JPH08108818A - Door trim for air bag device - Google Patents

Abstract

PURPOSE: To provide a door trim for air bag device, which can reduce manufacturing manhours and costs. CONSTITUTION: A door trim 10 is provided with two nearly quadrangle-like door sections 11 and 12, which constitute a double door, cover an air bag 5 and open ruptured when the air bag expands. The door trim 10 comprises plastic trim bodies 13, which are arranged almost all over the surfaces, and surface skins 19 and 20, which are arranged in the surface sides of the trim bodies of the door sections 11 and 12 and were arranged as inserts when the trim bodies were molded. The trim bodies 13 are formed with surface side recessed grooves 14 along the external peripheral edge portions of both door sections and back side recessed grooves 17 along the ruptured portions of the external peripheral edge of both door sections, and the surface skins 19 and 20 are arranged to the internal peripheral surfaces of the surface side recessed grooves 14. Hinge sections 22, which take a part of the rotation center when the door sections open, comprise recessed grooves 18 for the hinges arranged in the trim bodies 13 at the portions where the surface skins 19 and 20 are arranged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door trim arranged inside a vehicle door, and more particularly to a door trim mounted on a door equipped with an airbag device and provided with a door portion opened when the airbag is inflated. Regarding door trim.

[0002]

2. Description of the Related Art Conventionally, as a door trim for an air bag device, one described in JP-A-4-365553 is known.

In the door trim described in the above publication, the door portion that covers the airbag is separate from the door trim main body and is assembled and arranged in the opening provided in the door trim main body. The door portion has a surface provided with a skin in order to enhance the design effect.

However, in the conventional door trim, the door trim main body and the door portion are manufactured separately, and the door portion is attached to the door trim main body, so that the manufacturing process and manufacturing cost of the door trim are increased.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a door trim for an air bag device, which can reduce the number of manufacturing steps and the manufacturing cost.

[0006]

A door trim for an airbag apparatus according to the present invention covers an accommodated airbag,
A door trim for an air bag device, which is disposed on the interior side of a vehicle door, comprising two substantially rectangular plate-shaped door portions that are opened by breaking when the air bag is inflated. A synthetic resin trim body to be placed and 2
One of the door portions, which is arranged on the surface side of the trim body, and which is arranged as an insert at the time of molding the trim body. A front side concave groove is formed along a peripheral edge portion, and a back surface side concave groove is formed on a rear surface side along a break portion of an outer peripheral edge of each door portion, and the skin is an inner peripheral surface of the front surface side concave groove. Up to the hinge portion, which serves as a center of rotation when the door portion is opened, is formed by arranging a hinge groove on the back surface side of the trim main body in a portion where the skin is arranged. To do.

[0007]

With the door trim according to the present invention,
When the airbag is inflated, the location of the back side recessed groove provided in the trim body on the outer peripheral edge of each door part is broken, and each door part is
Each of them is opened in a double-opened state with the hinge portion thinned in the trim body in which the hinge groove is arranged as the center of rotation.

[0008] When the door is opened, in the hinge part, the outer skin is arranged so as to be embedded beyond the hinge groove of the trim body, which serves as the hinge part, so that the outer skin exerts a reinforcing effect and breaks. Without having to open the door. On the other hand, in the parts other than the hinge part, the outer skin arranges the outer peripheral edge of the outer skin along the outer peripheral edge on the front surface side of the door portion, so that the trim body of the outer peripheral edge of the door portion is broken by the reinforcing effect of the outer skin. It will be smoothly fractured without causing.

Therefore, the door trim for an airbag apparatus according to the present invention can be manufactured by simply arranging and molding the outer skin as an insert when molding the trim body made of synthetic resin occupying substantially the entire surface. It is possible to reduce man-hours and manufacturing costs.

Further, since the outer skin is disposed on the front surface side of the door portion, the design effect can be enhanced by using the outer skin exhibiting the decorative effect.

Further, since the outer skin is arranged up to the outer peripheral edge of the door portion and the hinge portion to exert a reinforcing effect, the door portion can be opened without any trouble when the airbag is inflated.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the door trim 10 of the embodiment is constructed so as to be arranged on the interior side of the vehicle door D, and the airbag 5 of the airbag apparatus M housed in the door D. And two substantially quadrangular plate-shaped doors 11 and 12 that open and break when the airbag 5 is inflated.

The door D is a metal inner panel 1
An outer panel 2, a door trim 10 fixed to the inner panel 1 and a reinforcing plate 3 thereof, and a door glass 4.

In addition, the airbag apparatus M holds an airbag 5 that is folded and stored, an inflator 6 that supplies inflation gas to the airbag 5, and the folded airbag 5 and the inflator 6. The backup plate 7 fixed to the reinforcing plate 3 is provided.

The door trim 10 is the door trim 1.
0, a trim body 13 made of synthetic resin such as polypropylene, which is arranged on substantially the entire surface of 0, and a skin 19, 20 arranged on the front surface side of the trim body 13 in the two door portions 11 and 12.
The outer skin 30 is arranged around the door portions 11 and 12 on the front surface side of the trim body 13. In addition,
The skin 30 is provided to further enhance the design effect of the door trim 10, and may be omitted.

As shown in FIGS. 1, 2 and 4 to 6, the trim main body 13 is provided on the outer peripheral portion of each door portion 11 and 12 on the front surface side so as to have a substantially "Sun" shape in a front view. Side groove 14
As shown in FIGS. 1 to 3 and 6 on the back side, as shown in FIGS. 1 to 3, there are provided ridges 16 having a substantially “Sun” shape in rear view. In addition, in FIG. 6, the door portion 12 side is actually a diagram in which the upper and lower sides are reversed.

The ridge 16 has a substantially H-shaped portion when viewed from the rear, and a portion 2 of the doors 11 and 12 to be broken in an open shape.
In this scheduled breakage portion 21, the rear surface side concave groove 17 is intermittently formed in the protrusion 16 of the trim body 13, and the rear surface side concave groove 17 is the front surface side of the door trim 10. It is formed by being arranged so as to coincide with the groove 14.

On the rear surface side of the trim body 13, the inner portion of the portion of the ridge 16 excluding the portion to be fractured 21 (the horizontal bar portions of the upper and lower ends of the letter "S") is The doors 11 and 12 serve as hinges 22 that serve as the center of rotation when the doors 11 and 12 are opened.
The trim main body 1 at the position where the respective skins 19 and 20 of 2 are arranged
The thin hinge groove 18 is arranged at the portion 3 in FIG.

Each of the outer skins 19, 20 and 30 is formed of a sheet material such as vinyl chloride which is formed with a drawing pattern or is flocked. And the epidermis 19/20
Is the inner peripheral surface 1 of the front-side concave groove 14 in the trim body 13.
5, the side surface 15a and the bottom surface 15b on the side of the door portions 11 and 12
The outer skin 30 is arranged up to the side surface 15c of the inner peripheral surface 15 of the front-side groove 14 away from the door portions 11 and 12 side.

The manufacture of the door trim 10 will be described. When the trim body 13 is molded, the outer skins 19, 20 and 30 are set as inserts in a molding die and molded.
It can be manufactured.

The front surface side concave groove 14 and the rear surface side concave groove 17 of the trim main body 13 are formed by ribs on the mold surface of the trim main body 13, and these ribs Since the edges of the skins 19 and 20, which are the portions of the bottom surface 15b of the groove, are sandwiched and supported, if the gate G (see FIG. 1) for injecting the molding material is arranged at an appropriate position, the skins 19 and 20 can be formed. Trim body 13 without shifting 20
Can be molded. Further, since the edges of the skin 30 are covered with the edges of the skins 19 and 20, it is possible to prevent the skin 30 from being turned over by the injection pressure of the molding material.

Further, at the time of molding the trim body 13, a bracket or the like for screwing the door trim 10 to the inner panel 1 or the reinforcing plate 3 is insert-molded.

The door trim 1 manufactured in this way
After attaching 0 to the door D in which the airbag device M is arranged, when the airbag 5 is inflated, the rear side recessed groove 17 provided in the trim body 13 at the outer peripheral edge of each door portion 11 and 12 is arranged. A part, that is, a portion to be broken 21 is broken, and the door portions 11 and 12 are in a double-opened state with the hinge portion 22 in which the hinge groove 18 is arranged and the thin portion of the trim body 13 is a center of rotation. It will be opened in.

When the door portions 11 and 12 are opened, the hinge portion 2
In 2, the outer skins 19 and 20 are embedded so as to be embedded beyond the hinge groove 18 of the trim body 13 that serves as the hinge portion 22, so that the outer skins 19 and 20 exert a reinforcing effect and do not break. The doors 11 and 12 will be opened. On the other hand, in the part other than the hinge part 22, that is, in the part to be broken 21, the outer skins 19 and 20 arrange the outer peripheral edges of the outer skins 19 and 20 along the outer peripheral edges on the front surface side of the door parts 11 and 12, Due to the reinforcing effect of the outer skins 19 and 20, the trim main body 13 on the outer peripheral edge of the door portions 11 and 12 can be smoothly broken without generating fragments.

Therefore, the door trim 10 of the embodiment can be manufactured by simply arranging and molding the outer skins 19, 20, and 30 as inserts when molding the synthetic resin trim body 13 occupying substantially the entire surface. ,
It is possible to reduce manufacturing man-hours and manufacturing costs.

Further, since the outer skins 19 and 20 are disposed on the front surface side of the door portions 11 and 12, it is possible to enhance the design effect by using the outer skins 19 and 20 exhibiting a decorative effect.

Further, the outer skins 19 and 20 are attached to the door portion 11 and 1.
Since the outer peripheral edge of 2 and the hinge portion 22 are arranged to exert a reinforcing effect, the door portions 11 and 12 can be opened without any hindrance when the airbag 5 is inflated.

[Brief description of drawings]

FIG. 1 is a sectional view showing a usage state of a door trim according to an embodiment of the present invention.

FIG. 2 is a front view of the door trim of the embodiment.

FIG. 3 is a rear view of the door trim of the embodiment.

4 is a sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

6 is a sectional view taken along line VI-VI of FIG.

[Explanation of symbols]

 5 ... Airbag, 10 ... Door trim, 11/12 ... Door part, 13 ... Trim main body, 14 ... Front side concave groove, 15 ... Inner peripheral surface, 17 ... Back side concave groove, 18 ... Hinge concave groove, 19. 20 ... skin, 22 ... hinge part, D ... door, M ... airbag device.

Claims (1)

[Claims] 1. An airbag arranged inside a vehicle door, comprising two substantially rectangular plate-shaped door portions which cover the accommodated airbag and which are broken and opened by opening when the airbag is inflated. A door trim for a device, which is a synthetic resin trim body that is disposed on substantially the entire surface of the door trim, and is disposed on the front surface side of the trim body in the two door portions, and is disposed as an insert when molding the trim body. The outer surface of the trim body is formed with a front surface side groove along the outer peripheral edge portion of each door portion, and the rear surface of the outer peripheral edge of each door portion is formed. A back surface side concave groove is formed along the fractured part, the skin is arranged up to the inner peripheral surface of the front surface side concave groove, and a hinge portion that serves as a rotation center when the door portion is opened is arranged in the skin. The back of the trim body at the part Air bag device for a door trim is disposed a hinge groove, characterized in that it is formed on.