JP2006066218A - Flat cable with grounding wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat cable with grounding wire in which the grounding wire can be separated easily and execution workability at the time of wiring is improved, and burden of electric wiring work can be reduced. <P>SOLUTION: A plurality of insulating conductors 4 covering an insulating body 3 on a conductor 2 are arranged adjacently each other, and a grounding conductor 5 is arranged in parallel with the insulating conductors 4 in a state of separation from each other and is formed in one body by covering an insulating sheath 6 at the outer circumference. A flat cable 7 in which the plurality of insulating conductors 4 are covered with the insulating sheath 6 and a grounding wire 8 in which the grounding conductor 5 is covered with the insulating sheath 6 are attached externally independently and separately through a bridge part 9 consisting of the insulating sheath 6, and the ratio of the length and thickness of the bridge part 9 is made nearly 1:1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a flat cable with a ground wire in which a ground wire is attached to a flat cable in which a plurality of conductors are arranged in parallel in an isolated state and an insulating sheath is formed on the outer periphery. The present invention relates to a flat cable with a grounding wire that can be separated into two, can improve the workability during wiring, and can reduce the burden of electrical wiring work.

  Three electric power conductors 2 and an earth conductor 3 constituted by forming an insulation coating material 5 on a conductor 4 made of copper or the like are arranged in a row and covered with an external coating material 6 at a time. Insulated electric wires 1 for power distribution such as VVF (vinyl insulated vinyl sheathed cable), CVF (polyethylene insulated vinyl sheathed cable), EM-EEF (polyethylene insulated heat-resistant polyethylene sheathed cable) wires, etc. that have been formed in the past have been available. . And the insulated wire which can improve workability | operativity of wiring construction, can ensure the safety after wiring, can also improve appearance, and can confirm the position of the conducting wire for earthing from the outside is proposed. (For example, refer to Patent Document 1).

Japanese Utility Model Laid-Open No. 7-14513 (page 5, FIGS. 1-2)

  The insulated wire 10 described in Patent Document 1 includes three power conductors 12 and a ground conductor 14, and these conductors 12 and 14 are formed by covering a conductor 16 with an insulation coating material 18. The power conducting wire 12 and the grounding conducting wire 14 are arranged side by side and covered with an external coating material 20. The outer covering material 20 is formed in an 8-shaped cross section, and the outer covering material 20 separates the power conducting wire 12 and the ground conducting wire 14. That is, in the insulated wire 10 of Patent Document 1, since the outer covering material 20 is formed in an 8-shaped cross section, the outer covering material 20 can be divided into two parts, and the grounding conductor 14 and other conductors are separated from each other. Since it is separated by the outer covering material 20, the grounding conductor 14 and the other conductors can be divided in a state having the outer covering material 20.

  However, the insulated wire 10 of Patent Document 1 requires a considerable tearing load to divide the grounding conductor 14 and the other conductors even though the outer covering material 20 is formed in an 8-shaped cross section. For this reason, it is necessary to peel off the necessary length of covering with an electric knife, cutter, or the like, and to separate the grounding conductor 14 from the other conductors. Further, the conductor 14 for the ground wire must be wired by performing two stripping operations such as peeling off the insulating coating 18 covered with the grounding conductor 14 after the external covering member 20 is peeled and exposed. In other words, there is a problem that it takes time for wiring.

  An object of the present invention is to provide a flat cable with a ground wire that can easily separate the ground wire, improve the workability during wiring, and reduce the burden of electrical wiring work.

  The flat cable with a ground wire according to claim 1, wherein a plurality of insulated conductors each having a conductor coated with an insulator are arranged adjacent to each other, and the ground conductors are separated from each other in a state of being separated from the insulated conductors. A flat cable in which the insulating sheaths are integrally formed on the outer periphery, which are arranged in parallel, and the plurality of insulating conductors are covered with the insulating sheath, and an earth which is formed by covering the grounding conductor with the insulating sheath The wire is separated and independently attached via the bridge portion constituted by the insulating sheath, and the ratio of the length and thickness of the bridge portion is set to approximately 1: 1.

The flat cable with a ground wire according to claim 2, wherein a plurality of insulated conductors each having a conductor coated with an insulator are arranged adjacent to each other, and the ground conductors are separated from each other in a state of being separated from the insulated conductors. A flat cable in which the insulating sheaths are integrally formed on the outer periphery, which are arranged in parallel, and the plurality of insulating conductors are covered with the insulating sheath, and an earth which is formed by covering the grounding conductor with the insulating sheath A wire is separated and independently separated via a bridge portion constituted by the insulating sheath,
The length of the bridge portion is 0.3 mm to 1.5 mm, and the thickness of the bridge portion is 0.5 mm to 2.0 mm.

  In the flat cable with a ground wire according to claim 3, the thickness of the insulator constituting the outermost layer of the ground wire is 0.64 mm to 2.0 mm.

  According to the present invention, the ground wire can be easily separated, the workability in wiring can be improved, and the burden of electrical wiring work can be reduced.

  In the present invention, a plurality of insulated conductors that are coated with an insulator are arranged adjacent to each other, and ground wires constituted by the conductors are arranged in a state separated from the insulated conductors, and the outer circumferences of the plurality of insulated conductors are arranged. A flat cable is formed by covering the insulating sheath, and the flat cable and a ground wire formed by covering the conductor with the insulating sheath are separated and independently attached via the bridge portion, and the bridge portion This is realized by forming the lengths and thicknesses of the same size.

  In addition, the present invention arranges a plurality of insulated conductors that are formed by covering a conductor with an insulator, and arranges ground wires composed of the conductors in a state of being separated from the insulated conductors. A flat cable is formed by covering the outer periphery with an insulating sheath, and this flat cable and a ground wire formed by covering the conductor with an insulating sheath are separated and externally attached via a bridge portion. This is realized by setting the length of the bridge portion to 0.3 mm to 1.5 mm and the thickness of the bridge portion to 0.3 mm to 1.5 mm.

  Hereinafter, the Example of the flat cable with a ground wire which concerns on this invention is described in detail.

  FIG. 1 is an end view showing a first embodiment of a flat cable with a ground wire according to the present invention.

  In FIG. 1, a flat cable 1 with a ground wire has a plurality of insulated conductors 4 (three in the present embodiment) that are formed by covering a conductor 2 with an insulator 3 and are arranged adjacent to each other. Three insulated conductors 4 and a grounding conductor 5 are arranged in parallel in a state of being separated from the insulated conductor 4. The outer periphery of the plurality of insulated conductors 4 and the grounding conductors 5 arranged in parallel with the insulated conductors 4 in a state of being separated from the insulated conductors 4 are integrally formed by covering the outer circumference with the insulated sheath 6. A flat cable 7 formed by covering the insulating sheath 6 with the insulating conductor 4 (three in the present embodiment), and a ground wire 8 formed by covering the grounding conductor 5 with the insulating sheath 6 are formed. ing. Further, the flat cable 7 and the ground wire 8 are provided separately and independently by a bridge portion 9 constituted by the insulating sheath 6, and the ground wire 8 is externally attached to the flat cable 7. It is configured. In addition, a marking for identification is provided on the insulating sheath 6 of the ground wire 8.

The structural adjustment of the length A and the thickness B of the bridge portion 9 has a relationship as shown in Table 1.

  From Table 1, the length A of the bridge portion 9 has a minimum value of 0.3 mm and a maximum value of 1.5 mm. And the optimum value of the length A of the bridge part 9 is 0.7 mm. The thickness B of the bridge portion 9 has a minimum value of 0.5 mm and a maximum value of 1.5 mm. The optimum value of the thickness B of the bridge portion 9 is 0.7 mm. From this, it can be seen that the length A of the bridge portion 9 can be configured to be 0.3 mm to 1.5 mm, and the optimum value is 0.7 mm. Moreover, the thickness B of the bridge part 9 can be comprised by 0.5 mm-1.5 mm, and it turns out that the optimal value is 0.7 mm.

  Here, the length A of the bridge portion 9 is set to 0.3 mm to 1.5 mm. If the length A of the bridge portion 9 is not 0.3 mm or more, it is difficult to cut with a cutter or an electric knife. This is because if the length A of the portion 9 is less than 0.3 mm, it may be cut into the insulating sheath 6 of the flat cable 7 or the insulating sheath 6 of the ground wire 8. Further, when the length A of the bridge portion 9 exceeds 1.5 mm, in the case of continuous production, the bridge portion 9 is bent at the bridge portion 9 and the ground wire 8 is stuck to the flat cable 7 in some places. This is because there arises a problem that the structure shown in FIG. Furthermore, if the length A of the bridge portion 9 exceeds 1.5 mm, even if the thickness of the insulating sheath 6 of the ground wire 8 is 0.5 mm, it does not enter the staple No. 4 (for 3 × 2.6). is there.

  When the length A of the bridge portion 9 exceeds 1.5 mm, the bridge portion 9 is broken by the weight of the ground wire 8 immediately after extrusion (the insulating sheath 6 is not yet cooled). Alternatively, it may be broken and the ground wire 8 and the flat cable 7 may be bonded and molded as they are.

  The thickness B of the bridge portion 9 is set to 0.5 mm to 1.5 mm because the flat cable 1 with the ground wire is continuously produced when the thickness B of the bridge portion 9 is 0.5 mm or less. This is because there is a case where the bridge portion 9 may be cut at a portion. Then, if the thickness B of the bridge portion 9 exceeds 1.5 mm, it cannot be easily torn by hand without cutting with a cutter or an electric knife.

  Therefore, according to the present embodiment, the bridge portion 9 can be torn without using an electrician knife or cutter. In addition, according to the present embodiment, when the bridge portion 9 is torn, an electric knife or cutter is not used, so that the shape of the insulating sheath 6 can be maintained without damaging the insulating sheath 6 of the ground wire 8, and the blade can be used. It is safe because it is not used. Furthermore, according to the present embodiment, since the ground wire 8 is covered only with the insulating sheath 6, the ground conductor 5 can be exposed by a single peeling operation. Furthermore, according to this embodiment, since the marking for identification is provided on the insulating sheath 6 of the ground wire 8, the core can be identified from the outside. Moreover, according to the present Example, since only the insulation sheath 6 is coat | covered by the earth wire 8, it is comprised lightweight.

  FIG. 2 is an end view showing a second embodiment of the flat cable with ground wire according to the present invention.

  In FIG. 2, in the flat cable 10 with a ground wire, a plurality of insulated conductors 13 (three in the present embodiment) formed by covering a conductor 11 with an insulator 12 are arranged adjacent to each other. Three insulated conductors 13 and a grounding conductor 14 are arranged in parallel in a state of being separated from the insulated conductor 13. Then, the insulation sheath 15 is coated and integrally formed on the outer periphery of the plurality of insulated conductors 13 and the grounding conductors 14 arranged in parallel with the insulated conductors 13 in a state of being separated from the insulated conductors 13. A flat cable 16 is formed by covering the insulating sheath 15 with the three (in this embodiment, three) insulating conductors 4 and a ground wire 17 having the grounding conductor 14 covered with the insulating sheath 15. ing. Further, the flat cable 16 and the ground wire 17 are provided separately and independently by a bridge portion 18 constituted by the insulating sheath 15. The ground wire 17 is externally attached to the flat cable 16. It is configured. Further, a marking for identification is provided on the insulating sheath 15 of the ground wire 8.

As described above, the flat cable 10 with the ground wire is constituted by the ground conductor 14 in a state in which a plurality of the insulated conductors 13 formed by covering the conductor 11 with the insulator 12 are arranged adjacent to each other and separated from the insulated conductor 13. The ground wires are arranged parallel to each other in a state of being isolated from each other, and are integrally formed by covering an outer periphery with an insulating sheath, and the plurality of insulating conductors are covered with the insulating sheath and the flat cable is formed on the conductor. The ground wire formed by covering an insulating sheath is formed by forming a bridge portion by the insulating sheath and separating and externally attaching it,
A plurality of insulated conductors 13 covering the conductor 11 with the insulator 12 are arranged adjacent to each other, the grounding conductors 14 are arranged in parallel to each other in a state of being isolated from the insulated conductors 13, and an insulating sheath 15 is provided on the outer periphery. A flat cable 16 in which a plurality of insulated conductors 13 are coated with an insulating sheath 15 and a ground wire 17 in which the grounding conductor 14 is coated with the insulating sheath 15 are insulated sheaths. The bridge portion 18 is configured to be separated and independently attached via the bridge portion 18, the length of the bridge portion 18 is 0.3 mm to 1.5 mm, and the thickness of the bridge portion is 0.5 mm to 2.0 mm. Configure.

  Further, the flat cable 10 with the ground wire is configured by setting the thickness of the insulating sheath 15 covering the ground wire 17 to 0.64 mm to 2.0 mm.

The structural adjustment of the length C and thickness D of the bridge portion 18 and the thickness E of the insulation sheath 15 of the ground wire 17 has the relationship shown in Table 2, and the tearing load of the bridge portion 18 is The relationship with the thickness D of the bridge portion 18 is as shown in Table 3.

  From Table 2, the length C of the bridge portion 18 is the same as the length A of the bridge portion 9 in Table 1, the minimum value is 0.3 mm, the maximum value is 1.5 mm, and the optimum value is 0. 7 mm. Further, from Table 2, the thickness D of the bridge portion 18 is the same as the thickness B of the bridge portion 9 in Table 1, the minimum value is 0.5 mm, the maximum value is 1.5 mm, and the optimum value is 0. 0.7 mm.

  Also, from Table 2, the thickness E of the insulating sheath 15 of the ground wire 17 has a minimum value of 0.64 mm and a maximum value of 2.0 mm. The optimum value of the thickness E of the insulating sheath 15 of the ground wire 17 is 1.0 mm.

  Here, the length C of the bridge portion 18 is set to 0.3 mm to 1.5 mm for the same reason that the length A of the bridge portion 9 is set to 0.3 mm to 1.5 mm. And when the length C of the bridge part 18 exceeds 1.5 mm, even if the thickness of the insulation sheath 15 of the ground wire 17 is 0.64 mm which is the minimum value, the staple No. 4 (for 3 × 2.6) is obtained. Because it does not enter.

  The reason why the thickness D of the bridge portion 18 is set to 0.5 mm to 1.5 mm is the same reason that the thickness B of the bridge portion 9 is set to 0.5 mm to 1.5 mm. As is apparent from Table 3, the tear load with respect to the thickness D of the bridge portion 18 is 18N when the thickness D of the bridge portion 18 is 0.5 mm, and the thickness D of the bridge portion 18 is 0. It can be seen that the tearing load is the lowest when the thickness D of the bridge portion 18 is 23 N when the thickness D is 7 mm and when the thickness D of the bridge portion 18 is 1.5 mm and 40 N.

  The thickness E of the insulating sheath 15 of the ground wire 17 has a minimum value of 0.64 mm and a maximum value of 2.0 mm. The optimum value of the thickness E of the insulating sheath 15 of the ground wire 17 is 1.0 mm. From this, it can be seen that the thickness E of the insulating sheath 15 of the ground wire 17 can be configured to be 0.64 mm to 2.0 mm, and the optimum value is 1.0 mm. The thickness E of the insulating sheath 15 of the ground wire 17 is set to 0.64 mm to 2.0 mm if the thickness E of the insulating sheath 15 of the ground wire 17 is less than the minimum value of 0.64 mm. This is because when the thickness D is the optimum value (0.7 mm), if the bridge portion 18 is torn by hand, the insulating sheath 15 of the ground wire 17 is torn earlier than the bridge portion 18. The reason why the minimum value of the thickness E of the insulating sheath 15 as the ground wire 17 is 0.64 mm is that the thickness E of the insulating sheath 15 as the ground wire 17 is legally regulated. It is.

  Further, the thickness E of the insulating sheath 15 of the ground wire 17 is set to 2.0 mm or less because the thickness E of the insulating sheath 15 of the ground wire 17 exceeds 2.0 mm. This is because even if the thickness is 0.64 mm which is the minimum value, the staple No. 4 (for 3 × 2.6) is not entered. Furthermore, the thickness E of the insulating sheath 15 of the ground wire 17 is set to 2.0 mm or less, even if the thickness E of the insulating sheath 15 of the ground wire 17 exceeds 2.0 mm, it costs only. In addition, no advantage can be obtained from the technical aspect, and when the thickness E of the insulating sheath 15 of the ground wire 17 exceeds 2.0 mm, it is difficult to peel off the insulating sheath 15 with a stripper which is a device for peeling the insulating sheath 15. Because it becomes.

  Therefore, according to the present embodiment, the bridge portion 18 can be torn without using an electric knife or cutter, and there is no fear of an accident due to the electric knife or cutter, which is safe. Further, according to the present embodiment, when the bridge portion 18 is torn, an electric knife or cutter is not used, so that the shape of the insulating sheath 15 can be maintained without damaging the insulating sheath 15 of the ground wire 17. Furthermore, according to the present embodiment, since the ground wire 17 is covered only with the insulating sheath 15, the ground conductor 14 can be exposed by a single peeling operation. Furthermore, according to the present embodiment, when wiring to a distribution board or the like, normally the ground wire 17 is wired at a different location in a lump, so there is no need to peel off the insulation sheath 15 to an extra portion. Since only the ground wire 17 can be separated, the workability during wiring can be improved.

1 is an end view showing a first embodiment of a flat cable with a ground wire according to the present invention. The end elevation which shows the 2nd Example of the flat cable with a ground wire which concerns on this invention.

Explanation of symbols

1 ………………… Flat cable with ground wire 2 ……………… Conductor 3 ………………… Insulator 4 …………………… Insulated conductor 5 ……………… ... Earth conductor 6 ………………… Insulating sheath 7 ………………… Flat cable 8 ………………… Earth wire 9 ………………… Bridge part 10 ………… …… Flat cable with ground wire 11 ……………… Conductor 12 ……………… Insulator 13 ……………… Insulated conductor 14 ……………… Earth conductor 15 …………… ... Insulating sheath 16 .......... Flat cable 17 .......... Earth wire 18 ............... Bridge part

Claims (3)

Arrange a plurality of insulated conductors that are coated with an insulator adjacent to each other, arrange the conductors for grounding in a state of being isolated from the insulated conductors in parallel with each other, and cover the outer periphery with an insulating sheath to integrally form them. A flat cable formed by covering the plurality of insulated conductors with the insulating sheath, and a ground wire formed by covering the grounding conductor with the insulating sheath via a bridge portion constituted by the insulating sheath. Separate and independent and configured externally,
A flat cable with a ground wire, wherein the ratio of the length and thickness of the bridge portion is set to approximately 1: 1. Arrange a plurality of insulated conductors that are coated with an insulating material adjacent to each other, arrange the grounding conductors in parallel with each other in a state of being isolated from the insulated conductors, and coat the outer periphery with an insulating sheath to form an integral body A bridge formed by the insulating sheath, and a flat cable formed by covering the insulating sheath on the plurality of insulating conductors, and a ground wire covering the insulating sheath on a grounding conductor. Via a separate externally configured,
A flat cable with a ground wire, wherein the length of the bridge portion is 0.3 mm to 1.5 mm, and the thickness of the bridge portion is 0.5 mm to 2.0 mm.   The flat cable with a ground wire according to claim 2, wherein a thickness of an insulating sheath covering the ground wire is 0.64 mm to 2.0 mm.

Images