WO2018190369A1 - Strip-like belt and endless belt - Google Patents

Strip-like belt and endless belt Download PDF

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Publication number
WO2018190369A1
WO2018190369A1 PCT/JP2018/015221 JP2018015221W WO2018190369A1 WO 2018190369 A1 WO2018190369 A1 WO 2018190369A1 JP 2018015221 W JP2018015221 W JP 2018015221W WO 2018190369 A1 WO2018190369 A1 WO 2018190369A1
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WO
WIPO (PCT)
Prior art keywords
belt
joint
convex
shaped
main body
Prior art date
Application number
PCT/JP2018/015221
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French (fr)
Japanese (ja)
Inventor
暁彦 栗谷
武士 窪田
亮人 大井
良寛 小西
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ニッタ株式会社
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Publication of WO2018190369A1 publication Critical patent/WO2018190369A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • 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
    • F16G1/06—Driving-belts made of rubber
    • F16G1/08—Driving-belts made of rubber with reinforcement bonded by the rubber
    • 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
    • F16G3/00—Belt fastenings, e.g. for conveyor belts
    • F16G3/10—Joining belts by sewing, sticking, vulcanising, or the like; Constructional adaptations of the belt ends for this purpose
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern

Definitions

  • the present invention relates to a belt-like belt and an endless belt.
  • Endless belts are used for conveyor belts in conveyors such as financial terminals, automatic ticket gates, and ticket vending machines.
  • this endless belt for example, a belt made of a reinforcing material such as a fiber material (for example, knitted fabric) and a thermosetting resin such as rubber is disclosed (for example, Patent Document 1).
  • thermosetting resin since a thermosetting resin is used as a main material, there is a problem that an adhesive portion for joining thermoplastic resins to each other is necessary, and the operation becomes complicated.
  • the transport device When exchanging the endless belt used in the transport device, the transport device must be stopped while the belt is being replaced. Therefore, it is desirable that the working time for replacing the belt is as short as possible.
  • the belt after replacement which is made endless by fusing thermoplastic resin, has an early deterioration in the boundary between the thermosetting resin and the thermoplastic resin compared to a seamless belt made of thermosetting resin. There is concern that it will be inferior.
  • An object of the present invention is to provide a belt-like belt that can be easily joined at a site where the belt is used, and an endless belt that can suppress a decrease in durability.
  • a belt-like belt according to the present invention includes a belt-like belt main body formed of a thermosetting resin and a joint provided at at least one end of the belt main body, and the joint is formed of a thermoplastic resin. Yes.
  • An endless belt according to the present invention includes a belt-like belt main body formed of a thermosetting resin, and a fusion part provided between both ends of the belt main body, and the fusion part includes a thermoplastic resin.
  • the belt main body has a mountain-shaped convex part complementary to the concave part at both ends, and the fused part and the belt main body are formed of the concave part and the belt main part. It joins in the convex part.
  • the joining portion is joined to the belt main body in advance, an endless belt can be obtained by joining one place, so the belt-like belt is easily connected at the site where it is used. be able to.
  • the fusion part disperses the force in the thickness direction in the width direction by the recesses, thereby preventing breakage due to the force acting in the thickness direction of the belt and suppressing a decrease in durability.
  • FIG. 6A is a plan view of an end portion of a belt-like belt according to a modified example of the present embodiment, FIG. 6A is a modified example (3), FIG. 6B is a modified example (4), and FIG. . It is a top view of the edge part of the belt shaped belt concerning a modification of this embodiment, Drawing 7A is a figure showing modification (6), and Drawing 7B is a modification (7).
  • a belt-like belt 10A shown in FIG. 1 is provided at a belt main body 12, a first joint 14 provided at a first end 13 which is one end of the belt main body 12, and a second end 15 which is the other end.
  • the belt body 12 is a band-shaped member formed of a thermosetting resin, for example, millable urethane or urethane elastomer.
  • the first end 13 has a first protrusion 18 protruding in the longitudinal direction.
  • the second end portion 15 has a second convex portion 19 protruding in the longitudinal direction.
  • the 1st convex part 18 and the 2nd convex part 19 are mountain shapes which taper toward the front-end
  • the first convex portion 18 and the second convex portion 19 are formed by two sides of a triangle whose apex is the center of the belt body 12 in the width direction.
  • the 1st edge part 13 and the 2nd edge part 15 have only the 1st convex part 18 and the 2nd convex part 19 (mountain shape) in the width direction.
  • the first protrusion 18 and the second protrusion 19 are formed by punching the first end 13 and the second end 15 of the belt body 12.
  • the first joint 14 and the second joint 16 are plate-like members formed of a thermoplastic resin, for example, urethane elastomer, polyamide elastomer, polyester elastomer, polyvinyl chloride elastomer, or polyolefin elastomer.
  • the widths of the first joint 14 and the second joint 16 are the same as the width of the belt body 12.
  • the first joint portion 14 has a first recess 20 at one end on the side joined to the first end portion 13 and a first flat portion 22 at the other end.
  • the first concave portion 20 has a valley shape that is complementary to the mountain shape of the first convex portion 18, and is joined to the first convex portion 18 with no gap.
  • the 1st junction part 14 has only the 1st recessed part 20 (valley shape) in the width direction.
  • the second joint 16 has a second recess 21 at one end on the side joined to the second end 15 and a second flat part 23 at the other end.
  • the second concave portion 21 has a valley shape complementary to the mountain shape of the second convex portion 19, and is joined to the second convex portion 19 with no gap.
  • the 2nd junction part 16 has only the 2nd recessed part 21 (valley shape) in the width direction.
  • the 1st junction part 14 and the 2nd junction part 16 are demonstrated with reference to FIG. Since the 1st junction part 14 and the 2nd junction part 16 differ only in direction, the 1st junction part 14 is demonstrated as a representative.
  • the length L1 of the 1st junction part 14 can improve workability
  • the first concave portion 20 is formed by two sides of a triangle whose apex is the center in the width direction of the first joint portion 14. It is preferable that the length L2 from the 1st flat part 22 to the bottom of the 1st recessed part 20 is 1 mm or more as for the 1st junction part 14. FIG. If length L2 is 1 mm or more, the 1st junction part 14 and the 2nd junction part 16 can be melt
  • the angle ⁇ formed by the two sides of the first recess 20 is preferably 30 ° or more and 120 ° or less. If the angle ⁇ is 30 ° or more, the length in the longitudinal direction of the portion where the first joint portion 14 and the first end portion 13 are fused does not become too long. If angle (theta) is 120 degrees or less, the junction area of the 1st junction part 14 and the 1st edge part 13 is fully securable.
  • the first end portion 13 and the second end portion 15 are disposed on the upper surface of a lower mold (not shown).
  • the 1st junction part 14 and the 2nd junction part 16 are arrange
  • an upper mold is disposed on the first joint portion 14 and the second joint portion 16 and heated while being pressed in the thickness direction by a pressurizing body (not shown) for a certain time. Then, the first joint portion 14 and the second joint portion 16 melt and fluidize.
  • the first joint portion 14 and the second joint portion 16 are solidified, and the fused portion 24 is formed as shown in FIG. As described above, the first end portion 13 and the second end portion 15 are joined via the fused portion 24, and the endless belt 25 is formed.
  • Thermoplastic resin has higher hardness than thermosetting resin. Accordingly, the strength against the force in the thickness direction is lower between the fusion portion 24 and the first end portion 13 and the second end portion 15 than the belt body 12.
  • distributes the force of the thickness direction to the width direction by the 1st recessed part 20 and the 2nd recessed part 21.
  • FIG. Therefore, the endless belt of the present embodiment can prevent breakage due to the force acting in the thickness direction of the belt, and can suppress a decrease in durability.
  • the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the gist of the present invention.
  • the belt-like belt 10A includes the first joint portion 14 and the second joint portion 16 has been described, but the present invention is not limited thereto.
  • the belt-like belt 10 ⁇ / b> B may include only one joining portion 26.
  • the belt-like belt 10 ⁇ / b> B shown in the figure includes a belt main body 12 and a joint portion 26 provided at the second end portion 15.
  • the first end portion 13 has only the first convex portion 18 and no joint portion is provided.
  • the joining portion 26 has a first recess 20 at one end and a second recess 21 at the other end.
  • the second concave portion 21 is joined to the second convex portion 19.
  • the belt-like belt 10 ⁇ / b> B can join the first end 13 and the second end 15 by joining one portion of the first concave portion 20 and the first convex portion 18. Since the joining part 26 has the 1st recessed part 20 and the 2nd recessed part 21, the effect similar to the said 1st Embodiment can be acquired.
  • the belt-like belt 10 ⁇ / b> C shown in FIG. 5 is provided at the belt main body 12, the first joint portion 14 provided at the first end portion 13, and the second end portion 15, and is longer than the first joint portion 14.
  • the length of the second joint portion 28 is preferably at least 10% of the length of the belt body 12. Since the second joint portion 28 has the above length, the length of the endless belt can be appropriately adjusted according to the machine on which the belt is installed. Therefore, the belt-like belt 10C can improve versatility.
  • the first concave portion (second concave portion) 34 is formed by two sides of a triangle whose apex is a position biased to one side in the width direction of the first joint portion (second joint portion) 32. May be. As shown in FIG.
  • the first joint portion (second joint portion) 33 has a contact point between two sides of the triangle forming the valley shape of the first concave portion (second concave portion) 35 and the side side of the belt body.
  • the belt main body may be displaced in the length direction.
  • the first recess (second recess) 40 may be arcuate.
  • the radius of curvature r of the first concave portion (second concave portion) 40 having an arc shape is preferably W / 2 ⁇ r ⁇ .
  • the 1st junction part 14 (2nd junction part 16) is the 1st convex part 18 (2nd convex part 19) of the belt main body in the 1st recessed part 20 (2nd recessed part 21) provided in the end.
  • the present invention is not limited to this.
  • the first joint portion (second joint portion) 42 may be joined to the belt body 12 at the flat portion 44.
  • the flat portion 44 shown in the figure is a straight line perpendicular to the longitudinal direction of the belt body 12.
  • the belt main body 12 has a linear flat portion 46 orthogonal to the longitudinal direction.
  • the flat portions 44 and 46 are not limited to a linear shape orthogonal to the longitudinal direction of the belt body 12.
  • 7B has the flat part 50 inclined with respect to the direction orthogonal to a longitudinal direction.
  • the belt main body 12 has an inclined flat portion 52 that is complementary to the flat portion 50.
  • the first joint portion (second joint portion) may be joined to the belt body at a mountain-shaped convex portion.
  • the belt body has a valley-shaped concave portion complementary to the convex portion.
  • the outer angle ⁇ 1 of the convex portion is preferably 180 ° ⁇ 1 ⁇ 330 °.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Belt Conveyors (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

Provided are a strip-like belt that allows easy joining on-site where the belt is used, and an endless belt capable of suppressing reduction in durability. This strip-like belt (10A) comprises a strip-like belt body (12) which is formed from a thermosetting resin and joint portions (14) and (16) which are disposed at at least one end of the belt body (12). The joint portions (14) and (16) are formed from a thermoplastic resin.

Description

帯状ベルト及び無端ベルトBelt belt and endless belt
　本発明は、帯状ベルト及び無端ベルトに関するものである。 The present invention relates to a belt-like belt and an endless belt.
　無端ベルトは、金融端末装置、自動改札機、券売機などの搬送装置における搬送用ベルトに使用されている。この無端ベルトとしては、例えば、繊維材（例えば編布）などの補強材とゴムなどの熱硬化性樹脂とからなるベルトが開示されている（例えば、特許文献１）。 Endless belts are used for conveyor belts in conveyors such as financial terminals, automatic ticket gates, and ticket vending machines. As this endless belt, for example, a belt made of a reinforcing material such as a fiber material (for example, knitted fabric) and a thermosetting resin such as rubber is disclosed (for example, Patent Document 1).
特開２０１６－０３８０１０号公報JP 2016-038010 A
　しかしながら上記特許文献１の場合、熱硬化性樹脂を主材料とするので、熱可塑性樹脂同士を接合する接着部が必要であり、作業が煩雑になるという問題がある。搬送装置に使用されている無端ベルトを交換する際、ベルトを交換している間、搬送装置は停止せざるを得ない。そのため、ベルトを交換する作業時間は、可能な限り短いことが望まれる。また、熱可塑性樹脂を融着して無端状とした交換後のベルトは、熱硬化性樹脂で形成されたシームレスベルトに比べ、熱硬化性樹脂と熱可塑性樹脂の境目が早期に劣化し、耐久性が劣ってしまうという懸念がある。 However, in the case of the above-mentioned Patent Document 1, since a thermosetting resin is used as a main material, there is a problem that an adhesive portion for joining thermoplastic resins to each other is necessary, and the operation becomes complicated. When exchanging the endless belt used in the transport device, the transport device must be stopped while the belt is being replaced. Therefore, it is desirable that the working time for replacing the belt is as short as possible. In addition, the belt after replacement, which is made endless by fusing thermoplastic resin, has an early deterioration in the boundary between the thermosetting resin and the thermoplastic resin compared to a seamless belt made of thermosetting resin. There is concern that it will be inferior.
　本発明は、ベルトが使用される現場において容易に接合することができる帯状ベルト、耐久性の低下を抑制することができる無端ベルトを提供することを目的とする。 An object of the present invention is to provide a belt-like belt that can be easily joined at a site where the belt is used, and an endless belt that can suppress a decrease in durability.
　本発明に係る帯状ベルトは、熱硬化性樹脂で形成された帯状のベルト本体と、前記ベルト本体の少なくとも一端に設けられた接合部とを備え、前記接合部は、熱可塑性樹脂で形成されている。 A belt-like belt according to the present invention includes a belt-like belt main body formed of a thermosetting resin and a joint provided at at least one end of the belt main body, and the joint is formed of a thermoplastic resin. Yes.
　本発明に係る無端ベルトは、熱硬化性樹脂で形成された帯状のベルト本体と、前記ベルト本体の両端部の間に設けられた融着部とを備え、前記融着部は、熱可塑性樹脂で形成され、両端に谷形状の凹部を有し、前記ベルト本体は、両端に前記凹部と相補的な山形状の凸部を有し、前記融着部と前記ベルト本体は、前記凹部と前記凸部において接合されている。 An endless belt according to the present invention includes a belt-like belt main body formed of a thermosetting resin, and a fusion part provided between both ends of the belt main body, and the fusion part includes a thermoplastic resin. The belt main body has a mountain-shaped convex part complementary to the concave part at both ends, and the fused part and the belt main body are formed of the concave part and the belt main part. It joins in the convex part.
　本発明によれば、接合部が、予めベルト本体に接合されているため、１ヶ所を接合することにより、無端ベルトを得ることができるので、帯状ベルトは、使用される現場において容易に接続することができる。融着部は、凹部によって厚さ方向の力を幅方向に分散することにより、ベルトの厚さ方向に作用する力による破損を防止し、耐久性の低下を抑制することができる。 According to the present invention, since the joining portion is joined to the belt main body in advance, an endless belt can be obtained by joining one place, so the belt-like belt is easily connected at the site where it is used. be able to. The fusion part disperses the force in the thickness direction in the width direction by the recesses, thereby preventing breakage due to the force acting in the thickness direction of the belt and suppressing a decrease in durability.
本実施形態に係る帯状ベルトを示す斜視図である。It is a perspective view which shows the strip | belt-shaped belt which concerns on this embodiment. 本実施形態に係る帯状ベルトの端部の平面図である。It is a top view of the edge part of the belt shaped belt concerning this embodiment. 本実施形態に係る無端ベルトの接合部を示す斜視図である。It is a perspective view which shows the junction part of the endless belt which concerns on this embodiment. 本実施形態の変形例（１）に係る帯状ベルトを示す斜視図である。It is a perspective view which shows the strip | belt-shaped belt which concerns on the modification (1) of this embodiment. 本実施形態の変形例（２）に係る帯状ベルトを示す斜視図である。It is a perspective view which shows the strip | belt-shaped belt which concerns on the modification (2) of this embodiment. 本実施形態の変形例に係る帯状ベルトの端部の平面図であり、図６Ａは変形例（３）、図６Ｂは変形例（４）、図６Ｃは変形例（５）を示す図である。FIG. 6A is a plan view of an end portion of a belt-like belt according to a modified example of the present embodiment, FIG. 6A is a modified example (3), FIG. 6B is a modified example (4), and FIG. . 本実施形態の変形例に係る帯状ベルトの端部の平面図であり、図７Ａは変形例（６）、図７Ｂは変形例（７）を示す図である。It is a top view of the edge part of the belt shaped belt concerning a modification of this embodiment, Drawing 7A is a figure showing modification (6), and Drawing 7B is a modification (7).
　以下、図面を参照して本発明の実施形態について詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
　図１に示す帯状ベルト１０Ａは、ベルト本体１２と、ベルト本体１２の一端である第１端部１３に設けられた第１接合部１４と、他端である第２端部１５に設けられた第２接合部１６とを備える。ベルト本体１２は、熱硬化性樹脂、例えば、ミラブルウレタンやウレタンエラストマーで形成された帯状の部材である。第１端部１３は、長手方向に突出した第１凸部１８を有する。第２端部１５は、長手方向に突出した第２凸部１９を有する。第１凸部１８及び第２凸部１９は、先端に向かって先細となる山形状である。第１凸部１８及び第２凸部１９は、ベルト本体１２の幅方向の中央を頂点とする三角形の２辺で形成されている。第１端部１３及び第２端部１５は、第１凸部１８及び第２凸部１９（山形状）を幅方向において１つのみ有する。第１凸部１８及び第２凸部１９は、ベルト本体１２の第１端部１３及び第２端部１５に対し、打ち抜き加工を施すことにより、形成される。 A belt-like belt 10A shown in FIG. 1 is provided at a belt main body 12, a first joint 14 provided at a first end 13 which is one end of the belt main body 12, and a second end 15 which is the other end. A second joint 16. The belt body 12 is a band-shaped member formed of a thermosetting resin, for example, millable urethane or urethane elastomer. The first end 13 has a first protrusion 18 protruding in the longitudinal direction. The second end portion 15 has a second convex portion 19 protruding in the longitudinal direction. The 1st convex part 18 and the 2nd convex part 19 are mountain shapes which taper toward the front-end | tip. The first convex portion 18 and the second convex portion 19 are formed by two sides of a triangle whose apex is the center of the belt body 12 in the width direction. The 1st edge part 13 and the 2nd edge part 15 have only the 1st convex part 18 and the 2nd convex part 19 (mountain shape) in the width direction. The first protrusion 18 and the second protrusion 19 are formed by punching the first end 13 and the second end 15 of the belt body 12.
　第１接合部１４及び第２接合部１６は、熱可塑性樹脂、例えば、ウレタンエラストマー、ポリアミドエラストマー、ポリエステルエラストマー、ポリ塩化ビニル系エラストマー、ポリオレフィン系エラストマーで形成された板状の部材である。第１接合部１４及び第２接合部１６の幅長さは、ベルト本体１２の幅長さと同じである。第１接合部１４は、第１端部１３と接合している側の一端に第１凹部２０、他端に第１平坦部２２を有する。第１凹部２０は、第１凸部１８の山形状に相補的な谷形状を有し、第１凸部１８との間に隙間がない状態で接合されている。第１接合部１４は、第１凹部２０（谷形状）を幅方向に１つのみ有する。第２接合部１６は、第２端部１５と接合している側の一端に第２凹部２１、他端に第２平坦部２３を有する。第２凹部２１は、第２凸部１９の山形状に相補的な谷形状を有し、第２凸部１９との間に隙間がない状態で接合されている。第２接合部１６は、第２凹部２１（谷形状）を幅方向に１つのみ有する。 The first joint 14 and the second joint 16 are plate-like members formed of a thermoplastic resin, for example, urethane elastomer, polyamide elastomer, polyester elastomer, polyvinyl chloride elastomer, or polyolefin elastomer. The widths of the first joint 14 and the second joint 16 are the same as the width of the belt body 12. The first joint portion 14 has a first recess 20 at one end on the side joined to the first end portion 13 and a first flat portion 22 at the other end. The first concave portion 20 has a valley shape that is complementary to the mountain shape of the first convex portion 18, and is joined to the first convex portion 18 with no gap. The 1st junction part 14 has only the 1st recessed part 20 (valley shape) in the width direction. The second joint 16 has a second recess 21 at one end on the side joined to the second end 15 and a second flat part 23 at the other end. The second concave portion 21 has a valley shape complementary to the mountain shape of the second convex portion 19, and is joined to the second convex portion 19 with no gap. The 2nd junction part 16 has only the 2nd recessed part 21 (valley shape) in the width direction.
　図２を参照して第１接合部１４及び第２接合部１６について説明する。第１接合部１４と第２接合部１６は、向きが異なるのみであるので、代表して第１接合部１４について説明する。第１接合部１４の長さＬ１は、より長い方が、接合する際の作業性を向上することができる。第１接合部１４の長さＬ１は、１０ｍｍ以上であるのがより好ましい。第１凹部２０は、第１接合部１４の幅方向の中央を頂点とする三角形の２辺で形成されている。第１接合部１４は、第１平坦部２２から第１凹部２０の底までの長さＬ２が１ｍｍ以上であるのが好ましい。長さＬ２が１ｍｍ以上であれば、第１平坦部２２と第２平坦部２３の間に隙間がない状態で、第１接合部１４と第２接合部１６を融着することができる。 The 1st junction part 14 and the 2nd junction part 16 are demonstrated with reference to FIG. Since the 1st junction part 14 and the 2nd junction part 16 differ only in direction, the 1st junction part 14 is demonstrated as a representative. The length L1 of the 1st junction part 14 can improve workability | operativity at the time of joining longer. As for length L1 of the 1st joined part 14, it is more preferred that it is 10 mm or more. The first concave portion 20 is formed by two sides of a triangle whose apex is the center in the width direction of the first joint portion 14. It is preferable that the length L2 from the 1st flat part 22 to the bottom of the 1st recessed part 20 is 1 mm or more as for the 1st junction part 14. FIG. If length L2 is 1 mm or more, the 1st junction part 14 and the 2nd junction part 16 can be melt | fused in the state in which there is no clearance gap between the 1st flat part 22 and the 2nd flat part 23. FIG.
　第１凹部２０の２辺のなす角度θは、３０°以上１２０°以下であるのが好ましい。角度θが３０°以上であれば、第１接合部１４と第１端部１３を融着する部分の長手方向の長さが長くなり過ぎない。角度θが１２０°以下であれば、第１接合部１４と第１端部１３の接合面積を十分に確保できる。 The angle θ formed by the two sides of the first recess 20 is preferably 30 ° or more and 120 ° or less. If the angle θ is 30 ° or more, the length in the longitudinal direction of the portion where the first joint portion 14 and the first end portion 13 are fused does not become too long. If angle (theta) is 120 degrees or less, the junction area of the 1st junction part 14 and the 1st edge part 13 is fully securable.
　次に、本実施形態に係る帯状ベルト１０Ａを無端ベルトにする方法を説明する。まず、第１平坦部２２と第２平坦部２３を突き合わせた状態で、第１端部１３及び第２端部１５を図示しない下型の上面に配置する。第１接合部１４及び第２接合部１６は、第１平坦部２２と第２平坦部２３が接触した状態、又は、厚さ方向に一部が重なった状態で配置される。次いで、第１接合部１４と第２接合部１６の上に上型を配置して、一定時間、加圧体（図示しない）によって厚さ方向に加圧しながら、加熱する。そうすると第１接合部１４と第２接合部１６は、溶融して流動化する。 Next, a method for making the belt 10A according to this embodiment an endless belt will be described. First, in a state where the first flat portion 22 and the second flat portion 23 are abutted, the first end portion 13 and the second end portion 15 are disposed on the upper surface of a lower mold (not shown). The 1st junction part 14 and the 2nd junction part 16 are arrange | positioned in the state which the 1st flat part 22 and the 2nd flat part 23 contacted, or the state which overlapped in the thickness direction. Next, an upper mold is disposed on the first joint portion 14 and the second joint portion 16 and heated while being pressed in the thickness direction by a pressurizing body (not shown) for a certain time. Then, the first joint portion 14 and the second joint portion 16 melt and fluidize.
　続いて、下型及び上型を冷却することにより、第１接合部１４及び第２接合部１６が固化し、図３に示すように、融着部２４が形成される。上記のようにして、融着部２４を介して、第１端部１３と第２端部１５が接合され、無端ベルト２５が形成される。 Subsequently, by cooling the lower die and the upper die, the first joint portion 14 and the second joint portion 16 are solidified, and the fused portion 24 is formed as shown in FIG. As described above, the first end portion 13 and the second end portion 15 are joined via the fused portion 24, and the endless belt 25 is formed.
　本実施形態の場合、第１接合部１４及び第２接合部１６が、予めベルト本体１２に接合されているため、第１接合部１４及び第２接合部１６同士の１ヶ所を接合することにより、無端ベルト２５を得ることができる。したがって接合箇所を１ヶ所のみとすることができるので、帯状ベルト１０Ａは、使用される現場において容易に接続することができる。 In the case of this embodiment, since the 1st junction part 14 and the 2nd junction part 16 are joined to the belt main body 12 previously, by joining one place of the 1st junction part 14 and the 2nd junction part 16 mutually. The endless belt 25 can be obtained. Therefore, since only one joint location can be provided, the belt 10A can be easily connected at the site where it is used.
　熱可塑性樹脂は、熱硬化性樹脂に比べ、硬度が高くなる。したがって融着部２４と、第１端部１３及び第２端部１５の間は、ベルト本体１２に比べ、厚さ方向の力に対する強度が低下する。本実施形態の場合、融着部２４は、第１凹部２０及び第２凹部２１によって厚さ方向の力を幅方向に分散する。したがって本実施形態の無端ベルトは、ベルトの厚さ方向に作用する力による破損を防止し、耐久性の低下を抑制することができる。 Thermoplastic resin has higher hardness than thermosetting resin. Accordingly, the strength against the force in the thickness direction is lower between the fusion portion 24 and the first end portion 13 and the second end portion 15 than the belt body 12. In the case of this embodiment, the fusion | melting part 24 disperse | distributes the force of the thickness direction to the width direction by the 1st recessed part 20 and the 2nd recessed part 21. FIG. Therefore, the endless belt of the present embodiment can prevent breakage due to the force acting in the thickness direction of the belt, and can suppress a decrease in durability.
（変形例）
　本発明は上記実施形態に限定されるものではなく、本発明の趣旨の範囲内で適宜変更することが可能である。 (Modification)
The present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the gist of the present invention.
　上記実施形態の場合、帯状ベルト１０Ａは、第１接合部１４及び第２接合部１６を備える場合について説明したが、本発明はこれに限らない。例えば、図４に示すように、帯状ベルト１０Ｂは、１つの接合部２６のみを備えることとしてもよい。本図に示す帯状ベルト１０Ｂは、ベルト本体１２と、第２端部１５に設けられた接合部２６を備える。第１端部１３は、第１凸部１８を有するのみで、接合部は設けられていない。接合部２６は、一端に第１凹部２０、他端に第２凹部２１を有する。第２凹部２１は第２凸部１９に接合されている。帯状ベルト１０Ｂは、第１凹部２０と第１凸部１８の１ヶ所を接合することにより、第１端部１３と第２端部１５を接合することができる。接合部２６は、第１凹部２０及び第２凹部２１を有するので、上記第１実施形態と同様の効果を得ることができる。 In the case of the above embodiment, the case where the belt-like belt 10A includes the first joint portion 14 and the second joint portion 16 has been described, but the present invention is not limited thereto. For example, as shown in FIG. 4, the belt-like belt 10 </ b> B may include only one joining portion 26. The belt-like belt 10 </ b> B shown in the figure includes a belt main body 12 and a joint portion 26 provided at the second end portion 15. The first end portion 13 has only the first convex portion 18 and no joint portion is provided. The joining portion 26 has a first recess 20 at one end and a second recess 21 at the other end. The second concave portion 21 is joined to the second convex portion 19. The belt-like belt 10 </ b> B can join the first end 13 and the second end 15 by joining one portion of the first concave portion 20 and the first convex portion 18. Since the joining part 26 has the 1st recessed part 20 and the 2nd recessed part 21, the effect similar to the said 1st Embodiment can be acquired.
　上記実施形態の場合、第１接合部１４と第２接合部１６は、向きが異なるのみでその他は同じである場合について説明したが、本発明はこれに限らない。例えば、図５に示す帯状ベルト１０Ｃは、ベルト本体１２と、第１端部１３に設けられた第１接合部１４と、第２端部１５に設けられ、第１接合部１４より長手方向の長さが長い第２接合部２８とを備える。第２接合部２８の長さは、少なくともベルト本体１２の長さの１０％以上が好ましい。第２接合部２８が上記の長さを有することにより、ベルトを設置する機械に合わせて無端ベルトの長さを適宜調整することができる。したがって帯状ベルト１０Ｃは、汎用性を向上することができる。 In the case of the above-described embodiment, the first joint portion 14 and the second joint portion 16 have been described with respect to the case where only the directions are different and the others are the same, but the present invention is not limited to this. For example, the belt-like belt 10 </ b> C shown in FIG. 5 is provided at the belt main body 12, the first joint portion 14 provided at the first end portion 13, and the second end portion 15, and is longer than the first joint portion 14. A second joining portion 28 having a long length. The length of the second joint portion 28 is preferably at least 10% of the length of the belt body 12. Since the second joint portion 28 has the above length, the length of the endless belt can be appropriately adjusted according to the machine on which the belt is installed. Therefore, the belt-like belt 10C can improve versatility.
　上記実施形態の場合、第１凹部２０（第２凹部２１）は、第１接合部１４（第２接合部１６）の幅方向の中央を頂点とする三角形の２辺で形成されている場合について説明したが、本発明はこれに限らない。例えば、図６Ａに示すように、第１凹部（第２凹部）３４は、第１接合部（第２接合部）３２の幅方向の一方に偏った位置を頂点とする三角形の２辺で形成してもよい。図６Ｂに示すように、第１接合部（第２接合部）３３は、第１凹部（第２凹部）３５の谷形状を形成する三角形の２辺とベルト本体の側辺との接点が、ベルト本体の長さ方向にずれていてもよい。 In the case of the said embodiment, about the case where the 1st recessed part 20 (2nd recessed part 21) is formed in the triangle 2 side which makes the vertex the center of the width direction of the 1st junction part 14 (2nd junction part 16). Although described, the present invention is not limited to this. For example, as shown in FIG. 6A, the first concave portion (second concave portion) 34 is formed by two sides of a triangle whose apex is a position biased to one side in the width direction of the first joint portion (second joint portion) 32. May be. As shown in FIG. 6B, the first joint portion (second joint portion) 33 has a contact point between two sides of the triangle forming the valley shape of the first concave portion (second concave portion) 35 and the side side of the belt body. The belt main body may be displaced in the length direction.
　図６Ｃに示すように、第１凹部（第２凹部）４０は、円弧状であってもよい。円弧状である第１凹部（第２凹部）４０の曲率半径ｒは、Ｗ／２＜ｒ＜∞であるのが好ましい。 As shown in FIG. 6C, the first recess (second recess) 40 may be arcuate. The radius of curvature r of the first concave portion (second concave portion) 40 having an arc shape is preferably W / 2 <r <∞.
　上記実施形態の場合、第１接合部１４（第２接合部１６）は、一端に設けられた第１凹部２０（第２凹部２１）においてベルト本体の第１凸部１８（第２凸部１９）と接合されている場合について説明したが、本発明はこれに限らない。例えば、図７Ａに示すように、第１接合部（第２接合部）４２は、平坦部４４において、ベルト本体１２と接合されてもよい。本図に示す平坦部４４は、ベルト本体１２の長手方向に直交する直線状である。この場合、ベルト本体１２は、長手方向に直交する直線状の平坦部４６を有する。平坦部４４，４６は、ベルト本体１２の長手方向に直交する直線状に限らない。図７Ｂに示す第１接合部（第２接合部）４８は、長手方向に直交する方向に対し傾斜した平坦部５０を有する。この場合、ベルト本体１２は、平坦部５０に相補的な傾斜した平坦部５２を有する。 In the case of the said embodiment, the 1st junction part 14 (2nd junction part 16) is the 1st convex part 18 (2nd convex part 19) of the belt main body in the 1st recessed part 20 (2nd recessed part 21) provided in the end. However, the present invention is not limited to this. For example, as shown in FIG. 7A, the first joint portion (second joint portion) 42 may be joined to the belt body 12 at the flat portion 44. The flat portion 44 shown in the figure is a straight line perpendicular to the longitudinal direction of the belt body 12. In this case, the belt main body 12 has a linear flat portion 46 orthogonal to the longitudinal direction. The flat portions 44 and 46 are not limited to a linear shape orthogonal to the longitudinal direction of the belt body 12. 7B has the flat part 50 inclined with respect to the direction orthogonal to a longitudinal direction. In this case, the belt main body 12 has an inclined flat portion 52 that is complementary to the flat portion 50.
　第１接合部（第２接合部）は、山形状の凸部において、ベルト本体と接合されてもよい。この場合、ベルト本体は、上記凸部と相補的な谷形状の凹部を有する。上記凸部の外角θ１は、１８０°＜θ１＜３３０°であるのが好ましい。 The first joint portion (second joint portion) may be joined to the belt body at a mountain-shaped convex portion. In this case, the belt body has a valley-shaped concave portion complementary to the convex portion. The outer angle θ1 of the convex portion is preferably 180 ° <θ1 <330 °.
１０Ａ、１０Ｂ、１０Ｃ　帯状ベルト
１２　ベルト本体
１３　第１端部
１４　第１接合部（接合部）
１５　第２端部
１６　第２接合部（接合部）
１８　第１凸部
１９　第２凸部
２０　第１凹部
２１　第２凹部
２４　融着部
２５　無端ベルト
２６、２８　接合部 10A, 10B, 10C Belt-like belt 12 Belt body 13 First end 14 First joint (joint)
15 2nd edge part 16 2nd junction part (joint part)
18 1st convex part 19 2nd convex part 20 1st recessed part 21 2nd recessed part 24 Fusion part 25 Endless belts 26 and 28 Joint part

Claims (6)

  1. 熱硬化性樹脂で形成された帯状のベルト本体と、
    前記ベルト本体の少なくとも一端に設けられた接合部と
    を備え、
    前記接合部は、熱可塑性樹脂で形成された帯状ベルト。     A belt-like belt body formed of a thermosetting resin;
    A joint provided at at least one end of the belt body,
    The joining portion is a belt-like belt formed of a thermoplastic resin.
  2. 前記接合部は、一端に谷形状の第１凹部を有し、
    前記ベルト本体は、一端に前記第１凹部と相補的な山形状の第１凸部を有し、
    前記接合部と前記ベルト本体は、前記第１凹部と前記第１凸部において接合されている請求項１記載の帯状ベルト。     The joint has a valley-shaped first recess at one end,
    The belt body has a mountain-shaped first convex portion complementary to the first concave portion at one end,
    The belt-like belt according to claim 1, wherein the joining portion and the belt main body are joined at the first concave portion and the first convex portion.
  3. 前記接合部は、前記ベルト本体に接合されていない他端に谷形状の第２凹部を有し、
    前記ベルト本体は、他端に前記第２凹部と相補的な山形状の第２凸部を有する請求項２記載の帯状ベルト。     The joining portion has a valley-shaped second recess at the other end not joined to the belt body,
    The belt-like belt according to claim 2, wherein the belt main body has a mountain-shaped second convex portion complementary to the second concave portion at the other end.
  4. 前記接合部の長さは、１０ｍｍ以上である請求項１～３のいずれか１項記載の帯状ベルト。 The belt-like belt according to any one of claims 1 to 3, wherein a length of the joining portion is 10 mm or more.
  5. 前記接合部は、
    前記ベルト本体の一端に設けられた第１接合部と、
    前記ベルト本体の他端に設けられた第２接合部と
    を有し、
    前記第２接合部の長さが、前記第１接合部より長く、少なくとも前記ベルト本体の長さの１０％以上である請求項１～３のいずれか１項記載の帯状ベルト。     The joint is
    A first joint provided at one end of the belt body;
    A second joint provided at the other end of the belt body,
    The belt-like belt according to any one of claims 1 to 3, wherein a length of the second joint portion is longer than the first joint portion and is at least 10% of a length of the belt body.
  6. 熱硬化性樹脂で形成された帯状のベルト本体と、
    前記ベルト本体の両端部の間に設けられた融着部と
    を備え、
    前記融着部は、熱可塑性樹脂で形成され、両端に谷形状の凹部を有し、
    前記ベルト本体は、両端に前記凹部と相補的な山形状の凸部を有し、
    前記融着部と前記ベルト本体は、前記凹部と前記凸部において接合されている無端ベルト。     A belt-like belt body formed of a thermosetting resin;
    A fusion part provided between both ends of the belt body,
    The fused portion is formed of a thermoplastic resin, and has a valley-shaped concave portion at both ends.
    The belt body has a mountain-shaped convex part complementary to the concave part at both ends,
    The fused part and the belt main body are endless belts joined at the concave part and the convex part.
PCT/JP2018/015221 2017-04-13 2018-04-11 Strip-like belt and endless belt WO2018190369A1 (en)

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JP2017080012A JP2018177469A (en) 2017-04-13 2017-04-13 Strip-like belt and endless belt

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3004708U (en) * 1994-05-27 1994-11-22 三ツ星ベルト株式会社 Joint structure of toothed belt for transportation
JP2002154171A (en) * 2000-11-20 2002-05-28 Nitto Denko Corp Method for manufacturing polyimide joined belt
JP2009525444A (en) * 2006-01-31 2009-07-09 サーモドライヴ エルエルシー Fingerprinted thermoplastic belt connector
JP2011251823A (en) * 2010-06-03 2011-12-15 Bando Chemical Industries Ltd Conveyor belt and method of manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3004708U (en) * 1994-05-27 1994-11-22 三ツ星ベルト株式会社 Joint structure of toothed belt for transportation
JP2002154171A (en) * 2000-11-20 2002-05-28 Nitto Denko Corp Method for manufacturing polyimide joined belt
JP2009525444A (en) * 2006-01-31 2009-07-09 サーモドライヴ エルエルシー Fingerprinted thermoplastic belt connector
JP2011251823A (en) * 2010-06-03 2011-12-15 Bando Chemical Industries Ltd Conveyor belt and method of manufacturing the same

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