JP3180328B2 - Automotive interior parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior part such as an automobile door trim provided with a pad for absorbing a shock in a side collision of an automobile.

[0002]

2. Description of the Related Art As shown in FIG.
On the passenger compartment side of the inner panel 5 provided inside the door,
A door trim main body 2 of a door trim 1 formed into a desired curved surface shape is attached, and a shock absorbing at the time of a side collision is sandwiched between the door trim main body 2 and the inner panel 5 on the inner panel 5 side of the door trim main body 2. Pad (side collision pad) 10 is attached.

The side collision pad 10 is made of a synthetic resin material having a relatively high hardness, such as urethane, having a specific gravity of about 0.1, or PP.
A bead obtained by foaming the beads 15 times to 45 times is used to absorb the impact of a collision at the time of a side collision of an automobile and to protect an occupant.

A cylindrical boss 6 is provided on the back side (inner panel side) of the door trim main body 2 for positioning the side bump pad 10, and the side bump pad 10 has a position corresponding to the boss 6. Is provided with a mounting hole 11. Attachment of the side collision pad 10 to the door trim 1
The operation is performed in a state where the boss 6 is inserted into the mounting hole 11 of the side collision pad 10 and the side collision pad 10 is positioned with respect to the door trim main body 2. The side bump pad 10 is fixed by a screw 9 screwed into a screw hole 6a provided at the tip of the boss 6, or an adhesive such as a hot melt 12 is applied to the back side of the door trim main body 2. To be fixed.

[0005]

However, when fixing the side collision pad 10 to the door trim main body 2,
When the screw 9 screwed and fixed to the tip of the boss 6 is used, the tip of the screw 9 faces the indoor side. Also,
The above problem can be solved by sticking the side collision pad 10 with the hot melt 12 or the like without using the screw 9, but in this case, the boss 6 may not be easily broken due to its high rigidity.

The present invention has been devised in view of such conventional circumstances, and provides an automobile interior part in which a boss is easily broken at the time of a side collision and an occupant does not receive an impact from the boss. With the goal.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to an automobile interior component in which a shock absorbing pad attached to the back surface of the interior component body is disposed on the inner panel side. A boss having an axial slit is protruded on the inner panel side, and a mounting hole for inserting the boss is formed in the shock absorbing pad, and the boss formed on the interior component body is used for shock absorbing. The shock absorbing pad is attached to the interior component body by inserting the pad into the mounting hole formed in the pad.

According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, an inclined surface having a smaller diameter in a mounting hole formed in the shock absorbing pad in a direction in which the boss is inserted. Is formed.

According to a third aspect of the present invention, in the configuration of the first aspect of the present invention, a partition piece diametrically crossing the mounting hole is provided in the mounting hole formed in the shock absorbing pad. The partition piece is inserted into the slit of the boss.

Here, as the number of slits formed in the boss, an appropriate number of one or a plurality of slits is selected in order to obtain a predetermined breaking strength.

According to the present invention, the shock absorbing pad (side collision pad) is inserted into the interior part main body by inserting a positioning boss provided on the interior part main body into a mounting hole provided on the side collision pad. It is mounted in a state where it is positioned with respect to. In addition, the side collision pad can be fixed to the interior component body by an adhesive such as hot melt applied between the interior component body and the side collision pad as appropriate.

Thus, the impact transmitted from the outer plate of the door to the occupant via the inner panel and the interior component body at the time of a side collision of the vehicle is absorbed by the side projection pads positioned and fixed to the interior component body.

At this time, since the boss has a slit formed in the axial direction, when an impact force at the time of a side collision is input to the boss via an inner panel or a side collision pad, the boss is formed. Advantageously, the boss is easily broken from the portion where the slit is formed, and the boss is not impacted on the occupant side.

According to the second aspect of the present invention, when the boss is inserted into the mounting hole formed in the side collision pad, the tip of the boss is pushed by the inclined surface formed in the mounting hole and the width of the slit is increased. And the contact pressure between the inclined surface of the mounting hole and the boss is increased, so that the side collision pad can be fixed to the interior component.

According to the third aspect of the present invention, when the boss is inserted into the mounting hole formed in the side projection pad, the partition formed in the mounting hole opens the slit formed in the boss to open the boss. Since the tip bends and the contact pressure between the inner surface of the mounting hole and the boss increases, the side collision pad can be fixed to the door trim.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings as an embodiment applied to an automobile door trim.

FIG. 1 is an exploded perspective view of an automobile door trim showing an embodiment of the present invention, and FIG. 2 is an enlarged perspective view showing a boss formed on a door trim main body. The same components as in the conventional example will be described with the same reference numerals.

In FIG. 1, reference numeral 1 denotes an automobile door trim. The automobile door trim 1 includes a door trim main body 2 which is substantially composed of a resin core material 3 molded into a desired curved surface shape and a skin material 4 bonded to and integrated with the surface of the resin core material 3. ing. An inner panel 5 is disposed outside the door trim body 2 on the vehicle side.

A shock absorbing pad (side collision pad) 10 is attached to the door trim main body 2, and the side collision pad 10 is arranged on the inner panel 5 side.

A cylindrical boss 6 is provided on the rear surface of the door trim main body 2 for positioning the side projection pad 10. The boss 6 is formed with an axial slit 7 penetrating inward and outward as shown in an enlarged view in FIG. 2. The slit 7 is formed at a position symmetrical in the diametrical direction of the boss 6 in this embodiment. It is formed in two places.

The side projection pad 10 has a mounting piece 14 projecting therefrom, and a mounting hole 11 is formed at a position of the mounting piece 14 corresponding to the boss 6.

The side collision pad 10 is attached to the door trim main body 2 as follows. That is, the side collision pad 1
No. 0 is positioned with respect to the door trim main body 2 by inserting the boss 6 into the mounting hole 11, and further, a hot melt 12 is provided between the side collision pad 10 and the door trim main body 2.
Is fixed with adhesive. The boss 6 has a hot melt 12
In this case, as shown in FIG. 3, the hot melt 12 penetrates into the slit 7, so that the surface area of the adhesive increases and the mounting of the side collision pad 10 becomes more firm. Become.

Accordingly, the side collision pad 10 absorbs the shock transmitted from the outer plate of the door to the occupant through the inner panel 5 and the door trim main body 2 in the event of a side collision of the vehicle, and applies the shock to the occupant. Protect from.

At this time, since the slit 7 is formed in the boss 6 in the axial direction, when the impact force at the time of a side collision is input to the boss 6 via the inner panel 5 or the side collision pad 10 or the like. In addition, the boss 6 is easily broken from the portion where the slit 7 is formed, so that the impact by the boss 6 on the occupant side is advantageously avoided.

The slit 7 formed by the boss 6 is 2
It can be selected to obtain a predetermined breaking strength, not only at one place, and may be formed at only one place or may be formed at four places as shown in FIG.

The length of the slit 7 is preferably formed over the entire length of the boss 6. In this case, the slit is broken from the root of the boss 6, so that the rear surface of the door trim main body 2 is flat.

The length of the slit 7 is such that the broken boss is shorter than the sufficiently compressed thickness of the shock absorbing pad (the length of the boss without the slit is equal to the length when the shock absorbing pad is compressed). Shorter).

FIG. 5 is a view showing another embodiment of the present invention. This embodiment is different from the above-described embodiment in that a boss 6 is provided in a mounting hole 11 provided in the side collision pad 10.
Is that an inclined surface 8 having a smaller diameter is formed in the insertion direction. Small diameter a, large diameter b, and boss 6 of the mounting hole 11
Has a relationship of a <c <b with the diameter c. With this configuration, when the boss 6 is inserted, the boss tip portion 6b is pushed by the inclined surface 8 so as to bend so that the width of the slit 7 is reduced, and the contact pressure between the inclined surface 8 of the mounting hole 11 and the boss 6 is reduced. Get higher.

For this reason, the operation and operation described in the above-described embodiment will be described.
In addition to the effect, the side collision pad 10 can be fixed to the door trim main body 2 by the contact pressure generated by the bending of the boss 6.

FIG. 6 is a view showing still another embodiment of the present invention. This embodiment is different from the above-described embodiment in that a mounting hole 11 formed in the side bump pad 10 is provided.
Inside, a partition piece 13 for dividing the hole 11 in the diameter direction is formed. As a result, when the boss 6 is inserted into the mounting hole 11, the partition piece formed in the mounting hole 11 opens the slit 7 formed in the boss 6 and the tip 6b of the boss 6 bends. 6 is increased.

For this reason, the operation described in the above embodiment
In addition to the effect, the side collision pad 10 can be fixed to the door trim main body 2 by the contact pressure generated by the bending of the boss 6.

Although the above embodiment has been described with respect to a mode applied to an automobile door trim, the present invention is not limited to this and can be applied to various interior parts such as a rear side and a pillar of an automobile.

[0033]

As described in detail above, according to the present invention, the boss for positioning the side collision pad provided on the interior component body is formed with an axial slit so that the side collision of the automobile can be prevented. It is possible to obtain an automobile interior part in which the boss is easily broken and the boss is not impacted on the occupant side.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of an automobile door trim according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a boss formed on a door trim main body.

FIG. 3 is a cross-sectional view illustrating an example of a fixed state of a side collision pad.

FIG. 4 is an enlarged perspective view showing a boss formed on the door trim main body.

FIG. 5 is a cross-sectional view showing a relationship between a boss of a door trim main body and a side collision pad according to another embodiment of the present invention.

FIG. 6 is a perspective view showing a relationship between a boss of a door trim main body and a side collision pad, showing still another embodiment of the present invention.

FIG. 7 is an exploded perspective view showing a main part of a conventional automobile door trim.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door trim 2 Door trim main body 5 Inner panel 6 Boss 7 Slit 10 Shock absorbing pad (side impact pad) 11 Mounting hole

Claims (3)

(57) [Claims] 1. An interior part for an automobile in which a shock absorbing pad attached to the back surface of the interior part body is disposed on the inner panel side, wherein a boss having an axial slit is projected on the inner panel side of the interior part body. On the other hand, the shock absorbing pad is formed with a mounting hole into which the boss is inserted, and the boss formed on the interior component body is inserted into the mounting hole formed on the shock absorbing pad,
An interior part for an automobile, wherein the shock absorbing pad is attached to the interior part body. 2. The automotive interior part according to claim 1, wherein an inclined surface having a smaller diameter in an insertion direction of the boss is formed in a mounting hole formed in the shock absorbing pad. 3. A mounting device according to claim 2, wherein a partition piece is provided in the mounting hole formed in said shock absorbing pad, said partition piece diametrically crossing said mounting hole, and said partition piece is inserted into a slit of said boss. The automotive interior part according to claim 1, wherein