JPH0826057A - Air bag device for side collision - Google Patents

Abstract

PURPOSE:To obtain an air bag device for side collision which can coven the side of a driver in a wide range and possesses the function for protecting the driver for side collision. CONSTITUTION:At the car interior side upper part of a door inner panel 3 which constitutes the car interior side of the door body 2 of a vehicle. a recessed part 5 toward the car outside which ranges full at nearly the longitudinal width of the door body 2 is formed, and an air bag 7 which is formed by enclosing the whole by a surface skin 8 which can be easily exfoliated and a gas generator 6 for blowing gas into and expand the air bag 7 are incorporated into the recessed part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air bag device which functions against a side collision of a vehicle.

[0002]

2. Description of the Related Art Most of air bag devices which function for side collision are stored in a door of a vehicle. For example, FIG.
A door inner panel 101 that constitutes a door as shown in FIG.
Container-shaped backup plate 102 attached to the
An air bag storage portion is constituted by the air bag lid 103 that normally closes the opening inside the vehicle. The airbag 10 has a bag body 10 therein.
4 and an air bag including a gas generator that generates gas for inflating the same. The airbag lid 103 has a backup plate 10 at the bottom.
2 is tightened and fixed to the lower edge, and the upper part is shown in FIG.
It is held by a holding member 105 provided on the upper side of the backup plate 102 as shown in FIG. The holding member 105 has a protrusion that can be inserted into a stopper hole 106 formed on the side of the airbag lid 103, and a retaining piece 107 is fitted to the end of this protrusion. Retaining piece 107
Is released from the protruding portion by receiving the inflation pressure of the air bag, whereby the upper side of the air bag lid 103 is freed and pushed toward the inside of the vehicle with the inflation of the air bag, and the bag body shown in phantom in FIG. The air bag will be deployed like 104A.

A door trim, which constitutes the interior of the door, is mounted on the door inner panel 101 so as not to prevent the opening of the air bag lid 103 in the air bag storage portion. As shown in FIG. 6, the door trim is the door trim body 1
08 and the upper portion of the door trim upper portion 109, the armrest 1 of the door trim body 108
The upper edge portion where 10 is attached is aligned with the tightening portion of the airbag lid 103 and the backup plate 102,
The lower edge portion of the door trim upper portion 109 is aligned with the upper portion of the airbag lid 103.

[0004]

In the conventional air bag apparatus for side collision as described above, the air bag can cover only a part of the side of the occupant, and the size of the physique and the component in the diagonal direction can prevent the collision. If added, there is a problem that the function of protecting the occupant from an impact is extremely deteriorated. Further, there is a problem that the structure of the air bag storage section becomes complicated and assembly is troublesome.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and its problem is that it can widely cover the sides of the occupant and has an excellent function of protecting the occupant against side collisions. The purpose is to obtain an air bag device for a side impact, and to simplify the configuration and improve the assemblability.

[0006]

In order to achieve the above-mentioned object, the invention of claim 1 is a vehicle having a door inner panel which constitutes an inner side of a door main body of a vehicle and which is substantially above and below the inner width of the door inner panel. A means for incorporating an air bag in which a recess is formed on the outside and the whole recess is covered with a skin that is easily peeled off and a gas generator that blows gas into the bag to expand is adopted.

In order to achieve the above object, a second aspect of the invention is to form the outer skin of the means according to the first aspect of the invention into a purse-bag shape in which the mouth is closed by a cord easily cut behind a folded air bag. Adopt the means to do.

[0008]

According to the above-mentioned means, the air bag is deployed over the entire front and rear width of the door body, so that the side of the occupant can be widely covered by the air bag.

According to the second aspect of the present invention, in addition to the action according to the first aspect, the folded airbag can be assembled simply by wrapping it in a skin like a purse bag and storing it in a recess.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a vertical cross-sectional side view of a main part of, for example, a driver's seat door in a vehicle as an application example of the present invention. The right side in FIG. 1 is the vehicle exterior side and the left side is the vehicle interior side. In FIG. 1, 20 is a door outer panel and 2 is a door outer panel.
1 indicates a door glass. The outermost part of the door on the inside of the vehicle is composed of a door trim 1 (which is often used in taxi vehicles, trucks, etc.) without a door trim upper part called a half trim. It is attached to a door inner panel 3. As shown in FIG. 2, the door trim 1 is provided with door accessories such as an armrest 4A and a pocket portion 4B on the surface on the inside of the vehicle.

As shown in FIG. 2, the door inner panel 3
In the lower part of the window frame portion, a recess 5 that is open to the inside of the vehicle is formed over the entire front and rear width of the door body 2. A gas generator 6 is incorporated into the recess 5 at the innermost portion thereof, and an air bag 7 folded inside the vehicle is enclosed in a soft skin 8. The air bag 7 has a size that covers the entire area of the recess 5 and is built in such a state that the gas can be supplied from the gas generator 6. As shown in FIGS. 3 and 4, the outer skin 8 wraps the folded air bag 7, is formed in a drawstring bag shape that can close the mouth 10 with the cord 9 that is easily cut behind, and is housed in the recess 5 of the door inner panel 3. In this state, as shown in FIG. 1, it is presented as a strip-shaped interior element under the window frame of the door body 2.

In the air bag device having the above structure, the air bag 7 stored in the recess 5 functions as follows in the event of a side collision. When a collision is detected by a sensor (not shown), gas is immediately supplied from the gas generator 6 to the folded air bag 7, and the air bag 7 begins to expand. The cord 9 of the epidermis 8 which has been subjected to the expansion pressure due to the expansion of the air bag 7 is cut off, and the air bag 7 is immediately blown,
As shown in FIG. 5, the door body 2 is expanded to the full width in the front-rear direction to protect an occupant from a side impact. In this way, since the deployment range of the airbag 7 is a range that covers almost the entire lateral side of the occupant, a function of protecting the occupant against a side collision including a physical size and an impact element in an oblique direction. Can be fulfilled. The skin 8 blows inside the vehicle as the air bag 7 is deployed, but it is soft and does not cause injury to the occupant.

This air bag device is extremely easy to assemble, and the number of parts to be handled is small. That is, the folded air bag 7 connected to the gas generator 6 is wrapped in a skin 8 in a manner to be housed in a drawstring bag, and the mouth 10 of the bag-shaped skin 8 is tightened with the cord 9 and pushed into the recess 5. All you have to do is store it. Since the skin 8 is presented as a strip-shaped interior element under the window frame of the door body 2, it is possible to improve the appearance of the door by devising the design of the skin.

[0014]

As is apparent from the above description of the embodiment, according to the invention of claim 1, the air bag is deployed over the full width of the front and rear of the door body, and the air bag is widely spread to the side of the occupant. Can protect the occupant against a side collision including a physical size and an oblique impact element.

According to the invention of claim 2, in addition to the effect of claim 1, the folded airbag can be assembled simply by wrapping it in a skin as if it were stored in a drawstring bag and then storing it in a recess. An air bag device for a side impact having good properties can be obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part of a vehicle door as an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a configuration of a vehicle door as an embodiment of the present invention.

FIG. 3 is a perspective view showing an air bag storage form of a side collision air bag device as an embodiment of the present invention.

FIG. 4 is an enlarged sectional view taken along the line AA of FIG.

FIG. 5 is an explanatory view of the operation of the side collision air bag device according to the embodiment of the present invention.

FIG. 6 is a vertical cross-sectional side view of a main part of a conventional vehicle door.

FIG. 7 is an enlarged exploded perspective view showing a configuration of an arrow B portion in FIG.

[Explanation of symbols]

 2 Door body 3 Door inner panel 5 Recess 6 Gas generator 7 Air bag 8 Skin 9 Cable material 10 Mouth

Claims (2)

[Claims] 1. A skin for forming a vehicle inner side of a door main body of a vehicle, in which a concave portion extending toward the outer side of the vehicle is formed in an upper portion on the inner side of the door inner panel, the concave portion extending toward the outer side of the door main body so as to easily peel off the entire body. An air bag device for a side impact, which is characterized by incorporating an air bag wrapped in and wrapped with a gas generator that injects gas into the air bag to expand the air bag. 2. The airbag apparatus for side impact according to claim 1, wherein the airbag is formed into a drawstring bag with a mouth closed by a cord that is easily cut behind the airbag in which the skin is folded. Airbag device for side impact.