JP3319574B2 - Harness protector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness protector which is easily crushed, for example, at the time of a collision of an automobile and does not strongly press other parts.

[0002]

2. Description of the Related Art FIGS.
1 shows a conventional harness protector described in Japanese Patent Application Laid-Open Publication No. HEI 10-125, 1988. The harness protector 51 includes a protector body 52 made of a synthetic resin having a concave cross section and a protector cover 5 made of a synthetic resin that covers an upper opening of the protector body 52.
And 3.

[0003] The protector main body 52 comprises a bottom wall 54 and vertical side walls 55 on both sides, and an engagement frame portion 56 for locking the cover is formed on the upper portion of the side wall 55. On both short vertical side walls 57 of the protector cover 53, locking claw pieces 58 for the engaging frame portion 56 are formed to hang down.

[0004] Further, at the rising portion of the side wall 55 of the protector body 52, as shown in FIGS. 14 (a) and 14 (b), a thin portion 59 or 60 for preventing falling is formed. The thin portions 59 and 60 are for preventing the side wall 55 from falling down inside during molding or the like.

[0005] As shown in Fig. 15, a wire harness 61 is inserted into a protector main body 52, electronic components (not shown) are set, and then a protector cover 53 is closed.
The wire harness 61 and the protector 51 are assembled in an instrument panel of an automobile, under a floor, or the like. In the protector 51, a required portion of the wire harness 61, electronic components, and the like are protected from interference with the instrument panel wall and from stepping on an occupant.

[0006]

However, in the above-described conventional protector 51, the protector cover 53 and the bottom wall 54 of the protector main body 51 are in the assembled state of the vehicle shown in FIG. When an impact force acts in the direction in which the protector body is pressed, the protector body 52 is box-shaped and is hardly deformed. Therefore, there is a concern that the impact force is transmitted to another component as it is, and the other component is damaged. In particular, when components such as the steering wheel are arranged behind the protector 51, there is a concern that the protector 51 may push the steering wheel or the like toward the occupant during a collision.

[0007] In view of the above, the present invention conveys an impact force to other parts when an impact is received due to a vehicle collision or the like.
An object of the present invention is to provide a harness protector that does not push out other parts.

[0008]

In order to achieve the above-mentioned object, the present invention provides a protector body and a protector cover.
A pair of inclined outwards from both sides of the bottom wall of the protector body and / or both sides of the top wall of the protector cover.
The wall portions are formed facing each other, and the side wall is formed from the pair of inclined wall portions.
It is formed and is easily crushed by a force pressing the bottom wall and the top wall inward . A thin portion may be formed at a boundary between the pair of inclined wall portions and another wall portion of the protector body and / or another wall portion of the protector cover. Crushable portion and said pair having a pair of inclined wall portion
And a rigid portion having no inclined wall portion may be integrally formed.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show a first embodiment of a harness protector according to the present invention.

This harness protector 1 comprises a protector body 2 and a protector cover 3 made of a synthetic resin as shown in FIG. 1, and a front half 4 of the protector 1 is formed in a substantially square cross section. The section 5 is characterized by being formed in a substantially octagonal cross section.

An electronic component 6 is accommodated in the front half 4 (rigid portion) of the protector 1. A wire harness (not shown) is inserted through the front half 4 and the rear half 5 (crushable portion). As shown in FIG. 2, the front half portion 4 includes side walls 8 and 8 which are vertically raised from the bottom wall 7 of the protector body 2 and a flat top wall 9 and a vertical side wall 10 which are perpendicular to the protector cover 3 as in the prior art. To protect the electronic component 6.

The rear half 5 of the protector 1 has a pair of inclined walls 12 and 12 bent obliquely upward from both sides of a bottom wall 11 of the protector body 2 as shown in FIG. Side wall 13 and protector cover 3
, A pair of inclined walls 15, 15 bent obliquely downward from both sides of the top wall 14, and a short side wall 16 formed from each inclined wall 15.

The boundary (bent portion) between the bottom wall 11 and the inclined wall 12,
Boundary between inclined wall 12 and side wall 13, and top wall 14 and inclined wall 1
5, thin portions 17, 18, 19, and 20 are formed at the boundaries between the inclined wall 15 and the side walls 16, respectively. The thin portions 17 to 20 have a substantially semicircular cross section and continue in a groove shape in the longitudinal direction of the protector. The wall portions 12, 13, 15, 16 are easily bent by the thin portions 17 to 20.

Incidentally, even if the thin portions 17 to 20 are not provided, the bottom wall 11 and the side wall 13 are connected via the inclined portion 12, and the top wall 14 and the side wall 16 are connected via the inclined portion 15. This makes it easier to crush (crushable).

When an impact force in the pressing direction acts on the top wall 14 and the bottom wall 11 as shown by an arrow A due to a vehicle collision or the like as shown in FIG. 4, for example, the inclined wall 12 on the protector body 2 side
Is tilted horizontally, the side wall 13 is inclined and opens outward, the inclined wall 15 on the protector cover 3 side is bent horizontally, and the side wall 16 is inclined and opens outward, so that the rear half 5 of the protector 1 is opened. Collapses and absorbs impact forces. The rear half 5 does not need to be completely crushed flat, but only needs to crush the space except for the wire harness (not shown).

With this crushable structure, components (not shown) adjacent to the rear half 2 of the protector 1 are not affected by the collision. Even if the component is pushed by the latter half 5 of the protector 1, the latter is crushed, so that the component is not pushed out strongly.

The electronic components 6 and the like that are not likely to be broken by a collision are protected by the rigid structure of the front half 4 of the protector 1. Of course, in a protector not provided with the electronic component 6 and the like, the above-described crushable structure can be adopted as a whole.

In the above embodiment, the front half 4 and the rear half 5 of the protector 1 can be connected via the slit 49. The slit 49 is, for example, the top wall 14 and the bottom wall 1
Walls 12, 13, 15, 16 of protector 1 excluding 1
Are formed continuously in the circumferential direction. Since the rear half 5 is separated from the front half 4 by the slit 49, the rear half 5 is reliably crushed and deformed without being affected by the rigid front half 4.

FIGS. 5 to 10 show a second embodiment of the harness protector. FIG. 5 is a plan view as viewed from the protector cover side. The front half 22 (rigid portion) of the harness protector 21 includes a side wall 42 perpendicular to a bottom wall 41 of the protector body 24 and a top wall of the protector cover 25 as shown in FIG. The rear half 23 (crushable portion) of the protector 21 has a sloped wall 28 in which only the protector cover 25 continues to the top wall 27 as shown in FIG. The protector body 24 has
It has a structure that is continuous from the bottom wall 30 to a vertical side wall 32 via a thin portion 31 curved in a round shape.

The inclined wall 28 of the protector cover 25 continues to a curved side wall 29 having a thin portion 33. The side wall 29 can be bent from the thin portion 33. As shown in FIG. 8, a locking claw piece 34 is formed on a part of the side wall 29 so as to hang down.
The locking claw 34 can be bent from the thin portion 33.
The claw portion 35 of the locking claw piece 34 is inserted and engaged with an engagement frame portion 36 formed on the side wall 32 of the protector body 24.

The section F in FIG. 5 corresponds to the top wall 2 as shown in FIG.
7 to a side wall 38 via a short ramp 37. The outer part of the inclined wall 37 is curved, so that the top wall 2
A thin portion 39 is formed at the boundary between the inclined wall 7 and the inclined wall 37 and between the inclined wall 37 and the side wall 38.

When a vertical impact is applied from the state shown in FIG. 7, the inclined wall 28 of the protector cover 25 as shown in FIG.
Is opened outward from the bent portion 40 and the protector body 2
The fourth side wall 32 falls outward from the thin portion 31. Here, even if the locking claw piece 34 (FIG. 8) does not come off the engagement frame 36,
Since the locking claw 34 is largely bent from the thin portion 33, the rear half 23 of the protector 21 is reliably crushed and deformed. As a result, the same operation and effect as the previous example can be obtained.

A thin portion (not shown) similar to the previous example may be formed at the boundary (bent portion) between the top wall 27 and the inclined wall 28 of the protector cover 25. Also, the protector cover 25
And the rear half 23 of the protector body 24 may be formed to be thin as a whole to make it easier to collapse.

As shown in FIG. 11, an inclined wall 47 is formed on the bottom wall 46 of the protector body 45 so as to face obliquely upward.
The protector may have a substantially hexagonal cross section. Inclined wall 47
Is followed by short vertical side walls 48. 8 on the side wall 48
Is formed. The protector cover 25 is the same as the example of FIG. At the time of a collision, as shown in FIG. 12, the inclined wall 47 of the protector main body 45 falls down and deforms almost horizontally, so that the protector main body 45 is significantly crushed and deformed. In the structure of FIG. 11, each of the wall portions 46, 47, 4
A thin portion (not shown) may be formed at the bent portion of FIG.

[0025]

As described above, according to the first aspect of the present invention, at the time of collision of the vehicle, the protector body and / or the protector cover are crushed from the inclined wall, so that the impact force is not transmitted to other parts, and the other parts are not affected. Is prevented from being damaged. Further, according to the second aspect of the present invention, the protector body and / or the protector cover are more easily crushed by the thin portion, and the above operation and effect are promoted. According to the third aspect of the invention, important parts such as electronic parts are protected by the rigid portion of the protector, and safety at the time of a vehicle collision and the like are secured.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a harness protector according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1, showing a rigid portion of the protector.

FIG. 3 is a sectional view taken along line BB of FIG. 1 showing a crushable portion of the protector.

FIG. 4 is a sectional view showing a state where a crushable portion is crushed.

FIG. 5 is a plan view showing a second embodiment of the harness protector.

FIG. 6 is a sectional view taken along the line CC of FIG. 5, showing a rigid portion of the protector.

FIG. 7 is a sectional view taken along line DD of FIG. 5, showing a crushable portion of the protector.

FIG. 8 is a sectional view taken along the line E- in FIG. 5 showing locking means of the protector cover;
It is E sectional drawing.

FIG. 9 is a view showing a part of the protector cover, taken along line FF of FIG. 5;
It is sectional drawing.

FIG. 10 is a sectional view showing a state where a crushable portion is crushed.

FIG. 11 is a cross-sectional view showing a similar example corresponding to FIG. 7 of the second embodiment.

FIG. 12 is a sectional view showing a crushed state of a similar example.

FIG. 13 is an exploded perspective view showing a conventional harness protector.

FIGS. 14A and 14B are cross-sectional views showing a thin portion of the protector body.

FIG. 15 is a sectional view showing an assembled state of the protector of FIG. 13;

[Explanation of symbols]

 1,21 Harness protector 2,24 Protector body 3,25 Protector cover 4,22 Rigid part 5,23 Crushable part 12,15,28,47 Inclined wall part 17-20 Thin part

Claims (3)

(57) [Claims] (1) The protector body and the protector cover
A pair of inclined outwards from both sides of the bottom wall of the protector body and / or both sides of the top wall of the protector cover.
The wall portions are formed facing each other, and the side wall is formed from the pair of inclined wall portions.
A harness protector which is formed and is easily crushed by a force for inwardly pressing the bottom wall and the top wall . 2. A method according to claim 1, wherein a thin portion is formed at the boundary with the other wall portion of the protector body and the pair of inclined walls and / or other wall portion of the protector cover Harness protector. 3. A process according to claim 1 or 2 wherein the harness and the pair of inclined wall portion crushable portion and a rigid portion having no the pair of inclined wall portion having is characterized in that it is integrally formed Protector.