JP2002078168A - WIRE HARNESS BUNDING TAPE AND WIRE HARNESS COMPOSED USING THE SAME - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Even if a wire harness is bent and mounted or installed in a place where bending vibration is received,
A wire harness that is easy to assemble and can reduce the generation of abnormal noise (unpleasant noise) generated from the relative movement of the sheet metal and the wire harness even when directly attached to the sheet metal of the vehicle body. Provided is a wire harness bundling tape used for construction. SOLUTION: A tape for bonding a wire harness, wherein an adhesive surface 13 is provided on one surface of a tape body 12, and a number of convex portions 14 are formed on a surface opposite to the adhesive surface. A wire harness, wherein a plurality of electric wires are spirally wound around and bound by the wire harness binding tape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness binding tape used for binding a plurality of electric wires constituting a wire harness, and a wire harness formed using the same.

[0002]

2. Description of the Related Art In vehicles, wire harnesses are often used to electrically connect various electronic and electrical components and devices. FIG. 1 shows a structure of a general wire harness. In the figure, reference numeral 1 denotes a wire harness. The wire harness 1 is formed by bundling a plurality of electric wires 2 and using a tape 4 around the bundle.
Is made by spirally winding. A connector 3 is connected to an end of the bundle of the plurality of electric wires 2, and connection to an electric system of the vehicle is performed via the connectors 3.

In a conventional wire harness, a tape having a configuration as shown in FIG. 2 is used as a tape 4 for binding the plurality of electric wires. That is, the tape has a structure in which an adhesive surface (adhesive surface) 5 is provided on one side of the tape main body 4 '. Then, as shown in FIG. 3, the tape is wound around a bundle of a plurality of electric wires 2 by so-called half-wrap winding and bound. The half-wrap winding is such that the adhesive surface of the tape portion of the next circumference is wound on the back surface (surface opposite to the adhesive surface) of the tape of the previous rotation approximately half the tape width.

In the wire harness 1 thus constructed, as described above, the adhesive surface of the next tape 4 is entirely adhered to the back half of the tape 4, so that the degree of adhesion is strong. As a whole, it is relatively strong against bending.

When the wire harness is mounted on a vehicle, the wire harness may be bent in accordance with the structure of the vehicle, or may be mounted in a place where bending vibration is applied (for example, from the body to the engine). There is. However, the wire harness having the above-described conventional configuration is relatively unsuitable for bending, and thus is not suitable for such assembling. In addition, when a conventional wire harness is directly attached to a sheet metal of a vehicle body, the sheet metal and the wire harness cause relative movement due to vibrations caused by running of an automobile, thereby causing abnormal noise (unpleasant sound). Had become.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and can be assembled even when the wire harness is bent and mounted or where it is subjected to bending vibration. And a wire harness capable of reducing the generation of abnormal noise (unpleasant noise) generated from the relative movement between the sheet metal and the wire harness even when the wire harness is directly attached to the sheet metal of the vehicle body, and the wire harness. It is an object of the present invention to provide a wire harness bundling tape used for this purpose.

[0007]

That is, according to the present invention, in order to solve the above-mentioned problems, an adhesive surface is provided on one side of a tape body, and a number of convex portions are formed on a surface opposite to the adhesive surface. A wire harness binding tape is provided. Further, according to the present invention, in the above configuration, when the large number of projections are in contact with the adhesive surface, the total contact area ratio is formed to be 10 to 30%. A tape for binding a wire harness is provided. Further, according to the present invention, there is provided a wire harness characterized in that a plurality of electric wires are spirally wound around and bound by the wire harness binding tape.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to specific examples. FIG. 4 is a sectional view showing an example of a wire harness bundling tape (hereinafter, sometimes referred to as a tape) according to the present invention. The tape 11 has an adhesive layer (adhesive surface) 13 formed on one side of a tape body 12 and a large number of projections 14 provided on the other surface of the tape body 12. As the material of the tape body 12, various conventionally known materials can be used, but it is preferable to use a relatively soft material. Examples of such a material include, for example, polypropylene, polyethylene, polyvinyl chloride, and the like. As the material of the adhesive layer 13, various conventionally known materials can be used, and examples thereof include a rubber-based adhesive and an acrylic-based adhesive.

The shape of the convex portion 14 can be any shape such as a cross section having a mountain shape, a trapezoidal cross section, or a rectangular cross section as shown in FIG. Further, the plurality of convex portions 14 may be two-dimensionally scattered in an island shape at an appropriate interval. The dimensions of the projections 14 are, as a preferred example, of a cross-sectional shape as shown in FIG.
mm and a width of about 0.5 to 2 mm. From the viewpoint of the flexibility and the binding property of the wire harness formed using this tape, the number of the convex portions 14 has a contact area ratio with the adhesive layer 14 of 10 to 30% when wound.
Preferably, it is formed so as to have a degree.

FIG. 5 shows a state in which a plurality of electric wires are bound by half-wrap winding using the tape. In the figure, reference numeral 15 denotes an electric wire constituting a wire harness. FIG. 6 shows a wire harness formed using the tape. 2 in the figure
1 is a wire harness, 22 is an electric wire constituting the wire harness, 23 is a connector, 24 is a tape, and 25 is a number of convex portions.

In the above description, a number of convex portions 14 (25)
Although the ones scattered in an island shape are illustrated, the number of the protrusions 14 is the same as that of the above, but along the width direction of the tape or along the direction inclined with respect to the width direction. It may have an extended shape that is continuous.

Next, the advantages of the wire harness formed by using the tape according to the present invention will be described in comparison with the conventional type. FIG. 7 is a partially enlarged view of the tape winding section according to the present invention, and FIG. 8 is a partially enlarged view of the conventional tape winding section. When the wire harness is bent, the state shown by a solid line as shown in FIG. 9 changes to the state shown by a two-dot chain line. At this time, the central portion of the wire in the drawing is not affected much by bending, but the outer peripheral portion and the inner peripheral portion in the drawing are affected by expansion and contraction, respectively. Here, in the case of the conventional product, since the adhesive surface is completely adhered to half of the back surface of the tape one lap before,
The degree of the adhesion becomes strong, the resistance to bending becomes large, and it is difficult to work when bending and assembling. However, according to the present invention,
Due to the large number of protrusions, the degree of adhesion becomes relatively loose, and a side slip occurs between the tapes against bending,
The whole wire harness becomes flexible. Therefore,
Even when bending and assembling, the work can be easily performed. Further, the product of the present invention can sufficiently maintain the binding property even in an assembly that does not bend. Furthermore, the product of the present invention can be mounted directly on a vehicle body,
Many convex parts provided on the tape become cushions,
It is possible to reduce the occurrence of abnormal noise (unpleasant noise) generated due to the relative movement between the sheet metal and the wire harness.

Next, an example of a method for manufacturing the wire harness binding tape of the present invention will be described. FIG. 10 shows a conventional roller for manufacturing a tape body, and FIG. 11 shows a roller for manufacturing the tape body of the present invention. In FIG. 10, 31 is an upper roller, and 32 is a lower roller. In FIG. 11, 31 is an upper roller and 32 'is a lower roller. The roller 32 'has a large number of concave portions having shapes complementary to the large number of convex portions. The upper and lower rollers are installed so that their longitudinal axes are parallel and rotatable. Further, a gap corresponding to the thickness of the tape body is provided between the upper and lower rollers. The base raw material before molding is rolled by passing between rotating upper and lower rollers to be formed into a tape body material having a required thickness. Thereafter, the tape is cut into an arbitrary tape width to form a tape body, and an adhesive is applied to one side to form a binding tape. FIG.
The tape body manufactured by the roller of No. 0 has a smooth surface on both sides. However, the tape body manufactured by the roller shown in FIG. 11 has a smooth surface on one side, and a surface on which a number of convex portions are formed on the other surface. FIG. 12 shows how the convex portions are formed.

The wire harness binding tape of the present invention is not manufactured only by the above method.
It is possible to manufacture by a variety of methods such as a method in which only the convex portion is separately manufactured and the convex portion is bonded to the surface of the conventional binding tape.

[0015]

According to the present invention, the wire harness bundling tape has the above-described structure, and the wire harness is manufactured using this tape. It is possible to provide a wire harness having a property. Therefore, even when the wiring harness is bent or mounted in a place subject to bending vibration, the assembling is easy, and even when the wiring harness is directly mounted on the metal plate of the vehicle body, the wiring harness is not required. Abnormal sound (unpleasant sound) generated from relative motion
Can be reduced.

[Brief description of the drawings]

FIG. 1 is a diagram showing a conventional wire harness.

FIG. 2 is a cross-sectional view of a conventional wire harness binding tape.

FIG. 3 is a cross-sectional view of a conventional wire harness wound in a half-wrap with a tape.

FIG. 4 is a sectional view of a tape for binding a wire harness according to the present invention.

FIG. 5 is a sectional view of a wire harness half-wrapped with a tape according to the present invention.

FIG. 6 is a diagram showing a wire harness formed using the tape according to the present invention.

FIG. 7 is a partially enlarged sectional view of a tape winding section according to the present invention.

FIG. 8 is a partially enlarged sectional view of a conventional tape winding portion.

FIG. 9 is a diagram showing a state in which a wire harness is bent.

FIG. 10 is a perspective view of a roller for manufacturing a conventional tape body.

FIG. 11 is a perspective view of a roller for manufacturing a tape body according to the present invention.

FIG. 12 is a cross-sectional view showing a state in which a convex portion is formed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Wire harness bundling tape 12 Tape body 13 Adhesive surface 14 Convex part 15 Electric wire 31 Wire harness 32 Electric wire 33 Connector 34 Wire harness bundling tape 35 Convex part 41 Roller 42 'Roller

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H02G 3/30 H02G 3/28 F // C09J 7/02 3/26 Z (72) Inventor Masatomo Motokawa 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in Harness Research Institute, Inc. (reference) 4J004 AA04 AA05 AA10 AB01 CA04 CA05 CC05 CE01 FA08 GA01 5G309 AA10 HA01 5G363 AA07 AA20 BA02 DA20 DC02

Claims (3)

[Claims] 1. A tape for binding a wire harness, wherein a tape body has an adhesive surface on one surface and a number of convex portions are formed on a surface opposite to the adhesive surface. 2. The wire according to claim 1, wherein the plurality of projections are formed such that when the plurality of projections come into contact with the adhesive surface, the total contact area ratio is 10 to 30%. Harness binding tape. 3. A wire harness, wherein a plurality of electric wires are spirally wound around and bound by the wire harness binding tape according to claim 1 or 2.