JP2004136711A - Fixing structure of wire harness to car body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate wiring a wire harness to a car body panel. <P>SOLUTION: An inner panel and an outer panel of an automobile are molded by resin, and a space surrounded by the inner panel and the outer panel is formed as a wiring space of the wire harness. A wire harness fixing part composed of a pair of winding piece and fastening piece is projected at an interval along a wiring passage of the wiring space from the inner panel or the outer panel. While a locking part is arranged on the tip in a slender plate shape of setting a projecting quantity of the winding piece to a dimension not less than the half circumference of the wire harness, the fastening piece oppositely projected with clearance not less than an outer diameter of the winding piece and the wire harness is a slender plate shape, and a locking object part is arranged on the tip. The wire harness is inserted between the winding piece and the fastening piece, and the wiring piece is curved to the fastening piece side while running along the outer periphery of the wire harness, and the locking part of the wiring piece is locked on the locking object part of the fastening piece, and the wire harness is positioned and supported. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle body fixing structure of a wire harness, and more particularly, to fixing a wire harness to an inner panel or an outer panel constituting a vehicle body without using a separate member.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a panel of a vehicle is made of metal, and a wire harness routed to the vehicle is attached by inserting and locking a clamp attached to the wire harness into a locking hole formed in a door.
[0003]
For example, in the case of a rear door (tailgate) of a hatchback type automobile, a wire harness for supplying power to a high-mount stop lamp, a wiper, a rear heating wire, a key switch, and the like is provided on a door panel including an outer panel and an inner panel. On the vehicle assembly line (this line) of the manufacturer, the wire harness is wired while being locked to the panel with a clamp.
[0004]
[Patent Document 1]
JP-A-11-336721 [0005]
[Problems to be solved by the invention]
However, the work of arranging the wire harness on the vehicle body panel is performed by a wire harness maker winding and locking a band clamp at a predetermined interval in advance, or fixing a board type clamp to a tape and fixing it by a car maker. In the line, these many clamps are positioned and fixed by inserting and locking them into the panel holes of the vehicle body panel, so that a large number of parts are required for fixing the wire harness, and the work process in this line There were also many problems.
Therefore, in order to reduce the number of work steps in this line, there is a demand for a module in which a wire harness is routed in a state where it is fixed to a panel in advance.
[0006]
The present invention has been made in view of the above problems, and has as its object to improve the ease of wiring a wire harness to a vehicle body panel including an outer panel and an inner panel.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is to form an inner panel and an outer panel of an automobile with a resin, and to use a space surrounded by the inner panel and the outer panel as a wiring harness wiring space,
At a distance from the inner panel or the outer panel along the wiring path of the wiring space, a wire harness fixing portion composed of a pair of winding pieces and a stopper piece is protruded, and the amount of protrusion of the winding piece Is an elongated flat plate shape having a dimension of not less than half the circumference of the wire harness, and a locking portion is provided at the tip thereof, while the winding piece and the wire harness are projected so as to face each other with a gap equal to or more than the outer diameter of the wire harness. The stop piece is an elongated flat plate with a locked part at its tip,
A wire harness is passed between the wound piece and the stop piece, and the wound piece is bent to the stop piece side along the outer periphery of the wire harness, and the wound piece is locked to the locked portion of the stop piece. The present invention provides a vehicle body fixing structure for a wire harness, wherein the wire harness is positioned and supported by locking portions.
[0008]
The inner panel may be molded from a fiber reinforced resin, the inner panel and the outer panel are fixed at their peripheral edges with an adhesive, and the wound piece and the stopper piece are integrally formed from the inner panel to protrude therefrom. I have.
[0009]
In the present invention, since the vehicle body panel is formed by resin molding, the wire harness fixing portion can be easily provided integrally with the panel. In addition, since the inner panel and the outer panel are formed of resin, the weight of the vehicle body can be reduced.
A wiring harness is routed in a space surrounded by the inner panel and the outer panel to achieve modularization. The wire harness is passed between the wound piece and the stop piece, and the wound piece is bent to the stop piece side along the outer periphery of the wire harness. The wire harness can be routed to the panel simply by locking and positioning the wire harness. In this way, it can be delivered to the car manufacturer's main line in a modularized state in which the wire harness is assembled to the panel, eliminating the need to wire and fix the wiring harness to the car body on this line, greatly reducing the work process it can. In addition, even when assembling the wire harness, the step of attaching the clamp to the wire harness, which has been conventionally required, can be eliminated. Further, since no adhesive or the like is required, the number of parts can be greatly reduced and the number of work steps can be reduced.
[0010]
The winding piece has a wide surface in the wiring harness wiring direction, while the stop piece has a wide surface in a direction perpendicular to the wiring harness wiring direction. The portion is composed of an insertion groove cut from the tip and a groove to be inserted, and the insertion groove is inserted and locked into the insertion groove in the orthogonal direction.
In the above configuration, when the insertion groove of the winding piece is inserted and locked in the insertion groove in the orthogonal direction of the stop piece, the winding piece can be locked to the stop piece in a state where the wire harness is tightened.
If either the insertion groove or the insertion groove is formed with a step, it can be locked at each step position and the insertion depth can be adjusted, so that even if the wire harness diameter changes, the wire harness The wound piece can be closely attached to the outer peripheral surface, the wire harness can be securely fixed at the wire harness fixing portion without displacement, and generation of abnormal noise due to rattling during traveling of the vehicle can be prevented.
[0011]
Alternatively, the locking portion of the winding piece and the locked portion of the stopper piece may be claws that lock with each other.
Also in the case of the above configuration, since the winding piece is locked to the stopper piece in a state where the wire harness is tightened, the wire harness can be securely fixed without shifting.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment, and FIG. 1 shows a rear door 10 of a hatchback type automobile.
The door 10 is formed by joining glass G to an opening of an outer panel 11 made of a resin molded product, and joining an inner panel 12 made of a fiber-reinforced resin molded product to the inner surface side of the outer panel 11.
[0013]
The outer panel 11 is integrally molded by pouring a resin into a mold incorporating a spoiler (air resistance adjusting plate) and a garnish (decorative plate). The inner panel 12 is obtained by mixing glass fiber with a resin such as polypropylene. It is integrally molded with fiber reinforced resin.
[0014]
FIG. 2 shows a cross section of a pillar portion of the door 10, and a wire harness W / H is routed in an internal space surrounded by an inner panel 12 and an outer panel 11 having a concave cross section.
As shown in FIGS. 3 (A), 3 (B) and 3 (C), the inner panel 12 has a main body 12a having a bottom wall 12a-1 protruding inward, two side walls 12a-2, and two side walls 12a-2. And a protruding adhesive fixing flange 12a-3.
The main body portion 12a having the concave cross section is provided with a reinforcing rib 12b which stands from the bottom wall 12a-1 and connects the side walls 12a-2. These ribs 12b are provided at a required interval along the wiring direction of the wiring harness, and are erected in a direction orthogonal to the wiring direction of the wiring harness.
[0015]
A wire harness fixing portion 14 composed of a pair of winding pieces 14a and stopper pieces 14b is protruded at a center position between adjacent ribs 12b of the inner panel 12 at intervals along a wiring route. .
The projecting amount of the winding piece 14a is not less than a half circumference of the wire harness and is a long and narrow flat plate having a wide wiring harness arranging direction. And On the other hand, the stop piece 14b, which protrudes and is opposed to the winding piece 14a with a guide space S for inserting the wire harness therethrough, is formed in an elongated flat plate shape having a wide surface in a direction orthogonal to the wiring direction of the wire harness. Like the piece 14a, an insertion groove cut from the tip is provided to form the locked portion 14b-1. The groove width and groove depth of the insertion groove of the locking portion 14a-1 and the insertion groove of the locked portion 14b-1 are substantially the same. Further, in order to smoothly insert and lock the winding piece 14a to the stopper piece 14b and maintain this locking force, the groove width of the insertion groove is slightly larger than the plate thickness of the winding piece 14a and the stopper piece 14b. The depth of the groove is half the height of the stopper 14b.
[0016]
The interval L1 between the adjacent ribs 12b is 100 mm to 250 mm, the thickness L2 of the rib 12b is 1 mm to 5 mm, and the width L3 of the wound piece 14a and the stop piece 14b is 5 mm to 20 mm.
The gap L4 between the winding piece 14a and the stopper piece 14b is set in correspondence with the outer diameter of the wire harness W / H to be inserted. ≧ (wire harness diameter).
[0017]
As shown in FIG. 4B, a wire harness W / H is inserted into and routed from the inner panel 12 in the guide space S between the winding piece 14a and the stopper piece 14b.
At this time, it is preferable that a mark tape be wound around the wire harness W / H around a portion to be located at the wire harness fixing portion 14.
[0018]
Next, as shown in FIG. 4 (C), the winding piece 14a is bent toward the stop piece 14b along the outer periphery of the wire harness W / H, and wound around the locked portion 14b-1 of the stop piece 14b. The wire harness W / H is positioned and supported by inserting and locking the locking portion 14a-1 of the attachment piece 14a, and the wire harness W / H is routed in the inner panel 12 as shown in FIG. .
[0019]
As described above, after the wire harness W / H is sandwiched between the wrapping piece 14a and the stopper piece 14b and is attached to the inner panel 12, the adhesive 13 is applied to the flange 12a-3 of the inner panel 12. And the outer panel 11 are pasted and temporarily bonded. The adhesive 13 may be applied to the outer panel 11 side. The glass G is also temporarily bonded to the outer panel 11 with the same type of adhesive 13 interposed therebetween.
[0020]
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 silicone resin. Agents are preferably used.
[0021]
As described above, after the inner panel 12 and the outer panel 11 in which the wire harness W / H is routed are adhered to each other, the entire rear door 10 is heat-treated so that the ambient temperature is about 70 to 140 ° C. Is applied to thermally cure the adhesive 13 to fix a plurality of temporary bonding portions at once.
In this embodiment, since the thermosetting is performed at an ambient temperature of 80 ° C. using a urethane-based adhesive, a general-purpose wire harness can be used without using a heat-resistant wire harness W / H. ing.
[0022]
With the above configuration, the wire harness W / H can be fixed to the inner panel 12 by the wire harness fixing portion 14, and a panel in which the wire harness is routed in advance can be modularized. Therefore, the step of winding the band clamp around the wire harness, the step of inserting and locking the band clamp into the panel hole of the vehicle body panel, and the like, which have been conventionally required, can be eliminated, and the number of work steps can be greatly reduced. This eliminates the need for fixing parts, thus greatly reducing the number of parts.
Further, as shown in FIG. 5C, by pushing the wire harness W / H downward into the guide space S between the winding piece 14a and the stopper piece 14b, the excess length of the wire harness W / H is absorbed. In addition, generation of abnormal noise due to flapping of the wire harness W / H can be prevented.
[0023]
In addition, as an application of the inner panel 12 having the above structure, the inner panel 12 is preferably used for a side door, a hood, a roof, a trunk lid, and the like, in addition to being used as the above-mentioned rear door.
In this 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.
Also, the outer panel side may be a fiber-reinforced resin molded article, the inner panel side may be a resin molded article, or both the outer panel side and the inner panel side may be fiber-reinforced resin molded articles, or Both the panel side and the inner panel side may be resin molded products.
[0024]
6 and 7 show a second embodiment.
As shown in FIGS. 6A, 6B, and 6C, the inner panel 22 of the present embodiment includes a main body 22a having a bottom surface 22a-1 and a side surface 22a-2, as in the first embodiment. Reinforcing ribs 22b protrude from the inner surface at intervals, and a pair of wrapping pieces 24a and stopper pieces 24b are provided at a central position between adjacent ribs 22b along the routing path. And a wire harness fixing portion 24 comprising:
[0025]
The projecting amount of the above-mentioned winding piece 24a is not less than a half circumference of the wire harness and is a long and narrow flat plate having a wide wiring harness arranging direction. It is set to 1. On the other hand, the stop piece 24b projecting opposite to the winding piece 24a with the guide space S therebetween is a long and narrow flat plate having a wide surface in the wiring harness wiring direction. It is bent to the opposite side of the attachment piece 24a to form a locked portion 24b-1.
[0026]
As shown in FIG. 7, the wire harness W / H is inserted into the guide space S between the winding piece 24a and the stopper piece 24b of the inner panel 22, and the winding piece 24a is formed around the outer periphery of the wire harness W / H. The wire harness W / H is attached to the inner panel 22 by bending the locking piece 24b to the side of the locking piece 24b while hooking the locking portion 24a-1 of the winding piece 24a on the locked portion 24b-1 of the locking piece 24b. It is fixed.
Next, similarly to the first embodiment, the inner panel 22 is bonded to the outer panel 11 with the adhesive 13, and the glass G is also bonded to the outer panel 11 with the same type of adhesive 13 interposed therebetween. By applying the adhesive, the adhesive 13 is thermally cured, and a plurality of temporary bonding portions are fixed together.
[0027]
With the above configuration, similarly to the first embodiment, the wire harness W / H can be fixed to the inner panel 22 by the wire harness fixing portion 24, and a panel in which the wire harness is routed in advance can be modularized. be able to. Therefore, the step of winding the band clamp around the wire harness, the step of inserting and locking the band clamp into the panel hole of the vehicle body panel, and the like, which have been conventionally required, can be eliminated, and the number of work steps can be greatly reduced. This eliminates the need for fixing parts, thus greatly reducing the number of parts.
Note that the other configuration is the same as that of the first embodiment, and the description is omitted.
[0028]
【The invention's effect】
As is apparent from the above description, according to the present invention, it is possible to wire and fix the wiring harness to the vehicle body panel simply by wiring it in advance on the resin-molded inner panel or outer panel and fixing it with the wire harness fixing portion. It can be easily modularized. Therefore, the step of attaching a clamp to the conventional wire harness, the step of inserting and locking the clamp in the panel hole of the vehicle body panel, and the like can be eliminated, and a significant reduction in the number of work steps can be achieved. Further, since fixing parts such as clamps are not required, the number of parts can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a tailgate according to a first embodiment of the present invention.
FIG. 2 is a sectional view taken along line II of FIG.
3A is a perspective view of a main part of the inner panel, FIG. 3B is a plan view of the main part, and FIG. 3C is a cross-sectional view.
FIGS. 4A to 4C are enlarged perspective views of a main part showing a method of fixing a wire harness.
5A is a plan view of a main part of an inner panel after fixing a wire harness, FIG. 5B is a cross-sectional view, and FIG. 5C is a cross-sectional view.
6A is a perspective view of a main part of an inner panel according to a second embodiment, FIG. 6B is a plan view of a main part, and FIG. 6C is a cross-sectional view.
7A is a plan view of a main part of an inner panel after fixing a wire harness, FIG. 7B is a cross-sectional view, and FIG. 7C is a cross-sectional view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Rear door 11 Outer panel 12 Inner panel 12a Main part 12b Rib 13 Adhesive 14 Wire harness fixing part 14a Winding piece 14b Stopping piece G Glass W / H Wire harness

Claims (4)

The inner panel and the outer panel of the automobile are molded with resin, and the space surrounded by the inner panel and the outer panel is a wiring harness wiring space,
At a distance from the inner panel or the outer panel along the wiring path of the wiring space, a wire harness fixing portion composed of a pair of winding pieces and a stopper piece is protruded, and the amount of protrusion of the winding piece Is an elongated flat plate shape having a dimension of not less than half the circumference of the wire harness, and a locking portion is provided at the tip thereof, while the winding piece and the wire harness are projected so as to face each other with a gap equal to or more than the outer diameter of the wire harness. The stop piece is an elongated flat plate with a locked part at its tip,
A wire harness is passed between the wound piece and the stop piece, and the wound piece is bent to the stop piece side along the outer periphery of the wire harness, and the wound piece is locked to the locked portion of the stop piece. The vehicle body fixing structure for a wire harness, wherein the wire harness is positioned and supported by locking portions. The winding piece has a wide surface in the wire harness wiring direction, while the stop piece has a wide surface in a direction orthogonal to the wire harness wiring direction. 2. The vehicle body fixing structure for a wire harness according to claim 1, wherein the portion comprises an insertion groove cut from the tip and a groove to be inserted, and the insertion groove is inserted and locked in the insertion groove in the orthogonal direction. The vehicle body fixing structure for a wire harness according to claim 1, wherein the locking portion of the winding piece and the locked portion of the stopper piece are formed of claws that lock each other. The vehicle body fixing structure for a wire harness according to claim 1, wherein the inner panel and the outer panel are fixed at their peripheral edges with an adhesive, and the winding piece and the stopper piece are formed integrally with and project from the inner panel.

Images