JP3121951B2 - 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 automobile interior part such as an automobile door trim installed on a door panel and a rear side trim installed on the side of a rear occupant of a two-door car. The present invention relates to an automobile interior part provided with an armrest capable of effectively absorbing the impact energy of a vehicle.

[0002]

2. Description of the Related Art Normally, interior parts such as rear side trims are installed in the interior of a vehicle, such as a door trim for an automobile mounted on a door panel, and a rear-seat occupant in a two-door hard-top vehicle. In addition to the improvement, the occupants are protected against impact from the side.

More specifically, FIGS. 8 and 9 show an example of a door trim provided in a door panel.
The vehicle door trim 2 is usually installed on the interior surface of the vehicle. The vehicle door trim 2 has a shape retention property and rigidity for attachment to the door panel 1, and has a core material 3 formed into a desired curved surface shape, and A surface material 4 having a cushioning property and a decorative property is covered and adhered to the surface side of the material 3.

[0004] Further, a door trim 2 is formed by forming an armrest portion 5 and a waist portion 6 so as to correspond to the waist and shoulders of the occupant so as to protrude toward the passenger compartment.

When a relatively small impact is applied to the vehicle from the side, the cushion load of the skin material 4 absorbs the impact load and the relatively large impact, such as a side impact, against relatively small impact. In addition, a shock absorbing pad 7 or the like is stuck on the back surface of the core material 3, and a relatively large impact load such as a side impact is generated by the elastic action of the shock absorbing pad 7 installed between the door panel 1 and the door trim 2. It is configured to absorb.

[0006]

As described above, the conventional vehicle door trim 2 can absorb a relatively small impact due to the cushioning properties of the skin material 4, but the armrest portion of the door trim 2 where the occupant's waist easily hits. 5
Since the rigidity is set high in consideration of the armrest function and the like, when a large impact from the side such as a side collision is applied, a part of the impact is absorbed by the flexibility of the core material 3. But,
For a large impact, the impact absorbing action of the impact absorbing pad 7 alone is not enough to reduce the impact applied to the occupant, and the impact applied to the occupant in response to such a relatively large impact applied from the side. It was urgently needed to effectively alleviate this.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and when a relatively large impact load is applied from the side such as a side collision, the impact is reduced by dropping the armrest from the interior parts. The purpose of the present invention is to provide interior parts for automobiles that can be used.

[0008]

In order to achieve the above-mentioned object, the present invention is configured such that a skin material is attached to the surface of a core material formed in a required shape and mounted on the indoor side of a vehicle body panel. And an interior part for an automobile having an armrest part swelling toward the interior of the vehicle, wherein the interior part extends over a vertical wall surface connected to a substantially horizontal upper surface part of the armrest part.
An opening is opened in the core material of the product , the armrest core material is attached to the back side of the core material so as to close this opening, and the armrest core material is removed from the interior component core material by an impact of a predetermined value or more. The joint strength of the armrest core is adjusted so that it can be dropped.

Further, another aspect of the present invention is to provide an interior part which is mounted on the indoor side of a vehicle body panel, and a surface material is coated and adhered to a surface of a core material formed into a required shape. In the interior parts for automobiles provided with an armrest lower part swelling to the indoor side, and an armrest upper member mounted on the upper surface of the armrest lower part,
A mounting hole for engaging with a locking claw provided on the back surface of the armrest upper member is set in a long hole shape along the vehicle width direction, and an upper edge of the armrest upper member is provided.
Since the low rigidity part is provided in the interior part at the corresponding position, when an impact of a predetermined value or more is applied to the armrest upper member, the armrest upper member
The locking claw slides inside the mounting hole toward the back, and the arm
The low rigidity part of the interior parts is broken by the pressing force from the upper
It is characterized in that it drops off to the body panel side .

[0010]

As is clear from the above configuration, the armrest where the occupant's waist collides with the armrest where the load is particularly concentrated.
From the substantially horizontal top surface of the mrest to the vertical wall above it
An opening is formed in the core material of the interior part, and this opening is closed.
By installing the armrest core material independent of the interior component core material and adjusting the joint strength of the armrest core material, when the impact from the side is more than a predetermined value, the armrest core material will be When the armrest core material is dropped, the impact load from the side can be largely absorbed by the falling off of the armrest core material, and the impact load applied to the occupant can be effectively absorbed.

Further, also in the armrest upper member mounted on the upper surface of the armrest lower portion formed in the interior part, the mounting hole for accommodating the locking claw on the back surface of the armrest upper member is set to be elongated in the vehicle width direction,
If a low-rigidity portion is set in the interior component at a position corresponding to the upper edge of the armrest upper member, the impact portion may hit the occupant's waist when impact energy of a predetermined value or more is applied from the side such as a side collision. The armrest upper member is pressed toward the vehicle body panel, the locking claw slides in the mounting hole, and the armrest upper member presses the interior parts
When the low-rigidity portion of the interior component is broken, the armrest upper member falls off the interior component, and the impact load can be effectively absorbed.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle interior part according to an embodiment of the present invention.

FIGS. 1 to 4 show a first embodiment in which the present invention is applied to an automobile door trim, and FIGS. 5 to 7 similarly show a second embodiment in which the present invention is applied to an automobile door trim.

First, a first embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 1 and 2, the automobile door trim 10 is formed into a desired curved surface, and is mounted on the interior side of the door panel 20 via a mounting clip (not shown) or the like.

More specifically, an automobile door trim 10
Is generally composed of a core material 11 having shape retention and rigidity for attachment to the door panel 20, and a skin material 12 which is integrally attached to the surface side of the core material 11 and provides cushioning and decorativeness. .

In this embodiment, as a core material 11, a polypropylene resin mixed with a wood powder filler is extruded into a sheet shape by a T-die extruder, heated and softened, and then formed into a desired curved surface shape by cold press molding. Used as the skin material 12, and a backing made of a polyethylene sheet having excellent cushioning properties on the back surface of a PVC sheet, and the skin material 12 is formed by vacuum forming.
Are integrally attached to the surface of the core material 11.

Further, in the door trim 10, portions corresponding to the occupant's waist and shoulders are bulged toward the passenger compartment, and the armrest 13 and the waist 14 are formed in a curved shape.

The present embodiment is characterized in that, when a relatively large impact is applied to the vehicle from the side, such as a side collision, the impact load can be effectively absorbed by the armrest 13 where the occupant's waist can easily touch. The point is to arrange.

That is, as shown in FIG. 2, an opening 15 (an area indicated by a dotted line in FIG. 1) is opened in the armrest portion 13 of the door trim 10, and the opening 15 is formed.
So that another armrest core material 30 is
1 is fixedly attached to the back side.

A joining portion 31 of the armrest core material 30 is fixed to the back surface of the core material 11 of the door trim 10 by ultrasonic welding along the periphery of the opening 15, and the joining portion of the armrest core material 30 is provided. Although the bonding strength of 31 can be set freely, the present embodiment is characterized in that it is set relatively weak.

That is, when a relatively large impact is applied from the side of the vehicle, such as a side collision, the waist of the occupant hits the armrest portion 13.
By setting the joining strength of the joining portion 31 of the armrest to be weak, the armrest core material 30 falls off the door trim 10,
By falling off to the door panel 20 side, the impact load from the side can be effectively absorbed, and the impact load applied to the occupant can be reduced.

For example, as shown in FIG. 3, if the joining strength of the upper joining portion 31a of the joining portions 31 of the armrest core material 30 is set smaller than the joining strength of the lower joining portion 31b, As shown in FIG. 3, when the armrest core material 30 falls off in the direction of the arrow in FIG. 3, the armrest core material 30 falls off around the lower edge as the hinge center.

If the joining strength of the lower edge side joint 31b is set smaller than the joining strength of the upper edge side joint 31a of the armrest core 30, the armrest core 30 as shown in FIG. The armrest core 30 falls off in the direction of the arrow with the upper edge as the hinge center, so that the impact load from the side can be effectively absorbed.

Although not shown, the same small joining strength is set along the periphery of the joining portion 31 of the armrest core material 30, and both the upper edge joining portion 31a and the lower edge joining portion 31b are both set. Peeled, armrest core material 30
May fall off to the door panel 20 side.

As described above, the automobile door trim 10 according to the present invention has a cushioning property of the skin material 12,
A relatively small impact can be effectively absorbed, and the armrest portion 13 against which the occupant's waist collides especially when relatively large impact energy such as a side impact is applied.
In the configuration, the armrest core material 30 is configured to be detachable, so that the impact load from the side can be effectively absorbed by the falling behavior of the armrest core material 30,
There is an effect that the impact applied to the occupant can be effectively reduced.

FIGS. 5 to 7 show an automobile door trim to which a second embodiment of an automobile interior part according to the present invention is applied. In the first embodiment, an automobile door trim 10 with an integrated armrest will be described. However, in this embodiment, a case where another armrest upper member 40 is installed will be described.

That is, the automobile door trim 10 is composed of a core material 11 formed into a required shape and a skin material 12 integrally adhered to the surface side of the core material 11. The armrest lower part 16 is formed so as to bulge toward the vehicle interior, and another armrest upper member 40 is placed on the upper surface of the armrest lower part 16.

Also in this embodiment, when a relatively large impact is applied from the side of the vehicle, such as a side collision, the armrest upper member 40 falls off the door trim 10 to effectively reduce the impact from the side. The feature is that it can be absorbed.

That is, as shown in FIG. 6, the armrest upper member 40 has a structure in which an armrest pad 42 having excellent cushioning properties is laminated on the surface of an armrest core 41 made of a resin molded body. At two places on the back surface, a locking claw 43 for attachment is provided integrally.

On the upper surface of the armrest lower portion 16 of the door trim 10, an armrest upper member 40 is provided.
A mounting hole 17 for accommodating the locking claw 43 is formed. The mounting hole 17 is set in a long hole shape along the vehicle width direction, and is positioned above the armrest lower portion 16 (armrest upper). The notch 18 is formed along the upper edge of the member 40).
The notch portion 18 is set as a low rigidity portion.

Therefore, in the door trim 10 for an automobile according to the present embodiment, a relatively small impact can be effectively absorbed by the cushioning properties of the skin material 12 of the door trim 10 and the armrest pad 42.

Further, as shown in FIG. 7, when the occupant's waist hits against the armrest upper member 40, the armrest upper member 40 is moved to the door panel 20 side against a relatively large side impact such as a side collision. And the locking claw 43 of the armrest upper member 40 moves in the direction of the arrow in the elongated mounting hole 17 to break the door trim 10 along the notch portion 18 provided in the door trim 10. The member 40 breaks the door trim 10 and falls inside the door trim 10, and the shock absorption accompanying the falling off of the armrest upper member 40 at this time effectively absorbs a relatively large impact load such as a side collision from the side. It can absorb and reduce the impact on the occupant's waist.

In the first and second embodiments described above, the armrest core member 30 and the armrest upper member 40 are applied to the door trim 10 for a vehicle. A similar effect can be obtained by applying the present invention to a rear side trim installed on the side of the vehicle.

[0035]

As described above, the interior parts for automobiles according to the present invention can be applied to an armrest part of an interior part corresponding to the waist of an occupant by applying a core material for armrest or an armrest upper member or the like to a predetermined value or more. When a relatively large impact load is applied from the side of the vehicle, such as a side collision, the armrest (armrest core material, armrest) When the upper member falls off from the interior parts, the impact load can be effectively absorbed, and the effect of the side impact on the occupant can be reduced.

Further, according to the first aspect of the present invention, if the joining strength at the joint of the armrest core material is arbitrarily adjusted, the falling-out form of the armrest core material can be set freely, and the door panel strength and the like can be reduced. This has an effect that an effective shock absorbing function can be provided in combination.

Similarly, according to the second aspect of the invention, since the breaking strength of the low rigidity portion such as the notch portion provided in the interior part can be arbitrarily adjusted, effective shock absorbing performance is provided in combination with the strength of the door panel. It has the effect of being able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an automobile door trim to which a first embodiment of an automobile interior part according to the present invention is applied.

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

FIG. 3 is an explanatory view showing a form in which an armrest core material is dropped off in the automobile door trim shown in FIG. 1;

FIG. 4 is an explanatory view showing another embodiment of a form in which the armrest core is dropped off in the automobile door trim shown in FIG. 1;

FIG. 5 is a cross-sectional view showing a configuration of a vehicle door trim to which a second embodiment of the vehicle interior component according to the present invention is applied.

FIG. 6 is an explanatory view showing a state in which the armrest upper member in the automobile door trim shown in FIG. 5 is attached to the automobile door trim.

FIG. 7 is an explanatory view showing a form in which an armrest upper member of the automobile door trim shown in FIG. 5 is dropped.

FIG. 8 is a perspective view showing a conventional automobile door trim.

9 is a sectional view taken along line IX-IX in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Car door trim 11 Core material 12 Skin material 13 Armrest part 14 Waist part 15 Opening 16 Armrest lower part 17 Mounting hole 18 Notch part 20 Door panel 30 Armrest core material 31 Joining part 40 Armrest upper member 43 Locking claw

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hidetoshi Bishi Saito Nissan Motor Co., Ltd. 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture (58) Field surveyed (Int. Cl. ⁷ , DB name) B60J 5/00

Claims (2)

(57) [Claims] 1. A core member (11) mounted on the indoor side of a vehicle body panel (20) and formed into a required shape by covering and adhering a skin material (12) to a surface of the core member (11). An interior part for an automobile having an armrest (13) projecting therefrom, wherein the armrest (13) has a substantially horizontal upper surface.
Over the vertical wall connected to the top, the interior parts (10)
An opening (15) is opened in the core material (11), and this opening (1) is opened.
5) An armrest core material (30) is attached to the back side of the core material (11) so as to cover the core material (11), and the armrest core material (30) is bonded to the interior component (10) by an impact of a predetermined value or more.
An interior part for an automobile, wherein the bonding strength of the armrest core material (30) is adjusted so that the armrest core material (30) can be detached from the (11) . 2. An interior part (10) which is mounted on the indoor side of a vehicle body panel (20) and is covered with a surface material (12) on a surface of a core material (11) formed in a required shape. At the same time, an armrest lower part (16) swelling toward the indoor side is provided on the interior part (10), and an armrest upper member (4) is provided on the upper surface of the armrest lower part (16).
0), the mounting hole (16) for engaging with the locking claw (43) provided on the back surface of the armrest upper member (40) is set to be a long hole along the vehicle width direction. And the interior corresponding to the upper edge of the armrest upper member (40)
By the low-rigidity area on the component (10) (18) is provided, when an impact of more than a predetermined value is applied to the armrest upper frame member (40), the armrest upper member
The locking claw (43) of the bar (40) is inserted into the mounting hole (16).
Slide toward the side, armrest upper member
The low rigidity portion (18) of the interior part (10) is broken by the pressing force from (40) , and the armrest upper member (40) falls off to the vehicle body panel (20) side. Automotive interior parts.