JP7221137B2 - Harness mounting structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a structure for attaching a wiring harness of a vehicle to an interior material.

Wire harnesses for power supply and signal transmission to electrical equipment such as room lamps are routed on the roof of an automobile. Many recent automobiles adopt a roof structure in which a molded ceiling is attached to the inner surface of the roof panel of the vehicle body with spacers in between. It is fixed with double-sided tape on the bottom of the Also, the wire harness is pulled out from the end of the molded ceiling between the A-pillar (front pillar) of the vehicle body and the A-pillar cover attached to the inner surface of the vehicle body, and led to the front side of the dashboard through the gap.

JP 2007-97283 A

The molded ceiling 91, as shown in FIG. There are shapes. The wire harness 94 is bent along the curved portion 93 of the molded ceiling 91 , and is attached to the portion including the edge 92 of the molded ceiling 91 with double-sided tape 95 so that the bent state is maintained along the curved portion 93 . Fixed.

However, if the curvature radius of the curved portion 93 of the molded ceiling 91 is small and the curved portion 93 and the edge 92 are close to each other, the wire harness 94 may be separated from the double-sided tape 95 by the restoring force due to its rigidity and float. If the floating wire harness 94 protrudes outside the groove, the wire harness 94 may get caught between the molded ceiling 91 and the spacer when the molded ceiling 91 is attached to the roof panel.

SUMMARY OF THE INVENTION An object of the present invention is to provide a harness mounting structure capable of suppressing floating of a wire harness from an interior material such as a molded ceiling.

In order to achieve the above object, a harness mounting structure according to the present invention is a structure for mounting a wire harness of a vehicle to an interior material, wherein an elastically deformable mounting tube is interposed between the wire harness and the interior material. The mounting tube includes a first mounting portion attached to the wire harness, and a folded portion folded back on one side of the first mounting portion in the extending direction of the wire harness and on the other side on the opposite side. and an adhesive portion extending from the folded portion to the other side, overlapping the first mounting portion, and bonded to the interior material, and an adhesive portion extending to the other side from the bonding portion and attached to the wire harness at a position on the other side with respect to the first mounting portion. and a second mounting portion attached thereto.

In this structure, a mounting tube is interposed between the wire harness and the interior material. The attachment tube has a first attachment portion, a folded portion, an adhesive portion, and a second attachment portion. The first attachment portion is attached to the wire harness. The folded portion is folded back on one side in the extending direction of the wire harness to the other side opposite to the first mounting portion. The adhesion portion overlaps the first attachment portion and is adhered to the interior material. The second attachment portion extends from the adhesive portion to the other side and is attached to the wire harness at a position on the other side with respect to the first attachment portion.

Since the first attachment portion and the adhesive portion overlap each other and are not fixed to each other, the folded portion is elastic so that the first attachment portion and the adhesive portion are separated from each other when the wire harness is lifted from the interior material. transform. The elastic deformation of the folded portion absorbs the energy of the force acting on the wire harness. Further, since the mounting tube is tubular, when a force is applied to the wire harness to lift it from the interior material, the bonding portion is elastically deformed so as to expand in the overlapping direction with the first mounting portion. This elastic deformation of the bonding portion also absorbs the energy of the force acting on the wire harness. Therefore, when the wire harness is lifted up from the interior material, the force can be suppressed from being transmitted to the interface between the adhesive portion and the interior material. As a result, it is possible to suppress peeling of the adhesive part from the interior material, and it is possible to suppress the wire harness from being peeled off and floating from the interior material.

Furthermore, by adhering the attachment tube to the interior material in a flattened state, a large adhesion area can be secured between the adhesion part and the interior material, and the adhesive force between the adhesion part and the interior material can be strengthened. be able to. As a result, it is possible to further suppress the adhesion portion from being separated from the interior material, and to further suppress the wire harness from being separated from the interior material and floating.

The first attachment portion may be attached to the wire harness by collectively winding the adhesive tape around the wire harness and the first attachment portion. This can effectively prevent the first attachment portion from coming off the wire harness.

The second attachment portion may be attached to the wire harness by collectively winding the adhesive tape around the wire harness and the second attachment portion. This can effectively prevent the second attachment portion from coming off the wire harness.

The adhesive tape wound around the first mounting portion may have a different color from the adhesive tape wound around the second mounting portion. As a result, the work of attaching the wire harness to the interior material can be performed using the adhesive tape wound around the first attachment portion as a mark. As a result, the positions of the wire harnesses can be kept constant between individual vehicles.

ADVANTAGE OF THE INVENTION According to this invention, it can suppress that a wire harness floats from interior materials, such as a molded ceiling.

It is a side view showing harness attachment structure concerning one embodiment of the present invention. It is a side view which shows some wiring harnesses and a tube for attachment. FIG. 3 is a cross-sectional view of the wire harness and mounting tube along section line AA shown in FIG. 2; FIG. 3 is a cross-sectional view of the wire harness and mounting tube taken along section line BB shown in FIG. 2; It is a side view which shows the conventional harness attachment structure.

BEST MODE FOR CARRYING OUT THE INVENTION Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<Harness mounting structure>
FIG. 1 is a side view showing a harness mounting structure according to one embodiment of the invention.

A wire harness 1 is a roof harness that is routed on the roof of an automobile for power supply to electrical equipment such as room lamps and for signal transmission. there is

The roof of an automobile has a structure in which a molded ceiling 2, which is an example of a ceiling interior material (headlining), is attached to the inner surface of a roof panel (not shown) of a vehicle body with spacers (not shown) interposed therebetween. A harness wiring groove is formed on the rear surface of the molded ceiling 2, that is, the surface on the roof panel side. The wire harness 1 extends along the groove and is adhered to the bottom surface 3 of the groove at a plurality of points with double-faced tape 4. - 特許庁Also, the wire harness 1 is pulled out from an end 5 of the molded ceiling 2 between an A-pillar (front pillar) of the vehicle body and an A-pillar cover (not shown) attached to the inner surface thereof.

The molded ceiling 2 is curved near the edge 5 where it connects to the A-pillar cover and slopes down towards the A-pillar cover between the curved portion 6 and the edge 5 . The double-faced tape 4 is also attached to the downwardly inclined portion. Specifically, the double-sided tape 4 is adhered to the bottom surface 3 so as to extend from the edge 5 of the molded ceiling 2 to a position beyond the curved portion 6 in the groove formed in the molded ceiling 2 .

The wire harness 1 is directly adhered to the double-sided tape 4 at a position away from the curved portion 6 of the molded ceiling 2 on the side opposite to the end 5 side, and on the downwardly inclined portion between the end 5 and the curved portion 6 , is adhered to the double-sided tape 4 via the mounting tube 7 .

<Mounting tube>
FIG. 2 is a side view showing a portion of the wire harness 1 and the mounting tube 7. FIG. FIG. 3 is a cross-sectional view of the wire harness 1 and the mounting tube 7 taken along line AA shown in FIG. FIG. 4 is a cross-sectional view of the wire harness 1 and the mounting tube 7 taken along line BB shown in FIG. 3 and 4, with respect to the wire harness 1, only the outer shape of the tube that bundles a plurality of wires is shown, and the tube and its inner cross section are not shown.

The mounting tube 7 is an elastically deformable tube, for example, a vinyl chloride resin tube having a wall thickness of 0.5 mm, and is used in a state of being flattened. The attachment tube 7 integrally has a first attachment portion 11, a folded portion 12, an adhesion portion 13, and a second attachment portion .

The first attachment portion 11 is one end portion of the attachment tube 7 . By collectively winding the adhesive tape 15 around the wire harness 1 and the first attachment portion 11 , the first attachment portion 11 is bent in an arc shape along the outer peripheral surface of the wire harness 1 . Attached to harness 1.

The folded portion 12 is located on one side of the wire harness 1 with respect to the first mounting portion 11, that is, on the A-pillar side when the wire harness 1 is mounted on the molded ceiling 2 (hereinafter simply referred to as the "A-pillar side"). ”), and the mounting tube 7 is folded back on the opposite side to form a substantially U-shape or hairpin shape.

The adhesive portion 13 extends from the folded portion 12 to the side opposite to the A-pillar side and overlaps the first mounting portion 11 . The surface of the bonding portion 13 opposite to the first mounting portion 11 side is formed substantially flat.

The second mounting portion 14 further extends from the bonding portion 13 to the side opposite to the A-pillar side, and is mounted to the wire harness at a position on the other side with respect to the first mounting portion 11 . By collectively winding the adhesive tape 16 around the wire harness 1 and the second mounting portion 14 , the second mounting portion 14 is bent in an arc shape along the outer peripheral surface of the wire harness 1 . Attached to harness 1.

Then, as shown in FIG. 1, the mounting tube 7 is attached to the rear surface of the molded ceiling 2 (grooved) so that the position of the end 17 of the adhesive tape 15 on the A-pillar side and the position of the end 5 of the molded ceiling 2 are aligned. The surface of the adhesive tape 16 disposed on the bottom surface 3) and wound on the surface of the adhesive portion 13 opposite to the first attachment portion 11 side and the second attachment portion 14 is one adhesive surface of the double-sided tape 4, That is, it is adhered to the adhesion surface on the side opposite to the molded ceiling 2 side.

<Effect>
As described above, in the mounting tube 7 , the first mounting portion 11 and the bonding portion 13 overlap each other and are not fixed to each other. The folded portion 12 is elastically deformed so that the attaching portion 11 and the bonding portion 13 are separated from each other. The energy of the force acting on the wire harness 1 is absorbed by the elastic deformation of the folded portion 12 . Further, since the mounting tube 7 has a tubular shape, when the wire harness 1 is lifted from the molded ceiling 2, the bonding portion 13 is elastically deformed so as to expand in the overlapping direction with the first mounting portion 11. . The energy of the force acting on the wire harness 1 is also absorbed by the elastic deformation of the bonding portion 13 . Therefore, when the wire harness 1 is lifted up from the molded ceiling 2 , the force can be prevented from being transmitted to the interface between the bonding portion 13 and the molded ceiling 2 . As a result, it is possible to prevent the adhesive part 13 from being peeled off from the molded ceiling 2 and to prevent the wire harness 1 from being peeled off from the molded ceiling 2 and floating.

Furthermore, the adhesive portion 13 of the mounting tube 7 is flattened and the surface of the adhesive portion 13 opposite to the first mounting portion 11 side is formed into a substantially flat surface, so that the adhesive portion 13 and the double-sided tape 4 can be secured, and the adhesive force between the adhesive portion 13 and the double-sided tape 4 can be strengthened. As a result, it is possible to further suppress the adhesion portion 13 from being separated from the molded ceiling 2 , and to further suppress the wire harness 1 from being separated from the molded ceiling 2 and floating.

The adhesive tape 15 wound around the first mounting portion 11 may have a different color from the adhesive tape 16 wound around the second mounting portion 14 . As a result, the color serves as a mark when the end 17 of the adhesive tape 15 is aligned with the end 5 of the molded ceiling 2, and the work of attaching the wire harness 1 to the molded ceiling 2 can be performed accurately. As a result, the position of the wire harness 1 can be made constant between individual vehicles.

<Modification>
Although one embodiment of the present invention has been described above, the present invention can also be implemented in other forms.

For example, in the above-described embodiment, the wire harness 1 is attached to the molded ceiling 2 with the double-sided tape 4, but the wire harness 1 may be attached to the molded ceiling 2 using an adhesive.

In FIG. 2, the adhesive tape 15 is tightly wound around the wire harness 1 and the first mounting portion 11 so that the first mounting portion 11 is flattened. The first mounting part 11 may be elastically deformable so as to expand in the overlapping direction with the bonding part 13 when the wire harness 1 is lifted up from the molded ceiling 2 by reducing the amount of crushing. As a result, when the wire harness 1 is lifted up from the molded ceiling 2, the energy of the force acting on the wire harness 1 is absorbed by the elastic deformation of the first mounting portion 11 as well. As a result, it is possible to further suppress the adhesion portion 13 from being separated from the molded ceiling 2 , and to effectively suppress the wire harness 1 from being separated from the molded ceiling 2 and floating.

In addition, various design changes can be made to the above configuration within the scope of the matters described in the claims.

1: Wire harness 2: Molded ceiling (interior material)
7: Mounting tube 11: First mounting part 12: Folding part 13: Bonding part 14: Second mounting part

Claims (1)

A structure for attaching a wire harness of a vehicle to an interior material,
An elastically deformable mounting tube is interposed between the wire harness and the interior material,
The mounting tube is
a first attachment portion attached to the wire harness;
a folded portion folded back on one side of the first mounting portion in the extending direction of the wire harness to the other side opposite thereto;
a bonding portion extending from the folded portion to the other side, overlapping the first attachment portion, and bonded to the interior material;
and a second mounting portion extending from the bonding portion to the other side and mounted to the wire harness at a position on the other side with respect to the first mounting portion.

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