered cross-section made of rubber
- F16G5/06—V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
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- 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
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/20—V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
Definitions
- the present invention relates to a V-ribbed belt and a method for manufacturing the same.
- a V-ribbed belt is known in which the surface on the V-rib side is covered with a covering cloth.
- Patent Document 1 discloses that both end sides of a cloth material serving as a covering cloth are joined by stitching to form a cylindrical shape.
- Patent Document 2 discloses that both end sides of a cloth material serving as a covering cloth are overlapped and joined by adhesive to form a cylindrical shape.
- the present invention provides a V-ribbed belt having a plurality of V-ribs provided to extend in parallel in the belt length direction, wherein the plurality of V-ribs are covered with a plurality of V-rib bodies formed of a rubber composition.
- the belt is covered with cloth, and the surface on the V-rib side includes a non-cloth covering portion sandwiched between the edges of the covering cloth and extending across the entire width of the belt.
- the sheet material for forming the non-fabric covering portion is joined between the edge portions of the cloth material serving as the covering cloth as a joining member, and the sheet material
- the step of manufacturing an uncrosslinked slab by laminating the cloth material whose end portions are joined together on an uncrosslinked rubber composition for forming the plurality of V rib bodies.
- FIG. 2 is a perspective view of one piece of the V-ribbed belt according to the embodiment.
- FIG. 2 is a plan view of a V-rib side of one piece of the V-ribbed belt according to the embodiment.
- FIG. 3 is a cross-sectional view of the crosslinking device.
- FIG. 3 is an enlarged cross-sectional view of a portion of the crosslinking device.
- FIG. 3 is a first explanatory diagram showing a method of joining cloth materials that become a covering cloth.
- FIG. 7 is a second explanatory diagram showing a method of joining cloth materials that become a covering cloth.
- FIG. 1 is a first explanatory diagram showing a method for manufacturing a V-ribbed belt according to an embodiment.
- FIG. 2 is a second explanatory diagram showing a method for manufacturing a V-ribbed belt according to an embodiment.
- FIG. 3 is a third explanatory diagram showing a method for manufacturing a V-ribbed belt according to an embodiment.
- FIG. 2 is a diagram showing a pulley layout of a belt running tester for evaluating crack resistance tests conducted under a room temperature atmosphere.
- V-ribbed belt B shows a V-ribbed belt B according to an embodiment.
- the V-ribbed belt B according to the embodiment is, for example, a rubber friction transmission belt used in an auxiliary drive belt transmission device installed in an engine room of an automobile.
- the V-ribbed belt B includes a belt main body 10 composed of three layers: a compressed rubber layer 11 on the inner circumferential side, an intermediate adhesive rubber layer 12, and a stretchable rubber layer 13 on the outer circumferential side.
- the compressed rubber layer 11 is formed into a band shape with a comb-shaped cross section.
- the compressed rubber layer 11 is provided with a plurality of V-rib bodies 11a, each of which is composed of protrusions having a substantially inverted triangular cross section, hanging down toward the inner circumferential side and extending in parallel to the belt length direction.
- the adhesive rubber layer 12 and the stretchable rubber layer 13 are each formed in the shape of a belt with a horizontally long rectangular cross section. Note that a back reinforcement cloth may be provided instead of the stretchable rubber layer 13.
- the compressed rubber layer 11 including a plurality of V-rib bodies 11a is made by heating and pressurizing an uncrosslinked rubber composition in which various rubber compounding agents including a crosslinking agent are mixed and kneaded into a rubber component, so that the rubber component is crosslinked. It is made of rubber composition.
- Examples of rubber components include ethylene- ⁇ -olefin elastomers such as ethylene-propylene-diene terpolymer (EPDM), ethylene-propylene copolymer (EPM), ethylene-butene copolymer (EDM), and ethylene-octene copolymer (EOM); Examples include synthetic rubbers such as chloroprene rubber (CR); chlorosulfonated polyethylene rubber (CSM); and hydrogenated acrylonitrile rubber (H-NBR).
- the rubber component is preferably a blended rubber of one or more of these, more preferably contains an ethylene- ⁇ -olefin elastomer, and preferably contains EPDM from the viewpoint of obtaining excellent low-temperature properties. More preferred.
- Crosslinking agents include sulfur and organic peroxides.
- rubber compounding agents other than the crosslinking agent include reinforcing materials such as carbon black, fillers, anti-aging agents, softeners, vulcanization accelerators, vulcanization accelerators, and the like.
- the adhesive rubber layer 12 and the stretchable rubber layer 13 are also formed of a rubber composition. Note that the compressed rubber layer 11, the adhesive rubber layer 12, and the stretchable rubber layer 13 may be formed of the same rubber composition or may be formed of different rubber compositions.
- the V-ribbed belt B has a plurality of V-ribs 14 provided so as to extend in parallel in the belt length direction.
- the number of V ribs 14 is, for example, three to six (six in FIGS. 1A and B). These plurality of V-ribs 14 are constructed by covering a plurality of V-rib bodies 11a of the compressed rubber layer 11 with a covering cloth 15.
- the covering cloth 15 is made of a woven fabric, knitted fabric, or non-woven fabric.
- the fiber material forming the covering cloth 15 include cellulose fibers such as cotton, natural fibers such as wool and silk; aliphatic polyamide fibers, aromatic polyamide fibers, polyester fibers, acrylic fibers, polyvinyl alcohol fibers, and polyurethane threads. Synthetic fibers such as The covering cloth 15 may be formed of a blended yarn or a blended twisted yarn using a plurality of fiber materials.
- the cloth material serving as the covering cloth 15 may be subjected to an adhesive treatment to impart adhesiveness to the V-rib main body 11a.
- the adhesion treatment include an adhesion treatment in which the cloth material that will become the covering cloth 15 is immersed in an epoxy solution or an isocyanate solution, pulled up, and then heated; an adhesive treatment in which the cloth material is immersed in an RFL aqueous solution, pulled up, and then heated; Examples include an adhesive treatment in which the material is dipped in a low-viscosity rubber paste, pulled up, and then dried, and an adhesive treatment in which a high-viscosity rubber paste is coated on the surface of the cloth material on the V-rib body 11a side and then dried.
- the end sides of the covering cloth 15 are not joined, and the surface on the V rib 14 side, which is the power transmission surface, is sandwiched between the end sides of the covering cloth 15, and the entire width of the belt is
- the belt includes a non-fabric covering portion 16 provided to extend straight across the width direction of the belt.
- the non-fabric covering portion 16 is composed of a polymer layer that covers the V-rib main body 11a.
- the polymer layer constituting the non-cloth covering portion 16 is made of a polymer material.
- the polymeric material forming the non-fabric covering portion 16 may be a crosslinked material.
- a polymer material for the crosslinked material an uncrosslinked rubber composition in which a rubber component is mixed with various rubber compounding agents including a crosslinking agent and kneaded is heated and pressurized to crosslink the rubber component. Rubber compositions may be mentioned.
- the rubber composition forming the non-fabric covering part 16 is a rubber composition and a rubber component forming the compressed rubber layer 11 including a plurality of V-rib main bodies 11a. are preferably the same, and more preferably the same rubber composition as the rubber composition forming the compressed rubber layer 11.
- the polymer material forming the non-fabric covering portion 16 may be an uncrosslinked thermoplastic material.
- uncrosslinked thermoplastic polymer materials include uncrosslinked EPDM, uncrosslinked 1,2-polybutadiene, polyethylene, ethylene vinyl acetate copolymer (EVA), and compositions using these as base polymers. can be mentioned.
- EVA ethylene vinyl acetate copolymer
- the non-fabric covering portion 16 is formed only from the EPDM polymer, it does not contain any compounding agents, so it has excellent processability and can slow deterioration during storage.
- the dimension L of the non-fabric covering portion 16 in the belt length direction may be 0.5 ⁇ m or more, 1 mm or more, or 3 mm or more.
- the dimension L of the non-fabric covering portion 16 in the belt length direction is preferably 60 mm or less, more preferably 50 mm or less, still more preferably 10 mm or less, and even more preferably is 5 mm or less. It is preferable that the dimension L of the non-fabric covering portion 16 in the belt length direction is uniform along the belt width direction.
- Such a non-fabric covering portion 16 may be provided at only one location in the belt length direction, or may be provided at multiple locations in the belt length direction.
- a core wire 17 arranged to form a spiral with a pitch in the belt width direction is embedded in the middle part of the adhesive rubber layer 12 in the belt thickness direction.
- the core wire 17 is made of, for example, twisted yarn.
- the fiber material forming the core wire 17 include polyamide fibers, polyester fibers, aramid fibers, and the like. It is preferable that the twisted yarn serving as the core wire 17 is subjected to an adhesive treatment to impart adhesiveness to the adhesive rubber layer 12.
- the adhesion treatment includes an adhesion treatment in which the twisted yarn that will become the core wire 17 is immersed in an epoxy resin solution or an isocyanate resin solution and then heated, an adhesive treatment in which the twisted yarn is immersed in an RFL aqueous solution and then heated, and an adhesive treatment in which the twisted yarn is immersed in rubber glue and then heated.
- An example is an adhesive treatment that involves drying.
- FIGS. 2A and 2B show a crosslinking device 20 used for manufacturing the V-ribbed belt B according to the embodiment.
- This crosslinking device 20 includes a base 21, a cylindrical expansion drum 22 erected thereon, and a cylindrical mold 23 provided outside the base 21.
- the expansion drum 22 has a drum main body 22a formed in the shape of a hollow cylinder, and a cylindrical rubber expansion sleeve 22b fitted around the outer periphery of the drum main body 22a.
- a large number of ventilation holes 22c are formed in the outer circumference of the drum body 22a, each communicating with the inside. Both ends of the expansion sleeve 22b are sealed with the drum body 22a by fixing rings 24 and 25, respectively.
- the crosslinking device 20 is provided with a pressurizing means (not shown) that introduces and pressurizes high-pressure air into the drum body 22a, and this pressurizing means introduces high-pressure air into the drum body 22a. Then, high-pressure air enters between the drum body 22a and the expansion sleeve 22b through the ventilation hole 22c and expands the expansion sleeve 22b radially outward.
- the cylindrical mold 23 is removable from the base 21.
- the cylindrical mold 23 attached to the base 21 is provided concentrically with the expansion drum 22 with a space therebetween.
- the cylindrical mold 23 has a plurality of circumferentially extending V-rib forming grooves 23a connected in the axial direction (groove width direction) on the inner circumferential surface thereof.
- the crosslinking device 20 is provided with heating means and cooling means (both not shown) for the cylindrical mold 23, and the temperature of the cylindrical mold 23 can be controlled by these heating means and cooling means.
- each member is prepared.
- Each rubber compounding agent including a crosslinking agent is blended with the rubber component, and after kneading with a kneader such as a kneader or a Banbury mixer, it is processed into a sheet having the same cross-sectional shape as the compressed rubber layer 11. In this way, a rubber sheet of an uncrosslinked rubber composition for forming the compressed rubber layer 11 including a plurality of V-rib bodies is produced.
- a kneader such as a kneader or a Banbury mixer
- Each rubber compounding agent including a crosslinking agent is blended with the rubber component, kneaded with a kneader such as a kneader or a Banbury mixer, and then processed into a thin sheet. In this way, a rubber sheet of an uncrosslinked rubber composition for forming the adhesive rubber layer 12 and the stretchable rubber layer 13 is produced.
- a kneader such as a kneader or a Banbury mixer
- a long and narrow sheet material for forming the non-cloth covering portion 16 is joined between the edges of the cloth material as a joining member to form a cylindrical shape. do. Specifically, as shown in FIG. 3A, one long side of the sheet material 16' is superimposed on the inner side of one end side of the cloth material 15' that is on the belt main body 10 side, and the cloth material 15 is The other long side of the sheet material 16' is superimposed on the inside of the other end of the sheet material 16', and as shown in FIG. 3B, the cloth material 15' and the sheet material 16' are Processed into a cylindrical shape by pressing and joining.
- the sheet material 16' is a thermoplastic material sheet when the polymer material forming the non-cloth covering section 16 is an uncrosslinked thermoplastic material, and when the polymer material forming the non-cloth covering section 16 is a rubber composition. , an uncrosslinked rubber composition sheet. Note that at this stage, both end sides of the cloth material 15' may have a gap between them, or may be butted against each other without having a gap between them. Further, the twisted yarn that will become the core wire 17 is subjected to a predetermined adhesive treatment.
- a rubber sleeve 27 is placed on the cylindrical drum 26 having a smooth surface, and a rubber sheet 13' for forming a stretch rubber layer and a rubber sheet 12 for forming an adhesive rubber layer are placed on top of the rubber sleeve 27.
- the rubber sleeve 27 provided with the uncrosslinked slab S' is removed from the cylindrical drum 26, and as shown in FIG. After the ribs 15' covered with the cloth material 15' are fitted into the corresponding V-rib forming grooves 23a, the cylindrical mold 23 with the uncrosslinked slab S' is placed on an expansion drum. 22 and attached to the base 21.
- the cylindrical mold 23 is heated and, as shown in FIG. 4C, high pressure air is injected between the drum body 22a of the expansion drum 22 and the expansion sleeve 22b through the ventilation hole 22c to expand the expansion sleeve 22b. Inflate.
- the uncrosslinked slab S' is pressed against the cylindrical mold 23, and the rubber sheet 11' for forming the compressed rubber layer, the rubber sheet 12' for forming the adhesive rubber layer, and the rubber for forming the stretchable rubber layer.
- the sheet 13' is integrated and crosslinking of the rubber component progresses, and the cloth material 15' and the sheet material 16' and the twisted yarn 17' that join the edges thereof are combined, and finally a cylindrical belt is formed.
- a slab S is molded. Note that when the sheet material 16' is an uncrosslinked rubber composition sheet, crosslinking of the rubber component proceeds.
- a V-ribbed belt B can be obtained by cutting into rounds for each number of ribs 14 and turning them over.
- the non-fabric covering part 16 is provided so as to extend straight in the belt width direction, but the present invention is not limited to this.
- the structure may be such that it has an angle, or it may be a structure that is formed so as to form a curved line or a zigzag line.
- V-ribbed belt A compressed rubber layer having a configuration similar to that of the above embodiment is a V-ribbed belt in which the number of V ribs is three formed of an EPDM rubber composition in which the rubber component is EPDM, and the non-fabric covering portion is made of a crosslinked material.
- a belt was made of the same EPDM rubber composition as the rubber layer, and a non-fabric covering portion having a dimension L in the belt length direction of 1 ⁇ m was prepared, and this was designated as Example 1.
- the adhesive rubber layer and the stretchable rubber layer were each formed from an EPDM rubber composition having a different formulation from that of the compressed rubber layer.
- the covering fabric was composed of a knitted fabric formed by inter-knitting adhesive-treated cotton and polyurethane yarns.
- the core wire was made of aramid fiber strands that were treated with adhesive.
- Example 2 A V-ribbed belt having the same configuration as Example 1 was produced, and this was designated as Example 2, except that the dimension L in the belt length direction of the non-fabric covering portion was 5 mm.
- Example 3 A V-ribbed belt having the same configuration as Example 1 was produced, and this was designated as Example 3, except that the dimension L in the belt length direction of the non-fabric covering portion was 50 mm.
- Example 4 A V-ribbed belt having the same structure as Example 1 was produced, and this was designated as Example 2, except that the dimension L in the belt length direction of the non-fabric covering portion was 60 mm.
- Example 5 A V-ribbed belt having the same structure as in Example 1 was produced, and this was designated as Example 5, except that the non-fabric covering portion was formed only of uncrosslinked EPDM polymer, which is a thermoplastic material.
- Example 6 A V-ribbed belt having the same structure as in Example 3 was produced, and this was designated as Example 6, except that the non-fabric covering portion was formed only of uncrosslinked EPDM polymer, which is a thermoplastic material.
- Example 7 A V-ribbed belt having the same structure as in Example 4 was produced, and this was designated as Example 7, except that the non-fabric covering portion was formed only of uncrosslinked EPDM polymer, which is a thermoplastic material.
- Example 8 A V-ribbed belt having the same structure as in Example 4 was prepared, and this was designated as Example 8, except that the non-fabric covering portion was formed only from a polymer of uncrosslinked 1,2-polybutadiene, which is a thermoplastic material.
- FIG. 5 shows a pulley layout of a belt running tester 30 for evaluating crack resistance tests conducted under a room temperature atmosphere.
- a lower drive pulley 31 and an upper first driven pulley 32 are provided at intervals in the vertical direction.
- Idler pulleys 33 which are a pair of flat pulleys each having a pulley diameter of 40 mm, are provided on the right side of the middle of the drive pulley 31 and the first driven pulley 32 at intervals in the vertical direction.
- a second driven pulley 34 which is a rib pulley with a pulley diameter of 45 mm, is provided on the right side of the pair of idler pulleys 33.
- the V-ribbed belt B is wound so that the V-rib side contacts the drive pulley 31 and the first and second driven pulleys 32, 34, and the back side contacts the pair of idler pulleys 33.
- Each of the V-ribbed belts B of Examples 1 to 8 and Comparative Examples 1 to 2 was wound around a belt running tester 30.
- a dead weight (DW) of 588 N was applied upward to the first driven pulley 32 to apply belt tension.
- DW dead weight
- the drive pulley 31 was rotated at a rotation speed of 5100 rpm and the belt was run under a room temperature atmosphere (23 ⁇ 5° C.). Then, belt running was periodically stopped, and the surface of the V-ribbed belt B on the V-rib side was visually observed. Belt running was stopped when a crack reaching the bottom of the V rib was observed, and the belt running time up to that point was defined as the crack resistance life at room temperature.
- Example 1 The test results are shown in Tables 1 and 2. According to Tables 1 and 2, Examples 1 to 8 in which the surface on the V-rib side includes a non-cloth covering part are different from Comparative Example 1 in which the covering fabric is made of a cloth material with both end sides joined by adhesive, and Comparative Example 1 in which the covering cloth is made of a cloth material with both end sides joined by adhesive. It can be seen that the crack resistance is better than that of Comparative Example 2, in which the covering cloth was made of a cloth material in which the parts were joined by stitching.
- the present invention is useful in the technical field of V-ribbed belts and manufacturing methods thereof.
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Abstract
Description
<実施例1>
上記実施形態と同様の構成の圧縮ゴム層がゴム成分をEPDMとするEPDMゴム組成物で形成されたVリブの数が3個のVリブドベルトであって、非布被覆部を架橋材料である圧縮ゴム層と同一のEPDMゴム組成物で形成するとともに、非布被覆部のベルト長さ方向の寸法Lを1μmとしたものを作製し、これを実施例1とした。
非布被覆部のベルト長さ方向の寸法Lを5mmとしたことを除いて実施例1と同一構成のVリブドベルトを作製し、これを実施例2とした。
非布被覆部のベルト長さ方向の寸法Lを50mmとしたことを除いて実施例1と同一構成のVリブドベルトを作製し、これを実施例3とした。
非布被覆部のベルト長さ方向の寸法Lを60mmとしたことを除いて実施例1と同一構成のVリブドベルトを作製し、これを実施例2とした。
非布被覆部を熱可塑性材料である未架橋のEPDMのポリマーのみで形成したことを除いて実施例1と同一構成のVリブドベルトを作製し、これを実施例5とした。
非布被覆部を熱可塑性材料である未架橋のEPDMのポリマーのみで形成したことを除いて実施例3と同一構成のVリブドベルトを作製し、これを実施例6とした。
非布被覆部を熱可塑性材料である未架橋のEPDMのポリマーのみで形成したことを除いて実施例4と同一構成のVリブドベルトを作製し、これを実施例7とした。
非布被覆部を熱可塑性材料である未架橋の1,2-ポリブタジエンのポリマーのみで形成したことを除いて実施例4と同一構成のVリブドベルトを作製し、これを実施例8とした。
両端辺部を突き合わせて縫合により接合した布材を被覆布として用いたことを除いて実施例1と同一構成のVリブドベルトを作製し、これを比較例1とした。
両端辺部をオーバーラップさせて接着により接合した布材を被覆布として用いたことを除いて実施例1と同一構成のVリブドベルトを作製し、これを比較例2とした。
図5は、室温雰囲気下で行う耐クラック性試験評価用のベルト走行試験機30のプーリレイアウトを示す。
S ベルトスラブ
S’ 未架橋スラブ
10 ベルト本体
11 圧縮ゴム層
11’,12’,13’ ゴムシート
12 接着ゴム層
13 伸張ゴム層
14 Vリブ
15 被覆布
15’ 布材
16 非布被覆部
16’ シート材
17 心線
17’ 撚り糸
20 架橋装置
21 基台
22 膨張ドラム
22a ドラム本体
22b 膨張スリーブ
22c 通気孔
23 円筒金型
23a Vリブ形成溝
24,25 固定リング
26 円筒ドラム
27 ゴムスリーブ
30 ベルト走行試験機
31 駆動プーリ
32 第1従動プーリ
33 アイドラプーリ
34 第2従動プーリ
Claims (8)
- ベルト長さ方向に並行に延びるように設けられた複数のVリブを有するVリブドベルトであって、
前記複数のVリブは、ゴム組成物で形成された複数のVリブ本体が被覆布で被覆されて構成されており、
前記Vリブ側の表面は、前記被覆布の端辺間に挟まれてベルト全幅を横断して延びるように設けられた非布被覆部を含むVリブドベルト。 - 請求項1に記載されたVリブドベルトにおいて、
前記非布被覆部がゴム組成物で形成されているVリブドベルト。 - 請求項2に記載されたVリブドベルトにおいて、
前記非布被覆部を形成するゴム組成物は、前記複数のVリブ本体を形成するゴム組成物とゴム成分が同一であるVリブドベルト。 - 請求項3に記載されたVリブドベルトにおいて、
前記非布被覆部を形成するゴム組成物は、前記複数のVリブ本体を形成するゴム組成物と同一であるVリブドベルト。 - 請求項1に記載されたVリブドベルトにおいて、
前記非布被覆部が熱可塑性材料で形成されているVリブドベルト。 - 請求項1に記載されたVリブドベルトにおいて、
前記非布被覆部のベルト長さ方向の寸法が0.5μm以上60mm以下であるVリブドベルト。 - 請求項1に記載されたVリブドベルトにおいて、
前記非布被覆部がベルト幅方向に真っ直ぐに延びるように設けられたVリブドベルト。 - 請求項1に記載されたVリブドベルトの製造方法において、
前記被覆布となる布材の端辺部間を、前記非布被覆部を形成するためのシート材を接合部材として接合し、
前記シート材で端辺部間を接合した布材を、前記複数のVリブ本体を形成するための未架橋ゴム組成物に積層した未架橋スラブを作製するステップを含むVリブドベルトの製造方法。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380045273.5A CN119325540A (zh) | 2022-07-08 | 2023-06-02 | 多楔带及其制造方法 |
| JP2023534007A JP7336625B1 (ja) | 2022-07-08 | 2023-06-02 | Vリブドベルト及びその製造方法 |
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| JP2022110722 | 2022-07-08 | ||
| JP2022-110722 | 2022-07-08 |
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| WO2024009663A1 true WO2024009663A1 (ja) | 2024-01-11 |
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| PCT/JP2023/020576 Ceased WO2024009663A1 (ja) | 2022-07-08 | 2023-06-02 | Vリブドベルト及びその製造方法 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014126132A (ja) * | 2012-12-26 | 2014-07-07 | Mitsuboshi Belting Ltd | 伝動ベルト及びその製造方法 |
| WO2020252410A1 (en) * | 2019-06-13 | 2020-12-17 | Gates Corporation | Power transmission belt with striped surface and a striped cover fabric |
-
2023
- 2023-06-02 WO PCT/JP2023/020576 patent/WO2024009663A1/ja not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014126132A (ja) * | 2012-12-26 | 2014-07-07 | Mitsuboshi Belting Ltd | 伝動ベルト及びその製造方法 |
| WO2020252410A1 (en) * | 2019-06-13 | 2020-12-17 | Gates Corporation | Power transmission belt with striped surface and a striped cover fabric |
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