JP4003602B2 - Car body fixing structure of wire harness - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle body fixing structure for a wire harness, and more particularly, to easily fix a wire harness to an inner panel or an outer panel constituting the vehicle body.
[0002]
[Prior art]
Conventionally, a panel of an automobile is made of metal, and a wire harness routed in the automobile is attached by inserting and locking a clamp attached to the wire harness into an engagement hole formed in the door.
[0003]
For example, in the case of a rear door (tailgate) of a hatchback type automobile, a wire harness for supplying electric power to a high-mount stop lamp, a wiper, a rear heat wire, a key switch, etc. is applied to the door panel composed of an outer panel and an inner panel. In the car body assembly line (main line) at the manufacturer, the wire harness is routed while being locked to the panel with a clamp.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-336721
[Problems to be solved by the invention]
However, the work of wiring the wire harness to the vehicle body panel can be done by winding the band clamp in advance at the required interval at the wire harness manufacturer, or by locking the board clamp with tape and fixing it to the car manufacturer's book. Since many of these clamps are positioned and fixed on the line by inserting and locking them in the panel holes of the vehicle body panel, a large number of parts are required to fix the wire harness, and the work process in this line There were also many problems.
Therefore, in particular, in order to reduce the work process in this line, modularization is required in which the wire harness is fixed to the panel in advance.
[0006]
This invention is made | formed in view of the said problem, and makes it the subject to improve the wiring ease of the wire harness to the vehicle body panel comprised from an outer panel and an inner panel.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention resin-molds an inner panel and an outer panel of an automobile, and a space surrounded by the inner panel and the outer panel serves as a wiring space for the wire harness,
The inner panel or the outer panel, the trough shape obtained by projecting the side walls from both sides of the bottom wall, the spacing a pair of clamping pins spaced along the wiring path of the wiring space than the bottom wall While projecting by opening and integrally molding, ribs that stand from the bottom wall and connect the both side walls are provided at intervals along the routing path of the routing space ,
The wiring harness is wound around the outer peripheral surface of the elastic member at a same interval and projecting position of the clamping pins, greater than the distance the outer diameter of the pair of holding pins of the outer portion of the elastic member ; then, the wire harness passed through the outer portion of the elastic member between the clamping pin, in the bottom wall of the elastic member with by compressive deformation of the elastic member for positioning and fixing by the clamping pin those There is provided a vehicle body fixing structure for a wire harness, characterized in that a portion that is in contact with the elastic material and is not covered with the elastic material is placed on the rib .
[0008]
The inner panel may be formed by fiber reinforced resin, the peripheral edge and the inner panel and the outer panel secured with adhesive, that the clamping pin is protruded integrally molded from the inner panel preferable.
[0009]
In the present invention, the vehicle body panel because of the resin molding, the wire harness easily provided it is possible clamping pin for positioning and fixing a panel integrally molded. And since the inner panel and the outer panel are resin-molded, the weight of the vehicle body can be reduced.
In addition, it is possible to route the wire harness to the vehicle body panel simply by passing the elastic material wound around the outer peripheral surface of the wire harness between the clamping pins and compressing and deforming the elastic material to position and support the wire harness. And, it can be delivered to the main line of a car manufacturer in a modular state with a wire harness assembled to the panel, and the wiring and fixing work of the wire harness to the vehicle body is unnecessary, and the work process can be greatly reduced. Further, when assembling the wire harness, the process of attaching the clamp to the wire harness that has been required in the past can be eliminated, and the number of parts can be greatly reduced and the number of work steps can be reduced.
[0010]
The elastic material is made of a urethane sheet, and the urethane sheet is wound around the outer peripheral surface of the wire harness, and an adhesive tape is wound and fixed between both ends in the length direction and the wire harness, or an adhesive is applied to the back surface. The made urethane sheet is wound around the outer peripheral surface of the wire harness and fixed.
With the above configuration, an elastic material made of a urethane sheet is fixed to a required portion of the wire harness in advance, so that the wire harness can be easily fixed to the panel by passing the fixed portion through the clamping pin. it can. Further, by fixing the elastic material in advance to the required part of the wire harness, the fixing part of the wire harness can be easily grasped, and the wiring work of the wire harness can be facilitated.
[0011]
The inner panel is molded from fiber reinforced resin and has a concave cross section, and ribs that connect from the bottom wall to both side walls are spaced along the wiring path of the wire harness and project in a direction perpendicular to the wiring direction. The wire harness is disposed on the rib.
[0012]
With the above configuration, the rib that reinforces the inner panel can be used as a wire harness support frame, and the elastic material is brought into contact with the inner panel at the fixing point of the wire harness so that the wire harness is lifted from the panel without contacting the panel. Therefore, it is possible to prevent the wire harness from coming into contact with the panel due to vibration when the vehicle travels and generating abnormal noise.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment.
FIG. 1 shows a rear door 10 of a hatchback type automobile. The door 10 joins glass G to an opening of an outer panel 11 made of a resin molded product, and fiber reinforced resin molding on the inner surface side of the outer panel 11. The inner panel 12 made of a product is joined and formed.
[0014]
The outer panel 11 is integrally formed by pouring resin into a mold incorporating a spoiler (air resistance adjusting plate) or garnish (decorating plate), and the inner panel 12 is made of glass fiber mixed with resin such as polypropylene. It is integrally molded with fiber reinforced resin.
[0015]
FIG. 2 shows a cross-section of the pillar portion of the door 10, and the wire harness W / H is routed in the internal space surrounded by the bowl-shaped inner panel 12 and the outer panel 11.
As shown in FIGS. 3A, 3B, and 3C, the inner panel 12 has a main body portion 12a formed of a bottom wall 12a-1 projecting to the inner surface side, side walls 12a-2, and both side walls 12a-2. It consists of protruding adhesive fixing flanges 12a-3.
The rib-shaped main body 12a is provided with reinforcing ribs 12b that stand from the bottom wall 12a-1 and connect the side walls 12a-2. These ribs 12b are provided at a necessary interval along the wiring harness wiring direction, and are erected in a direction orthogonal to the wiring harness wiring direction.
[0016]
Two clamping pins 12c project from the central panel between adjacent ribs 12b of the inner panel 12 with a gap along the routing path.
[0017]
The distance L1 between adjacent ribs 12b in 100Mm～250mm, thickness L2 of the rib 12b is 1 mm to 5 mm, the diameter L3 of the clamping pin 12c is set to 1 mm to 5 mm.
Distance L4 clamping pin 12c is to be positioned secured by compressive deformation of the urethane sheet to be described later, but is slightly smaller than the diameter when wrapped with urethane sheet to the wire harness W / H.
[0018]
As shown in FIG. 4, the wire harness W / H fixed and routed to the inner panel 12 is obtained by winding a urethane sheet 20 around the outer peripheral surface of a required portion of the wire harness W / H bundled with tape. Adhesive tape T is wound around both ends of the sheet 20, and the urethane sheet 20 is fixed to the wire harness W / H.
[0019]
As shown in FIG. 4, the wire harness W / H urethane sheet 20 fixed to the passed between clamping pins 12c of the inner panel 12, wire clamping pin 12c by the compression deformation of the urethane sheet 20 harness W / H The cable is positioned and fixed.
[0020]
As described above, by pushing the urethane sheet 20 between the clamping pin 12c, the wire harness W / H and being attached to the inner panel 12, the adhesive 13 is applied to the flange portion 12a-3 of the inner panel 12 Thereafter, the outer panel 11 is bonded and temporarily bonded. Note that the adhesive 13 may be applied to the outer panel 11 side. Further, the glass G is also pasted and temporarily bonded to the outer panel 11 with the same kind of adhesive 13 interposed.
[0021]
Examples of the adhesive 13 include thermosetting adhesives such as polyurethane, amino resin, phenol resin, epoxy resin, unsaturated polyester, thermosetting acrylic resin, polyimide and / or silicon resin, and in particular, urethane-based adhesive. An agent is preferably used.
[0022]
As described above, after the inner panel 12 and the outer panel 11 in which the wire harness W / H is routed are bonded together, the entire rear door 10 is heat-treated so that the ambient temperature becomes about 70 to 140 ° C. The adhesive 13 is thermally cured, and a plurality of temporarily bonded portions are fixed together.
In this embodiment, since the urethane-based adhesive is used for thermosetting at an ambient temperature of 80 ° C., it is possible to use a general-purpose wire harness without using a heat-resistant wire harness W / H. ing.
[0023]
If it is set as the said structure, the wire harness W / H can be positioned and fixed to the inner panel 12 with the clamping pin 12c, and it can be set as the panel by which the wire harness was previously wired, and modularization can be achieved. Therefore, the process of wrapping the band clamp around the wire harness that was required in the past, the process of inserting and locking the band clamp into the panel hole of the vehicle body panel can be eliminated, and the work process can be greatly reduced. This eliminates the need for fixing parts, thus greatly reducing the number of parts.
Further, as shown in FIG. 4C, since the wire harness W / H is placed on the rib 12b and is floated and routed from the inner panel 12, an abnormal noise due to flapping of the wire harness W / H is generated. Occurrence can be prevented.
[0024]
In this embodiment, the urethane sheet is fixed to the wire harness by winding an adhesive tape around both ends of the urethane sheet wound around the outer peripheral surface of the wire harness, but the adhesive is applied to the back surface of the urethane sheet in advance, The wire harness may be wound around and fixed to the outer peripheral surface of the wire harness.
Moreover, as an application of the inner panel 12 having the above-described structure, it can be used for a side door, a bonnet, a roof, a trunk lid, or the like in addition to the above-described rear door.
[0025]
In the present embodiment, the wire harness W / H fixing structure is provided on the inner panel 12 side, but may be provided on the outer panel 11 side.
Further, the outer panel side may be a fiber reinforced resin molded product, the inner panel side may be a resin molded product, or both the outer panel side and the inner panel side may be fiber reinforced resin molded products, Both the panel side and the inner panel side may be resin molded products.
[0026]
FIG. 5 shows a modification of the first embodiment.
The wire harness W / H of the modified example has a smaller diameter than the wire harness W / H of the first embodiment, the winding amount of the urethane sheet 20 is increased, and the outer diameter of the wound urethane sheet 20 is the first diameter. It is the same as the embodiment.
The wire harness W / H is fixed to the inner panel 12 by the same method as in the first embodiment, and the inner panel 12 and the outer panel 11 are fixed.
[0027]
Thus, even if the inner panel 12 is a wire harness W / H having a different diameter, the wire harness W / H can be fixed to the inner panel 12 by changing the winding amount of the urethane sheet 20.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.
[0028]
【The invention's effect】
As is clear from the above description, according to the present invention, the wire harness can be routed and fixed to the vehicle body panel simply by previously routing the wire harness to the resin-molded inner panel or outer panel and fixing the wire harness at the wire harness fixing portion. Because it can, it can be easily modularized. Therefore, the process of attaching the clamp to the conventional wire harness, the process of inserting and locking the clamp into the panel hole of the vehicle body panel, and the like can be eliminated, and the work process can be greatly reduced. In addition, fixing parts such as clamps are not necessary, and the number of parts can be greatly reduced.
In addition, by placing the wire harness on the rib and floating it up from the inner panel, it is possible to prevent the generation of abnormal noise due to fluttering of the wire harness.
Furthermore, the wire harness of various diameters can be fixed to an inner panel by adjusting the winding amount of the elastic material wound around the wire harness.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a tailgate according to a first embodiment of the present invention.
2 is a cross-sectional view taken along the line II of FIG.
3A is a perspective view of a main part of an inner panel, FIG. 3B is a plan view of the main part, and FIG. 3C is a cross-sectional view.
4A is a plan view of the main part of the inner panel after the wire harness is fixed, FIG. 4B is a cross-sectional view, and FIG. 4C is a cross-sectional view.
5A and 5B show a modification of the first embodiment, in which FIG. 5A is a plan view of the main part of the inner panel after the wire harness is fixed, FIG. 5B is a cross-sectional view, and FIG. 5C is a cross-sectional view.
[Explanation of symbols]
10 Rear Door 11 Outer Panel 12 Inner Panel 12a Main Body 12b Rib 12c Nipping Pin 13 Adhesive 20 Urethane Sheet G Glass W / H Wire Harness

Claims (3)

The inner panel and outer panel of the automobile are molded with resin, and the space surrounded by the inner panel and outer panel is used as the wiring space for the wire harness.
The inner panel or the outer panel, the trough shape obtained by projecting the side walls from both sides of the bottom wall, the spacing a pair of clamping pins spaced along the wiring path of the wiring space than the bottom wall While projecting by opening and integrally molding, ribs that stand from the bottom wall and connect the both side walls are provided at intervals along the routing path of the routing space ,
The wiring harness is wound around the outer peripheral surface of the elastic member at a same interval and projecting position of the clamping pins, greater than the distance the outer diameter of the pair of holding pins of the outer portion of the elastic member ; then, the wire harness passed through the outer portion of the elastic member between the clamping pin, in the bottom wall of the elastic member with by compressive deformation of the elastic member for positioning and fixing by the clamping pin those A vehicle body fixing structure for a wire harness, characterized in that a portion that is in contact with and is not covered with the elastic material is placed on the rib .   The elastic material is made of a urethane sheet, and the urethane sheet is wound around the outer peripheral surface of the wire harness, and an adhesive tape is wound and fixed between both ends in the length direction and the wire harness, or an adhesive is applied to the back surface. The vehicle body fixing structure for a wire harness according to claim 1, wherein the urethane sheet thus formed is wound around and fixed to the outer peripheral surface of the wire harness. Said fixing a periphery with an adhesive material between the inner panel and the outer panel, a vehicle body structure for fixing the wire harness of the clamping pin according to claim 1 or claim 2 are protruded integrally molded from the inner panel .

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