JP3067999B2 - Conveying belt and method for manufacturing the same - Google Patents
Conveying belt and method for manufacturing the sameInfo
- Publication number
- JP3067999B2 JP3067999B2 JP8080234A JP8023496A JP3067999B2 JP 3067999 B2 JP3067999 B2 JP 3067999B2 JP 8080234 A JP8080234 A JP 8080234A JP 8023496 A JP8023496 A JP 8023496A JP 3067999 B2 JP3067999 B2 JP 3067999B2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- transport
- cross
- section
- contact
- 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.)
- Expired - Fee Related
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- Structure Of Belt Conveyors (AREA)
- Belt Conveyors (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、搬送管内におい
て断面略Ｕ字状に弾性変形した状態でエアにより浮上し
つつ走行して被搬送物を搬送する搬送ベルト及びその製
造方法に関し、特にベルト走行抵抗を低減する対策に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport belt for transporting an object to be transported while being levitated by air while being elastically deformed into a substantially U-shaped section in a transport pipe, and a method of manufacturing the belt. Related to measures to reduce resistance.
【０００２】[0002]
【従来の技術】例えば、特開平４−３１７９１１号公報
に記載されているように、内外２重の円管と、その円管
の両開口端近傍位置に配置された１対のプーリと、これ
ら両プーリ間に巻き掛けられた状態で両スパンが上記各
々の円管内に配置された搬送ベルトとを備え、上記搬送
ベルトを各管の内部底面からのエアにより浮上させつつ
走行させることにより、上記搬送ベルト上に載置された
被搬送物を搬送するようにした搬送装置は知られてい
る。また、上記搬送ベルトとしては、一般に、帆布から
なる心体と、この心体の表裏両面にそれぞれ積層された
カバーゴムとで構成されている。2. Description of the Related Art As disclosed in, for example, Japanese Patent Application Laid-Open No. 4-317911, a double inner and outer circular pipe, a pair of pulleys arranged near both open ends of the circular pipe, and By providing a transport belt in which both spans are arranged in the respective circular pipes in a state of being wound between the two pulleys, by causing the transport belt to travel while floating by air from the inner bottom surface of each pipe, 2. Description of the Related Art A transport device configured to transport an object placed on a transport belt is known. In addition, the transport belt generally includes a core body made of canvas, and cover rubbers laminated on both the front and back surfaces of the core body.
【０００３】つまり、図１２に模式的に示すように、各
円管ａの底部中央には、その長さ方向に所定ピッチ間隔
をおいて多数の給気孔ｂ，ｂ…が設けられており、上記
搬送ベルトｃは、円管ａの内面形状に沿うように断面円
弧状に弾性変形した状態で、給気孔ｂ，ｂ…から吹き出
されたエアにより浮上し、このことで、搬送ベルトｃの
走行抵抗を小さくできるようになされている。That is, as schematically shown in FIG. 12, a large number of air supply holes b, b,... Are provided at the center of the bottom of each circular pipe a at predetermined pitch intervals in the length direction thereof. The transport belt c is floated by the air blown out from the air supply holes b in a state where the transport belt c is elastically deformed to have an arcuate cross-section along the inner surface shape of the circular pipe a. The resistance is reduced.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の搬送ベルトｃでは、図１２に誇張して示すように、
円管ａの内面に対するベルト両耳部ｄ，ｄの各角部分の
接触圧が高いために、ベルト幅方向へのエアの抜けはよ
くなく、このことで走行抵抗が増大し易いという問題が
ある。However, in the above-mentioned conventional conveyor belt c, as shown exaggeratedly in FIG.
Belt binaural portion with the inner surface of the circular tube a d, due to the high contact pressure of each corner portion of the d, air leakage may not in the belt widthwise direction, running resistance is liable to increase in this .
【０００５】また、上記の接触により角部分のゴムが摩
耗し易く、その摩耗粉が被搬送物に混入するという問題
もある。[0005] Further, there is also a problem that the rubber at the corners is easily worn by the above-mentioned contact, and the abrasion powder is mixed into the conveyed object.
【０００６】ここで、ゴム種の硬度（ＨS ）及びＤＩＮ
摩耗（ＪＩＳ Ｋ ６２６４の「加硫ゴムの摩耗試験方
法」参照）において互いに異なる３種類のゴム種を用い
てなる従来の搬送ベルトの約３００ｈｒｓに亘る走行後
の摩耗状態について具体的に説明すると、図１３（ａ）
〜（ｃ）にそれぞれ拡大して示す（ベルト幅方向の中間
部は図示を省略している）ように、何れの場合も、ゴム
物性による摩耗形状や摩耗量の相異はあるものの、ベル
ト両耳部ｄ、ｄの角部分の摩耗は起こっていることが判
る。尚、同図において、（ａ）は硬度がＨS ≧６０°で
かつＤＩＮ摩耗が９０ｍｍ3 以下である超耐摩耗性ゴム
種の場合であり、（ｂ）は硬度がＨS ＝４０°でかつＤ
ＩＮ摩耗が１５０ｍｍ3 以下である柔硬度耐摩耗性ゴム
種の場合であり、（ｃ）は硬度が同じくＨS ＝４０°で
かつＤＩＮ摩耗が３００ｍｍ3 以下である柔硬度の普通
ゴム種の場合である。そして、キャリア用円管内ではベ
ルト裏面（同図の下面）が、またリターン用円管内では
ベルト表面（同図の上面）がそれぞれ下面側となる。Here, the hardness (H S ) of rubber type and DIN
A specific description will be given of the abrasion state of a conventional conveyor belt using three different rubber types after running for about 300 hrs in abrasion (refer to “Abrasion test method for vulcanized rubber” in JIS K 6264). FIG. 13 (a)
As shown in each of FIGS. 1 to 3C (the middle part in the belt width direction is not shown), in each case, although there is a difference in abrasion shape and abrasion amount due to rubber physical properties, both belts are different. It can be seen that abrasion of the corners of the ears d, d has occurred. In the figure, (a) shows the case of a super wear-resistant rubber type having a hardness of H S ≧ 60 ° and DIN wear of 90 mm 3 or less, and (b) shows a case of a hardness of H S = 40 °. And D
A case IN wear of soft hardness wear-resistant rubber species is 150 mm 3 or less, (c) if the hardness is also and DIN abrasion is H S = 40 ° is usual rubber species soft hardness is 300 mm 3 or less It is. The back surface of the belt (the lower surface in the figure) is inside the carrier tube, and the surface of the belt (the upper surface in the diagram) is inside the return tube.
【０００７】この発明は斯かる点に鑑みてなされたもの
であり、その目的は、搬送管内で断面略Ｕ字状に弾性変
形した状態でエアにより浮上しつつ走行するようにした
搬送ベルトにおいて、その両耳部の各角部分の断面形状
に改良を加えることで、管内面に対する角部分の接触圧
を下げることができるようにし、もって、エアの抜けを
向上させて走行抵抗の低減が図れるようにするととも
に、上記接触に起因する摩耗粉の発生量を抑えて被搬送
物に混入する摩耗粉の量を少なくできるようにすること
にある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the invention is to provide a transport belt which travels while floating by air while being elastically deformed into a substantially U-shaped section in a transport pipe. By improving the cross-sectional shape of each corner of the both ears, it is possible to reduce the contact pressure of the corner with respect to the inner surface of the pipe, thereby improving the escape of air and reducing running resistance. It is another object of the present invention to reduce the amount of abrasion powder generated due to the contact and reduce the amount of abrasion powder mixed into the transported object.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
めに、この発明では、ベルト両耳部の角部分を、該角部
分の管内面への接触が促進される断面形状に形成するこ
とで、その接触面を大きくして接触圧を下げるようにし
た。In order to achieve the above object, according to the present invention, the corner portions of the both ears of the belt are formed in a cross-sectional shape which facilitates the contact of the corner portions with the inner surface of the tube. Thus, the contact surface was enlarged to reduce the contact pressure.
【０００９】具体的には、請求項１の発明では、断面略
矩形状に設けられ、断面略円形状をなす搬送管内に配置
されて断面略Ｕ字状に弾性変形した状態で該搬送管の底
部中央からのエアにより浮上しつつ走行して被搬送物を
搬送するようにされていて、上記搬送管内に載置された
ときにベルト幅方向の両耳部の各角部分が該搬送管の内
面とそれぞれ接触する搬送ベルトが前提である。そし
て、上記各耳部の両角部分のうち、上記搬送管の内面と
それぞれ接触する側の各角部分に、上記搬送管内に載置
されたときに該搬送管の内面との接触面を大きくする所
定断面形状の接触促進部がそれぞれ形成されているもの
とする。上記の構成において、搬送管内に搬送ベルトが
載置されると、その両耳部の各角部分は、所定断面形状
の接触促進部により大きな接触面で搬送管の内面に接触
する。これにより、その両耳部の角部分が直角をなして
いて上記接触面が小さくなっている従来の場合に比べ
て、搬送管の内面に対するベルト両耳部の各角部分の接
触圧は下がるようになる。よって、エアの抜けが向上し
て走行抵抗が低減されるとともに、搬送ベルトの走行に
伴う上記角部分の摩耗が回避され、その摩耗粉が被搬送
物に混入するという事態は未然に防止される。More specifically, according to the first aspect of the present invention, the transfer tube is provided in a substantially rectangular cross-section, disposed in a transfer tube having a substantially circular cross-section, and elastically deformed into a substantially U-shaped cross-section. Each of the corners of the both ears in the width direction of the belt is configured such that each corner portion of the conveyor pipe is moved when the object is conveyed while traveling by floating from the bottom center while being floated by air. It is assumed that the conveyor belts are in contact with the inner surface. And, of both corners of each ear, the inner surface of the transport pipe
At each corner portion on the side in contact respectively, shall contact promoting portion of a predetermined cross-sectional shape to increase the contact surface with the inner surface of the carrier tube are formed when it is placed on the transfer tube. In the above configuration, when the conveyor belt is placed in the conveyor tube, each corner portion of the both ears comes into contact with the inner surface of the conveyor tube with a large contact surface by the contact promoting portion having a predetermined cross-sectional shape. As a result, the contact pressure of each corner of the binaural portion of the belt with respect to the inner surface of the conveying pipe is reduced as compared with the conventional case where the corner portions of the binaural portions are at a right angle and the contact surface is small. become. Therefore, while the air escape is improved and the running resistance is reduced, abrasion of the corner portion due to the running of the conveyor belt is avoided, and the situation where the abrasion powder is mixed into the conveyed object is prevented beforehand. .
【００１０】請求項２の発明では、上記請求項１の発明
において、各接触促進部は、それぞれ断面円弧状をなす
ものとする。また、請求項３の発明では、同じく請求項
１の発明において、各接触促進部はそれぞれ断面傾斜状
をなすものとする。よって、これら何れの構成において
も、両耳部の各角部分は、その接触促進部により、搬送
管内に載置されたときに該搬送管の内面との接触面が効
率よく大きくなり、上記請求項１の発明での作用は具体
的にかつ適正に営まれることとなる。尚、これらの場合
に、ベルト耳部の両角部分同士の断面形状は必ずしも対
称である必要はなく、各角部分の摩耗状態等に応じて適
宜設定することができる。According to a second aspect of the present invention, in the first aspect of the invention, each of the contact promoting portions has an arc-shaped cross section. Further, in the invention of claim 3, similarly to the invention of claim 1, each of the contact promoting portions has an inclined cross section. Therefore, in any of these configurations, the contact promoting portions of the respective corner portions of the both ears effectively increase the contact surface with the inner surface of the transport pipe when placed in the transport pipe. The operation of the invention of Item 1 is performed specifically and appropriately. In these cases, the cross-sectional shapes of the two corners of the belt ears do not necessarily have to be symmetrical, and can be appropriately set according to the wear state of each corner.
【００１１】請求項４の発明では、上下１対のプレス
と、該両プレス間のベルト幅方向の両側に配置された左
右１対の耳金との間でベルト中間体を成形して上記請求
項１の発明に係る搬送ベルトを製造する方法として、上
記ベルト中間体の両耳部の各角部分にそれぞれ接触促進
部が形成された状態に該耳部を成形する断面形状の耳金
を用いるようにする。この構成において、搬送ベルトの
両耳部は、その各角部分にそれぞれ接触促進部が形成さ
れた状態に各耳金により成形される。よって、上記請求
項１の発明に係る搬送ベルトが効率よく得られるととも
に、接触促進部の断面形状が均一化される。According to the present invention, a belt intermediate is formed between a pair of upper and lower presses and a pair of left and right lugs arranged on both sides in the belt width direction between the two presses. Item 1 is a method of manufacturing the transport belt according to the invention, wherein a lug having a cross-sectional shape is used in which the ear portions are formed in a state in which contact promoting portions are formed at respective corners of both ear portions of the belt intermediate body. To do. In this configuration, the both ears of the conveyor belt are formed by the ear lugs in a state where the contact promoting portions are formed at the respective corners. Therefore, the transport belt according to the first aspect of the present invention can be efficiently obtained, and the cross-sectional shape of the contact promoting portion is made uniform.
【００１２】請求項５の発明では、上記請求項１の発明
に係る搬送ベルトを製造する方法として、断面略矩形状
のベルト中間体を得た後、そのベルト中間体の両耳部を
バフ加工して、該両耳部の各角部分にそれぞれ接触促進
部を形成することとする。この構成において、搬送ベル
トの両耳部の各角部分には、バフ加工により各々の接触
促進部が形成されるので、上記請求項１の発明に係る搬
送ベルトは、従来の搬送ベルトを利用して簡便に得られ
ることとなる。According to a fifth aspect of the present invention, as a method of manufacturing the conveyor belt according to the first aspect of the present invention, a belt intermediate having a substantially rectangular cross section is obtained, and both ears of the belt intermediate are buffed. Then, a contact promoting portion is formed at each corner of the both ears. In this configuration, since each contact promoting portion is formed by buffing at each corner of both ears of the conveyor belt, the conveyor belt according to the first aspect of the present invention uses a conventional conveyor belt. And can be obtained easily.
【００１３】[0013]
【発明の実施の形態】以下、この発明の実施形態を図面
に基づいて説明する。図２及び図３は、この発明の実施
形態に係る搬送ベルトが使用された搬送装置の全体構成
を示し、この搬送装置では、搬送路は同各図の右側から
左側に向かって延びるように設けられており、上記搬送
路に沿って配置された断面円形状をなす両端開口の搬送
管としての外管１と、この外管１内にその長さ方向に延
びるように配置されていて、上記外管１よりも小径の断
面円形状をなす搬送管としての両端開口の内管２と、上
記外管１の搬送方向後端側（同各図の左右方向右端側）
に配置されたテールプーリ３と、搬送方向前端側（同各
図の左端側）に配置されたヘッドプーリ４とを備えてい
る。Embodiments of the present invention will be described below with reference to the drawings. 2 and 3 show the overall configuration of a transport device using a transport belt according to an embodiment of the present invention. In this transport device, a transport path is provided so as to extend from the right side to the left side in each drawing. An outer tube 1 as a transfer tube having a circular cross section arranged at both ends and arranged along the transfer path, and disposed inside the outer tube 1 so as to extend in a longitudinal direction thereof. Inner pipe 2 having both ends open as a transfer pipe having a circular cross section smaller in diameter than outer pipe 1 and a rear end side of the outer pipe 1 in the transfer direction (right end in the left-right direction in each figure)
And a head pulley 4 arranged at the front end side (left end side in each drawing) in the transport direction.
【００１４】上記テールプーリ３及びヘッドプーリ４間
には、搬送ベルト５が巻き掛けられていて、図４に拡大
して示すように、その下側スパンは外管１の内部底面上
に、また上側スパンは内管２の内部底面上にそれぞれ配
置されている。上記搬送ベルト５は、外管１内のスパン
が搬送方向とは逆の方向に向かって走行する一方、内管
２内のスパンが搬送方向に向かって走行するようになさ
れている。つまり、内管２内のスパンによりキャリア側
スパンが、また外管１内のスパンによりリターン側スパ
ンがそれぞれ構成されている。そして、外管１内ではベ
ルト表面（ベルト外周面）が、また内管２内ではベルト
裏面（ベルト内周面）がそれぞれ下面側となる。A transport belt 5 is wound between the tail pulley 3 and the head pulley 4, and its lower span is on the inner bottom surface of the outer tube 1 and on the upper side as shown in an enlarged view in FIG. The spans are respectively arranged on the inner bottom surface of the inner pipe 2. The transport belt 5 is configured such that a span in the outer tube 1 travels in a direction opposite to the transport direction, while a span in the inner tube 2 travels in the transport direction. That is, the span in the inner tube 2 constitutes the carrier-side span, and the span in the outer tube 1 constitutes the return-side span. In the outer tube 1, the belt surface (belt outer peripheral surface) is located, and in the inner tube 2, the belt back surface (belt inner peripheral surface) is located on the lower surface side.
【００１５】上記外管１の両側部には、図５に示すよう
に、複数の外管点検窓７，７，…が外管１の長さ方向に
並ぶように設けられている。各点検窓７は、外管１の側
部に側方に向かって突出するように設けられた断面矩形
状の角筒部からなっていて、蓋部材８により開閉され
る。一方、上記内管２の上部には、図５ないし図６に示
すように、複数の内管点検窓９，９，…が内管２の長さ
方向に並ぶように設けられている。各点検窓９は、内管
２の上部に外管１の上部を貫通し上方に向かって突出す
るように設けられた断面矩形状の角筒部からなってい
て、上記外管点検窓７，７，…の場合と同様に蓋部材１
０により開閉される。そして、各内管点検窓９の角筒部
が外管１を貫通している部分において、内管２は外管１
に支持固定されている。さらに、内管２のテールプーリ
３側の端部には、被搬送物を内管２内の搬送ベルト５上
に投入するための投入ダクト１１が上方に向けて突設さ
れている。As shown in FIG. 5, a plurality of outer tube inspection windows 7, 7,... Are provided on both sides of the outer tube 1 so as to be arranged in the longitudinal direction of the outer tube 1. Each inspection window 7 is formed of a rectangular tube section having a rectangular cross section provided so as to protrude toward the side of the outer tube 1 and is opened and closed by a lid member 8. On the other hand, as shown in FIGS. 5 and 6, a plurality of inner pipe inspection windows 9 are provided in the upper part of the inner pipe 2 so as to be arranged in the longitudinal direction of the inner pipe 2. Each inspection window 9 is formed of a rectangular tube section having a rectangular cross section provided so as to penetrate the upper portion of the inner tube 2 and penetrate the upper portion of the outer tube 1 and protrude upward. The lid member 1 as in the case of 7,.
It is opened and closed by 0. The inner pipe 2 is connected to the outer pipe 1 at the portion where the rectangular pipe portion of each inner pipe inspection window 9 penetrates the outer pipe 1.
It is fixedly supported. Further, at an end of the inner pipe 2 on the side of the tail pulley 3, a charging duct 11 for feeding a conveyed object onto the conveyor belt 5 in the inner pipe 2 is provided to project upward.
【００１６】上記外管１のテールプーリ３側の開口端に
は、テールプーリ３を覆った状態でそのプーリ３を回転
可能に支持するテールカバー１２が接続されており、こ
のテールカバー１２にも複数の内部点検用の点検窓（図
示は省略している）と、その点検窓を開閉する各蓋部材
１３とが配設されている。また、外管１とテールプーリ
３との間には、外管１から導出されてテールプーリ３に
巻き付けられる搬送ベルト５の下面に転動可能に圧接す
る補助プーリ１４が配設されている。A tail cover 12 that rotatably supports the pulley 3 while covering the tail pulley 3 is connected to an open end of the outer tube 1 on the tail pulley 3 side. An inspection window (not shown) for internal inspection and lid members 13 for opening and closing the inspection window are provided. An auxiliary pulley 14 is provided between the outer tube 1 and the tail pulley 3 so as to be rollably pressed against the lower surface of the transport belt 5 drawn out of the outer tube 1 and wound around the tail pulley 3.
【００１７】一方、上記外管１のヘッドプーリ４側の開
口端には、ヘッドプーリ４を覆った状態でそのプーリ４
を回転可能に支持するヘッドカバー１５が接続されてお
り、このヘッドカバー１５にも、複数の内部点検用の点
検窓（図示は省略している）と、その点検窓を開閉する
各蓋部材１６とが配設されている。そして、ヘッドカバ
ー１５の下端には被搬送物を排出するための排出口１７
が開設されている。また、ヘッドプーリ４と外管１との
間には、ヘッドプーリ４から繰り出されて外管１内に導
入される搬送ベルト５の下面に転動可能に圧接する補助
プーリ１８が配設されている。さらに、ヘッドカバー１
５の外部側面には、上記ヘッドプーリ４を図３の反時計
回り方向に回転駆動する電動モータ１９が設置されてい
る。On the other hand, the open end of the outer tube 1 on the side of the head pulley 4 is
Is connected to the head cover 15, and a plurality of inspection windows (not shown) for internal inspection, and lid members 16 for opening and closing the inspection windows. It is arranged. The lower end of the head cover 15 has a discharge port 17 for discharging a conveyed object.
Has been established. An auxiliary pulley 18 is provided between the head pulley 4 and the outer tube 1 so as to rollably press the lower surface of the conveyor belt 5 which is fed from the head pulley 4 and introduced into the outer tube 1. I have. Furthermore, head cover 1
An electric motor 19 for rotating the head pulley 4 in the counterclockwise direction in FIG.
【００１８】上記搬送装置には、外管１及び内管２の各
内部にエアを供給するためのブロア２０が配設されてい
る。このブロア２０のエア吐出口には、１本の外管用給
気管２１ａと、２本の内管用給気管２１ｂ，２１ｂとが
それぞれ接続されている。そして、上記外管用給気管２
１ａの先端は、図６に示すように、外管１の外部底面に
外管１の長さ方向に延びるように設けられた外管用エア
ダクト２２ａに接続されており、そのエアダクト２２ａ
の天板部、つまり外管１の底部に外管１の長さ方向に所
定ピッチ間隔をおいて設けられた複数の給気孔２３ａ，
２３ａ，…から外管１内にエアを吹き出すようになされ
ている。A blower 20 for supplying air to the inside of each of the outer tube 1 and the inner tube 2 is provided in the transfer device. One air supply pipe 21a for the outer pipe and two air supply pipes 21b for the inner pipe 21b are connected to the air discharge port of the blower 20, respectively. And the outer pipe air supply pipe 2
As shown in FIG. 6, the tip of 1a is connected to an outer tube air duct 22a provided on the outer bottom surface of the outer tube 1 so as to extend in the longitudinal direction of the outer tube 1.
A plurality of air supply holes 23a, which are provided at predetermined pitch intervals in the longitudinal direction of the outer tube 1 at the top plate portion, that is, at the bottom of the outer tube 1.
Air is blown into the outer tube 1 from 23a,.
【００１９】一方、上記各内管用給気管２１ｂの先端
は、同じく図６に示すように、内管２の下半部の外部周
面に周方向に延びるように設けられた円弧状の補助ダク
ト２４の両端に外管１の側部を半径方向に貫通して接続
されている。そして、この補助ダクト２４は、内管２の
外部底面に内管２の長さ方向に延びるように設けられた
内管用エアダクト２２ｂに直交するように接続されてお
り、その内管用エアダクト２２ｂの天板部である内管２
の底部に内管２の長さ方向に所定ピッチ間隔をおいて設
けられた複数の給気孔２３ｂ，２３ｂ，…から内管２内
にエアを吹き出すようになされている。また、ヘッドカ
バー１５と、内管２の２のテールプーリ３側の端部近傍
位置とには、各々、外管１及び内管２の各内部に吹き出
されたエアを外部に排気するための排気ダクト２５が設
けられている。On the other hand, as shown in FIG. 6, the distal end of each of the air supply pipes 21b for the inner pipe has an arcuate auxiliary duct provided on the outer peripheral surface of the lower half of the inner pipe 2 so as to extend in the circumferential direction. 24 are connected to both ends of the outer tube 1 by penetrating the side portions of the outer tube 1 in the radial direction. Then, the auxiliary duct 24 is connected so as to be perpendicular to the outer bottom surface of the inner tube 2 to the inner tube air duct 22b provided so as to extend in the longitudinal direction of the inner tube 2, the top of the inner tube air duct 22b Inner tube 2 which is a plate part
Air is blown into the inner pipe 2 from a plurality of air supply holes 23b, 23b,... Provided at predetermined intervals in the longitudinal direction of the inner pipe 2 at the bottom of the inner pipe 2. An exhaust duct for exhausting air blown into each of the outer pipe 1 and the inner pipe 2 to the outside is provided between the head cover 15 and a position near the end of the inner pipe 2 on the tail pulley 3 side. 25 are provided.
【００２０】ここで、上記搬送装置の作動を説明する
と、電動モータ１９によりヘッドプーリ４が回転駆動さ
れると、搬送ベルト５のキャリア側スパンは内管２の内
部底面上を搬送方向に向かって走行し、一方、リターン
側スパンは外管１の内部底面上を搬送方向と逆の方向に
向かって走行する。そして、投入ダクト１１から内管２
内に被搬送物が投入されると、その被搬送物は搬送ベル
ト５の表面上に載置された状態で搬送される。次いで、
ヘッドカバー１５内で搬送ベルト５がヘッドプーリ４に
巻き付いてその表裏両面の上下位置が反転するとき、上
記被搬送物は搬送ベルト５から滑落して排出口１７から
外部に排出される。その後、搬送ベルト５は表面を下面
側とする状態で外管１内に導入され、外管１の内部底面
上を走行してテールプーリ３の側にリターンする。Here, the operation of the above-described transport device will be described. When the head pulley 4 is driven to rotate by the electric motor 19, the carrier-side span of the transport belt 5 moves on the inner bottom surface of the inner pipe 2 in the transport direction. On the other hand, the return-side span travels on the inner bottom surface of the outer tube 1 in a direction opposite to the transport direction. And, from the charging duct 11 to the inner pipe 2
When an object to be conveyed is loaded into the inside, the object is conveyed while being placed on the surface of the conveyor belt 5. Then
When the transport belt 5 is wound around the head pulley 4 in the head cover 15 and the upper and lower surfaces of the transport belt 5 are reversed, the transported object slides down from the transport belt 5 and is discharged to the outside through the discharge port 17. Thereafter, the transport belt 5 is introduced into the outer tube 1 with the surface on the lower surface side, travels on the inner bottom surface of the outer tube 1, and returns to the tail pulley 3 side.
【００２１】一方、上記のようにして循環走行する搬送
ベルト５に対し、ブロア２０から外管１及び内管２の各
内部にエアが供給される。このエアは各給気孔２３ａ，
２３ｂから搬送ベルト５の各スパンに向けて吹き出さ
れ、このことで、上記各スパンは外管１及び内管２の各
内部底面から浮上する。これにより、外管１及び内管２
の各内部底面と、その上を走行する搬送ベルト５との間
の摺動摩擦が減ぜられるので、搬送ベルト５の走行抵抗
は低く抑えられる。そして、外管１及び内管２の各内部
に吹き出されたエアは、排気ダクト２５，２５から外部
に排気される。On the other hand, air is supplied from the blower 20 into each of the outer pipe 1 and the inner pipe 2 to the transport belt 5 circulating and traveling as described above. This air is supplied to each air supply hole 23a,
The air is blown out from 23b toward each span of the conveyor belt 5, whereby each span floats from the inner bottom surface of the outer pipe 1 and the inner pipe 2. Thereby, the outer pipe 1 and the inner pipe 2
The sliding friction between each of the inner bottom surfaces and the transport belt 5 running thereon is reduced, so that the running resistance of the transport belt 5 can be kept low. The air blown into each of the outer pipe 1 and the inner pipe 2 is exhausted from the exhaust ducts 25 and 25 to the outside.
【００２２】この実施形態では、上記搬送ベルト５は、
図７に模式的に示すように、少なくとも１プライ以上の
帆布３１ａ，３１ａ，…（この例では２プライの帆布３
１ａ，３１ａ）からなる心体３１と、この心体３１の表
裏両面（同図の上下両面）にそれぞれ所定厚さ（例えば
共に３ｍｍの厚さ）に設けられたカバーゴム３２，３２
とを有してなっている。In this embodiment, the transport belt 5 is
As schematically shown in FIG. 7, at least one ply of canvas 31a, 31a,.
1a, 31a), and cover rubbers 32, 32 provided at predetermined thicknesses (for example, both having a thickness of 3 mm) on both front and back surfaces (upper and lower surfaces in FIG. 1) of the core body 31.
And has.
【００２３】そして、上記搬送ベルト５の両耳部５ａ，
５ａの表面側の各角部分（図７に一点鎖線で示す上下中
央位置から上側の各耳部５ａの部分）には、図１に模式
的にかつ誇張して示すように、上記外管１内に載置され
たときに該外管１の内面との接触面を大きくする所定断
面形状の接触促進部３３が各々の角部分のベルト厚さ方
向の全体に亘ってそれぞれ形成されている。また、裏面
側の各角部分（図７に一点鎖線で示す上下中央位置から
下側の各耳部５ａの部分）には、上記内管２内に載置さ
れたときに該内管２の内面との接触面を大きくする所定
断面形状の接触促進部３４が、上記の場合と同様に各々
の角部分のベルト厚さ方向の全体に亘ってそれぞれ形成
されている。And, both ears 5a,
As shown in FIG. 1 schematically and exaggeratedly, the outer tube 1 is provided at each corner portion on the front surface side of 5a (the portion of each ear portion 5a above the vertical center position shown by a dashed line in FIG. 7). A contact promoting portion 33 having a predetermined cross-sectional shape, which increases a contact surface with the inner surface of the outer tube 1 when placed inside, is formed over the entire corner portion in the belt thickness direction. In addition, each corner portion on the back side (the portion of each ear portion 5a from the upper and lower central position shown by the dashed line in FIG. 7) is placed on the inner tube 2 when placed in the inner tube 2. The contact promoting portions 34 having a predetermined cross-sectional shape for increasing the contact surface with the inner surface are respectively formed over the entire corner portions in the belt thickness direction as in the above-described case.
【００２４】具体的には、上記各接触促進部３３，３４
は、共にベルト厚さＴの１／２の寸法を曲率半径Ｒとす
る断面円弧状（Ｒ＝Ｔ／２）をなしている。つまり、各
耳部５ａの全体としては、図７に仮想線で示す従来の搬
送ベルトに対し、それぞれ半径ＲがＲ＝Ｔ／２である断
面半円形状をなしていることになる。Specifically, each of the above-mentioned contact promoting portions 33, 34
Have an arc-shaped cross section (R = T / 2) with a radius of curvature R equal to one-half the thickness T of the belt. That is, each of the ears 5a has a semicircular cross section in which the radius R is R = T / 2 with respect to the conventional conveyor belt indicated by a virtual line in FIG.
【００２５】次に、上記搬送ベルト５の製造方法につい
て説明する。図８は、搬送ベルト５の製造装置を概略的
に示しており、上下１対のプレス４１，４１と、該両プ
レス４１，４１間のベルト幅方向（同図の左右方向）の
両側に配置された左右１対の耳金４２，４２とを備えて
いて、それらプレス４１，４１及び耳金４２，４２間で
ベルト中間体を所定形状に成形することで、搬送ベルト
５が製造されるようになっている。Next, a method of manufacturing the transport belt 5 will be described. FIG. 8 schematically shows a device for manufacturing the conveyor belt 5, which is arranged on a pair of upper and lower presses 41, 41 and on both sides in the belt width direction (left-right direction in the figure) between the two presses 41, 41. A pair of left and right lugs 42, 42 are provided, and the conveyor belt 5 is manufactured by forming a belt intermediate between the presses 41, 41 and the lugs 42, 42 into a predetermined shape. It has become.
【００２６】そして、上記耳金４２は、図９に拡大して
示す（同図には図８の左側の耳金４２のみ示している）
ように、ベルト耳部５ａを成形するための成形面４２ａ
が、ベルト厚さＴの１／２の寸法を曲率半径Ｒとする断
面半円形の溝状に形成されている。これにより、搬送ベ
ルト５の各耳部５ａの表裏両角部分に断面円弧状の接触
促進部３３，３４をそれぞれ効率よく形成することがで
きるとともに、その各接触促進部３３，３４の断面形状
をそれぞれ均一化して安定した品質が得られるようにな
っている。The lug 42 is shown enlarged in FIG. 9 (only the left lug 42 in FIG. 8 is shown in FIG. 9).
Forming surface 42a for forming the belt ears 5a
Is formed in a groove shape having a semicircular cross section with a radius of curvature R equal to a half of the belt thickness T. Thereby, the contact promoting portions 33 and 34 having an arc-shaped cross section can be efficiently formed at both the front and back corners of each of the ear portions 5a of the transport belt 5, and the contact promoting portions 33 and 34 have respective sectional shapes. Uniform and stable quality can be obtained.
【００２７】したがって、この実施形態によれば、搬送
装置の外管１内及び内管２内に搬送ベルト５を載置した
ときに、その各耳部５ａの表裏両角部分を各々の接触促
進部３３，３４により大きな接触面で外管１及び内管２
の各内面に接触させることができるので、ベルト両耳部
の角部分が直角をなしていて上記接触面が小さくなって
いる従来の搬送ベルトの場合に比べて、外管１及び内管
２の各内面に対するベルト両耳部５ａ，５ａの各角部分
の接触圧を共に下げることができる。よって、エアの抜
けを向上させて走行抵抗を低減することができるととも
に、搬送ベルト５の走行に伴う上記角部分の摩耗を回避
でき、その摩耗粉が被搬送物に混入するという事態を未
然に防止することができる。Therefore, according to this embodiment, when the transport belt 5 is placed in the outer tube 1 and the inner tube 2 of the transport device, the front and back corner portions of each ear portion 5a are moved to the respective contact promoting portions. The outer tube 1 and the inner tube 2
Of the outer tube 1 and the inner tube 2 as compared with the conventional conveyor belt in which the corner portions of the both ears of the belt form a right angle and the contact surface is small. The contact pressure at each corner of the belt both ears 5a, 5a against each inner surface can be reduced. Therefore, the running resistance can be reduced by improving the escape of air, and the abrasion of the corners caused by the running of the conveyor belt 5 can be avoided. Can be prevented.
【００２８】尚、上記実施形態では、搬送ベルト５の各
耳部５ａの表裏両角部分に、互いに同じ断面形状の接触
促進部３３，３４を形成するようにしているが、外管１
及び内管２の各内径や走行条件等に応じて各断面形状を
互いに異ならせてもよく、例えば外管１の内径が十分に
大きい場合には、裏面側（下面側）の接触促進部３４の
みとすることもできる。In the above embodiment, the contact promoting portions 33 and 34 having the same cross-sectional shape are formed at both front and back corners of each of the ear portions 5a of the conveyor belt 5.
The cross-sectional shapes may be different from each other in accordance with the inner diameter of the inner pipe 2 and the running conditions. For example, when the inner diameter of the outer pipe 1 is sufficiently large, the contact promoting portion 34 on the rear surface (lower surface). It can also be only.
【００２９】また、上記実施形態のように表裏両角部分
に互いに同じ断面形状の接触促進部を形成する場合で
も、搬送ベルトの両耳部の断面形状は、上記実施形態の
半円形状の他に、一例として、図１０（ａ）〜（ｄ）に
それぞれ示す断面形状の各耳金４２に倣った形状とする
こともできる。Further, even when the contact promoting portions having the same cross-sectional shape are formed on both the front and back corners as in the above-described embodiment, the cross-sectional shape of the both ears of the transport belt is not limited to the semicircular shape of the above-described embodiment. As an example, it is also possible to adopt a shape following each ear metal 42 having a cross-sectional shape shown in FIGS. 10 (a) to 10 (d).
【００３０】つまり、図１０（ａ）の場合では、耳金４
２の成形面４２ａは、上記実施形態の場合と同様に断面
円弧部分を有するが、その場合よりも小さい曲率半径
Ｒ′の断面円弧状をなしていてベルト耳部の表裏両角部
分の表裏面側のみに断面円弧状の各々の接触促進部を形
成する上下両端部分５１，５１と、上下方向に鉛直な上
下中間部分５２とからなっている。That is, in the case of FIG.
The second molding surface 42a has an arcuate section in the same manner as in the above embodiment, but has an arcuate cross section with a radius of curvature R 'smaller than that in the case, and the front and back sides of the front and back corners of the belt ears. Only upper and lower end portions 51 and 51 forming respective contact promoting portions having an arc-shaped cross section, and upper and lower middle portions 52 which are vertically vertical.
【００３１】図１０（ｂ）に示す耳金４２の成形面４２
ａは断面Ｖ字状をなしていて、ベルト耳部の表裏両角部
分にそのベルト厚さ方向の全体に亘って断面傾斜状の接
触促進部を形成する上半部分６１及び下半部分６１から
なっている。The molding surface 42 of the lug 42 shown in FIG.
"a" has a V-shaped cross section, and includes an upper half portion 61 and a lower half portion 61 which form a contact facilitating portion having a cross-sectionally inclined shape at both front and back corner portions of the belt ear portion in the belt thickness direction. ing.
【００３２】図１０（ｃ）では、成形面４２ａは、搬送
ベルトに向かって上下間隔寸法が徐々に大きくなる断面
テーパ状をなしていてベルト耳部の表裏両角部分の表裏
面側のみに断面傾斜状の各々の接触促進部を形成する上
下両端部分７１，７１と、上下方向に鉛直な上下中間部
分７２とからなっている。In FIG. 10 (c), the forming surface 42a has a tapered cross section in which the vertical spacing gradually increases toward the conveyor belt, and the cross section is inclined only at the front and back sides of the front and back corners of the belt ears. It comprises upper and lower end portions 71, 71 forming respective contact-promoting portions, and upper and lower intermediate portions 72, which are vertical in the vertical direction.
【００３３】そして、図１０（ｄ）では、上記図１０
（ｃ）の場合と略同様に、断面略テーパ状の上下両角部
分８１，８２と、上下中間部分８３とからなっている
が、下角部分８２の傾斜は上角部分８１よりも緩やかに
なっていてる。これは、ベルト耳部の表裏両角部分の実
際の摩耗状態に近い断面形状とするためである。In FIG. 10D, FIG.
As in the case of (c), it is composed of upper and lower corner portions 81 and 82 having a substantially tapered cross section and an upper and lower intermediate portion 83, but the inclination of the lower corner portion 82 is gentler than that of the upper corner portion 81. Te This is because the front and back corners of the belt ears have a cross-sectional shape close to the actual worn state.
【００３４】また、上記実施形態では、上下１対のプレ
ス４１，４１と、それら両プレス４１，４１間のベルト
幅方向の両側に配置された左右１対の耳金４２，４２と
の間でベルト中間体を成形して搬送ベルト５を製造する
ようにしているが、断面略矩形状をなす従来の搬送ベル
トをベルト中間体として用い、そのベルト中間体の両耳
部をバフ加工して、該両耳部の各角部分にそれぞれ接触
促進部を形成するようにしてもよい。In the above embodiment, a pair of upper and lower presses 41, 41 and a pair of left and right ear plates 42, 42 arranged on both sides in the belt width direction between the presses 41, 41 are arranged. Although the belt intermediate is formed to manufacture the transport belt 5, a conventional transport belt having a substantially rectangular cross section is used as the belt intermediate, and both ears of the belt intermediate are buffed. A contact promoting portion may be formed at each corner of the both ears.
【００３５】さらに、上記実施形態では、搬送ベルト５
を、２プライの帆布３１ａ，３１ａからなる心体３１
と、この心体３１の表裏両面に積層されたカバーゴム３
２，３２とを有してなるものとしているが、搬送ベルト
の構成はこれに限定されるものではない。Further, in the above embodiment, the transport belt 5
Is a core body 31 composed of two-ply canvases 31a, 31a.
And the cover rubber 3 laminated on the front and back surfaces of the core body 31
2, 32, but the configuration of the transport belt is not limited to this.
【００３６】（実験例） 次に、上記搬送ベルトにおいて、エアの風量によるベル
ト走行抵抗の低減状態について調べた実験について説明
する。(Experimental Example) Next, a description will be given of an experiment for examining a reduced state of the belt running resistance due to the air flow rate of the above-mentioned conveyor belt.
【００３７】先ず、発明例として、ベルト幅が７００ｍ
ｍ、ベルト厚さ（実測値）が８．８ｍｍ、長さが３ｍで
ある有端の搬送ベルトを作製した。その際に、両耳部の
裏面側の各角部分には、それぞれ曲率半径が４．４ｍｍ
である断面円弧状の接触促進部を該角部分のベルト厚さ
方向の全体に亘って設けるようにした。また、ベルトの
構造としては、ベルト長さ方向に５００ｋｇｆ／ｃｍの
強度を発揮するようにした２プライの帆布からなる心体
を形成し、その心体の表裏両面に、硬度（実測値）がＨ
S ＝４３°であるゴム種を用いてそれぞれ３ｍｍの厚さ
のカバーゴムを積層した。そのベルト総重量及びＥＩ値
（剛性値）は、それぞれ実測値で１９．０ｋｇ／３ｍ及
び２８．９６ｋｇｆ・ｍｍ2 ／ｍｍであった。First, as an example of the invention, the belt width is 700 m.
m, a belt thickness (actually measured value) of 8.8 mm, and a length of 3 m was used to produce an end-carrying belt. At this time, each corner on the back side of both ears has a radius of curvature of 4.4 mm.
The contact promoting portion having an arcuate cross section is provided over the entire corner portion in the belt thickness direction. Further, as the belt structure, a core body made of 2-ply canvas is formed so as to exhibit a strength of 500 kgf / cm in the belt length direction, and the hardness (actually measured value) is formed on both sides of the core body. H
A cover rubber having a thickness of 3 mm was laminated using a rubber type having S = 43 °. The total belt weight and the EI value (rigidity value) were 19.0 kg / 3 m and 28.96 kgf · mm 2 / mm as measured values, respectively.
【００３８】そして、上記発明例を、内径が４９６．０
ｍｍである円管内に載置し、その円管の給気孔からエア
を吹き出させた状態で上記搬送ベルトをベルト長さ方向
に引っ張って同方向に移動させるのに要した引張力〔ｋ
ｇｆ〕を測定し、その引張力をベルト総重量で除算して
走行抵抗係数を求めた。その際に、引張力の測定は３回
に亘って行い、その平均値を使用するようにした。尚、
上記エアの風量については、０．４３ｍ3 ／ｍｉｎ、
０．５３ｍ3 ／ｍｉｎ、１．７３ｍ3 ／ｍｉｎ及び２．
１３ｍ3 ／ｍｉｎの４種類（何れも３ｍ当たり）とし
た。Then, the above-mentioned invention example was modified to have an inner diameter of 496.0.
mm, and pulling the transport belt in the belt length direction in a state where air is blown out from the air supply hole of the circular tube to move the transport belt in the same direction [k]
gf], and the tensile force was divided by the total weight of the belt to obtain a running resistance coefficient. At that time, the measurement of the tensile force was performed three times, and the average value was used. still,
About the air volume of the above air, 0.43 m 3 / min,
0.53 m 3 / min , 1 . 73 m 3 / min and 2.
Four types of 13 m 3 / min (all per 3 m) were used.
【００３９】また、比較のために、上記発明例の場合と
同じ寸法でかつ同じ構造の搬送ベルトを作製して比較例
（両耳部の各角部分が直角のままであるもの）とし、こ
の比較例についてもその走行抵抗係数を上記と同じ要領
で求めた。以上の結果を、図１１に併せて示す。For comparison, a conveyor belt having the same dimensions and the same structure as that of the above-described invention was prepared as a comparative example (each corner of both ears remained at a right angle). The running resistance coefficient of the comparative example was determined in the same manner as described above. The above results are also shown in FIG.
【００４０】図１１から判るように、エアの風量が０．
４３ｍ3 ／ｍｉｎのときには、むしろ発明例の走行抵抗
係数の方が大きいものの、この種の搬送装置における常
用風量域である０．５ｍ3 ／ｍｉｎ以上の場合には、逆
に、発明例の走行抵抗が低くなっている。これは、搬送
ベルトの両耳部の各角部分に断面円弧状の接触促進部が
形成されていて、該角部分の管内面に対する接触面が大
きくなっており、その分だけ接触圧が下がっていること
によるものと考えられる。As can be seen from FIG. 11, when the air volume is 0.
In the case of 43 m 3 / min, the running resistance coefficient of the invention example is rather large, but when it is 0.5 m 3 / min or more, which is the normal air volume range in this type of transport device, the traveling example of the invention example is reversed. Resistance is low. This is because a contact promoting portion having an arc-shaped cross section is formed at each corner of both ears of the conveyor belt, and the contact surface of the corner with the inner surface of the tube is increased, and the contact pressure is reduced by that much. This is probably due to
【００４１】[0041]
【発明の効果】以上説明したように、請求項１の発明に
よれば、断面略円形状をなす搬送管内に配置されて断面
略Ｕ字状に弾性変形した状態で該搬送管の底部中央から
のエアにより浮上しつつ走行して被搬送物を搬送するよ
うにした搬送ベルトにおいて、そのベルト両耳部の各角
部分に、上記搬送管内に載置されたときに該搬送管の内
面との接触面を大きくする所定断面形状の接触促進部を
それぞれ形成するようにしたので、ベルト両耳部の角部
分が直角をなしていて上記接触面の小さい従来の場合に
比べて、管内面に対するベルト両耳部の各角部分の接触
圧を下げることができ、よって、エアの抜けを向上させ
て走行抵抗を低減することができるとともに、搬送ベル
トの走行に伴う上記角部分の摩耗を回避でき、その摩耗
粉が被搬送物に混入するという事態を未然に防止するこ
とができる。As described above, according to the first aspect of the present invention, from the center of the bottom of the transfer tube, the transfer tube is disposed within the transfer tube having a substantially circular cross section and elastically deformed to have a substantially U-shaped cross section. In a conveyor belt which travels while being levitated by air to convey an object to be conveyed, at each corner of the both ears of the belt, when placed in the conveyor tube, the inner surface of the conveyor tube Since the contact promoting portions each having a predetermined cross-sectional shape for increasing the contact surface are formed, the corner portions of the both ears of the belt are at right angles, and the belt with respect to the pipe inner surface is smaller than in the conventional case where the contact surface is small. The contact pressure of each corner of both ears can be reduced, and therefore, the escape of air can be improved and the running resistance can be reduced, and the wear of the corners caused by the running of the conveyor belt can be avoided, The abrasion powder mixes with the transferred object. A situation that can be prevented in advance.
【００４２】請求項２の発明によれば、上記接触促進部
を、断面円弧状をなすものとしたので、また請求項３の
発明によれば、断面傾斜状をなすものとしたので、各
々、上記搬送ベルトを具体的にかつ適正に得ることがで
きる。According to the second aspect of the present invention, the contact promoting portion has an arc-shaped cross section. According to the third aspect of the present invention, the contact promoting portion has an inclined cross section. The transport belt can be specifically and appropriately obtained.
【００４３】請求項４の発明によれば、上下１対のプレ
スと、該両プレス間のベルト幅方向の両側に配置された
左右１対の耳金との間でベルト中間体を成形して上記請
求項１の発明に係る搬送ベルトを製造する方法として、
上記ベルト中間体の両耳部の各角部分にそれぞれ接触促
進部が形成された状態に該両耳部を成形する断面形状の
耳金を用いるようにしたので、上記搬送ベルトを効率よ
く得ることができ、かつ接触促進部の断面形状を均一化
して品質を安定させることができる。According to the fourth aspect of the present invention, a belt intermediate is formed between a pair of upper and lower presses and a pair of left and right lugs arranged on both sides in the belt width direction between the two presses. As a method of manufacturing the transport belt according to the first aspect of the present invention,
In the state where the contact promoting portions are formed at the respective corners of the both ears of the belt intermediate body, earplugs having a cross-sectional shape for forming the both ears are used, so that the transport belt can be efficiently obtained. And the cross-sectional shape of the contact promoting portion can be made uniform to stabilize the quality.
【００４４】請求項５の発明によれば、上記請求項１の
発明に係る搬送ベルトの製造方法として、断面略矩形状
のベルト中間体を得た後、その両耳部をバフ加工して該
両耳部の各角部分にそれぞれ接触促進部を形成するよう
にしたので、従来の搬送ベルトを利用して上記搬送ベル
トを簡便に得ることができる。According to a fifth aspect of the present invention, as a method of manufacturing the transport belt according to the first aspect of the present invention, after obtaining a belt intermediate having a substantially rectangular cross section, the both ears are buffed. Since the contact promoting portions are formed at the respective corners of the both ears, the above-mentioned transport belt can be easily obtained using a conventional transport belt.
【図１】この発明の実施形態に係る搬送ベルトが搬送装
置の外管ないし内管内に載置された状態を模式的にかつ
誇張して示す横断面図である。FIG. 1 is a cross-sectional view schematically and exaggeratedly showing a state in which a transport belt according to an embodiment of the present invention is placed in an outer tube or an inner tube of a transport device.
【図２】搬送装置の全体構成を示す側面図である。FIG. 2 is a side view illustrating the overall configuration of the transport device.
【図３】搬送装置の全体構成を示す平面図である。FIG. 3 is a plan view showing the overall configuration of the transfer device.
【図４】搬送装置の外管及び内管をそれぞれ直径方向に
断面して部分的に示す斜視図である。FIG. 4 is a perspective view partially showing the outer tube and the inner tube of the transfer device in a cross section in a diametrical direction.
【図５】図２のＶ−Ｖ線断面図である。FIG. 5 is a sectional view taken along line VV of FIG. 2;
【図６】図２のVI−VI線断面図である。FIG. 6 is a sectional view taken along line VI-VI of FIG. 2;
【図７】搬送ベルトの基本構成を模式的に示す横断面図
である。FIG. 7 is a cross-sectional view schematically illustrating a basic configuration of a transport belt.
【図８】ベルト製造装置の基本構成を模式的に示す横断
面図である。FIG. 8 is a cross-sectional view schematically illustrating a basic configuration of the belt manufacturing apparatus.
【図９】製造装置に用いられる耳金を拡大して模式的に
示す横断面図である。FIG. 9 is a cross-sectional view schematically showing, in an enlarged manner, a lug used in the manufacturing apparatus.
【図１０】耳金のその他の実施形態をそれぞれ示す図９
相当図である。FIG. 9 shows another embodiment of the lug, respectively.
FIG.
【図１１】実験例における発明例及び比較例の風量−走
行抵抗係数の各関係を併せて示す特性図である。FIG. 11 is a characteristic diagram collectively showing the respective relationships between the air volume and the running resistance coefficient of the invention example and the comparative example in the experimental example.
【図１２】従来の搬送ベルトを搬送管内に載置した状態
を模式的にかつ誇張して示す図１相当図である。FIG. 12 is a diagram corresponding to FIG. 1 and schematically and exaggeratedly showing a state in which a conventional conveyor belt is placed in a conveyor tube.
【図１３】従来の搬送ベルトにおける両耳部の摩耗状態
を３種類のゴム種毎にそれぞれ拡大して示す横断面図で
ある。FIG. 13 is a cross-sectional view showing the state of wear of both ears of a conventional conveyor belt in an enlarged manner for each of three types of rubber.
１ 外管（搬送管） ２ 内管（搬送管） ５ 搬送ベルト ５ａ 耳部 ３３，３４ 接触促進部 ４１ プレス ４２ 耳金 DESCRIPTION OF SYMBOLS 1 Outer pipe (conveyance pipe) 2 Inner pipe (conveyance pipe) 5 Conveyor belt 5a Ear part 33, 34 Contact promotion part 41 Press 42 Ear metal
Claims (5)
をなす搬送管内に配置されて断面略Ｕ字状に弾性変形し
た状態で該搬送管の底部中央からのエアにより浮上しつ
つ走行して被搬送物を搬送するようにされていて、上記
搬送管内に載置されたときにベルト幅方向の両耳部の各
角部分が該搬送管の内面とそれぞれ接触する搬送ベルト
において、 上記各耳部の両角部分のうちの上記搬送管の内面とそれ
ぞれ接触する側の各角部分に、上記搬送管内に配置され
たときに該搬送管の内面との接触面を大きくする所定断
面形状の接触促進部がそれぞれ形成されていることを特
徴とする搬送ベルト。1. A transport pipe having a substantially rectangular cross-section and arranged in a transport pipe having a substantially circular cross-section, while being elastically deformed into a substantially U-shaped cross-section while traveling by air from the center of the bottom of the transport pipe. The transport belt is configured to transport an object to be transported, and when placed in the transport tube, each corner of both ears in the belt width direction contacts the inner surface of the transport tube, respectively. Inner surface of the above-mentioned transport tube in both corners of each ear and it
A contact promoting portion having a predetermined cross-sectional shape for increasing a contact surface with the inner surface of the transport tube when disposed in the transport tube is formed at each corner portion on the side where the contact is made, respectively. Conveyor belt.
とする搬送ベルト。2. The transport belt according to claim 1, wherein each of the contact promoting portions has an arc-shaped cross section.
とする搬送ベルト。3. The transport belt according to claim 1, wherein each of the contact promoting portions has an inclined cross section.
ルト幅方向の両側に配置された左右１対の耳金との間で
ベルト中間体を成形して請求項１記載の搬送ベルトを製
造する方法であって、 上記ベルト中間体の両耳部の各角部分にそれぞれ接触促
進部が形成された状態に該両耳部を成形する断面形状の
耳金を用いることを特徴とする搬送ベルトの製造方法。4. The conveyor belt according to claim 1, wherein a belt intermediate body is formed between a pair of upper and lower presses and a pair of left and right lugs arranged on both sides in the belt width direction between the two presses. Using a lug having a cross-sectional shape for forming the both ears in a state in which contact promoting portions are formed at respective corners of the both ears of the belt intermediate body. Manufacturing method of conveyor belt.
法であって、 断面略矩形状のベルト中間体を得た後、 上記ベルト中間体の両耳部をバフ加工して、該両耳部の
各角部分にそれぞれ接触促進部を形成することを特徴と
する搬送ベルトの製造方法。5. The method for manufacturing a transport belt according to claim 1, wherein after obtaining a belt intermediate having a substantially rectangular cross section, both ears of the belt intermediate are buffed to obtain the belt intermediate. A method of manufacturing a conveyor belt, wherein a contact promoting portion is formed at each corner of the portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8080234A JP3067999B2 (en) | 1996-04-02 | 1996-04-02 | Conveying belt and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8080234A JP3067999B2 (en) | 1996-04-02 | 1996-04-02 | Conveying belt and method for manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09272615A JPH09272615A (en) | 1997-10-21 |
| JP3067999B2 true JP3067999B2 (en) | 2000-07-24 |
Family
ID=13712664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8080234A Expired - Fee Related JP3067999B2 (en) | 1996-04-02 | 1996-04-02 | Conveying belt and method for manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3067999B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4271343B2 (en) * | 2000-05-24 | 2009-06-03 | カヤバ工業株式会社 | Garbage truck |
| JP2006008371A (en) * | 2004-06-29 | 2006-01-12 | Ishikawajima Transport Machinery Co Ltd | Air floating type belt conveyor |
-
1996
- 1996-04-02 JP JP8080234A patent/JP3067999B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09272615A (en) | 1997-10-21 |
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