JP6062292B2 - Conveyor belt - Google Patents
Conveyor belt Download PDFInfo
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- JP6062292B2 JP6062292B2 JP2013053819A JP2013053819A JP6062292B2 JP 6062292 B2 JP6062292 B2 JP 6062292B2 JP 2013053819 A JP2013053819 A JP 2013053819A JP 2013053819 A JP2013053819 A JP 2013053819A JP 6062292 B2 JP6062292 B2 JP 6062292B2
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- 230000003014 reinforcing effect Effects 0.000 claims description 114
- 229920002635 polyurethane Polymers 0.000 claims description 20
- 239000004814 polyurethane Substances 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 11
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 description 19
- 230000002787 reinforcement Effects 0.000 description 12
- 239000012790 adhesive layer Substances 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 210000001145 finger joint Anatomy 0.000 description 3
- -1 fluororesin Polymers 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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- Belt Conveyors (AREA)
Description
本発明は、無端状の搬送ベルトに関する。 The present invention relates to an endless conveyor belt.
搬送ベルトには、ベルト本体における長手方向の一端及び他端を接続することによって形成された、無端状のものがある。上記一端及び他端の接続構造としては、オーバーラップジョイント構造、フィンガージョイント構造等が知られている。オーバーラップジョイント構造は、上記一端及び他端を重ね合わせて接続する構造である。フィンガージョイント構造は、上記一端及び他端をそれぞれ凹凸形状とし、凹凸を嵌合させて上記一端及び他端を接続する構造である。また、フィンガージョイント構造には、上記一端及び他端のそれぞれに複数の短冊状の凸部を設けた短冊形ジョイント構造、上記一端及び他端をそれぞれジグザグ形状とした電光形ジョイント構造（特許文献１参照）等がある。 There is an endless belt formed by connecting one end and the other end in the longitudinal direction of the belt body. As the connection structure of the one end and the other end, an overlap joint structure, a finger joint structure, and the like are known. The overlap joint structure is a structure in which the one end and the other end are overlapped and connected. The finger joint structure is a structure in which the one end and the other end are formed in an uneven shape, and the one end and the other end are connected by fitting the unevenness. In addition, the finger joint structure includes a strip-shaped joint structure in which a plurality of strip-shaped protrusions are provided on each of the one end and the other end, and an electro-optic joint structure in which the one end and the other end are each zigzag shaped (Patent Document 1). See).
特許文献１では、接続部の強度を確保するため、ベルト本体における上記一端及び他端の接続部を覆う領域に矩形状の補強部材（補強材４）を接着することが提案されている。 Patent Document 1 proposes that a rectangular reinforcing member (reinforcing material 4) be bonded to a region of the belt body covering the connecting portion at one end and the other end in order to ensure the strength of the connecting portion.
しかしながら、ベルトにおいて補強部材が設けられた部分は、他の部分に比べ、剛性が高くなる。そのため、特許文献１のように補強部材の面積が比較的大きい場合、ベルトの屈曲性が低下し、特に小径のプーリやナイフエッジを具備した搬送装置へのベルトの適用が困難になり得る。 However, the portion of the belt where the reinforcing member is provided has higher rigidity than the other portions. Therefore, when the area of the reinforcing member is relatively large as in Patent Document 1, the flexibility of the belt is lowered, and it may be difficult to apply the belt to a conveying device having a small-diameter pulley or knife edge.
本発明の目的は、接続部の強度と屈曲性との両方を確保することができる、搬送ベルトを提供することである。 The objective of this invention is providing the conveyance belt which can ensure both the intensity | strength and flexibility of a connection part.
上記目的を達成するため、本発明の観点によると、長手方向の一端及び他端がそれぞれジグザグ形状であり、前記一端及び前記他端が嵌合するように接続された、ベルト本体と、前記ベルト本体における前記一端及び前記他端の接続部を覆う領域に接着された、前記接続部の形状に対応する形状を有する、補強部材と、を備え、前記接続部は、前記ベルト本体の前記長手方向に交差する幅方向に沿って前記一端側及び前記他端側に交互に突出した、複数の接続凸部を含み、前記補強部材は、前記複数の接続凸部のそれぞれに対応するように前記幅方向に沿って前記一端側及び前記他端側に交互に突出した、複数の補強凸部を含むことを特徴とする、搬送ベルトが提供される。 In order to achieve the above object, according to an aspect of the present invention, one end and the other end in the longitudinal direction are each zigzag-shaped, and the one end and the other end are connected so as to be fitted with each other, and the belt A reinforcing member having a shape corresponding to the shape of the connecting portion, which is bonded to a region covering the connecting portion of the one end and the other end of the main body, and the connecting portion is the longitudinal direction of the belt main body. A plurality of connection projections alternately projecting toward the one end side and the other end side along a width direction intersecting the width, and the reinforcing member corresponds to each of the plurality of connection projections A conveyor belt is provided, comprising a plurality of reinforcing protrusions that alternately protrude toward the one end side and the other end side along a direction.
上記観点によれば、接続部を補強するために補強部材を設けた場合において、補強部材の面積を抑制することができる。これにより、接続部の強度と屈曲性との両方を確保することができる。 According to the said viewpoint, when providing a reinforcement member in order to reinforce a connection part, the area of a reinforcement member can be suppressed. Thereby, both the intensity | strength and flexibility of a connection part are securable.
前記補強凸部における前記幅方向の長さが、前記接続凸部における前記幅方向の長さと同じであってよい。前記補強部材は、前記幅方向に延在した基部をさらに含み、前記複数の補強凸部が前記基部から突出し、前記基部における前記長手方向の長さが、前記接続凸部の突出長さ以下であってよい。前記接続部は、前記ジグザグ形状に対応するように前記幅方向に沿って連続的に設けられた複数の接続線分を含み、互いに隣接する２つの前記接続線分が１の前記接続凸部を構成し、前記補強部材は、前記接続部を挟んで前記一端側及び前記他端側のそれぞれに設けられた端部が、前記複数の接続線分のそれぞれに対応するように前記幅方向に沿って連続的に設けられた複数の補強線分を含み、互いに隣接する２つの前記補強線分が１の前記補強凸部を構成し、互いに対応する前記補強線分と前記接続線分との間隔が、１ｍｍ以上であってよい。前記補強凸部の突出長さが、前記接続凸部の突出長さの１／２〜２倍であってよい。上記各構成によれば、より確実に、補強部材の面積を抑制し、接続部の強度と屈曲性との両方を確保することができる。 The length in the width direction of the reinforcing convex portion may be the same as the length in the width direction of the connection convex portion. The reinforcing member further includes a base portion extending in the width direction, the plurality of reinforcing convex portions project from the base portion, and a length in the longitudinal direction of the base portion is equal to or less than a projecting length of the connection convex portion. It may be. The connection portion includes a plurality of connection line segments continuously provided along the width direction so as to correspond to the zigzag shape, and the two adjacent connection line segments are connected to the connection convex portion. The reinforcing member is arranged along the width direction so that end portions provided on each of the one end side and the other end side with respect to the connecting portion correspond to each of the plurality of connecting line segments. A plurality of reinforcing line segments continuously provided, and the two adjacent reinforcing line segments constitute one reinforcing convex portion, and a distance between the corresponding reinforcing line segment and the connecting line segment. May be 1 mm or more. The protrusion length of the reinforcing protrusion may be 1/2 to 2 times the protrusion length of the connection protrusion. According to each said structure, the area of a reinforcement member can be suppressed more reliably and both the intensity | strength and flexibility of a connection part can be ensured.
前記補強凸部の先端が丸みを帯びていてよい。先端が尖っていると、補強部材がベルト本体から剥離し易い。上記構成によれば、補強部材のベルト本体からの剥離を抑制することができる。 The tip of the reinforcing convex part may be rounded. When the tip is sharp, the reinforcing member is easily peeled from the belt body. According to the said structure, peeling from the belt main body of a reinforcement member can be suppressed.
前記補強部材は、綿繊維、ポリエステル繊維、ポリアミド繊維、及びポリオレフィン繊維の少なくともいずれかから構成される第１部材と、ポリウレタンから構成される第２部材とを含み、前記第１部材と前記ベルト本体との間に前記第２部材が介在してよい。上記構成によれば、第１部材とベルト本体との間に第２部材を介在させることで、補強部材をベルト本体に強固に接着することができる。 The reinforcing member includes a first member composed of at least one of cotton fiber, polyester fiber, polyamide fiber, and polyolefin fiber, and a second member composed of polyurethane, and the first member and the belt body The second member may be interposed between the first member and the second member. According to the said structure, a reinforcement member can be firmly adhere | attached on a belt main body by interposing a 2nd member between a 1st member and a belt main body.
前記第１部材の厚みが０．１〜０．３ｍｍであってよい。第１部材の厚みが０．１ｍｍ未満であると、補強部材による補強効果を確実に得ることができず、接続部の強度が不足する場合がある。第１部材の厚みが０．３ｍｍを超えると、屈曲性が低下し得る。上記構成によれば、より確実に、接続部の強度と屈曲性との両方を確保することができる。 The thickness of the first member may be 0.1 to 0.3 mm. If the thickness of the first member is less than 0.1 mm, the reinforcing effect by the reinforcing member cannot be obtained with certainty, and the strength of the connecting portion may be insufficient. If the thickness of the first member exceeds 0.3 mm, the flexibility may be lowered. According to the said structure, both the intensity | strength and flexibility of a connection part can be ensured more reliably.
前記第２部材の厚みが０．１〜０．２ｍｍであってよい。第２部材の厚みが０．１ｍｍ未満であると、補強部材のベルト本体に対する接着力が不十分になり得る。第２部材の厚みが０．２ｍｍを超えると、補強部材全体の厚みが過大になり、ベルトにおける補強部材が設けられた部分の段差が大きくなることから、屈曲性が低下し、また、ベルトの走行時において音や振動が大きくなるという問題が生じ得る。上記構成によれば、当該問題を抑制することができる。 The thickness of the second member may be 0.1 to 0.2 mm. If the thickness of the second member is less than 0.1 mm, the adhesive force of the reinforcing member to the belt body may be insufficient. If the thickness of the second member exceeds 0.2 mm, the thickness of the entire reinforcing member becomes excessive, and the step of the portion where the reinforcing member is provided in the belt becomes large. There may be a problem that sound and vibration increase during traveling. According to the above configuration, the problem can be suppressed.
本発明によると、接続部を補強するために補強部材を設けた場合において、補強部材の面積を抑制することができる。これにより、接続部の強度と屈曲性との両方を確保することができる。 According to the present invention, when a reinforcing member is provided to reinforce the connection portion, the area of the reinforcing member can be suppressed. Thereby, both the intensity | strength and flexibility of a connection part are securable.
以下、本発明の好適な実施の形態について、図面を参照しつつ説明する。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
本発明の一実施形態に係る搬送ベルト１は、図１に示すように、ベルト本体２及び補強部材３を含む。 A conveyor belt 1 according to an embodiment of the present invention includes a belt body 2 and a reinforcing member 3 as shown in FIG.
ベルト本体２は、長尺な帯状の部材である。ベルト本体２における長手方向（以下、単に「長手方向」と称す。）の一端２ａ及び他端２ｂは、それぞれジグザグ形状であり、嵌合するように接続されている。一端２ａ及び他端２ｂは、加熱・加圧による圧着、これらの間に充填された接着剤等によって、互いに接続され、接続部２ｃを構成している。接続部２ｃの形状は、一端２ａ及び他端２ｂの先端の形状（ジグザグ形状）と同じである。 The belt body 2 is a long belt-like member. One end 2a and the other end 2b in the longitudinal direction (hereinafter simply referred to as “longitudinal direction”) of the belt body 2 are each zigzag-shaped and connected so as to be fitted. The one end 2a and the other end 2b are connected to each other by pressure bonding by heating and pressurization, an adhesive filled between them, and the like, and constitute a connecting portion 2c. The shape of the connecting portion 2c is the same as the shape of the tip of the one end 2a and the other end 2b (zigzag shape).
補強部材３は、ベルト本体２における接続部２ｃを覆う領域に接着されており、接続部２ｃの形状に対応する形状（ジグザグ形状）を有する。補強部材３は、例えば、矩形状の基材を、Ｘ，Ｙ軸カッティングプロッタ、打ち抜き等で裁断することにより、ジグザグ形状に形成されたものである。 The reinforcing member 3 is bonded to a region of the belt main body 2 that covers the connection portion 2c, and has a shape (zigzag shape) corresponding to the shape of the connection portion 2c. The reinforcing member 3 is formed in a zigzag shape, for example, by cutting a rectangular base material with an X, Y axis cutting plotter, punching or the like.
接続部２ｃは、ベルト本体２の幅方向（長手方向に直交する方向。以下、単に「幅方向」と称す。）に沿って一端２ａ側及び他端２ｂ側に交互に突出した、複数の接続凸部２ｐを含む。補強部材３は、複数の接続凸部２ｐのそれぞれに対応するように幅方向に沿って一端２ａ側及び他端２ｂ側に交互に突出した、複数の補強凸部３ｐを含む。 The connecting portion 2c is a plurality of connections that alternately protrude toward the one end 2a side and the other end 2b side along the width direction of the belt body 2 (a direction orthogonal to the longitudinal direction; hereinafter, simply referred to as “width direction”). Convex part 2p is included. The reinforcing member 3 includes a plurality of reinforcing convex portions 3p that alternately protrude toward the one end 2a side and the other end 2b side along the width direction so as to correspond to each of the plurality of connecting convex portions 2p.
また、接続部２ｃは、ジグザグ形状に対応するように幅方向に沿って連続的に設けられた複数の接続線分２ｒを含む。互いに隣接する２つの接続線分２ｒが、１の接続凸部２ｐを構成している。補強部材３は、接続部２ｃを挟んで一端２ａ側及び他端２ｂ側のそれぞれに設けられた端部が、複数の接続線分２ｒのそれぞれに対応するように幅方向に沿って連続的に設けられた複数の補強線分３ｒを含む。互いに隣接する２つの補強線分３ｒが、１の補強凸部３ｐを構成している。 Further, the connecting portion 2c includes a plurality of connecting line segments 2r provided continuously along the width direction so as to correspond to the zigzag shape. Two connecting line segments 2r adjacent to each other constitute one connecting convex portion 2p. The reinforcing member 3 is continuously provided along the width direction so that the end portions provided on the one end 2a side and the other end 2b side across the connection portion 2c correspond to each of the plurality of connection line segments 2r. It includes a plurality of reinforcing line segments 3r provided. Two reinforcing line segments 3r adjacent to each other constitute one reinforcing protrusion 3p.
補強部材３は、また、図２に示すように、幅方向に延在した矩形状の基部３ｑを含む。複数の補強凸部３ｐが基部３ｑから突出している。 As shown in FIG. 2, the reinforcing member 3 also includes a rectangular base 3 q extending in the width direction. A plurality of reinforcing protrusions 3p protrude from the base 3q.
複数の接続凸部２ｐは、一端２ａ側から他端２ｂ側に突出するものと、他端２ｂ側から一端２ａ側に突出するものとに分類され、これらは互いに部分的に重複している。 The plurality of connecting convex portions 2p are classified into one projecting from the one end 2a side to the other end 2b side and one projecting from the other end 2b side to the one end 2a side, and these partially overlap each other.
複数の接続凸部２ｐは、形状及びサイズが互いに同じであり、それぞれ鋭角の先端２ｐ１を有する。複数の補強凸部３ｐは、形状及びサイズが互いに同じであり、それぞれ鋭角の先端３ｐ１を有するが、当該先端３ｐ１は若干丸みを帯びている。 The plurality of connecting protrusions 2p have the same shape and size, and each has an acute-angled tip 2p1. The plurality of reinforcing protrusions 3p have the same shape and size, and each has an acute-angled tip 3p1, but the tips 3p1 are slightly rounded.
接続部２ｃは、接続部２ｃの長手方向における中心線Ｏ２（図１参照）に関して、対称な形状を有する。補強部材３は、補強部材３の長手方向における中心線Ｏ３（図２参照）に関して、対称な形状を有する。補強部材３は、中心線Ｏ３が中心線Ｏ２と一致するように、配置されている。即ち、補強部材３は、接続部２ｃを挟んで両側に、中心線Ｏ２関して対称に配置されている。 The connection part 2c has a symmetrical shape with respect to the center line O2 (see FIG. 1) in the longitudinal direction of the connection part 2c. The reinforcing member 3 has a symmetrical shape with respect to the center line O3 (see FIG. 2) in the longitudinal direction of the reinforcing member 3. The reinforcing member 3 is arranged so that the center line O3 coincides with the center line O2. That is, the reinforcing member 3 is disposed symmetrically with respect to the center line O2 on both sides of the connecting portion 2c.
その他、補強部材３は、接続部２ｃ及びベルト本体２と、以下のような幾何学的関係を有する。
・補強凸部３ｐにおける幅方向の長さＨ１が、接続凸部２ｐにおける幅方向の長さＨ２と同じである。
・基部３ｑにおける長手方向の長さＡが、接続凸部２ｐの突出長さＢ以下である。
・互いに対応する補強線分３ｒと接続線分２ｒとの間隔Ｃが、１ｍｍ以上である
・補強凸部３ｐの突出長さＧが、接続凸部２ｐの突出長さＢの１／２〜２倍である。
・補強部材３の幅方向の長さＥが、ベルト本体２の幅方向の長さＷと実質的に同じである。
In addition, the reinforcing member 3 has the following geometric relationship with the connecting portion 2c and the belt body 2.
The length H1 in the width direction of the reinforcing projection 3p is the same as the length H2 in the width direction of the connection projection 2p.
-The length A in the longitudinal direction of the base portion 3q is equal to or shorter than the protruding length B of the connecting convex portion 2p.
The interval C between the reinforcing line segment 3r and the connecting line segment 2r corresponding to each other is 1 mm or more. The protruding length G of the reinforcing convex part 3p is 1/2 to 2 of the protruding length B of the connecting convex part 2p. Is double.
The length E of the reinforcing member 3 in the width direction is substantially the same as the length W of the belt body 2 in the width direction.
ベルト本体２は、図３に示すように、帆布からなる芯体２ｘと、芯体２ｘに含浸・被覆処理を施すことにより形成された接着層２ｙとから構成されている。芯体２ｘは、綿繊維、ポリアミド繊維、ポリエステル繊維等からなり、平織、綾織、朱子織等で形成された、織布である。接着層２ｙは、ポリウレタン系、ポリエステル系、ポリオレフィン系、ポリアミド系等の、熱可塑性樹脂からなる。接着層２ｙは、芯体２ｘの表面及び裏面を覆っている。接着層２ｙは、例えば、２つのローラに芯体２ｘを巻回させた状態で、芯体２ｘの表面側から糊引き処理で接着層２ｙとなる材料を塗布し、芯体２ｘの裏面側に当該材料をはみ出させることにより、形成してよい。或いは、ディップ処理により、接着層２ｙを形成してもよい。 As shown in FIG. 3, the belt main body 2 includes a core body 2x made of canvas and an adhesive layer 2y formed by impregnating / coating the core body 2x. The core body 2x is a woven fabric made of cotton fiber, polyamide fiber, polyester fiber, or the like and formed of plain weave, twill weave, satin weave, or the like. The adhesive layer 2y is made of a thermoplastic resin such as polyurethane, polyester, polyolefin, or polyamide. The adhesive layer 2y covers the front surface and the back surface of the core body 2x. For example, in a state where the core body 2x is wound around two rollers, the adhesive layer 2y is coated with a material that becomes the adhesive layer 2y by the pasting process from the front surface side of the core body 2x, and is applied to the back surface side of the core body 2x. The material may be formed by protruding. Alternatively, the adhesive layer 2y may be formed by dipping.
補強部材３は、帆布３ｘと、ポリウレタンシート３ｙとから構成されている。帆布３ｘは、綿繊維、ポリエステル繊維、ポリアミド繊維、及びポリオレフィン繊維の少なくともいずれかから構成される織布である。ポリウレタンシート３ｙは、ポリウレタンから構成され、帆布３ｘと同じ平面形状を有し、帆布３ｘの表面に接着されている。帆布３ｘの厚みは０．１〜０．３ｍｍであり、ポリウレタンシート３ｙの厚みは０．１〜０．２ｍｍである。帆布３ｘとベルト本体２との間に、ポリウレタンシート３ｙが介在している。補強部材３は、ポリウレタンシート３ｙにおける帆布３ｘと接着された面とは反対側の面に設けられた接着剤（例えば、ポリウレタン系、ポリエステル系、ポリオレフィン系等の、接着剤）４を介して、加熱プレス、高周波プレス等により、ベルト本体２に接着されている。 The reinforcing member 3 includes a canvas 3x and a polyurethane sheet 3y. The canvas 3x is a woven fabric composed of at least one of cotton fiber, polyester fiber, polyamide fiber, and polyolefin fiber. The polyurethane sheet 3y is made of polyurethane, has the same planar shape as the canvas 3x, and is bonded to the surface of the canvas 3x. The thickness of the canvas 3x is 0.1 to 0.3 mm, and the thickness of the polyurethane sheet 3y is 0.1 to 0.2 mm. A polyurethane sheet 3 y is interposed between the canvas 3 x and the belt body 2. The reinforcing member 3 is connected via an adhesive 4 (for example, an adhesive such as polyurethane, polyester, polyolefin, etc.) provided on the surface opposite to the surface bonded to the canvas 3x in the polyurethane sheet 3y. The belt body 2 is bonded by a heating press, a high frequency press or the like.
ベルト１は、図４に示すように、小径のプーリ１０ｂやナイフエッジ１０ｃを具備した搬送装置１０に、好適に適用可能である。搬送装置１０では、ベルト１がプーリ１０ａ，１０ｂ及びナイフエッジ１０ｃに巻回されており、大径のプーリ１０ａの駆動に伴い、小径のプーリ１０ｂが従動し、ベルト１が走行する。 As shown in FIG. 4, the belt 1 can be suitably applied to a conveying device 10 having a small-diameter pulley 10b and a knife edge 10c. In the conveying device 10, the belt 1 is wound around the pulleys 10a and 10b and the knife edge 10c, and the small-diameter pulley 10b is driven to drive the belt 1 as the large-diameter pulley 10a is driven.
以上に述べたように、本実施形態によれば、接続部２ｃを補強するために補強部材３を設けた場合において、補強部材３の面積を抑制することができる。これにより、接続部２ｃの強度と屈曲性との両方を確保することができる。 As described above, according to this embodiment, when the reinforcing member 3 is provided to reinforce the connection portion 2c, the area of the reinforcing member 3 can be suppressed. Thereby, both the intensity | strength and bendability of the connection part 2c are securable.
本実施形態によれば、補強部材３が接続部２ｃ及びベルト本体２と上記のような幾何学的関係を有することで、より確実に、補強部材３の面積を抑制し、接続部２ｃの強度と屈曲性との両方を確保することができる。 According to the present embodiment, the reinforcing member 3 has the geometrical relationship as described above with the connecting portion 2c and the belt body 2, thereby more reliably suppressing the area of the reinforcing member 3 and the strength of the connecting portion 2c. Both bendability and flexibility can be ensured.
補強凸部３ｐの先端３ｐ１が尖っていると、補強部材３がベルト本体２から剥離し易い。本実施形態によれば、先端３ｐ１が丸みを帯びているため、補強部材３のベルト本体２からの剥離を抑制することができる。 When the tip 3p1 of the reinforcing protrusion 3p is sharp, the reinforcing member 3 is easily peeled from the belt body 2. According to this embodiment, since the tip 3p1 is rounded, peeling of the reinforcing member 3 from the belt body 2 can be suppressed.
本実施形態によれば、帆布３ｘとベルト本体２との間にポリウレタンシート３ｙを介在させることで、補強部材３をベルト本体２に強固に接着することができる。 According to this embodiment, the reinforcing member 3 can be firmly bonded to the belt main body 2 by interposing the polyurethane sheet 3 y between the canvas 3 x and the belt main body 2.
帆布３ｘの厚みが０．１ｍｍ未満であると、補強部材３による補強効果を確実に得ることができず、接続部２ｃの強度が不足する場合がある。帆布３ｘの厚みが０．３ｍｍを超えると、屈曲性が低下し得る。本実施形態によれば、帆布３ｘの厚みが０．１〜０．３ｍｍであることから、より確実に、接続部２ｃの強度と屈曲性との両方を確保することができる。 If the thickness of the canvas 3x is less than 0.1 mm, the reinforcing effect by the reinforcing member 3 cannot be obtained with certainty, and the strength of the connecting portion 2c may be insufficient. If the thickness of the canvas 3x exceeds 0.3 mm, the flexibility may be lowered. According to this embodiment, since the thickness of the canvas 3x is 0.1 to 0.3 mm, it is possible to ensure both the strength and the flexibility of the connecting portion 2c more reliably.
ポリウレタンシート３ｙの厚みが０．１ｍｍ未満であると、補強部材３のベルト本体２に対する接着力が不十分になり得る。ポリウレタンシート３ｙの厚みが０．２ｍｍを超えると、補強部材３全体の厚みが過大になり、ベルト１における補強部材３が設けられた部分の段差が大きくなることから、屈曲性が低下し、また、ベルト１の走行時において音や振動が大きくなるという問題が生じ得る。本実施形態によれば、ポリウレタンシート３ｙの厚みが０．１〜０．２ｍｍであることから、当該問題を抑制することができる。 If the thickness of the polyurethane sheet 3y is less than 0.1 mm, the adhesive force of the reinforcing member 3 to the belt body 2 may be insufficient. When the thickness of the polyurethane sheet 3y exceeds 0.2 mm, the thickness of the entire reinforcing member 3 becomes excessive, and the step in the portion where the reinforcing member 3 is provided in the belt 1 becomes large. When the belt 1 is running, there may be a problem that sound and vibration increase. According to this embodiment, since the thickness of the polyurethane sheet 3y is 0.1-0.2 mm, the said problem can be suppressed.
以下、実施例及び比較例に基づいて、本発明について説明する。 Hereinafter, the present invention will be described based on examples and comparative examples.
本願発明者等は、表１に示すように、実施例及び比較例に係る搬送ベルトについて、屈曲性、接続部２ｃの強度、及び、耐久性を評価するための試験を行った。 As shown in Table 1, the inventors of the present application conducted tests for evaluating the flexibility, the strength of the connecting portion 2c, and the durability of the conveyor belts according to the examples and the comparative examples.
表１において、Ａ、Ｂ，Ｃ，Ｅ，Ｗ，Ｇ，Ｈ１，Ｈ２は、それぞれ、図１及び／又は図２に示されると共に、上述した部分である。Ｄは、図１に示すように、互いに対応する補強凸部３ｐと接続凸部２ｐとの先端３ｐ１，２ｐ１同士の間隔である。Ｆは、図２に示すように、補強部材３の長手方向の長さである。Ｉは、補強凸部３ｐの先端３ｐ１の丸みの半径である。 In Table 1, A, B, C, E, W, G, H1, and H2 are shown in FIG. 1 and / or FIG. As shown in FIG. 1, D is the distance between the tips 3p1 and 2p1 of the reinforcing convex portion 3p and the connecting convex portion 2p corresponding to each other. As shown in FIG. 2, F is the length of the reinforcing member 3 in the longitudinal direction. I is the radius of the roundness of the tip 3p1 of the reinforcing projection 3p.
接続部２ｃは、上述の実施形態と同様、ジグザグ形状である。実施例１〜７は、補強部材３が接続部２ｃの形状に対応する形状（ジグザグ形状）を有し、比較例１，２は、補強部材３が接続部２ｃの形状に対応しない形状（矩形状）を有する。比較例１は、補強部材３をポリウレタンシート３ｙのみで（帆布３ｘを省略して）構成したものである。 The connecting portion 2c has a zigzag shape as in the above-described embodiment. In Examples 1 to 7, the reinforcing member 3 has a shape (zigzag shape) corresponding to the shape of the connecting portion 2c. In Comparative Examples 1 and 2, the reinforcing member 3 does not correspond to the shape of the connecting portion 2c (rectangular shape). Shape). In Comparative Example 1, the reinforcing member 3 is configured by only the polyurethane sheet 3y (omitting the canvas 3x).
実施例１は、上述の実施形態に係る搬送ベルト１と同様の構成を有する。実施例２，３は、実施例１に対して、Ａの値（及びこれに伴うＤ，Ｆ等の値）を変更したものである。実施例４，５は、実施例１に対して、Ｇの値（及びこれに伴うＤ，Ｆ等の値）を変更したものである。実施例６は、実施例１に対して、補強部材３の基部３ｑを省略し（図７参照）、且つ、Ｃの値（及びこれに伴うＤ，Ｆ等の値）を変更したものである。実施例７は、実施例１に対して、補強部材３の基部３ｑを省略し（図７参照）、且つ、補強凸部３ｐの先端３ｐ１が丸みを帯びずに尖っているものである。 Example 1 has the same configuration as the conveyance belt 1 according to the above-described embodiment. The second and third embodiments are different from the first embodiment in the value of A (and the values of D, F, etc. associated therewith). The fourth and fifth embodiments are different from the first embodiment in the value of G (and the values of D, F, etc. associated therewith). The sixth embodiment is different from the first embodiment in that the base 3q of the reinforcing member 3 is omitted (see FIG. 7) and the value of C (and the values of D, F, etc. associated therewith) is changed. . In the seventh embodiment, the base 3q of the reinforcing member 3 is omitted from the first embodiment (see FIG. 7), and the tip 3p1 of the reinforcing convex portion 3p is pointed without being rounded.
＜屈曲性について＞
屈曲性を評価するための試験では、図５に示すように、搬送ベルト１を補強部材３がプーリ５０ａ，５０ｂの周面に対向するように（即ち、内側に配置されるように）してプーリ５０ａ，５０ｂに巻回し、接続部２ｃ及び補強部材３がプーリ５０ａの周面上に位置するように配置した。そして、プーリ５０ａを固定しつつプーリ５０ｂに荷重Ｐを付加して、膨らみ距離Ｌを測定した。このとき用いた搬送ベルト１は幅５０ｍｍ・長さ５００ｍｍであり、プーリ５０ａ，５０ｂは共に直径１０ｍｍである。荷重Ｐは、搬送ベルト１の張力が０．１Ｎ／ｍｍとなるように設定した。膨らみ距離Ｌは、プーリ５０ａの下端Ｔを通る水平面における、搬送ベルト１のプーリ５０ａに巻回された部分の距離である。
<About flexibility>
In the test for evaluating the flexibility, as shown in FIG. 5, the conveyor belt 1 is placed so that the reinforcing member 3 faces the peripheral surfaces of the pulleys 50a and 50b (that is, arranged inside). It wound around the pulleys 50a and 50b, and arrange | positioned so that the connection part 2c and the reinforcement member 3 might be located on the surrounding surface of the pulley 50a. And the load P was added to the pulley 50b, fixing the pulley 50a, and the swelling distance L was measured. The conveyor belt 1 used at this time has a width of 50 mm and a length of 500 mm, and both the pulleys 50a and 50b have a diameter of 10 mm. The load P was set so that the tension of the conveyor belt 1 was 0.1 N / mm. The swelling distance L is a distance of a portion wound around the pulley 50a of the conveyor belt 1 in a horizontal plane passing through the lower end T of the pulley 50a.
表１に示すように、補強部材３を帆布３ｘとポリウレタンシート３ｙとから構成したもの（比較例１を除く、実施例１〜７及び比較例２）を比べると、実施例１〜７は全て、比較例２よりも、膨らみ距離Ｌが小さい（即ち、屈曲性が高い）。比較例１は、実施例５と同じ膨らみ距離Ｌであり、屈曲性が比較的高い。これは、比較例１において、補強部材３をポリウレタンシート３ｙのみで（帆布３ｘを省略して）構成したためと推察される。 As shown in Table 1, when the reinforcing members 3 composed of the canvas 3x and the polyurethane sheet 3y (Examples 1 to 7 and Comparative Example 2 excluding Comparative Example 1) are compared, Examples 1 to 7 are all The swell distance L is smaller than that of Comparative Example 2 (that is, the flexibility is high). Comparative Example 1 has the same bulging distance L as Example 5, and has a relatively high flexibility. This is presumably because, in Comparative Example 1, the reinforcing member 3 is composed of only the polyurethane sheet 3y (omitting the canvas 3x).
実施例の中では、実施例１，２，３の試験結果から、Ａの値が大きくなるほど、膨らみ距離Ｌが大きく（即ち、屈曲性が低く）なることがわかる。実施例１，４の試験結果から、Ｇの値を小さくしても、膨らみ距離Ｌが略同じ（即ち、屈曲性が略同じ）であることがわかる。ただし、Ｇの値が小さくなるほど、補強部材３のベルト本体２に対する位置合せが困難になり得る。実施例１，５の試験結果から、Ｇの値が大きくなるほど、膨らみ距離Ｌが大きく（即ち、屈曲性が低く）なることがわかる。実施例６，７は、実施例１と膨らみ距離Ｌが同じ（即ち、屈曲性が同じ）である。 Among the examples, it can be seen from the test results of Examples 1, 2, and 3 that the greater the value of A, the greater the bulge distance L (that is, the lower the flexibility). From the test results of Examples 1 and 4, it can be seen that even if the value of G is reduced, the bulge distance L is substantially the same (that is, the flexibility is substantially the same). However, the smaller the value of G, the more difficult it is to align the reinforcing member 3 with the belt body 2. From the test results of Examples 1 and 5, it can be seen that the greater the value of G, the greater the bulge distance L (that is, the lower the flexibility). Examples 6 and 7 have the same bulging distance L as that of Example 1 (that is, the same flexibility).
＜接続部の強度について＞
接続部２ｃの強度を評価するための試験では、幅５０ｍｍ・長さ５００ｍｍの搬送ベルト１を接続部２ｃが中央に位置するようにアムスラー試験機に取り付けて、引張速度１００ｍｍ／ｍｉｎにて引張試験を行い、接続部２ｃの強度を測定した。
<About the strength of the connection>
In the test for evaluating the strength of the connecting portion 2c, the conveyance belt 1 having a width of 50 mm and a length of 500 mm is attached to an Amsler tester so that the connecting portion 2c is located in the center, and a tensile test is performed at a pulling speed of 100 mm / min. And the strength of the connecting portion 2c was measured.
表１に示すように、実施例１〜５，７は、接続部２ｃの強度が、比較例２と略同じである。実施例６及び比較例１は、他の実施例１〜５，７及び比較例１と比べ、接続部２ｃの強度が低い。これは、実施例６においては、Ｃの値を小さくした分、補強部材３の面積が小さくなったこと、比較例１においては、補強部材３をポリウレタンシート３ｙのみで（帆布３ｘを省略して）構成したことが原因であると推察される。 As shown in Table 1, in Examples 1 to 5 and 7, the strength of the connecting portion 2c is substantially the same as that of Comparative Example 2. In Example 6 and Comparative Example 1, the strength of the connecting portion 2c is lower than those of Examples 1 to 5, 7 and Comparative Example 1. This is because in Example 6, the area of the reinforcing member 3 was reduced by the amount of C, and in Comparative Example 1, the reinforcing member 3 was made of only the polyurethane sheet 3y (the canvas 3x was omitted). ) It is inferred that this is due to the configuration.
なお、各実施例及び比較例において、ベルト本体２における接続部２ｃ以外の部分の強度は、４０Ｎ／ｍｍである。接続部２ｃの強度は、ベルト本体２における接続部２ｃ以外の部分の強度の１／２以上（即ち、各実施例及び比較例において、２０Ｎ／ｍｍ以上）であることが好ましい。 In each example and comparative example, the strength of the belt body 2 other than the connection portion 2c is 40 N / mm. The strength of the connecting portion 2c is preferably ½ or more of the strength of the belt body 2 other than the connecting portion 2c (that is, 20 N / mm or more in each of the examples and comparative examples).
＜耐久性について＞
耐久性を評価するための試験としては、通常走行試験及び過酷走行試験を行った。各試験では、図６に示すように、搬送ベルト１を補強部材３がプーリ６０ａ，６０ｂ，６０ｅの周面に対向するように（即ち、内側に配置されるように）してプーリ６０ａ〜６０ｅに巻回して走行させた。通常走行試験で用いた搬送ベルト１は幅１００ｍｍ・長さ１４５０ｍｍであり、プーリ６０ａ〜６０ｅは共に直径２０ｍｍである。過酷走行試験で用いた搬送ベルト１は幅１００ｍｍ・長さ１４５０ｍｍであり、プーリ６０ａ，６０ｂ，６０ｅは直径２０ｍｍ、プーリ６０ｃ，６０ｄは直径２５ｍｍである。また、過酷走行試験では、各プーリ６０ａ，６０ｂの軸方向中央部分に幅１０ｍｍ・厚さ１ｍｍの粘着テープを貼り付けた。通常走行試験では、搬送ベルト１の張力が４ｋｇｆ／ｃｍ、走行速度が１５０ｍ／ｍｉｎとなるように設定し、目標屈曲回数を２００万回とした。過酷走行試験では、搬送ベルト１の張力が１ｋｇｆ／ｃｍ、走行速度が１００ｍ／ｍｉｎとなるように設定し、接続部２ｃが破断するまで走行させた。
<About durability>
As a test for evaluating durability, a normal running test and a severe running test were performed. In each test, as shown in FIG. 6, the conveyor belt 1 is arranged so that the reinforcing member 3 faces the peripheral surface of the pulleys 60a, 60b, 60e (that is, arranged on the inner side), and the pulleys 60a-60e. Wound around and let it run. The conveyor belt 1 used in the normal running test has a width of 100 mm and a length of 1450 mm, and both the pulleys 60a to 60e have a diameter of 20 mm. The conveyor belt 1 used in the severe running test has a width of 100 mm and a length of 1450 mm, the pulleys 60a, 60b, and 60e have a diameter of 20 mm, and the pulleys 60c and 60d have a diameter of 25 mm. In the severe running test, an adhesive tape having a width of 10 mm and a thickness of 1 mm was attached to the central portion of each pulley 60a, 60b in the axial direction. In the normal running test, the tension of the conveyor belt 1 was set to 4 kgf / cm, the running speed was set to 150 m / min, and the target number of bendings was 2 million. In the severe running test, the conveyor belt 1 was set to have a tension of 1 kgf / cm and a running speed of 100 m / min, and was run until the connecting portion 2c was broken.
表１に示すように、通常走行試験は、実施例１，７及び比較例１について行った。実施例１及び比較例１は、補強部材３の剥離や接続部２ｃの破断が生じることなく、目標屈曲回数まで走行できた。実施例７は、接続部２ｃの破断は生じなかったが、途中で補強部材３が剥離した。これは、実施例７では、補強凸部３ｐの先端３ｐ１が丸みを帯びずに尖っているためと推察される。 As shown in Table 1, the normal running test was performed for Examples 1 and 7 and Comparative Example 1. Example 1 and Comparative Example 1 were able to travel to the target number of flexures without causing the peeling of the reinforcing member 3 and the breakage of the connecting portion 2c. In Example 7, the connecting portion 2c was not broken, but the reinforcing member 3 was peeled off in the middle. This is presumably because, in Example 7, the tip 3p1 of the reinforcing projection 3p is sharp without being rounded.
表１に示すように、過酷走行試験は、実施例１及び比較例１について行った。実施例１は１２時間走行できたのに対し、比較例１はわずか０．６時間で接続部２ｃが破断した。 As shown in Table 1, the severe running test was conducted for Example 1 and Comparative Example 1. While Example 1 was able to run for 12 hours, Comparative Example 1 had the connecting part 2c broken in just 0.6 hours.
通常走行試験及び過酷走行試験の結果から、実施例１は、十分な耐久性を有することがわかった。 From the results of the normal running test and the severe running test, it was found that Example 1 has sufficient durability.
以上、本発明の好適な実施の形態について説明したが、本発明は上述の実施形態に限られるものではなく、特許請求の範囲に記載した限りにおいて様々な設計変更が可能なものである。 The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various design changes can be made as long as they are described in the claims.
例えば、以下のような設計変更が可能である。
・ベルト本体の構成について：
ベルト本体の表面にカバー層を設けてもよい。この場合、カバー層は、熱可塑性樹脂（例えば、ポリウレタン、ＰＶＣ、ポリオレフィン、ポリカーボネート、フッ素樹脂、ポリエチレン、ポリプロピレン）、ゴム材（例えば、ＮＲ、ＳＢＲ、ＩＲ、ＢＲ）等から構成されてよい。また、カバー層は、例えば、押出しやカレンダーロールにより圧延されたシート状の基材を芯体上に積層し、プレス加硫により連続加硫することにより、芯体上に形成されてよい。
ベルト本体における芯体は、１以上の任意の枚数の布で構成されてよい。
ベルト本体は、芯体と接着層とから構成されることに限定されず、例えば芯体のみから構成されてもよい（例えば上述の実施形態における接着層２ｙを省略してもよい）。
ベルト本体は、上述の実施形態で例示した以外の任意の材料により構成されてよく、また、任意の厚みを有してよい。
・補強部材の構成について：
第１部材の厚みが０．１ｍｍ未満であったり０．３ｍｍを超えたりしてもよい。第２部材の厚みが０．１ｍｍ未満であったり０．２ｍｍを超えたりしてもよい。
第２部材を省略してもよい。
補強凸部の先端が丸みを帯びずに尖っていてもよい。
補強部材は、基部を含まなくてもよい（図７参照）。
補強部材は、上述の実施形態で例示した以外の任意の材料により構成されてよい。
補強部材は、接続部及びベルト本体と上記のような幾何学的関係を有さなくてもよい。例えば、補強部材の幅方向の長さＥは、ベルト本体の幅方向の長さＷより短くてもよい。また、補強部材の形状は、上述の実施形態では接続部の形状と略同じ形状であるが、接続部の形状と若干異なる形状であってもよい。即ち、本発明において、「接続部の形状に対応する形状」は、「接続部の形状と全く同じ形状」に限定されるものではなく、「接続部の形状と若干異なる形状」も含む。
補強部材は、ベルト本体の一方の面のみに設けられることに限定されず、ベルト本体の両方の面に設けられてもよい。また、補強部材が設けられる面は、ベルトの内側（プーリの周面に対向する側）及び外側のいずれであってもよい。
・複数の接続凸部は、形状及びサイズが互いに同じであることに限定されない。また、接続凸部の先端は鈍角であってもよい。同様に、複数の補強凸部は、形状及びサイズが互いに同じであることに限定されない。また、補強凸部の先端は鈍角であってもよい。
・接続部及び補強部材は、長手方向における中心線に対して対称な形状を有することに限定されない。例えば、接続部及び補強部材が、幅方向に対して傾斜した方向に延在してもよい。また、補強部材は、接続部の長手方向における中心線に対して対称に配置されることに限定されない。
・接続線分及び補強線分は、直線状であることに限定されず、湾曲状であってもよい。
・ベルト本体と補強部材との間に接着剤（例えば、上述の実施形態における接着剤４）を設けず、ベルト本体（例えば、上述の実施形態における接着層２ｙ）に補強部材を直接接着してもよい。
・ベルト本体の幅方向（即ち、複数の接続凸部及び複数の補強凸部がそれぞれ延在する方向）は、ベルト本体の長手方向に交差する方向であればよく、ベルト本体の長手方向に直交することに限定されない（図８参照）。
For example, the following design changes are possible.
・ About the configuration of the belt body:
A cover layer may be provided on the surface of the belt body. In this case, the cover layer may be made of a thermoplastic resin (for example, polyurethane, PVC, polyolefin, polycarbonate, fluororesin, polyethylene, polypropylene), a rubber material (for example, NR, SBR, IR, BR) or the like. Moreover, a cover layer may be formed on a core body by laminating | stacking the sheet-like base material rolled, for example by extrusion and the calendar roll on a core body, and carrying out continuous vulcanization | cure by press vulcanization.
The core body in the belt body may be composed of one or more arbitrary numbers of cloths.
The belt body is not limited to being configured from a core body and an adhesive layer, and may be configured from only a core body (for example, the adhesive layer 2y in the above-described embodiment may be omitted).
The belt body may be made of any material other than those exemplified in the above-described embodiment, and may have any thickness.
・ About the structure of the reinforcing member:
The thickness of the first member may be less than 0.1 mm or may exceed 0.3 mm. The thickness of the second member may be less than 0.1 mm or may exceed 0.2 mm.
The second member may be omitted.
The tip of the reinforcing convex portion may be sharp without being rounded.
The reinforcing member may not include the base (see FIG. 7).
The reinforcing member may be made of any material other than those exemplified in the above embodiment.
The reinforcing member may not have the above-described geometric relationship with the connecting portion and the belt body. For example, the length E in the width direction of the reinforcing member may be shorter than the length W in the width direction of the belt body. Further, the shape of the reinforcing member is substantially the same as the shape of the connection portion in the above-described embodiment, but may be a shape slightly different from the shape of the connection portion. That is, in the present invention, the “shape corresponding to the shape of the connection portion” is not limited to “the shape that is exactly the same as the shape of the connection portion”, but also includes “a shape slightly different from the shape of the connection portion”.
The reinforcing member is not limited to being provided on only one surface of the belt body, and may be provided on both surfaces of the belt body. Further, the surface on which the reinforcing member is provided may be either on the inner side of the belt (the side facing the peripheral surface of the pulley) or on the outer side.
The plurality of connecting convex portions are not limited to the same shape and size. Further, the tip of the connection convex portion may be an obtuse angle. Similarly, the plurality of reinforcing protrusions are not limited to the same shape and size. Further, the tip of the reinforcing convex portion may be an obtuse angle.
-A connection part and a reinforcement member are not limited to having a symmetrical shape with respect to the centerline in a longitudinal direction. For example, the connecting portion and the reinforcing member may extend in a direction inclined with respect to the width direction. Further, the reinforcing member is not limited to be arranged symmetrically with respect to the center line in the longitudinal direction of the connecting portion.
The connecting line segment and the reinforcing line segment are not limited to being linear, and may be curved.
-Adhesive (for example, adhesive 4 in the above-described embodiment) is not provided between the belt main body and the reinforcing member, and the reinforcing member is directly bonded to the belt main body (for example, the adhesive layer 2y in the above-described embodiment). Also good.
-The width direction of the belt body (that is, the direction in which the plurality of connecting projections and the plurality of reinforcing projections extend) may be a direction that intersects the longitudinal direction of the belt body, and is orthogonal to the longitudinal direction of the belt body. It is not limited to doing (refer FIG. 8).
１ 搬送ベルト
２ ベルト本体
２ａ 一端
２ｂ 他端
２ｃ 接続部
２ｐ 接続凸部
２ｒ 接続線分
３ 補強部材
３ｐ 補強凸部
３ｐ１ 補強凸部の先端
３ｑ 基部
３ｒ 補強線分
３ｘ 帆布（第１部材）
３ｙ ポリウレタンシート（第２部材）
４ 接着剤
Ａ 基部における長手方向の長さ
Ｂ 接続凸部の突出長さ
Ｃ 補強線分と接続線分との間隔
Ｅ 補強部材の幅方向の長さ
Ｇ 補強凸部の突出長さ
Ｈ１ 補強凸部における幅方向の長さ
Ｈ２ 接続凸部における幅方向の長さ
Ｗ ベルト本体の幅方向の長さ
DESCRIPTION OF SYMBOLS 1 Conveyance belt 2 Belt main body 2a One end 2b Other end 2c Connection part 2p Connection convex part 2r Connection line segment 3 Reinforcement member 3p Reinforcement convex part 3p1 Reinforcement convex part tip 3q Base part 3r Reinforcement line segment 3x Canvas (1st member)
3y polyurethane sheet (second member)
4 Adhesive A Length in the longitudinal direction at the base portion B Protruding length of the connecting convex portion C Distance between the reinforcing line segment and the connecting line segment E Length of the reinforcing member in the width direction G Protruding length of the reinforcing convex portion H1 Reinforcing convexity Length in the width direction at the part H2 Length in the width direction at the connecting convex part W Length in the width direction of the belt body
Claims (9)
前記ベルト本体における前記一端及び前記他端の接続部を覆う領域に接着された、前記接続部の形状に対応する形状を有する、補強部材と、
を備え、
前記接続部は、前記ベルト本体の前記長手方向に交差する幅方向に沿って前記一端側及び前記他端側に交互に突出した、複数の接続凸部を含み、
前記補強部材は、前記複数の接続凸部のそれぞれに対応するように前記幅方向に沿って前記一端側及び前記他端側に交互に突出した、複数の補強凸部を含むことを特徴とする、搬送ベルト。 One end and the other end in the longitudinal direction are each zigzag-shaped, and the one end and the other end are connected so as to fit, and a belt body,
A reinforcing member having a shape corresponding to the shape of the connecting portion, which is bonded to a region covering the connecting portion of the one end and the other end of the belt body;
With
The connection portion includes a plurality of connection convex portions that alternately protrude from the one end side and the other end side along a width direction intersecting the longitudinal direction of the belt body,
The reinforcing member includes a plurality of reinforcing convex portions that alternately protrude toward the one end side and the other end side along the width direction so as to correspond to each of the plurality of connecting convex portions. , Conveyor belt.
前記基部における前記長手方向の長さが、前記接続凸部の突出長さ以下であることを特徴とする、請求項１又は２に記載の搬送ベルト。 The reinforcing member further includes a base portion extending in the width direction, and the plurality of reinforcing convex portions protrude from the base portion,
The conveyor belt according to claim 1, wherein a length of the base portion in the longitudinal direction is equal to or less than a protruding length of the connection convex portion.
前記補強部材は、前記接続部を挟んで前記一端側及び前記他端側のそれぞれに設けられた端部が、前記複数の接続線分のそれぞれに対応するように前記幅方向に沿って連続的に設けられた複数の補強線分を含み、互いに隣接する２つの前記補強線分が１の前記補強凸部を構成し、
互いに対応する前記補強線分と前記接続線分との間隔が、１ｍｍ以上であることを特徴とする、請求項１〜３のいずれか一項に記載の搬送ベルト。 The connection portion includes a plurality of connection line segments continuously provided along the width direction so as to correspond to the zigzag shape, and the two adjacent connection line segments are connected to the connection convex portion. Configure
The reinforcing member is continuous along the width direction so that end portions provided on each of the one end side and the other end side with respect to the connecting portion correspond to each of the plurality of connecting line segments. The two reinforcing line segments adjacent to each other constitute one reinforcing projection,
The conveyance belt according to any one of claims 1 to 3, wherein an interval between the reinforcing line segment and the connecting line segment corresponding to each other is 1 mm or more.
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| JP2002155999A (en) * | 2000-11-17 | 2002-05-31 | Mitsuboshi Belting Ltd | Joint structure of conveyor belt |
| JP2008309976A (en) * | 2007-06-14 | 2008-12-25 | Seiko Epson Corp | Seam belt |
| JP5421086B2 (en) * | 2009-12-08 | 2014-02-19 | 三ツ星ベルト株式会社 | belt |
| JP2011162279A (en) * | 2010-02-04 | 2011-08-25 | Hucon:Kk | Simple steel conveyor belt |
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