JP6893674B2

JP6893674B2 - Hub structure

Info

Publication number: JP6893674B2
Application number: JP2016119419A
Authority: JP
Inventors: 太久磨守屋; 孝行坂巻
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-15
Filing date: 2016-06-15
Publication date: 2021-06-23
Anticipated expiration: 2036-06-15
Also published as: JP2017222473A

Description

本発明はハブ構造に関するものであり、特に、ベルト、フィルム等の帯状材の一端部又は紐の一端部を各々固定して、帯状材及び紐を外周面上に巻き取るハブ構造に関するものである。 The present invention relates to a hub structure, and more particularly to a hub structure in which one end of a belt-shaped material such as a belt or a film or one end of a string is fixed and the band-shaped material and the string are wound on an outer peripheral surface. ..

従来、帯状材又は紐の一端部を固定して、前記帯状材又は前記紐を外周面上に巻き取るハブを使用する装置として、例えばテープカセットや、紙幣や郵便物を搬送する紙葉搬送機械、ベルトパーティション、及び、釣用のスピニングリール等が知られており、また種々の構造が提案されている。 Conventionally, as a device using a hub for fixing one end of a strip-shaped material or a string and winding the strip-shaped material or the string on an outer peripheral surface, for example, a tape cassette or a paper leaf transporting machine for transporting banknotes or mail. , Belt partitions, spinning reels for fishing and the like are known, and various structures have been proposed.

それらのハブ構造は、いずれも帯状材又は紐の一端部を固定して、前記帯状材又は前記紐を外周面上に巻き取るように構成されているが、例えば特許文献１で知られる構造では、帯状材の一端部をハブに設けたスリット等に挿入し、そのスリットで一端部を挟んで固定した状態にして、そのハブの外周面に帯状材を巻き取る構造が採用されている。 Each of these hub structures is configured to fix one end of the strip-shaped material or the string and wind the strip-shaped material or the string on the outer peripheral surface, but in the structure known in Patent Document 1, for example. , One end of the strip is inserted into a slit or the like provided in the hub, the one end is sandwiched between the slits and fixed, and the strip is wound around the outer peripheral surface of the hub.

特開平６−１１９７４８号公報。Japanese Unexamined Patent Publication No. 6-1197748.

しかしながら、従来のハブにおいて、帯状材や紐の一端部を固定する構造では、ハブに設けたスリットに帯状材や紐の一端部をハブに設けたスリットに単に挿入し、そのスリットで一端部を挟んで固定するようにしている。そのため、帯状材や紐の引き出し終端時に、その終端となる一端部に強い引っ張り力が加わると、一端部がスリットから抜け出て、帯状材や紐がハブから外れてしまうという問題点があった。 However, in the conventional hub, in the structure in which one end of the strip or string is fixed, one end of the strip or string is simply inserted into the slit provided in the hub, and the one end is inserted into the slit provided in the hub. I try to pinch and fix it. Therefore, when a strong pulling force is applied to one end of the strip or string at the end of drawing out, there is a problem that one end of the strip or string comes out of the slit and the strip or string comes off from the hub.

そこで、帯状材又は紐の一端部を強固に固定し、帯状材又は紐の一端部がハブ本体から容易に外れることがないようにするために解決すべき技術的課題が生じてくるのであり、本発明はこの課題を解決することを目的とする。 Therefore, a technical problem to be solved arises in order to firmly fix one end of the strip or string so that one end of the strip or string does not easily come off from the hub body. An object of the present invention is to solve this problem.

本発明は上記目的を達成するために提案されたものであり、請求項１記載の発明は、帯状材又は紐の一端部を固定して、前記帯状材又は前記紐を外周面上に巻き取るハブ構造において、前記外周面に前記帯状材又は前記紐の一端部を差し込むための開口を有したハブ本体と前記ハブ本体の前記開口を開閉可能に閉じる円弧状のカバーとを備え、前記カバーは、巻回方向両端側に分かれて各々設けられた第１フック及び第２フックと、前記カバーの内面に設けられた第１係止歯とを有し、前記ハブ本体は、外周面に前記開口を設けて筒状に形成されたアウターリング領域部と、筒状に形成されて前記アウターリング領域部の内側に設けられたインナーリング領域部と、前記アウターリング領域部の前記開口に前記第１フックと係脱可能に設けられた第３フック及び前記第２フックと係脱可能に設けられた第４フックと、前記開口から差し込まれた前記帯状材又は前記紐の一端部を、前記開口を閉じた前記カバーの前記第１係止歯と共に挟持固定するように設けられた第２係止歯とを有し、前記第１係止歯及び前記第２係止歯は、側面視で鋭角な突起で形成され、前記第１係止歯の突起又は前記第２係止歯の突起の少なくとも一方は、側面視で前記ハブ本体の周方向に沿って連続して複数設けられ、前記第１係止歯の突起又は前記第２係止歯の突起の何れか一方は、側面視で前記帯状材又は前記紐が引き出される方向と反対の方向へ傾いて形成されていることを特徴とする。 The present invention has been proposed to achieve the above object, and the invention according to claim 1 fixes one end of a strip or string and winds the strip or string on an outer peripheral surface. In the hub structure, the hub body includes a hub body having an opening for inserting one end of the strip-shaped material or the string on the outer peripheral surface, and an arc-shaped cover that closes the opening of the hub body so as to be openable and closable. The hub body has the first hook and the second hook provided on both ends in the winding direction and the first locking tooth provided on the inner surface of the cover, and the hub body has the opening on the outer peripheral surface. The first in the opening of the outer ring region portion formed in a tubular shape and provided inside the outer ring region portion, and the opening of the outer ring region portion. The opening is opened with the third hook provided detachably from the hook, the fourth hook provided detachably with the second hook, and one end of the strip-shaped material or the string inserted from the opening. It has a second locking tooth provided so as to be sandwiched and fixed together with the first locking tooth of the closed cover, and the first locking tooth and the second locking tooth are sharp in side view. A plurality of protrusions of the first locking tooth or at least one of the protrusions of the second locking tooth are continuously provided along the circumferential direction of the hub body in a side view, and the first engagement is provided. either projections or the second locking teeth of projections Tomeha is characterized by being formed by have inclined to the direction to be pulled out the strip material or the string in a side view in the opposite direction.

この構成によれば、まず、前記第１フックと前記第３フックの係合及び前記第２フックと前記第４フックの係合をそれぞれ解き、前記カバーを前記ハブ本体から取り外して、前記ハブ本体の前記開口を開ける。次いで、前記帯状材又は前記紐の一端部を前記開口から、前記ハブ本体の前記インナーリング領域部の前記第２係止歯上に、前記第２係止歯上と十分重なるまで差し込む。その後、前記カバーを前記ハブ本体に取り付け、前記第１フックと前記第３フック及び前記第２フックと前記第４フックを各々係合させる。これにより、前記帯状材又は前記紐の一端部側は、前記ハブ本体内において前記カバーの前記第１係止歯と前記ハブ本体の前記第２係止歯で挟持固定されるとともに、前記第１フックと前記第３フックとの間でも前記帯状材又は前記紐の一部が挟持固定される。したがって、前記帯状材又は前記紐の一端部側は、前記第１係止歯と前記第２係止歯との挟持、及び、前記第１フックと前記第３フックとの挟持により、前記ハブ本体側に強固に固定される。そして、この強固な固定により、例え、終端時に前記帯状材や前記紐に強い引っ張り力が加わっても、一端部側が前記ハブから外れてしまうことがない。また、前記帯状材又は前記紐のハブに対する取り付けも簡単にできる。さらに、前記カバーを前記ハブ本体に取り付けるだけで前記帯状材又は前記紐の一端部を強固に固定することができるので、接着剤や保持部材を使用する必要がなくなり、製品コストを下げることができる。 According to this configuration, first, the engagement between the first hook and the third hook and the engagement between the second hook and the fourth hook are disengaged, the cover is removed from the hub body, and the hub body is removed. Open the opening of. Next, one end of the strip or the string is inserted through the opening onto the second locking tooth of the inner ring region of the hub body until sufficiently overlapped with the second locking tooth. After that, the cover is attached to the hub body, and the first hook and the third hook and the second hook and the fourth hook are engaged with each other. As a result, the strip-shaped material or one end side of the string is sandwiched and fixed by the first locking tooth of the cover and the second locking tooth of the hub body in the hub body, and the first A part of the strip-shaped material or the string is also sandwiched and fixed between the hook and the third hook. Therefore, the strip-shaped material or one end side of the string is sandwiched between the first locking tooth and the second locking tooth, and the hub body is sandwiched between the first hook and the third hook. It is firmly fixed to the side. Then, due to this strong fixing, even if a strong pulling force is applied to the strip-shaped material or the string at the end, one end side does not come off from the hub. Further, the strip-shaped material or the string can be easily attached to the hub. Further, since the band-shaped material or one end of the string can be firmly fixed only by attaching the cover to the hub body, it is not necessary to use an adhesive or a holding member, and the product cost can be reduced. ..

請求項２記載の発明は、請求項１記載の構成において、前記カバー及び前記ハブ本体は、合成樹脂材で形成してなる、ハブ構造を提供する。 The invention according to claim 2 provides a hub structure in which the cover and the hub body are made of a synthetic resin material in the configuration according to claim 1.

この構成によれば、前記カバー及び前記ハブ本体をそれぞれ、合成樹脂材により射出成形などして簡単に成形することができる。 According to this configuration, the cover and the hub body can be easily molded by injection molding or the like with a synthetic resin material, respectively.

この構成によれば、前記第１係止歯の前記突起は、少なくとも２山以上設け、前記第２係止歯の前記突起は少なくとも１山以上設けることにより、前記第１係止歯と前記第２係止歯との間に挟んだ前記帯状材又は前記紐の一端部の挟持固定を更に強固にすることができる。 According to this configuration, the protrusions of the first locking tooth are provided with at least two ridges, and the protrusions of the second locking tooth are provided with at least one ridge, whereby the first locking tooth and the first locking tooth are provided. 2 It is possible to further strengthen the holding and fixing of the strip-shaped material or one end of the string sandwiched between the locking teeth.

この構成によれば、前記第１係止歯の前記突起は、少なくとも１山以上設け、前記第２係止歯の前記突起は少なくとも２山以上設けることにより、前記第１係止歯と前記第２係止歯との間に挟んだ前記帯状材又は前記紐の一端部の挟持固定を更に強固にすることができる。 According to this configuration, the protrusions of the first locking tooth are provided with at least one ridge, and the protrusions of the second locking tooth are provided with at least two ridges, whereby the first locking tooth and the first locking tooth are provided. 2 It is possible to further strengthen the holding and fixing of the strip-shaped material or one end of the string sandwiched between the locking teeth.

請求項３記載の発明は、請求項１又は２に記載の構成において、前記第１係止歯は、前記カバーの前記第１フック側に前記第１フックと隣接して設けてなる、ハブ構造を提供する。 The invention according to claim 3 has a hub structure in which the first locking tooth is provided adjacent to the first hook on the first hook side of the cover in the configuration according to claim 1 or 2. I will provide a.

この構成によれば、前記カバーの前記第１フックと隣接して前記第１係止歯を設けることにより、前記第１フックの剛性力を高めて前記帯状材又は前記紐の引き出し側の挟持力を増大でき、前記第１係止歯と前記第２係止歯との間に挟んだ前記帯状材又は前記紐の一端部の挟持固定を更に強固にすることができる。 According to this configuration, by providing the first locking tooth adjacent to the first hook of the cover, the rigidity force of the first hook is increased and the holding force of the strip-shaped material or the string on the pull-out side is increased. Can be increased, and the pinching and fixing of the band-shaped member or one end of the string sandwiched between the first locking tooth and the second locking tooth can be further strengthened.

請求項４記載の発明は、請求項１、２又は３に記載の構成において、前記帯状材又は前記紐は、前記カバーの前記第１フック側から前記アウターリング領域部の外周面上に引き出されて巻回される、ハブ構造を提供する。 In the invention according to claim 4, in the configuration according to claim 1, 2 or 3 , the strip or the string is pulled out from the first hook side of the cover onto the outer peripheral surface of the outer ring region portion. Provides a hub structure that is wound around.

この構成によれば、前記帯状材又は前記紐が、前記カバーの前記第１フック側から前記アウターリング領域部上に引き出されて前記アウターリング領域部上に巻回されると、引き出し時に前記カバーが弾性変形してフックが外れるのを防止でき、前記第１フックと前記第３フックとの係合及び前記第２フックと前記第４フックとの係合をそれぞれ強固にすることができる。 According to this configuration, when the strip-shaped material or the string is pulled out from the first hook side of the cover onto the outer ring region portion and wound on the outer ring region portion, the cover is pulled out at the time of pulling out. Can be elastically deformed to prevent the hook from coming off, and the engagement between the first hook and the third hook and the engagement between the second hook and the fourth hook can be strengthened.

請求項５記載の発明は、請求項１、２、３又は４に記載の構成において、前記カバーの前記第２フック側には、前記第４フックに対する前記第２フックの係合を外す治具を挿入するカバー取り外し口を設けてなる、ハブ構造を提供する。 The invention according to claim 5 is a jig for disengaging the second hook with respect to the fourth hook on the second hook side of the cover in the configuration according to claim 1, 2, 3 or 4. Provided is a hub structure provided with a cover removal port for inserting.

この構成によれば、前記カバーの取り外し時に、ドライバー等の取り外し工具先端を前記カバー取り外し口に差し込んで、前記第４フックに対する前記第２フックの前記第４フックに対する係合を外すことにより、前記カバーを前記ハブ本体から簡単に取り外すことができる。 According to this configuration, when the cover is removed, the tip of a removal tool such as a screwdriver is inserted into the cover removal port to disengage the second hook from the fourth hook with respect to the fourth hook. The cover can be easily removed from the hub body.

請求項６記載の発明は、請求項１、２、３、４又は５に記載の構成において、前記第１係止歯は、前記第１フックの側面に設け、前記第２係止歯は、前記第３フックの側面に設けてなる、ハブ構造を提供する。 The invention according to claim 6 has the configuration according to claim 1, 2, 3, 4 or 5 , wherein the first locking tooth is provided on the side surface of the first hook, and the second locking tooth is provided. Provided is a hub structure provided on the side surface of the third hook.

この構成によれば、前記第１フックの側面に前記第１係止歯を設け、前記第３フックの側面に前記第２係止歯を設けることにより、前記ハブの構造の簡略化及びコンパクト化を図ることができる。 According to this configuration, the structure of the hub is simplified and made compact by providing the first locking tooth on the side surface of the first hook and providing the second locking tooth on the side surface of the third hook. Can be planned.

発明によれば、帯状材又は紐の一端部側は、ハブ本体内においてカバーの第１係止歯と前記ハブ本体の第２係止歯で挟持固定されるとともに、第１フックと第３フックとの間でも帯状材又は紐の一部が挟持固定される。したがって、ハブでの挟持固定がより強固になり、終端時に前記帯状材や前記紐に強い引っ張り力が加わっても、前記帯状材や紐が前記ハブから簡単に外れてしまうことがない。また、ハブ本体からカバーを外し、帯状材又は紐の一端部を開口に差し込んだ後、カバーを閉じれることにより、帯状材又は紐の一端部をハブ本体内に取り付けることができるので、取り付け作業も簡単になる。さらに、前記カバーを前記ハブ本体に取り付けるだけで前記帯状材又は前記紐の一端部を強固に固定することができるので、接着剤や保持部材を使用する必要がなくなり、製品コストを下げることも可能になる。 According to the invention, one end side of the strip or string is sandwiched and fixed by the first locking tooth of the cover and the second locking tooth of the hub body in the hub body, and the first hook and the third hook are fixed. A part of the strip-shaped material or the string is also sandwiched and fixed between the and. Therefore, the holding and fixing at the hub becomes stronger, and even if a strong pulling force is applied to the band-shaped material or the string at the end, the band-shaped material or the string does not easily come off from the hub. Further, by removing the cover from the hub body, inserting one end of the band or string into the opening, and then closing the cover, one end of the band or string can be installed inside the hub body. Will also be easy. Further, since the band-shaped material or one end of the string can be firmly fixed only by attaching the cover to the hub body, it is not necessary to use an adhesive or a holding member, and the product cost can be reduced. become.

本発明に係るハブ構造を使用した紙葉搬送機械の一例を模式的に示す構成配置図である。It is a block diagram which shows typically an example of the paper sheet transport machine using the hub structure which concerns on this invention. 図１に示した紙葉搬送機械の軸部の一構成例を示す斜視図である。It is a perspective view which shows one structural example of the shaft part of the paper leaf transfer machine shown in FIG. 本発明に係るハブ構造の第１実施例として示すハブの正面図である。It is a front view of the hub shown as the 1st Example of the hub structure which concerns on this invention. ハブ本体からカバーを取り外した状態で示す同上第１実施例におけるハブの斜視図である。It is a perspective view of the hub in the 1st Example of the above which shows the state which the cover is removed from the hub main body. 図３のＡ−Ａ線拡大断面図である。FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG. 同上第１実施例のハブ構造におけるハブ本体の平面図である。It is a top view of the hub main body in the hub structure of 1st Example of the same as above. 図６の矢印Ｂ方向より見た同上ハブ本体の側面図である。It is a side view of the hub body of the same as seen from the direction of arrow B of FIG. 図６のＣ−Ｃ線断面図である。FIG. 6 is a cross-sectional view taken along the line CC of FIG. 図６のＤ−Ｄ線断面図である。FIG. 6 is a cross-sectional view taken along the line DD of FIG. 同上第１実施例のハブ構造におけるカバーの平面図である。It is a top view of the cover in the hub structure of 1st Example of the same as above. 同上第１実施例のハブ構造におけるカバーの正面図である。It is a front view of the cover in the hub structure of 1st Example of the same as above. 同上第１実施例のハブ構造におけるカバーの底面図である。It is the bottom view of the cover in the hub structure of 1st Example of the same as above. 図１０のＥ−Ｅ線断面図である。FIG. 10 is a cross-sectional view taken along the line EE of FIG. 従来技術品のハブ構造と本発明のハブ構造との接合強度の検証結果を示す図である。It is a figure which shows the verification result of the bonding strength between the hub structure of the prior art product, and the hub structure of this invention. 従来技術品に対する本発明品の接合強度の検証結果を示す図である。It is a figure which shows the verification result of the bonding strength of the product of this invention with respect to the prior art product. 本発明に係るハブ構造の第２実施例として示すハブの正面図である。It is a front view of the hub shown as the 2nd Example of the hub structure which concerns on this invention. 図１６のＦ−Ｆ線拡大断面図である。FIG. 16 is an enlarged cross-sectional view taken along the line FF of FIG. 同上第２実施例のハブ構造におけるハブ本体の側面図である。It is a side view of the hub main body in the hub structure of the 2nd Example of the same as above. 図１８のＧ−Ｇ線断面図である。FIG. 8 is a cross-sectional view taken along the line GG of FIG. 図１９のＨ−Ｈ線断面図である。FIG. 19 is a cross-sectional view taken along the line HH of FIG. 同上第２実施例のハブ構造におけるカバーの平面図である。It is a top view of the cover in the hub structure of the 2nd Example of the same as above. 同上第２実施例のハブ構造におけるカバーの正面図である。It is a front view of the cover in the hub structure of the 2nd Example of the same as above. 同上第２実施例のハブ構造におけるカバーの底面図である。It is the bottom view of the cover in the hub structure of the 2nd Example of the same as above. 図２１のＩ−Ｉ線断面図である。FIG. 21 is a cross-sectional view taken along the line II of FIG.

本発明は帯状材又は紐の一端部を強固に固定し、帯状材又は紐の一端部がハブ本体から容易に外れることがないハブ構造を提供するという目的を達成するために、帯状材又は紐の一端部を固定して、前記帯状材又は前記紐を巻き取るハブ構造において、前記帯状材又は前記紐を巻き取る外周面に前記帯状材又は前記紐の一端部を固定のためのする開口を有したハブ本体と前記ハブ本体の前記開口を開閉可能に閉じる円弧状のカバーとを備え、(１)前記カバーは、巻回方向両端側に各々分かれて設けられた第１フック及び第２フックと、前記カバーの内面に設けられた第１係止歯を有し、(２)前記ハブ本体は、外周面に前記開口を設けて筒状に形成されたアウターリング領域部と、筒状に形成されて前記アウターリング領域部の内側に設けられたインナーリング領域部と、前記アウターリング領域部の前記開口に前記第１フックと係脱可能に設けられた第３フック及び前記第２フックと係脱可能に設けられた第４フックと、前記帯状材又は前記紐の一端部を、前記開口を閉じた前記カバーの前記第１係止歯と共に挟持固定するための、前記インナーリング領域部に設けられた第２係止歯を有する、ようにしたことにより実現した。 In order to achieve the object of firmly fixing one end of the strip or string and providing a hub structure in which one end of the strip or string does not easily come off from the hub body, the present invention provides the strip or string. In a hub structure in which one end of the band or the string is wound, an opening for fixing the one end of the band or the string is provided on the outer peripheral surface for winding the band or the string. The hub body is provided with an arc-shaped cover that opens and closes the opening of the hub body so as to be openable and closable. (1) The cover is provided separately on both ends in the winding direction, and the first hook and the second hook are provided separately. The hub body has a first locking tooth provided on the inner surface of the cover, and (2) the hub body has a tubular outer ring region portion formed with the opening on the outer peripheral surface and a tubular shape. An inner ring region portion formed and provided inside the outer ring region portion, and a third hook and a second hook detachably provided in the opening of the outer ring region portion with the first hook. In the inner ring region portion for sandwiching and fixing the disengageable fourth hook and one end of the band-shaped member or the string together with the first locking tooth of the cover with the opening closed. It was realized by having a second locking tooth provided.

以下、本発明の実施形態によるハブ構造を紙葉搬送機械に適用した場合を一例として挙げ、図面を参照しながら好適な実施例について詳細に説明する。なお、以下の説明では、上下や左右等の方向を示す表現は、絶対的なものではなく、本発明のハブ構造の各部が描かれている姿勢である場合に適切であるが、その姿勢が変化した場合には姿勢の変化に応じて変更して解釈されるべきものである。また、実施形態の説明の全体を通して同じ要素には同じ番号を付している。 Hereinafter, a case where the hub structure according to the embodiment of the present invention is applied to a paper leaf transport machine will be taken as an example, and a suitable embodiment will be described in detail with reference to the drawings. In the following description, the expressions indicating the directions such as up and down and left and right are not absolute, and are appropriate when each part of the hub structure of the present invention is drawn, but the posture is appropriate. If it changes, it should be changed and interpreted according to the change in posture. Also, the same elements are numbered the same throughout the description of the embodiment.

図１は本発明に係るハブ構造を使用した紙葉搬送機械１０１の一例を模式的に示す図であり、図２は図１に示した紙葉搬送機械の軸部の一構成例を示す斜視図である。 FIG. 1 is a diagram schematically showing an example of a paper leaf transport machine 101 using the hub structure according to the present invention, and FIG. 2 is a perspective view showing a configuration example of a shaft portion of the paper leaf transport machine shown in FIG. It is a figure.

図１において、紙葉搬送機械１０１は、第１巻回部１０２と、第２巻回部１０３と、中央巻回部１０４と、第１ベルト１０５と、第２ベルト１０６と、複数個のガイドローラ１０７、１０７…等を備えている。なお、第１ベルト１０５及び第２ベルト１０６は帯状をしたベルト、すなわち帯状材である。また、第１巻回部１０２、第２巻回部１０３、中央巻回部１０４は、図２に示すように、正逆両方向に回転される駆動軸１０８と、その駆動軸１０８と一体に回転するリミッター１０９と、リミッター１０９と一体に回転される本発明に係るハブ１０等で各々構成されている。 In FIG. 1, the paper leaf transport machine 101 includes a first winding portion 102, a second winding portion 103, a central winding portion 104, a first belt 105, a second belt 106, and a plurality of guides. It includes rollers 107, 107, and the like. The first belt 105 and the second belt 106 are belt-shaped belts, that is, strip-shaped materials. Further, as shown in FIG. 2, the first winding portion 102, the second winding portion 103, and the central winding portion 104 rotate integrally with the drive shaft 108 that is rotated in both forward and reverse directions and the drive shaft 108. It is composed of a limiter 109 and a hub 10 according to the present invention that are rotated integrally with the limiter 109.

その紙葉搬送機械１０１において、第１ベルト１０５の一端部側と第２ベルト１０６の一端部側は、それぞれ中央巻回部１０４のハブ１０に固定されており、その第１ベルト１０５の一端側と第２ベルト１０６の一端側は互いに重ね合わされて、中央巻回部１０４におけるハブ１０の外周面上に巻回されている。一方、第１ベルト１０５の他端部側は、ガイドローラ１０７、１０７…を介して第１巻回部１０２上に導かれ、第１巻回部１０２のハブ１０に他端側を固定した後、その第１巻回部１０２におけるハブ１０の外周面上に巻回されている。また、第２ベルト１０６の他端部側は、ガイドローラ１０７、１０７…を介して第２巻回部１０３に導かれ、その他端部を第２巻回部１０３のハブ１０に他端側を固定した後、その第２巻回部１０３におけるハブ１０の外周面上に巻回されている。 In the paper leaf transport machine 101, one end side of the first belt 105 and one end side of the second belt 106 are fixed to the hub 10 of the central winding portion 104, respectively, and one end side of the first belt 105. And one end side of the second belt 106 are overlapped with each other and wound on the outer peripheral surface of the hub 10 in the central winding portion 104. On the other hand, the other end side of the first belt 105 is guided onto the first winding portion 102 via the guide rollers 107, 107, etc., and after fixing the other end side to the hub 10 of the first winding portion 102. , It is wound on the outer peripheral surface of the hub 10 in the first winding portion 102. Further, the other end side of the second belt 106 is guided to the second winding portion 103 via the guide rollers 107, 107 ..., And the other end is connected to the hub 10 of the second winding portion 103 on the other end side. After being fixed, it is wound on the outer peripheral surface of the hub 10 in the second winding portion 103.

そして、その紙葉搬送機械１０１では、中央巻回部１０４の回転方向と反対の方向に、第１巻回部１０２及び第２巻回部１０３がそれぞれ回転し、中央巻回部１０４が第１ベルト１０５と第２ベルト１０６を同時に巻き取るのに連動して、第１巻回部１０２と第２巻回部１０３からそれぞれ第１ベルト１０５及び第２ベルト１０６を繰り出す。反対に、中央巻回部１０４が第１ベルト１０５及び第２ベルト１０６を繰り出すのに連動して、第１巻回部１０２及び第２巻回部１０３がそれぞれ第１ベルト１０５及び第２ベルト１０６を巻き取るようになっている。また、第１ベルト１０５と第２ベルト１０６が互いに並行して走る部分に、例えば紙幣や郵便葉書、カード等の紙葉類を出し入れするための投入・受取口１０８を設けている。 Then, in the paper leaf transport machine 101, the first winding portion 102 and the second winding portion 103 rotate in the direction opposite to the rotation direction of the central winding portion 104, and the central winding portion 104 becomes the first. In conjunction with winding the belt 105 and the second belt 106 at the same time, the first belt 105 and the second belt 106 are unwound from the first winding portion 102 and the second winding portion 103, respectively. On the contrary, in conjunction with the central winding portion 104 feeding out the first belt 105 and the second belt 106, the first winding portion 102 and the second winding portion 103 move the first belt 105 and the second belt 106, respectively. It is designed to wind up. Further, in the portion where the first belt 105 and the second belt 106 run in parallel with each other, a slot 108 for inserting and removing paper leaves such as banknotes, postcards, and cards is provided.

このように構成された紙葉搬送機械１０１では、紙幣や郵便葉書、カード等を投入・受取口１１０に配置し、図１中の矢印ａ方向に中央巻回部１０４と第１巻回部１０２と第２巻回部１０３を各々回転させると、投入・受取口１０８に配置された紙幣や郵便葉書、カード等を第１ベルト１０５と第２ベルト１０６の間に挟んで所定の位置まで搬送することができる。また、所定の位置での処理が終了したら、図１中の矢印ｂ方向に中央巻回部１０４と第１巻回部１０２と第２巻回部１０３を各々回転させると、紙幣や郵便葉書、カード等を第１ベルト１０５と第２ベルト１０６の間に挟んで所定の位置から投入・受取口１１０の位置まで搬送して戻すことができる。 In the paper leaf transport machine 101 configured in this way, banknotes, postcards, cards, etc. are placed in the insertion / reception port 110, and the central winding section 104 and the first winding section 102 are arranged in the direction of arrow a in FIG. When the second winding unit 103 is rotated, the banknotes, postcards, cards, etc. arranged in the insertion / reception port 108 are sandwiched between the first belt 105 and the second belt 106 and conveyed to a predetermined position. be able to. Further, when the processing at the predetermined position is completed, the central winding portion 104, the first winding portion 102, and the second winding portion 103 are rotated in the direction of the arrow b in FIG. A card or the like can be sandwiched between the first belt 105 and the second belt 106 and transported back from a predetermined position to the position of the insertion / reception port 110.

このような紙葉搬送機械１０１におけるハブ１０では、第１ベルト１０５及び第２ベルト１０６等の一端側が強固に固定されていないと引き出し終端時に、第１ベルト１０５及び第２ベルト１０６等の一端がハブ１０から外れてしまう恐れがある。そこで、本発明に係るハブ１０では、第１ベルト１０５及び第２ベルト１０６等の一端を強固に固定する構造を、以下に述べるようにして解決している。そのハブ１０の構造を図３〜図１３、及び図１６〜図２４に示す。そのハブ１０の構造を以下に説明する。なお、以下の説明では、第１ベルト１０５及び第２ベルト１０６等を総称して帯状材１００として説明する。また、ここでの帯状材１００は、ベルトに限らず、フィルムやテープ、あるいは紐(ワイヤー)等であっても良いものである。 In the hub 10 of such a paper leaf transport machine 101, if one end side of the first belt 105, the second belt 106, etc. is not firmly fixed, one end of the first belt 105, the second belt 106, etc. There is a risk that it will come off the hub 10. Therefore, in the hub 10 according to the present invention, a structure for firmly fixing one end of the first belt 105, the second belt 106, and the like is solved as described below. The structure of the hub 10 is shown in FIGS. 3 to 13 and 16 to 24. The structure of the hub 10 will be described below. In the following description, the first belt 105, the second belt 106, and the like will be collectively referred to as the strip-shaped material 100. Further, the strip-shaped material 100 here is not limited to a belt, but may be a film, a tape, a string (wire), or the like.

図３〜図１３は本発明に係るハブ構造の第１実施例を示すものであり、図３はそのハブ１０の正面図、図４はハブ本体１１からカバー１２を取り外した状態で示すハブ１０の斜視図である。 3 to 13 show a first embodiment of the hub structure according to the present invention, FIG. 3 is a front view of the hub 10, and FIG. 4 is a hub 10 showing a state in which the cover 12 is removed from the hub main body 11. It is a perspective view of.

図３、図４において、ハブ１０は、外周面に帯状材１００の一端部１０aを差し込むための開口１３を有するハブ本体１１と、ハブ本体１１の開口１３を開閉可能に閉じるカバー１２とでなる。ハブ本体１１とカバー１２は、それぞれ共に合成樹脂材製であり、例えば射出成形により所定の形状に成形されている。 In FIGS. 3 and 4, the hub 10 includes a hub main body 11 having an opening 13 for inserting one end portion 10a of the strip-shaped member 100 on the outer peripheral surface, and a cover 12 that opens and closes the opening 13 of the hub main body 11 so as to be openable and closable. .. The hub body 11 and the cover 12 are both made of a synthetic resin material, and are formed into a predetermined shape by, for example, injection molding.

ハブ本体１１は、図６〜図９にも示している。したがって、図３、図４に示すハブ本体１１の構成を、必要に応じて図６〜図９を加えて説明すると、ハブ本体１１は、開口１３を設けて筒状に形成されたアウターリング領域部２１と、同じく筒状に形成されてアウターリング領域部２１の内側に設けられたインナーリング領域部３１を有して、図４、図５、図７、図８に示しているように二重の筒構造になっている。また、アウターリング領域部２１とインナーリング領域部３１との間は、放射状に配設された複数本(本実施例では３本)の支持壁１４で連結されており、その支持壁１４が設けられている部分以外の箇所は空間１５になっている。 The hub body 11 is also shown in FIGS. 6 to 9. Therefore, when the configuration of the hub main body 11 shown in FIGS. 3 and 4 will be described with reference to FIGS. 6 to 9 as necessary, the hub main body 11 is provided with an opening 13 and has an outer ring region formed in a tubular shape. It has a portion 21 and an inner ring region portion 31 which is also formed in a tubular shape and is provided inside the outer ring region portion 21, as shown in FIGS. 4, 5, 7, and 8. It has a heavy tubular structure. Further, the outer ring region portion 21 and the inner ring region portion 31 are connected by a plurality of (three in this embodiment) support walls 14 arranged radially, and the support walls 14 are provided. The space 15 is formed in the portion other than the portion where the space is formed.

図３、図４、図６、図９に示すように、アウターリング領域部２１には、そのアウターリング領域部２１の外周面２１ａに巻回される帯状材１００が、巻回時にハブ本体１１の軸Ｏと沿う方向(左右の側面方向)へずれるのを規制する壁としての端板部２２が設けられている。その端板部２２は、アウターリング領域部２１の両側面に設けられており、またアウターリング領域部２１の外径よりも大きい外径をして鍔状に形成されている。 As shown in FIGS. 3, 4, 6, and 9, the outer ring region portion 21 is provided with a strip-shaped member 100 wound around the outer peripheral surface 21a of the outer ring region portion 21 at the time of winding. An end plate portion 22 is provided as a wall for restricting deviation in the direction along the axis O (left and right side surface directions). The end plate portions 22 are provided on both side surfaces of the outer ring region portion 21, and are formed in a brim shape with an outer diameter larger than the outer diameter of the outer ring region portion 21.

また、図４、図６に示すように、アウターリング領域部２１の外周面２１ａには、支持壁１４と支持壁１４との間に位置する部分を左右の端板部２２、２２間に亘って矩形状に切り欠いて、上記開口１３を設けている。さらに、図５、図８に示すように、開口１３の巻回方向両側における端縁部１３ａ、１３ｂは、それぞれ開口１３の内側へ向かって略水平に折り曲げられており、その端縁部１３ａ、１３ｂはカバー１２を着脱可能に取り付けるフックとして機能する役目をする。したがって、以後の説明では、端縁部１３ａを第３フック１３ａと呼び、端縁部１３ｂを第４フック１３ｂと呼ぶことにする。 Further, as shown in FIGS. 4 and 6, on the outer peripheral surface 21a of the outer ring region portion 21, a portion located between the support wall 14 and the support wall 14 extends between the left and right end plate portions 22, 22. The opening 13 is provided by cutting out in a rectangular shape. Further, as shown in FIGS. 5 and 8, the edge portions 13a and 13b on both sides of the winding direction of the opening 13 are bent substantially horizontally toward the inside of the opening 13, respectively, and the edge portions 13a, The 13b serves as a hook for attaching and detaching the cover 12. Therefore, in the following description, the edge portion 13a will be referred to as a third hook 13a, and the edge portion 13b will be referred to as a fourth hook 13b.

図４〜図９に示すように、インナーリング領域部３１には、開口１３と対応して、周回方向中央部分に、ハブ本体１１の軸Ｏに沿って一端側から他端側まで連続してスリット３２が形成されている。そのスリット３２は、インナーリング領域部３１の内周に圧入される図１に示したリミッター１０９又は駆動軸との寸法誤差を吸収する役目をする。すなわち、リミッター１０９又は駆動軸の外径がインナーリング領域部３１の内径よりも大きいとき、リミッター１０９又は駆動軸がインナーリング領域部３１の内径を押し広げて、インナーリング領域部３１内に圧入できるようになっている。 As shown in FIGS. 4 to 9, the inner ring region portion 31 is continuous from one end side to the other end side along the axis O of the hub main body 11 in the central portion in the circumferential direction corresponding to the opening 13. The slit 32 is formed. The slit 32 serves to absorb a dimensional error with the limiter 109 or the drive shaft shown in FIG. 1 which is press-fitted into the inner circumference of the inner ring region portion 31. That is, when the outer diameter of the limiter 109 or the drive shaft is larger than the inner diameter of the inner ring region portion 31, the limiter 109 or the drive shaft can expand the inner diameter of the inner ring region portion 31 and press-fit it into the inner ring region portion 31. It has become like.

また、図４〜図８に示すように、インナーリング領域部３１の外周面３１ａには、開口１３と対応し、かつスリット３２を境として第３フック１３ａ側に偏った位置に、第２係止歯３３が設けられている。第２係止歯３３は、図５及び図７、図８に各歯の断面を示しているように、各歯は先端側が尖った側面視で鋭角な突起としてなり、図６に示すようにハブ本体１１の軸Ｏに沿ってインナーリング領域部３１の一端側から他端側まで連続してライン状に形成されている。その第２係止歯３３は、少なくとも２歯以上形成するのが好ましく、また突起の向きも帯状材１００が引き出される方向(図５中の矢印ｆ１方向)と反対の方向(図５中の矢印ｆ２方向)へ若干傾いて形成するのが好ましい。このように、突起の向きを帯状材１００が引き出される方向ｆ１と反対の方向ｆ２に傾けると、帯状材１００が引き出し方向へ力を受けたときに、帯状材１００が鍵爪に喰い込む形となり、帯状材１００の一端部１００ａがより強固に保持され、ハブ１０から帯状材１００が外れるのを防ぐ役目をする。 Further, as shown in FIGS. 4 to 8, the outer peripheral surface 31a of the inner ring region portion 31 corresponds to the opening 13 and has a second engagement at a position biased toward the third hook 13a with the slit 32 as a boundary. A stop 33 is provided. As shown in FIGS. 5, 7, and 8, the second locking tooth 33 has an acute-angled protrusion with a pointed tip on the tip side, as shown in FIG. Along the axis O of the hub body 11, the inner ring region portion 31 is continuously formed in a line shape from one end side to the other end side. The second locking teeth 33 are preferably formed at least two or more teeth, and the direction of the protrusions is opposite to the direction in which the band-shaped member 100 is pulled out (arrow f1 in FIG. 5) (arrow in FIG. 5). It is preferable to form the teeth slightly inclined in the f2 direction). In this way, when the direction of the protrusion is tilted in the direction f2 opposite to the direction f1 in which the band-shaped material 100 is pulled out, the band-shaped material 100 bites into the key claw when the band-shaped material 100 receives a force in the pulling direction. The one end portion 100a of the strip-shaped member 100 is held more firmly, and serves to prevent the strip-shaped member 100 from coming off from the hub 10.

カバー１２は、図１０〜図１３にも示している。したがって、図３、図４に示すカバー１２の構成を、必要に応じて図１０〜図１３を加えて説明する。カバー１２は、ハブ本体１１の開口１３を略密閉して閉じることが可能な大きさで、図１０及び図１２で示すように開口１３と略同じ形状をした平面視長四角をしてなる矩形状に形成されている。また、カバー１２の外表面１２ａは、ハブ本体１１におけるアウターリング領域部２１の外周面２１ａの曲面に倣うようにして外周面２１aと略同じ曲率をした曲面で形成されており、その断面形状は図１３に示すように円弧状に形成されている。 The cover 12 is also shown in FIGS. 10 to 13. Therefore, the configuration of the cover 12 shown in FIGS. 3 and 4 will be described with reference to FIGS. 10 to 13 as necessary. The cover 12 has a size that allows the opening 13 of the hub body 11 to be substantially sealed and closed, and has a rectangular shape having a substantially same shape as the opening 13 in a plan view as shown in FIGS. 10 and 12. It is formed in a shape. Further, the outer surface 12a of the cover 12 is formed by a curved surface having substantially the same curvature as the outer peripheral surface 21a so as to follow the curved surface of the outer peripheral surface 21a of the outer ring region portion 21 of the hub main body 11, and the cross-sectional shape thereof is As shown in FIG. 13, it is formed in an arc shape.

カバー１２の内面１２ｂには、開口１３の第３フック１３ａと対応する端縁部に内面１２ｂから略直角に下側へ向かって延びる第１フック１２ｃが設けられ、開口１３の第４フック１３ｂと対応する端縁部に内面１２ｂから略直角に下側へ向かって延びる第２フック１２ｄが設けられている。すなわち、第１フック１２ｃと第２フック１２ｄは開口１３の巻回方向両端側に分かれて各々設けられている。また、第１フック１２ｃと連続して第１係止歯１２ｅが設けられている。 The inner surface 12b of the cover 12 is provided with a first hook 12c extending downward at a substantially right angle from the inner surface 12b at an end edge corresponding to the third hook 13a of the opening 13, and is provided with the fourth hook 13b of the opening 13. A second hook 12d extending downward from the inner surface 12b at a substantially right angle is provided at the corresponding end edge portion. That is, the first hook 12c and the second hook 12d are provided separately on both ends in the winding direction of the opening 13. Further, a first locking tooth 12e is provided continuously with the first hook 12c.

第１フック１２ｃは、図５及び図１３に示すように、第３フック１３ａ側に向けて開口する断面コ字状部４０を有する。断面コ字状部４０内には、図５に示すように第３フック１３ａが挿入されて、第３フック１３ａと着脱自在に係合可能になっている。また、図１２に示すように第１フック１２ｃの軸方向(左右方向)の長さＬ１は、カバー１２の軸方向の長さＬ０の長さと同じか、又は長さＬ０の約８０％の長さにすることが好ましい。 As shown in FIGS. 5 and 13, the first hook 12c has a U-shaped cross section 40 that opens toward the third hook 13a side. As shown in FIG. 5, a third hook 13a is inserted into the U-shaped cross section 40 so that the third hook 13a can be detachably engaged with the third hook 13a. Further, as shown in FIG. 12, the axial length (left-right direction) length L1 of the first hook 12c is the same as the axial length L0 of the cover 12, or is about 80% of the length L0. It is preferable to make it.

第２フック１２ｄは、図５及び図１３に示すように、第４フック１３ｂ側に向けて開口する断面Ｌ字状部４１を有する。断面Ｌ字状部４１は、図５に示すように第４フック１３ｂの下面に鍵状に係合されるようになっている。また、図１２に示すように第２フック１２ｃの軸方向(左右方向)の略中間部分には、第４フック１３ｂと第２フック１２ｄとの係合を外す、例えばマイナスドライバーの先端等の治具を挿入するためのカバー取り外し口４２を設けている。したがって、第２フック１２ｄはカバー取り外し口４２を設けたことにより、軸方向(左右方向)に２分割されている。なお、第２フック１２ｄの軸方向(左右方向)の長さＬ２、すなわち(Ｌ２＋Ｌ２)は、カバー１２の軸方向の長さＬ０の６０％以上の長さにすることが好ましい。 As shown in FIGS. 5 and 13, the second hook 12d has an L-shaped portion 41 having an L-shaped cross section that opens toward the fourth hook 13b side. As shown in FIG. 5, the L-shaped cross section 41 is engaged with the lower surface of the fourth hook 13b in a key shape. Further, as shown in FIG. 12, the engagement between the fourth hook 13b and the second hook 12d is disengaged at the substantially intermediate portion of the second hook 12c in the axial direction (left-right direction), for example, the tip of a flat-blade screwdriver is cured. A cover removal port 42 for inserting the tool is provided. Therefore, the second hook 12d is divided into two in the axial direction (left-right direction) by providing the cover removal port 42. The length L2 of the second hook 12d in the axial direction (left-right direction), that is, (L2 + L2) is preferably 60% or more of the axial length L0 of the cover 12.

第１係止歯１２ｅは、図５及び図１２、図１３に示すように、第１フック１２cと連続して設けられている。第１係止歯１２ｅは、カバー１２が開口１３を閉じたとき、第２係止歯３３と対向し、第２係止歯３３と共に帯状材１００を強く挟んで、第２係止歯３３との間で帯状材１００を固定できるようになっている。第１係止歯１２ｅは、図５及び図１３に各歯の断面を示しているように、各歯は先端側が尖った側面視で鋭角な突起でなり、図１２に示すよう第１フック１２ｃと略同じ幅に亘って連続してライン状に形成されている。その第１係止歯１２ｅの突起は、少なくとも２山以上設け、第２係止歯３３の突起は、少なくとも１歯(１山)以上形成するのが好ましい。また、逆に第１係止歯１２ｅの突起を少なくとも１歯(１山)以上設け、第２係止歯３３の突起を少なくとも２歯(２山)以上形成するようにしてもよい。なお、いずれの場合も第１係止歯１２ｅと第２係止歯３３とは互いに噛み合うようにして形成するのが好ましい。 As shown in FIGS. 5, 12, and 13, the first locking tooth 12e is provided continuously with the first hook 12c. When the cover 12 closes the opening 13, the first locking tooth 12e faces the second locking tooth 33, strongly sandwiches the strip-shaped member 100 together with the second locking tooth 33, and forms the second locking tooth 33. The strip-shaped material 100 can be fixed between the two. As shown in FIGS. 5 and 13, each of the first locking teeth 12e is an acute-angled protrusion with a pointed tip side in a side view, and as shown in FIG. 12, the first hook 12c It is continuously formed in a line shape over substantially the same width as. It is preferable that the protrusions of the first locking tooth 12e are provided at least two ridges or more, and the protrusions of the second locking tooth 33 are formed at least one tooth (one ridge) or more. On the contrary, the protrusions of the first locking tooth 12e may be provided at least one tooth (one mountain) or more, and the protrusions of the second locking tooth 33 may be formed at least two teeth (two peaks). In any case, it is preferable that the first locking tooth 12e and the second locking tooth 33 are formed so as to mesh with each other.

次に、このように構成されたハブ１０に、帯状材１００の一端部１００ａを固定して、帯状材１００をハブ１０の外周面に巻回して使用する手順を説明する。 Next, a procedure will be described in which one end 100a of the strip-shaped member 100 is fixed to the hub 10 configured in this way, and the strip-shaped member 100 is wound around the outer peripheral surface of the hub 10 for use.

まず、図４に示すように、カバー１２をハブ本体１１から取り外した状態において、開口１３から帯状材１００の一端部１００ａを、その一端部１００ａが第２係止歯３３を越える位置までし込む。 First, as shown in FIG. 4, in a state where the cover 12 is removed from the hub main body 11, one end portion 100a of the strip-shaped member 100 is inserted through the opening 13 to a position where the one end portion 100a exceeds the second locking tooth 33. ..

続いて、カバー１２を持ち、第１フック１２ｃがハブ本体１１の第３フック１３ａの断面コ字状部４０内に係合するようにして、その第１フック１２ｃを帯状材１００と共にハブ本体１１の第３フック１３ａの断面コ字状部４０内に押し付けて、第１フック１２ｃ側を第３フック１３ａに対して係合位置決めをする。次いで、カバー１２の第２フック１２ｄ側をハブ本体１１側に押し付ける。カバー１２をハブ本体１１側に強く押し付けると、カバー１２が弾性変形しながらハブ本体１１側に移動し、第２フック１２ｄが第４フック１３ｂの断面Ｌ字状部４１の下面まで移動し、第２フック１２ｄの鍵爪が下面に係合される。 Subsequently, the cover 12 is held so that the first hook 12c engages in the cross-sectional U-shaped portion 40 of the third hook 13a of the hub body 11, and the first hook 12c is engaged with the band-shaped material 100 together with the hub body 11. The third hook 13a is pressed into the U-shaped cross-section portion 40 of the above, and the first hook 12c side is engaged and positioned with respect to the third hook 13a. Next, the second hook 12d side of the cover 12 is pressed against the hub body 11 side. When the cover 12 is strongly pressed against the hub body 11, the cover 12 elastically deforms and moves toward the hub body 11, and the second hook 12d moves to the lower surface of the L-shaped cross section 41 of the fourth hook 13b. The key claw of the 2 hook 12d is engaged with the lower surface.

これにより、カバー１２は、第１フック１２ｃと第３フック１３ａとの係合及び第２フック１２ｂと第４フック１３ｂとの係合により、ハブ本体１１に開口１３を閉じて取り付けられる。また、カバー１２が閉じられた状態では、開口１３内に差し込まれた帯状材１００の一端部１００ａ側は、第３フック１３ａと第１フック１２ｃとで強固に挟持固定されるとともに、第１係止歯１２ｅと第２係止歯３３とで強固に挟持固定される。 As a result, the cover 12 is attached to the hub body 11 with the opening 13 closed by the engagement between the first hook 12c and the third hook 13a and the engagement between the second hook 12b and the fourth hook 13b. Further, in the state where the cover 12 is closed, the one end portion 100a side of the strip-shaped member 100 inserted into the opening 13 is firmly sandwiched and fixed by the third hook 13a and the first hook 12c, and the first engagement is performed. It is firmly sandwiched and fixed by the stop tooth 12e and the second locking tooth 33.

また、カバー１２がハブ本体１１に取り付けられたら、ハブ１０を図２及び図５中の右方向に回転させ、帯状材１００をアウターリング領域部２１の外周面２１ａ上に巻回し、これを駆動軸又はリミッター１０９にセットすると紙葉搬送機械１０１で使用することができる。 When the cover 12 is attached to the hub body 11, the hub 10 is rotated to the right in FIGS. 2 and 5, and the strip-shaped member 100 is wound on the outer peripheral surface 21a of the outer ring region 21 to drive the strip-shaped member 100. When set on the shaft or the limiter 109, it can be used in the paper leaf transport machine 101.

反対に、ハブ１０から帯状材１００を取り外す場合は、カバー取り外し口４２から、カバー１２とハブ本体１１との間にマイナスドライバーの先端等の治具を挿入し、カバー１２にハブ本体１１から引き離す力を与える。すると、第２フック１２ｄと第４フック１３ｂとの係合が強制的に外され、カバー１２をハブ本体１１から取り外すことができる。その後、帯状材１００を外側、すなわち図５の方向ｆ１へ引くと、一端部１０１ａを開口１３から抜いて取り外すことができる。 On the contrary, when removing the strip 100 from the hub 10, a jig such as the tip of a flat-blade screwdriver is inserted between the cover 12 and the hub body 11 from the cover removal port 42, and the cover 12 is pulled away from the hub body 11. Give power. Then, the engagement between the second hook 12d and the fourth hook 13b is forcibly disengaged, and the cover 12 can be removed from the hub body 11. After that, when the strip 100 is pulled outward, that is, in the direction f1 of FIG. 5, one end 101a can be pulled out from the opening 13 and removed.

したがって、このように構成されたハブ１０を使用した紙葉搬送機械１０１では、ハブ１０において、帯状材１００の一端部１０１ａ側は、ハブ本体１１内でカバー１２の第１係止歯１２ｅとハブ本体１１の第２係止歯３３で挟持固定されるとともに、第１フック１２ｃと第３フック１３ａとの間の挟持によっても固定されるので、帯状材１００に対するハブ１０の挟持固定がより強固になる。これにより、仮に終端時に帯状材１００に強い引っ張り力が加わっても、帯状材１００がハブ１０から簡単に外れてしまうことがない。また、ハブ本体１１からカバー１２を外し、帯状材１００の一端部１００ａを開口１３に差し込んだ後、カバー１２を再び閉じれば取り付けることができるので、取り付け作業も簡単になる。さらに、カバー１２をハブ本体１１に取り付けるだけで、帯状材１００の一端部１０１ａをハブ１０に強固に固定することができ、接着剤や保持部材を使用する必要がないので、製品コストを下げることができる。 Therefore, in the paper leaf transport machine 101 using the hub 10 configured in this way, in the hub 10, one end portion 101a side of the strip-shaped member 100 is the first locking tooth 12e of the cover 12 and the hub in the hub body 11. Since the hub 10 is pinched and fixed by the second locking teeth 33 of the main body 11 and is also pinched and fixed between the first hook 12c and the third hook 13a, the hub 10 is more firmly pinched and fixed to the strip-shaped member 100. Become. As a result, even if a strong tensile force is applied to the strip-shaped member 100 at the time of termination, the strip-shaped member 100 does not easily come off from the hub 10. Further, since the cover 12 can be removed from the hub main body 11, the one end portion 100a of the strip-shaped member 100 is inserted into the opening 13, and then the cover 12 is closed again, the cover 12 can be attached, so that the attachment work becomes easy. Further, by simply attaching the cover 12 to the hub body 11, one end 101a of the strip 100 can be firmly fixed to the hub 10, and there is no need to use an adhesive or a holding member, so that the product cost can be reduced. Can be done.

図１４及び図１５は、帯状材１００の一端部１００ａをハブ本体１１の開口から内部に差し込んでカバー１２を閉じ、カバー１２だけで帯状材１００の一端部１００ａを押さえてなるハブ(「試料Ａ」と言う)を使用した場合と、本発明の第１実施例に係るハブ１０、すなわち第１係止歯１２eと第２係止歯３３とを設けて、ハブ本体１１の開口１３から帯状材１００の一部１００ａを内部に差し込んでカバー１２を閉じ、カバー１２及び第１係止歯１２ｅと第２係止歯３３とで帯状材１００の一端部１００ａを挟持固定したハブ１０(「試料Ｂ」と言う)を使用した場合とで、その接合強度を検証した結果である。なお、試料Ｂの第１フック１２ｃの軸方向の長さＬ１はカバー１２の軸方向の長さＬ０の８０％、第２フック１２ｄの軸方向の長さＬ２はカバー１２の軸方向の長さＬ０の６０％で、第１フック１２cはカバー１２の全幅の略中央に配置し、第２フッ１２ｄ側は、中央にカバー取り外し口４２を設けて二分割された形状としている。 14 and 15 show a hub (“Sample A”) in which one end 100a of the strip 100 is inserted into the inside through the opening of the hub body 11 to close the cover 12, and the cover 12 alone holds the one end 100a of the strip 100. The hub 10 according to the first embodiment of the present invention, that is, the first locking tooth 12e and the second locking tooth 33 are provided, and a strip-shaped material is provided from the opening 13 of the hub main body 11. A hub 10 (“Sample B”) in which a part 100a of 100 is inserted into the inside to close the cover 12, and one end 100a of the strip 100 is sandwiched and fixed between the cover 12 and the first locking tooth 12e and the second locking tooth 33. This is the result of verifying the joint strength when using). The axial length L1 of the first hook 12c of the sample B is 80% of the axial length L0 of the cover 12, and the axial length L2 of the second hook 12d is the axial length of the cover 12. At 60% of L0, the first hook 12c is arranged substantially in the center of the entire width of the cover 12, and the second hook 12d side is provided with a cover removal port 42 in the center to form a shape divided into two.

検証では、厚みｔが０．０３７ミリのフィルムＣと、厚みｔが０．０７４ミリのフィルムＤとを使用して、また図５の矢印ｆ１方向(左方向)と矢印ｆ２方向(上方向)と矢印ｆ３方向(右方向)にそれぞれ引っ張った場合の接合強度を検証した。 In the verification, a film C having a thickness t of 0.037 mm and a film D having a thickness t of 0.074 mm were used, and the arrow f1 direction (left direction) and the arrow f2 direction (upward direction) in FIG. 5 were used. The joint strength when pulled in the direction of arrow f3 (right direction) was verified.

図１４は、その試料Ａ(従来技術品)、試料Ｂ(本発明品)の接合強度結果表であり、図１５は試料Ａに対する試料Ｂの接合強度結果である。図１５の表から判るように、本発明品に係る試料Ｂを使用してフィルムＣを左方向に引っ張った場合では従来技術品である試料Ａを使用して引っ張った場合に比べて約１０．７３倍、上方向に引っ張った場合では約５．４５倍、右方向に引っ張った場合では約１９．４３倍、それぞれ接合強度が向上している。また、試料Ｂを使用してフィルムＤを左方向に引っ張った場合では試料Ａを使用して引っ張った場合に比べて約３．８９倍、上方向に引っ張った場合では約４．７２倍、右方向に引っ張った場合では約６．７０倍、それぞれ接合強度が向上している。 FIG. 14 is a bonding strength result table of the sample A (conventional product) and sample B (the product of the present invention), and FIG. 15 is a bonding strength result of the sample B with respect to the sample A. As can be seen from the table of FIG. 15, when the film C is pulled to the left using the sample B according to the product of the present invention, it is about 10. The joint strength is improved by 73 times, about 5.45 times when pulled upward, and about 19.43 times when pulled upward. Further, when the film D is pulled to the left using the sample B, it is about 3.89 times as much as when it is pulled using the sample A, and when it is pulled upward, it is about 4.72 times to the right. When pulled in the direction, the joint strength is improved by about 6.70 times.

図１６〜図２４は本発明に係るハブ構造の第２実施例を示すものであり、図１６はそのハブ１０の正面図、図１７は図１６のＦ−Ｆ線拡大断面図である。第２実施例は、第１実施例におけるカバー１２側の第１係止歯１２ｅと第１フック１２ｃとを一体化し、第２実施例におけるハブ本体１１側の第２係止歯３３と第３フック１３ａとを一体化したものであり、他の構成は図３〜図１３と同一であるから、同一の構成部分は同一符号を付して、重複説明を省略する。 16 to 24 show a second embodiment of the hub structure according to the present invention, FIG. 16 is a front view of the hub 10, and FIG. 17 is an enlarged sectional view taken along line FF of FIG. In the second embodiment, the first locking teeth 12e on the cover 12 side and the first hook 12c in the first embodiment are integrated, and the second locking teeth 33 and the third on the hub body 11 side in the second embodiment are integrated. Since the hook 13a is integrated and the other configurations are the same as those in FIGS. 3 to 13, the same components are designated by the same reference numerals and duplicate description will be omitted.

第２実施例におけるカバー１２は、内面１２ｂに、開口１３の第３フック１３ａと対応する端縁部に、内面１２ｂから略直角に下側へ向かって延びる第１フック兼第１係止歯１２ｆが設けられ、開口１３の第４フック１３ｂと対応する端縁部に、内面１２ｂから略直角に下側へ向かって延びる第２フック１２ｄが設けられている。 The cover 12 in the second embodiment has a first hook and a first locking tooth 12f extending downward from the inner surface 12b substantially at a right angle to the inner surface 12b and the edge portion corresponding to the third hook 13a of the opening 13. Is provided, and a second hook 12d extending downward from the inner surface 12b at a substantially right angle is provided at an end edge portion corresponding to the fourth hook 13b of the opening 13.

第１フック兼第１係止歯１２ｆは、第１実施例と同様に、図２４に示すように、その軸方向(左右方向)の長さＬ１はカバー１２の軸方向の長さＬ０の長さと同じか、又は約８０％の長さにすることが好ましい。また、第１実施例の第１係止歯１２ｅに相当する歯１１２ｇが、第１フック兼第１係止歯１２ｆの側面に設けられている。歯１１２ｇは、カバー１２が開口１３を閉じたとき、後述する第３フック兼第２係止歯１３ｃの歯３３ａと対向し、歯１１２ｇと共に帯状材１００を強く挟んで、第３フック兼第２係止歯１３ｃの歯３３ａとの間で帯状材１００を固定できるようになっている。歯３３ａは、各歯の断面が図１７及び図２０に示すように、各歯は先端側が尖った側面視鍵爪状をした突起でなり、第３フック兼第１係止歯１３ｃと略同じ幅に亘って連続してライン状に形成されている。その歯１３ｃの突起は、少なくとも２歯(２山)以上形成するのが好ましい。 As shown in FIG. 24, the length L1 of the first hook and the first locking tooth 12f in the axial direction (horizontal direction) is the length L0 of the length L0 in the axial direction of the cover 12, as shown in FIG. It is preferably the same as or about 80% in length. Further, 112 g of teeth corresponding to the first locking tooth 12e of the first embodiment are provided on the side surface of the first hook and the first locking tooth 12f. When the cover 12 closes the opening 13, the teeth 112g face the teeth 33a of the third hook / second locking tooth 13c, which will be described later, and strongly sandwich the band-shaped material 100 together with the teeth 112g to form the third hook / second. The band-shaped member 100 can be fixed between the locking tooth 13c and the tooth 33a. As the cross section of each tooth 33a is shown in FIGS. 17 and 20, each tooth is a side-viewing key-claw-shaped protrusion with a pointed tip side, which is substantially the same as the third hook and first locking tooth 13c. It is continuously formed in a line shape over the width. It is preferable that at least two teeth (two peaks) are formed on the protrusions of the teeth 13c.

第２実施例におけるハブ本体１１は、第１実施例における第３フック１３ａと対応する部分に、図１７に示すようにカバー１２の第１フック兼第１係止歯１２ｆと対応して、第３フック兼第２係止歯１３ｃが設けられている。第３フック兼第２係止歯１３ｃは、図１７、図１８、図１９、図２０に示すように第１実施例の第２係止歯３３に相当する歯３３ａが、第３フック兼第２係止歯１３ｃの側面に設けられている。歯３３ａは、カバー１２が開口１３を閉じたとき、第１フック兼第１係止歯１２ｆの歯１１２gと対向し、歯１１２gと共に帯状材１００を強く挟んで、第３フック兼第２係止歯１３ｃの歯３３ａとの間で帯状材１００を固定できるようになっている。歯１１２gは、各歯の断面が図１７及び図２４に示すように、各歯は先端側が尖った側面視鍵爪状をした突起でなり、図２３に示すよう第１フック兼第１係止歯１２ｆと略同じ幅に亘って連続してライン状に形成されている。その歯１１２gの突起は、少なくとも１歯(１山)以上設け、第３フック兼第２係止歯１３ｃの突起を少なくとも２歯(２山)形成するようにしてもよい。また、逆に第１フック兼第１係止歯１２ｆの歯１１２gの突起を少なくとも２歯(２山)以上設け、第３フック兼第２係止歯１３ｃの歯３３aの突起を少なくとも１歯(１山)以上形成するようにしてもよい。なお、いずれの場合も、第１フック兼第１係止歯１２ｆの歯１１２gと第３フック兼第２係止歯１３ｃの歯３３aとは互いに噛み合うようにして形成するのが好ましい。 The hub main body 11 in the second embodiment has a portion corresponding to the third hook 13a in the first embodiment, and corresponds to the first hook and the first locking tooth 12f of the cover 12 as shown in FIG. A 3-hook and second locking tooth 13c is provided. As shown in FIGS. 17, 18, 19, and 20, the third hook / second locking tooth 13c has a tooth 33a corresponding to the second locking tooth 33 of the first embodiment as a third hook / second locking tooth. 2 It is provided on the side surface of the locking tooth 13c. When the cover 12 closes the opening 13, the tooth 33a faces the tooth 112g of the first hook / first locking tooth 12f, strongly sandwiches the band-shaped member 100 together with the tooth 112g, and holds the third hook / second locking. The band-shaped material 100 can be fixed between the tooth 13c and the tooth 33a. As shown in FIGS. 17 and 24, each tooth 112g has a side view key claw-shaped protrusion with a pointed tip side, and as shown in FIG. 23, the first hook and the first locking It is continuously formed in a line shape over substantially the same width as the tooth 12f. At least one tooth (one mountain) or more may be provided as the protrusion of the tooth 112 g, and at least two teeth (two threads) may be formed as the protrusion of the third hook / second locking tooth 13c. On the contrary, at least two protrusions (two peaks) of the teeth 112g of the first hook and the first locking tooth 12f are provided, and at least one protrusion of the tooth 33a of the third hook and the second locking tooth 13c is provided. One mountain) or more may be formed. In any case, it is preferable that the tooth 112g of the first hook / first locking tooth 12f and the tooth 33a of the third hook / second locking tooth 13c are formed so as to mesh with each other.

次に、このように構成された第２実施例のハブ１０に、帯状材１００の一端部１００ａを固定して、帯状材１００をハブ１０の外周面に巻回して使用する手順を説明する。 Next, a procedure will be described in which one end 100a of the strip-shaped member 100 is fixed to the hub 10 of the second embodiment configured in this way, and the strip-shaped member 100 is wound around the outer peripheral surface of the hub 10 for use.

まず、第１実施例の場合と同様に、カバー１２をハブ本体１１から取り外した状態において、開口１３から帯状材１００の一端部１００ａを、その一端部１００ａが第２係止歯３３を越える位置まで差し込む。 First, as in the case of the first embodiment, in a state where the cover 12 is removed from the hub main body 11, one end 100a of the strip 100 is inserted from the opening 13 and the one end 100a exceeds the second locking tooth 33. Plug in.

続いて、カバー１２を持ち、第１フック兼第１係止歯１２ｆの歯１１２ｇが第３フック兼第２係止歯１３ｃの歯３３ａと係合するようにして、その第１フック兼第１係止歯１２ｆを帯状材１００と共に第３フック兼第２係止歯１３ｃの歯３３ａに押し付けて、第１フック兼第１係止歯１２ｆ側を第３フック兼第２係止歯１３ｃに対して係合位置決めする。次いで、カバー１２の第２フック１２ｄ側をハブ本体１１側に押し付ける。カバー１２をハブ本体１１側に強く押し付けると、カバー１２が弾性変形しながらハブ本体１１側に移動し、第２フック１２ｄが第４フック１３ｂの断面Ｌ字状部４１の下面まで移動し、第２フック１２ｄの鍵爪が下面に係合される。 Subsequently, the cover 12 is held so that the tooth 112g of the first hook / first locking tooth 12f engages with the tooth 33a of the third hook / second locking tooth 13c so that the first hook / first hook / first The locking tooth 12f is pressed against the tooth 33a of the third hook / second locking tooth 13c together with the band-shaped material 100, and the first hook / first locking tooth 12f side is pressed against the third hook / second locking tooth 13c. To engage and position. Next, the second hook 12d side of the cover 12 is pressed against the hub body 11 side. When the cover 12 is strongly pressed against the hub body 11, the cover 12 elastically deforms and moves toward the hub body 11, and the second hook 12d moves to the lower surface of the L-shaped cross section 41 of the fourth hook 13b. The key claw of the 2 hook 12d is engaged with the lower surface.

これにより、カバー１２は、第１フック兼第１係止歯１２ｆと第３フック兼第２係止歯１３ｃとの係合及び第２フック１２ｂと第４フック１３ｂとの係合により、ハブ本体１１に開口１３を閉じて取り付けられる。また、カバー１２が閉じられた状態では、開口１３内に差し込まれた帯状材１００の一端部１００ａ側は、第１フック兼第１係止歯１２ｆと第３フック兼第２係止歯１３ｃとで強固に挟持固定される。 As a result, the cover 12 has a hub body due to the engagement between the first hook / first locking tooth 12f and the third hook / second locking tooth 13c and the engagement between the second hook 12b and the fourth hook 13b. The opening 13 is closed and attached to 11. Further, when the cover 12 is closed, the one end portion 100a side of the strip-shaped member 100 inserted into the opening 13 has a first hook / first locking tooth 12f and a third hook / second locking tooth 13c. It is firmly pinched and fixed.

また、カバー１２がハブ本体１１に取り付けられたら、ハブ１０を右方向に回転させ、帯状材１００をアウターリング領域部２１の外周面２１ａ上に巻回し、これを駆動軸又はリミッター１０９にセットすると紙葉搬送機械１０１で使用することができる。 When the cover 12 is attached to the hub body 11, the hub 10 is rotated to the right, the strip 100 is wound on the outer peripheral surface 21a of the outer ring region 21, and this is set on the drive shaft or the limiter 109. It can be used in the paper leaf transport machine 101.

反対に、ハブ１０から帯状材１００を取り外す場合は、第１実施例の場合と同様に、カバー取り外し口４２から、カバー１２とハブ本体１１との間にマイナスドライバーの先端等の治具を挿入し、カバー１２にハブ本体１１から引き離す力を与える。すると、第２フック１２ｄと第４フック１３ｂとの係合が強制的に外され、カバー１２をハブ本体１１から取り外すことができる。その後、帯状材１００を外側へ引くと、一端部１０１ａを開口から抜いて取り外すことができる。 On the contrary, when removing the strip 100 from the hub 10, a jig such as the tip of a flat-blade screwdriver is inserted between the cover 12 and the hub body 11 from the cover removal port 42 as in the case of the first embodiment. Then, the cover 12 is given a force to pull it away from the hub body 11. Then, the engagement between the second hook 12d and the fourth hook 13b is forcibly disengaged, and the cover 12 can be removed from the hub body 11. After that, when the strip 100 is pulled outward, one end 101a can be pulled out from the opening and removed.

したがって、このように構成された第２の実施例におけるハブ１０を使用した紙葉搬送機械１０１でも、ハブ１０において、帯状材１００の一端部１０１ａ側は、ハブ本体１１内で第１フック兼第１係止歯１２ｆと第３フック兼第２係止歯１３ｃとで挟持固定されるので、帯状材１００に対するハブ１０の挟持固定がより強固になる。これにより、仮に終端時に帯状材１００に強い引っ張り力が加わっても、帯状材１００がハブ１０から簡単に外れてしまうことがない。また、ハブ本体１１からカバー１２を外し、帯状材１００の一端部１００ａを開口１３に差し込んだ後、カバー１２を再び閉じれば取り付けることができるので、取り付け作業も簡単になる。さらに、カバー１２をハブ本体１１に取り付けるだけで帯状材１００の一端部１０１ａをハブ１０に強固に固定することができ、接着剤や保持部材を使用する必要がないので、製品コストを下げることができる。 Therefore, even in the paper leaf transport machine 101 using the hub 10 in the second embodiment configured as described above, in the hub 10, one end portion 101a side of the strip-shaped member 100 is the first hook and the first hook in the hub body 11. Since the 1 locking tooth 12f and the third hook / second locking tooth 13c are sandwiched and fixed, the hub 10 is sandwiched and fixed to the strip-shaped member 100 more firmly. As a result, even if a strong tensile force is applied to the strip-shaped member 100 at the time of termination, the strip-shaped member 100 does not easily come off from the hub 10. Further, since the cover 12 can be removed from the hub main body 11, the one end portion 100a of the strip-shaped member 100 is inserted into the opening 13, and then the cover 12 is closed again, the cover 12 can be attached, so that the attachment work becomes easy. Further, the one end portion 101a of the strip-shaped member 100 can be firmly fixed to the hub 10 simply by attaching the cover 12 to the hub body 11, and it is not necessary to use an adhesive or a holding member, so that the product cost can be reduced. it can.

なお、本発明は、本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。 It should be noted that the present invention can be modified in various ways as long as it does not deviate from the spirit of the present invention, and it is natural that the present invention extends to the modified ones.

本発明は、紙葉搬送機械に限ること無く、帯状材や紐を巻回する装置にも応用できる。 The present invention is not limited to the paper leaf transport machine, but can also be applied to a device for winding a strip-shaped material or a string.

１０ハブ
１１ハブ本体
１２カバー
１２ａ外周面
１２ｂ内面
１２ｃ第１フック
１２ｄ第２フック
１２ｅ第１係止歯
１２ｆ第１フック兼第１係止歯
１１２ｇ歯
１３開口
１３ａ端縁部(第３フック)
１３ｂ端縁部(第４フック)
１３ｃ第３フック兼第２係止歯
１４支持壁
１５空間
２１アウターリング領域部
２１ａ外周面
２２端板部
３１インナーリング領域部
３１ａ外周面
３２スリット
３３第２係止歯
３３ａ歯
４０断面コ字状部
４１断面Ｌ字状部
４２カバー取り外し口
Ｏ軸
Ｌ０カバーの軸方向長さ
Ｌ１第１フックの軸方向の長さ
Ｌ２第２フックの軸方向の長さ
１００帯状材
１００ａ一端部
１０１紙葉搬送機械
１０２第１巻回部
１０３第２巻回部
１０４中央巻回部
１０５第１ベルト
１０６第２ベルト
１０７ガイドローラ
１０８駆動軸
１０９リミッター
１１０投入・受取口 10 Hub 11 Hub body 12 Cover 12a Outer peripheral surface 12b Inner surface 12c First hook 12d Second hook 12e First locking tooth 12f First hook and first locking tooth 112g Tooth 13 Opening 13a Edge (third hook)
13b Edge edge (4th hook)
13c 3rd hook and 2nd locking tooth 14 Support wall 15 Space 21 Outer ring area 21a Outer ring area 22 End plate 31 Inner ring area 31a Outer surface 32 Slit 33 2nd locking tooth 33a Tooth 40 Cross-section U-shaped Part 41 Cross section L-shaped part 42 Cover removal port O Axis L0 Axial length of cover L1 Axial length of first hook L2 Axial length of second hook 100 Belt-shaped material 100a One end 101 Paper strip transport Machine 102 1st winding 103 2nd winding 104 Central winding 105 1st belt 106 2nd belt 107 Guide roller 108 Drive shaft 109 Limiter 110 Input / receiving port

Claims

In a hub structure in which one end of a strip or string is fixed and the strip or string is wound on an outer peripheral surface.
A hub body having an opening for inserting one end of the strip-shaped material or the string on the outer peripheral surface and an arc-shaped cover for opening and closing the opening of the hub body are provided.
The cover has a first hook and a second hook separately provided on both ends in the winding direction, and a first locking tooth provided on the inner surface of the cover.
The hub body includes an outer ring region portion formed in a tubular shape with the opening provided on the outer peripheral surface, an inner ring region portion formed in a tubular shape and provided inside the outer ring region portion, and the outer ring portion. A third hook that is detachably provided with the first hook and a fourth hook that is detachably provided with the second hook in the opening of the ring region portion, and the strip-shaped material inserted through the opening or It has a second locking tooth provided so as to hold and fix one end of the string together with the first locking tooth of the cover with the opening closed.
The first locking tooth and the second locking tooth are formed of acute-angled protrusions in a lateral view.
A plurality of protrusions of the first locking tooth or at least one of the protrusions of the second locking tooth are continuously provided along the circumferential direction of the hub body in a side view.
The first one of the projection or the second locking teeth projections of the locking teeth is characterized by being formed by have inclined to the direction to be pulled out the strip material or the string in a side view in the opposite direction Hub structure.

The hub structure according to claim 1, wherein the cover and the hub body are made of a synthetic resin material.

The hub structure according to claim 1 or 2, wherein the first locking tooth is provided adjacent to the first hook on the first hook side of the cover.

The first, second or third aspect of the present invention, wherein the strip-shaped material or the string is pulled out from the first hook side of the cover onto the outer peripheral surface of the outer ring region portion and wound around the outer ring region portion. Hub structure.

Claims 1, 2, and 3 are provided on the second hook side of the cover with a cover removing port for inserting a jig for disengaging the second hook with respect to the fourth hook. Or the hub structure according to 4.

Claims 1, 2, 3, 4 characterized in that the first locking tooth is provided on the side surface of the first hook, and the second locking tooth is provided on the side surface of the third hook. Or the hub structure according to 5.