JP2025041208A - Electric wire drum and electric wire with drum - Google Patents

Electric wire drum and electric wire with drum Download PDF

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JP2025041208A
JP2025041208A JP2023148360A JP2023148360A JP2025041208A JP 2025041208 A JP2025041208 A JP 2025041208A JP 2023148360 A JP2023148360 A JP 2023148360A JP 2023148360 A JP2023148360 A JP 2023148360A JP 2025041208 A JP2025041208 A JP 2025041208A
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electric wire
drum
gripping
wire drum
body portion
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悠平 山▲崎▼
Yuhei Yamazaki
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Yazaki Energy System Corp
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Yazaki Energy System Corp
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Abstract

To provide an electric wire drum suitable for recycle of secondhand electric wire, and an electric wire with a drum around which the electric wire is wound.SOLUTION: An electric drum 1 is provided with a trunk part 10 having a cylindrical outer peripheral surface around which electric wire 2 is to be wound; and a plurality of grip parts 30 extending from the outer peripheral surface toward an outside of the trunk part 10 and arranged so as to be aligned side by side in a circumferential direction of the trunk part 10. For positions where the plurality of grip parts 30 are arranged, an interval LA from one end of the trunk part 10 to the positions and an interval LB from the other end of the trunk part 10 to the positions are different in an axial direction of the trunk part 10.SELECTED DRAWING: Figure 4

Description

本発明は、電線を巻き付けることになる電線ドラム、及び、電線ドラムに電線が巻き付けられたドラム付き電線に関する。 The present invention relates to an electric wire drum on which an electric wire is wound, and a drum-attached electric wire in which an electric wire is wound around the electric wire drum.

従来から、電線の保管や運搬等のための電線ドラムや、電線ドラムに電線が巻き付けられたドラム付き電線が提案されている（例えば、特許文献１を参照）。 Conventionally, electric wire drums for storing and transporting electric wires, and drum-attached electric wires in which electric wires are wound around electric wire drums have been proposed (see, for example, Patent Document 1).

特開２００３－２６７６３３号公報JP 2003-267633 A

一般に、家屋や工場等の建築物に電線を配索する際、新品の電線が巻き付けられた電線ドラムから配索経路に対応した長さの電線が引き出されて切断された後、の配索経路に沿って電線が配置される。これに対し、例えば、屋外の工事現場等に電気設備を設置するための仮設電気工事では、一般に、中古品の電線（以下、中古電線という。）が用いられる。中古電線の保管や運搬にも、電線ドラムが用いられる。中古電線を出来る限り繰り返し再利用するべく、仮設電気工事では、一般に、中古電線の長さが実際の配索経路に対して過剰であっても、中古電線を切断することなく、中古電線の全体が電線ドラムから引き出されて用いられる。このとき、中古電線の長さが過剰であることに起因し、中古電線の一端と他端との間の中間部分が弛んで、その中間部分が地面や工事器具等に接触する場合がある。このような接触に起因して電線の中間部分が損傷しても、損傷した部分を切除すれば、中古電線を再利用すること自体は不可能ではない。しかし、実際には、その切除に伴って中古電線の長さが短くなるため、中古電線の再利用が困難になる。 Generally, when wiring an electric wire in a building such as a house or a factory, a new electric wire is wound around a wire drum, and a length of the electric wire corresponding to the wiring route is pulled out from the wire drum, cut, and then the electric wire is arranged along the wiring route. In contrast, for example, in temporary electrical work for installing electrical equipment at outdoor construction sites, second-hand electric wires (hereinafter referred to as second-hand electric wires) are generally used. Wire drums are also used for storing and transporting second-hand electric wires. In order to reuse second-hand electric wires as many times as possible, in temporary electrical work, the second-hand electric wire is generally pulled out in its entirety from the wire drum without being cut, even if the length of the second-hand electric wire is excessive for the actual wiring route. At this time, the second-hand electric wire may become loose in the middle part between one end and the other end due to the excessive length of the second-hand electric wire, and the middle part may come into contact with the ground, construction equipment, etc. Even if the middle part of the electric wire is damaged due to such contact, it is not impossible to reuse the second-hand electric wire itself by cutting off the damaged part. However, in reality, the length of the used wire is shortened as a result of this cutting, making it difficult to reuse the used wire.

本発明は上記状況に鑑みてなされたもので、その目的は、中古電線を繰り返し再利用することに適した電線ドラム、及び、その電線ドラムに電線が巻き付けられたドラム付き電線を提供することにある。 The present invention was made in consideration of the above situation, and its purpose is to provide an electric wire drum suitable for repeatedly reusing used electric wires, and a drum-attached electric wire in which an electric wire is wound around the electric wire drum.

前述した目的を達成するために、本発明に係る電線ドラム及びドラム付き電線は、以下を特徴としている。 In order to achieve the above-mentioned object, the electric wire drum and electric wire with drum of the present invention have the following features:

電線を巻き付けることになる筒状の外周面を有する胴部と、
前記外周面から前記胴部の外側に向けて延び且つ前記胴部の周方向に並ぶように設けられる複数の把持部と、を備える、
電線ドラムであること。 A body portion having a cylindrical outer peripheral surface around which the electric wire is wound;
A plurality of gripping portions extending from the outer circumferential surface toward the outside of the body portion and arranged in a circumferential direction of the body portion,
It is a drum of electric wire.

前記電線ドラムと、
前記電線ドラムが有する前記胴部の前記外周面に巻き付けられる電線と、を備え、
前記電線は、
前記胴部の軸方向における、前記胴部の一端と前記複数の前記把持部との間、及び、前記胴部の他端と前記複数の前記把持部との間、の双方において、前記外周面に巻き付けられる、
ドラム付き電線であること。 The electric wire drum;
an electric wire wound around the outer circumferential surface of the body portion of the electric wire drum,
The electric wire is
The gripping portion is wound around the outer circumferential surface between one end of the body and the plurality of gripping portions and between the other end of the body and the plurality of gripping portions in the axial direction of the body.
It is a drum-type electric wire.

本発明の電線ドラム及びドラム付き電線によれば、電線ドラムは、筒状の外周面を有する胴部と、胴部の外周面に周方向に並ぶように設けられた複数の把持部と、を備える。そのため、例えば、胴部の一端と複数の把持部が設けられた位置との間（以下、胴部の一端側という。）に、電線（中古電線）の一端から所定の長さの部分を巻き付け、胴部の他端と複数の把持部が設けられた位置との間（以下、胴部の他端側という。）に、電線の残りの部分を巻き付けておけば、仮設電気工事において、電線の一端を配電盤等に向けて引き出すとともに、電線の他端を電気機器等に向けて引き出し、且つ、電線の中間部分を電線ドラムに巻き付けたまま、電線の配索を行うことができる。このとき、例えば、作業者は、把持部を掴んで電線ドラムを回転させることで、容易に電線を電線ドラムから引き出すことができる。更に、例えば、作業者は、電線の一端側の部分と他端側の部分を識別するための目印として把持部を用いることができる。更に、仮設電気工事の完了後、作業者は、把持部を掴んで電線ドラムを回転させることで、容易に電線を電線ドラムに巻き取ることができる。よって、電線の中間部分の損傷を避けながら、電線を仮設電気工事に用いることができる。したがって、本構成の電線ドラムは、中古電線を繰り返し再利用することに適している。 According to the electric wire drum and electric wire with drum of the present invention, the electric wire drum includes a body having a cylindrical outer peripheral surface and a plurality of gripping parts arranged in a circumferential direction on the outer peripheral surface of the body. Therefore, for example, if a predetermined length of one end of an electric wire (used electric wire) is wound between one end of the body and the position where the plurality of gripping parts are provided (hereinafter referred to as the one end side of the body), and the remaining part of the electric wire is wound between the other end of the body and the position where the plurality of gripping parts are provided (hereinafter referred to as the other end side of the body), in temporary electrical work, one end of the electric wire can be pulled out toward a switchboard or the like, and the other end of the electric wire can be pulled out toward an electrical device or the like, and the electric wire can be arranged while the middle part of the electric wire is still wound on the electric wire drum. At this time, for example, a worker can easily pull out the electric wire from the electric wire drum by gripping the gripping parts and rotating the electric wire drum. Furthermore, for example, a worker can use the gripping parts as a mark to distinguish the part on one end side of the electric wire from the part on the other end side. Furthermore, after the temporary electrical work is completed, the worker can easily wind the electric wire onto the electric wire drum by grasping the gripping portion and rotating the electric wire drum. This allows the electric wire to be used for temporary electrical work while avoiding damage to the middle part of the electric wire. Therefore, the electric wire drum of this configuration is suitable for repeatedly reusing used electric wires.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態（以下、「実施形態」という。）を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. The details of the present invention will become clearer by reading the following description of the embodiment of the invention (hereinafter referred to as "embodiment") with reference to the attached drawings.

本実施形態に係る電線ドラムの斜視図である。FIG. 2 is a perspective view of the electric wire drum according to the embodiment. 図１に示す電線ドラムの側面図である。FIG. 2 is a side view of the electric wire drum shown in FIG. 1 . 図２のＡ－Ａ断面図である。This is a cross-sectional view taken along line AA in FIG. 図１に示す電線ドラムに電線が巻き付けられた本実施形態に係るドラム付き電線の側面図である。FIG. 2 is a side view of the drum-attached electric wire according to the present embodiment in which an electric wire is wound around the electric wire drum shown in FIG. 1 . 図４に示すドラム付き電線が仮設電気工事に使用される場合の一例を示す図である。FIG. 5 is a diagram showing an example of a case in which the drum-attached electric wire shown in FIG. 4 is used for temporary electrical work. 第１の変形例に係る電線ドラムにおける図３に対応する図である。FIG. 4 is a view corresponding to FIG. 3 of a wire drum according to a first modified example. 第２の変形例に係る電線ドラムにおける図３に対応する図である。FIG. 5 is a view corresponding to FIG. 3 of a wire drum according to a second modified example. 第３の変形例に係る電線ドラムにおける図２に対応する図である。FIG. 4 is a view corresponding to FIG. 2 of a wire drum according to a third modified example.

＜実施形態＞
以下、図面を参照しながら、本発明の実施形態に係る電線ドラム１（図１等参照）、及び、電線ドラム１に電線２が巻き付けられた本実施形態に係るドラム付き電線３（図４参照）について説明する。本発明の実施形態に係る電線ドラム１及びドラム付き電線３は、典型的には、土木・建築等の工事現場へ電気設備を設置するための仮設電気工事に使用される（図５参照）。 <Embodiment>
Hereinafter, with reference to the drawings, an electric wire drum 1 (see FIG. 1 etc.) according to an embodiment of the present invention and a drum-attached electric wire 3 (see FIG. 4) according to this embodiment in which an electric wire 2 is wound around the electric wire drum 1 will be described. The electric wire drum 1 and the drum-attached electric wire 3 according to the embodiment of the present invention are typically used in temporary electrical work for installing electrical equipment at a construction site such as a civil engineering or building construction site (see FIG. 5).

図１～図３に示すように、電線ドラム１は、円筒状の胴部１０と、胴部１０の軸方向の両端部に取り付けられる一対の円板状の鍔部２０と、胴部１０の外周面から胴部１０の径方向外側に向けて突出し且つ胴部１０の周方向に並ぶように設けられる複数の把持部３０と、を備える。以下、説明の便宜上、胴部１０の軸方向、径方向及び周方向をそれぞれ、単に、「軸方向」、「径方向」及び「周方向」と呼ぶこともある。 As shown in Figures 1 to 3, the electric wire drum 1 comprises a cylindrical body 10, a pair of disk-shaped flanges 20 attached to both axial ends of the body 10, and a plurality of gripping portions 30 that protrude from the outer peripheral surface of the body 10 toward the radial outside of the body 10 and are arranged in a line in the circumferential direction of the body 10. Hereinafter, for convenience of explanation, the axial direction, radial direction, and circumferential direction of the body 10 may be simply referred to as the "axial direction," the "radial direction," and the "circumferential direction," respectively.

胴部１０は、その外周面に電線２が巻き付けられる機能を果たす部材である。胴部１０は、典型的には軽量なプラスチックで構成される。 The body 10 is a member around whose outer periphery the electric wire 2 is wound. The body 10 is typically made of lightweight plastic.

一対の鍔部２０は、胴部１０の軸方向両端の開口を塞ぎ、胴部１０の軸方向両端部から径方向外側に突出し、且つ、着脱可能に、胴部１０の軸方向両端部に同軸的に取り付けられる。鍔部２０は、ドラム付き電線３の搬送時等において、胴部１０の外周面に巻き付けられた電線２が胴部１０の軸方向外側に逸脱することを抑制する機能を果たす。鍔部２０も、典型的には軽量なプラスチックで構成される。各鍔部２０の中心部には、軸方向（板厚方向）に貫通する貫通孔２１が形成されている。貫通孔２１には、電線ドラム１（ドラム付き電線３）を回転可能に支持するスタンド５０の支持軸５１が挿通されることになる（図５参照）。 A pair of flanges 20 close the openings at both axial ends of the body 10, protrude radially outward from both axial ends of the body 10, and are coaxially attached to both axial ends of the body 10 in a detachable manner. The flanges 20 function to prevent the electric wire 2 wound around the outer circumferential surface of the body 10 from escaping axially outward from the body 10 during transportation of the drum-attached electric wire 3, etc. The flanges 20 are also typically made of lightweight plastic. A through hole 21 is formed in the center of each flange 20, penetrating it in the axial direction (plate thickness direction). A support shaft 51 of a stand 50 that rotatably supports the electric wire drum 1 (drum-attached electric wire 3) is inserted into the through hole 21 (see FIG. 5).

複数（本例では、４つ）の把持部３０は、図２及び図３に示すように、胴部１０の外周面の軸方向中央より一端側（図２にて右側）寄りの同じ軸方向位置にて、周方向に等間隔を空けて並ぶように設けられる。以下、胴部１０において、胴部１０の軸方向の一端（図２において右端）から把持部３０が設けられた位置までの軸方向範囲を「一端側領域１０Ａ」と呼び、胴部１０の軸方向の他端（図２において左端）から把持部３０が設けられた位置までの軸方向範囲を「他端側領域１０Ｂ」と呼ぶ。一端側領域１０Ａの軸方向長さＬＡは、他端側領域１０Ｂの軸方向長さＬＢより、小さい（図２参照）。本例では、各把持部３０は、胴部１０の外周面における軸方向に同じ且つ周方向に間隔を空けた一対の位置から径方向外側に延びる一対の棒状の脚部３１と、一対の脚部３１の延出端同士を連結するように周方向に延びる棒状の連結部３２と、で構成されており、略Ｕ字状の形状を有している。把持部３０は、典型的には、強度が高いステンレスで構成される。把持部３０は、電線２を電線ドラム１から引き出す際や巻き取る際に作業者が掴む部位として機能する。把持部３０が略Ｕ字状の形状を有することで、作業者が把持部３０を掴んで電線ドラム１を回転させることが容易になり、電線２を電線ドラム１に巻き取る作業の作業性が向上する。把持部３０は、更に、電線２の一端側領域１０Ａに巻き付けられている部分と他端側領域１０Ｂに巻き付けられている部分とを識別するための目印としても機能し得る。 As shown in Figures 2 and 3, the multiple (four in this example) gripping portions 30 are arranged at equal intervals in the circumferential direction at the same axial position closer to one end side (right side in Figure 2) than the axial center of the outer circumferential surface of the body 10. Hereinafter, in the body 10, the axial range from one axial end of the body 10 (right end in Figure 2) to the position where the gripping portion 30 is provided is referred to as the "one end side region 10A", and the axial range from the other axial end of the body 10 (left end in Figure 2) to the position where the gripping portion 30 is provided is referred to as the "other end side region 10B". The axial length LA of the one end side region 10A is smaller than the axial length LB of the other end side region 10B (see Figure 2). In this example, each gripping portion 30 is composed of a pair of rod-shaped legs 31 extending radially outward from a pair of positions on the outer circumferential surface of the body 10 that are spaced apart from each other in the axial direction, and a rod-shaped connecting portion 32 extending in the circumferential direction so as to connect the extended ends of the pair of legs 31, and has an approximately U-shaped shape. The gripping portion 30 is typically made of stainless steel, which has high strength. The gripping portion 30 functions as a portion that an operator grasps when pulling out or winding the electric wire 2 from the electric wire drum 1. The gripping portion 30 has an approximately U-shaped shape, which makes it easier for an operator to grasp the gripping portion 30 and rotate the electric wire drum 1, improving the workability of winding the electric wire 2 around the electric wire drum 1. The gripping portion 30 can also function as a mark for distinguishing between the part of the electric wire 2 wound around the one end side region 10A and the part of the electric wire 2 wound around the other end side region 10B.

把持部３０は、図３に示すように、一対の脚部３１に対応して胴部１０に形成された一対の貫通孔１１に胴部１０の外周面側から一対の脚部３１を挿通し、胴部１０の内周面側にて留め具４０（例えば、ボルト等）を用いて一対の脚部３１を胴部１０に固定することで、着脱可能に胴部１０に固定されている。留め具４０を用いた把持部３０の胴部１０への固定作業は、胴部１０から鍔部２０を外した状態で、作業者が胴部１０の中空部に手を差し込むことで、容易に実行可能である。胴部１０の外周面からの把持部３０の径方向外側への突出高さＨ２（図２及び図３参照）は、胴部１０の外周面からの鍔部２０の径方向外側への突出高さＨ１（図２参照）より、小さい。更に、把持部３０の突出高さＨ２が、留め具４０による脚部３１の延在方向の固定位置を調整することによって調整可能であるように、把持部３０及び留め具４０が構成されていてもよい。 As shown in FIG. 3, the gripping portion 30 is detachably fixed to the torso 10 by inserting the pair of legs 31 from the outer peripheral surface side of the torso 10 into a pair of through holes 11 formed in the torso 10 corresponding to the pair of legs 31, and fixing the pair of legs 31 to the torso 10 using fasteners 40 (e.g., bolts, etc.) on the inner peripheral surface side of the torso 10. The work of fixing the gripping portion 30 to the torso 10 using the fasteners 40 can be easily performed by an operator inserting his or her hand into the hollow portion of the torso 10 with the flange portion 20 removed from the torso 10. The radially outward protruding height H2 of the gripping portion 30 from the outer peripheral surface of the torso 10 (see FIG. 2 and FIG. 3) is smaller than the radially outward protruding height H1 of the flange portion 20 from the outer peripheral surface of the torso 10 (see FIG. 2). Furthermore, the gripping portion 30 and the fastener 40 may be configured so that the protruding height H2 of the gripping portion 30 can be adjusted by adjusting the fixed position of the fastener 40 in the extension direction of the leg portion 31.

以上の構成を有する電線ドラム１（図１～図３参照）に電線２が巻き付けられることで、ドラム付き電線３が得られる（図４参照）。電線ドラム１に巻き付けられる電線２としては、中古品の電線（以下、中古電線という。）が想定されている。図４に示す例では、電線２は、まず、胴部１０の一端側領域１０Ａの外周面に、一端側領域１０Ａの軸方向の一端から他端（図４にて右端から左端）に向けて、一端側（図４にて右側）からみて時計回りに螺旋状に巻き付けられ（即ち、「一重巻き」され）、次いで、周方向に隣接する一対の把持部３０間の隙間を通過して（跨いで）胴部１０の他端側領域１０Ｂに移行し、他端側領域１０Ｂの外周面に、一端側（図４にて右側）からみて時計回りに多重巻きされる。他端側領域１０Ｂの外周面への多重巻きは、例えば、他端側領域１０Ｂの軸方向の一端から他端（図４にて右端から左端）までの螺旋状の巻き付けと、他端側領域１０Ｂの軸方向の他端から一端（図４にて左端から右端）までの螺旋状の巻き付けとを交互に繰り返すことで、なされる。ここで、一端側領域１０Ａへの電線２の巻きの向きと、他端側領域１０Ｂへの電線２の巻きの向きとが同じ向きとなっているのは、両者の巻きの向きを逆向きとすると、巻きの向きが切り替わる箇所にて電線２に作用する負荷（応力）が過大となる可能性があるためである。 The electric wire 2 is wound around the electric wire drum 1 (see Figs. 1 to 3) having the above configuration, to obtain the drum-attached electric wire 3 (see Fig. 4). A used electric wire (hereinafter referred to as a used electric wire) is assumed as the electric wire 2 wound around the electric wire drum 1. In the example shown in Fig. 4, the electric wire 2 is first spirally wound (i.e., "single-wound") around the outer peripheral surface of the one-end region 10A of the body 10 from one end of the one-end region 10A in the axial direction to the other end (from the right end to the left end in Fig. 4), as viewed from the one-end side (right side in Fig. 4), and then passes through (straddles) the gap between a pair of gripping parts 30 adjacent in the circumferential direction to move to the other-end region 10B of the body 10, and is multiple-wound around the outer peripheral surface of the other-end region 10B in the clockwise direction as viewed from the one-end side (right side in Fig. 4). The multiple windings around the outer periphery of the other end region 10B are performed, for example, by alternately winding in a spiral from one end to the other end of the other end region 10B in the axial direction (from the right end to the left end in FIG. 4) and winding in a spiral from the other end to one end of the other end region 10B in the axial direction (from the left end to the right end in FIG. 4). Here, the winding direction of the electric wire 2 around the one end region 10A and the winding direction of the electric wire 2 around the other end region 10B are the same because if the winding directions were reversed, the load (stress) acting on the electric wire 2 at the point where the winding directions change could be excessive.

上述のように、一端側領域１０Ａの軸方向長さＬＡが他端側領域１０Ｂの軸方向長さＬＢより小さいこと、並びに、一端側領域１０Ａで電線２が一重巻きされ、他端側領域１０Ｂでは電線２が多重巻きされることに起因して、図４に示す例では、一端側領域１０Ａに巻き付けられている電線２の長さが、他端側領域１０Ｂに巻き付けられている電線２の長さより、小さい。一端側領域１０Ａに巻き付けられる電線２の長さは、例えば、仮設電気工事の際に電線ドラム１を配電盤６０（図５参照）の近くに配置して用いる場合を想定して、電線ドラム１と配電盤６０との間を繋ぐための最小限の長さ（典型的には、５ｍ～１０ｍ）に設定される。他端側領域１０Ｂに巻き付けられる電線２の長さは、例えば、仮設電気工事の際に電線ドラム１と電気機器７０との間を繋ぐために必要と想定される長さより十分に大きい長さに設定される。 As described above, the axial length LA of the one end region 10A is smaller than the axial length LB of the other end region 10B, and the electric wire 2 is wound in a single layer in the one end region 10A and in a multiple layer in the other end region 10B. In the example shown in FIG. 4, the length of the electric wire 2 wound in the one end region 10A is smaller than the length of the electric wire 2 wound in the other end region 10B. The length of the electric wire 2 wound in the one end region 10A is set to a minimum length (typically 5 m to 10 m) required to connect the electric wire drum 1 and the switchboard 60, assuming that the electric wire drum 1 is placed near the switchboard 60 (see FIG. 5) during temporary electrical work. The length of the electric wire 2 wound in the other end region 10B is set to a length sufficiently larger than the length required to connect the electric wire drum 1 and the electrical equipment 70 during temporary electrical work.

図４に示すドラム付き電線３は、例えば、図５に示すように、土木・建築等の工事現場へ電気設備を設置するための仮設電気工事に使用される。図５に示す例では、配電盤６０の近くの地面４に置かれたスタンド５０の支持軸５１に電線ドラム１の一対の貫通孔２１が挿通されることで、ドラム付き電線３が、配電盤６０の近くで、スタンド５０に回転可能に支持されている。電線ドラム１の一端側領域１０Ａに巻き付けられている電線２の一端（図５にて右端）が、配電盤６０に向けて引き出されて配電盤６０に接続され、且つ、電線ドラム１の他端側領域１０Ｂに巻き付けられている電線２の他端（図５にて左端）が、電気機器７０に向けて引き出されて電気機器７０に接続されている。配電盤６０は、電線５を介して電柱（図示省略）に設けられた変圧器と電気的に接続されている。これにより、電柱に設けられた変圧器から、電線５、配電盤６０、及び電線２をこの順に介して、電気機器７０に給電される。 The electric wire 3 with drum shown in FIG. 4 is used, for example, in temporary electrical work for installing electrical equipment at a construction site such as civil engineering or building construction, as shown in FIG. 5. In the example shown in FIG. 5, a pair of through holes 21 of the electric wire drum 1 is inserted into the support shaft 51 of the stand 50 placed on the ground 4 near the switchboard 60, so that the electric wire 3 with drum is rotatably supported by the stand 50 near the switchboard 60. One end (the right end in FIG. 5) of the electric wire 2 wound around one end side region 10A of the electric wire drum 1 is pulled out toward the switchboard 60 and connected to the switchboard 60, and the other end (the left end in FIG. 5) of the electric wire 2 wound around the other end side region 10B of the electric wire drum 1 is pulled out toward the electric equipment 70 and connected to the electric equipment 70. The switchboard 60 is electrically connected to a transformer installed on a utility pole (not shown) via the electric wire 5. As a result, power is supplied from the transformer installed on the utility pole to the electrical equipment 70 via the electrical wire 5, the switchboard 60, and the electrical wire 2 in that order.

図５に示す例では、一端側領域１０Ａに巻き付けられている電線２の長さが、電線ドラム１と配電盤６０との間を繋ぐための最小限の長さに設定されているので、電線ドラム１と配電盤６０とを繋ぐ電線２について、その中間部分が大きく弛むことで当該中間部分が地面４や周辺の工事器具等に接触して損傷する事態が発生していない。他端側領域１０Ｂに巻き付けられている電線２の長さは、電線ドラム１と電気機器７０との間を繋ぐために必要と想定される長さより十分に大きい長さに設定されているものの、電線ドラム１と電気機器７０とを繋ぐ電線２の余剰部分が電線ドラム１の他端側領域１０Ｂに巻き付けられたままの状態となっている。このため、電線ドラム１と電気機器７０とを繋ぐ電線２についても、その中間部分が大きく弛むことで当該中間部分が地面４や周辺の工事器具等に接触して損傷する事態が発生していない。更に、他端側領域１０Ｂに巻き付けられている電線２を電気機器７０に向けて引き出すとき、引き出しの途中に電線２が把持部３０が設けられた位置を軸方向にまたぐことで、電線２の引き出しが困難になることが生じにくい。 In the example shown in FIG. 5, the length of the electric wire 2 wound around the one end region 10A is set to the minimum length required to connect the electric wire drum 1 and the switchboard 60, so that the electric wire 2 connecting the electric wire drum 1 and the switchboard 60 does not loosen significantly in its middle portion, causing the middle portion to come into contact with the ground 4 or surrounding construction equipment, etc. and be damaged. The length of the electric wire 2 wound around the other end region 10B is set to a length sufficiently longer than the length assumed to be required to connect the electric wire drum 1 and the electrical equipment 70, but the excess portion of the electric wire 2 connecting the electric wire drum 1 and the electrical equipment 70 remains wound around the other end region 10B of the electric wire drum 1. Therefore, the electric wire 2 connecting the electric wire drum 1 and the electrical equipment 70 does not loosen significantly in its middle portion, causing the middle portion to come into contact with the ground 4 or surrounding construction equipment, etc. and be damaged. Furthermore, when the electric wire 2 wound around the other end region 10B is pulled out toward the electric device 70, the electric wire 2 does not cross the position where the gripping portion 30 is provided in the axial direction during the pulling out, which makes it difficult to pull out the electric wire 2.

仮設電気工事の完了後、作業者は、把持部３０を掴んで電線ドラム1を回転させることで、電線ドラム１と配電盤６０とを繋ぐ電線２を電線ドラム１の一端側領域１０Ａに巻き取り、且つ、電線ドラム１と電気機器７０とを繋ぐ電線２を電線ドラム１の他端側領域１０Ｂに巻き取ることが可能である。よって、電線２の中間部分の地面４や周辺の工事器具等への接触に起因する損傷を避けながら、電線２を仮設電気工事に用いることができる。 After the temporary electrical work is completed, the worker can grasp the gripping portion 30 and rotate the electric wire drum 1 to wind the electric wire 2 connecting the electric wire drum 1 and the switchboard 60 onto one end side area 10A of the electric wire drum 1, and wind the electric wire 2 connecting the electric wire drum 1 and the electrical equipment 70 onto the other end side area 10B of the electric wire drum 1. This allows the electric wire 2 to be used for temporary electrical work while avoiding damage to the middle part of the electric wire 2 caused by contact with the ground 4 or surrounding construction equipment, etc.

（本実施形態の主要な効果）
以上、本実施形態に係る電線ドラム１及びドラム付き電線３によれば、筒状の胴部１０と、胴部１０の外周面に周方向に並ぶように設けられた複数の把持部３０と、を備える。そのため、例えば、胴部１０の一端と把持部３０が設けられた位置との間（一端側領域１０Ａ）に、電線２（中古電線）の一端から所定の長さの部分を巻き付け、電線２の残りの部分を、胴部１０の他端と把持部３０が設けられた位置との間（他端側領域１０Ｂ）に巻き付けておけば、仮設電気工事において、電線２の一端を配電盤６０等に向けて引き出すとともに、電線２の他端を電気機器７０等に向けて引き出して、電線２の中間部分を電線ドラム１に巻き付けたまま、電線２の配索を行うことができる。このとき、作業者は、電線２の一端側領域１０Ａに巻き付けられている部分と他端側領域１０Ｂに巻き付けられている部分とを識別するための目印として把持部３０を用いることができる。更に、仮設電気工事の完了後、作業者は、把持部３０を掴んで電線ドラム１を回転させることで、容易に電線２を電線ドラム１に巻き取ることができる。よって、電線２の中間部分の損傷を避けながら、電線２を仮設電気工事に用いることができる。したがって、本実施形態に係る電線ドラム１及びドラム付き電線３は、中古電線を繰り返し再利用することに適している。 (Main Effects of the Present Embodiment)
As described above, the electric wire drum 1 and the drum-attached electric wire 3 according to the present embodiment include a cylindrical body 10 and a plurality of gripping parts 30 arranged in a circumferential direction on the outer circumferential surface of the body 10. Therefore, for example, if a predetermined length of one end of the electric wire 2 (used electric wire) is wound between one end of the body 10 and the position where the gripping parts 30 are provided (one end side region 10A) and the remaining part of the electric wire 2 is wound between the other end of the body 10 and the position where the gripping parts 30 are provided (the other end side region 10B), then in temporary electrical work, one end of the electric wire 2 can be pulled out toward a switchboard 60 or the like and the other end of the electric wire 2 can be pulled out toward an electric device 70 or the like, and the electric wire 2 can be arranged while keeping the middle part of the electric wire 2 wound around the electric wire drum 1. At this time, the worker can use the gripping portion 30 as a mark for distinguishing between the portion wound around the one end region 10A of the electric wire 2 and the portion wound around the other end region 10B. Furthermore, after the temporary electrical work is completed, the worker can easily wind the electric wire 2 around the electric wire drum 1 by gripping the gripping portion 30 and rotating the electric wire drum 1. Thus, the electric wire 2 can be used for the temporary electrical work while avoiding damage to the middle portion of the electric wire 2. Therefore, the electric wire drum 1 and the electric wire 3 with the drum according to this embodiment are suitable for repeatedly reusing used electric wires.

更に、胴部１０の一端側領域１０Ａの軸方向長さＬＡが、胴部１０の他端側領域１０Ｂの軸方向長さＬＢより小さく、且つ、一端側領域１０Ａに巻き付けられている電線２の長さが、他端側領域１０Ｂに巻き付けられている電線２の長さより、小さい。そのため、例えば、電線ドラム1を配電盤６０等の近くに配置して用いる場合、電線ドラム1と配電盤６０等との間を繋ぐための最小限の長さの電線２を、胴部１０の一端側領域１０Ａに巻き付け、残りの十分に長い電線２を胴部１０の他端側領域１０Ｂに巻き付けるように、電線ドラム1を用いることができる。これにより、残りの電線２を電線ドラム１から電気機器７０等に向けて引き出すとき、引き出しの途中に電線２が把持部３０が設けられた位置をまたぐことで、電線２の引き出しが困難になることが生じにくい。よって、電線ドラム１を用いた配索作業の作業性が向上する。 Furthermore, the axial length LA of the one end side region 10A of the body 10 is smaller than the axial length LB of the other end side region 10B of the body 10, and the length of the electric wire 2 wound around the one end side region 10A is smaller than the length of the electric wire 2 wound around the other end side region 10B. Therefore, for example, when the electric wire drum 1 is placed near a switchboard 60 or the like, the electric wire drum 1 can be used so that the minimum length of the electric wire 2 required to connect the electric wire drum 1 and the switchboard 60 or the like is wound around the one end side region 10A of the body 10, and the remaining sufficiently long electric wire 2 is wound around the other end side region 10B of the body 10. As a result, when the remaining electric wire 2 is pulled out from the electric wire drum 1 toward an electric device 70 or the like, it is unlikely that the electric wire 2 will straddle the position where the gripping portion 30 is provided during the pulling out, making it difficult to pull out the electric wire 2. Therefore, the workability of the wiring work using the electric wire drum 1 is improved.

更に、把持部３０が、一対の脚部３１と、一対の脚部３１同士を連結する連結部３２と、を有する。即ち、把持部３０がＵ字状の形状を有する。これにより、作業者が把持部３０を掴んで電線ドラム1を回転させることが容易になり、電線２を電線ドラム１に巻き取る作業の作業性が向上する。
＜他の形態＞
なお、本発明は上記各実施形態に限定されることはなく、本発明の範囲内において種々の変形例を採用することができる。例えば、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。 Furthermore, the gripping portion 30 has a pair of legs 31 and a connecting portion 32 that connects the pair of legs 31 to each other. That is, the gripping portion 30 has a U-shape. This makes it easier for an operator to grasp the gripping portion 30 and rotate the electric wire drum 1, improving the workability of winding the electric wire 2 onto the electric wire drum 1.
<Other forms>
The present invention is not limited to the above-described embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the above-described embodiments, and appropriate modifications, improvements, etc. are possible. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiments are arbitrary as long as the present invention can be achieved, and are not limited.

例えば、上記実施形態では、複数の把持部３０の突出高さＨ２が全て同じである（図３参照）。これに対し、図６に示すように、複数の把持部３０のうちの一部の把持部３０Ａの突出高さＨ２と、複数の把持部３０のうちの前記一部以外の把持部３０Ｂの突出高さＨ２とが異なっていてもよい。これにより、電線ドラム１に巻き付ける電線２が短い場合には、把持部３０Ａ及び把持部３０Ｂの双方を電線２の巻き取りに用い、電線２が長い場合には、把持部３０Ａ及び把持部３０Ｂのうちの突出高さＨ２が高い把持部３０Ｂのみを電線２の巻き取りに用いることができる。全ての把持部３０の突出高さＨ２を必要以上に高くする場合に比べ、電線ドラム1の重量やコストを低減できる。 For example, in the above embodiment, the protruding heights H2 of the multiple gripping parts 30 are all the same (see FIG. 3). In contrast, as shown in FIG. 6, the protruding heights H2 of some of the multiple gripping parts 30A and the protruding heights H2 of the other gripping parts 30B may be different. In this way, when the electric wire 2 to be wound around the electric wire drum 1 is short, both the gripping parts 30A and 30B are used to wind the electric wire 2, and when the electric wire 2 is long, only the gripping part 30B with the higher protruding height H2 out of the gripping parts 30A and 30B can be used to wind the electric wire 2. Compared to when the protruding heights H2 of all the gripping parts 30 are made higher than necessary, the weight and cost of the electric wire drum 1 can be reduced.

更に、上記実施形態では、把持部３０は、胴部１０の外周面に固定されて筒外側に延びる一対の棒状の脚部３１と、一対の脚部３１の同士を連結する棒状の連結部３２と、で構成されたＵ字状の形状を有している（図３参照）。これに対し、図７に示すように、把持部３０が、胴部１０の外周面に固定されて筒外側に延びる棒状の１本の脚部３１のみで構成されてもよい。更には、図８に示すように、把持部３０が、胴部１０の外周面に固定されて筒外側に延びる棒状の脚部３１と、脚部３１の延出端から胴部１０の軸方向に延びる延出部３３と、で構成されたＬ字状の形状を有していてもよい。これにより、胴部１０に巻き付けられた電線２が意図せず胴部１０から離れることを、把持部３０の延出部３３で抑制することができる。更に、電線ドラム１に電線２を巻き取るとき、作業者が把持部３０の延出部３３を容易に掴むことができる。 Furthermore, in the above embodiment, the gripping portion 30 has a U-shape composed of a pair of rod-shaped legs 31 fixed to the outer circumferential surface of the body 10 and extending outside the tube, and a rod-shaped connecting portion 32 connecting the pair of legs 31 (see FIG. 3). In contrast, as shown in FIG. 7, the gripping portion 30 may be composed of only one rod-shaped leg 31 fixed to the outer circumferential surface of the body 10 and extending outside the tube. Furthermore, as shown in FIG. 8, the gripping portion 30 may have an L-shape composed of a rod-shaped leg 31 fixed to the outer circumferential surface of the body 10 and extending outside the tube, and an extension portion 33 extending from the extension end of the leg 31 in the axial direction of the body 10. This allows the extension portion 33 of the gripping portion 30 to prevent the electric wire 2 wound around the body 10 from unintentionally separating from the body 10. Furthermore, when winding the electric wire 2 onto the electric wire drum 1, the worker can easily grasp the extension 33 of the gripping part 30.

ここで、上述した本発明に係る電線ドラム１及びドラム付き電線３の実施形態の特徴をそれぞれ以下［１］～［７］に簡潔に纏めて列記する。 Here, the features of the embodiments of the electric wire drum 1 and the electric wire with drum 3 according to the present invention described above are briefly summarized and listed below in [1] to [7].

［１］
電線（２）を巻き付けることになる筒状の外周面を有する胴部（１０）と、
前記外周面から前記胴部（１０）の外側に向けて延び且つ前記胴部（１０）の周方向に並ぶように設けられる複数の把持部（３０）と、を備える、
電線ドラム（１）。 [1]
A body portion (10) having a cylindrical outer peripheral surface around which the electric wire (2) is wound;
and a plurality of gripping portions (30) extending from the outer circumferential surface toward the outside of the body portion (10) and arranged in a circumferential direction of the body portion (10).
Drum of electric wire (1).

上記［１］の構成の電線ドラムは、筒状の外周面を有する胴部と、胴部の外周面に周方向に並ぶように設けられた複数の把持部と、を備える。そのため、例えば、胴部の一端と複数の把持部が設けられた位置との間（以下、胴部の一端側という。）に、電線（中古電線）の一端から所定の長さの部分を巻き付け、胴部の他端と複数の把持部が設けられた位置との間（以下、胴部の他端側という。）に、電線の残りの部分を巻き付けておけば、仮設電気工事において、電線の一端を配電盤等に向けて引き出すとともに、電線の他端を電気機器等に向けて引き出し、且つ、電線の中間部分を電線ドラムに巻き付けたまま、電線の配索を行うことができる。このとき、例えば、作業者は、把持部を掴んで電線ドラムを回転させることで、容易に電線を電線ドラムから引き出すことができる。更に、例えば、作業者は、電線の一端側の部分と他端側の部分を識別するための目印として把持部を用いることができる。更に、仮設電気工事の完了後、作業者は、把持部を掴んで電線ドラムを回転させることで、容易に電線を電線ドラムに巻き取ることができる。よって、電線の中間部分の損傷を避けながら、電線を仮設電気工事に用いることができる。したがって、本構成の電線ドラムは、中古電線を繰り返し再利用することに適している。 The electric wire drum of the above configuration [1] includes a body having a cylindrical outer peripheral surface and a plurality of gripping parts arranged in a circumferential direction on the outer peripheral surface of the body. Therefore, for example, if a predetermined length of one end of an electric wire (used electric wire) is wound between one end of the body and the position where the plurality of gripping parts are provided (hereinafter referred to as the one end side of the body), and the remaining part of the electric wire is wound between the other end of the body and the position where the plurality of gripping parts are provided (hereinafter referred to as the other end side of the body), in temporary electrical work, one end of the electric wire can be pulled out toward a switchboard, etc., and the other end of the electric wire can be pulled out toward an electrical device, etc., and the electric wire can be arranged while the middle part of the electric wire is still wound on the electric wire drum. At this time, for example, a worker can easily pull out the electric wire from the electric wire drum by grasping the gripping parts and rotating the electric wire drum. Furthermore, for example, a worker can use the gripping parts as a mark to distinguish the part on one end side and the part on the other end side of the electric wire. Furthermore, after the temporary electrical work is completed, the worker can easily wind the electric wire onto the electric wire drum by grasping the gripping portion and rotating the electric wire drum. This allows the electric wire to be used for temporary electrical work while avoiding damage to the middle part of the electric wire. Therefore, the electric wire drum of this configuration is suitable for repeatedly reusing used electric wires.

［２］
上記［１］に記載の電線ドラム（１）において、
前記複数の前記把持部（３０）が設けられる位置は、
前記胴部（１０）の軸方向において、前記胴部（１０）の一端から当該位置までの間隔（ＬＡ）と、前記胴部（１０）の他端から当該位置までの間隔（ＬＢ）と、が異なる位置である、
電線ドラム（１）。 [2]
In the electric wire drum (1) described in the above [1],
The positions at which the plurality of gripping portions (30) are provided are as follows:
In the axial direction of the body portion (10), a distance (LA) from one end of the body portion (10) to the position is different from a distance (LB) from the other end of the body portion (10) to the position.
Drum of electric wire (1).

上記［２］の構成の電線ドラムによれば、胴部の一端側の間隔と、胴部の他端側の間隔と、が異なる。そのため、例えば、電線ドラムを配電盤等の近くに配置して用いる場合、電線ドラムと配電盤等との間を繋ぐための最小限の長さの電線を、胴部の一端側に巻き付け、残りの十分に長い電線を胴部の他端側に巻き付けるように、電線ドラムを用いることができる。これにより、残りの電線を電線ドラムから電気機器等に向けて引き出すとき、引き出しの途中に電線が把持部が設けられた位置をまたぐことで、電線の引き出しが困難になることが生じにくい。よって、電線ドラムを用いた配索作業の作業性が向上する。 According to the electric wire drum of the configuration [2] above, the spacing on one end side of the body is different from the spacing on the other end side of the body. Therefore, for example, when the electric wire drum is used by placing it near a switchboard or the like, the electric wire of the minimum length required to connect the electric wire drum and the switchboard or the like can be wound around one end side of the body, and the remaining sufficiently long electric wire can be wound around the other end side of the body. This makes it difficult to pull out the electric wire when the remaining electric wire crosses the position where the gripping portion is provided during the pulling out process when pulling out the electric wire from the electric wire drum toward an electric device or the like. This improves the workability of the wiring work using the electric wire drum.

［３］
上記［１］に記載の電線ドラム（１）において、
前記複数の前記把持部（３０）の少なくとも一つは、
前記外周面に固定されて前記外側に延びる一対の脚部（３１）と、前記一対の前記脚部（３１）を連結する連結部（３２）と、を有する、
電線ドラム（１）。 [3]
In the electric wire drum (1) described in the above [1],
At least one of the plurality of gripping portions (30)
A pair of legs (31) fixed to the outer circumferential surface and extending outward, and a connecting portion (32) connecting the pair of legs (31),
Drum of electric wire (1).

上記［３］の構成の電線ドラムによれば、少なくとも一つの把持部が、一対の脚部と、一対の脚部を連結する連結部と、を有する。即ち、把持部がＵ字状の形状を有する。これにより、作業者が把持部を掴んで電線ドラムを回転させることが容易になり、電線を電線ドラムに巻き取る作業の作業性が向上する。 According to the electric wire drum of the configuration [3] above, at least one gripping portion has a pair of legs and a connecting portion that connects the pair of legs. In other words, the gripping portion has a U-shape. This makes it easier for an operator to grasp the gripping portion and rotate the electric wire drum, improving the workability of winding the electric wire onto the electric wire drum.

［４］
上記［１］に記載の電線ドラム（１）において、
前記複数の前記把持部（３０）は、
前記胴部（１０）の径方向における前記外周面から前記把持部（３０）の延出端までの間隔（Ｈ２）が異なる一の前記把持部（３０Ａ）と他の前記把持部（３０Ｂ）とを、含む、
電線ドラム（１）。 [4]
In the electric wire drum (1) described in the above [1],
The plurality of gripping portions (30) are
The gripping portion (30A) and the other gripping portion (30B) have different distances (H2) from the outer circumferential surface of the body portion (10) to the extended end of the gripping portion (30),
Drum of electric wire (1).

上記［４］の構成の電線ドラムによれば、一の把持部と他の把持部とで、胴部の外周面から把持部の延出端までの間隔（以下、突出高さという。）が異なる。これにより、電線ドラムに巻き付ける電線が短い場合には、一の把持部及び他の把持部の双方を電線の巻き取りに用い、電線が長い場合には、一の把持部及び他の把持部のうちの突出高さが高い方を用いることができる。全ての把持部の突出高さを必要以上に高くする場合に比べ、電線ドラムの重量やコストを低減できる。 According to the electric wire drum of the configuration [4] above, the distance from the outer circumferential surface of the body to the extended end of the gripping part (hereinafter referred to as the protruding height) is different between the first gripping part and the other gripping part. As a result, when the electric wire to be wound around the electric wire drum is short, both the first gripping part and the other gripping part are used to wind the electric wire, and when the electric wire is long, the one of the first gripping part and the other gripping part with the higher protruding height can be used. Compared to when the protruding height of all the gripping parts is made higher than necessary, the weight and cost of the electric wire drum can be reduced.

［５］
上記［１］に記載の電線ドラム（１）において、
前記複数の前記把持部（３０）の少なくとも一つは、
前記外周面に固定されて前記外側に延びる脚部（３１）と、前記脚部（３１）から前記胴部（１０）の軸方向に延びる延出部（３３）と、を有する、
電線ドラム（１）。 [5]
In the electric wire drum (1) described in the above [1],
At least one of the plurality of gripping portions (30)
The shaft portion (10) has a leg portion (31) fixed to the outer circumferential surface and extending outward, and an extension portion (33) extending from the leg portion (31) in the axial direction of the shaft portion (10).
Drum of electric wire (1).

上記［５］の構成の電線ドラムによれば、少なくとも一つの把持部が、胴部の外周面から延びる脚部と、脚部から胴部の軸方向に延びる延出部と、を有する。即ち、把持部がＬ字状の形状を有する。これにより、胴部に巻き付けられた電線が意図せず胴部から離れることを、把持部の延出部で抑制することができる。更に、電線ドラムに電線を巻き取るとき、作業者が把持部の延出部を容易に掴むことができる。 According to the electric wire drum of the configuration [5] above, at least one gripping portion has a leg portion extending from the outer peripheral surface of the body portion and an extension portion extending from the leg portion in the axial direction of the body portion. In other words, the gripping portion has an L-shape. This allows the extension portion of the gripping portion to prevent the electric wire wound around the body portion from unintentionally coming off the body portion. Furthermore, when winding the electric wire onto the electric wire drum, the worker can easily grasp the extension portion of the gripping portion.

［６］
上記［１］～上記［５］の何れか一つに記載の電線ドラム（１）と、
前記電線ドラム（１）が有する前記胴部（１０）の前記外周面に巻き付けられる電線（２）と、を備え、
前記電線（２）は、
前記胴部（１０）の軸方向における、前記胴部（１０）の一端と前記複数の前記把持部（３０）との間（１０Ａ）、及び、前記胴部（１０）の他端と複数の前記把持部（３０）との間（１０Ｂ）、の双方において、前記外周面に巻き付けられる、
ドラム付き電線（３）。 [6]
An electric wire drum (1) according to any one of the above [1] to [5],
and an electric wire (2) wound around the outer circumferential surface of the body portion (10) of the electric wire drum (1),
The electric wire (2) is
The gripping portion (30) is wound around the outer circumferential surface of the body portion (10) both between one end of the body portion (10) and the plurality of gripping portions (30) (10A) and between the other end of the body portion (10) and the plurality of gripping portions (30) (10B) in the axial direction of the body portion (10).
Electric wire with drum (3).

上記［６］の構成のドラム付き電線によれば、電線ドラムは、筒状の胴部と、胴部の外周面に周方向に並ぶように設けられた複数の把持部と、を備える。そのため、胴部の一端側に、電線（中古電線）の一端から所定の長さの部分を巻き付け、電線の残りの部分を、胴部の他端側に巻き付けることで、仮設電気工事において、電線の一端を配電盤等に向けて引き出すとともに、電線の他端を電気機器等に向けて引き出して、電線の中間部分を電線ドラムに巻き付けたまま、電線の配索を行うことができる。このとき、作業者は、電線の一端側の部分と他端側の部分を識別するための目印として把持部を用いることができる。更に、仮設電気工事の完了後、作業者は、把持部を掴んで電線ドラムを回転させることで、容易に電線を電線ドラムに巻き取ることができる。よって、電線の中間部分の損傷を避けながら、電線を仮設電気工事に用いることができる。したがって、本構成のドラム付き電線は、中古電線を繰り返し再利用することに適している。 According to the drum-attached electric wire of the configuration [6] above, the electric wire drum includes a cylindrical body and a plurality of gripping parts arranged in a circumferential direction on the outer circumferential surface of the body. Therefore, by winding a predetermined length of an electric wire (used electric wire) from one end of the body around one end of the body and winding the remaining part of the electric wire around the other end of the body, one end of the electric wire can be pulled out toward a switchboard or the like and the other end of the electric wire can be pulled out toward an electrical device or the like during temporary electrical work, and the electric wire can be laid out while the middle part of the electric wire is still wound around the electric wire drum. At this time, the worker can use the gripping part as a mark to distinguish the part on one end side of the electric wire from the part on the other end side. Furthermore, after the temporary electrical work is completed, the worker can easily wind the electric wire around the electric wire drum by grasping the gripping part and rotating the electric wire drum. Therefore, the electric wire can be used for temporary electrical work while avoiding damage to the middle part of the electric wire. Therefore, the drum-attached electric wire of this configuration is suitable for repeatedly reusing used electric wires.

［７］
上記［６］に記載のドラム付き電線（３）において、
前記胴部（１０）の前記一端と前記複数の前記把持部（３０）との間（１０Ａ）において前記外周面に巻き付けられる前記電線（２）の長さと、前記胴部（１０）の前記他端と前記複数の前記把持部（３０）との間（１０Ｂ）において前記外周面に巻き付けられる前記電線（２）の長さと、が異なる、
ドラム付き電線（３）。 [7]
In the drum-attached electric wire (3) described in the above [6],
a length of the electric wire (2) wound around the outer circumferential surface between the one end of the body portion (10) and the plurality of gripping portions (30) (10A) is different from a length of the electric wire (2) wound around the outer circumferential surface between the other end of the body portion (10) and the plurality of gripping portions (30) (10B);
Electric wire with drum (3).

上記［７］の構成のドラム付き電線によれば、胴部の一端側に巻き付けられる電線の長さと、胴部の他端側に巻き付けられる電線の長さと、が異なる。そのため、例えば、電線ドラムを配電盤等の近くに配置して用いる場合、電線ドラムと配電盤等との間を繋ぐための最小限の長さの電線を、胴部の一端側に巻き付け、残りの十分に長い電線を胴部の他端側に巻き付けるように、ドラム付き電線を用いることができる。これにより、残りの電線を電線ドラムから電気機器等に向けて引き出すとき、引き出しの途中に電線が把持部が設けられた位置をまたぐことで、電線の引き出しが困難になることが生じにくい。よって、ドラム付き電線を用いた配索作業の作業性が向上する。 According to the electric wire with drum having the configuration of [7] above, the length of the electric wire wound on one end of the body is different from the length of the electric wire wound on the other end of the body. Therefore, for example, when the electric wire drum is used by placing it near a switchboard or the like, the electric wire with drum can be used so that the minimum length of electric wire required to connect the electric wire drum and the switchboard or the like is wound on one end of the body, and the remaining sufficiently long electric wire is wound on the other end of the body. This makes it difficult to pull out the electric wire when the remaining electric wire crosses the position where the gripping portion is provided during the pulling out process when pulling out the electric wire from the electric wire drum toward an electric device or the like. Therefore, the workability of the wiring work using the electric wire with drum is improved.

１ 電線ドラム
２ 電線
３ ドラム付き電線
１０ 胴部
３０ 把持部
３１ 脚部
３２ 連結部
３３ 延出部 Reference Signs List 1 Electric wire drum 2 Electric wire 3 Electric wire with drum 10 Body 30 Grip portion 31 Leg portion 32 Connecting portion 33 Extension portion

Claims (7)

電線を巻き付けることになる筒状の外周面を有する胴部と、
前記外周面から前記胴部の外側に向けて延び且つ前記胴部の周方向に並ぶように設けられる複数の把持部と、を備える、
電線ドラム。 A body portion having a cylindrical outer peripheral surface around which the electric wire is wound;
A plurality of gripping portions extending from the outer circumferential surface toward the outside of the body portion and arranged in a circumferential direction of the body portion,
Electric wire drum. 請求項１に記載の電線ドラムにおいて、
前記複数の前記把持部が設けられる位置は、
前記胴部の軸方向において、前記胴部の一端から当該位置までの間隔と、前記胴部の他端から当該位置までの間隔と、が異なる位置である、
電線ドラム。 2. The electric wire drum according to claim 1,
The positions at which the plurality of gripping portions are provided are:
In the axial direction of the body portion, a distance from one end of the body portion to the position is different from a distance from the other end of the body portion to the position.
Electric wire drum. 請求項１に記載の電線ドラムにおいて、
前記複数の前記把持部の少なくとも一つは、
前記外周面に固定されて前記外側に延びる一対の脚部と、前記一対の前記脚部を連結する連結部と、を有する、
電線ドラム。 2. The electric wire drum according to claim 1,
At least one of the plurality of gripping portions is
A pair of legs fixed to the outer circumferential surface and extending outward, and a connecting portion connecting the pair of legs,
Electric wire drum. 請求項１に記載の電線ドラムにおいて、
前記複数の前記把持部は、
前記胴部の径方向における前記外周面から前記把持部の延出端までの間隔が異なる一の前記把持部と他の前記把持部とを、含む、
電線ドラム。 2. The electric wire drum according to claim 1,
The plurality of gripping portions include
The gripping portion includes one gripping portion and another gripping portion, the distance from the outer circumferential surface of the body portion to the extended end of the gripping portion being different in the radial direction of the body portion,
Electric wire drum. 請求項１に記載の電線ドラムにおいて、
前記複数の前記把持部の少なくとも一つは、
前記外周面に固定されて前記外側に延びる脚部と、前記脚部から前記胴部の軸方向に延びる延出部と、を有する、
電線ドラム。 2. The electric wire drum according to claim 1,
At least one of the plurality of gripping portions is
A leg portion fixed to the outer circumferential surface and extending outward, and an extension portion extending from the leg portion in the axial direction of the body portion,
Electric wire drum. 請求項１～請求項５の何れか一項に記載の電線ドラムと、
前記電線ドラムが有する前記胴部の前記外周面に巻き付けられる電線と、を備え、
前記電線は、
前記胴部の軸方向における、前記胴部の一端と前記複数の前記把持部との間、及び、前記胴部の他端と前記複数の前記把持部との間、の双方において、前記外周面に巻き付けられる、
ドラム付き電線。 The electric wire drum according to any one of claims 1 to 5,
an electric wire wound around the outer circumferential surface of the body portion of the electric wire drum,
The electric wire is
The gripping portion is wound around the outer circumferential surface between one end of the body and the plurality of gripping portions and between the other end of the body and the plurality of gripping portions in the axial direction of the body.
Drum with wire. 請求項６に記載のドラム付き電線において、
前記胴部の前記一端と前記複数の前記把持部との間において前記外周面に巻き付けられる前記電線の長さと、前記胴部の前記他端と前記複数の前記把持部との間において前記外周面に巻き付けられる前記電線の長さと、が異なる、
ドラム付き電線。 The electric wire with a drum according to claim 6,
a length of the electric wire wound around the outer circumferential surface between the one end of the body portion and the plurality of gripping portions is different from a length of the electric wire wound around the outer circumferential surface between the other end of the body portion and the plurality of gripping portions.
Drum with wire.
JP2023148360A 2023-09-13 2023-09-13 Electric wire drum and electric wire with drum Pending JP2025041208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023148360A JP2025041208A (en) 2023-09-13 2023-09-13 Electric wire drum and electric wire with drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2023148360A JP2025041208A (en) 2023-09-13 2023-09-13 Electric wire drum and electric wire with drum

Publications (1)

Publication Number Publication Date
JP2025041208A true JP2025041208A (en) 2025-03-26

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Family Applications (1)

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