Electric wire drum, and electric wire with drum

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

[Technical field]

[0001] The present invention relates to an electric wire drum on which an electric wire is wound, and to a drum-mounted electric wire in which an electric wire is wound around the electric wire drum. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there have been proposed electric wire drums for storing, transporting, etc. electric wires, and drum-mounted electric wires in which an electric wire is wound around an electric wire drum (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-267633 A Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, when wiring an electric wire in a building such as a house or a factory, a length of the electric wire corresponding to the wiring route is pulled out from a wire drum around which a new electric wire is wound, cut, and then arranged along the wiring route. In contrast, for example, in temporary electrical work for installing electrical equipment at outdoor construction sites, etc., used electric wires (hereinafter referred to as used electric wires) are generally used. Electric wire drums are also used for storing and transporting used electric wires. In order to reuse used electric wires as many times as possible, in temporary electrical work, the entire used electric wire is generally pulled out from the wire drum without cutting it, even if the length of the used electric wire is excessive for the actual wiring route. At this time, due to the excessive length of the used electric wire, the middle part between one end and the other end of the used electric wire may become loose, 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 used electric wire itself by cutting off the damaged part. However, in reality, the length of the used electric wire is shortened as a result of the cutting, making it difficult to reuse the used electric wire.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide an electric wire drum suitable for repeatedly reusing used electric wires, and a drum-mounted electric wire in which an electric wire is wound around the electric wire drum. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the electric wire drum and the electric wire with drum according to the present invention have the following features.

[0007] 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.

[0008] 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. Effect of the Invention

[0009] According to the electric wire drum and the 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 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 electric 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 for distinguishing between the one end side part and the other end side part 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 gripping the gripping portion 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 electric wire drum of this configuration is suitable for repeatedly reusing used electric wires.

[0010] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following description of the embodiment of the present invention (hereinafter, referred to as "embodiment") with reference to the accompanying drawings. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a perspective view of the electric wire drum according to the embodiment. [Diagram 2] FIG. 2 is a side view of the electric cable drum shown in FIG. [Diagram 3] 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 4] 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. [Diagram 5]FIG. 5 is a diagram showing an example in which the drum-attached electric wire shown in FIG. 4 is used for temporary electrical work. [Figure 6] FIG. 4 is a view corresponding to FIG. 3 of a wire drum according to a first modified example. [Figure 7] FIG. 5 is a view corresponding to FIG. 3 of a wire drum according to a second modified example. [Figure 8] FIG. 11 is a view corresponding to FIG. 2 of a wire drum according to a third modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] <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 for temporary electrical work for installing electrical equipment at construction sites such as civil engineering and building construction sites (see FIG. 5).

[0013] 1 to 3, the electric wire drum 1 includes a cylindrical body portion 10, a pair of disk-shaped flange portions 20 attached to both axial ends of the body portion 10, and a plurality of gripping portions 30 protruding from the outer circumferential surface of the body portion 10 toward the radially outer side of the body portion 10 and arranged in a line in the circumferential direction of the body portion 10. Hereinafter, for convenience of explanation, the axial direction, radial direction, and circumferential direction of the body portion 10 may be simply referred to as the "axial direction," the "radial direction," and the "circumferential direction," respectively.

[0014] The body 10 is a member around whose outer circumferential surface the electric wire 2 is wound. The body 10 is typically made of lightweight plastic.

[0015] The 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 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).

[0016] As shown in Figures 2 and 3, the multiple gripping portions 30 (four in this example) 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 portion 10. Hereinafter, in the body portion 10, the axial range from one axial end of the body portion 10 (right end in Figure 2) to the position where the gripping portions 30 are provided is referred to as the "one-end side region 10A," and the axial range from the other axial end of the body portion 10 (left end in Figure 2) to the position where the gripping portions 30 are 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 configured with a pair of rod-shaped leg portions 31 extending radially outward from a pair of positions on the outer circumferential surface of the body portion 10 that are the same in the axial direction and spaced apart in the circumferential direction, and a rod-shaped connecting portion 32 extending in the circumferential direction so as to connect the extended ends of the pair of leg portions 31 to each other, and has a substantially U-shaped shape. The gripping portion 30 is typically configured of stainless steel having high strength. The gripping portion 30 functions as a portion that an operator grasps when pulling out the electric wire 2 from the electric wire drum 1 or when winding it. The gripping portion 30 has a substantially U-shaped shape, which makes it easier for an operator to grasp the gripping portion 30 and rotate the electric wire drum 1, thereby 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 a portion of the electric wire 2 wound around the one end side region 10A and a portion of the electric wire 2 wound around the other end side region 10B.

[0017] As shown in Fig. 3, the gripping part 30 is detachably fixed to the trunk part 10 by inserting the pair of legs 31 from the outer peripheral surface side of the trunk part 10 into a pair of through holes 11 formed in the trunk part 10 corresponding to the pair of legs 31, and fixing the pair of legs 31 to the trunk part 10 using fasteners 40 (e.g., bolts, etc.) on the inner peripheral surface side of the trunk part 10. The work of fixing the gripping part 30 to the trunk part 10 using the fasteners 40 can be easily performed by an operator inserting his / her hand into the hollow part of the trunk part 10 with the flange part 20 removed from the trunk part 10. A protruding height H2 (see Figs. 2 and 3) of the gripping part 30 in the radial outward direction from the outer peripheral surface of the trunk part 10 is smaller than a protruding height H1 (see Fig. 2) of the flange part 20 in the radial outward direction from the outer peripheral surface of the trunk part 10. Furthermore, the grip portion 30 and the fastener 40 may be configured so that the protruding height H2 of the grip portion 30 is adjustable by adjusting the fixing position of the fastener 40 in the extension direction of the leg portion 31.

[0018] The electric wire 2 is wound around the electric wire drum 1 (see Figs. 1 to 3) having the above-mentioned configuration, thereby obtaining an electric wire 3 with a drum (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 circumferential 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 (the right side in Fig. 4), and then passes through (straddles) a 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 circumferential surface of the other-end region 10B in the clockwise direction as viewed from the one-end side (the right side in Fig. 4). The multiple windings on the outer peripheral surface of the other end region 10B are performed, for example, by alternately repeating a spiral winding from one end to the other end in the axial direction of the other end region 10B (from the right end to the left end in FIG. 4) and a spiral winding from the other end to one end in the axial direction of the other end region 10B (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 are reversed, the load (stress) acting on the electric wire 2 at the point where the winding directions change may become excessive.

[0019] As described above, 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, and the electric wire 2 is wound in a single layer in the one end side region 10A and in a multiple layer in the other end side region 10B. In the example shown in FIG. 4, the length of the electric wire 2 wound in the one end side region 10A is smaller than the length of the electric wire 2 wound in the other end side region 10B. The length of the electric wire 2 wound in the one end side region 10A is set to a minimum length (typically 5 m to 10 m) for connecting 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 side region 10B is set to a length sufficiently larger than the length assumed to be necessary for connecting the electric wire drum 1 and the electric device 70 during temporary electrical work.

[0020] The electric wire 3 with drum shown in FIG. 4 is used, for example, in temporary electrical work for installing electric equipment at a construction site such as civil engineering or 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 a support shaft 51 of a stand 50 placed on the ground 4 near a 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 device 70 and connected to the electric device 70. The switchboard 60 is electrically connected to a transformer provided on a utility pole (not shown) via an electric wire 5. As a result, power is supplied from the transformer provided on the utility pole to the electric device 70 via the electric wire 5, the switchboard 60, and the electric wire 2 in this order.

[0021] In the example shown in FIG. 5, the length of the electric wire 2 wound around the one end side 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 at its middle portion, causing the middle portion to come into contact with the ground 4 or surrounding construction tools and the like and to be damaged. The length of the electric wire 2 wound around the other end side 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 electric device 70, but the surplus portion of the electric wire 2 connecting the electric wire drum 1 and the electric device 70 remains wound around the other end side region 10B of the electric wire drum 1. Therefore, the electric wire 2 connecting the electric wire drum 1 and the electric device 70 does not loosen significantly at its middle portion, causing the middle portion to come into contact with the ground 4 or surrounding construction tools and the like and to 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 axially straddle the position where the gripping portion 30 is provided during the pulling out, which makes it difficult to pull out the electric wire 2.

[0022] After the temporary electrical work is completed, the worker can grasp the gripping portion 30 and rotate the electric wire drum 1 to wind up the electric wire 2 connecting the electric wire drum 1 and the switchboard 60 onto one end side region 10A of the electric wire drum 1, and also wind up the electric wire 2 connecting the electric wire drum 1 and the electric device 70 onto the other end side region 10B of the electric wire drum 1. Thus, the electric wire 2 can be used for the 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.

[0023] (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 drawn out toward a switchboard 60 or the like and the other end of the electric wire 2 can be drawn out toward an electric device 70 or the like, and the electric wire 2 can be arranged while the middle part of the electric wire 2 is wound around the electric wire drum 1. At this time, the worker can use the gripping portion 30 as a marker 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 drum according to this embodiment are suitable for repeatedly reusing used electric wires.

[0024] 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 used by being disposed near a switchboard 60 or the like, the electric wire 2 having a minimum length for connecting 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 electric wire 2 having a sufficiently long length 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 crosses 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.

[0025] 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.

[0026] 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 to this, as shown in FIG. 6, the protruding height H2 of the gripping part 30A among the multiple gripping parts 30 may be different from the protruding height H2 of the gripping part 30B among the multiple gripping parts 30 other than the above-mentioned part. 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 having the higher protruding height H2 among the gripping parts 30A and 30B can be used to wind the electric wire 2. Compared to the case where 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.

[0027] Furthermore, in the above embodiment, the gripping part 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 to the outside of the tube, and a rod-shaped connecting part 32 connecting the pair of legs 31 (see FIG. 3). In contrast to this, as shown in FIG. 7, the gripping part 30 may be composed of only one rod-shaped leg 31 fixed to the outer circumferential surface of the body 10 and extending to the outside of the tube. Furthermore, as shown in FIG. 8, the gripping part 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 to the outside of the tube, and an extending part 33 extending from the extending end of the leg 31 in the axial direction of the body 10. This allows the extending part 33 of the gripping part 30 to prevent the electric wire 2 wound around the body 10 from unintentionally coming off the body 10. Furthermore, when winding the electric wire 2 onto the electric wire drum 1, the worker can easily grasp the extending portion 33 of the gripping portion 30.

[0028] Here, the features of the embodiments of the electric wire drum 1 and the drum-mounted electric wire 3 according to the present invention described above will be briefly summarized and listed in the following [1] to [7].

[0029] [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 line in the circumferential direction of the body portion (10). Drum of electric wire (1).

[0030] The electric wire drum having the configuration of [1] above 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 for distinguishing between the one end side part and the other end side part 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 gripping the gripping portion 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 electric wire drum of this configuration is suitable for repeatedly reusing used electric wires.

[0031] [2] In the electric wire drum (1) described in [1] above, 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).

[0032] According to the electric wire drum having the configuration of [2] above, the interval on one end side of the body portion is different from the interval on the other end side of the body portion. Therefore, for example, when the electric wire drum is used by being placed near a switchboard or the like, the electric wire drum can be used so that the minimum length of the electric wire required to connect the electric wire drum and the switchboard or the like is wound around one end side of the body portion, and the remaining sufficiently long electric wire is wound around the other end side of the body portion. This makes it difficult to pull out the remaining electric wire when the electric wire straddles the position where the gripping portion is provided during the pulling out process, when the remaining electric wire is pulled out from the electric wire drum toward an electric device or the like. Therefore, the workability of the wiring work using the electric wire drum is improved.

[0033] [3] In the electric wire drum (1) described in [1] above, At least one of the plurality of gripping portions (30) is A pair of leg portions (31) fixed to the outer circumferential surface and extending outward, and a connecting portion (32) connecting the pair of leg portions (31), Drum of electric wire (1).

[0034] According to the electric wire drum having the configuration of [3] above, at least one gripping portion has a pair of legs and a connecting portion that connects the pair of legs. That is, 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.

[0035] [4] In the electric wire drum (1) described in [1] above, The plurality of gripping portions (30) are The grip portion (30A) and the other grip portion (30B) have different distances (H2) from the outer circumferential surface of the body portion (10) to the extended ends of the grip portions (30), Drum of electric wire (1).

[0036] According to the electric wire drum having the configuration of [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 second 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 second 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 second gripping part with the higher protruding height can be used. Compared to the case where 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.

[0037] [5] In the electric wire drum (1) described in [1] above, At least one of the plurality of gripping portions (30) is 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).

[0038] According to the electric wire drum having the configuration of [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. That is, 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 around the electric wire drum, an operator can easily grasp the extension portion of the gripping portion.

[0039] [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 portions (30) are wound around the outer circumferential surface 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); Drum with wire(3).

[0040] According to the electric wire with drum having the configuration of [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 drawn out toward a switchboard or the like and the other end of the electric wire can be drawn out toward an electrical device or the like in temporary electrical work, and the electric wire can be arranged with the middle part of the electric wire wound around the electric wire drum. At this time, the worker can use the gripping parts as a mark to distinguish the part on the 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 around the electric wire drum by grasping the gripping parts 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 electric wire with drum having this configuration is suitable for repeatedly reusing used electric wires.

[0041] [7] In the electric wire (3) with drum described in [6] above, 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); Drum with wire(3).

[0042] 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 such that the minimum length of the 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 is pulled out from the electric wire drum toward an electric device or the like because the electric wire crosses the position where the gripping portion is provided during the pulling out. Therefore, the workability of the wiring work using the electric wire with drum is improved. [Explanation of symbols]

[0043] 1 Electric cable drum 2 electric wire 3. Drum-mounted wire 10. Torso 30 Gripping part 31 Legs 32 Connecting part 33 Extension

Claims

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

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