JP2001151046A - Harness attaching structure of automotive resin molded article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost by easily attaching a harness to an automotive resin molded article in a small space by a simple structure. SOLUTION: A harness attaching part 6 for attaching the harness H to a plate-shaped rib 3 integrally formed on the automotive resin molded article 1 is formed. The harness attaching part 6 is formed of a harness insertion port 7 having the opening length L gradually decreased as separating from the end edge of a rib 3, a harness housing part 8 communicated to the innermost part of the harness insertion port 7, a pair of flexile harness holding parts 9 projecting toward the harness housing part side and having one side wall for constituting the wall part of the harness insertion port 7 and the other wall for constituting one wall part of the harness housing part, and a wall reduction part recessed outward from the harness housing part at an intersecting part of the other wall of the harness holding part and the peripheral wall of the harness housing part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness mounting structure for a resin molded article for automobiles such as an instrument panel, a door trim, a bumper, etc., and more particularly, to easily attach a harness to a plate-like rib formed on the resin molded article. It is like that.

[0002]

2. Description of the Related Art Conventionally, harnesses such as wire harnesses and flat harnesses have been attached to resin molded products such as instrument panels, door trims and bumpers of automobiles.

[0003] As a harness mounting structure for such a resin molded product, a groove-shaped fixing portion for mounting a harness on an instrument panel, as disclosed in Japanese Patent Application Laid-Open No. 8-188068, is integrated with the panel. Or as disclosed in Japanese Patent Application Laid-Open No. 9-19035,
A guide lane for accommodating a harness is provided on a harness mounting surface of a vehicle body panel, and a retaining protrusion having a narrower harness insertion opening is formed from a side end of the harness insertion opening, so that the harness is accommodated and held in the guide lane. Etc. have been proposed.

[0004]

However, in the case of the former, it is necessary to fix the harness with a foamed resin separately in order to prevent the harness from dropping off from the fixing portion, and it takes a lot of man-hours to attach the harness. In addition, the cost increases. In the latter case, it is necessary to separately form a guide lane for attaching a harness to the vehicle body panel,
There is a problem that the molding die of the vehicle body panel becomes complicated and the production cost increases.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to easily attach a harness to a resin molded product for an automobile with a small space and a simple structure. To enable cost reduction.

[0006]

In order to solve the above-mentioned problems, a first solution of the present invention is to form a plate-shaped rib integrally on a resin molded article for automobiles and to form the plate-shaped rib. A harness attachment portion is formed at the edge. The harness mounting portion communicates with a harness insertion port formed at the edge of the plate-shaped rib so that the opening length gradually decreases as the distance from the edge increases, and a back portion of the harness insertion port. The harness receiving portion opened larger than the opening length of the back portion, one side wall constitutes the wall portion of the harness insertion port, and the other side wall constitutes one wall portion of the harness receiving portion, and is located on the side of the harness receiving portion. A pair of flexible harness holding portions projecting and flush with both side surfaces of the plate-like rib, and a crossing portion between the other side wall of the harness holding portion and the peripheral wall portion of the harness receiving portion; The harness insertion port, the harness storage portion and the slim portion are formed by penetrating both side surfaces of the plate-shaped rib, respectively, and the harness is formed in the plate shape. Through the rib Characterized in that it has to be attached to Ness accommodating portion.

[0007] A second solution taken by the present invention is:
The plate-shaped rib in the first solving means is a vertical rib for reinforcing a bumper face which is provided upright on the back surface of the bumper face.

[0008]

According to the first aspect of the present invention, since a slim portion is formed at the intersection of the other side wall of the harness holding portion and the peripheral wall of the harness receiving portion, the length of the harness holding portion can be effectively reduced. Since the opening can be made long so that the opening area of the harness accommodating portion becomes small, the size of the plate-like rib can be reduced, or the strength of the plate-like rib can be reduced.

Further, since the plate-like rib has a simple shape merely standing upright on the resin molded product, the production cost does not increase.

[0010] Further, since the harness can be inserted into the insertion slot with a single touch and accommodated in the harness accommodating section, not only is the work of attaching the harness extremely simple, but also the harness accommodated in the harness accommodating section is held by the harness holding section. Since it is prevented from dropping out or coming out of the harness accommodating portion, it is possible to further reduce the cost without using a separate member for preventing dropout.

According to the second solution, since the harness mounting portion is formed on the plate-like rib for reinforcing the bumper face formed on the back surface of the bumper face, it is possible to minimize a decrease in the strength of the bumper face. At the same time, it is not necessary to separately form a plate-shaped rib dedicated to attaching the harness, and it is possible to avoid an increase in the manufacturing cost of the bumper face.

[0012]

Embodiment 1 Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings.

FIGS. 1 to 3 show a first embodiment in which the present invention is applied to a bumper face as a resin molded product for an automobile.
It shows.

Four plate-like horizontal ribs 2 extending in the longitudinal direction of the bumper face 1 (the width direction of the vehicle) are integrally formed at intervals in the vertical direction. A plurality of plate-like vertical ribs 3 extending in the vertical direction are integrally formed between these horizontal ribs 2 at intervals in the longitudinal direction of the bumper face 1 for each step. The longitudinal ribs 3 of each of these steps are symmetrically arranged on both left and right sides with respect to the longitudinal center of the bumper face, and between each longitudinal rib 3 and the back surface of the bumper face 1, the longitudinal direction of the bumper face 1 is provided. A hollow portion 4 penetrating through each hole is formed for each step. The reason why the hollow portion 4 is formed is that the vertical rib 3 is formed by the bumper face 1.
This is to prevent the occurrence of sink marks on the surface of the bumper face 1 during the bumper face forming step by bonding to the back surface of the bumper face.

Reference numeral 5 denotes flange portions projecting toward the longitudinal center of the bumper face 1 at both ends of the longitudinal ribs 3 in the longitudinal direction of the vehicle to reinforce the longitudinal ribs 3.

As a feature of the present invention, an edge 3a of the uppermost vertical rib 3 on the vehicle body (not shown) side (a left edge 3a in FIG. 2).
Is formed with a harness mounting portion 6. As shown in an enlarged manner in FIG. 3, the harness mounting portion 6 is formed at an edge 3a of the longitudinal rib 3 so that the opening length L gradually decreases as the distance from the edge 3a increases. 7
A circular harness storage portion 8 which communicates with the back portion of the harness insertion port 7 and is opened longer than the opening length L of the back portion;
One side wall 7a constitutes the wall of the harness insertion port 7, and the other side wall 8a constitutes one wall of the harness accommodation part 8, and the harness accommodation part 8
The other side wall 8a of the harness holding portion 9 is provided at the intersection of the pair of flexible harness holding portions 9 protruding to the side and the other side wall 8a of the harness holding portion 9 and the peripheral wall portion 8b of the harness storage portion 8. The harness receiving portion 8 is continuous and has a concave portion 10 which is depressed outward. The one side wall 7a and the other side wall 8a of the harness holding part 9 are formed substantially parallel, and the wall part 8c of the slim part 10 which is continuous with the peripheral wall part 8b is formed substantially parallel to the other side wall 8a. I have. The harness insertion port 7, the harness storage portion 8, and the slim portion 10 are formed to penetrate both side surfaces 3b, 3c of the vertical rib 3, respectively.

To attach the harness H to the harness housing 6 formed as described above, the harness H is inserted into the harness insertion port 7 so as to penetrate (traverse) the harness insertion port 7, and a pair of harness holding sections is provided. 9 is bent toward the other side wall 8a side of the harness holding portion 9 due to the insertion force, the opening length L at the back of the harness insertion port 7 becomes larger than the outer diameter of the harness H, and the harness H moves the harness insertion port 7 It passes through and moves into the harness storage unit 8. After the harness H is moved into the harness accommodating section 8 in this manner, the pair of harness holding sections 9 are restored by their elasticity, and the harness insertion port 7 is restored.
Of the harness H is smaller than the outer diameter of the harness H.
For this reason, the harness H accommodated in the harness accommodation portion 8
Abuts on the tip of the harness holding portion 9 and does not fall out of the harness storage portion 8.

As described above, according to the present invention, at the intersection between the other side wall 8a of the pair of harness holding portions 9 and the peripheral wall portion 8b of the harness storage portion 8, the slim portion 10 recessed outward of the harness storage portion 8 is provided. Since the harness H is formed, the substantial length l ₀ of the harness holding portion 9 is increased, the bending of the harness holding portion 9 when the harness H is inserted is effectively facilitated, and the opening area of the harness receiving portion 8 is reduced. As a result, a reduction in the strength of the vertical ribs 3 can be suppressed as much as possible.

Modification of First Embodiment The harness receiving portion is formed not only on the bumper face of the automobile in the first embodiment but also on a reinforcing rib formed on an automobile resin molded product such as an instrument panel or a door trim. can do.

The harness mounting portion of the present invention is also applied to a plate-like rib formed integrally with the molded product for mounting a harness, without being limited to the reinforcing rib of the resin molded product for automobiles. be able to. In this case, since the rib can be reduced in size, the degree of freedom of the molding portion is increased, and the molding space is small, which is effective.

The width of the harness holding portion 9, that is, the one side wall 7a and the other side wall 8a are not necessarily parallel to each other. For example, the base end side of the harness holding portion 9 is formed to have a width smaller than the front end side. You may.

Further, the harness H may be not only of a circular cross section but also of a square or flat shape.

[0023]

[Embodiment 2] FIG. 4 shows an embodiment in which the present invention is applied to a vertical rib 3 of a bumper face 1 in the same manner as in Embodiment 1 described above. Is formed in a square shape. By doing so, the length of the wall portion 8c of the slimming portion 10 continuous with the peripheral wall portion 8b is longer than that of the first embodiment, and as a result, the opening area of the harness accommodation portion 8 is further increased. In other words, the space between the harness H and the peripheral wall portion 8b of the harness housing 8 when the harness H is housed becomes smaller, and a reduction in the strength of the vertical ribs 3 can be further suppressed. That is, the harness housing portion can be formed in a smaller space.

The other points are the same as those in the first embodiment, and the description thereof is omitted.

[Brief description of the drawings]

FIG. 1 is a plan view of a bumper face according to Embodiment 1 of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged view of a harness mounting portion in FIG.

FIG. 4 is a diagram corresponding to FIG. 3 in a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bumper face (automobile resin molded article) 3 Vertical rib (plate-shaped rib) 6 Harness attachment part 7 Harness insertion port 7a One side wall 8 Harness accommodation part 8a Other side walls 8b Peripheral wall of harness accommodation part 9 Harness holding part 10 Num part H Harness L Opening length

Claims (2)

[Claims] 1. A plate-shaped rib is integrally erected on a resin molded article for an automobile, and a harness mounting portion is formed at an edge portion of the plate-shaped rib. The harness mounting portion is connected to an end of the plate-shaped rib. A harness insertion opening formed in the edge portion so that the opening length gradually decreases as the distance from the end edge portion increases; and a harness housing communicating with a back portion of the harness insertion port and opening larger than the opening length of the back portion. And one side wall constitutes the wall of the harness insertion port, and the other side wall constitutes one wall of the harness accommodating portion and projects toward the harness accommodating portion. A flexible harness holding portion, and a crossing portion between the other side wall of the harness holding portion and the peripheral wall portion of the harness housing portion, which is continuous with the other side wall of the harness holding portion and is recessed outward of the harness housing portion. The harness insertion port and the harness The housing resin part and the slim part are formed by penetrating both side surfaces of the plate-shaped rib, respectively, and the harness is inserted through the plate-shaped rib to be attached to the harness storage part. Product harness mounting structure. 2. The harness mounting structure according to claim 1, wherein the plate-like rib is a vertical rib for reinforcing a bumper face which is provided upright on a rear surface of the bumper face.