JP4105519B2 - 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 fix a wire harness with an adhesive 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 power to a high-mount stop lamp, a wiper, a rear heating wire, a key switch, etc. is provided on 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 clamped and clamped to the panel.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-336721
[Problems to be solved by the invention]
However, the work of arranging the wire harness on 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 routing 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, as a first invention, an inner panel and an outer panel of an automobile are resin-molded, and one or both of the inner panel and the outer panel are made of fiber reinforced resin, and the inner panel and the outer panel the space surrounded by the wiring space of the wire harness, and fixed with adhesive the inner panel and the outer panel to each other and the wire harness to the inner panel,
The inner panel has an inner wall and both side walls, and ribs that connect the both side walls to the inner wall protrude from the wiring harness in the wiring direction and are offset at positions sandwiching the ribs. Two plate-shaped or rod-shaped guide portions for temporary fixing provided in a misaligned position are projected, and the interval between these two guide portions is an interval for sandwiching the wire harness,
The wire harness is supported on the rib and routed in a state of being floated from the inner panel, and the outer side surfaces of the wire harness are held in contact with the guide portion, and the wire harness is attached to the rib with an adhesive. Provided is a vehicle body fixing structure of a wire harness characterized by being fixed.
As a second invention, an inner panel and an outer panel of an automobile are resin-molded, and one or both of the inner panel and the outer panel are made of fiber reinforced resin, and a space surrounded by the inner panel and the outer panel is a wire harness. And the inner panel and the outer panel and the wire harness are fixed to the inner panel with an adhesive,
The inner panel has an inner wall and both side walls, and ribs that connect the both side walls from the inner wall protrude in the wiring harness routing direction, and at a position sandwiched between the ribs, Three plate-shaped or bar-shaped temporary fixing guide portions arranged in a staggered manner from both side walls project,
The wire harness is supported on the rib and routed in a state of floating from the inner panel, and the both sides of the wire harness pass through a triangular guide space formed between the three guide portions. There is provided a vehicle body fixing structure for a wire harness, characterized in that the guide portion is brought into contact with and sandwiched, and the wire harness is fixed to the rib with an adhesive .
[0009]
In the first and second inventions, since the vehicle body panel is resin-molded, the wire harness temporary fixing guide portion can be easily provided integrally with the panel. And since the inner panel and the outer panel are resin-molded, the weight of the vehicle body can be reduced.
And, only bonding the wire harness to the inner panel above adhesive can be routed to the wire harness to the vehicle body panel, the panel in a state where a module assembled wire harness can deliver to the line of the car manufacturer The wiring and fixing work of the wire harness to the vehicle body is unnecessary, and the work process can be greatly reduced. Further, even when the wire harness assembly, can abolish the step of attaching the clamp to the conventionally required to have a wire harness, the reduction of significant reduction and working steps of the parts can also be reduced.
[0010]
Furthermore, prior to bonding the wire harness to the inner panel by the adhesive, since the wire harness at the time of operation of wiring harness can continue to wired while temporarily fixed to the guide, the wire harness fabric The workability of line work is improved.
Furthermore, since the routed wire harness to the inner panel, between steps up bonding the wire harness on the panel with an adhesive, be moved to or move the panel, the wire harness from a predetermined position It can prevent coming off.
In addition, since the wire harness is temporarily fixed by the guide and is not displaced, positioning of the wire harness is facilitated during the operation of applying and fixing the adhesive, and the workability of the bonding operation is also improved.
[0011]
In the first invention, the guide portion is composed of two plate-shaped or rod-shaped guide portions that are provided in an offset shape along the wiring path of the wire harness. At the position where it has shifted, it is brought into contact with both outer surfaces of the wire harness and temporarily clamped.
With the above configuration, the wire harness can be easily routed by the two offset guide pieces or guide rods offset, and the dimensions of the wire harness can be easily adjusted as compared with the case where the wire harness is straightly routed. .
Further, when the guide pieces are provided so as to face each other, it is necessary to make the interval between the guide pieces correspond to the outer diameter of the wire harness, and there is a problem that the wire harness cannot be easily passed between the guide pieces. Therefore, it is preferable to shift the position as described above.
[0012]
In the second invention, the guide portion is composed of three plate-like or rod-like guide portions arranged in a staggered manner along the wiring path of the wire harness, and is formed between the three guide portions. The wire harness passing through the triangular guide space is temporarily clamped by being brought into contact with both outer surfaces at a position displaced in the length direction.
[0013]
Also in the case of the above configuration, by inserting the wire harness between the three guide pieces arranged in a staggered manner, the wire harness can be easily arranged in a meandering manner, and displacement of the wire harness in the arrangement direction is prevented. be able to.
[0014]
The inner panel for projecting the guide has a bowl shape, and as described above, ribs for connecting the both side walls from the inner wall are projected at intervals, and the wire harness is supported on these ribs to support the inner panel. The cable is wired in a more floating state, and the wire harness is fixed to the rib with an adhesive .
The two guides of the first invention are provided on both sides of the ribs and at positions where the fitting grooves are sandwiched, and the three guides of the second invention are provided between the adjacent ribs. Incidentally, recessed fitting grooves from the tip of the rib may be fitted wire harness fitting groove.
The two guides are provided on both sides of the rib and at a position sandwiching the fitting groove. The three guides are provided between adjacent ribs.
[0015]
With the above configuration, the rib that reinforces the inner panel can be used as a wire harness support frame, and the wire harness is routed in a state of floating from the panel without contacting the panel. It is also possible to prevent noise from coming into contact. Therefore, it is not necessary to externally attach a soundproof / protective elastic body to the wire harness, and the number of parts can be reduced and the workability can be improved. It becomes easy.
In addition, since the guide protrudes from the inner panel, the guide can also be used for reinforcing the panel.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment.
FIG. 1 shows a rear door 10 of a hatchback type automobile.
The door 10 is formed by bonding the glass G to the opening of the outer panel 11 made of a resin molded product and bonding the inner panel 12 made of a fiber reinforced resin molded product to the inner surface side of the outer panel 11.
[0017]
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.
[0018]
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 flange-shaped main body 12a is provided with reinforcing ribs 12b that stand from the bottom wall 12a-1 and connect the side walls 12a-1. 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.
[0019]
On one side of the rib 12b, a bottom plate 12a-1 and a plate-shaped guide portion 12c continuous to one side of the rib 12b are projected, while on the other side of the rib 12b, the bottom surface 12a-1 and the rib 12b are projected. A plate-like guide portion 12d continuous to the other side surface is projected, the two guide portions 12c and 12d are arranged offset in the wire harness routing direction, and the wire harness W / between the guide portions 12c and 12d is arranged. A guide space S that is an insertion point of H is used.
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 guide pieces 12c and 12d is 5 mm to 20 mm.
Set to correspond to the outer diameter of the wire harness through which the gap L4 between the guide portions 12c and 12d is inserted, in order to allow the wire harness to pass through slightly and pass the wire harness smoothly, L4 ≦ (wire harness diameter) The relationship is set.
The guide portions 12c and 12d are not necessarily continuous with the rib 12b, but are preferably continuous from the viewpoint of increasing the strength of the guide portion itself and the rib 12b.
[0020]
As shown in FIGS. 4A, 4B, and 4C, the wire harness W / H is inserted into the guide space S between the guide portion 12c and the guide portion 12d with respect to the inner panel 12, and is slightly meandered. The cable is placed on the rib 12b and floated from the inner panel 12.
At this time, it is preferable to wind a mark tape around the wire harness W / H around the rib 12b or / and the portions positioned on the guide portions 12c and 12d.
[0021]
In this state, one surface of the outer surface of the wire harness W / H is in contact with the guide portion 12c and the other surface is in contact with 12d, and is temporarily held in an offset state. Therefore, it is possible to prevent the wire harness W / H from deviating in the direction perpendicular to the wire harness routing direction, and to prevent deviation from the routing direction. Moreover, since the guide part 12c and the guide part 12d are arrange | positioned at offset form, the wire harness W / H can meander and the surplus length of a wire harness can be absorbed, and the dimensional accuracy of a wire harness does not become severe.
[0022]
Next, as shown in FIGS. 5A, 5B, and 5C, an adhesive 13 made of a thermosetting resin whose curing is accelerated by heating is applied between the wire harness W / H and the rib 12b. It is temporarily bonded.
The adhesive 13 is applied to the rib 12b in an intersecting manner, with one end 13a of the adhesive 13 applied to one side of the rib 12b and the other end 13b applied to the other side of the rib 12b. The rib 12b is sandwiched to increase the adhesive strength.
[0023]
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.
[0024]
As described above, the wire harness W / H is sandwiched between the guide portions 12c and 12d, temporarily bonded to the rib 12b with the adhesive 13, and attached to the inner panel 12, and is attached to the flange portion 12a-3 of the inner panel 12. After the same type of adhesive 13 is applied, 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 adhered to the outer panel 11 with the same kind of adhesive 13 interposed.
[0025]
As described above, after the wire harness W / H is routed inside and the inner panel 12 and the outer panel 11 are bonded together, the entire rear door 10 is heated so that the ambient temperature becomes about 70 to 140 ° C. The adhesive 13 is heat-cured by the treatment, and a plurality of temporarily bonded portions are fixed together.
In the present embodiment, since the thermosetting is performed at an ambient temperature of 80 ° C. using a urethane-based adhesive, it is possible to use a general-purpose wire harness without using a heat-resistant wire harness W / H. Yes.
[0026]
With the above configuration, the wire harness W / H can be fixed simply by bonding the wire harness W / H to the rib 12b of the inner panel 12 with the adhesive 13, so that a panel in which the wire harness is pre-wired can be obtained 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.
[0027]
Further, the inner panel 12 may be moved during the process from arranging the wire harness W / H to the inner panel 12 to bonding the wire harness W / H to the rib 12b with the adhesive 13. The wire harness W / H is prevented from being detached.
Further, when the adhesive 13 is applied, the wire harness W / H is not displaced, so that the adhesive application workability is improved, and the wire is also applied in the stage after the adhesive 13 is applied and before the adhesive is cured. By preventing the deviation of the harness W / H, the wire harness W / H can be securely fixed at the proper position.
In addition, although a clamp or the like is not used in the present invention, it also serves to position the wire harness W / H with respect to the inner panel 12 by the guide pieces 12c and 12d.
[0028]
Further, since the wire harness W / H is routed over the upper end of the rib 12b protruding from the bottom surface 12a-1 of the inner panel 12 and floats from the main body 12a of the inner panel 12, the vibration of the vehicle is affected by the wire harness. It is difficult to be transmitted to W / H, and even if it is transmitted, it does not hit the main body portion 12a, and the generation of abnormal noise can be prevented.
[0029]
In addition, as an application of the inner panel 12 having the above structure, it is also suitable for use as a side door, a bonnet, a roof, a trunk lid, and the like in addition to the use as the rear door.
Moreover, in this invention , although the fixing structure of the wire harness W / H is provided in the inner panel 12 side, you may provide in 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.
[0030]
6 and 7 show a second embodiment.
As shown in FIGS. 6A, 6B, and 6C, the inner panel 22 of the present embodiment is for reinforcement on the inner surface side of a bowl-shaped main body portion 22a having a bottom surface 22a-1 and a side surface 22a-2. The ribs 22b are projected at intervals, and three plate-like guide portions 22c, 22d, and 22e are projected between the adjacent ribs 22b in a staggered arrangement.
[0031]
The guide portion 22c is continuous with the bottom surface 22a-1 and the one side surface 22a-2 and protrudes perpendicularly to the wire harness routing direction, while the guide portions 22d and 22e are provided with the bottom surface 22a-1 and the other side surface 22a-. It is made to protrude perpendicularly | vertically with respect to the wiring harness routing direction continuously on the other side surface of 2. The guide portions 22c, 22d, and 22e are arranged in a staggered manner with a guide space S so that the inner ends thereof form an isosceles triangle.
When the shortest distance between the guide portion 22d and the guide portion 22e is a and the shortest distance between the guide portion 22c and the guide portions 22d and 22e is b, respectively, the relationship is a> b, and the guide portions 22c and 22d and 22e are The distance c in the vertical direction is equal to or smaller than the outer diameter of the wire harness W / H, that is, W / H can be meandered as c ≦ (harness diameter).
Further, the guide portions 22c, 22d, and 22e are provided with rounded portions 22c-1, 22d-1, and 22e-1 at the corners at the upper end on the inner side to facilitate the insertion of the wire harness W / H from above.
[0032]
As shown in FIGS. 7A and 7B, the wire harness W / H is inserted into the guide space S between the three guide portions 22c, 22d and 22e of the inner panel 22, and the wire harness W / H is meandered. Arranged and temporarily fixed in the state of letting.
Next, as in the first embodiment, the wire harness W / H is temporarily bonded to the rib 22b with an adhesive 13 made of a thermosetting resin, and the inner panel 22 is bonded to the outer panel 11 with the same type of adhesive 13. At the same time, the glass G is also attached to the outer panel 11 with the same kind of adhesive 13 interposed therebetween, and then subjected to heat treatment, whereby the adhesive 13 is thermally cured, and a plurality of temporary bonding locations are fixed together. Yes.
[0033]
With the above configuration, since the guide portions 22c, 22d, and 22e that are integrally continuous with both the bottom surface 22a-1 and the side surface 22a-2 of the main body portion 22a are provided between the adjacent ribs 22b, the inner panel It can also serve as 22 reinforcements.
Further, as shown in FIG. 7B, by pushing the wire harness W / H downward into the guide space S between the guide portions 22c, 22d and 22e, the extra length of the wire harness W / H is absorbed, Generation of abnormal noise due to flapping of the wire harness W / H can be prevented.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.
[0034]
FIG. 7 shows a third embodiment.
The difference from the second embodiment is that the guide portions 32c, 32d, and 32e protruding from the main body 32a of the inner panel 32 are formed in a bar shape with a circular cross section.
[0035]
The inner panel 32 of the present embodiment has reinforcing ribs 32b protruding at intervals on the inner surface side of a bowl-shaped main body portion 32a having a bottom surface 32a-1 and a side surface 32a-2, and is adjacent thereto. Between the ribs 32b, three rod-shaped guide portions 32c, 32d, 32e are opened from the bottom surface 32a-1 with a guide space S so as to form an isosceles triangle.
When the shortest distance between the guide portion 32d and the guide portion 32e is a and the shortest distance between the guide portion 32c and the guide portions 32d and 32e is b, a> b is established, and the guide portions 32c and 32d and 32e are The distance c in the vertical direction is equal to or less than the outer diameter of the wire harness W / H. The diameters of the guide portions 32c, 32d, and 32e are 2 mm to 5 mm.
[0036]
As shown in FIGS. 9A and 9B, the wire harness W / H is inserted into the guide space S between the three guide portions 32c, 32d, 32e of the inner panel 32, and the wire harness W / H is meandered. First of all, it is temporarily fixed.
Next, as in the first embodiment, the wire harness W / H is temporarily bonded to the rib 32b with the adhesive 13 made of a thermosetting adhesive, and the inner panel 32 is bonded to the outer panel 11 with the same type of adhesive 13. At the same time, the glass G is also attached to the outer panel 11 with the same kind of adhesive 13 interposed therebetween, and then heat-treated to thermally cure the adhesive 13 so that a plurality of temporary bonding locations are collectively bonded together. Let
The shapes of the guide portions 33c, 33d, and 33e are not limited to a circular cross section, and may be a polygon, a cone, or a polygonal cone.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.
[0037]
【The invention's effect】
As apparent from the above description, according to the present invention, since the wire harness can be routed fixed to the vehicle body panel by simply adhesively bonded in advance routed in the inner panel that is resin molded, simple Can be 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.
[0038]
Moreover, in the operation | work which wires a wire harness in the said routing space, since it can carry out, temporarily fixing to the guide part protrudingly provided from the panel, workability | operativity becomes favorable. Furthermore, even if the panel is moved during the process from arranging the wire harness to the panel and bonding the wire harness to the panel with an adhesive, the wire harness can be made difficult to come off. In addition, since the wire harness is temporarily fixed by the guide and does not shift, workability when applying the adhesive is improved.
Specifically, the wiring harness can be routed while adjusting the dimensions of the two guide portions protruding at the offset position or the three guide portions arranged in a staggered manner in the wiring harness direction. The deviation can be made difficult to occur.
[0039]
Furthermore, by projecting the guide at a position between the ribs, the guide can be used to reinforce the panel surface, and an intermediate portion that is not fixed with an adhesive is temporarily fixed to the guide. Thus, it is possible to prevent the generation of abnormal noise due to fluttering during vehicle vibration.
[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 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 top view of the main part, and FIG. 3C is a cross-sectional view.
4A is a top view of the main part of the inner panel after the wire harness is temporarily fixed, FIG. 4B is a cross-sectional view, and FIG. 4C is a cross-sectional view.
5A is a top view of the main part of the inner panel after bonding the 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 top view of the main part, and FIG. 6C is a cross-sectional view.
7A is a top view of the main part of the inner panel after bonding the wire harness, and FIG. 7B is a cross-sectional view.
8A is a perspective view of a main part of an inner panel according to a third embodiment, FIG. 8B is a top view of the main part, and FIG. 8C is a cross-sectional view.
9A is a top view of the main part of the inner panel after bonding the wire harness, and FIG. 9B is a cross-sectional view.
[Explanation of symbols]
10 Rear Door 11 Outer Panel 12 Inner Panel 12a Main Body 12b Rib 12c, 12d Guide 13 Adhesive G Glass W / H Wire Harness

Claims (2)

An inner panel and an outer panel of an automobile are resin-molded, and one or both of the inner panel and the outer panel are made of fiber reinforced resin, and a space surrounded by the inner panel and the outer panel is a wiring space for the wire harness, are fixed with the adhesive the inner panel and the outer panel to each other and the wire harness to the inner panel,
The inner panel has an inner wall and both side walls, and ribs that connect the both side walls to the inner wall protrude from the wiring harness in the wiring direction and are offset at positions sandwiching the ribs. Two plate-shaped or rod-shaped guide portions for temporary fixing provided in a misaligned position are projected, and the interval between these two guide portions is an interval for sandwiching the wire harness,
The wire harness is supported on the rib and routed in a state of being floated from the inner panel, and both outer surfaces of the wire harness are brought into contact with the guide portion and sandwiched, and the wire harness is bonded to the rib with an adhesive. A vehicle body fixing structure of a wire harness characterized by being fixed. An inner panel and an outer panel of an automobile are resin-molded, and one or both of the inner panel and the outer panel are made of fiber reinforced resin, and a space surrounded by the inner panel and the outer panel is a wiring space for the wire harness, The inner panel and the outer panel and the wire harness are fixed to the inner panel with an adhesive,
The inner panel has an inner wall and both side walls, and ribs that connect the both side walls from the inner wall protrude in the wiring harness routing direction, and at a position sandwiched between the ribs, Three plate-shaped or bar-shaped temporary fixing guide portions arranged in a staggered manner from both side walls project,
The wire harness is supported on the rib and routed in a state of floating from the inner panel, and the both sides of the wire harness pass through a triangular guide space formed between the three guide portions. A vehicle body fixing structure for a wire harness, wherein the guide portion is brought into contact with and sandwiched, and the wire harness is fixed to the rib with an adhesive .

Images