KR20130095025A - A passenger airbag cushion - Google Patents

Abstract

Not only can it be flattened before it is inflated to automate the folding operation, but it is also provided with a passenger-side airbag cushion that expands in three dimensions when inflated.
To this end, the passenger seat airbag cushion according to an embodiment of the present invention, the first panel is formed flat, has a larger area than the first panel, the gas inflow so that the gas can flow into the interior of the first panel A hole is formed to include a second panel coupled to the first panel, and the second panel has a folded portion continuously folded from an upper side to a lower side so as to have the same cross-sectional area as the first panel, It is coupled flat with the first panel.

Description

Passenger seat airbag cushion {A PASSENGER AIRBAG CUSHION}

The present invention relates to a passenger seat airbag cushion, and more particularly, to a passenger seat airbag cushion made of two panels.

In general, a vehicle is equipped with an airbag device that is deployed between the structure of the vehicle and the passenger at the time of an accident, so as to prevent the passenger from directly hitting the structure of the vehicle and causing injury.

Such an airbag device includes a driver's seat airbag device mounted on a steering wheel disposed forward from the driver's seat, a passenger seat airbag device mounted on an upper side of the glove box disposed forward from the passenger seat, and mounted along the roof rail to the door and the passenger. Curtain airbag devices that are deployed in between, and side airbag devices that are mounted on the armrests of seats or console boxes or doors, and which are deployed to the side of passengers.

These airbag devices are operated by controlling an inflator, which is a gas generating means, by an airbag control unit (ACU) that is a controller according to a signal detected by a sensor that detects an accident of a vehicle. That is, when the gas generating medium inside the inflator is exploded by the control command of the ACU, the gas is introduced into the airbag cushion connected to the inflator, and the airbag cushion is inflated by the pressure of the introduced gas. The deployment will protect the passengers.

By the way, the airbag cushion is usually produced by sewing two panels to be developed at the development pressure to protect the general adult in consideration of the physical conditions of the general adult. However, in the passenger seat, not only an adult but also an infant or child or an adult may have a poor physical condition, so the passenger seat airbag cushion needs to be manufactured to protect them.

In fact, in North America, passengers in passenger seats are classified as infants under 1 year old, infants under 3 years old, children under 6 years old, and 5% women, all of whom are injured by excessive deployment pressure on the passenger seat airbag cushion. The law is in place to prevent.

Therefore, the passenger seat airbag cushion is designed to sew three panels in 3D to protect not only ordinary adults but also infants under 1 year old, children under 3 years old, children under 6 years old and 5% women. have.

However, the passenger seat airbag cushion manufactured in 3D as described above has a problem in that a folding operation, which is a folding process, is manually performed to be accommodated in the airbag housing. That is, the rest of the airbag cushions, which are not the passenger seat airbag cushion, are made of 2 panels and are made in 2D, so the folding process is automatically performed using a machine that can be folded, but the 3D passenger airbag cushion is manually folded. Has been doing.

Therefore, it consists of two panels so that the folding work can be done automatically, and a passenger seat that can protect not only ordinary adults but also infants under 1 year old, infants under 3 years old, children under 6 years old and 5% women. Airbag cushions are required.

The problem to be solved by the present invention is to provide a passenger seat airbag cushion consisting of two panels so as to automate the folding (folding) so that the two panels are flatly coupled to each other, three-dimensionally deployed when inflated.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the passenger seat airbag cushion according to an embodiment of the present invention, the first panel is formed flat, has a larger area than the first panel, the gas is introduced into the interior of the first panel A gas inlet hole is formed to include a second panel coupled to the first panel, and the second panel has a folded portion continuously folded from the upper side to the lower side so as to have the same cross-sectional area as the first panel. It is formed, and flatly coupled to the first panel.

The details of other embodiments are included in the detailed description and drawings.

The passenger seat airbag cushion according to the present invention has an effect of automating a folding operation because it consists of two panels and is flatly coupled to each other through a folding part.

In addition, since the airbag cushion is three-dimensionally deployed while the folding portion is unfolded, there is an effect that the passenger can be injured by the deployment pressure of the airbag cushion.

In addition, since the upper and lower sides of the two panels are pulled while the folding portions are unfolded, the upper and lower sides of the airbag cushion are recessed, and the grain portions are also formed.

In addition, since the neck is formed in the airbag cushion, when the passenger is loaded on the airbag cushion, the airbag cushion is not swung up and down, there is an effect that can prevent the neck injury of the passenger.

In addition, since the vent hole through which the gas is discharged when the air bag cushion is inflated is disposed on the side surface of the air bag cushion, the vent hole is not blocked by the instrument panel.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a plan view of a passenger seat airbag cushion according to an embodiment of the present invention,
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1;
3 is a front view showing an inflated passenger seat airbag cushion according to an embodiment of the present invention;
4 is a side view showing an inflated passenger seat airbag cushion according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for explaining a passenger seat airbag cushion according to an embodiment of the present invention.

1 is a plan view of a passenger seat airbag cushion according to an embodiment of the present invention, Figure 2 is a cross-sectional view taken along line AA in Figure 1, Figure 3 is a front view showing an inflated passenger seat airbag cushion according to an embodiment of the present invention 4 is a side view showing an inflated passenger seat airbag cushion according to an embodiment of the present invention.

1 to 4, the passenger seat airbag cushion 100 according to the embodiment of the present invention is coupled to the first panel 10 and the first panel 10, which are in contact with the passenger sitting in the passenger seat when inflated. And a second panel 20 in which a gas inflow hole 25 is formed to allow gas to flow into the first panel 10.

The first panel 10 and the second panel 20 are coupled to each other by sewing 40 around the periphery of the first panel 10 and the second panel 20 to form a chamber 30 which is a space in which the gas is stored.

An inflator (not shown), which is a gas generating means, is connected to the gas inflow hole 25 formed in the second panel 20 so that the gas generated from the inflator is introduced into the chamber 30 through the gas inflow hole 25. When introduced, the passenger seat airbag cushion 100 is inflated and deployed by the pressure of the gas introduced into the chamber 30 to protect the passenger.

In addition, after the airbag cushion 100 is inflated to a predetermined size by the gas pressure introduced into the chamber 30, a vent hole 22 through which the gas is discharged is formed in the second panel 20. The airbag cushion 100 discharges the gas introduced into the first panel 10 and the second panel 20 through the vent hole 22, so that the passenger loaded on the first panel 10 may receive the airbag cushion 100. To prevent injuries caused by excessive deployment pressure.

Meanwhile, the first panel 10 is formed flat, and the second panel 20 has a larger area than the first panel 10. Therefore, after the second panel 20 is folded and made flat so that the second panel 20 can have the same cross-sectional area as the first panel 10, the circumference of the first panel 10 and the second panel 20 is flat. By sewing 40, a flat passenger seat airbag cushion 100 is completed.

That is, the second panel 20 is continuously folded from the upper side to the lower side so that the second panel 20 can have the same cross-sectional area as the first panel 10, and then the foldable part 26 is formed. By sewing 40 the periphery of 10 and the second panel 20 together, both the first panel 10 and the second panel 20 are joined in a flat state.

Therefore, since the first panel 10 and the second panel 20 are flatly coupled to complete the passenger seat airbag cushion 100 having 2D, the folding work of the passenger seat airbag cushion 100 can be automated.

The technical gist of the present invention is to make the passenger seat airbag cushion 100, which was made in 3D and made of 3D panels in 2D, to be made in 2D to automate the folding process. When the passenger seat airbag cushion 100 is deployed through the folding unit 26, the folding unit 26 will be described in detail.

When the upper and lower ends of the fold 26 are sewn 40 around the first panel 10 and the second panel 20, the upper and lower ends of the folded part 26 are sewn together and coupled to the circumference of the first panel 10.

Therefore, when the gas is introduced into the chamber 30 through the gas inlet hole 25, the airbag cushion 100 is expanded while the folded portion 26 is expanded by the gas pressure to expand in three dimensions. The upper and lower sides of the first panel 10 and the second panel 20 are pulled by the folded portion 26 that is unfolded, so that the airbag cushion 100 is recessed in the upper and lower sides thereof, as shown in FIG. G1 and G2) are formed respectively.

When the front passenger's airbag cushion 100 is deployed, the front passenger's airbag cushion ( Excessive deployment pressure of 100 can prevent passengers from injuring themselves.

Folded portion 26 is folded to the left and right width (T) constant from the upper side to the lower side. As shown in FIG. 4, the airbag cushion 100 is deployed between an upper side of an instrument panel 1 of a vehicle and a windshield glass 3 when deployed. That is, the first panel 10 and the second panel 20 are expanded to be deployed between the upper side of the instrument panel 1 and the windshield glass 3, depending on the vehicle type, the upper side and the wind of the instrument panel 1 The angle α between the shield glasses 3 is different. Therefore, the left and right widths T of the folded portion 26 may be designed in various widths according to the vehicle type in proportion to the angle α between the upper side of the instrument panel 1 and the windshield glass 3.

In addition, the distance between the instrument panel 1 and the passenger seat may vary depending on the vehicle model. Therefore, the left and right widths T of the folded portion 26 may be designed in various widths according to the vehicle model in proportion to the distance between the instrument panel 1 and the passenger seat. That is, in consideration of the distance between the airbag cushion 100 and the passenger, the left and right widths T of the foldable part 26 are considered to have a depth to protect the passenger sitting in the passenger seat when the airbag cushion 100 is fully inflated. It can be designed in various widths.

In addition, the position of the gas inlet hole 25 is also an important factor for determining the deployment angle of the airbag cushion 100. In the present embodiment, the gas inflow hole 25 is formed to be eccentrically downward in the second panel 20. The position of the gas inlet hole 25 is adjusted according to the angle α between the upper side of the instrument panel 1 and the windshield glass 3 so that the airbag cushion 100 has the upper side of the instrument panel 1 and the windshield glass. (3) Do not rock up and down when deployed in between.

The folded part 26 may include a first folded part 26a disposed at one side of the gas inlet hole 25 and a second folded part disposed at the other side of the gas inlet hole 25. 26b).

The first folded portion 26a and the second folded portion 26b are spaced apart from each other from the center of the gas inflow hole 25 so as to face each other.

The folds 26 are folded and stacked a plurality of times in the same pattern. In the present exemplary embodiment, the folded part 26 is illustrated as being folded three times (N1, N2, N3), but the number of stacked parts is not limited thereto. That is, since the distance between the instrument panel 1 and the passenger seat may vary according to the vehicle model, the distance between the instrument panel 1 and the passenger seat may be increased in various numbers depending on the vehicle model. In other words, as with the design of the left and right widths T of the folds 26, the airbag cushion 100 has a depth to protect the passengers sitting in the passenger seat when the airbag cushion 100 is fully inflated. The number can be designed in various numbers in consideration of the distance between the airbag cushion 100 and the passenger.

In addition, the passenger seat airbag cushion 100 according to the embodiment of the present invention, the folded portion 26 by the gas introduced into the first panel 10 and the second panel 20 through the gas inlet hole 25. When the first panel 10 and the second panel 20 are inflated to expand, the neck 28 recessed inwardly is formed below the second panel 20.

The neck 28 is formed narrower than the portion where the passenger is loaded, and is disposed along the skin surface of the instrument panel 1 when the airbag cushion 100 is fully inflated, so that the airbag cushion 100 is loaded up and down by the passenger. Since it does not run, it is possible to prevent the injury of the passenger.

In addition, the passenger seat airbag cushion 100 according to the embodiment of the present invention, the folded portion 26 by the gas introduced into the first panel 10 and the second panel 20 through the gas inlet hole 25. When the first panel 10 and the second panel 20 are inflated, the vent hole 22 is disposed on the side of the airbag cushion 100 so that the vent hole 22 is opened by the instrument panel 1. Do not block.

Referring to the operation of the passenger seat airbag cushion according to an embodiment of the present invention configured as described above are as follows.

First, the airbag cushion 100 is folded so that the second panel 20 may have the same cross-sectional area as the first panel 10 so that the folded portion 26 is formed, and then the circumference of the first panel 10 is combined. It becomes a flat state. As such, the airbag cushion 100 in a flat state is automatically folded through a machine and stored in a housing (not shown), and mounted on a vehicle body.

When an accident of a vehicle occurs and gas generated in an inflator (not shown) flows into the chamber 30 through the gas inlet hole 25, the first panel 10 and the second panel 20 are affected by the pressure of the gas. ) Expands and the airbag cushion 100 expands in three dimensions as the fold 26 is unfolded by the pressure of the gas flowing into the chamber 30, and the first panel 10 is in contact with the passenger. This protects the passengers with the proper pressure.

On the other hand, when the folding part 26 is unfolded, the upper and lower sides of the first panel 10 and the second panel 20 are pulled, which causes the upper and lower sides of the passenger seat airbag cushion 100 to be recessed and grooves G1 and G2. Are each formed. Thus, when the passenger seat airbag cushion 100 is deployed, the passenger seat airbag enters the grooves G1 and G2 into the heads of the infants 1 year old or younger, 3 years old or younger, 6 years old or younger, or 5% female. Excessive deployment pressure of the cushion 100 can prevent passengers from being injured.

As described above, the passenger seat airbag cushion 100 according to the present invention is composed of two panels 10 and 20 and is flatly coupled to each other through the folding part 26, thereby automating a folding operation.

In addition, since the airbag cushion 100 is three-dimensionally deployed while the fold 26 is unfolded, it is possible to prevent the passenger from being injured by the deployment pressure of the airbag cushion 100.

In addition, since the upper and lower sides of the two panels 10 and 20 are pulled while the folding portion 26 is unfolded, the upper and lower sides of the airbag cushion 100 are recessed to form the grooves G1 and G2, respectively, The head of an adult with poor physical condition is loaded with (G1) to protect with low developmental pressure, and the head of an infant or child is loaded with groove (G2) to protect with low developmental pressure.

In addition, since the neck 28 is formed in the airbag cushion 100, when the passenger is loaded on the airbag cushion 100, the airbag cushion 100 does not sway up and down, thereby preventing injury of the passenger. .

In addition, since the vent hole 22 through which the gas is discharged when the air bag cushion 100 is inflated is disposed on the side of the air bag cushion 100, the vent hole 22 is not blocked by the instrument panel 1.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

1: instrument panel 3: windshield glass
10: first panel 20: second panel
22: vent hole 25: gas inlet hole
26: folded portion 26a: first folded portion
26b: second fold 28: neck
30: chamber 40: sewing
100: passenger seat airbag cushion G1, G2: groove

Claims (12)

A first panel formed flat; And
And a second panel having a larger area than the first panel and having a gas inflow hole formed therein to allow gas to flow into the first panel and coupled to the first panel.
The second panel is a passenger seat airbag cushion having a folded portion continuously folded from the upper side to the lower side so as to have the same cross-sectional area as the first panel, and flatly coupled to the first panel. The method according to claim 1,
The first panel and the second panel are coupled to each other around the circumference,
The folding seat is a passenger seat airbag cushion, the upper and lower ends are respectively coupled to the circumference of the first panel. The method according to claim 1,
The folded portion,
A first folded part disposed on one side of the gas inlet hole;
A passenger seat airbag cushion comprising a second foldable part disposed on the other side with respect to the center of the gas inflow hole. The method according to claim 3,
The first foldable part and the second foldable part are passenger seat airbag cushions spaced apart from each other from the center of the gas inlet hole. The method according to claim 1,
The fold portion is a passenger seat airbag cushion that is folded in a constant width from the upper side to the lower side. The method according to claim 1,
A passenger seat airbag cushion in which the folds are folded and stacked a plurality of times in the same pattern. The method according to claim 1,
When the first panel and the second panel are expanded by expanding the folding part by the gas introduced into the first panel and the second panel through the gas inlet hole, upper and lower sides of the first panel and the second panel are A passenger seat airbag cushion, which is pulled by the fold and recessed to form grooves, respectively. The method according to claim 1,
When the fold is expanded by the gas introduced into the first panel and the second panel through the gas inlet hole, and the first panel and the second panel are expanded, a neck part which is recessed inward in the lower side of the second panel Passenger seat airbag cushion formed. The method according to claim 1,
The gas inlet hole is a passenger seat airbag cushion eccentrically formed in the second panel. The method according to claim 1,
And a vent hole through which the gas introduced into the first panel and the second panel is discharged. The method of claim 10,
When the fold is expanded by the gas introduced into the first panel and the second panel through the gas inlet hole, and the first panel and the second panel are expanded, the vent hole is disposed on the side of the passenger seat airbag cushion. Passenger seat airbag cushion. The method according to claim 1,
When the first panel and the second panel are inflated by the folding portion spread by the gas introduced into the first panel and the second panel through the gas inlet hole, the first panel is in contact with a passenger. .

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