JP7495286B2 - Bundle-wound electric wire and method for manufacturing the bundle-wound electric wire - Google Patents

Description

The present invention relates to a bundled electric wire in which packaging is applied to the outer surface of a bundle of electric wires formed by winding electric wires, and to a method for manufacturing this bundled electric wire.

Conventionally, in order to prevent the wire bundle formed by winding electric wires from being soiled during transportation and storage, a bundled electric wire has been used in which the wire bundle is covered and wrapped in a packaging material (e.g., a heat-shrinkable film). Examples of such bundled electric wires include those disclosed in Patent Document 1 and Patent Document 2.

The bundled electric wire shown in FIG. 2B of Patent Document 1 includes an electric wire bundle B formed by winding electric wires into a cylindrical shape, and a heat-shrinkable plastic sheet C (corresponding to the above-mentioned packaging body) that covers the outer surface of the electric wire bundle B. The bundled electric wire has a sheet overlapping portion 8. The sheet overlapping portion 8 is a portion where one end and the other end of the heat-shrinkable plastic sheet C overlap and are integrated by thermal fusion when the heat-shrinkable plastic sheet C covers the outer surface of the electric wire bundle B.

In Patent Document 1, for example, when pulling out electric wires from electric wire bundle B, it is necessary to cut open the heat-shrinkable plastic sheet C. To cut open the heat-shrinkable plastic sheet C, the sheet overlap portion 8 is cut off from the inner peripheral surface side of the electric wire bundle B, and the heat-shrinkable plastic sheet C covering the outer surface of the electric wire bundle B is removed.

The bundled electric wire shown in FIG. 1 of Patent Document 2 (referred to in Patent Document 2 as a "heat-shrinkable film wrapped bundled electric wire") comprises an electric wire bundle 11 formed by winding electric wires into a cylindrical shape, a cable tie 12 that holds down and wraps the electric wire bundle 11, and a heat-shrinkable film 13 that covers and wraps the outer surface of the electric wire bundle 11 except for the inner peripheral surface.

In Patent Document 2, as shown in FIG. 1 of Patent Document 2, a cut line 14 is provided on the heat shrink film 13. This cut line 14 is provided from one open end that communicates with the hole of the electric wire bundle 11 to the other open end. This cut line 14 is provided in accordance with the position where the cable tie 12 is wrapped around the electric wire bundle 11.

In Patent Document 2, for example, when pulling out the electric wire from the electric wire bundle 11, as shown in FIG. 3 of Patent Document 2, the cutting edge of the cutter 17 is inserted so as to trace over the cut line 14, and the heat shrink film 13 is cut open along the cut line 14. Thereafter, as shown in FIG. 4 of Patent Document 2, the cable tie 12 is cut, and the electric wire is pulled out from the inner circumference side of the electric wire bundle 11.

Japanese Patent Application Laid-Open No. 9-202372 JP 2004-217237 A

However, in the technology disclosed in Patent Document 1 (hereinafter referred to as "Prior Art 1" in this specification), when cutting open the heat-shrinkable plastic sheet C, it was necessary to cut off the sheet overlapping portion 8 with a cutter or the like. Therefore, Prior Art 1 had a problem in that there was a risk of damaging the electric wires of the electric wire bundle B with the cutter or the like.

On the other hand, in the technology disclosed in Patent Document 2 (hereinafter referred to as "Prior Art 2" in this specification), the cutoff line 14 is provided in accordance with the position where the cable tie 12 is wrapped around the bundle of electric wires 11. Therefore, even if the tip of the cutter 17 is inserted into the cutoff line 14 to cut the heat shrink film 13, the tip of the cutter 17 comes into contact with the cable tie 11, and the tip of the cutter 17 does not come into contact with the electric wires. Therefore, it can be said that Prior Art 2 reduces the risk of damaging the electric wires of the bundle of electric wires 11 compared to Prior Art 1.

However, in conventional technique 2, the cable tie 12 must be cut after the heat shrink film 13 is cut before the electric wires can be pulled out from the inner circumference of the electric wire bundle 11. Therefore, conventional technique 2 has a problem in that it may affect the workability when pulling out the electric wires.

The present invention was made in consideration of the above circumstances, and aims to provide a bundled electric wire that can improve the workability when pulling out the electric wire compared to the conventional technology, and a manufacturing method for this bundled electric wire.

(1) A bundle-wound electric wire according to the present invention, which has been made to solve the above-mentioned problems, comprises: an electric wire bundle obtained by winding electric wires in a cylindrical shape; and a packaging body covering an outer surface of the electric wire bundle and having an outlet formed so that the electric wires can be pulled out from an inner peripheral surface side of the electric wire bundle, wherein at least one of the outer surfaces covering both end faces in the axial direction of the electric wire bundle among the outer surfaces of the packaging body is provided with radial cut-out means and circumferential cut-out means formed so that the packaging body can be cut out, wherein a plurality of the radial cut-out means are formed so as to extend in the radial direction of the electric wire bundle centered on a central axis of the electric wire bundle, and at least one of the circumferential cut-out means is formed concentrically from the central axis of the electric wire bundle , and a cut-out means formed so that the packaging body can be cut out is not provided on an outer surface of the outer surface of the packaging body covering the outer peripheral surface of the electric wire bundle .

According to the present invention having the above feature (1), by providing a plurality of radial cutting means on the outer surface of the packaging body and at least one circumferential cutting means, the worker can manually cut off the packaging body along the radial cutting means and circumferential cutting means. Therefore, the worker can peel off the packaging body without using a cutter or the like, and there is no risk of damaging the electric wire. Furthermore, according to the present invention, when pulling out the electric wire from the inner peripheral surface side of the electric wire bundle, the radial cutting means and circumferential cutting means are cut by hand, or the packaging body is cut along the radial cutting means while pulling out the electric wire, so that the electric wire can be pulled out without getting caught in the packaging body.

In addition, according to the present invention, an operator can manually separate the packaging body along the radial cutting means and circumferential cutting means, so that even if the outlet is covered by the packaging body, the electric wire can be easily pulled out by separating the packaging body along the radial cutting means and circumferential cutting means.

In addition, according to the present invention, the radial cutting means and the circumferential cutting means are provided on at least one of the outer surfaces of the packaging body that cover both end faces in the axial direction of the electric wire bundle, and are not provided on the outer peripheral surface of the packaging body, so that the outer peripheral surface is not cut along the radial cutting means or the circumferential cutting means. Therefore, when pulling out the electric wires, even if the packaging body is cut along the radial cutting means or the circumferential cutting means, the outer peripheral surface is not cut, so that the electric wires can be pulled out while maintaining the shape (cylindrical) of the electric wire bundle at the outer peripheral surface.

(2) The bundled electric wire of the present invention described in claim 2 is characterized in that in the bundled electric wire described in claim 1, the radial cutting means and the circumferential cutting means are perforations formed in the outer surface of the packaging body in the form of broken lines.

According to the present invention having the above characteristic (2), perforations are formed on the outer surface of the packaging body as radial and circumferential cutting means, so that the worker can easily cut off the packaging body by tearing the perforations by hand.

(3) The bundled electric wire of the present invention described in claim 3 is the bundled electric wire described in claim 1 or 2, characterized in that the circumferential cut-out means is provided at only one location in the radial direction between a middle part of the radius of the bundled electric wire and an outer edge of the bundled electric wire.

According to the present invention having the above characteristic (3), by providing the circumferential cutting means at a position from the middle of the radius of the bundled electric wire to the outer edge of the bundled electric wire, even if the pull-out opening is formed at a position whose central axis is offset from the central axis of the electric wire bundle, the electric wire can be easily pulled out by cutting the packaging along the radial cutting means and the circumferential cutting means.

(4) The bundled electric wire of the present invention described in claim 4 is the bundled electric wire described in claim 1, 2 or 3, characterized in that the packaging body is formed so that its outer surface can be printed.

The present invention, which has the above-mentioned feature (4), makes it easier to print on the outer surface of the package.

(5) A method for manufacturing a bundle wound electric wire according to the present invention, which has been made to solve the above problems, includes a package manufacturing step of manufacturing a package that covers an outer surface of an electric wire bundle formed by winding electric wires in a cylindrical shape, and a package covering step of covering the outer surface of the electric wire bundle with the package and forming an outlet through which the electric wires can be drawn out from an inner peripheral surface side of the electric wire bundle, wherein, in the package manufacturing step, when the outer surface of the electric wire bundle is covered with the package, the package can be cut out on at least one of the outer surfaces that cover both end faces in the axial direction of the electric wire bundle, and the electric wires can be wrapped around the package. The present invention is characterized in that a plurality of radial cutting means are provided which extend in the radial direction of the electric wire bundle centered on the central axis of the bundle, and at least one circumferential cutting means which is capable of cutting off the packaging body and is formed concentrically from the central axis of the electric wire bundle is provided, and no cutting means formed so as to be able to cut off the packaging body is provided on an outer surface which covers the outer peripheral surface of the electric wire bundle, and in the packaging covering step, the outer surface of the electric wire bundle is covered with the packaging body such that the outer surface of the packaging body provided with the radial cutting means and the circumferential cutting means covers at least one of both end faces in the axial direction of the electric wire bundle.

According to the present invention having the above feature (5), by providing a plurality of radial cutting means on the outer surface of the packaging body and at least one circumferential cutting means, it is possible to manufacture a bundled electric wire in which the packaging body can be cut by hand along the radial cutting means and circumferential cutting means. Therefore, an operator can peel off the packaging body without using a cutter or the like, and there is no risk of damaging the electric wire. In addition, according to the present invention, when pulling out the electric wire from the inner peripheral surface side of the electric wire bundle, it is possible to manufacture a bundled electric wire in which the radial cutting means and circumferential cutting means can be cut by hand, or the packaging can be cut along the radial cutting means while pulling out the electric wire, so that the electric wire can be pulled out without getting caught in the packaging.

In addition, according to the present invention, it is possible to manufacture a bundled electric wire in such a way that an operator can manually cut off the packaging along the radial cutting means and the circumferential cutting means. Therefore, even if the outlet is covered by the packaging, the electric wire can be easily pulled out by cutting off the packaging along the radial cutting means and the circumferential cutting means.

In addition, according to the present invention, a bundled electric wire can be manufactured in which the radial cutting means and the circumferential cutting means are provided on at least one of the outer surfaces of the packaging body that cover both end faces in the axial direction of the electric wire bundle, and are not provided on the outer peripheral surface of the packaging body, so that the outer peripheral surface is not cut along the radial cutting means or the circumferential cutting means. Therefore, when the electric wire is pulled out, even if the packaging body is cut along the radial cutting means or the circumferential cutting means, the outer peripheral surface is not cut, so the electric wire can be pulled out while maintaining the shape (cylindrical) of the electric wire bundle at the outer peripheral surface.

The present invention has the effect of improving the ease of use when pulling out electric wires compared to conventional techniques.

1 is a perspective view showing a first embodiment of a bundled electric wire according to the present invention; FIG. 2 is a plan view showing the film (packaging body) before it is applied to the outer surface of the wire bundle. FIG. 11 is a perspective view showing an operation of drawing out electric wires from a bundle of electric wires. FIG. 11 is a perspective view showing a bundled electric wire according to a second embodiment of the present invention. FIG. 2 is a plan view showing the film (packaging body) before it is applied to the outer surface of the wire bundle. FIG. 2 is a perspective view showing a state in which an outlet of a bundled electric wire is covered with a film (packaging body). FIG. 11 is a perspective view showing an operation of drawing out electric wires from a bundle of electric wires.

Below, we will explain Example 1 of the bundled electric wire according to the present invention with reference to Figures 1 to 3, and Example 2 of the bundled electric wire according to the present invention with reference to Figures 4 to 7.

FIG. 1 is a perspective view showing a first embodiment of a bundled electric wire according to the present invention, FIG. 2 is a plan view showing a film (packaging body) before being applied to the outer surface of an electric wire bundle, and FIG. 3 is a perspective view showing an operation of drawing electric wires from an electric wire bundle.
The arrows in the figure indicate the up and down directions (the directions of the arrows are merely examples).

In FIG. 1, reference numeral 1 indicates an embodiment of a bundled electric wire according to the present invention. The bundled electric wire 1 shown in FIG. 1 is formed in a cylindrical (donut) shape and includes a bundle of electric wires 2 and a film 3 that covers and packages (encloses) the bundle of electric wires 2. Each component of the bundled electric wire 1 will be described below.

First, the electric wire bundle 2 will be described.
1 is formed by winding an electric wire 4 into a cylindrical shape (doughnut shape). Although not specifically shown, the electric wire 4 is an insulated wire core including a conductor and an insulating coating that covers the outer periphery of the conductor.

In this embodiment, the object to be wrapped and coated with the film 3 is a bundle of electric wires 2, but it is not limited to this and may be a cable bundle formed by winding cables into a cylindrical shape (doughnut shape). In this way, when the object to be wrapped and coated with the film 3 is a cable bundle, the bundled electric wires of the present invention are to be read as a "bundle-wrapped cable."

Next, the film 3 will be described.
1 and 2 is a so-called heat-shrinkable film (shrink film) made of polyethylene, polypropylene, polyethylene terephthalate, etc. The film 3 has a belt-like shape before covering the electric wire bundle 2 (see FIG. 2), and after covering the electric wire bundle 2, is heated to cause thermal shrinkage, thereby covering and packaging (enclosing) the electric wire bundle 2.

As shown in FIG. 1, the film 3 surrounds the outer surfaces of the wire bundle 2 except for the inner surface 7 (the upper surface 5, the lower surface 6, and the outer surface 8 of the wire bundle 2). The film 3 shown in FIGS. 1 and 2 has an upper surface 9 and a lower surface 10.

In FIG. 1, the surface indicated by reference numeral 11 among the outer surfaces of the film 3 is the outer peripheral surface of the bundle-wound electric wire 1. Also, in FIG. 1, reference numeral 13 is an outlet. The outlet 13 is formed so that the electric wire 4 can be pulled out (unwound) from the electric wire bundle 2 to the outside of the film 3 (see FIG. 3).

The film 3 shown in Figures 1 and 2 has its outer surfaces, for example the upper surface 9 and the lower surface 10, formed to be printable. Specifically, the upper surface 9 and the lower surface 10 have been subjected to a printable surface treatment or surface processing. In Figures 1 to 3, the outer surface that has been subjected to the above-mentioned surface treatment or surface processing (the upper surface 9 in Figures 1 to 3) is shown with a dot pattern (the same applies to Figures 4 to 7 to be referred to later).

Specific examples of the above surface treatments and surface processing include corona treatment (a surface treatment technique that modifies the surface of a substrate by irradiating the substrate with corona discharge) and adding an embossed structure (embossing), which are just a few examples. By carrying out the above surface treatments and surface processing, it is possible to make it easier to print on the outer surfaces (upper surface 9, lower surface 10) of the film 3.

The upper surface 9 and the lower surface 10 shown in Figs. 1 and 2 each have a plurality of cutting means 12. In this embodiment, six cutting means 12 are provided on each of the upper surface 9 and the lower surface 10 (this number is an example). Note that the cutting means 12 may be provided on either the upper surface 9 or the lower surface 10.

The cutting means 12 shown in Figs. 1 and 2 is a perforation formed so that the film 3 can be cut away. More specifically, the cutting means 12 is formed so as to cut the upper surface 9 and the lower surface 10 of the film 3 in the form of a dashed line. The cutting means 12 is formed so that an operator can punch (tear) it by hand.

As shown in FIG. 1, the cutting means 12 is formed so as to extend from the central axis of the bundled electric wire 1 (wire bundle 2) to the outer edges 14 of the upper surface 9 and lower surface 10 of the film 3 in the radial direction of the bundled electric wire 1 (wire bundle 2). The cutting means 12 extend radially from the central axis of the bundled electric wire 1 (wire bundle 2) and are disposed at equal intervals in the circumferential direction of the bundled electric wire 1 (wire bundle 2).

Next, a manufacturing operation (manufacturing method) of the bundled electric wire 1 will be described.
The manufacturing operation (manufacturing method) of the bundle wound electric wire 1 shown in Fig. 1 includes a film manufacturing step and a film covering step. Each step will be described below.

First, the film manufacturing process will be described.
In the film manufacturing process, a plurality of cutting means 12 are provided on the outer surfaces that correspond to the upper surface 9 and the lower surface 10 when the electric wire bundle 2 is covered with the film 3 (see FIG. 2).

In the film manufacturing process, the upper surface 9 and the lower surface 10 of the film 3 are subjected to a printable surface treatment or surface processing (for example, corona treatment, addition of an embossed structure (embossing), etc.).

Next, the film coating process will be described.
In the film covering process, the upper surface 5, the lower surface 6, and the outer peripheral surface 8 of the electric wire bundle 2 are covered with the film 3. Thereafter, the film 3 is heated to cause thermal shrinkage, thereby covering and packaging (surrounding) the electric wire bundle 2 with the film 3. At this time, an outlet 13 is formed (see FIG. 1 ).

When covering the bundle of electric wires 2 with the film 3, the upper surface 9 of the film 3 provided with the cutting means 12 covers the upper surface 5 of the bundle of electric wires 2, and the lower surface 10 of the film 3 provided with the cutting means 12 covers the lower surface 6 of the bundle of electric wires 2 (see FIG. 1). This completes the manufacturing process for the bundle-wound electric wire 1.

Next, the operation of drawing out the electric wire 4 from the bundled electric wire 1 will be described.
First, in FIG. 1 , for example, when pulling out the electric wires 4 from the inner peripheral surface 7 side of the electric wire bundle 2, an operator manually cuts off the cutting means 12 along the cutting means 12 from the pulling opening 13 side (the inner peripheral surface 7 side of the electric wire bundle 2).

Then, the worker turns over the end of the film 3 on the inner circumferential surface 7 side of the bundle of electric wires 2, and pulls out (unrolls) the electric wires 4 to the outside of the film 3 (see FIG. 3). If it is desired to further expand the pull-out opening 13, the worker can either cut the cutting means 12 by hand, or cut the film 3 along the cutting means 12 while pulling out the electric wires 4.

According to this embodiment, by providing a plurality of cutting means 12 on the upper surface 9 and the lower surface 10 of the film 3, the worker can manually cut off the film 3 along the cutting means 12. Therefore, the worker can peel off the film 3 without using a cutter or the like, and there is no risk of damaging the electric wire 4.

In addition, according to this embodiment, when pulling out the electric wire 4 from the inner peripheral surface 7 side of the electric wire bundle 2, the cutting means 12 is cut by hand, or the film 3 is cut along the cutting means 12 while pulling out the electric wire 4, so that the electric wire 4 can be pulled out without getting caught on the film 3.

In addition, according to the present invention, the cutting means 12 is provided on the upper surface 9 and the lower surface 10 of the film 3, but not on the outer peripheral surface 11, so that the outer peripheral surface 11 is not cut along the cutting means 12. Therefore, when pulling out the electric wires 4, even if the film 3 is cut along the cutting means 12, the outer peripheral surface 11 is not cut, so that the electric wires 4 can be pulled out while maintaining the shape (cylindrical) of the electric wire bundle 2 at the outer peripheral surface 11.

In addition, according to this embodiment, perforations are formed on the upper surface 9 and the lower surface 10 of the film 3 as the cutting means 12, so that the worker can easily cut the film 3 by tearing the perforations with his or her hands.

Next, the effects of this embodiment will be described.
As described above with reference to FIGS. 1 to 3, according to this embodiment, it is possible to improve the workability when drawing out the electric wire 4 as compared with the prior art.

In addition to Example 1, the bundled electric wire according to the present invention may also use Example 2 described below. Example 2 will be described below with reference to Figures 4 to 7.

FIG. 4 is a perspective view showing a second embodiment of a bundled electric wire according to the present invention, FIG. 5 is a plan view showing a film (packaging body) before being applied to the outer surface of an electric wire bundle, FIG. 6 is a perspective view showing a state in which an outlet of the bundled electric wire is covered with a film (packaging body), and FIG. 7 is a perspective view showing an operation of pulling out electric wires from the bundled electric wire.
In addition, the arrows in the drawings indicate the up and down directions (the directions of the arrows are merely examples). The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The bundled electric wire 21 shown in FIG. 4 differs from Example 1 in that it includes a film 22. The film 22 corresponds to the "package" described in the claims. The film 22 shown in FIG. 4 has a configuration similar to that of the film 3 in Example 1 (see FIGS. 1 and 2) with the addition of a circumferential cutting means 27, which will be described later. The film 22 will be described below.

The film 22 shown in Fig. 4 has an upper surface 23 and a lower surface 24. The upper surface 23 and the lower surface 24 correspond to "the outer surface of the packaging body that covers both end surfaces in the axial direction of the wire bundle" as described in the claims. In Fig. 4, the surface indicated by reference numeral 25 among the outer surfaces of the film 22 is the outer peripheral surface of the bundled electric wires 21. Also, in Fig. 4, reference numeral 28 is an outlet. The outlet 28 is a portion that corresponds to the outlet 13 (see Fig. 1) in Example 1.

The upper surface 23 and the lower surface 24 shown in Figs. 4 and 5 are provided with radial cut-out means 26 and circumferential cut-out means 27, respectively. In this embodiment, six radial cut-out means 26 are provided on each of the upper surface 23 and the lower surface 24 (the number is an example). In this embodiment, one circumferential cut-out means 27 is provided on each of the upper surface 23 and the lower surface 24 (the number is an example. Two or more may be provided). Note that the radial cut-out means 26 and the circumferential cut-out means 27 may be provided on either the upper surface 23 or the lower surface 24.

The radial cutting means 26 and the circumferential cutting means 27 shown in Figs. 4 and 5 are perforations formed so that the film 22 can be cut. More specifically, the radial cutting means 26 and the circumferential cutting means 27 are formed so that they cut into the upper surface 23 and the lower surface 24 of the film 22 in the form of dashed lines. The radial cutting means 26 and the circumferential cutting means 27 are each formed so that they can be punched through (torn) by hand by an operator.

As shown in FIG. 4, the radial cutting means 26 are formed on the upper surface 23 and the lower surface 24 of the film 22 so as to extend from the central axis of the bundled electric wire 21 (electric wire bundle 2) to the outer edge 29 of each of the upper surface 23 and the lower surface 24 of the film 22 in the radial direction of the bundled electric wire 21 (electric wire bundle 2). The radial cutting means 26 extend radially from the central axis of the bundled electric wire 21 (electric wire bundle 2) and are arranged at equal intervals in the circumferential direction of the bundled electric wire 21 (electric wire bundle 2).

As shown in FIG. 4, the circumferential cutting means 27 is formed concentrically from the central axis of the bundled electric wire 21 (wire bundle 2) on each of the upper surface 23 and the lower surface 24 of the film 22. The circumferential cutting means 27 is provided at a position from the middle part Y of the radius R of the bundled electric wire 21 in FIG. 4 to the outer edge 29 of each of the upper surface 23 and the lower surface 24 of the film 22.

The circumferential cutting means 27 shown in FIG. 5 is provided on the upper surface 23 of the film 22 at a predetermined distance from one end 30 of the film 22 in the width direction, and is provided on the lower surface 24 of the film 22 at a predetermined distance from the other end 31 of the film 22 in the width direction.

Specifically, in FIG. 5, the overall width of the film 22 in the width direction is "W1", the width from one end 30 of the film 22 in the width direction on the upper surface 23 of the film 22 to the circumferential cutting means 27 is "W2", and the width from the other end 31 of the film 22 in the width direction on the lower surface 24 of the film 22 to the circumferential cutting means 27 is "W3", W2 and W3 are each 10% or more and 25% or less of W1. In this embodiment, W2 and W3 are each approximately 15% of W1.

Next, a manufacturing operation (manufacturing method) of the bundled electric wire 21 will be described.
The manufacturing operation (manufacturing method) of the bundled electric wire 21 shown in Fig. 4 includes a film manufacturing step and a film covering step, similar to the manufacturing operation (manufacturing method) of the bundled electric wire 1 (see Fig. 1) in Example 1. Each step will be described below.

First, the film manufacturing process will be described.
The film manufacturing process corresponds to a "packaging manufacturing process" described in the claims. In the film manufacturing process, a radial cutting means 26 and a circumferential cutting means 27 are provided on the outer surface that corresponds to the upper surface 23 and the lower surface 24 when the electric wire bundle 2 is covered with the film 22 (see FIG. 5).

In the film manufacturing process, similar to the film manufacturing process in Example 1, the upper surface 23 and the lower surface 24 of the film 22 are subjected to a printable surface treatment or surface processing (for example, corona treatment, addition of an embossed structure (embossing), etc.).

Next, the film coating process will be described.
The film covering step corresponds to a "package covering step" described in the claims. In the film covering step, the upper surface 5, the lower surface 6, and the outer peripheral surface 8 of the electric wire bundle 2 are covered with a film 22. Thereafter, the film 22 is heated to cause thermal shrinkage, thereby covering and packaging (surrounding) the electric wire bundle 2 with the film 22. At this time, an outlet 28 (see FIG. 4) is formed.

When covering the wire bundle 2 with the film 22, the upper surface 23 of the film 22 provided with the radial cutting means 26 and the circumferential cutting means 27 covers the upper surface 5 of the wire bundle 2, and the lower surface 24 of the film 22 provided with the radial cutting means 26 and the circumferential cutting means 27 covers the lower surface 6 of the wire bundle 2 (see FIG. 4). This completes the manufacturing process for the bundle-wound electric wire 21.

Next, the operation of drawing out the electric wire 4 from the bundled electric wire 21 will be described.
First, in FIG. 4 , for example, when pulling out the electric wires 4 from the inner circumferential surface 7 side of the electric wire bundle 2, an operator manually cuts off the radial cutting means 26 along the radial cutting means 26 from the pulling-out opening 28 side (the inner circumferential surface 7 side of the electric wire bundle 2).

Then, the worker turns over the end of the film 22 on the inner circumferential surface 7 side of the bundle of electric wires 2, and pulls out (unrolls) the electric wires 4 to the outside of the film 22. The operation of pulling out the electric wires 4 from the bundle of electric wires 21 is the same as in Example 1, so a detailed explanation is omitted.

Here, we will explain the operation of pulling out the electric wire 4 from the bundled electric wire 21 when the pull-out opening 28 is covered with the film 22 as shown in Figure 6.

The outlet 28 of the bundled electric wire 21 is usually formed concentrically from the central axis of the bundled electric wire 21, as shown in FIG. 4. Therefore, in this case, the center of the bundled electric wire 21 and the center of the outlet 28 coincide when viewed in a plan view.

On the other hand, as shown in FIG. 6, the center X2 of the outlet 28 of the bundled electric wire 21 may be shifted from the center X1 of the bundled electric wire 21. In this case, the outlet 28 is partially (or entirely) covered by the film 22 as shown in FIG. 6, which may cause concern that it may be difficult to pull out the electric wire 4.

Here, according to this embodiment, the operator can manually cut off the film 22 along the radial cutting means 26 and the circumferential cutting means 27. Therefore, even if the outlet 28 is covered by the film 22 as shown in FIG. 6, the electric wire 4 can be easily pulled out by cutting off a part of the film 22 (the part inside the circumferential cutting means 27 in FIG. 6) along the radial cutting means 26 and the circumferential cutting means 27 as shown in FIG. 7.

In addition, according to this embodiment, the radial cutting means 26 and the circumferential cutting means 27 are provided on the upper surface 23 and the lower surface 24 of the film 22, but not on the outer peripheral surface 25 of the film 22, so that the outer peripheral surface 25 is not cut along the radial cutting means 26 and the circumferential cutting means 27. Therefore, when pulling out the electric wires 4, even if the film 22 is cut along the radial cutting means 26 and the circumferential cutting means 27, the outer peripheral surface 25 is not cut, so that the electric wires 4 can be pulled out while maintaining the shape (cylindrical) of the electric wire bundle 2 at the outer peripheral surface 25.

Next, the effects of this embodiment will be described.
As described above with reference to FIGS. 4 to 7, according to this embodiment, the same effects as those of the first embodiment are achieved.

Of course, the present invention can be modified in many ways without departing from the spirit of the invention.

Reference Signs List 1, 21...Bundled electric wire, 2...Electric wire bundle, 3, 22...Film (package), 4...Electric wire, 5, 9, 23...Upper surface, 6, 10, 24...Lower surface, 7...Inner peripheral surface, 8, 11, 25...Outer peripheral surface, 12...Cutting means, 13, 28...Outlet, 14, 29...Outer edge, 26...Radial cutting means, 27...Circumferential cutting means, 30...One end, 31...Other end, R...Radius, X1...Center of bundled electric wire, X2...Center of outlet, Y...Middle part

Claims (5)

A wire bundle formed by winding electric wires in a cylindrical shape;
a packaging body that covers an outer surface of the electric wire bundle and has a pull-out opening formed so that the electric wires can be pulled out from an inner peripheral surface side of the electric wire bundle;
Equipped with
a radial cut-out means and a circumferential cut-out means formed so as to be able to cut out the packaging body are provided on at least one of the outer surfaces covering both end surfaces in the axial direction of the electric wire bundle among the outer surfaces of the packaging body;
the radial cutting means are formed in plurality so as to extend in a radial direction of the electric wire bundle around a central axis of the electric wire bundle,
At least one of the circumferential cutout means is formed concentrically around a central axis of the electric wire bundle ,
The outer surface of the packaging body that covers the outer peripheral surface of the electric wire bundle is not provided with a cutting means that is formed so as to be able to cut off the packaging body.
The bundled electric wire is characterized in that The bundle wound electric wire according to claim 1,
the radial cut-off means and the circumferential cut-off means are each a perforation formed in a broken line on the outer surface of the packaging body. The bundled electric wire according to claim 1 or 2,
the circumferential cutout means is provided at only one location in the radial direction between a radial middle portion of the bundled electric wire and an outer edge of the bundled electric wire. The bundled electric wire according to claim 1, 2 or 3,
The bundled electric wire, wherein the outer surface of the packaging body is formed to be printable. a packaging body manufacturing process for manufacturing a packaging body that covers an outer surface of an electric wire bundle obtained by winding electric wires in a cylindrical shape;
a packaging covering process for covering an outer surface of the electric wire bundle with the packaging and forming an outlet through which the electric wires can be drawn out from an inner peripheral surface side of the electric wire bundle;
Including,
In the packaging manufacturing process,
Among the outer surfaces of the packaging body, at least one of the outer surfaces covering both end faces in the axial direction of the electric wire bundle is provided with a plurality of radial cutting means capable of cutting off the packaging body and extending in the radial direction of the electric wire bundle centered on the central axis of the electric wire bundle when the outer surface of the electric wire bundle is covered with the packaging body, and at least one circumferential cutting means capable of cutting off the packaging body and formed concentrically from the central axis of the electric wire bundle is provided, and no cutting means formed to be capable of cutting off the packaging body is provided on the outer surface covering the outer circumferential surface of the electric wire bundle,
In the packaging covering step,
covering an outer surface of the electric wire bundle with the packaging body such that the outer surface of the packaging body provided with the radial cutting means and the circumferential cutting means covers at least one of both end surfaces in an axial direction of the electric wire bundle.

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