JP2004262565A - Belt for curved conveyor - Google Patents

Belt for curved conveyor Download PDF

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Publication number
JP2004262565A
JP2004262565A JP2003052692A JP2003052692A JP2004262565A JP 2004262565 A JP2004262565 A JP 2004262565A JP 2003052692 A JP2003052692 A JP 2003052692A JP 2003052692 A JP2003052692 A JP 2003052692A JP 2004262565 A JP2004262565 A JP 2004262565A
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JP
Japan
Prior art keywords
belt
thin
curve conveyor
bead
bulging 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.)
Granted
Application number
JP2003052692A
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Japanese (ja)
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JP4336945B2 (en
Inventor
Naoyuki Saeki
直幸 佐伯
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Nitta Corp
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Nitta Corp
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Publication of JP2004262565A publication Critical patent/JP2004262565A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a belt for curved conveyors that can be rotated and driven smoothly and prevents beads from causing abnormal deformation or damage. <P>SOLUTION: In the belt for curved conveyors comprising a belt body 1, and a bead 2 mounted in such a mode as covering at least a surface 10 and a rear 12 in the entire region of the outer periphery section of the belt body 1, the bead 2 is integrated in such a mode as pinching a swelling section 20 by two thin sections 21, 22, and respective thin sections 21, 22 are stitched to the belt body 1. The surface 10, an outer periphery end 11, and the rear 12 in the entire region of the outer periphery section of the belt body 1 can be continuously covered with the beads. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
この発明は、カーブコンベヤ用ベルトに関するものである。
【０００２】
【従来の技術】
カーブコンベヤはベルト駆動状態において、ベルトに内側へ移動しようとする力（向心力）が発生するため、図５や図６に示すように、薄肉部９１と膨出部９０から成るビード９のうち前記薄肉部９１をベルト本体８の外周部全域に縫着し、固定部に取り付けられたホルダーＨのベアリングＨＢ，ＨＢのアウターレースで膨出部９０を挟持するようにしている（例えば、特許文献１がある。）。
【０００３】
ところで、近年、上記したホルダーＨは、ベルト交換などのメンテナンス時における作業の軽減のため、上下分割式にされていると共に取り付け個数を減らす傾向にある。
【０００４】
しかしながら、上記の如くホルダーＨの取り付け個数を減少させた場合、一個当たりのホルダーＨにかかる向心力は大きくなることから、以下に示すような問題が生じる。
【０００５】
図５に示す形態のものでは、ベルト本体８に作用する向心力によりベアリングＨＢ，ＨＢと当接する膨出部９０が同図の二点鎖線に示すように捲れ上がってしまう。したがって、ベルト本体８に作用する向心力に対してベルト本体８を内側へ移動不能に支持することが困難である。
【０００６】
図６に示す形態のものでは、ベルト本体８に作用する向心力により膨出部９０と薄肉部９１との間の部分に亀裂が入って、膨出部９０が外側の抜ける方向に移動してしまう。この形態でも、ベルト本体８に作用する向心力に対してベルト本体８を内側へ移動不能に支持することができない。
【０００７】
【特許文献１】
特開平７−２５４３４号公報
なお、上記問題を解決する手段として、例えば、ビード全体を厚肉にしたり、膨出部９０を縫着するということが考えられるが、これら手段を採用した場合、ビードの屈曲性が悪くなり円滑なベルトの回転駆動ができなくなってしまう。
【０００８】
【発明が解決しようとする課題】
そこで、この発明は、円滑に回転駆動でき且つビードに異常な変形及び破損が生じにくいカーブコンベヤ用ベルト提供することを課題とする。
【０００９】
【課題を解決するための手段】
（請求項１記載の発明）
この発明は、ベルト本体と、前記ベルト本体の外周部全域における少なくとも表面及び裏面を覆う態様で取付けられたビードとから成るカーブコンベヤ用ベルトであって、前記ビードは、膨出部を二つの薄肉部で挟む態様で一体成形されたものであり、各薄肉部をベルト本体に縫着してある。
（請求項２記載の発明）
この発明のカーブコンベヤ用ベルトは、上記請求項１記載の発明に関し、ベルト本体の外周部全域における表面、外周縁及び裏面が連続してビードで覆われている。
（請求項３記載の発明）
この発明のカーブコンベヤ用ベルトは、上記請求項１又は２記載の発明に関し、膨出部を挟む二つの薄肉部のうち、内側に位置する薄肉部は外側に位置する薄肉部よりも厚く設定してある。
（請求項４記載の発明）
この発明のカーブコンベヤ用ベルトは、上記請求項１乃至３のいずれかに記載の発明に関し、膨出部と薄肉部とが連続する部分は断面Ｒ状に形成されている。
（請求項５記載の発明）
この発明のカーブコンベヤ用ベルトは、上記請求項１乃至４のいずれかの発明に関し、薄肉部のベルト本体への縫着は、膨出部から離れた位置に設定してある。
【００１０】
なお、上記発明のカーブコンベヤ用ベルトの作用・効果については、発明の実施の形態の欄で明らかにする。
【００１１】
【発明の実施の形態】
この発明の実施形態を図面に従って説明する。
〔実施形態１〕
図１はこの発明の実施形態のカーブコンベヤ用ベルトＢを利用したカーブコンベヤＢＣの平面図、図２は前記カーブコンベヤ用ベルトＢの斜視図、図３は図１のＸ−Ｘ断面図を示している。
（このカーブコンベヤＢＣの主要構成について）
このカーブコンベヤＢＣは、基本的には図１に示すように、フレーム３，３と、前記フレーム３ａ，３ｂの前後部に回転自在に支持されたテーパローラ４，４と、前記テーパローラ４，４相互間に張設されたカーブコンベヤ用ベルトＢと、前記カーブコンベヤ用ベルトＢの外周部を支持する多数のホルダー５を具備するものであり、前記テーパローラ４，４の一方をモータ６で回転駆動している。なお、このベルトコンベヤＢＣでは、ホルダー５を連続的に設けるのではなく、少し間隔を設けて配置してある。
【００１２】
カーブコンベヤ用ベルトＢは、図２や図３に示すように、ベルト本体１の外周部全域における表面１０、外周縁１１及び裏面１２が連続してビード２で覆われて成るものである。
【００１３】
ベルト本体１は、図２に示すように円錐台の周面の形状になっており、テーパローラ４，４相互間に張設された状態では図１に示すように扇形になっている。なお、ベルト本体１のベルト構造は、公知の全てのものが採用できる。
【００１４】
ビード２は、図３に示すように、幅方向（内外方向）の両端及びその近傍に形成された薄肉部２１，２２と、幅方向中央部に形成された膨出部２０とが一体成形されて構成してあり、前記薄肉部２１，２２をベルト本体１に縫着（薄肉部２１の縫着部を符号２１ａとし、薄肉部２２の縫着部を符号２２ａとする）する態様で取り付けられている。前記膨出部２０を挟む二つの薄肉部のうち、内側に位置する薄肉部２１は外側に位置する薄肉部２２よりも少しだけ厚く設定してあると共に、膨出部２０と薄肉部２１，２２とが連続する部分は断面Ｒ状に形成されている。なお、ビード２はウレタン等の合成樹脂で構成されている。
【００１５】
上記したカーブコンベヤ用ベルトＢを支持するホルダー５は、図３に示すように、断面コ字状に形成されたもので、ベアリング５０，５０を横ハ字状に配置している。なお、カーブコンベヤ用ベルトＢの往路及び復路は共に前記ホルダー５により支持されている。
【００１６】
ここで、このカーブコンベヤＢＣでは、カーブコンベヤ用ベルトＢが内側に移動しないようにするため、図３に示すように、ベアリング５０を膨出部２０の内側部分に当接させる態様で、一対のベアリング５０で挟持させるようにしている。
（このカーブコンベヤ用ベルトＢの機能について）
▲１▼．ビード２は、図３に示すように、幅方向の両端及びその近傍に形成された薄肉部２１，２２と、幅方向中央部に形成された膨出部２０とが一体化されて構成してあり、前記薄肉部２１，２２を縫着する態様（薄肉部２１の縫着部を符号２１ａとし、薄肉部２２の縫着部を符号２２ａとする）でベルト本体１に取り付けられている。
【００１７】
したがって、ベアリング５０，５０から膨出部２０へ作用する力は、膨出部２０とベアリング５０との接触部Ｓと、縫着部２１ａとの間に生ずる引っ張り力のみではなく、前記接触部Ｓと縫着部２２ａとの間に生ずる圧縮力にも変換され、このため従来の技術の欄で示した図５の形態のものの如き、膨出部２０と薄肉部２１との間部分への亀裂の発生は抑制される。
【００１８】
更に、膨出部２０を挟む二つの薄肉部のうち、内側に位置する薄肉部２１は外側に位置する薄肉部２２よりも少しだけ厚く設定してあると共に、膨出部２０と薄肉部２１，２２とが連続する部分は断面Ｒ状に形成されているから、膨出部２０と薄肉部２１との間部分への亀裂の発生の抑制効果は優れたものとなっている。
▲２▼．膨出部２０は、当該膨出部２０の両側に連続形成された薄肉部２１，２２をベルト本体１に縫着することにより取り付けられているから、従来の技術の欄で示した図４の形態のものの如き、捲れ上がるようなことはない。
▲３▼．ビード２全体が厚肉になるのではなく、且つ、膨出部９０自体を縫着するものではないので、ビードの屈曲性が悪くなるようなことはないから、円滑なカーブコンベヤ用ベルトＢの回転駆動が可能である。
▲４▼．上記▲１▼〜▲３▼から、このカーブコンベヤ用ベルトは、円滑に回転駆動でき且つビードに異常な変形及び破損が生じにくいものとなることが明らかである。
〔他の実施形態〕
上記実施形態１では、ベルト本体１の外周部全域における表面１０、外周縁１１及び裏面１２が連続してビード２で覆われて成るものとしてあるが、これに限定されることなく、図４に示すように、ベルト本体１の外周部全域における表面１０及び裏面１２のみがビード２で覆われて成るものでもよい。
【００１９】
上記実施形態１では、膨出部２０を挟む二つの薄肉部のうち、内側に位置する薄肉部２１は外側に位置する薄肉部２２よりも少しだけ厚く設定してあるが、材料によっては、薄肉部２１と薄肉部２２とを同じ厚みにしてもよい。
【００２０】
【発明の効果】
この発明は上記のような構成であるから次の効果を有する。
【００２１】
発明の実施の形態の欄に記載した内容から、円滑に回転駆動でき且つビードに異常な変形及び破損が生じにくいカーブコンベヤ用ベルトを提供できた。
【図面の簡単な説明】
【図１】この発明の実施形態のカーブコンベヤ用ベルトを利用したカーブコンベヤの平面図。
【図２】前記カーブコンベヤ用ベルトの斜視図。
【図３】図１のＸ−Ｘ断面図。
【図４】他の実施形態のカーブコンベヤ用ベルトの断面図。
【図５】先行技術のカーブコンベヤ用ベルトをホルダーで支持した状態を示す断面図。
【図６】先行技術のカーブコンベヤ用ベルトをホルダーで支持した状態を示す断面図。
【符号の説明】
ＢＣ カーブコンベヤ
Ｂ カーブコンベヤ用ベルト
１ ベルト本体
２ ビード
１０ 表面
１１ 外周縁
１２ 裏面
２０ 膨出部
２１ 薄肉部
２１ａ 縫着部
２２ 薄肉部
２２ａ 縫着部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a curve conveyor belt.
[0002]
[Prior art]
Since the curve conveyor generates a force (centripetal force) to move the belt inward in the belt driving state, as shown in FIGS. 5 and 6, the bead 9 including the thin portion 91 and the bulging portion 90 is used. The thin portion 91 is sewn to the entire outer peripheral portion of the belt body 8, and the bulging portion 90 is sandwiched between the outer races of the bearings HB and HB of the holder H attached to the fixing portion (for example, Patent Document 1). There is.).
[0003]
By the way, in recent years, the above-mentioned holder H is divided into upper and lower parts and has a tendency to reduce the number of attachments in order to reduce work at the time of maintenance such as belt replacement.
[0004]
However, when the number of holders H attached is reduced as described above, the centripetal force applied to each holder H increases, and the following problems occur.
[0005]
In the embodiment shown in FIG. 5, the bulging portion 90 which comes into contact with the bearings HB, HB is turned up as shown by a two-dot chain line in FIG. Therefore, it is difficult to support the belt main body 8 immovably inward with respect to the centripetal force acting on the belt main body 8.
[0006]
In the embodiment shown in FIG. 6, a crack is formed in the portion between the bulging portion 90 and the thin portion 91 due to the centripetal force acting on the belt main body 8, and the bulging portion 90 moves in a direction in which the bulging portion 90 comes off outward. . Also in this embodiment, the belt main body 8 cannot be supported so that it cannot move inward against the centripetal force acting on the belt main body 8.
[0007]
[Patent Document 1]
As means for solving the above problem, for example, it is conceivable to increase the thickness of the entire bead or to sew the bulging portion 90. Of the belt is deteriorated, and smooth rotation of the belt cannot be performed.
[0008]
[Problems to be solved by the invention]
Therefore, an object of the present invention is to provide a belt for a curve conveyor which can be smoothly rotated and hardly causes abnormal deformation and breakage of a bead.
[0009]
[Means for Solving the Problems]
(Invention of claim 1)
The present invention is a curve conveyor belt comprising a belt main body and a bead attached so as to cover at least a front surface and a back surface of the entire outer peripheral portion of the belt main body, wherein the bead has a bulging portion formed of two thin walls. Each thin portion is sewn to the belt body.
(Invention of claim 2)
The belt for a curved conveyor according to the present invention relates to the first aspect of the present invention, wherein the front surface, the outer peripheral edge, and the back surface of the entire outer peripheral portion of the belt main body are continuously covered with beads.
(Invention of claim 3)
The curve conveyor belt according to the present invention relates to the invention of claim 1 or 2, wherein, of the two thin portions sandwiching the bulging portion, the thin portion located inside is set to be thicker than the thin portion located outside. It is.
(Invention of Claim 4)
The belt for a curve conveyor according to the present invention relates to the invention according to any one of the first to third aspects, and a portion where the bulging portion and the thin portion are continuous is formed in an R-shaped cross section.
(Invention of claim 5)
The curved conveyor belt according to the present invention is directed to any one of the first to fourth aspects of the invention, wherein the thin portion is sewn to the belt body at a position away from the bulging portion.
[0010]
The operation and effect of the curve conveyor belt of the present invention will be clarified in the section of the embodiment of the present invention.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
[Embodiment 1]
1 is a plan view of a curve conveyor BC using a curve conveyor belt B according to an embodiment of the present invention, FIG. 2 is a perspective view of the curve conveyor belt B, and FIG. 3 is a cross-sectional view taken along line XX of FIG. ing.
(About the main structure of this curve conveyor BC)
As shown in FIG. 1, the curved conveyor BC basically includes frames 3, 3; tapered rollers 4, 4 rotatably supported on front and rear portions of the frames 3a, 3b; It comprises a curve conveyor belt B stretched in between, and a number of holders 5 supporting an outer peripheral portion of the curve conveyor belt B. One of the taper rollers 4, 4 is rotationally driven by a motor 6. ing. In this belt conveyor BC, the holders 5 are not provided continuously, but are arranged at a small interval.
[0012]
As shown in FIGS. 2 and 3, the curve conveyor belt B is formed by continuously covering the front surface 10, the outer peripheral edge 11, and the back surface 12 of the belt main body 1 with the beads 2.
[0013]
The belt body 1 has a shape of a truncated cone as shown in FIG. 2, and has a fan shape as shown in FIG. 1 when stretched between the tapered rollers 4 and 4. In addition, as the belt structure of the belt main body 1, all known structures can be adopted.
[0014]
As shown in FIG. 3, the bead 2 is formed by integrally forming thin portions 21 and 22 formed at both ends in the width direction (inward and outward directions) and in the vicinity thereof, and a bulging portion 20 formed at the center in the width direction. The thin portions 21 and 22 are attached to the belt main body 1 in such a manner as to be sewn to the belt body 1 (the sewn portion of the thin portion 21 is denoted by reference numeral 21a and the sewn portion of the thin portion 22 is denoted by reference numeral 22a). ing. Of the two thin portions sandwiching the bulging portion 20, the thin portion 21 located inside is set to be slightly thicker than the thin portion 22 located outside, and the bulging portion 20 and the thin portions 21 and 22 are set. Are formed in an R-shaped cross section. The bead 2 is made of a synthetic resin such as urethane.
[0015]
As shown in FIG. 3, the holder 5 for supporting the above-mentioned curve conveyor belt B is formed in a U-shaped cross section, and the bearings 50, 50 are arranged in a horizontal C-shape. The forward and backward paths of the curve conveyor belt B are both supported by the holder 5.
[0016]
Here, in the curve conveyor BC, in order to prevent the belt B for the curve conveyor from moving inward, as shown in FIG. It is made to be clamped by the bearing 50.
(About the function of this belt B for curve conveyor)
▲ 1 ▼. As shown in FIG. 3, the bead 2 is formed by integrating thin portions 21 and 22 formed at both ends in the width direction and in the vicinity thereof and a bulging portion 20 formed at the center in the width direction. The thin portions 21 and 22 are attached to the belt main body 1 in a mode of sewing (the sewn portions of the thin portions 21 are denoted by reference numeral 21a and the sewn portions of the thin portions 22 are denoted by reference numeral 22a).
[0017]
Therefore, the force acting on the bulging portion 20 from the bearings 50, 50 is not only the pulling force generated between the contact portion S between the bulging portion 20 and the bearing 50 and the sewing portion 21a, but also the contact portion S. 5 is also converted into a compressive force generated between the swelling portion 22a and the seam portion 22a. Is suppressed.
[0018]
Further, of the two thin portions sandwiching the bulging portion 20, the thin portion 21 located on the inside is set to be slightly thicker than the thin portion 22 located on the outside, and the bulging portion 20 and the thin portions 21, 22 is formed in an R-shaped cross section, so that the effect of suppressing the generation of cracks in the portion between the bulging portion 20 and the thin portion 21 is excellent.
▲ 2 ▼. The bulging portion 20 is attached by sewing the thin-walled portions 21 and 22 continuously formed on both sides of the bulging portion 20 to the belt main body 1. It doesn't roll up like a form.
(3). Since the entire bead 2 does not become thick and does not sew the bulging portion 90 itself, the bendability of the bead does not deteriorate. Rotational drive is possible.
▲ 4 ▼. From the above (1) to (3), it is clear that this curve conveyor belt can be smoothly rotated and driven, and abnormal deformation and breakage of the bead hardly occur.
[Other embodiments]
In the first embodiment, the front surface 10, the outer peripheral edge 11, and the back surface 12 in the entire outer peripheral portion of the belt main body 1 are continuously covered with the beads 2. However, the present invention is not limited to this. As shown, only the front surface 10 and the back surface 12 in the entire outer peripheral portion of the belt body 1 may be covered with the beads 2.
[0019]
In the first embodiment, of the two thin portions sandwiching the bulging portion 20, the thin portion 21 located on the inner side is set to be slightly thicker than the thin portion 22 located on the outer side. The portion 21 and the thin portion 22 may have the same thickness.
[0020]
【The invention's effect】
The present invention has the following effects because it has the above configuration.
[0021]
From the content described in the section of the embodiment of the present invention, it was possible to provide a belt for a curve conveyor that can be smoothly rotated and hardly causes abnormal deformation and breakage of a bead.
[Brief description of the drawings]
FIG. 1 is a plan view of a curve conveyor using a curve conveyor belt according to an embodiment of the present invention.
FIG. 2 is a perspective view of the curve conveyor belt.
FIG. 3 is a sectional view taken along line XX of FIG. 1;
FIG. 4 is a cross-sectional view of a curve conveyor belt according to another embodiment.
FIG. 5 is a sectional view showing a state in which a belt for a conventional curve conveyor is supported by a holder.
FIG. 6 is a cross-sectional view showing a state in which a belt for a conventional curve conveyor is supported by a holder.
[Explanation of symbols]
BC Curve Conveyor B Curve Conveyor Belt 1 Belt Body 2 Bead 10 Surface 11 Peripheral Edge 12 Back 20 Bulging 21 Thin 21a Sew 22 Thin 22a Sew

Claims (5)

ベルト本体と、前記ベルト本体の外周部全域における少なくとも表面及び裏面を覆う態様で取付けられたビードとから成るカーブコンベヤ用ベルトであって、前記ビードは、膨出部を二つの薄肉部で挟む態様で一体成形されたものであり、各薄肉部をベルト本体に縫着してあることを特徴とするカーブコンベヤ用ベルト。A curved conveyor belt comprising a belt main body and a bead attached so as to cover at least a front surface and a back surface of an entire outer peripheral portion of the belt main body, wherein the bead sandwiches a bulging portion between two thin portions. A belt for a curve conveyor, wherein each thin portion is sewn to a belt body. ベルト本体の外周部全域における表面、外周縁及び裏面が連続してビードで覆われていることを特徴とする請求項１記載のカーブコンベヤ用ベルト。The belt for a curve conveyor according to claim 1, wherein the front surface, the outer peripheral edge, and the back surface in the entire outer peripheral portion of the belt main body are continuously covered with beads. 膨出部を挟む二つの薄肉部のうち、内側に位置する薄肉部は外側に位置する薄肉部よりも厚く設定してあることを特徴とする請求項１又は２記載のカーブコンベヤ用ベルト。The belt for a curve conveyor according to claim 1 or 2, wherein, of the two thin portions sandwiching the bulging portion, a thin portion located inside is set thicker than a thin portion located outside. 膨出部と薄肉部とが連続する部分は断面Ｒ状に形成されていることを特徴とする請求項１乃至３のいずれかに記載のカーブコンベヤ用ベルト。The belt for a curve conveyor according to any one of claims 1 to 3, wherein a portion where the bulging portion and the thin portion are continuous is formed in an R-shaped cross section. 薄肉部のベルト本体への縫着は、膨出部から離れた位置に設定してあることを特徴とする請求項１乃至４のいずれかに記載のカーブコンベヤ用ベルト。The belt for a curve conveyor according to any one of claims 1 to 4, wherein the sewing of the thin portion to the belt body is set at a position away from the bulging portion.
JP2003052692A 2003-02-28 2003-02-28 Curve conveyor belt Expired - Fee Related JP4336945B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1801042A1 (en) * 2005-12-23 2007-06-27 TRANSNORM SYSTEM GmbH Conveyor belt
WO2007073898A1 (en) * 2005-12-23 2007-07-05 Transnorm System Gmbh Conveyor belt
KR101282661B1 (en) 2011-04-28 2013-07-12 엠제이씨 주식회사 Curve belt conveyor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170030390A (en) 2015-09-09 2017-03-17 인천국제공항공사 Beading for curved conveyor and support device for the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1801042A1 (en) * 2005-12-23 2007-06-27 TRANSNORM SYSTEM GmbH Conveyor belt
WO2007073898A1 (en) * 2005-12-23 2007-07-05 Transnorm System Gmbh Conveyor belt
CN101346293B (en) * 2005-12-23 2012-11-14 特兰斯诺姆***股份有限公司 Conveyor belt
KR101282661B1 (en) 2011-04-28 2013-07-12 엠제이씨 주식회사 Curve belt conveyor

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