JP6359483B2 - Belt conveyor equipment - Google Patents

Belt conveyor equipment Download PDF

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JP6359483B2
JP6359483B2 JP2015098492A JP2015098492A JP6359483B2 JP 6359483 B2 JP6359483 B2 JP 6359483B2 JP 2015098492 A JP2015098492 A JP 2015098492A JP 2015098492 A JP2015098492 A JP 2015098492A JP 6359483 B2 JP6359483 B2 JP 6359483B2
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conveyor
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bearing frame
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大宅 高敏
高敏 大宅
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株式会社ジェッター
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Description

本発明は、メダル・コイン又は重量ある小物を直線的又は湾曲した搬送路でも搬送できるベルトコンベヤ装置であり、主として遊技店における複数の遊技機とメダル貸し機が連設された遊技島でメダルを搬送するために用いられるベルトコンベヤ装置に関する。   The present invention is a belt conveyor device capable of conveying medals, coins or heavy items even on a linear or curved conveyance path, and a medal is mainly used at a game island in a game store where a plurality of gaming machines and medal lending machines are connected in series. The present invention relates to a belt conveyor device used for conveying.

従来の遊技島においては、遊技機とメダル貸し機にメダルを供給するメダル供給ラインや、遊技機で使用されたメダルを回収するメダル回収ラインにベルトコンベヤ装置が用いられている。
ところで、ベルトコンベヤ装置の形状は直線状であり、遊技島の全体形状が湾曲している場合などでは、複数の短い直線的ベルトコンベヤ装置をその前後端同士で乗せ掛けて折れ線状に接続し、各装置間でメダルを乗り移らせながら搬送している(例えば特許文献1参照)。しかし、この方法はベルトコンベヤ装置が多数必要で(例えば20台のスロットル台が設置された遊技島で約10本)故障の発生が多くなり、乗せ掛けた箇所でメダルが詰まりやすくなる問題もあった。
In a conventional game island, a belt conveyor device is used for a medal supply line for supplying medals to a gaming machine and a medal lending machine and a medal collection line for collecting medals used in the gaming machine.
By the way, the shape of the belt conveyor device is linear, and when the entire shape of the game island is curved, a plurality of short linear belt conveyor devices are placed on the front and rear ends of the belt conveyor device and connected in a broken line shape. The medals are transferred while being transferred between the devices (for example, see Patent Document 1). However, this method requires a large number of belt conveyor devices (for example, about 10 on the amusement island with 20 throttle bases), and there is a problem that medals tend to clog at the place where they are placed. It was.

また、多数のモジュールを連結したモジュラーベルトを用いることで、メダルを曲線状に連続的に搬送できるようにした技術も提案されている(例えば特許文献2,3参照)。しかし、モジュラーベルトの構造が複雑で高価であり、装置も大型化して設置場所の制約を受けやすいものであった。   In addition, a technique has been proposed in which a medal can be continuously conveyed in a curved shape by using a modular belt in which a large number of modules are connected (for example, see Patent Documents 2 and 3). However, the structure of the modular belt is complicated and expensive, and the apparatus is also large and is subject to restrictions on the installation location.

一方、ベルトコンベヤ装置のコンベヤフレームは、アルミニウム合金等の材料を直線状に押し出し成形した断面箱型の中空構造が一般的である(例えば特許文献3,4参照)。しかし、これらの技術では、曲線状の搬送ラインを実現するために長さの短い直線状のコンベヤフレームを折れ線状に複数連結しており、組み立てに手間を要していた。   On the other hand, a conveyor frame of a belt conveyor device generally has a cross-sectional box-shaped hollow structure in which a material such as an aluminum alloy is extruded and formed linearly (see, for example, Patent Documents 3 and 4). However, in these techniques, a plurality of linear conveyor frames having a short length are connected in a polygonal line in order to realize a curvilinear conveyance line, which requires time and effort for assembly.

本出願人は、一本の長尺の無端コンベヤベルトを使用してメダルを搬送する装置を開発した。一本の長尺の無端コンベヤベルトをメダル搬送に使用すると、多数個のメダルの重さが無端コンベヤベルトに垂直に荷重され、無端コンベヤベルトの送りにはベルトにスプリングによって適度な張力を与える必要となる。しかし、長期間使用すると無端コンベヤベルトが徐々に伸びて、ベルトとリターン部のプーリーとが滑って無端コンベヤベルトの送りができなくなる。それを解決すべく、長期間使用してベルトが伸びても張力が更に付勢できる構造の特殊な構造のベルト緊張装置を駆動プーリー側に設ける発明を開発した。その特許出願の公開公報が特許文献4である。これによって、前記問題点は解消した。更に、このベルト伸びに対する対応力を改良したのが引用文献5である。   The applicant has developed a device for transporting medals using a single long endless conveyor belt. When one long endless conveyor belt is used for conveying medals, the weight of a large number of medals is loaded perpendicular to the endless conveyor belt, and it is necessary to apply appropriate tension to the belt with a spring for feeding the endless conveyor belt. It becomes. However, when used for a long period of time, the endless conveyor belt is gradually extended, and the belt and the pulley of the return portion slip to make it impossible to feed the endless conveyor belt. In order to solve this problem, an invention has been developed in which a belt tensioning device having a special structure is provided on the drive pulley side so that tension can be further applied even when the belt is extended over a long period of time. The publication of the patent application is Patent Document 4. As a result, the above problems have been solved. Further, Patent Document 5 improves the response to the belt elongation.

しかしながら、湾曲した搬送路でも搬送できるように無端コンベヤベルトを短ベルトの多数本連結した長尺の無端コンベヤベルトを使用するとベルトとコンベヤの左右を拘束する側面板等との摩擦が増えて大きな抵抗が発生する。又、無端コンベヤベルトのリターンした復路側ベルト(下方側ベルト)が緩んで、このベルト部分に駆動力が伝わり難くなり、又駆動プーリー(駆動ローラー)部分でベルトの弛みが発生し、引用文献4,5の緊張装置では充分に対応できず、ベルトが駆動できなくなる場合が発生する。   However, if a long endless conveyor belt with many endless conveyor belts connected to each other so that it can be transported even on a curved transport path, the friction between the belt and the side plates that restrain the left and right sides of the conveyor increases, resulting in high resistance. Will occur. Further, the return side belt (lower side belt) returned from the endless conveyor belt is loosened, and it becomes difficult to transmit the driving force to the belt portion, and the belt is loosened at the driving pulley (driving roller) portion. , 5 cannot sufficiently cope with the tension device, and the belt cannot be driven.

本出願人は、引用文献6の発明で長尺の一本の無端ベルトコンベヤの途中でベルトを緊張する装置を開発した。しかし、このベルト途中でのベルト緊張装置は従来の一本の長尺のコンベヤでは緊張効果は有効であるが、多数の短ベルトを連結して長尺にするベルト構造では使用できず、上記問題点を解消できなかった。   The present applicant has developed an apparatus for tensioning a belt in the middle of a long endless belt conveyor in the invention of Cited Document 6. However, this belt tensioning device in the middle of the belt is effective in tensioning a conventional long conveyor, but cannot be used in a belt structure in which a number of short belts are connected to be long. The point could not be resolved.

実開平7−3694号公報Japanese Utility Model Publication No. 7-3694 特開2005−160539号公報JP 2005-160539 A 特開2006−26109号公報JP 2006-26109 A 特開2012−161467号JP2012-161467 特開2013−94369号JP2013-94369A 特開2013−94372号公報JP 2013-94372 A

本発明が解決しようとする課題は、従来のこれらの問題点を解消し、短ベルトを多数連結して長尺の無端コンベヤベルトとしたベルトコンベヤ装置において、ベルトの緩みがなく滑ることなく駆動してメダル・コイン・重い小物のコンベヤ搬送を確実にできるようにすることにある。   The problem to be solved by the present invention is to solve these conventional problems, and in a belt conveyor apparatus that connects a number of short belts to form a long endless conveyor belt, the belt is driven without slipping. It is to ensure that medals, coins and heavy small items can be conveyed by conveyor.

かかる課題を解決した本発明の構成は、
1) 送り方向には弾性変形できるが幅方向に変形しにくい複数の短ベルトをその前後端同士で水平に折れ曲がり可能に連結具で連結して長尺の無端コンベヤベルトを構成し、同無端コンベヤベルトの往路のベルトを受けるために搬送方向に複数に継がれたベルト受面フレームと,同ベルト受面フレームの左右それぞれに取付けられてベルトの左右動を規制する垂直な側壁体と,前記継がれたベルト受面フレームの始端終端となる前後端の位置で枢支されるベルトリターン用ローラーとから構成されたコンベヤフレームを設け、同コンベヤフレームの前後端のローラー間に前記無端コンベヤベルトを張り渡し、ローラーを外方向に付勢して同無端コンベヤベルトを緊張させる緊張装置と、前後端の少なくとも一方のローラーを回動させる駆動装置を備えたベルトコンベヤ装置に於いて、短ベルトの連結構造が、各短ベルトの前後端同士を重ね合わせ、その重なり部の上側の短ベルトに少なくとも3個以上の丸孔を開口し、重なり部の下側の短ベルトに丸孔を開口するとともにその左右位置に少なくとも1個以上の前後方向の長孔をそれぞれ開口し、中間位置の上下の丸孔に連結具を連通して留め、上側の短ベルトの左右の丸孔と下側の短ベルトの左右の長孔にも連結具を連通して留めて、中間の上下丸孔の連結具を中心にして水平に折れ曲がり可能に短ベルトを連結した構造とし、前後端にある前記ローラーは無端コンベヤベルトの短ベルトを連結する前後端の連結具のベルト下面から突出する下方突出部を収容する凹部をローラー外周に設けるとともに、送り方向に対し同凹部に連結部の下方突出部を嵌入して無端コンベヤベルトを確実に送れるようにしたことを特徴とする、ベルトコンベヤ装置
2) 無端コンベヤベルトを構成する短ベルトが、短ベルトの前後端の中間位置にその前後端に取付ける連結具と略同じ構造の中間連結具を取付けるとともに、中間連結具の下部もベルト下面から突出する下方突出部を有し、しかもローラーの凹部に収容されて嵌入できる構造としたものを使用した、前記1)記載のベルトコンベヤ装置
3) 短ベルトが、その左右の側辺を内側へやや湾曲するように中間の幅を前後の幅より短くし、且つ前後左右の角部を斜めに又は丸く形成したものである、前記1),2)いずれか記載のベルトコンベヤ装置
4) 短ベルトが、帆布を複数枚積層して形成されたものである、前記1)〜3)いずれか記載のベルトコンベヤ装置
5) ローラーの前記凹部が、ローラーの外周部に円環状の複数の溝を設けて形成された、前記1)〜4)いずれか記載のベルトコンベヤ装置
6) ローラーの前記凹部が、円柱状のローラーの外周部にU字状断面の溝をローラーの軸方向に沿って延びるように且つ円周方向に放射状に複数設けて形成された、前記1)〜4)いずれか記載のベルトコンベヤ装置
7) 前後端にあるローラーを軸支する軸受フレームがコンベヤフレームに沿って進退可能に配置され、同軸受フレームを前記緊張装置が外方向に付勢するとともに同軸受フレームにローラーを回動させる駆動装置を設けた構造である、前記1)〜6)いずれか記載のベルトコンベヤ装置
8) 前後端にある一方又は両方の緊張装置の構造が、前記軸受フレームの前後に掛止片を設け、その前後の前記掛止片間位置に前記掛止片間の間隔より狭幅の調整部材を配置し、前記軸受フレームの前後位置に固定の張出片を前記軸受フレームの進退範囲より大きい間隔をおいて設け、その前後の前記張出片にネジ軸を回転自在に貫通するとともに前記調整部材に螺合し、前記ネジ軸を回転操作する回転操作部を設け、前記調整部材と前記軸受フレームの外側の前記掛止片の間に圧縮バネを介装した構造である、前記7)記載のベルトコンベヤ装置
9) 前後端にある一方又は両方の緊張装置の構造が、前記ローラーを軸支する軸受フレームをコンベヤフレームに沿って進退可能に配置し、前記軸受フレームの外側の前後位置に固定の張出片を前記軸受フレームの進退範囲より大きい間隔をおいて設け、その前後の張出片と前記軸受フレームにネジ軸を回転自在に貫通し、前記軸受フレームの内側とその反対側にある張出片との間に圧縮バネを介装した、前記7)記載のベルトコンベヤ装置
にある。
The configuration of the present invention that solves this problem is as follows.
1) A plurality of short belts that can be elastically deformed in the feed direction but are difficult to deform in the width direction are connected to each other with a connecting tool that can be bent horizontally at their front and rear ends to form a long endless conveyor belt. A belt receiving surface frame joined in plural in the conveying direction to receive the belt in the forward direction of the belt, a vertical side wall body which is attached to each of the left and right sides of the belt receiving surface frame to regulate the lateral movement of the belt, and the joint A conveyor frame comprising a belt return roller pivotally supported at the front and rear end positions of the belt receiving surface frame, and the endless conveyor belt is stretched between the front and rear rollers of the conveyor frame. And a tensioning device that tensions the endless conveyor belt by urging the rollers outward and a driving device that rotates at least one of the front and rear rollers. In the belt conveyor apparatus equipped with a device, the short belt connection structure is such that the front and rear ends of each short belt overlap each other, and at least three or more round holes are opened in the short belt above the overlapping portion. Open a round hole in the short belt on the lower side of the belt and open at least one long hole in the front-rear direction at the left and right positions, and connect the connecting tool to the upper and lower round holes at the middle position. Connect the fasteners to the left and right round holes of the short belt and the left and right elongated holes of the lower short belt, and fasten the short belt so that it can be bent horizontally around the middle round hole. The rollers at the front and rear ends are connected to each other, and the rollers at the front and rear ends are provided with recesses in the outer periphery of the rollers that project from the lower surface of the belt at the front and rear ends of the connecting belt. Connected to the recess The belt conveyor device 2 is characterized in that the endless conveyor belt can be reliably fed by inserting the downward projecting portion of the section 2) The short belt constituting the endless conveyor belt is positioned at an intermediate position between the front and rear ends of the short belt. Attach an intermediate connector with the same structure as the connector attached to the front and rear ends, and the lower part of the intermediate connector also has a downward protruding part that protrudes from the lower surface of the belt, and it is structured to be accommodated in the recess of the roller 3) The belt conveyor device according to 1) above, wherein the short belt has an intermediate width shorter than the front and rear widths so that the left and right sides are slightly curved inward, and the front and rear and right and left corners are slanted. The belt conveyor apparatus 4) according to any one of 1) and 2), wherein the short belt is formed by laminating a plurality of canvases, 1) to 3) The belt conveyor device 5) The belt conveyor device 6) according to any one of 1) to 4), wherein the concave portion of the roller is formed by providing a plurality of annular grooves on the outer peripheral portion of the roller. Any of the above 1) to 4), wherein the concave portion is formed by providing a plurality of grooves having a U-shaped cross section radially along the axial direction of the roller in the outer peripheral portion of the cylindrical roller and radially extending in the circumferential direction. 7) A bearing frame for supporting the rollers at the front and rear ends is disposed so as to be able to advance and retreat along the conveyor frame, and the tensioning device urges the bearing frame outward and the bearing frame The belt conveyor apparatus 8) according to any one of 1) to 6), wherein the belt conveyor apparatus 8 is a structure provided with a driving device for rotating a roller. And a projecting piece fixed at the front and rear positions of the bearing frame. Is provided at a larger interval than the advancing and retreating range of the bearing frame, and a screw operation shaft is rotatably passed through the projecting pieces before and after the bearing frame, and is screwed into the adjustment member to rotate the screw shaft. The belt conveyor device 9) according to the above 7), wherein one or both tensioning devices at the front and rear ends are provided with a compression spring interposed between the adjusting member and the latching piece outside the bearing frame. In this structure, a bearing frame that pivotally supports the roller is disposed so as to be able to advance and retreat along the conveyor frame, and a fixed projecting piece is disposed at a front and rear position outside the bearing frame so as to be larger than the advancing and retreating range of the bearing frame. And set up The screw shaft Zhang pieces and the bearing frame rotatably through the later is interposed a compression spring between the projecting pieces on the inside and the opposite side of the bearing frame, the 7), wherein It is in the belt conveyor device.

本発明によれば、短ベルトを多数連結した無端コンベヤベルトを緊張装置で前後のローラーを外方向に緊張装置で引張したことにより、無端コンベヤベルトは引張力が付与されてローラーとよく密着して、しかもローラーの凹部が短ベルトの連結具又は中間連結具の下方突出部を収容してローラーと係止することで、無端コンベヤベルトとローラーとが滑ることがなくなり、確実に無端コンベヤベルトの送りを可能とする。   According to the present invention, the endless conveyor belt connected with a number of short belts is pulled by the tensioning device with the tensioning device and the tensioning device is used to pull the front and rear rollers outward. In addition, since the concave portion of the roller accommodates the lower protrusion of the short belt connector or the intermediate connector and engages with the roller, the endless conveyor belt and the roller are prevented from slipping, and the endless conveyor belt is reliably fed. Is possible.

更に、前後のローラーの両方とも駆動装置で強制駆動されれば、復路のベルトもローラーで強制送りがなされ、緩みが更に確実に解消される。   Furthermore, if both the front and rear rollers are forcibly driven by the driving device, the belt on the return path is also forcibly fed by the rollers, and the looseness is more reliably eliminated.

又、ローラーの外周部の凹部として、断面U字状のローラー軸方向に延びる溝を複数設けた構造のものを使用すると、断面U字状の溝の凹部に連結具の下方突出部が収容されて、下方突出部がローラー周面を傷つけることがないばかりでなく、下方突出部がU字状溝の凹部の内周壁面とよく係止し、下方突出部がローラーの周面の滑りをなくし、確実にローラーで無端コンベヤベルトを強制送り可能とする。これは、駆動部のないリターン側ローラーでも無端コンベヤベルトとの滑りもなく確実に送れるようにする。   Also, if a roller having a structure in which a plurality of grooves extending in the direction of the roller axis having a U-shaped cross section is used as the concave portion of the outer peripheral portion of the roller, the downward protruding portion of the connector is accommodated in the concave portion of the groove having the U-shaped cross section. The lower protrusion not only damages the roller peripheral surface, but the lower protrusion is well locked with the inner peripheral wall surface of the concave portion of the U-shaped groove, and the lower protrusion eliminates slippage of the roller peripheral surface. The endless conveyor belt can be forcibly fed with rollers. This ensures that even the return side roller without a drive part can be fed without slippage with the endless conveyor belt.

更に、ベルト受面フレームの上面に送り方向の溝を複数本設ける構造とすれば、連結具又は中間連結具の下方突出部を溝内に収容して下方突出部がベルト受面フレームの上面と接触することがなくなり、送りに接触抵抗がなくなり、ベルト引張力が小さくできる。又、ベルト受面フレームに傷つけることもない。   Further, if a structure is provided in which a plurality of grooves in the feed direction are provided on the upper surface of the belt receiving surface frame, the lower protruding portion of the connecting tool or intermediate connecting tool is accommodated in the groove, and the lower protruding portion is connected to the upper surface of the belt receiving surface frame. There is no contact, there is no contact resistance in feeding, and the belt tension can be reduced. Further, the belt receiving surface frame is not damaged.

短ベルトの連結具には、ベルト下面からの下方突出部が有るものと、下方突出部がなくベルト下面と同一面とする場合がある。下方突出部が有る場合は、ベルト受面フレームの上面が下方突出部と接触しないように溝を設ける場合と、短ベルトの下面を支持するレール状の支持レールを設ける場合とがあるが、前者の方が実用的である。   There are cases where the short belt connector has a downward projecting portion from the lower surface of the belt, and there is no downward projecting portion and is flush with the lower surface of the belt. When there is a downward protrusion, there are a case where a groove is provided so that the upper surface of the belt receiving surface frame does not contact the downward protrusion and a case where a rail-like support rail that supports the lower surface of the short belt is provided. Is more practical.

更に、短ベルトの前後端の中間位置に中間連結具を設ければ、短ベルトの送り方向の長さの中間位置でもローラーの凹部と係止することができ、前後端の連結具と中間連結具の下方突出部によるローラーの凹部との係止のベルト長さに対する回数が増え、より確実に無端コンベヤベルトを滑りが少なく送れるようになる。
特に、ローラーの外周部凹部をU字状断面の溝をローラーの軸方向に延びるように放射状に複数設けて形成する構造では下方突出部が凹部内壁面と強く係止するので、滑ることなく高い係止力を付与できるばかりでなく、ローラーの円周の係止ピッチが短くなって係止力の合計力が高くなるか、又は同じ係止力の合計に対してローラーの外周長さ(ローラー半径)を短くできるという利点がある。
Furthermore, if an intermediate connector is provided at an intermediate position between the front and rear ends of the short belt, it can be locked to the concave portion of the roller even at an intermediate position in the length direction of the short belt. The number of times of locking with the concave portion of the roller by the downward projecting portion of the tool increases with respect to the belt length, and the endless conveyor belt can be more reliably fed with less slippage.
In particular, in the structure in which the outer peripheral recess of the roller is formed by forming a plurality of U-shaped cross-section grooves radially so as to extend in the axial direction of the roller, the lower protrusion is strongly locked to the inner wall surface of the recess, so that it is high without slipping. Not only can the locking force be applied, but the circumferential locking pitch of the roller is shortened and the total force of the locking force is increased, or the outer circumferential length of the roller (the roller (Radius) can be shortened.

又、ローラーの緊張装置を図17〜27に示すような2段伸長式の緊張装置7の構造とすれば、長時間使用又は長いベルト緩みに対しても無端コンベヤベルトを緊張状態を保持でき、ベルトの張り替えの回数を少なくし、又長い時間での滑りのないコンベヤ送りを可能とする。   Also, if the tensioning device of the roller has the structure of the two-stage extension type tensioning device 7 as shown in FIGS. 17 to 27, the endless conveyor belt can be kept in tension even when used for a long time or when the belt is loose. The number of times of belt re-stripping is reduced, and the conveyor can be fed without slipping in a long time.

図1は、実施例1を示す説明図である。FIG. 1 is an explanatory diagram illustrating the first embodiment. 図2は、実施例1の短ベルトとその連結を示す説明図である。FIG. 2 is an explanatory diagram showing the short belt and its connection in the first embodiment. 図3は、実施例1の無端コンベヤベルトとローラーの説明図である。FIG. 3 is an explanatory diagram of an endless conveyor belt and a roller according to the first embodiment. 図4は、実施例1のローラーを示す拡大正面図である。FIG. 4 is an enlarged front view showing the roller of Example 1. FIG. 図5は、実施例1のメダル搬送状態を示す説明図である。FIG. 5 is an explanatory diagram illustrating a medal conveyance state according to the first embodiment. 図6は、実施例1のベルト受面フレームの断面と短ベルトとの掛け具合を示す説明図である。FIG. 6 is an explanatory diagram showing a degree of hanging between the cross section of the belt receiving surface frame of the first embodiment and the short belt. 図7は、実施例1のローラーと短ベルトとの掛け具合を示す説明図である。FIG. 7 is an explanatory diagram illustrating how the roller and the short belt of Example 1 are hooked. 図8は、実施例1の駆動装置付緊張装置を示す斜視図である。FIG. 8 is a perspective view illustrating the tension device with a driving device according to the first embodiment. 図9は、実施例1の駆動装置付緊張装置の初期状態を示す正面図である。FIG. 9 is a front view illustrating an initial state of the tension device with a driving device according to the first embodiment. 図10は、実施例1の駆動装置付緊張装置の中間の伸び状態を示す正面図である。FIG. 10 is a front view showing an intermediate extension state of the tensioning device with a drive device according to the first embodiment. 図11は、実施例1の駆動装置付緊張装置の最大伸長状態を示す正面図である。FIG. 11 is a front view illustrating a maximum extension state of the tension device with a driving device according to the first embodiment. 図12は、実施例1の一方のリターン部に図8に示す駆動装置付緊張装置に代えて駆動装置なしの緊張装置を取付けた実施例1の変形例1のリターン部構造を示す説明図である。FIG. 12 is an explanatory view showing a return part structure of a first modification of the first embodiment in which a tension device without a driving device is attached to one return portion of the first embodiment instead of the tensioning device with the driving device shown in FIG. is there. 図13は、図12の変形例1のリターン部構造を示す分解斜視図である。FIG. 13 is an exploded perspective view showing the return part structure of Modification 1 of FIG. 図14は、変形例1の緊張装置の初期状態を示す斜視図である。FIG. 14 is a perspective view showing an initial state of the tensioning device of the first modification. 図15は、変形例1の緊張装置の伸び中間状態を示す正面図である。FIG. 15 is a front view showing an intermediate stretch state of the tensioning device of the first modification. 図16は、変形例1の緊張装置の最大伸長状態を示す正面図である。FIG. 16 is a front view showing a maximum extension state of the tensioning device of the first modification. 図17は、実施例1の駆動装置付緊張装置8に代わる駆動装置付きの2段伸長式の別機構の緊張装置7を使用した変形例2のリターン部構造を示す正面図である。FIG. 17 is a front view showing a return portion structure of Modification 2 using a tensioning device 7 of another mechanism of a two-stage extension type with a driving device instead of the tensioning device with a driving device 8 of Example 1. FIG. 図18は、変形例2のリターン部構造の少し伸びた状態を示す正面図である。FIG. 18 is a front view showing a slightly extended state of the return part structure of the second modification. 図19は、図18の状態から調整部材の位置を左方向に移動させた状態を示す正面図である。FIG. 19 is a front view showing a state in which the position of the adjustment member is moved leftward from the state of FIG. 図20は、変形例2のリターン部構造の最大伸長状態を示す正面図である。FIG. 20 is a front view showing a maximum extension state of the return part structure of the second modification. 図21は、変形例3が使用する中間連結具を取付けた短ベルトとその連結状態を示す説明図である。FIG. 21 is an explanatory diagram showing a short belt to which an intermediate connector used in Modification 3 is attached and its connected state. 図22は、変形例3の無端コンベヤベルトとローラーを示す説明図である。FIG. 22 is an explanatory view showing an endless conveyor belt and a roller according to the third modification. 図23は、変形例3のリターン部構造を示す分解斜視図である。FIG. 23 is an exploded perspective view showing the return part structure of the third modification. 図24は、変形例3のリターン部構造を示す斜視図であるFIG. 24 is a perspective view showing a return part structure of Modification 3. 図25は、変形例3で使用するローラーを示す斜視図である。FIG. 25 is a perspective view showing a roller used in the third modification. 図26は、変形例3で使用するローラーの拡大正面図である。FIG. 26 is an enlarged front view of a roller used in the third modification. 図27は、変形例3のローラーの縦断面図である。FIG. 27 is a vertical cross-sectional view of a roller of Modification 3.

本願発明の「送り方向には弾性変形できるが幅方向に変形しにくい短ベルト」とは、リターン部のローラーのローラー外周面の曲率に沿って変形できて、復路又は往路になって送れる程度の柔らかさがあるものであって、又コンベヤフレームの側壁体との接触で短ベルトの左右部分が大きく上向き又は下向きに湾曲変形しないで、湾曲部を曲れる程のある程度の剛性・硬さを有することを意味する。   The “short belt that can be elastically deformed in the feed direction but not easily deformed in the width direction” of the present invention can be deformed along the curvature of the roller outer peripheral surface of the roller of the return portion, and can be fed in the return path or the forward path. It has softness, and the right and left parts of the short belt do not bend greatly upward or downward due to contact with the side wall of the conveyor frame, and have a certain degree of rigidity and hardness enough to bend the curved portion. Means that.

本発明のコンベヤフレームの垂直の側壁体は、無端コンベヤベルトの往路・復路においてベルトと接触してベルトの左右の動きを規制して、湾曲した無端コンベヤベルトでも曲線的に送れるようにする。   The vertical side wall body of the conveyor frame of the present invention is in contact with the belt in the forward / return path of the endless conveyor belt to restrict the left and right movement of the belt so that even a curved endless conveyor belt can be fed in a curved line.

無端コンベヤベルトの短ベルトの長さ・巾・厚みは、コンベヤ搬送路の湾曲の曲率、搬送する物品の長さに応じて適切な寸法が採用される。
又、短ベルトの連結具としてはリベット・ボルトナット・ハトメ等が使用できる。又、短ベルトは高い引張力に耐え、搬送物品の重量に耐え、又摩擦に強い素材が選択される。帆布を複数枚積層したものが短ベルトに適する。
特に、リベットを連結具とし、しかも下方をワッシャを介してかしめるようにすれば、リベットと短ベルトの摩擦が少なくなり、短ベルトの水平折れ曲がりの回転運動が円滑にでき、湾曲した搬送路でのベルト送りが容易となる。
又、ステンレス製のボルト・ワッシャ・ナットに比べ、アルミ製のリベットとワッシャの方がボルト回転操作が不要な分打撃を与えるだけで連結できるので、部品コスト及び連結作業費も安価にできる。
しかも、短ベルトを連結する無端コンベヤベルトの長さの調整も短ベルト長さの単位で短縮したり、又は延長することが容易となる。又、一部のベルト部分の損傷があってもその損傷した部分の短ベルトを交換するので、部分損傷が解消でき易くする利点がある。
The length, width, and thickness of the short belt of the endless conveyor belt are appropriately determined according to the curvature of the conveyor conveyance path and the length of the article to be conveyed.
Also, rivets, bolt nuts, eyelets, etc. can be used as a short belt connector. In addition, the short belt can withstand a high tensile force, can withstand the weight of the conveyed article, and can be selected from a material that is resistant to friction. A laminate of multiple canvases is suitable for short belts.
In particular, if a rivet is used as a connecting tool and the lower part is caulked through a washer, the friction between the rivet and the short belt is reduced, and the horizontal belt can be smoothly bent and rotated in a curved conveyance path. The belt can be fed easily.
In addition, compared to stainless steel bolts, washers and nuts, aluminum rivets and washers can be connected only by hitting them without the need to rotate the bolts, so the parts cost and connection work cost can be reduced.
In addition, adjustment of the length of the endless conveyor belt connecting the short belts can be easily shortened or extended in units of the short belt length. In addition, even if a part of the belt is damaged, the short belt of the damaged part is replaced, so that there is an advantage that the partial damage can be easily solved.

以下、本発明の実施例を図面に基づいて説明する。   Embodiments of the present invention will be described below with reference to the drawings.

(図面の符号の説明)
図面中、1は実施例1のベルトコンベヤ装置、1は変形例1のベルトコンベヤ装置、1は変形例2のベルトコンベヤ装置、1は変形例3のベルトコンベヤ装置である。3は無端コンベヤベルト、3aは短ベルト、3bは丸孔、3cは長孔、3dは短ベルト3aの連結金具であるリベット、3dはそのリベット3dのベルト下面に突出した下部突出部、3eは短ベルト3aの中央部湾曲部、3fは短ベルト3aの前後端の中間に設けたリベットを用いた中間連結具、3gはその下方突出部、3hはリベット3d,3fに貫入してかしめてベルト材と滑らかに動けるようにするワッシャ、4はコンベヤフレーム、4aはベルト受面フレーム、4bは無端コンベヤベルトの左右端で垂直に立上った側壁体、4cはベルトリターン用のローラー、4cは同ローラーの外周部に設けた下部突出部3dを収める凹部、4cはローラー軸、4cは同ローラー軸に軸着したスプロケット、4cmは図22,23で示される他のローラーの凹部である。
(Explanation of reference numerals in drawings)
In the drawings, 1 is a belt conveyor device in Example 1, 1 1 of the belt conveyor modification 1, 1 2 of the belt conveyor Modification 2, 1 3 is a belt conveyor device of a modified example 3. 3 is an endless conveyor belt, 3a is a short belt, 3b is a round hole, 3c is a long hole, 3d is a rivet that is a connecting bracket of the short belt 3a, 3d 1 is a lower protruding portion that protrudes from the lower surface of the belt of the rivet 3d, 3e Is a curved portion at the center of the short belt 3a, 3f is an intermediate connector using a rivet provided in the middle of the front and rear ends of the short belt 3a, 3g is a downward projecting portion, 3h is inserted into the rivets 3d and 3f and caulked. Washer for smooth movement with belt material, 4 is a conveyor frame, 4a is a belt receiving surface frame, 4b is a side wall body vertically rising at the left and right ends of an endless conveyor belt, 4c is a belt return roller, 4c 1 the recess to accommodate the lower protruding portion 3d 1 provided on the outer periphery of the roller, 4c 2 are roller shaft, 4c 3 is sprocket pivotally attached to the roller shaft, 4 cm is 22 and 23 A recess of the other rollers shown.

又、図中5はモータを用いた駆動装置、5aは駆動装置の駆動出力軸に軸着したスプロケット、5bはローラー軸4cに軸着したスプロケット4cと上記スプロケット5aを伝動するチェーンである。
又、図中7は図17〜20及び図21〜27に示される2段伸長式の緊張装置、7aは軸受フレーム、7aは4辺を折曲させた軸受フレーム7aの縦辺の折曲部分である掛止片、7bは軸受フレーム7aに取付けられたローラー軸4cの軸受部、7cはスプリングを用いた圧縮バネ、7dはネジ軸、7eは同ネジ軸の回転操作の操作部、7fは上下のネジ軸7dに螺合した調整部材、7hはコンベヤフレーム4のベルト受面フレーム4aの折曲部の前後端にそれぞれ延長するようにリベットで取付けられる固定延長フレーム、7iは同固定延長フレーム7hをベルト受面フレーム4aに取付けるためのリベット孔、7jは固定延長フレーム7hの中央部に開口したローラー軸4cを水平横移動可能に貫入する長孔、7kは固定延長フレーム7hの4辺の縦辺の折曲部分である張出片である。mは実施例1及び変形例1〜3が搬送するメダルである。
Further, FIG. 5 is a driving apparatus using the motor, 5a sprocket which pivotally attached to the drive output shaft of the drive unit, 5b is a chain that transmission sprocket 4c 3 and the sprocket 5a which is pivotally attached to the roller shaft 4c 2 .
Further, tensioning device of the two-stage extendable figure 7 is shown in FIGS. 17-20 and FIG. 21 to 27, 7a are bent in the longitudinal sides of the bearing frame 7a obtained by bending the bearing frame, 7a 1 four sides moiety is a lock part, 7b bearing portion of the roller shaft 4c 2 attached to the bearing frame 7a, 7c is a compression spring with spring, 7d screw shaft, 7e operation unit of the rotational operation of the screw shaft, 7f is an adjustment member screwed to the upper and lower screw shafts 7d, 7h is a fixed extension frame attached with rivets so as to extend to the front and rear ends of the bent portion of the belt receiving surface frame 4a of the conveyor frame 4, and 7i is the same fixed rivet holes for mounting the extension frame 7h the belt receiving surface frame 4a, 7j are long holes that penetrate to be horizontally traverse the roller shaft 4c 2 which is open in the central portion of the fixed extension frame 7h, 7k fixed extension off A protruding piece is a bent portion of the longitudinal sides of the four sides of the over arm 7h. m is a medal carried by the first embodiment and the first to third modifications.

8は図1,8〜16に示される1段伸長式の緊張装置であり、8aは左右対の軸受フレーム、8bは同軸受フレーム8aに設けたローラー軸4cの軸受部、8cはスプリングを用いた圧縮バネ、8dはネジ軸、8gは軸受フレーム8aの4辺の縦の折曲部分である縦フレーム、8hはコンベヤフレーム4のベルト受面フレーム4aの折曲部の前後にそれぞれ延長するようにリベットで取付けられる固定延長フレーム、8iは同固定延長フレーム8hをベルト受面フレーム4aに取付けるためのリベット孔、8jは固定延長フレーム8hの中央に開口したローラー軸4cを水平横移動可能に貫入する長孔、8kは固定延長フレーム8hの2辺の縦の折曲部分である張出片、8lは軸受フレーム8aのガイド棒である。 8 is a 1-stage extendable tensioning device shown in FIG 1,8~16, bearing frame 8a right and left pair, 8b bearing portion of the roller shaft 4c 2 provided in the bearing frame 8a, 8c is a spring The compression spring used, 8d is a screw shaft, 8g is a vertical frame that is a vertical bent portion of four sides of the bearing frame 8a, and 8h extends before and after the bent portion of the belt receiving surface frame 4a of the conveyor frame 4. fixed extension frame mounted with rivets as, 8i are the rivet hole for mounting a fixing extension frame 8h belt receiving surface frame 4a, 8j is a roller shaft 4c 2 which is open at the center of the fixed extension frame 8h possible lateral transverse movement 8k is a projecting piece which is a vertical bent portion of two sides of the fixed extension frame 8h, and 8l is a guide rod of the bearing frame 8a.

図1〜図27に示す図面は、実施例1及びその実施例1の別形態例の変形例1,変形例2,変形例3を示す。   The drawings shown in FIGS. 1 to 27 show a first modification, a second modification, and a third modification of the first embodiment and another embodiment of the first embodiment.

図1〜図11に示す実施例1のベルトコンベヤ装置1は、前後端のローラーともに外方向に1段伸長式の緊張装置8で外方向に付勢するとともに、各緊張装置8の軸受フレームに駆動装置のモータ5を取付け、前後のリターン部のローラー4cを共に強制駆動ローラーとし、同ローラー4cの凹部4cはローラー外周部に円環状で断面U字状溝をローラー軸方向に複数設けた構造のものの例で、遊技店のメダル搬送用に使用したものである。 The belt conveyor apparatus 1 of Example 1 shown in FIGS. 1-11 is urged | biased outward with the tension | tensile_strength apparatus 8 of a 1 step extension | expansion type | formula with the roller of a front-and-rear end. Install the motor 5 of the drive unit, and both the forced drive roller roller 4c of the front and rear of the return portion, the concave portion 4c 1 of the roller 4c is provided with a plurality of U-shaped cross section groove annularly roller outer peripheral portion in the roller axis direction This is an example of a structure, which is used for transporting medals at an amusement store.

図12〜図16に示すベルトコンベヤ装置1は、実施例1の一方のリターン部の緊張装置8に取付けていた駆動装置5を取り除いて緊張装置8のみとなったリターン部構造の変形例1である。一方のリターン部が緊張装置8のみのリターン部構造とした実施例1の変形例1である。この変形例1でも、前後のベルトリターン用ローラーには外方向に前後端の2台の緊張装置8で引張力が働くようにしている。 12 to the belt conveyor 1 1 shown in FIG. 16, a modification of the return portion structure became only tensioning device 8 by removing the drive device 5 has been attached to the tensioning device 8 of one of the return portion of Example 1 1 It is. It is the modification 1 of Example 1 by which one return part was made into the return part structure only of the tension apparatus 8. FIG. Also in this modified example 1, tensile force is applied to the front and rear belt return rollers by two tensioning devices 8 at the front and rear ends in the outward direction.

図17〜図20に示すベルトコンベヤ装置1の変形例2は、実施例1の前後端の各緊張装置8を別機構の2段伸長式の緊張装置7に代えた例であって、実施例1の図1,8〜11に示す駆動装置付の緊張装置8の機構を改良して、ローラーの移動量を長くできる2段伸長式とした別の機構の緊張装置7に置換した例である。他の構造は実施例1と同じである。 Modification 2 of the belt conveyor 1 2 shown in FIGS. 17 to 20 is an example in which instead of the tensioning device 7 of the two-stage extendable different mechanisms each tensioning device 8 of the front and rear ends of Example 1, performed In an example in which the mechanism of the tensioning device 8 with the driving device shown in FIGS. 1 and 8 to 11 of Example 1 is improved and replaced with a tensioning device 7 of another mechanism which is a two-stage extension type capable of extending the moving amount of the roller. is there. Other structures are the same as those of the first embodiment.

図21〜図27に示すベルトコンベヤ装置1の変形例3は、前記変形例2において短ベルト3aとローラー4cを改良し、ローラー4cの外周部にローラー軸方向に延びた断面U字状溝を凹部4cとして設けた。
この変形例3の短ベルトは、図21に示すように短ベルトの送りの中間で巾の中間位置に丸孔3bを設けてこれにリベットの中間連結具3fを取付ける構造とし、それに合せてローラーも図25〜27,22に示すようにローラー軸方向に延びたU字断面形状の溝を凹部4cとする構造を使用し、ローラー4cの凹部4cとの係止力を高める好ましい例を示すものである。
その緊張装置は、変形例2と同じ左右端とも2段伸長式の駆動装置付緊張装置7を使用している。この変形例3では、無端コンベヤベルト3の連結具3d及び中間連結具3fの下方突出部3d,3gをローラー軸方向に延びるローラー4cのU字状溝の凹部4cに嵌入して、下方突出部3d,3gと凹部4cとが強く係止して、無端コンベヤベルト3をローラー4cで引張して送るように確実にする例である。
この例で、前後にある2段伸長式の緊張装置7がローラー4cを外方向に引張すれば、無端コンベヤベルト3は強くローラー外周面に密着して滑りがなく且つ大きいベルト緩みにも対応でき、より確実に無端コンベヤベルト3を送ることができる例である。
Modification of the belt conveyor 1 3 shown in FIGS. 21 to 27 3, in the second modification improves the short belts 3a and roller 4c, a U-shaped groove extending in the roller axis direction on the outer peripheral portion of the roller 4c It was provided as recesses 4c 1.
As shown in FIG. 21, the short belt of the modified example 3 has a structure in which a round hole 3b is provided at an intermediate position of the width in the middle of the feeding of the short belt, and an intermediate connector 3f of a rivet is attached thereto. preferred examples also use a structure in which the groove of the U-shaped cross-sectional shape extending in the roller axis direction and the recess 4c 1 as shown in FIG. 25~27,22, increase the locking force between the recess 4c 1 of the roller 4c It is shown.
The tension device uses the tension device 7 with a two-stage extension type drive device at both the left and right ends as in the second modification. In this modified example 3, the lower projections 3d 1 and 3g of the endless conveyor belt 3 and the intermediate connection 3f are fitted into the recess 4c 1 of the U-shaped groove of the roller 4c extending in the roller axial direction, In this example, the protrusions 3d 1 and 3g and the recess 4c 1 are firmly locked so that the endless conveyor belt 3 is pulled and fed by the roller 4c.
In this example, if the two-stage extension type tensioning device 7 at the front and rear pulls the roller 4c outward, the endless conveyor belt 3 strongly adheres to the outer peripheral surface of the roller, does not slip, and can cope with large belt slack. This is an example in which the endless conveyor belt 3 can be sent more reliably.

更に、本発明の前後の緊張装置は上記実施例に限定するものではないが、上記実施例1及びその変形例1〜3に示す緊張装置7,8はベルト緩みがあれば自動的に緩みをなくすことができ、しかもある程度伸びると更なる緊張ができるように調整できるので、好ましい形態である。
駆動装置5が緊張装置7,8があるローラー4cの軸受フレーム7a,8aに取付けられれば、ローラー4cは無端コンベヤベルト3を引張して水平方向に移動しても、駆動装置5,10はそのローラー4cの軸受フレーム7a,8aとともに移動するので、駆動装置5,10は常時ローラー4cとともに動いて強制駆動できる。
又、ローラーの駆動装置は前後一方のみ設ける場合と、前後とも駆動装置を設ける場合があるが、後者の方がコンベヤベルトの緩みをなくして確実にコンベヤベルトを送れる。
更に、ローラー4cの形状例としてローラー外周部に円環状の溝をローラー軸方向に複数設ける例と、ローラー外周部にローラー軸方向に延びるU字状の溝を形成して凹部4cとする構造の例を示している。
本発明において、ローラー4cの凹部形状、駆動装置を一方のみか前後両方ともに設けるかは、本発明の目的・用途に応じて適切な組み合せにすることが可能である。
Further, the tensioning device before and after the present invention is not limited to the above embodiment, but the tensioning devices 7 and 8 shown in the above embodiment 1 and its modifications 1 to 3 automatically loosen if there is a belt slack. This is a preferred form because it can be eliminated and can be adjusted to allow for more tension when stretched to some extent.
If the driving device 5 is attached to the bearing frames 7a and 8a of the roller 4c having the tensioning devices 7 and 8, the roller 4c pulls the endless conveyor belt 3 and moves in the horizontal direction. Since it moves together with the bearing frames 7a and 8a of the roller 4c, the driving devices 5 and 10 can always move with the roller 4c and be forcibly driven.
In addition, the roller drive device may be provided only on the front and rear sides, or on both the front and rear sides, but the latter can reliably convey the conveyor belt without loosening the conveyor belt.
Further, as an example of the shape of the roller 4c, a structure in which a plurality of annular grooves are provided in the roller outer peripheral portion in the roller axial direction, and a U-shaped groove extending in the roller axial direction is formed in the roller outer peripheral portion to form the concave portion 4c 1 An example is shown.
In the present invention, it is possible to make an appropriate combination depending on the purpose and application of the present invention whether the concave shape of the roller 4c and only one or both of the driving devices are provided.

(実施例1とその変形例1)
図1〜図11に示す実施例1は、前後端のローラーともに外方向に緊張装置8で付勢され、又駆動装置5のモータは各緊張装置8の水平移動する軸受フレーム8aに取付けられて強制駆動される。又、ローラー4cの凹部4cは円環状溝を軸方向に複数列に設けた例である。
又、その変形例1として実施例1の一方の駆動装置5を削除して、駆動装置なしのリターンローラー部にした例もあり、実施例1及び上記変形例1ともに前後のローラー4cに外部方向に付勢する緊張装置8を設けることで、ローラー外周面に強く無端コンベヤベルト3を密着するとともに、無端コンベヤベルト3の緩みを前後端の2つの緊張装置8で大きいベルト緩み量に対応することで、無端ベルトコンベヤ3の緩みに対応力を高めている。
(Example 1 and its modification 1)
In Embodiment 1 shown in FIGS. 1 to 11, both the front and rear rollers are urged outward by a tensioning device 8, and the motor of the driving device 5 is attached to a horizontally moving bearing frame 8 a of each tensioning device 8. Forced drive. Further, the recess 4c 1 of the roller 4c are examples provided in a plurality of rows of annular grooves in the axial direction.
In addition, as an alternative example, there is an example in which one drive device 5 of the example 1 is deleted and a return roller portion without the drive device is provided. In both the example 1 and the above-described alternative example 1, the front and rear rollers 4c are externally directed. By providing the tensioning device 8 that biases the endless conveyor belt 3 tightly against the outer peripheral surface of the roller, the looseness of the endless conveyor belt 3 can be accommodated by a large amount of belt loosening by the two tensioning devices 8 at the front and rear ends. Thus, the response force to the looseness of the endless belt conveyor 3 is increased.

(実施例1)
図1〜11に示す実施例1について説明する。
Example 1
Example 1 shown in FIGS. 1 to 11 will be described.

実施例1のコンベヤフレーム4はコ字状の板材を横向きにして、中央にベルト受面フレーム4aがくるように置いて、搬送方向に複数個継いでいる。そして、同ベルト受面フレーム4aの左右端に垂直に上った側壁体4bをベルト受面フレーム4aの上下方向に折曲した折曲部にボルトナット又はリベット(図示せず)で連結してベルト受面フレーム4aに沿って垂直なコンベヤの左右壁を形成している。   In the conveyor frame 4 of the first embodiment, a U-shaped plate material is placed sideways, and a belt receiving surface frame 4a is placed in the center, and a plurality of conveyor frames 4 are connected in the conveying direction. And the side wall body 4b which went up perpendicularly to the right-and-left end of the belt receiving surface frame 4a is connected with the bent part bent in the up-down direction of the belt receiving surface frame 4a with a bolt nut or a rivet (not shown). The left and right walls of the vertical conveyor are formed along the belt receiving frame 4a.

軸受フレーム8aはローラー軸4cを貫通させる軸穴を開口している。ローラー4cは左右側面ローラー軸4cを備えている。
このコンベヤフレーム4の固定延長フレーム8hの長孔8jにローラー4cのローラー軸4cをそれぞれ通し、軸受フレーム8aにその軸受部8bを取付けている。前後の張出片8k間の位置に軸受フレーム8aを配置してローラー4cに無端コンベヤベルト3を張架している。ネジ軸8dを前後の張出片8kに回転自在に貫通するとともに前後の張出片8kから突出したネジ軸8dの軸端にナットを螺合している。内側にある後の張出片8kと軸受フレーム8aの外側の前の縦フレーム8gの間には圧縮バネ8cを介装し、その圧縮バネ8cと前後の張出片8kと前後の縦フレーム8gにガイド棒8lを貫通し、前後の張出片8kから突出したガイド棒8lの軸端にナットを螺合して固定延長フレーム8hに固定している。
The bearing frame 8a is open the shaft hole through which the roller shaft 4c 2. Roller 4c is provided with a left and right side roller shaft 4c 2.
This long hole 8j of the fixed extension frame 8h conveyor frame 4 through the roller shaft 4c 2 of the roller 4c, respectively, are attached to the bearing portion 8b to the bearing frame 8a. A bearing frame 8a is disposed between the front and rear protruding pieces 8k, and the endless conveyor belt 3 is stretched around the roller 4c. The screw shaft 8d is rotatably passed through the front and rear projecting pieces 8k, and a nut is screwed onto the shaft end of the screw shaft 8d protruding from the front and rear projecting pieces 8k. A compression spring 8c is interposed between the rear extension piece 8k on the inner side and the front vertical frame 8g on the outer side of the bearing frame 8a, and the compression spring 8c, the front and rear extension pieces 8k, and the front and rear vertical frames 8g. The guide rod 8l is passed through, and a nut is screwed onto the shaft end of the guide rod 8l protruding from the front and rear projecting pieces 8k, and fixed to the fixed extension frame 8h.

この緊張装置8では軸受フレーム8aは固定延長フレーム8hの後の縦の折曲部分である張出片8kと軸受フレーム8aの前の縦の折曲部分である縦フレーム8gとの間の圧縮バネ8cによって軸受フレーム8aを外方向へ付勢して、ベルト緩みをとって無端コンベヤベルト3を常時引張して緊張状態にする。   In this tensioning device 8, the bearing frame 8a is a compression spring between a protruding piece 8k which is a vertical bent portion after the fixed extension frame 8h and a vertical frame 8g which is a vertical bent portion in front of the bearing frame 8a. The bearing frame 8a is urged outwardly by 8c, the belt is loosened, and the endless conveyor belt 3 is always pulled to be in a tension state.

このように、実施例1及び変形例1〜3では無端コンベヤベルト3及びローラー4cはその前後の緊張装置によって常時外方向に引張されて、ベルト緩みがないようにできている。更に、ローラー4cに無端コンベヤベルト3はその引張力で密着することで、前後両方のローラー4cのモータ(駆動装置)5で回動されると、滑ることなくコンベヤベルト3は確実に送られる。短ベルト連結のこの無端コンベヤベルト3の復路は緩んで垂みがちになるが、復路側も緊張装置8と駆動装置のモータ5で強制回動させることで引張され、更に垂みが少なくできる。   As described above, in the first embodiment and the first to third modifications, the endless conveyor belt 3 and the roller 4c are always pulled outward by the tensioning devices before and after the belt, and the belt is not loosened. Further, the endless conveyor belt 3 is brought into close contact with the roller 4c by its tensile force, so that the conveyor belt 3 is reliably fed without slipping when rotated by the motors (drive devices) 5 of both the front and rear rollers 4c. The return path of the endless conveyor belt 3 connected to the short belt is loosened and tends to hang, but the return path is also pulled by forcibly turning the tensioning device 8 and the motor 5 of the driving device, and the sag can be further reduced.

尚、この実施例1の緊張装置として図17〜27の変形例2,3の2段伸長式に引張できる機構の緊張装置7を採用すれば、引張できる長さを長くできるので、更にベルト緩みを少なくできる。   In addition, if the tensioning device 7 having a mechanism capable of pulling in the two-stage extension type of Modifications 2 and 3 of FIGS. 17 to 27 is adopted as the tensioning device of the first embodiment, the length that can be pulled can be increased, and therefore the belt is further loosened. Can be reduced.

この緊張装置7について説明すると、
この構造により、ネジ軸7dの左右いずれかのナットを回すと、ネジ軸7dが定位置で回転し、ネジ軸7と螺合した調整部材7fが左右いずれかに移動する。ナットを止めると調整部材7fは定位置に保持される。調整部材7fが左方向へ移動すると圧縮バネ7cが圧縮され、その復元力で軸受フレーム7aの左側(前)の掛止片7aを押して軸受フレーム7aが左方向へ移動し、無端コンベヤベルト3の前後端にあるローラー4cとローラー4cの間隔が拡大する。逆に調整部材7fを右方向へ移動させると、その調整部材7fが軸受フレーム7aの右側(後)の掛止片7aを押して軸受フレーム7aが右方向へ移動し、駆動側ローラー4cと従動側ローラー4cの間隔が縮小する。モータ5は軸受フレーム7aに取り付けられているから、軸受フレーム7aが移動しても駆動側ローラー4cとモータ5の間隔は変化せず、駆動力の伝達に影響はない。尚、この右側に移動するのは無端コンベヤベルト3の交換・短くする作業時のみである。
The tension device 7 will be described.
With this structure, when the left or right nut of the screw shaft 7d is turned, the screw shaft 7d rotates at a fixed position, and the adjustment member 7f screwed with the screw shaft 7 moves to the left or right. When the nut is stopped, the adjusting member 7f is held in a fixed position. Adjustment member 7f there is a compression spring 7c moves leftward is compressed, the bearing frame 7a is moved to the left by pushing the lock part 7a 1 of the left bearing frame 7a (front) by the restoring force, endless conveyor belt 3 The distance between the roller 4c and the roller 4c at the front and rear ends increases. Moving the reverse adjustment member 7f rightward, the bearing frame 7a is moved to the right the adjustment member 7f pushes the lock part 7a 1 of the right (rear) of the bearing frame 7a, the drive-side roller 4c and the driven The interval between the side rollers 4c is reduced. Since the motor 5 is attached to the bearing frame 7a, even if the bearing frame 7a moves, the distance between the driving roller 4c and the motor 5 does not change, and transmission of driving force is not affected. It should be noted that the right side is moved only when the endless conveyor belt 3 is replaced or shortened.

本変形例2,3では、左側のナットを回して調整部材7fを左方向へ移動させると、圧縮バネ7cの復元力で軸受フレーム7aが左方向へ移動してベルトが緊張される。適切な張力が作用したときにナットを止め、調整部材7fを定位置に保持する。その後、使用中にベルトが徐々に伸びるが、ベルトが伸びた分、圧縮バネ7cの復元力で軸受フレーム7aが左方向へ自然に移動して一定の張力が作用し、緊張が常に保持される。その状態を図17〜20に示している。   In the second and third modifications, when the left nut is turned to move the adjusting member 7f to the left, the restoring force of the compression spring 7c moves the bearing frame 7a to the left, and the belt is tensioned. When an appropriate tension is applied, the nut is stopped and the adjusting member 7f is held in place. Thereafter, the belt gradually expands during use. However, as the belt is extended, the restoring force of the compression spring 7c causes the bearing frame 7a to move naturally to the left, and a constant tension is applied, and the tension is always maintained. . The state is shown in FIGS.

圧縮バネ7cが圧縮前の状態に近くなって復元力が弱くなるか又は圧縮前の状態に復元して復元力が無くなると、ベルトがさらに伸びてもこれ以上緊張できなくなる。この場合、左側のナットを回して調整部材7fを左方向へさらに移動させると、圧縮バネ7cが圧縮されて復元力が再度発生し、伸びたベルトが緊張される。しかし、これを繰り返すと、いずれは軸受フレーム7aの左側の縦フレーム7gがコンベヤフレーム4の左側の張出片7kに接触して軸受フレーム7aが移動できなくなり、調整部材7fをさらに左方向へ移動させて圧縮バネ7cを圧縮しても、軸受フレーム7aは左方向へ移動しないので緊張力が発生せず、緊張不能となる。   If the compression spring 7c is close to the state before compression and the restoring force is weakened or restored to the state before compression and the restoring force is lost, no further tension can be obtained even if the belt further extends. In this case, when the adjustment nut 7f is further moved leftward by turning the left nut, the compression spring 7c is compressed, the restoring force is generated again, and the extended belt is tensioned. However, if this is repeated, the vertical frame 7g on the left side of the bearing frame 7a contacts the protruding piece 7k on the left side of the conveyor frame 4 so that the bearing frame 7a cannot move, and the adjustment member 7f moves further to the left. Even if the compression spring 7c is compressed, the bearing frame 7a does not move to the left, so that no tension is generated and tension is impossible.

この場合はベルトの交換が必要となる。左側の操作部7eのナットを反対方向に回して調整部材7fを右方向へ移動させると、調整部材7fが軸受フレーム7aの右側の縦フレーム7gを押して軸受フレーム7aが右方向へ移動し、前端のローラー4cと後端のローラー4cの間隔が縮小してベルトが緩む。そして、緩んだベルトを引き上げて短ベルトを一部取り外して無端コンベヤベルト3を短くする。あるいは、ベルトを伸びた分だけ切り取って両端部を接続しても良い。交換後は、左側のナットを回して調整部材7fを左方向へ移動させ、圧縮バネ7cの復元力で軸受フレーム7aを左方向へ移動させ、ベルトを適切な張力で緊張する。また、緊張力が作用している状態であっても、何らかのトラブルでベルトが断裂し、新しいベルトに交換するか又は断裂した部分を再接続する時にも、前記と同様にして作業が可能である。   In this case, the belt needs to be replaced. When the nut of the left operating portion 7e is turned in the opposite direction to move the adjusting member 7f to the right, the adjusting member 7f pushes the right vertical frame 7g of the bearing frame 7a to move the bearing frame 7a to the right, and the front end The distance between the roller 4c and the rear end roller 4c is reduced, and the belt is loosened. Then, the endless conveyor belt 3 is shortened by pulling up the loose belt and removing a part of the short belt. Alternatively, both ends may be connected by cutting out the belt as much as possible. After the replacement, the left nut is turned to move the adjusting member 7f to the left, the bearing frame 7a is moved to the left by the restoring force of the compression spring 7c, and the belt is tensioned with an appropriate tension. Even when tension is acting, the belt can be torn due to some trouble, and when replacing with a new belt or reconnecting the torn part, the work can be performed in the same manner as described above. .

尚、本実施例ではメダル供給ベルトコンベヤに取り付けたベルトコンベヤ装置1,1,1,1について説明したが、メダル回収ベルトコンベヤに取り付けた場合のベルトコンベヤ装置も構成及び作用効果は同じである。 The belt conveyor 1,1 1 in this embodiment attached to the medal supply belt conveyor, 1 2, 1 3 has been described, also structures, operations and effects of the belt conveyor apparatus when mounted to the medal recovery belt conveyor same It is.

本発明の技術は、主としてメダル遊技設備に利用されるが、重量ある小物の搬送する汎用のベルトコンベヤにも応用できる。   The technology of the present invention is mainly used for medal game facilities, but can also be applied to general-purpose belt conveyors for conveying heavy items.

m メダル
1 実施例1のベルトコンベヤ装置
変形例1のベルトコンベヤ装置
変形例2のベルトコンベヤ装置
変形例3のベルトコンベヤ装置
3 無端コンベヤベルト
3a 短ベルト
3b 丸孔
3c 長孔
3d リベット(連結具)
3d 下方突出部
3e ベルト巾湾曲部
3f 中間連結具
3g 下方突出部
3h ワッシャ
4 コンベヤフレーム
4a ベルト受面フレーム
4a
4b 側壁体
4c ベルトリターン用のローラー
4c 凹部
4c ローラー軸
4c スプロケット
5 駆動装置(モータ)
5a スプロケット
5b チェーン
7 2段伸長式の緊張装置
7a 軸受フレーム
7a 掛止片
7b 軸受部
7c 圧縮バネ
7d ネジ軸
7e 操作部
7f 調整部材
7h 固定延長フレーム
7i リベット孔
7j 長孔
7k 張出片
8 1段伸長式の緊張装置
8a 軸受フレーム
8b 軸受部
8c 圧縮バネ
8d ネジ軸
8e 操作部
8g 縦フレーム
8h 固定延長フレーム
8i リベット孔
8j 長孔
8k 張出片
8l ガイド棒
m medal 1 Example 1 of the belt conveyor 1 1 modification 1 of the belt conveyor 1 2 Modification 2 of the belt conveyor 1 3 Modification 3 of the belt conveyor 3 endless conveyor belts 3a short belts 3b circular hole 3c slot 3d rivet (connector)
3d 1 downward projecting portion 3e belt width curved portion 3f intermediate connector 3g downward projecting portion 3h washer 4 conveyor frame 4a belt receiving surface frame 4a 1 groove 4b side wall body 4c belt return roller 4c 1 recess 4c 2 roller shaft 4c 3 sprocket 5 Drive unit (motor)
5a Sprocket 5b Chain 7 Two-stage extension type tensioning device 7a Bearing frame 7a 1 Stopping piece 7b Bearing portion 7c Compression spring 7d Screw shaft 7e Operation portion 7f Adjusting member 7h Fixed extension frame 7i Rivet hole 7j Long hole 7k Overhanging piece 8 One-stage extension type tensioning device 8a Bearing frame 8b Bearing portion 8c Compression spring 8d Screw shaft 8e Operating portion 8g Vertical frame 8h Fixed extension frame 8i Rivet hole 8j Long hole 8k Overhang piece 8l Guide rod

Claims (9)

送り方向には弾性変形できるが幅方向に変形しにくい複数の短ベルトをその前後端同士で水平に折れ曲がり可能に連結具で連結して長尺の無端コンベヤベルトを構成し、同無端コンベヤベルトの往路のベルトを受けるために搬送方向に複数に継がれたベルト受面フレームと,同ベルト受面フレームの左右それぞれに取付けられてベルトの左右動を規制する垂直な側壁体と,前記継がれたベルト受面フレームの始端終端となる前後端の位置で枢支されるベルトリターン用ローラーとから構成されたコンベヤフレームを設け、同コンベヤフレームの前後端のローラー間に前記無端コンベヤベルトを張り渡し、ローラーを外方向に付勢して同無端コンベヤベルトを緊張させる緊張装置と、前後端の少なくとも一方のローラーを回動させる駆動装置を備えたベルトコンベヤ装置に於いて、短ベルトの連結構造が、各短ベルトの前後端同士を重ね合わせ、その重なり部の上側の短ベルトに少なくとも3個以上の丸孔を開口し、重なり部の下側の短ベルトに丸孔を開口するとともにその左右位置に少なくとも1個以上の前後方向の長孔をそれぞれ開口し、中間位置の上下の丸孔に連結具を連通して留め、上側の短ベルトの左右の丸孔と下側の短ベルトの左右の長孔にも連結具を連通して留めて、中間の上下丸孔の連結具を中心にして水平に折れ曲がり可能に短ベルトを連結した構造とし、前後端にある前記ローラーは無端コンベヤベルトの短ベルトを連結する前後端の連結具のベルト下面から突出する下方突出部を収容する凹部をローラー外周に設けるとともに、送り方向に対し同凹部に連結部の下方突出部を嵌入して無端コンベヤベルトを確実に送れるようにしたことを特徴とする、ベルトコンベヤ装置。   A plurality of short belts that can be elastically deformed in the feed direction but are difficult to deform in the width direction are connected to each other by a connecting tool that can be bent horizontally at the front and rear ends thereof to form a long endless conveyor belt. A belt receiving surface frame joined in plural in the conveying direction to receive the belt in the forward path, a vertical side wall body that is attached to each of the left and right sides of the belt receiving surface frame to restrict the lateral movement of the belt, and the joint A conveyor frame composed of a belt return roller pivotally supported at the position of the front and rear ends serving as the start and end of the belt receiving surface frame, and the endless conveyor belt is stretched between the front and rear rollers of the conveyor frame; A tensioning device that urges the rollers outward to tension the endless conveyor belt, and a drive device that rotates at least one of the front and rear rollers. In the obtained belt conveyor device, the short belt connection structure is such that the front and rear ends of each short belt overlap each other, and at least three or more round holes are opened in the short belt above the overlap, and below the overlap. Open a round hole in the short belt on the side and open at least one long hole in the front-rear direction in the left and right positions, and connect the fasteners to the upper and lower round holes in the middle position. A structure in which the right and left round holes and the left and right long holes of the lower belt are connected and fastened together, and the short belt is connected so that it can be folded horizontally around the middle upper and lower round holes. The roller at the front and rear ends is provided with a recess on the outer periphery of the roller that accommodates a lower protruding portion that protrudes from the lower surface of the belt of the front and rear end coupling device that connects the short belt of the endless conveyor belt, and the same recess with respect to the feed direction. Connecting part Characterized in that to ensure that they send the endless conveyor belt fitted the downward projecting portion, a belt conveyor system. 無端コンベヤベルトを構成する短ベルトが、短ベルトの前後端の中間位置にその前後端に取付ける連結具と略同じ構造の中間連結具を取付けるとともに、中間連結具の下部もベルト下面から突出する下方突出部を有し、しかもローラーの凹部に収容されて嵌入できる構造としたものを使用した、請求項1記載のベルトコンベヤ装置。   The short belt that constitutes the endless conveyor belt is mounted at an intermediate position between the front and rear ends of the short belt, with an intermediate connector having substantially the same structure as the connector attached to the front and rear ends thereof, and the lower part of the intermediate connector also projects downward from the lower surface of the belt The belt conveyor apparatus according to claim 1, wherein the belt conveyor apparatus has a protruding portion and is configured to be accommodated in a recessed portion of a roller. 短ベルトが、その左右の側辺を内側へやや湾曲するように中間の幅を前後の幅より短くし、且つ前後左右の角部を斜めに又は丸く形成したものである、請求項1,2いずれか記載のベルトコンベヤ装置。   The short belt has an intermediate width shorter than the front and rear widths so that the left and right sides are slightly curved inward, and the front and rear and right and left corners are formed obliquely or rounded. Any one of the belt conveyor apparatuses. 短ベルトが、帆布を複数枚積層して形成されたものである、請求項1〜3いずれか記載のベルトコンベヤ装置。   The belt conveyor device according to claim 1, wherein the short belt is formed by laminating a plurality of canvases. ローラーの前記凹部が、ローラーの外周部に円環状の複数の溝を設けて形成された、請求項1〜4いずれか記載のベルトコンベヤ装置。   The belt conveyor device according to any one of claims 1 to 4, wherein the concave portion of the roller is formed by providing a plurality of annular grooves on an outer peripheral portion of the roller. ローラーの前記凹部が、円柱状のローラーの外周部にU字状断面の溝をローラーの軸方向に沿って延びるように且つ円周方向に放射状に複数設けて形成された、請求項1〜4いずれか記載のベルトコンベヤ装置。   The said recessed part of a roller was formed in the outer peripheral part of a cylindrical roller so that the groove | channel of a U-shaped cross section might be radially provided in the circumferential direction so that it might extend along the axial direction of a roller. Any one of the belt conveyor apparatuses. 前後端にあるローラーを軸支する軸受フレームがコンベヤフレームに沿って進退可能に配置され、同軸受フレームを前記緊張装置が外方向に付勢するとともに同軸受フレームにローラーを回動させる駆動装置を設けた構造である、請求項1〜6いずれか記載のベルトコンベヤ装置。   A bearing frame that pivotally supports the rollers at the front and rear ends is disposed so as to be able to advance and retreat along the conveyor frame, and the tensioning device urges the bearing frame outward and rotates the roller to the bearing frame. The belt conveyor apparatus of any one of Claims 1-6 which is the structure provided. 前後端にある一方又は両方の緊張装置の構造が、前記軸受フレームの前後に掛止片を設け、その前後の前記掛止片間位置に前記掛止片間の間隔より狭幅の調整部材を配置し、前記軸受フレームの前後位置に固定の張出片を前記軸受フレームの進退範囲より大きい間隔をおいて設け、その前後の前記張出片にネジ軸を回転自在に貫通するとともに前記調整部材に螺合し、前記ネジ軸を回転操作する回転操作部を設け、前記調整部材と前記軸受フレームの外側の前記掛止片の間に圧縮バネを介装した構造である、請求項7記載のベルトコンベヤ装置。   The structure of one or both of the tensioning devices at the front and rear ends is provided with hooking pieces on the front and rear sides of the bearing frame, and an adjustment member having a width narrower than the interval between the hooking pieces at the front and rear positions of the hooking pieces. And a fixed projecting piece is provided at a front and rear position of the bearing frame at a larger interval than the advance and retreat range of the bearing frame, and a screw shaft is rotatably passed through the front and rear projecting pieces and the adjusting member The structure according to claim 7, wherein a rotation operation part that rotates the screw shaft is provided, and a compression spring is interposed between the adjustment member and the latching piece outside the bearing frame. Belt conveyor device. 前後端にある一方又は両方の緊張装置の構造が、前記ローラーを軸支する軸受フレームをコンベヤフレームに沿って進退可能に配置し、前記軸受フレームの外側の前後位置に固定の張出片を前記軸受フレームの進退範囲より大きい間隔をおいて設け、その前後の張出片と前記軸受フレームにネジ軸を回転自在に貫通し、前記軸受フレームの内側とその反対側にある張出片との間に圧縮バネを介装した、請求項7記載のベルトコンベヤ装置。
The structure of one or both of the tensioning devices at the front and rear ends arranges a bearing frame that pivotally supports the roller along a conveyor frame so that the protruding pieces fixed to the front and rear positions outside the bearing frame are fixed. arranged at a greater distance than the reciprocating range of the bearing frame, rotatably penetrates the screw shaft before and after the Zhang pieces and the bearing frame thereof, the projecting pieces on the inside and the opposite side of the bearing frame The belt conveyor apparatus according to claim 7, wherein a compression spring is interposed therebetween.
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