JPH0538995A - Instrument panel with built-in air bag device for automobile - Google Patents

Abstract

PURPOSE:To improve the appearance and quality of an instrument panel and prevent it from being flawed. CONSTITUTION:Wire 11 is disposed with one end part 11a provided at the side part in skin 1c, at the end edge in three sides, formed into U-shape excluding one side for fitting hinges 4, of a lid 5. The other end part 11b of this wire 11 led into a panel body 1a through a gap 3b is connected to a wire take-up device 13 for making the inside of the skin 1c hollow to pull the wire 11. An air bag control unit is further connected to emit an operating signal to the wire take-up device 13 so as to make the inside of the skin 1c hollow by a collision signal and then to emit the expansion signal of an air bag device to an inflator control part so that the hollow part changed into a fragile part and the pad 1b in the gap 3b between the lid 5 and the panel body 1a are ruptured by the air bag device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument panel incorporating an automobile air bag device.

[0002]

2. Description of the Related Art An example of this type of technology is shown in FIG. 6 (the service manual structure edition "E-" issued by Honda Motor Co., Ltd. in October 1990).
KA7 type ").

That is, reference numeral 1 in the drawing is an instrument panel, which is formed of a panel body 1a made of a synthetic resin material such as polypropylene (PP) composite material and a foamed material such as polyurethane foam disposed on the panel body 1a. Pad 1b and pad 1b arranged on the surface of pad 1b
An airbag device 2 that is integrally configured with a skin 1c made of polyvinyl chloride (PVC) or the like that is adhered at the time of forming b, has an airbag 2a and an inflator 2b as main components below the instrument panel 1. It is stored. The inflator 2 of the airbag device 2 is attached to the instrument panel 1 facing the airbag device 2.
The air bag ejection opening 3 is formed so that the air bag 2a in which gas is ejected from the b and inflated and deployed can be ejected,
The opening 3 is attached to one side 3a of the opening 3 via a hinge (not shown) so that it can be opened or closed as shown by a chain double-dashed line or closed as shown by a solid line, and a gap 6 between the opening 3 is removed. And a lid 5 is provided to cover most of them.

[0004]

However, in such a conventional structure, the instrument panel 1 is used.
Since the gap 6 between the opening 3 and the lid 5 is always formed on the surface of the, the appearance is poor and the appearance quality may be impaired. In addition, the lid 5 has a large variation in thickness due to the nature of its constituent parts, so that the lid 5 may become higher or lower than the surface of the instrument panel 1 (FIG. 5 shows an example in which it becomes higher). In this case, since the peripheral edge of the lid 5 or the inner edge of the opening 3 is seen as a knurled surface, not only does it look bad, but also a child or the like may touch the peripheral edge of the lid 5 or the inner edge of the opening 3 to scratch. There are challenges.

The present invention has been made in view of such a conventional problem, and improves the appearance quality of the instrument panel and prevents the vehicle from being damaged by an instrument incorporating an automobile airbag device. The purpose is to provide a panel.

[0006]

An instrument panel incorporating an automobile airbag device according to the present invention includes:
The panel body, the pad arranged on the panel body, and the skin formed on the surface of the pad are integrally formed, and the panel body is inflated at a position facing the airbag apparatus when the airbag apparatus is operated. An airbag pop-out opening is formed so that the deploying air bag can pop out, and a lid is attached to one side of this opening so as to be openable and closable via a hinge and covers most except a gap between the opening and the opening. A wire having one end on any one side is arranged in the skin of the edge of the three sides formed in a U shape except for one side to which the hinge of the lid is attached, and the panel body is provided through the gap. A wire winding device is connected to the other end of the wire guided into the wire winding device, and the wire winding device operates so as to move the wire in the epidermis into a hollow shape by a collision signal. And then connecting an airbag control unit that issues an inflation and deployment signal of the airbag device to the inflator control unit, which causes the hollow portion of the lid to become a fragile portion and the portion of the pad in contact with the hollow portion to be broken. Characterize.

[0007]

[Operation] According to this structure, when a collision is detected, the airbag control unit is activated to first give a signal to the control unit of the wire winding device to pull the wire and remove one side to which the hinge of the lid is attached. The wire in the epidermis in the gap between the edges on the other three sides is removed, and the position of the epidermis wire becomes hollow. Next, by delaying the formation of the hollow portion, a signal is given to the airbag inflator to inflate and deploy the airbag, so that the hollow portion in which the lid is fragile and the portion of the pad in contact with the hollow portion The airbag is opened while being broken, and the airbag is inflated from the opened airbag ejection opening to protect the occupant. However, since the lid is not exposed on the skin of the instrument panel at all times, it is flush.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings by attaching the same reference numerals to the same or equivalent parts as in the conventional example.
1 to 5, reference numeral 1 denotes an instrument panel, which is formed of a panel body 1a made of a synthetic resin material such as polypropylene (PP) composite material and a foamed material such as polyurethane foam disposed on the panel body 1a. The pad 1b and the pad 1b arranged on the surface of the pad 1b
It is integrally formed with a skin 1c made of polyvinyl chloride (PVC) or the like that is adhered at the time of forming b.

Below the instrument panel 1, an airbag device 2 having an airbag 2a and an inflator 2b as main components is housed. The inflator 2b is fixed to a steering member 2c installed between the side parts of the automobile.

An air bag 2a in which gas is ejected from an inflator 2b of the air bag device 2 and inflates and deploys to the instrument panel 1 facing the air bag device 2.
The airbag pop-out opening 3 is formed so as to be able to pop out.

An upper end side 3a, which is one side of the air bag ejection opening 3, is openably and closably attached via, for example, iron hinges 4 and 4 and almost covers a gap 3b between the opening 3 and the opening. A lid 5 is provided. The lid 5 is opened by the airbag 2a which is inflated and deployed when the airbag device 2 is activated. or,
The hinges 4 and 4 are attached to the front surface side of the panel body 1a and the lid 5 so that the lid 5 opens only on the front surface side of the instrument panel 1.

Except for the upper side 3a which is one side to which the hinges 4 and 4 of the lid 5 are attached, the back side of the outer skin 1c, that is, the pad 1b side, of the edges of the three sides formed in a U shape is projected. Then, the wire 11 is arranged in the protrusion 10. One end 11a of the wire 11 is located on the vehicle center side of the lid as shown in FIG. The pad 1b at the portion where the protrusion 10 is provided has a recess 12 for receiving the protrusion 10, and the deepest portion of the recess 12 is the pad 1b.
It is formed thinner than the general portion of b.

The other end 11b of the wire 11 guided to the inside (left side in FIG. 2) of the panel body 1a through the gap 3b is connected to the inside of the skin 1c as shown by an arrow in FIG. A wire take-up device 13 is connected which pulls it in a moving manner.

Inflator 2b of the airbag device 2
The expansion and expansion signal given to the air bag inflator is delayed by the delay circuit 14. Therefore, before the expansion and expansion signal is generated, the air bag inflator is operated so as to generate the operation signal of the wire winding device 13 so as to make the inside of the outer skin 1c hollow. An airbag control unit 17 is connected to the control unit 15 and the control unit 16 of the wire winding device 13. A collision detection sensor 18 is connected to the airbag control unit 17.

As shown in FIG. 5, the wire winding device 13 has a piston 20 connected to the other end 11b of the wire 11, a cylinder 21 which allows the piston 20 to move forward and backward, and a heat generated by a signal from the controller 16. Ignition heater 2
2 and an ignition charge 23 that is ignited by the ignition heater 22
And a propellant 24 for moving the piston 20 in the cylinder 21 so as to pull it out to the other end 11b side of the wire 11 by the gas pressure generated by being ignited by the ignition charge 23. Reference numeral 19 is a glove box.

Next, the operation will be described. Collision detection sensor 18
When a vehicle collision is detected, the airbag control unit 17
Is activated to first give a signal to the control unit 16 of the wire winding device 13. By this signal, the ignition heater 2
2 to generate heat, and the igniting charge 23 is ignited to propellant 2
4 ignites. The piston 20 moves in the cylinder 21 by the gas generated by the ignition of the propellant 24. The other end 1 of the wire 11 connected to the moved piston 20
1b is pulled as shown by an arrow in FIG. 3 to remove the upper edge 3a, which is one side to which the hinges 4 and 4 of the lid 5 are attached, and the outer surface 1 of the gap 3b at the three edges formed in a U shape.
It moves in c and finally the wire 11 comes off and the epidermis 1
The position of the wire 11 of c was hollow. Next, the airbag inflator 2 is delayed in forming the hollow portion.
By giving a signal to b to inflate and deploy the airbag 2a, the outer skin 1c of the hollow portion where the lid 5 is a fragile portion
Further, as described above, the thin-walled pad 1b is opened while being broken, and the airbag ejection opening 3 is opened. Thus, the inflated and deployed airbag 2a is ejected to the outside through the airbag ejection opening 3 and fulfills a predetermined occupant cushioning function.

In this way, the airbag pop-out opening 3 is first formed on the surface of the instrument panel 1 when the airbag device 2 is actuated at the time of a vehicle collision, and normally no gap is formed in the instrument panel 1. Since it is not formed on the outer skin 1c and is flush, it looks very good, the appearance quality is improved and no edges are generated, so that the nails are not caught and the instrument panel 1 is scratched. , And the structure is extremely simple and inexpensive.

[0018]

The instrument panel incorporating the automobile airbag device of the present invention includes a panel body,
An air bag that is integrally formed by a pad arranged on the panel body and a skin formed on the surface of the pad, and inflates and deploys at a position of the panel body facing the air bag device when the air bag device operates. The airbag pop-out opening is formed so that the pop-out can be popped out, and a lid is attached to one side of the opening so as to be openable and closable via a hinge and covers most of the lid except a gap between the opening and the hinge of the lid. A wire having one end on either side of the outer skin of the edges on the three sides formed in a U shape except for the one side to be attached to is attached to the panel body through the gap. A wire take-up device is coupled to the other end of the wire, and an operation signal is issued to the wire take-up device to move the wire in the epidermis to a hollow state by a collision signal, and then An air bag control unit is connected to the inflator control section for inflating and deploying a signal for inflating and expanding the air bag device, which breaks the fragile hollow portion of the pad and the pad portion in contact with the hollow portion. When a collision is detected, the airbag control unit is activated to first give a signal to the control unit of the wire winding device to pull the wire and pull the wire to remove the edges of the other three sides except the one side to which the hinge of the lid is attached. The wire in the skin of the gap is pulled out, and the position of the wire of the skin is hollow, and then, a signal is given to the airbag inflator by delaying the formation of the hollow portion to inflate and deploy the airbag. Then, the lid is opened while breaking the hollow portion where the lid is a fragile portion and the portion of the pad that is in contact with the hollow portion, and the airbag is opened from the opened airbag popping opening. The lid is exposed to protect the occupant, and the lid is not exposed on the skin of the instrument panel at all times, so it is flush, so the appearance quality of the instrument panel is improved and scratches are prevented. It has the practical effect of being able to do something.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a main part according to an embodiment of the present invention.

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

3 is a perspective view showing only the wire of FIG. 1. FIG.

FIG. 4 is a block diagram with respect to FIG. 1.

5 is a cross-sectional view of the wire winding device of FIG.

FIG. 6 is a vertical sectional view showing a conventional example.

[Explanation of symbols]

 1 Instrument Panel 1a Panel Body 1b Pad 1c Skin 2 Airbag Device 2a Airbag 2b Inflator 3 Airbag Ejection Opening 3b Gap 4 Hinge 5 Lid 10 Projection 11 Wire 11a One End 11b Other End 12 Recess 13 Wire Winding apparatus

Claims (1)

[Claims] 1. An airbag integrally formed of a panel body, a pad arranged on the panel body, and a skin formed on a surface of the pad, the airbag being provided at a position of the panel body facing the airbag device. An air bag pop-out opening is formed so that the air bag that inflates and deploys when the device is in operation can be popped out, and it is attached to one side of this opening openably and closably via a hinge, and most of it is removed except for the gap between this opening In an instrument panel having a built-in airbag device provided with a lid for covering, in any one of the sides of the outer edge of the three sides formed in a U shape except for one side to which the hinge of the lid is attached. A wire having one end is arranged, a wire winding device is coupled to the other end of the wire guided into the panel body through the gap, and the skin is activated by a collision signal. The air bag causes the wire take-up device to issue an operation signal to move the wire to make it hollow, and then break the hollow portion of the lid, which is weakened, and the pad portion in contact with the hollow portion. An instrument panel having a built-in air bag device for an automobile, which is connected to an air bag control unit that outputs an inflation and expansion signal of the device to an inflator control section.