JPH0840160A - Automotive interior parts - Google Patents

Abstract

PURPOSE:To surely protect an occupant by providing a step-shaped impact absorbing member having a part to be broken in an almost orthogonal manner to the direction of the impact on the inner side of an interior parts body to absorb the impact in the collision. CONSTITUTION:A pillar garnish body 1 is mounted on the inner side of a center Pillar or the like as an automotive interior parts. An impact absorbing member 2 is integratedly arranged on the reverse side of this pillar garnish body 1. The impact absorbing member 2 is arranged orthogonal to the longitudinal direction of a flat plate part 1a to form the step-shaped part consisting of a main part 2a, a part 2b to be broken, and a rib part 2c. When the head or the like of an occupant is hit by the flat plate part 1a of a pillar garnish body 1 in the collision, etc., the impact absorbing member 2 is deflected to absorb the impact, and the part 2b to be broken is broken to absorb the impact and surely protect the occupant. Because the part 2b to be broken is on the inner side separated from the reverse side of the pillar garnish body 1 by the distance equal to the main part 2a, the broken surface does not hurt the occupant after being broken.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile interior part having a shock absorbing structure.

[0002]

2. Description of the Related Art Conventionally, as automotive interior parts of this type, for example, Japanese Patent Laid-Open No. 64-9048 and Japanese Utility Model Laid-Open No. 4-424.
The one described in Japanese Patent No. 52 is publicly known.

The "occupant protection device" disclosed in Japanese Patent Laid-Open No. 64-9048 has a bulging portion formed by expanding an elastic body constituting a column cover in the floor direction at the lower portion of a steering column and at the same time A cushioning member, which is pressed and plastically deformed when the knees of the occupant collide, is arranged inside the projecting portion, and the cushioning member is composed of a plurality of ribs arranged in a straight line.

In Japanese Utility Model Laid-Open No. 4-42452, "Vehicle interior parts", the intermediate portion is provided so as to bulge toward the front side with respect to the peripheral portion, and when the intermediate portion collides, at least one of the intermediate portion is provided. The member is configured to protect the occupant by sinking the portion and absorbing the impact.

[0005]

However, in the "occupant protection device" of the former publication, since the ribs that absorb impact are arranged in a straight line, the reaction force can be adjusted only by the number of ribs and the thickness of the ribs. There is a problem that the structure cannot be adjusted and the structure becomes complicated and the size becomes large when trying to increase the shock absorbing capacity.

Further, since the ribs are arranged substantially parallel to the impact input direction, the ribs may not be crushed by the impact, so that it takes a lot of man-hours to tune the impact absorbing power. There is also.

On the other hand, in the latter publication "Vehicle interior parts",
Since the fracture surface due to impact is set on the surface of the product,
The appearance of the product is not good and after breakage due to impact,
Since the fracture surface may damage the occupant, there is a problem that the fracture surface needs to be tuned.

The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to absorb an impact when a vehicle collides and to protect an occupant from the impact with a simple structure. It is intended to be provided.

[0009]

In order to achieve the above object, the present invention provides a step-like shock absorbing member having a fractured portion substantially orthogonal to the impact direction inside the interior part body. is there.

Further, the shock absorbing member is provided with ribs or through holes for adjusting the shock absorbing power.

[0011]

With the above structure, when the occupant collides strongly with the interior parts, the rupture portion breaks to absorb the impact, so that the occupant can be reliably protected from the impact.

Further, the impact absorbing power can be easily adjusted by providing a rib or a through hole at the breaking portion.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which the present invention is applied to a pillar garnish will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a pillar garnish, and FIG.
1 is a cross-sectional view taken along the line AA of FIG. 1, in which 1 denotes a pillar garnish main body as an internal component main body mounted inside, for example, a center pillar of an automobile (not shown).

The pillar garnish body 1 is formed of a synthetic resin having elasticity so as to cover the inside of the center pillar, and has a rectangular flat plate portion 1a and side plates connected to both sides of the flat plate portion 1a. It consists of part 1b.

On the back surface of the pillar garnish body 1, shock absorbing members 2 are integrally provided at one or a plurality of locations.

The impact absorbing member 2 is arranged in a direction orthogonal to the longitudinal direction of the flat plate portion 1a, and as shown in FIG. 2, the main portion 2 is provided so as to project substantially vertically from the back surface of the flat plate portion 1a.
a and the fractured portion 2 bent substantially perpendicular to the main portion 2a
b and the fractured portion 2b, the rib portion 2c is bent substantially at a right angle to the opposite side of the main portion 2a.
When molding, as shown by the phantom line in FIG. 2, by sliding a part 3 of the mold along the flat plate portion 1a, the broken portion 2
b is molded.

Next, the operation of the pillar garnish main body 1 constructed as described above will be explained. The pillar garnish main body 1 is used by being installed inside a center pillar or the like as an interior part of an automobile. When an occupant's head or the like strongly collides with the flat plate portion 1a of the pillar garnish main body 1 due to an accident or the like, a shock is applied to the shock absorbing member 2 provided in the pillar garnish main body 1 and the shock absorbing member 2 is deformed, When this impact is absorbed and the impact exceeds the limit of the impact absorbing power set in the fractured portion 2b, the fractured portion 2b is fractured as shown in FIG. 3 to absorb the excessive impact, and the occupant is surely protected from the impact. Since the fractured portion 2b is on the inside separated from the back surface of the pillar garnish body 1 by the amount of the main portion 2a, the fractured surface after fracture may damage the occupant. There is no.

The shock absorbing capacity of the shock absorbing member 2 can be arbitrarily set by changing the thickness of the breaking portion 2b as in the above-mentioned embodiment, and can also be arbitrarily set by the following other embodiments. You can

That is, in FIGS. 4 and 5, one or a plurality of ribs 2d are provided on the inside of the fractured portion 2b, and the impact is also absorbed by the ribs 2d. The absorption capacity can be set arbitrarily.

Further, as shown in FIG. 6, the main part 2a of the shock absorbing member 2 is obliquely angled with respect to the flat plate part 1a of the pillar garnish body 1 to adjust the shock absorbing power, As shown in FIGS. 7 and 8, the broken portion 2b
The shock absorbing power may be adjusted by providing one or a plurality of through holes 2e in the.

Further, in the above-mentioned embodiment, the case where it is applied to the pillar garnish has been described, but it is of course applicable to other interior parts.

[0023]

As described in detail above, according to the present invention, since the step-like impact absorbing member having the fractured portion substantially orthogonal to the impact direction is provided inside the interior component body, the impact absorbing member may be damaged by an automobile collision or the like. Even if the occupant's head or the like collides strongly with the interior parts, the rupture portion of the impact absorbing member ruptures and absorbs the impact, so that the occupant can be reliably protected from the impact, and the rupture fractured due to the impact. Since the portion is not exposed on the surface of the interior component, there is no fear that the fracture surface will damage the occupant.

Further, since the shock absorbing force can be arbitrarily set by setting the thickness and quantity of the breaking portion and providing the rib and the through hole at the breaking portion, the conventional shock absorbing force can be added by adding a rigid body such as a pad or an iron plate. The adjustment work can be performed easily and accurately as compared with the case of adding, and the shock absorbing member is provided inside the interior component, so that the production is easy and inexpensive to provide.

[Brief description of drawings]

FIG. 1 is a perspective view of an automobile interior part according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an operation explanatory view of an automobile interior part according to an embodiment of the present invention.

FIG. 4 is a perspective view of an automobile interior part according to another embodiment of the present invention.

5 is a cross-sectional view taken along the line BB of FIG.

FIG. 6 is a sectional view of an automobile interior part according to another embodiment of the present invention.

FIG. 7 is a perspective view of an automobile interior part according to another embodiment of the present invention.

8 is a cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

 1 Pillar garnish main body 1a Flat plate portion 2 Impact absorbing member 2b Broken portion 2d Rib 2e Through hole

Claims (3)

[Claims] 1. An automobile interior part, characterized in that a step-like impact absorbing member having a fractured portion substantially orthogonal to the impact direction is provided inside the interior part body. 2. The automobile interior part according to claim 1, wherein at least one rib for adjusting impact absorbing power is provided in the vicinity of the breaking portion. 3. The automobile interior part according to claim 1, wherein at least one through hole for adjusting the impact absorbing power is provided in the breaking portion.