JPH04274947A - Air bag device - Google Patents

Abstract

PURPOSE:To mount a cover member which covers air bag proper in the folding and storage condition on a base plate easily and speedily, prevent the air bag proper from being caught between the cover member and base plate, improve appearance, and make it possible to recognize the folding and storage condition of air bag proper from the outside. CONSTITUTION:A cover member 15 which covers the air bag proper 14 in the folding condition is molded by synthetic resin material. At least a part of outer peripheral edge of the cover member 15 is molded by transparent or semi-transparent synthetic resin material.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an airbag device for protecting occupants in the event of a collision of a vehicle, etc. More specifically, the present invention relates to an airbag device that protects occupants in the event of a collision of a vehicle or the like. an airbag body having a gas inlet through which gas flows in and is fixed to the base plate; and a cover member that covers the airbag body in a folded and stored state and has an outer peripheral edge fixed to an end of the base plate. The present invention relates to an airbag device.

0002

2. Description of the Related Art Air bag devices have been known as a protection device for occupants of vehicles and the like. This protective device is disclosed in Japanese Patent Publication No. 56-43890 and Japanese Utility Model Publication No. 61-1
There are publications such as No. 85642. As shown in FIG. 3, a gas generator 2 is fixed to a base plate 1 attached to a fixed side of an instrument panel, a steering wheel, etc., and an airbag body 3 having a gas inlet 4 is connected via a retainer 5 to a rivet 6 or a bolt. etc., and when the gas generator is activated under predetermined conditions, gas instantaneously flows into the airbag body 3, and the airbag body 3 instantaneously inflates. The airbag main body 3 is stored in a folded state inside a cover member 7 made of synthetic resin, and is covered with its position regulated, so that the airbag main body 3 is placed in contact with a component on the instrument panel side of a vehicle, etc. We are trying not to come into contact with them. The cover member 7
The outer peripheral edge 7a of the base plate 1 is fixed to the end portion 1a of the base plate 1 with a rivet 8, a bolt, or the like. When the airbag main body 3 is inflated, the thin portion 7b formed on the upper surface of the cover member 7 is broken, and the airbag main body 3 is inflated forward. In the conventional airbag device, the airbag main body 3 is housed inside a cover member 7 made of synthetic resin colored black, so that the inside of the cover member 7 cannot be seen through. Further, a synthetic resin cover member 7 colored black is used so that the cover member 7 is difficult to see through gaps between parts on the instrument panel side of a vehicle or the like.

0003

However, in the conventional airbag device, since the cover member 7 is colored black, when the airbag main body 3 is folded, the outer peripheral edge of the cover member 7 7a to base plate 1
When fixing the rivet 8 to the end portion 1a of the airbag, there is a risk that the airbag body 3 will be bitten, and this biting state cannot be visually observed from the outside. Therefore, when the airbag body 3 is inflated, the fabric of the airbag body 3 may be damaged, and there is a risk that sufficient occupant restraint performance may not be exhibited. In addition, if vehicle vibration is continuously applied to the airbag body 3 while the vehicle is running after the cover member 7 is installed, it can be checked from the outside whether the airbag body 3 is accurately maintained in its folded state. It was something that could not be confirmed. It is an object of the present invention to prevent the airbag body from getting caught when installing the cover member, to make it possible to visually check the installation state of the cover member from the outside, and to easily and quickly install the cover member. Also, if vehicle vibration is applied to the airbag body while the vehicle is running,
It is possible to easily check from the outside whether or not the airbag body is folded and stored, and the airbag body can be reliably inflated in the desired shape in the event of a collision or other emergency, making it extremely safe. The present invention provides an airbag device with excellent performance.

0004

[Means for Solving the Problems] The present invention has been made in view of the above-mentioned problems, and includes a gas generator fixed to a base plate, and a gas inlet into which gas from the gas generator flows, In an airbag device comprising an airbag main body fixed to the base plate, and a cover member that covers the airbag main body in a folded and stored state and has an outer peripheral edge fixed to an end of the base plate, the outer side of the cover member It is characterized in that at least a portion of the periphery is made of a transparent or translucent synthetic resin material.

[0005]

[Operation] According to the present invention, at least a portion of the outer periphery of the cover member that covers the airbag body in the folded state is formed from a transparent or translucent synthetic resin material, so that the airbag body can be covered in the folded state. The cover member can be installed while checking the airbag body, preventing the airbag body from getting caught, and also preventing the airbag body from collapsing even if vehicle vibration is applied to the airbag body while the vehicle is running. It is possible to easily check from the outside whether or not the stored state has changed. Further, since at least a portion of the outer peripheral edge of the cover member is left in an opaque state, the cover member is difficult to see through gaps between parts on the instrument panel side of a vehicle, and there is no risk of spoiling the appearance.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The airbag device according to the present invention will be described in detail below with reference to the drawings. 1 and 2 schematically show an embodiment of an airbag device according to the present invention, and the fixed side of the airbag device 11 to which the base plate 13 is attached is the instrument panel side or the steering side. It can also be attached to the door side, seat, etc. at an appropriate location. As shown in FIG. 1, an airbag device 11
As shown in FIG. 3, bolts and
The airbag body 14 includes a gas generator 12 fixed by a fixing means such as a nut, and an airbag body 14 having a gas inlet into which gas from the gas generator 12 flows. The airbag main body 14 is covered with a cover member 15 in a folded state. The cover member 15 is the base plate 13
A cover base 15a made of, for example, a synthetic resin and having an open lower part fixed to the end 13a by a plurality of rivets 17 or the like.
and the cover base 15a fixed by high frequency welding, adhesive, etc. along the outer peripheral edge of the cover base 15a.
The cover upper part 15b is made of synthetic resin with lower strength. The cover member 15 is made of, for example, PP,
Synthetic resin materials such as PC and PE, or their mixtures with elastomers, are used. Note that the cover member 15 is not limited to being formed from a cover base 15a and a cover upper part 15b, but may be formed by integrally forming a cover base 15a and a cover upper part 15b. It is sufficient if 15b can be easily broken. A perforation slit 21 is formed in the longitudinal center of the cover upper part 15b. Note that a diamond-shaped through hole or the like may be formed in the center of the perforation slit 21. Further, reference numeral 15c is a through hole for the rivet 17.

As shown in FIGS. 1 and 2, at least the cover base l5a of the cover member 15 is made of a transparent or translucent synthetic resin material. The transparent or translucent cover base 15a and the opaque cover top 15b can be integrally formed by injection molding. The length of the transparent or translucent cover base 15a is not limited to that shown in the drawings, and one side may be shorter than the other side. Alternatively, the entire cover member 15 may be made of a transparent or translucent synthetic resin material, and a portion thereof may be made opaque by applying paint or bonding a colored film to the cover upper part 15b.

According to this configuration, at least a portion of the outer periphery of the cover member 15 that covers the airbag body 14 in a folded state is formed from a transparent or translucent synthetic resin material. The cover member 15 can be attached while checking the folded state of the airbag, and the airbag body can be prevented from getting caught.
It becomes extremely easy to insert the rivet 17 into the airbag body 14 through the airbag body 3b, making it possible to perform the assembly work simply and quickly. A transparent or translucent cover member 15 determines whether or not the folded storage state of item 14 is deformed.
It can be easily checked from outside. Moreover, since the cover upper part 15b is formed to be opaque, the cover member 15 is difficult to see through the gap between parts on the instrument panel side of a vehicle, and there is no risk of spoiling the appearance.

[0009]

The above is the configuration of an embodiment of the airbag device according to the present invention. According to this configuration, at least a part of the outer periphery of the cover member is made of a transparent or translucent synthetic resin material. Since the airbag body is formed with a larger diameter, it is possible to prevent the airbag body from getting caught when installing the cover member, and the installation state of the cover member can be visually confirmed from the outside, making it possible to install the cover member easily and quickly. In addition, even if vehicle vibration is applied to the airbag body while the vehicle is running, it is possible to easily check from the outside of the cover member whether or not the airbag body is deformed in its folded storage state. Therefore, it is possible to obtain an airbag device which is extremely safe and can reliably inflate the airbag body in a desired shape in the event of an emergency such as a collision.

[Brief explanation of the drawing]

FIG. 1 is a partially enlarged sectional view showing an airbag device according to the present invention.

FIG. 2 is a perspective view of a cover member of the present invention.

FIG. 3 is a sectional view of a conventional airbag device.

[Explanation of symbols]

11 Airbag device 13 Base plate 14 Airbag body 15 Cover member 15a Cover base 15b Upper part of cover 17 Rivet

Claims (1)

[Claims] Claim 1: A gas generator having a gas generator fixed to a base plate and a gas inlet into which gas from the gas generator flows, wherein the airbag body fixed to the base plate and the airbag body can be folded and stored. coated in condition,
An airbag device comprising a cover member having an outer periphery fixed to an end of the base plate, wherein at least a part of the outer periphery of the cover member is made of a transparent or translucent synthetic resin material. bag equipment.