JP2022095126A - Coil binding protection material, coil binding method, and coil binding body - Google Patents

Coil binding protection material, coil binding method, and coil binding body Download PDF

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JP2022095126A
JP2022095126A JP2020208275A JP2020208275A JP2022095126A JP 2022095126 A JP2022095126 A JP 2022095126A JP 2020208275 A JP2020208275 A JP 2020208275A JP 2020208275 A JP2020208275 A JP 2020208275A JP 2022095126 A JP2022095126 A JP 2022095126A
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coil
peripheral end
binding
end portion
main body
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捺生 笹田
Natsuki Sasada
紘二 大坪
Koji Otsubo
比文 ▲高▼井
Hifumi Takai
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Nippon Steel Corp
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Abstract

To provide a coil binding protection material whose damage is hardly generated when coils are bound.SOLUTION: A coil binding protection material 1 attached to a side face part of a coil made of a metal wire comprises a ring-shaped and plate-like body part 4 provided with an outer peripheral end portion 2 and an inner peripheral end portion 3. At the body part 4, a plurality of binding material attachment-planned areas 6 where belt-shaped binding materials are respectively attached are set mutually spaced from each other along a circumferential direction of the body part 4. Pairs of first cut parts 7 are provided in each of the outer peripheral end portion 2 and the inner peripheral end portion 3 of the binding material attachment-planned areas 6. The first cut parts 7 each are a notch bent toward the circumferential direction of the body part 4 from a radial direction of the body part 4, when the outer peripheral end portion 2 or the inner peripheral end portion 3 is defined to be one end of the notch.SELECTED DRAWING: Figure 1

Description

本発明は、コイル結束用の保護材、コイル結束方法及びコイル結束体に関する。 The present invention relates to a protective material for coil bundling, a coil bundling method, and a coil bundling body.

金属線材の工場では、一例として、金属素材を所望の線径になるまで熱間圧延し、更に冷却及び巻取りを行うことにより金属線材を製造する。また、熱間圧延後の金属線材には、酸洗、被膜処理、伸線加工等が施される場合がある。そして、製造された金属線材は、検査が行われた後に、コイル状に巻き取られた状態で結束され、コイルの荷姿のまま出荷される。 In a metal wire factory, as an example, a metal wire is manufactured by hot rolling the metal material to a desired wire diameter, and then cooling and winding the metal material. Further, the metal wire after hot rolling may be subjected to pickling, coating treatment, wire drawing, or the like. Then, after the inspection is performed, the manufactured metal wire is bundled in a coiled state and shipped in the packaged state of the coil.

金属線材は、製造段階においてコイルに巻回された状態で工場内を搬送されて製品完成のために必要な工程が施され、また、製品出荷の際にはコイル状に巻回された形態で需要者の元に届けられる。このように、金属線材は、工場の内外においてコイルの形態で搬送される機会が多いが、搬送の際に、コイルの側面部において疵が発生する場合がある。そこで、コイルの側面部における疵の発生を防止するために、側面部に保護板を取り付けることが行われている。 The metal wire is transported in the factory in a state of being wound around a coil at the manufacturing stage and subjected to the process necessary for completing the product, and is wound in a coil shape when the product is shipped. Delivered to the consumer. As described above, the metal wire is often transported in the form of a coil inside and outside the factory, but during the transportation, a defect may occur on the side surface of the coil. Therefore, in order to prevent the occurrence of flaws on the side surface portion of the coil, a protective plate is attached to the side surface portion.

例えば、特許文献1には、線材を巻回したコイルの側面部にリング状の当て板を配置し、コイルとともにその複数箇所を結束材により固定する技術が記載されている。特許文献1では、当て板の一側面、外周面または内周面に規制部を形成し、この規制部によって結束材のコイル周方向への移動規制を実現している例がある。 For example, Patent Document 1 describes a technique in which a ring-shaped backing plate is arranged on a side surface of a coil around which a wire is wound, and a plurality of places thereof are fixed together with the coil by a binding material. In Patent Document 1, there is an example in which a restricting portion is formed on one side surface, an outer peripheral surface or an inner peripheral surface of a backing plate, and the restricting portion realizes the movement restriction of the binding material in the coil circumferential direction.

しかし、線材からなるコイルの側面部に、当て板などの保護板を配置した状態で、結束材によって保護板とともにコイルを結束すると、コイルの側面部に配置されていた保護板が結束材によって破損してしまい、コイルに保護板が適切に装着されず、不適切な荷姿となる荷姿不良が生じる場合がある。最近では、保護板の素材として、段ボール紙のような紙素材や、樹脂素材の採用が増加しつつあり、保護板の破損がより発生しやすくなっている。 However, if a protective plate such as a backing plate is placed on the side surface of the coil made of wire and the coil is bound together with the protective plate by the binding material, the protective plate placed on the side surface of the coil is damaged by the binding material. As a result, the protective plate may not be properly attached to the coil, resulting in improper packaging. Recently, the use of paper materials such as corrugated cardboard and resin materials as the material of the protective plate is increasing, and the protective plate is more likely to be damaged.

実開昭63-197802号公報Jitsukaisho 63-197802.

本発明は上記事情に鑑みてなされたものであり、コイル結束の際に破損が起きにくいコイル結束用の保護材及びコイル結束方法並びにコイル結束体を提供することを課題とする。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a protective material for coil bundling, a coil bundling method, and a coil bundling body, which are less likely to be damaged during coil bundling.

上記課題を解決するため、本発明は以下の構成を採用する。
[1] 金属線材からなるコイルの側面部に装着されるコイル結束用の保護材であって、
外周端部及び内周端部を有するリング状かつ板状の本体部からなり、
前記本体部には、帯状の結束材が装着される複数の結束材装着予定領域が、前記本体部の周方向に沿って相互に間隔を空けて設定され、
前記結束材装着予定領域の前記外周端部及び前記内周端部のそれぞれに、一対の第1切込み部が設けられ、
前記第1切込み部は、前記外周端部または前記内周端部を切込みの一端とした場合に、前記本体部の径方向から前記本体部の周方向に向けて曲げられた切込みである、コイル結束用の保護材。
[2] 前記結束材装着予定領域の外側の前記外周端部及び前記内周端部のそれぞれには、前記結束材装着予定領域の両側に位置する一対の第2切込み部が設けられている、[1]に記載のコイル結束用の保護材。
[3] 前記外周端部に設けた前記第2切込み部の位置が、前記内周端部に設けた前記第2切込み部の位置に対して、前記本体部の径方向の延長線上から外れた位置にある、[2]に記載のコイル結束用の保護材。
[4] 前記内周端部に、位置ずれ防止のための第1切り欠き部が設けられている、[1]乃至[3]の何れか一項に記載のコイル結束用の保護材。
[5] 前記外周端部に、位置ずれ防止のための第2切り欠き部が、前記本体部の中心に対して前記第1切り欠き部の反対側に設けられている、[4]に記載のコイル結束用の保護材。
[6] 金属線材が巻回されてなるコイルの側面部に、[1]乃至[5]の何れか一項に記載のコイル結束用の保護材を配置する配置段階と、
前記保護材の結束材装着予定領域に帯状の結束材が装着されるように、前記結束材によって前記保護材と前記コイルとを結束する結束段階と、を備える、コイル結束方法。
[7] 金属線材が巻回されてなるコイルと、
前記コイルの側面部に配置された[1]乃至[5]の何れか一項に記載のコイル結束用の保護材と、
前記保護材の結束材装着予定領域に装着されるように、前記保護材及び前記コイルを結束する帯状の結束材と、を備えたコイル結束体。
In order to solve the above problems, the present invention adopts the following configuration.
[1] A protective material for binding a coil, which is attached to the side surface of a coil made of a metal wire.
It consists of a ring-shaped and plate-shaped main body having an outer peripheral end and an inner peripheral end.
In the main body portion, a plurality of binding material mounting areas on which the band-shaped binding material is to be mounted are set at intervals along the circumferential direction of the main body portion.
A pair of first notches are provided in each of the outer peripheral end portion and the inner peripheral end portion of the binding material mounting area.
The first cut portion is a coil that is bent from the radial direction of the main body portion toward the circumferential direction of the main body portion when the outer peripheral end portion or the inner peripheral end portion is used as one end of the cut. Protective material for binding.
[2] A pair of second notches located on both sides of the binding material mounting area are provided on each of the outer peripheral end portion and the inner peripheral end portion outside the binding material mounting area. The protective material for coil bundling according to [1].
[3] The position of the second cut portion provided at the outer peripheral end portion deviates from the radial extension line of the main body portion with respect to the position of the second cut portion provided at the inner peripheral end portion. The protective material for coil bundling according to [2] at the position.
[4] The protective material for coil bundling according to any one of [1] to [3], wherein a first notch for preventing misalignment is provided at the inner peripheral end portion.
[5] The second notch portion for preventing misalignment is provided at the outer peripheral end portion on the opposite side of the first notch portion with respect to the center of the main body portion, according to [4]. Protective material for coil bundling.
[6] An arrangement step of arranging the protective material for coil bundling according to any one of [1] to [5] on the side surface of the coil around which the metal wire is wound.
A coil binding method comprising a binding step of binding the protective material and the coil by the binding material so that the band-shaped binding material is mounted in the binding material mounting area of the protective material.
[7] A coil made by winding a metal wire and
The protective material for coil bundling according to any one of [1] to [5] arranged on the side surface portion of the coil, and the protective material for binding the coil.
A coil binding body comprising the protective material and a band-shaped binding material for binding the coil so as to be mounted in the area where the binding material of the protective material is to be mounted.

本発明のコイル結束用の保護材によれば、結束材装着予定領域の外周端部及び内周端部のそれぞれに、一対の第1切込み部があらかじめ設けられているので、コイル及び保護材を結束するための結束材が結束材装着予定領域に装着された際に、一対の第1切込み部の間の外周端部及び内周端部が、結束材によってコイル側に容易に曲げられるようになり、これにより、本体部に亀裂が生じるおそれがなく、保護材の破損を防止できる。
また、第1切込み部が、外周端部または内周端部を切込みの一端とした場合に、本体部の径方向から本体部の周方向に向けて曲げられた切込みであるので、結束材の装着によって第1切込み部を起点として本体部に亀裂が生じたとしても、亀裂の伝搬方向が本体部の周方向に誘導されるため、本体部の径方向に沿って亀裂が生じるおそれがなく、本体部の破断を防止できる。
According to the protective material for coil bundling of the present invention, a pair of first notches are provided in advance at each of the outer peripheral end portion and the inner peripheral end portion of the binding material mounting area, so that the coil and the protective material can be provided. When the binding material for binding is mounted in the planned binding material mounting area, the outer peripheral end portion and the inner peripheral end portion between the pair of first notches are easily bent toward the coil by the binding material. As a result, there is no risk of cracks in the main body, and damage to the protective material can be prevented.
Further, when the first notch portion has the outer peripheral end portion or the inner peripheral end portion as one end of the notch, the notch is bent from the radial direction of the main body portion toward the circumferential direction of the main body portion. Even if a crack occurs in the main body from the first notch due to mounting, the propagation direction of the crack is guided in the circumferential direction of the main body, so that there is no possibility that the crack will occur along the radial direction of the main body. It is possible to prevent the main body from breaking.

また、本発明のコイル結束用の保護材によれば、結束材装着予定領域の外側に、一対の第2切込み部があらかじめ設けられているので、コイル及び保護材を結束するための結束材が、結束材装着予定領域から誤って外れて装着されたとしても、第2切込み部があることで外周端部及び内周端部が結束材によってコイル側に容易に曲げられ、本体部に亀裂が生じることがなくこれにより、保護材の破損を防止できる。 Further, according to the protective material for coil binding of the present invention, since the pair of second notches are provided in advance on the outside of the area where the binding material is to be mounted, the binding material for binding the coil and the protective material can be provided. Even if the binding material is accidentally mounted out of the planned mounting area, the outer peripheral end and the inner peripheral end are easily bent toward the coil by the binding material due to the presence of the second notch, and the main body is cracked. This does not occur, and it is possible to prevent damage to the protective material.

また、本発明のコイル結束用の保護材によれば、外周端部に設けた第2切込み部の位置が、内周端部に設けた第2切込み部の位置に対して、本体部の径方向の延長線上から外れた位置にあるので、結束材の装着によって第2切込み部を起点として本体部に亀裂が生じたとしても、亀裂が大きく進展するおそれが低く、本体部の破断を防止できる。 Further, according to the protective material for coil bundling of the present invention, the position of the second cut portion provided at the outer peripheral end portion is the diameter of the main body portion with respect to the position of the second cut portion provided at the inner peripheral end portion. Since it is located off the extension line in the direction, even if a crack occurs in the main body starting from the second notch due to the attachment of the binding material, there is a low possibility that the crack will grow significantly and the main body can be prevented from breaking. ..

また、本発明のコイル結束用の保護材によれば、内周端部に位置ずれ防止のための第1切り欠き部が設けられているので、結束材の装着のためにコイルの中空部及び保護材のリング状の本体部に吊り具を挿入してコイルと保護材とを仮固定する際に、吊り具が第1切り欠き部に係合し、これにより、コイルに対して保護材を適切に位置決めすることができ、結束材装着予定領域に結束材を確実に装着することができる。 Further, according to the protective material for coil bundling of the present invention, since the first notch portion for preventing misalignment is provided at the inner peripheral end portion, the hollow portion of the coil and the hollow portion for mounting the bundling material are provided. When the hanger is inserted into the ring-shaped main body of the protective material to temporarily fix the coil and the protective material, the hanger engages with the first notch, thereby providing the protective material to the coil. It can be positioned appropriately, and the binding material can be reliably mounted in the area where the binding material is to be mounted.

また、本発明のコイル結束用の保護材によれば、外周端部に位置ずれ防止のための第2切り欠き部が設けられているので、結束材の装着のためにコイル及び保護材を昇降台上に載置した際に、昇降台の一部が第2切り欠き部に係合し、これにより、コイルに対して保護材が適切な位置決めされたまま、結束材装着予定領域に結束材を確実に装着することができる。 Further, according to the protective material for coil bundling of the present invention, a second notch for preventing misalignment is provided at the outer peripheral end portion, so that the coil and the protective material can be raised and lowered for mounting the bundling material. When placed on the table, a part of the lift table engages with the second notch, which keeps the protective material properly positioned with respect to the coil and in the area where the binding material is to be mounted. Can be securely attached.

次に、本発明のコイル結束方法によれば、金属線材が巻回されてなるコイルの側面部に保護材を配置した上で、結束材装着予定領域に帯状の結束材が装着されるように、結束材によって保護材とコイルとを結束するので、結束の際に保護材の破損を防止することができる。 Next, according to the coil binding method of the present invention, a protective material is placed on the side surface of the coil around which the metal wire is wound, and then the band-shaped binding material is mounted in the binding material mounting area. Since the protective material and the coil are bound by the binding material, it is possible to prevent the protective material from being damaged during binding.

次に、本発明のコイル結束体によれば、保護材の破損箇所が少ないため、保護材によってコイルの側面部を確実に保護することができ、側面部の疵の発生を確実に防止できる。 Next, according to the coil bundling body of the present invention, since there are few damaged parts of the protective material, the side surface portion of the coil can be reliably protected by the protective material, and the occurrence of flaws on the side surface portion can be reliably prevented.

図1は、本発明の実施形態であるコイル結束用の保護材を示す平面模式図。FIG. 1 is a schematic plan view showing a protective material for coil bundling according to an embodiment of the present invention. 図2は、本発明の実施形態であるコイル結束用の保護材の要部を示す平面模式図。FIG. 2 is a schematic plan view showing a main part of a protective material for coil bundling according to an embodiment of the present invention. 図3は、本発明の実施形態であるコイル結束方法を説明する模式図。FIG. 3 is a schematic diagram illustrating a coil bundling method according to an embodiment of the present invention. 図4は、本発明の実施形態であるコイル結束方法を説明する模式図。FIG. 4 is a schematic diagram illustrating a coil bundling method according to an embodiment of the present invention. 図5は、本発明の実施形態であるコイル結束方法を説明する模式図。FIG. 5 is a schematic diagram illustrating a coil bundling method according to an embodiment of the present invention. 図6は、本発明の実施形態であるコイル結束方法を説明する模式図。FIG. 6 is a schematic diagram illustrating a coil bundling method according to an embodiment of the present invention. 図7は、本発明の実施形態であるコイル結束体を示す正面模式図。FIG. 7 is a front schematic view showing a coil bundling body according to an embodiment of the present invention. 図8は、本発明の実施形態であるコイル結束体を示す側面模式図。FIG. 8 is a schematic side view showing a coil bundling body according to an embodiment of the present invention. 図9は、第1切込み部を説明する模式図。FIG. 9 is a schematic view illustrating the first cut portion. 図10は、第1切込み部を説明する模式図。FIG. 10 is a schematic view illustrating the first cut portion. 図11は、第2切込み部を説明する模式図。FIG. 11 is a schematic view illustrating the second notch portion. 図12は、第2切り欠き部を説明する模式図。FIG. 12 is a schematic view illustrating the second notch portion. 図13は、コイル結束体における保護材の装着不良を説明する模式図。FIG. 13 is a schematic view illustrating a defective mounting of the protective material in the coil bundling body.

以下、本発明の実施形態であるコイル結束用の保護材及びコイル結束方法並びにコイル結束体について図面を参照して説明する。 Hereinafter, the protective material for coil bundling, the coil bundling method, and the coil bundling body according to the embodiment of the present invention will be described with reference to the drawings.

図1には、本実施形態のコイル結束用の保護材1の平面模式図を示す。図1に示すように、本実施形態の保護材1は、外周端部2及び内周端部3を有するリング状でかつ板状の本体部4からなり、本体部4には、帯状の結束材5が装着される複数の結束材装着予定領域6が、本体部4の周方向に沿って相互に間隔を空けて設定されている。図1には、結束材装着予定領域6のうちの1つに斜線を付している。結束材装着予定領域6の外周端部2及び内周端部3のそれぞれには、一対の第1切込み部7が設けられており、第1切込み部7は、外周端部2または内周端部3を切込みの一端とした場合に、本体部4の径方向から本体部4の周方向に向けて曲げられた切込みとされている。以下、本実施形態の保護材1について詳細に説明する。 FIG. 1 shows a schematic plan view of the protective material 1 for coil bundling according to the present embodiment. As shown in FIG. 1, the protective material 1 of the present embodiment is composed of a ring-shaped and plate-shaped main body portion 4 having an outer peripheral end portion 2 and an inner peripheral end portion 3, and the main body portion 4 is bound in a band shape. A plurality of binding material mounting areas 6 on which the material 5 is mounted are set so as to be spaced apart from each other along the circumferential direction of the main body portion 4. In FIG. 1, one of the areas 6 where the binding material is to be mounted is shaded. A pair of first cut portions 7 are provided in each of the outer peripheral end portion 2 and the inner peripheral end portion 3 of the binding material mounting area 6, and the first cut portion 7 is the outer peripheral end portion 2 or the inner peripheral end portion 7. When the portion 3 is used as one end of the notch, the notch is bent from the radial direction of the main body portion 4 toward the circumferential direction of the main body portion 4. Hereinafter, the protective material 1 of the present embodiment will be described in detail.

本体部4は、リング状かつ板状の部材である。本体部4は、例えば、段ボール紙のような紙素材や、樹脂素材などのように、外力の作用により容易に曲げることが可能な、弾性若しくは可撓性を有する素材から構成される。本体部4は、例えば、段ボールまたは樹脂からなるシートを所定の形状に打ち抜くことによって得られる。 The main body 4 is a ring-shaped and plate-shaped member. The main body 4 is made of an elastic or flexible material that can be easily bent by the action of an external force, such as a paper material such as corrugated cardboard or a resin material. The main body 4 is obtained, for example, by punching a sheet made of corrugated cardboard or resin into a predetermined shape.

本体部4は、平面視略円形形状の外形を有し、中央部分に貫通孔4aが設けられており、平面視した場合にリング状の形状とされている。本体部4は、その外形をなす外周端部2と、貫通孔4aを区画する内周端部3とを有している。 The main body 4 has an outer shape having a substantially circular shape in a plan view, a through hole 4a is provided in a central portion thereof, and has a ring shape when viewed in a plan view. The main body portion 4 has an outer peripheral end portion 2 forming an outer shape thereof and an inner peripheral end portion 3 for partitioning the through hole 4a.

本体部4には、結束材5が装着される位置に結束材装着予定領域6が設定されている。結束材装着予定領域6は、本体部4に設定された一定の範囲の領域である。結束材装着予定領域6は、本実施形態の保護材1が金属線材からなるコイルの側面部に配置されて結束材によりコイルに結束される際に、帯状の結束材が装着される領域である。図1に示す本体部4には、4つの結束材装着予定領域6が設けられている。結束材装着予定領域6は、本体部4の周方向に沿って相互に間隔を空けて設定されている。結束材装着予定領域6の数は4つに限られず、2つ以上であればよい。図1では、結束材装着予定領域6のうちの1つに斜線を付することで、その範囲を示している。 In the main body 4, a binding material mounting area 6 is set at a position where the binding material 5 is mounted. The binding material mounting area 6 is an area within a certain range set in the main body 4. The binding material mounting area 6 is a region where the band-shaped binding material is mounted when the protective material 1 of the present embodiment is arranged on the side surface of the coil made of a metal wire and is bound to the coil by the binding material. .. The main body 4 shown in FIG. 1 is provided with four binding material mounting areas 6. The binding material mounting area 6 is set so as to be spaced apart from each other along the circumferential direction of the main body portion 4. The number of the binding material mounting areas 6 is not limited to four, and may be two or more. In FIG. 1, one of the areas where the binding material is to be mounted is shaded to indicate the range.

図2には、図1の拡大図であって保護材1の要部の平面模式図を示す。図1及び図2に示すように、結束材装着予定領域6の内周端部3及び外周端部2のそれぞれには、一対の第1切込み部7が設けられている。一対の第1切込み部7の間に結束材装着予定領域6が位置する。すなわち、内周端部3側の一対の第1切込み部7は、結束材装着予定領域6の周方向両側に設けられており、また、外周端部2側の一対の第1切込み部7も、結束材装着予定領域6の周方向両側に設けられている。第1切込み部7は、本体部4の内周端部3及び外周端部2をそれぞれ一端として本体部4に設けられた切れ込みであり、本体部4の厚み方向全部が切込まれている。また、第1切込み部7は、本体部4に設定された全ての結束材装着予定領域6に設けられている。図1に示す例では、内周端部3に8つの(4対の)第1切込み部7が設けられ、外周端部2にも8つの(4対の)第1切込み部7が設けられている。 FIG. 2 is an enlarged view of FIG. 1 and shows a schematic plan view of a main part of the protective material 1. As shown in FIGS. 1 and 2, a pair of first cut portions 7 are provided in each of the inner peripheral end portion 3 and the outer peripheral end portion 2 of the binding material mounting area 6. The binding material mounting area 6 is located between the pair of first notches 7. That is, the pair of first notches 7 on the inner peripheral end 3 side are provided on both sides in the circumferential direction of the binding material mounting area 6, and the pair of first notches 7 on the outer peripheral end 2 side are also provided. , The binding material is provided on both sides of the planned mounting area 6 in the circumferential direction. The first cut portion 7 is a notch provided in the main body portion 4 with the inner peripheral end portion 3 and the outer peripheral end portion 2 of the main body portion 4 as one end, respectively, and the entire thickness direction of the main body portion 4 is cut. Further, the first notch portion 7 is provided in all the binding material mounting planned regions 6 set in the main body portion 4. In the example shown in FIG. 1, eight (4 pairs) first cuts 7 are provided at the inner peripheral end portion 3, and eight (4 pairs) first cut portions 7 are also provided at the outer peripheral end portion 2. ing.

本実施形態では、一対の第1切込み部7の間にある領域が、結束材装着予定領域6とされる。コイルと保護材1を結束材によって結束する際には、一対の第1切込み部7同士の間に結束材を装着するとよい。 In the present embodiment, the region between the pair of first cut portions 7 is the region where the binding material is to be mounted. When binding the coil and the protective material 1 with the binding material, it is preferable to attach the binding material between the pair of first cut portions 7.

第1切込み部7は、外周端部2または内周端部3を切込みの一端とした場合に、本体部4の径方向から本体部4の周方向に向けて曲げられた切込みとされている。すなわち、第1切込み部7は、切込みの一端側では本体部4の径方向に沿って切込まれているが、切込みの他端側では本体部4の周方向に向かうように切込まれている。一端と他端との間では切込みが曲げられている。また、第1切込み部7は、切込みの他端側に向かうにつれて、結束材装着予定領域6から離れる方向に切込まれている。 The first cut portion 7 is a cut that is bent from the radial direction of the main body portion 4 toward the circumferential direction of the main body portion 4 when the outer peripheral end portion 2 or the inner peripheral end portion 3 is used as one end of the cut. .. That is, the first cut portion 7 is cut along the radial direction of the main body portion 4 on one end side of the cut, but is cut so as to be directed toward the circumferential direction of the main body portion 4 on the other end side of the cut. There is. The notch is bent between one end and the other end. Further, the first cut portion 7 is cut in a direction away from the binding material mounting area 6 toward the other end side of the cut.

結束材装着予定領域6の内周端部3及び外周端部2にそれぞれ、一対の第1切込み部7が設けられることによって、本体部4に対して容易に曲げられるようになっている。本実施形態では、一対の第1切込み部7の間に位置する内周端部3及び外周端部2を、折曲げ片Mと言う場合がある。 A pair of first cut portions 7 are provided at the inner peripheral end portion 3 and the outer peripheral end portion 2 of the binding material mounting area 6, so that the binding material can be easily bent with respect to the main body portion 4. In the present embodiment, the inner peripheral end portion 3 and the outer peripheral end portion 2 located between the pair of first cut portions 7 may be referred to as a bent piece M.

また、図1及び図2に示すように、結束材装着予定領域6の外側の内周端部3及び外周端部2のそれぞれには、一対の第2切込み部8が設けられている。一対の第2切込み部8の間に結束材装着予定領域6が位置する。すなわち、内周端部3側の一対の第2切込み部8は、結束材装着予定領域6の周方向両側に設けられており、また、外周端部2側の一対の第2切込み部8も、結束材装着予定領域6の周方向両側に設けられている。更に、第2切込み部8は、結束材装着予定領域6に対して第1切込み部7よりも離れた位置にある。 Further, as shown in FIGS. 1 and 2, a pair of second cut portions 8 are provided in each of the inner peripheral end portion 3 and the outer peripheral end portion 2 on the outer side of the binding material mounting area 6. The binding material mounting area 6 is located between the pair of second notches 8. That is, the pair of second cut portions 8 on the inner peripheral end portion 3 side are provided on both sides in the circumferential direction of the binding material mounting area 6, and the pair of second cut portions 8 on the outer peripheral end portion 2 side are also provided. , The binding material is provided on both sides of the planned mounting area 6 in the circumferential direction. Further, the second cut portion 8 is located at a position farther from the first cut portion 7 with respect to the binding material mounting area 6.

第2切込み部8は、第1切込み部7と同様に、本体部4の内周端部3及び外周端部2をそれぞれ切込みの一端として本体部4に設けられた切れ込みであり、本体部4の厚み方向全部が切込まれている。また、第2切込み部8は、本体部4に設定された全ての結束材装着予定領域6の外側にそれぞれ設けられている。図1に示す例では、内周端部3に8つの(4対の)第2切込み部8が設けられ、外周端部2にも8つの(4対の)第2切込み部8が設けられている。 The second cut portion 8 is a notch provided in the main body portion 4 with the inner peripheral end portion 3 and the outer peripheral end portion 2 of the main body portion 4 as one end of the cut, respectively, like the first cut portion 7. All in the thickness direction of is cut. Further, the second notch portion 8 is provided on the outside of all the binding material mounting areas 6 set in the main body portion 4. In the example shown in FIG. 1, eight (4 pairs) second cuts 8 are provided at the inner peripheral end portion 3, and eight (4 pairs) second cut portions 8 are also provided at the outer peripheral end portion 2. ing.

第2切込み部8は、外周端部2または内周端部3を一端とした場合に、本体部4の径方向に沿った切込みとされている。 The second cut portion 8 is a cut along the radial direction of the main body portion 4 when the outer peripheral end portion 2 or the inner peripheral end portion 3 is used as one end.

ここで、内周端部3の第2切込み部8と外周端部2の第2切込み部8の位置関係について説明する。外周端部2に設けた第2切込み部8の位置は、内周端部3に設けた第2切込み部8の位置に対して、本体部4の径方向の延長線上から外れた位置にある。すなわち、外周端部2の第2切込み部8は、内周端部3の第2切込み部8から見た場合に、本体部4の径方向の延長線にはなく、延長線上から外れた位置にある。同様に、内周端部3の第2切込み部8は、外周端部2の第2切込み部8から見た場合に、本体部4の径方向の延長線にはなく、延長線上から外れた位置にある。 Here, the positional relationship between the second cut portion 8 of the inner peripheral end portion 3 and the second cut portion 8 of the outer peripheral end portion 2 will be described. The position of the second cut portion 8 provided at the outer peripheral end portion 2 is located outside the radial extension line of the main body portion 4 with respect to the position of the second cut portion 8 provided at the inner peripheral end portion 3. .. That is, the second cut portion 8 of the outer peripheral end portion 2 is not in the radial extension line of the main body portion 4 when viewed from the second cut portion 8 of the inner peripheral end portion 3, and is located at a position deviated from the extension line. It is in. Similarly, the second cut portion 8 of the inner peripheral end portion 3 is not on the radial extension line of the main body portion 4 when viewed from the second cut portion 8 of the outer peripheral end portion 2, and is off the extension line. In position.

また、図1に示すように、本体部4の内周端部3には、位置ずれ防止のための第1切り欠き部21が設けられている。第1切り欠き部21は、本体部4の結束材装着予定領域6の間に設けられている。第1切り欠き部21には、後述するように、コイル11の吊り具と係合するようになっている。 Further, as shown in FIG. 1, the inner peripheral end portion 3 of the main body portion 4 is provided with a first notch portion 21 for preventing misalignment. The first notch portion 21 is provided between the binding material mounting area 6 of the main body portion 4. The first notch 21 is adapted to engage with the hanger of the coil 11, as will be described later.

また、図1に示すように、本体部4の外周端部2には、位置ずれ防止のための第2切り欠き部22が設けられている。図1に示す例では、2つの第2切り欠き部22が並設されている。第2切り欠き部22は、本体部4の結束材装着予定領域6の間に設けられている。また、第2切り欠き部22は、本体部4の中心に対して第1切り欠き部21の反対側に設けられている。第2切り欠き部22には、後述するように、コイル11の昇降台と係合するようになっている。 Further, as shown in FIG. 1, the outer peripheral end portion 2 of the main body portion 4 is provided with a second notch portion 22 for preventing misalignment. In the example shown in FIG. 1, two second notch portions 22 are arranged side by side. The second notch portion 22 is provided between the binding material mounting area 6 of the main body portion 4. Further, the second notch portion 22 is provided on the opposite side of the first notch portion 21 with respect to the center of the main body portion 4. The second notch 22 is adapted to engage with the lift of the coil 11, as will be described later.

次に、図3~図6を参照しつつ、本実施形態のコイル結束方法について説明する。図3~図6は、本実施形態のコイル結束方法を説明する図であって、それぞれ(a)が側面図であり、(b)が正面図である。本実施形態のコイル結束方法は、金属線材が巻回されてなるコイル11の側面部11aに、本実施形態に係る保護材1を配置する配置段階と、保護材1の結束材装着予定領域6に帯状の結束材5が装着されるように、結束材5によって保護材1とコイル11とを結束する結束段階と、を備える。 Next, the coil bundling method of the present embodiment will be described with reference to FIGS. 3 to 6. 3 to 6 are views for explaining the coil bundling method of the present embodiment, in which FIG. 3A is a side view and FIG. 6B is a front view. The coil binding method of the present embodiment includes an arrangement step of arranging the protective material 1 according to the present embodiment on the side surface portion 11a of the coil 11 formed by winding a metal wire, and a region 6 where the protective material 1 is to be mounted. A binding step of binding the protective material 1 and the coil 11 by the binding material 5 is provided so that the band-shaped binding material 5 is attached to the body.

まず、図3に示すように、配置段階として、金属線材からなるコイル11を用意し、コイル11の両側に本実施形態に係る保護材1を配置する。金属線材は、例えば、鋼線材やステンレス鋼線材であってもよく、その他の非鉄金属からなる金属線材であってもよい。また、金属線材は、熱間圧延によって製造されたものでもよく、冷間圧延によって製造されたものでもよく、その他の工程を経て得られたものでもよく、最終検査工程を経た出荷前の製品としての金属線材でもよい。 First, as shown in FIG. 3, as an arrangement step, a coil 11 made of a metal wire is prepared, and the protective material 1 according to the present embodiment is arranged on both sides of the coil 11. The metal wire may be, for example, a steel wire or a stainless steel wire, or may be a metal wire made of another non-ferrous metal. Further, the metal wire may be manufactured by hot rolling, cold rolling, or obtained through other processes, and may be used as a pre-shipment product that has undergone a final inspection process. Metal wire may be used.

コイル11は、長尺の金属線材を巻回することによって形成される。コイル11は、金属線材が何周にも巻回されてなるものであって、環状の金属線材の束によって構成されるが、本実施形態では金属線材の詳細な図示は省略し、金属線材が束にされてなるコイル11の外形を模式的に図面に示している。金属線材からなるコイル11は、その外観において、側面部11aと中空部11bを有する。側面部11aは、中空部11bの延在方向からコイル11を見た場合に金属線材が束になってリング状に見える部分をいう。側面部11aは、複数の金属線材が連なってなる束の表面から構成される。 The coil 11 is formed by winding a long metal wire. The coil 11 is formed by winding a metal wire many times around it, and is composed of a bundle of annular metal wires. However, in the present embodiment, detailed illustration of the metal wire is omitted, and the metal wire is used. The outer shape of the bundled coils 11 is schematically shown in the drawing. The coil 11 made of a metal wire has a side surface portion 11a and a hollow portion 11b in its appearance. The side surface portion 11a is a portion in which the metal wires are bundled and look like a ring when the coil 11 is viewed from the extending direction of the hollow portion 11b. The side surface portion 11a is composed of the surface of a bundle in which a plurality of metal wires are connected.

図3に示すように、保護材1は、金属線材からなるコイル11の側面部11aに対向するように配置する。保護材1をコイル11に配置する際には、コイル11の側面部11aが保護材1の本体部4に覆われるように、かつ、コイル11の中空部11bと保護材1の貫通孔4aとが連通するように位置合わせする。また、保護材1は、第1切り欠き部21が上方に配置されるように向きを調整する。 As shown in FIG. 3, the protective material 1 is arranged so as to face the side surface portion 11a of the coil 11 made of a metal wire. When the protective material 1 is arranged in the coil 11, the side surface portion 11a of the coil 11 is covered with the main body portion 4 of the protective material 1, and the hollow portion 11b of the coil 11 and the through hole 4a of the protective material 1 are formed. Align so that they communicate with each other. Further, the orientation of the protective material 1 is adjusted so that the first notch portion 21 is arranged upward.

次に、図4に示すように、アーム状の吊り具31によってコイル11及び保護材1を吊り上げる。吊り具31は、図4に示すように、コイル11の中空部11b及び保護材1の貫通孔4aに挿入し、コイル11を保護材1とともに吊り上げる。この際、保護材1の第1切り欠き部21を吊り具31に挿入させる。吊り上げ中に、吊り具31によって保護材1の回転が規制されることで、保護材1がコイル11に対して位置決めされる。 Next, as shown in FIG. 4, the coil 11 and the protective material 1 are lifted by the arm-shaped hanger 31. As shown in FIG. 4, the hanger 31 is inserted into the hollow portion 11b of the coil 11 and the through hole 4a of the protective material 1, and the coil 11 is lifted together with the protective material 1. At this time, the first notch 21 of the protective material 1 is inserted into the hanger 31. During lifting, the hanger 31 regulates the rotation of the protective material 1, so that the protective material 1 is positioned with respect to the coil 11.

次に、図5に示すように、吊り具31によってコイル11及び保護材1を吊り上げた状態から、コイル11の下方より昇降台32を上昇させる。図5に示す昇降台32は2本のアーム32aを備えており、2本のアーム32aの間にコイル11を載せる。この際、保護材1の本体部4の外周端部2に設けられた第2切り欠き部22が、昇降台32の2本のアーム32aに挿入される。更に昇降台32を上昇させて、吊り具31による吊り上げ状態を解消する。更に、図5(a)の図中左右両側から図示略の加圧板によってコイル11の両側を押すことで、中空部11bの延在方向に沿ってコイル11を圧縮して金属線材を緊密に束ねて、コイル11の外形を整える。コイル11の外形を整えることで、この後の工程でコイル11及び保護材1を結束材5で結束する際に、結束材5に弛みが生じないように結束させることが可能になる。 Next, as shown in FIG. 5, the elevating table 32 is raised from below the coil 11 from the state where the coil 11 and the protective material 1 are lifted by the hanger 31. The elevating table 32 shown in FIG. 5 includes two arms 32a, and the coil 11 is placed between the two arms 32a. At this time, the second notch portion 22 provided at the outer peripheral end portion 2 of the main body portion 4 of the protective material 1 is inserted into the two arms 32a of the elevating table 32. Further, the elevating table 32 is raised to eliminate the lifting state by the hanger 31. Further, by pushing both sides of the coil 11 from the left and right sides in the figure of FIG. 5A with a pressure plate (not shown), the coil 11 is compressed along the extending direction of the hollow portion 11b and the metal wires are tightly bundled. Then, the outer shape of the coil 11 is adjusted. By adjusting the outer shape of the coil 11, it becomes possible to bind the coil 11 and the protective material 1 so that the binding material 5 does not loosen when the coil 11 and the protective material 1 are bound by the binding material 5 in a subsequent step.

次に、図6に示すように、結束段階として、コイル11及び保護材1を昇降台32に載せたまま、かつ、図示略の加圧板によりコイル11を圧縮したまま、帯状の結束材5によってコイル11及び保護材1を結束する。結束材5は、コイル11の外周面11c上をコイル11の軸方向に沿うように、また、コイル11の中空部11bの内周面11d上を軸方向に沿うように、更にコイル11両側の保護材1の結束材装着予定領域6上を通過するようにしてコイル11に沿わせる。このようにして、4つの結束材5によってコイル11及び保護材1を結束する。保護材1は、コイル11の側面部11aを覆った状態で結束材5によりコイル11に固定される。また、コイル11を構成する金属線材は、結束材5によって緊密に束ねられるため、その後に加圧板が取り除かれてもコイル11の外形がそのまま維持される。 Next, as shown in FIG. 6, as a binding step, the coil 11 and the protective material 1 are placed on the elevating table 32, and the coil 11 is compressed by the pressure plate (not shown), and the band-shaped binding material 5 is used. The coil 11 and the protective material 1 are bound together. The binding material 5 is provided on both sides of the coil 11 so as to be along the axial direction of the coil 11 on the outer peripheral surface 11c of the coil 11 and along the axial direction on the inner peripheral surface 11d of the hollow portion 11b of the coil 11. Along the coil 11 so as to pass over the binding material mounting area 6 of the protective material 1. In this way, the coil 11 and the protective material 1 are bound by the four binding materials 5. The protective material 1 is fixed to the coil 11 by the binding material 5 in a state of covering the side surface portion 11a of the coil 11. Further, since the metal wire constituting the coil 11 is tightly bundled by the binding material 5, the outer shape of the coil 11 is maintained as it is even if the pressure plate is subsequently removed.

図7及び図8には、結束材5によって結束されたコイル結束体40を示す。コイル結束体40は、金属線材が巻回されてなるコイル11と、コイル11の側面部11aに配置された保護材1と、保護材1の結束材装着予定領域6に装着されるように、保護材1及びコイル11を結束する帯状の結束材5とから構成される。 7 and 8 show the coil binding body 40 bound by the binding material 5. The coil binding body 40 is mounted on the coil 11 formed by winding a metal wire, the protective material 1 arranged on the side surface portion 11a of the coil 11, and the binding material mounting area 6 of the protective material 1. It is composed of a protective material 1 and a band-shaped binding material 5 that binds the coil 11.

結束材5は、コイル11の外周面11c上をコイル11の軸方向に沿わされ、コイル11の中空部11bの内周面11d上を軸方向に沿わされ、更にコイル11両側の保護材1の結束材装着予定領域6上に沿わされる。保護材1は、コイル11の側面部11aを覆うように固定される。また、保護材1の結束材装着予定領域6に設けられた一対の第1切込み部7は、結束材5の装着によって切込みが広げられ、一対の第1切込み部7の間に設けられた折り曲げ片Mがコイル11側に折り曲げられる。一対の第1切込み部7が設けられることで、本体部4に亀裂を生じさせずに、結束材装着予定領域6にある外周端部2及び内周端部3をコイル11側に容易に折り曲げてコイル11に沿わせることが出来、保護材1の破損を防止できる。また、保護材1によってコイル11の側面部11aを保護し、側面部11aにおける疵発生を防止できる。 The binding material 5 is along the axial direction of the coil 11 on the outer peripheral surface 11c of the coil 11, is along the axial direction on the inner peripheral surface 11d of the hollow portion 11b of the coil 11, and is further along the protective material 1 on both sides of the coil 11. It is along the area 6 where the binding material is to be mounted. The protective material 1 is fixed so as to cover the side surface portion 11a of the coil 11. Further, the pair of first notches 7 provided in the binding material mounting area 6 of the protective material 1 is widened by mounting the binding material 5, and is bent between the pair of first notches 7. One piece M is bent toward the coil 11. By providing the pair of first notch portions 7, the outer peripheral end portion 2 and the inner peripheral end portion 3 in the binding material mounting area 6 can be easily bent toward the coil 11 without causing cracks in the main body portion 4. The coil 11 can be aligned with the coil 11 to prevent damage to the protective material 1. Further, the protective material 1 can protect the side surface portion 11a of the coil 11 and prevent the occurrence of defects on the side surface portion 11a.

以下、図面を参照して本実施形態の保護材1の効果を更に詳細に説明する。
図9には、第1切込み部7と結束材5との位置関係を示す。保護材1及びコイル11を結束材5によって結束する結束段階において、保護材1の結束材装着予定領域6に結束材5が装着されるように結束材5の位置を調整するが、図9の(A)及び(B)に示すように、帯状の結束材5の幅方向の端部5aが、第1切込み部7の近くに位置する場合がある。結束材5の幅方向の端部5aが第1切込み部7の近くに位置したまま、結束材5によって保護材1が締め付けられると、結束材5の端部5aがナイフエッジのように作用して、第1切込み部7を起点にして本体部4に亀裂Kが発生する場合がある。
Hereinafter, the effect of the protective material 1 of the present embodiment will be described in more detail with reference to the drawings.
FIG. 9 shows the positional relationship between the first notch 7 and the binding material 5. In the binding step of binding the protective material 1 and the coil 11 with the binding material 5, the position of the binding material 5 is adjusted so that the binding material 5 is mounted in the binding material mounting area 6 of the protective material 1, but FIG. As shown in (A) and (B), the widthwise end portion 5a of the band-shaped binding member 5 may be located near the first notch portion 7. When the protective material 1 is tightened by the binding material 5 while the widthwise end 5a of the binding material 5 is located near the first notch 7, the end 5a of the binding material 5 acts like a knife edge. Therefore, a crack K may occur in the main body portion 4 starting from the first cut portion 7.

ここで、図9の(A)に示すように、第1切込み部7を、内周端部3及び外周端部2を切込みの一端とした場合に、本体部4の径方向を向くように切り込みを設けたものとした場合には、亀裂Kの進展方向が本体部4の径方向に誘導され、本体部4を破断するおそれがある。 Here, as shown in FIG. 9A, the first cut portion 7 faces the radial direction of the main body portion 4 when the inner peripheral end portion 3 and the outer peripheral end portion 2 are used as one end of the cut. If a notch is provided, the growth direction of the crack K is guided in the radial direction of the main body portion 4, and the main body portion 4 may be broken.

一方、本実施形態に係る第1切込み部7は、図9の(B)に示すように、内周端部3及び外周端部2を切込みの一端とした場合に、本体部4の径方向から本体部4の周方向に向けて曲げられた切込みであるので、結束材5の装着によって第1切込み部7を起点とする亀裂Kが本体部4に生じたとしても、亀裂Kの伝搬方向が本体部4の周方向に誘導されるようになり、本体部4の径方向に沿って亀裂Kが生じるおそれがなく、本体部4の破断を防止することができる。 On the other hand, as shown in FIG. 9B, the first notch portion 7 according to the present embodiment has the radial direction of the main body portion 4 when the inner peripheral end portion 3 and the outer peripheral end portion 2 are used as one end of the notch. Since the notch is bent toward the circumferential direction of the main body portion 4, even if a crack K originating from the first notch portion 7 is generated in the main body portion 4 due to the attachment of the binding material 5, the propagation direction of the crack K Is guided in the circumferential direction of the main body portion 4, there is no possibility that a crack K is generated along the radial direction of the main body portion 4, and the breakage of the main body portion 4 can be prevented.

また、図10に示すように、第1切込み部7が、切れ込みの一端から他端側に向かうにつれて、結束材装着予定領域6に近づく方向に切れ込まれた場合は、第1切込み部7の切込みの終端と結束材5とが重なってしまい、結束材5が障害になって亀裂Kを本体部4の周方向に誘導できなくなる場合がある。従って、第1切込み部7は、切れ込みの他端側に向かうにつれて、結束材装着予定領域6から離れる方向に切れ込んだものとすることがより好ましくなる。 Further, as shown in FIG. 10, when the first cut portion 7 is cut in the direction approaching the binding material mounting planned area 6 from one end of the cut toward the other end side, the first cut portion 7 is used. The end of the cut and the binding material 5 may overlap with each other, and the binding material 5 may become an obstacle so that the crack K cannot be guided in the circumferential direction of the main body portion 4. Therefore, it is more preferable that the first cut portion 7 is cut in a direction away from the binding material mounting area 6 toward the other end side of the cut.

次に、結束材装着予定領域6の外側に第2切込み部8を設けることで、結束材5の装着位置が結束材装着予定領域6から外れてしまった場合でも、第2切込み部8と第1切込み部7との間において外周端部2及び内周端部3がコイル11側に沿うように曲げられるので、本体部4に亀裂Kを生じさせるおそれが少なくなり、保護材1の破損が防止される。 Next, by providing the second notch 8 on the outside of the binding material mounting area 6, even if the mounting position of the binding material 5 deviates from the binding material mounting area 6, the second notch 8 and the second notch 8 are provided. Since the outer peripheral end portion 2 and the inner peripheral end portion 3 are bent along the coil 11 side between the cut portion 7 and the cut portion 7, the possibility of causing a crack K in the main body portion 4 is reduced, and the protective material 1 is damaged. Be prevented.

ここで、図11には、第2切込み部8と結束材5との位置関係を示す。図11の(A)に示すように、結束材5の装着位置が結束材装着予定領域6から外れてしまった場合に、帯状の結束材5の幅方向の端部が、第2切込み部8の近くに位置してしまう場合がある。この場合、図11の(A)に示すように、内周端部3の第2切込み部8と、外周端部2の第2切込み部8とが、本体部4の径方向の延長線上にあると、結束材5によって保護材1が締め付けられて、外周端部2の第2切込み部8と内周端部3の第2切込み部8の両方から亀裂Kが発生した場合に、それぞれの亀裂Kの伝搬方向が本体部4の径方向に誘導され、2つの亀裂Kがついには合致して本体部4が直ちに破断してしまうおそれがある。 Here, FIG. 11 shows the positional relationship between the second notch portion 8 and the binding material 5. As shown in FIG. 11A, when the mounting position of the binding material 5 deviates from the planned mounting area 6 of the binding material, the widthwise end portion of the band-shaped binding material 5 is the second notch portion 8. It may be located near. In this case, as shown in FIG. 11A, the second cut portion 8 of the inner peripheral end portion 3 and the second cut portion 8 of the outer peripheral end portion 2 are on the radial extension line of the main body portion 4. If there is, when the protective material 1 is tightened by the binding material 5 and cracks K are generated from both the second cut portion 8 of the outer peripheral end portion 2 and the second cut portion 8 of the inner peripheral end portion 3, respectively. The propagation direction of the crack K is guided in the radial direction of the main body 4, and the two cracks K may finally meet and the main body 4 may be immediately broken.

一方、本実施形態の保護材1の第2切込み部8は、図11の(B)に示すように、内周端部3の第2切込み部8と外周端部2の第2切込み部8とが、本体部4の径方向の延長線上にないため、内周端部2の第2切込み部8に結束材5が近接して亀裂Kが発生したとしても、外周端部3の第2切込み部8と結束材5とは離れているため亀裂が生じるおそれが低くなり、本体部4の破断が防がれる。また、外周端部2の第2切込み部8と内周端部3の第2切込み部8の両方から亀裂Kが発生し、それぞれの亀裂の伝搬方向が本体部4の径方向に誘導されたとしても、2つの亀裂が合致するおそれは少なく、本体部4の破断が防がれる。 On the other hand, as shown in FIG. 11B, the second cut portion 8 of the protective material 1 of the present embodiment has a second cut portion 8 of the inner peripheral end portion 3 and a second cut portion 8 of the outer peripheral end portion 2. However, since it is not on the radial extension of the main body 4, even if the binding material 5 is close to the second notch 8 of the inner peripheral end 2 and a crack K is generated, the second outer peripheral end 3 is the second. Since the cut portion 8 and the binding material 5 are separated from each other, the possibility of cracking is reduced and the main body portion 4 is prevented from breaking. Further, cracks K were generated from both the second cut portion 8 of the outer peripheral end portion 2 and the second cut portion 8 of the inner peripheral end portion 3, and the propagation direction of each crack was guided in the radial direction of the main body portion 4. Even so, there is little possibility that the two cracks will match, and the main body 4 can be prevented from breaking.

次に、第2切り欠き部22について説明する。先に説明したように、コイル11結束方法の結束段階においては、昇降台32の2本のアーム32aが、保護材1の本体部4の外周端部2に設けた第2切り欠き部22に挿入される。ここで、図12に、保護材1、結束材5及び昇降台32の位置関係を示す。仮に、第2切り欠き部22が設けられなかった場合は、図12の(A)に示すように、結束材5によって保護材1及びコイル11を結束する際に、保護材1が回転して位置ずれが起きてしまい、結束材5が結束材装着予定領域6に装着されなかったり、図12の(B)に示すように、結束材5が結束材装着予定領域6に装着されるものの、第1切込み部7に近い位置に装着されてしまい、第1切込み部7を起点とする亀裂Kが本体部4に生じて、本体部4が破断し、保護材1が破損するおそれがある。 Next, the second notch portion 22 will be described. As described above, in the binding stage of the coil 11 binding method, the two arms 32a of the elevating table 32 are attached to the second notch 22 provided at the outer peripheral end portion 2 of the main body portion 4 of the protective material 1. Will be inserted. Here, FIG. 12 shows the positional relationship between the protective material 1, the binding material 5, and the elevating table 32. If the second notch 22 is not provided, as shown in FIG. 12A, the protective material 1 rotates when the protective material 1 and the coil 11 are bound by the binding material 5. Although the binding material 5 is not mounted in the binding material mounting area 6 due to misalignment, or as shown in FIG. 12B, the binding material 5 is mounted in the binding material mounting planned area 6. It is mounted at a position close to the first cut portion 7, and a crack K starting from the first cut portion 7 may occur in the main body portion 4, the main body portion 4 may be broken, and the protective material 1 may be damaged.

本実施形態では、本体部4の外周端部2に第2切り欠き部22が設けられているので、図12の(C)に示すように、昇降台32の2本のアーム32aに、第2切り欠き部22が挿入されることで、保護材1の位置ずれが防止され、結束材5を結束材装着予定領域6に確実に装着することができ、これにより、保護材1の破損が防止できる。 In the present embodiment, since the second notch portion 22 is provided at the outer peripheral end portion 2 of the main body portion 4, as shown in FIG. 12C, the two arms 32a of the elevating table 32 have a second arm 32a. 2 By inserting the notch portion 22, the position of the protective material 1 is prevented from being displaced, and the binding material 5 can be reliably mounted in the binding material mounting area 6, thereby damaging the protective material 1. Can be prevented.

また、本実施形態では、本体部4の周方向の結束材装着予定領域6の幅について特に制限しないが、保護材1のサイズ(特に本体部4の外周端部2の直径)に対して結束材装着予定領域6の幅が大きくなると、図13に示すように、結束材5による結束時に、本体部4の一部がコイル11の中空部11b側に巻き込まれ、コイル11結束体の荷姿不良が発生するおそれがある。従って、結束材装着予定領域6の幅は適切な範囲に設定することが好ましい。例えば、本体部4の外径が1400mm程度、内径が900mm程度である場合は、結束材装着予定領域6を区画する第1切込み部7同士の幅を150~250mm程度にすることが好ましい。 Further, in the present embodiment, the width of the binding material mounting area 6 in the circumferential direction of the main body portion 4 is not particularly limited, but the binding material 1 is bound with respect to the size of the protective material 1 (particularly the diameter of the outer peripheral end portion 2 of the main body portion 4). When the width of the material mounting area 6 becomes large, as shown in FIG. 13, a part of the main body 4 is caught in the hollow portion 11b side of the coil 11 at the time of binding by the binding material 5, and the packing shape of the coil 11 binding body is increased. Defects may occur. Therefore, it is preferable to set the width of the binding material mounting area 6 to an appropriate range. For example, when the outer diameter of the main body 4 is about 1400 mm and the inner diameter is about 900 mm, it is preferable that the width between the first cut portions 7 for partitioning the binding material mounting area 6 is about 150 to 250 mm.

以上説明したように、本実施形態のコイル結束用の保護材1によれば、結束材装着予定領域6の外周端部2及び内周端部3のそれぞれに、一対の第1切込み部7があらかじめ設けられているので、コイル11及び保護材1を結束するための結束材5が結束材装着予定領域6に装着された際に、一対の第1切込み部7の間の外周端部2及び内周端部3が、結束材5によってコイル11側に容易に曲げられるようになり、これにより、本体部4に亀裂が生じるおそれがなく、保護材1の破損を防止できる。
また、第1切込み部7が、外周端部2または内周端部3を切込みの一端とした場合に、本体部4の径方向から本体部4の周方向に向けて曲げられた切込みであるので、結束材5の装着によって第1切込み部7を起点として本体部4に亀裂が生じたとしても、亀裂の伝搬方向が本体部4の周方向に誘導されるため、本体部4の径方向に沿って亀裂が生じるおそれがなく、本体部4の破断を防止できる。
As described above, according to the protective material 1 for coil bundling of the present embodiment, a pair of first cut portions 7 are provided in each of the outer peripheral end portion 2 and the inner peripheral end portion 3 of the binding material mounting area 6. Since it is provided in advance, when the binding material 5 for binding the coil 11 and the protective material 1 is mounted in the binding material mounting area 6, the outer peripheral end portion 2 between the pair of first cut portions 7 and the outer peripheral end portion 2 The inner peripheral end portion 3 can be easily bent toward the coil 11 by the binding material 5, whereby there is no possibility that the main body portion 4 is cracked and the protective material 1 can be prevented from being damaged.
Further, when the first notch portion 7 has the outer peripheral end portion 2 or the inner peripheral end portion 3 as one end of the notch, the notch is bent from the radial direction of the main body portion 4 toward the circumferential direction of the main body portion 4. Therefore, even if a crack occurs in the main body 4 starting from the first notch 7 due to the attachment of the binding material 5, the propagation direction of the crack is guided in the circumferential direction of the main body 4, so that the radial direction of the main body 4 There is no possibility that cracks will occur along the line, and the main body 4 can be prevented from breaking.

また、本実施形態のコイル11結束用の保護材1によれば、結束材装着予定領域6の外側に、一対の第2切込み部8があらかじめ設けられているので、コイル11及び保護材1を結束するための結束材5が、結束材装着予定領域6から誤って外れて装着されたとしても、第2切込み部8があることで外周端部2及び内周端部3が結束材5によってコイル11側に容易に曲げられ、本体部4に亀裂が生じることがなくこれにより、保護材1の破損を防止できる。 Further, according to the protective material 1 for binding the coil 11 of the present embodiment, the pair of second notches 8 are provided in advance on the outside of the binding material mounting area 6, so that the coil 11 and the protective material 1 are provided. Even if the binding material 5 for binding is mistakenly detached from the binding material mounting area 6 and mounted, the outer peripheral end portion 2 and the inner peripheral end portion 3 are formed by the binding material 5 due to the presence of the second notch portion 8. It is easily bent toward the coil 11 side, and the main body portion 4 is not cracked, whereby damage to the protective material 1 can be prevented.

また、本実施形態のコイル11結束用の保護材1によれば、外周端部2に設けた第2切込み部8の位置が、内周端部3に設けた第2切込み部8の位置に対して、本体部4の径方向の延長線上から外れた位置にあるので、内周端部2の第2切込み部8に結束材5が近接して亀裂が発生したとしても、外周端部3の第2切込み部8と結束材5とは離れているために亀裂が生じるおそれが低くなり、本体部4の破断が防がれる。また、外周端部2の第2切込み部8と内周端部3の第2切込み部8の両方から亀裂Kが発生し、それぞれの亀裂の伝搬方向が本体部4の径方向に誘導されたとしても、2つの亀裂が合致するおそれは少なく、本体部4の破断が防がれる。このように、外周端部2に設けた第2切込み部8の位置が、内周端部3に設けた第2切込み部8の位置に対して、本体部4の径方向の延長線上から外れた位置にあるため、結束材5の装着によって第2切込み部8を起点として本体部4に亀裂が生じたとしても、亀裂が大きく進展するおそれが低く、本体部4の破断を防止できる。 Further, according to the protective material 1 for binding the coil 11 of the present embodiment, the position of the second cut portion 8 provided at the outer peripheral end portion 2 is the position of the second cut portion 8 provided at the inner peripheral end portion 3. On the other hand, since it is located off the radial extension line of the main body portion 4, even if the binding material 5 is close to the second cut portion 8 of the inner peripheral end portion 2 and a crack occurs, the outer peripheral end portion 3 Since the second notch portion 8 and the binding material 5 are separated from each other, the possibility of cracking is reduced and the main body portion 4 is prevented from breaking. Further, cracks K were generated from both the second cut portion 8 of the outer peripheral end portion 2 and the second cut portion 8 of the inner peripheral end portion 3, and the propagation direction of each crack was guided in the radial direction of the main body portion 4. Even so, there is little possibility that the two cracks will match, and the main body 4 can be prevented from breaking. In this way, the position of the second cut portion 8 provided at the outer peripheral end portion 2 deviates from the radial extension line of the main body portion 4 with respect to the position of the second cut portion 8 provided at the inner peripheral end portion 3. Even if a crack occurs in the main body 4 starting from the second notch 8 due to the attachment of the binding material 5, there is a low possibility that the crack will grow significantly, and the main body 4 can be prevented from breaking.

また、本実施形態のコイル結束用の保護材1によれば、内周端部3に位置ずれ防止のための第1切り欠き部21が設けられているので、結束材5の装着のためにコイル11の中空部11b及び保護材1のリング状の本体部4に吊り具31を挿入してコイル11と保護材1とを仮固定する際に、吊り具31が第1切り欠き部21に係合し、これにより、コイル11に対して保護材1を適切に位置決めすることができ、結束材装着予定領域6に結束材5を確実に装着することができる。 Further, according to the protective material 1 for coil bundling of the present embodiment, the first notch 21 for preventing misalignment is provided at the inner peripheral end portion 3, so that the bundling material 5 can be attached. When the hanger 31 is inserted into the hollow portion 11b of the coil 11 and the ring-shaped main body 4 of the protective material 1 to temporarily fix the coil 11 and the protective material 1, the hanger 31 is inserted into the first notch 21. By engaging, the protective material 1 can be appropriately positioned with respect to the coil 11, and the binding material 5 can be reliably mounted in the binding material mounting area 6.

また、本実施形態のコイル結束用の保護材1によれば、外周端部2に位置ずれ防止のための第2切り欠き部22が設けられているので、結束材5の装着のためにコイル11及び保護材1を昇降台32上に載置した際に、昇降台32の一部が第2切り欠き部22に係合し、これにより、コイル11に対して保護材1が適切な位置決めされたまま、結束材装着予定領域6に結束材5を確実に装着することができる。 Further, according to the protective material 1 for coil bundling of the present embodiment, since the second notch 22 for preventing the misalignment is provided at the outer peripheral end portion 2, the coil is provided for mounting the bundling material 5. When the 11 and the protective material 1 are placed on the elevating table 32, a part of the elevating table 32 engages with the second notch portion 22, whereby the protective material 1 is appropriately positioned with respect to the coil 11. The binding material 5 can be reliably mounted in the binding material mounting area 6 while the binding material is being mounted.

次に、本実施形態のコイル11結束方法によれば、金属線材が巻回されてなるコイル11の側面部11aに保護材1を配置した上で、結束材装着予定領域6に帯状の結束材5が装着されるように、結束材5によって保護材1とコイル11とを結束するので、結束の際に保護材1の破損を防止することができる。 Next, according to the coil 11 binding method of the present embodiment, the protective material 1 is placed on the side surface portion 11a of the coil 11 formed by winding the metal wire, and then the band-shaped binding material is placed in the binding material mounting area 6. Since the protective material 1 and the coil 11 are bound by the binding material 5 so that the 5 is mounted, it is possible to prevent the protective material 1 from being damaged at the time of binding.

次に、本実施形態のコイル結束体40によれば、保護材1の破損箇所が少ないため、保護材1によってコイル11の側面部11aを確実に保護することができ、側面部11aの疵の発生を確実に防止できる。 Next, according to the coil bundling body 40 of the present embodiment, since the protective material 1 has few damaged parts, the side surface portion 11a of the coil 11 can be reliably protected by the protective material 1, and the flaws on the side surface portion 11a can be reliably protected. Occurrence can be reliably prevented.

なお、本発明を実施形態により説明したが、上記の実施形態は一例であって、本発明が上記の実施形態に限定されるものではなく、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行ってもよい。 Although the present invention has been described by embodiment, the above embodiment is an example, and the present invention is not limited to the above embodiment, and various omissions are made without departing from the gist of the invention. It may be replaced or changed.

1…保護材(コイル11結束用の保護材1)、2…外周端部、3…内周端部、4…本体部、5…結束材、6…結束材装着予定領域、7…第1切込み部、8…第2切込み部、11…コイル、11a…側面部、21…第1切り欠き部、22…第2切り欠き部、40…コイル結束体。 1 ... Protective material (protective material 1 for binding coil 11), 2 ... outer peripheral end, 3 ... inner peripheral end, 4 ... main body, 5 ... binding material, 6 ... binding material mounting area, 7 ... first Notch, 8 ... 2nd notch, 11 ... Coil, 11a ... Side surface, 21 ... 1st notch, 22 ... 2nd notch, 40 ... Coil bundling.

Claims (7)

金属線材からなるコイルの側面部に装着されるコイル結束用の保護材であって、
外周端部及び内周端部を有するリング状かつ板状の本体部からなり、
前記本体部には、帯状の結束材が装着される複数の結束材装着予定領域が、前記本体部の周方向に沿って相互に間隔を空けて設定され、
前記結束材装着予定領域の前記外周端部及び前記内周端部のそれぞれに、一対の第1切込み部が設けられ、
前記第1切込み部は、前記外周端部または前記内周端部を切込みの一端とした場合に、前記本体部の径方向から前記本体部の周方向に向けて曲げられた切込みである、コイル結束用の保護材。
It is a protective material for coil bundling that is attached to the side surface of a coil made of metal wire.
It consists of a ring-shaped and plate-shaped main body having an outer peripheral end and an inner peripheral end.
In the main body portion, a plurality of binding material mounting areas on which the band-shaped binding material is to be mounted are set at intervals along the circumferential direction of the main body portion.
A pair of first notches are provided in each of the outer peripheral end portion and the inner peripheral end portion of the binding material mounting area.
The first cut portion is a coil that is bent from the radial direction of the main body portion toward the circumferential direction of the main body portion when the outer peripheral end portion or the inner peripheral end portion is used as one end of the cut. Protective material for binding.
前記結束材装着予定領域の外側の前記外周端部及び前記内周端部のそれぞれには、前記結束材装着予定領域の両側に位置する一対の第2切込み部が設けられている、請求項1に記載のコイル結束用の保護材。 Claim 1 is provided with a pair of second notches located on both sides of the binding material mounting area at each of the outer peripheral end portion and the inner peripheral end portion outside the binding material mounting area. Protective material for coil bundling as described in. 前記外周端部に設けた前記第2切込み部の位置が、前記内周端部に設けた前記第2切込み部の位置に対して、前記本体部の径方向の延長線上から外れた位置にある、請求項2に記載のコイル結束用の保護材。 The position of the second cut portion provided at the outer peripheral end portion is located at a position deviated from the radial extension line of the main body portion with respect to the position of the second cut portion provided at the inner peripheral end portion. , The protective material for coil bundling according to claim 2. 前記内周端部に、位置ずれ防止のための第1切り欠き部が設けられている、請求項1乃至請求項3の何れか一項に記載のコイル結束用の保護材。 The protective material for coil bundling according to any one of claims 1 to 3, wherein a first notch for preventing misalignment is provided at the inner peripheral end portion. 前記外周端部に、位置ずれ防止のための第2切り欠き部が、前記本体部の中心に対して前記第1切り欠き部の反対側に設けられている、請求項4に記載のコイル結束用の保護材。 The coil binding according to claim 4, wherein a second notch portion for preventing misalignment is provided at the outer peripheral end portion on the opposite side of the first notch portion with respect to the center of the main body portion. Protective material for. 金属線材が巻回されてなるコイルの側面部に、請求項1乃至請求項5の何れか一項に記載のコイル結束用の保護材を配置する配置段階と、
前記保護材の結束材装着予定領域に帯状の結束材が装着されるように、前記結束材によって前記保護材と前記コイルとを結束する結束段階と、を備える、コイル結束方法。
The arrangement step of arranging the protective material for coil bundling according to any one of claims 1 to 5 on the side surface of the coil around which the metal wire is wound.
A coil binding method comprising a binding step of binding the protective material and the coil by the binding material so that the band-shaped binding material is mounted in the binding material mounting area of the protective material.
金属線材が巻回されてなるコイルと、
前記コイルの側面部に配置された請求項1乃至請求項5の何れか一項に記載のコイル結束用の保護材と、
前記保護材の結束材装着予定領域に装着されるように、前記保護材及び前記コイルを結束する帯状の結束材と、を備えたコイル結束体。
A coil made by winding a metal wire and
The protective material for coil bundling according to any one of claims 1 to 5, which is arranged on the side surface portion of the coil.
A coil binding body comprising the protective material and a band-shaped binding material for binding the coil so as to be mounted in the area where the binding material of the protective material is to be mounted.
JP2020208275A 2020-12-16 2020-12-16 Coil binding protection material, coil binding method, and coil binding body Pending JP2022095126A (en)

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