JPH106910A - Air bag main body of air bag device for side collision of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an upper part of an air bag main body from protruding to the outside from a position of a door glass by bending and inflating the upper part of the air bag main body on an occupant side by a hoisting belt when the air bag main body is inflated. SOLUTION: A hoisting belt 21 is provided on the outside of a basic cloth 15a on a side which is opposed to an occupant side of an air bag main body 15. An upper end part 21a of the hoisting belt 21 is sewn and fixed in an upper part in the outside of the basic cloth 15a on the side which is opposed to the occupant side, and a lower end part 21b thereof is fixed on a storage vessel 12 side of the air bag main body 15 in a condition in which it is tightened together when a gas generator 17 is fixed. The upper end part 21a of the hoisting belt 21 is sewn and fixed on the basic cloth 15a on the side which is opposed to the occupant side in a condition in which the basic cloth 15a is loosened. Consequently, the basic cloth 15a on the side which is opposed to the occupant side is not stretched easily in the vertical direction, a basic cloth 15b on a side which is opposed to a door side is stretched easily in the vertical direction, and an upper part of the air bag main body 15 is inflated in a condition in which it is bent toward the occupant side when the air bag main body 15 is inflated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag body of a side collision airbag device for a vehicle which protects an occupant in the event of an automobile collision. More specifically, the present invention relates to a seat frame and an attachment to the seat frame. A storage container provided on a side portion of a vehicle seat including a pad material to be provided and a skin material covering the pad material and attached to the seat frame; a gas generator stored and fixed to the storage container; The present invention relates to an airbag body of a side collision airbag device for a vehicle, which is fixed to the storage container so that gas ejected from the gas generator flows in when the gas generator operates.

[0002]

2. Description of the Related Art Conventionally, an airbag device has been known as a device for protecting a vehicle occupant. This airbag device is disclosed in Japanese Patent Publication No. 56-43890,
Japanese Patent Application Laid-Open No. 54-69543 and the like exist as a structure for holding the airbag body. Japanese Utility Model Laid-Open No. 61-85549 discloses a technique for covering and protecting a sewn portion of an airbag body.

[0003] As an airbag device, there is known an airbag device which is attached to an instrument panel or a steering wheel, or a door or a seat back. When the gas generator of the airbag device attached to the side part of the seat back detects the impact of the side part, the gas generator is activated, and the gas instantaneously flows into the airbag body,
The airbag body is inflated to the side of the occupant instantaneously.

As shown in FIG. 4, an airbag device 11 provided on the side of the seat back 3 of the vehicle seat 1 is provided outside the side of the seat back 3 facing the door 5 on the side wall of the vehicle body. An airbag body 15 is provided which inflates in a space perpendicular to the door 5 or between the occupant H and the door 5.
This airbag device 11 has to be disposed at the rear of the pad material of the seat back 3 in consideration of the getting on / off and cushioning properties of the vehicle seat 1.

[0005] The seat back 3 includes a seat frame 3a,
It comprises a pad material attached to the seat frame 3a, and a skin material covering the pad material. An airbag device 11 is provided on a side portion of the seatback 3. The airbag device 11 includes a storage container 12 attached to the seat frame 3a, a gas generator 17 stored and fixed in the storage container 12, and An airbag main body 15 is fixed so that gas ejected from the gas generator 17 flows in when the gas generator 17 is operated.

The airbag body 15 is formed by sewing outer peripheral edges of a plurality of base fabrics 15a and 15b facing the occupant H and the door 5, respectively.

[0007]

When the airbag body 15 of the airbag device 11 is deployed due to a side collision or the like, the door 5 on the side wall of the vehicle body is often damaged, and the door glass 5a is often damaged. And therefore the airbag body 15
When the airbag body is inflated, the airbag body 15 is pushed by the head of the occupant H, and there is a possibility that the upper portion of the airbag body 15 protrudes outside the position of the broken door glass 5a of the door 5. Further, when the airbag body 15 is inflated, the airbag body 15 does not inflate toward the occupant H, so that the occupant restraint property is lacking and the effect of protecting the occupant is weak.

An object of the present invention is to allow the upper portion of the airbag body to be sufficiently curved and inflated toward the occupant when the airbag body is inflated, so that the upper portion of the airbag body is pushed by the occupant's head from the position of the broken door glass. There is no danger that the airbag body will protrude to the outside, and there is no danger that the airbag body will collide with the door and door glass, etc. An airbag body of an airbag device is provided.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an airbag body of a vehicle side airbag device according to claim 1 of the present invention comprises a seat frame, Pad material attached to the seat frame,
A storage container provided on a side portion of a vehicle seat made of a skin material covering the pad material and attached to the seat frame, a gas generator stored and fixed in the storage container,
An airbag body of a side collision airbag device of a vehicle fixed to the storage container so that gas ejected from the gas generator flows in at the time of operation of the gas generator,
The airbag body is formed so as to break and swell the sewing portion of the skin material, and the airbag body is formed by sewing outer peripheral edges of a plurality of base fabrics facing the occupant side and the door side, respectively. A suspension belt is provided on the side of the base fabric facing the occupant side, and an upper end of the suspension belt is sewn to an upper portion of the base fabric on the side facing the occupant side, and a lower end of the suspension belt is provided on the airbag body. The airbag body is fixed to the storage container side, and the upper portion of the airbag body is curved and inflated toward the occupant by the suspension belt when the airbag body is inflated.

According to a second aspect of the present invention, an airbag body of a side airbag device for a vehicle comprises a seat frame, a pad material attached to the seat frame, and a skin material covering the pad material. A storage container provided on a side portion of the vehicle seat and attached to the seat frame;
A gas generator stored and fixed in the storage container, and a side collision airbag for a vehicle fixed to the storage container so that gas ejected from the gas generator flows when the gas generator is operated. In the airbag main body of the device, the airbag main body is configured to break and swell the sewn portion of the skin material, and the airbag main body is provided outside of a plurality of base fabrics facing the occupant side and the door side, respectively. A suspension belt is provided outside the base fabric on the side facing the occupant side, and the upper end of the suspension belt is sewn on the upper outside of the base fabric on the side facing the occupant side. The lower end portion is fixed to the storage container side of the airbag body, and the upper portion of the airbag body is curved and inflated toward the occupant by the suspension belt when the airbag body is inflated. .

According to the airbag body of the airbag device for a side collision of a vehicle according to the first aspect of the present invention, the airbag body sew the outer peripheral edges of a plurality of base cloths facing the occupant side and the door side, respectively. A hanging belt is provided on the side of the base fabric facing the occupant side, and an upper end of the hanging belt is sewn to an upper portion of the base fabric on the side facing the occupant side, and a lower end is formed. The upper portion of the airbag body is fixed to the storage container side of the airbag body, and the upper portion of the airbag body is curved and inflated to the occupant side by the suspension belt when the airbag body is inflated. The base fabric on the side facing the side is difficult to stretch in the up and down direction, and the base fabric on the side facing the door side is easy to stretch in the up and down and left and right directions. You can hold down the airbag book The upper to the occupant side can be curved bulge, thereby improving the occupant restraint property.

According to the airbag body of the vehicle side collision airbag device according to the second aspect of the present invention, the airbag body sew the outer peripheral edges of a plurality of base fabrics facing the occupant side and the door side, respectively. A suspension belt is provided on the outside of the base fabric on the side facing the occupant side, and an upper end of the suspension belt is sewn on the upper outside of the base fabric on the side facing the occupant side. The airbag body is fixed to the storage container side of the airbag body, and when the airbag body is inflated, the upper portion of the airbag body is curved and inflated toward the occupant by the suspension belt. Sometimes the base fabric facing the occupant side is difficult to stretch in the vertical direction, and the base fabric facing the door side is easy to stretch in the vertical and horizontal directions. Can be suppressed as much as possible, and air The upper part of the bag body can be curved and bulged toward the occupant, improving the restraint of the occupant, making it easy to sew the suspension belt, easily adjust the length of the suspension belt, and easily change the design. I can do it.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an airbag body of a vehicle side airbag device according to the present invention will be described in detail with reference to the drawings. 1 to 3 show an embodiment of an airbag body of a side collision airbag device for a vehicle according to the present invention. Parts corresponding to those in FIG. Detailed description is omitted.

The airbag body 15 of the airbag device 11 on the door 5 side has a base cloth 15a which is relatively long in the vertical direction and which faces the occupant H side, and a base cloth 15b which faces the door 5 side. Is formed by sewing the outer peripheral edge of the main body. Reference numeral 16 indicates a sewing portion.

As shown in FIG. 3, a suspension belt 21 is provided outside the base cloth 15a on the side of the airbag body 15 facing the occupant H side. Upper end 2 of this suspension belt 21
1a is sewn on the outer upper side of the base cloth 15a on the side facing the occupant H side, and the lower end 21b is fixed to the storage container 12 side of the airbag body 15 in a state where the gas generator 17 is fixed and fastened together. . In FIG. 3, reference numeral 18a denotes a bolt, and 18b denotes a nut.

From the sewn portion 23 of the upper end 21a of the suspension belt 21 to the fixing portion 25 of the lower end 21b of the suspension belt 21
The length L1 to the base cloth 15a on the side facing the occupant H side
L2 from the sewn portion 23 of the upper end portion 21a of the suspension belt 21 to the fixing portion 25 of the lower end portion 21b of the suspension belt 21
It is formed shorter. That is, the upper end 2 of the suspension belt 21 is loosened with the base cloth 15a facing the occupant H side loosened.
1a is sewn to the base cloth 15a.

In the present embodiment, the suspension belt 21 is provided outside the airbag body 15 so that the sewing operation of the suspension belt 21 is easy, and the length of the suspension belt 21 can be easily adjusted and the design can be easily changed. However, it may be provided inside the airbag body 15. After the upper end 21a of the suspension belt 21 is sewn to the base cloth 15a in the same length,
The intermediate part of the suspension belt 21 is picked and sewn to
Can be formed to be short.

Further, in the present embodiment, the suspension belt 21
Is formed in a curved state and wide. However, the curved state is not limited to the one in which one suspension belt 21 is used, and two or more narrow suspension belts 21 are used. In this case, the tensile length of the two or more suspension belts 21 with respect to the base cloth 15a, that is, the base cloth 15
It is also possible to make the slack length of a different so as to change the tension.

In this embodiment, the case where the airbag device is provided on the seat back 3 of the vehicle seat 1 has been described. However, the present invention is similarly applied to the airbag device provided on the door 5 on the side wall of the vehicle body of the vehicle. Is what you can do.

Since the upper end 21a of the suspension belt 21 is sewn to the upper outside of the base cloth 15a on the side facing the occupant H, the base cloth 15a on the side facing the occupant H is unlikely to extend in the vertical direction. The base cloth 15b on the side facing the door 5 is easy to expand in the vertical direction, and as shown by an arrow a in FIG.
It bulges out in a curved state toward the side.

[0021]

The above is an embodiment of the airbag body of the vehicle side collision airbag apparatus according to the present invention. According to this structure, the airbag body faces the occupant side and the door side, respectively. A plurality of base fabrics are formed by sewing the outer peripheral edges of the base fabric, and a suspension belt is provided on the base fabric side opposite to the occupant side, and the upper end of the suspension belt is opposed to the occupant side. The upper end of the airbag body is curved and expanded toward the occupant by the suspension belt when the airbag body is inflated. Therefore, when the airbag body is inflated, the base cloth on the side facing the occupant is unlikely to expand in the vertical direction, and the base cloth on the side facing the door side is easy to expand in the vertical and horizontal directions. Move outwards as much as possible with the suspension belt. Rukoto can, the upper portion of the airbag body toward the occupant can be curved bulge, thereby improving the occupant restraint property.

According to the airbag body of the vehicle side airbag apparatus according to the second aspect of the present invention, the airbag body sew the outer peripheral edges of a plurality of base fabrics facing the occupant side and the door side, respectively. A suspension belt is provided on the outside of the base fabric on the side facing the occupant side, and an upper end of the suspension belt is sewn on the upper outside of the base fabric on the side facing the occupant side. The airbag body is fixed to the storage container side of the airbag body, and when the airbag body is inflated, the upper portion of the airbag body is curved and inflated toward the occupant by the suspension belt. Sometimes the base fabric facing the occupant side is difficult to stretch in the vertical direction, and the base fabric facing the door side is easy to stretch in the vertical and horizontal directions. Can be suppressed as much as possible, and air The upper part of the bag body can be curved and bulged toward the occupant, improving the restraint of the occupant, making it easy to sew the suspension belt, easily adjust the length of the suspension belt, and easily change the design. I can do it.

According to the present invention, when the airbag body is inflated, the upper portion of the airbag body can be sufficiently curved and inflated toward the occupant, so that the upper portion of the airbag body is pushed by the occupant's head from the position of the broken door glass. There is no danger that the airbag body will protrude to the outside, and there is no danger that the airbag body will collide with the door and door glass, etc. The airbag body of the airbag device can be obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of a state in which an airbag main body of a vehicle side airbag device according to the present invention is applied to a vehicle seat and the airbag main body is inflated.

FIG. 2 is a side view showing a state in which the airbag body is inflated in a state where the airbag body of the vehicle side collision airbag apparatus according to the present invention is applied to a vehicle seat.

FIG. 3 is an explanatory plan view of an airbag body of the vehicle side airbag device according to the present invention.

FIG. 4 is an explanatory front view of a conventional airbag device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle seat 3 Seat back 3a Seat frame 5 Door 5a Door glass 11 Airbag device 12 Storage container 15 Airbag main body 15a Base fabric facing the occupant side 15b Base fabric facing the door side 16 Sewing portion 17 Gas generator 21 Suspension belt 21a Upper end 21b Lower end 23 Sewing part 25 Fixed part

Claims (2)

[Claims] A storage container provided on a side portion of a vehicle seat including a seat frame, a pad material attached to the seat frame, and a skin material covering the pad material, the storage container being attached to the seat frame; A gas generator stored and fixed in the storage container, and a side collision airbag for a vehicle fixed to the storage container so that gas ejected from the gas generator flows when the gas generator is operated. In the airbag body of the device, the airbag body is adapted to break and swell the sewn portion of the skin material, and the airbag body is provided outside of a plurality of base fabrics facing the occupant side and the door side, respectively. A peripheral belt is formed by sewing, a suspension belt is provided on the base fabric side on the side facing the occupant side, and the upper end of the suspension belt is sewn on the upper portion of the base fabric on the side facing the occupant side, The lower end is An airbag for a side collision of a vehicle, wherein the airbag is fixed to a storage container side of the main body, and an upper portion of the airbag main body is curved and inflated toward an occupant by the suspension belt when the airbag main body is inflated. The airbag body of the device. 2. A storage container provided on a side portion of a vehicle seat including a seat frame, a pad material attached to the seat frame, and a skin material covering the pad material, the container being attached to the seat frame. A gas generator stored and fixed in the storage container, and a side collision airbag for a vehicle fixed to the storage container so that gas ejected from the gas generator flows when the gas generator is operated. In the airbag body of the device, the airbag body is adapted to break and swell the sewn portion of the skin material, and the airbag body is provided outside of a plurality of base fabrics facing the occupant side and the door side, respectively. A suspension belt is provided outside the base fabric on the side facing the occupant side, and the upper end of the suspension belt is sewn on the upper outside of the base fabric on the side facing the occupant side. And the lower end A side collision air for a vehicle, wherein the airbag body is fixed to the storage container side of the bag body, and the upper portion of the airbag body is curved and bulged toward the occupant side by the suspension belt when the airbag body is bulged. The airbag body of the bag device.