KR20120078897A

KR20120078897A - Air-bag

Info

Publication number: KR20120078897A
Application number: KR1020110000195A
Authority: KR
Inventors: 김재현
Original assignee: 현대모비스 주식회사
Priority date: 2011-01-03
Filing date: 2011-01-03
Publication date: 2012-07-11

Abstract

The present invention is the main chamber cushion is expanded by the gas generated in the inflator, the flow chamber is formed in the front area that is deployed toward the passenger; A hard chamber cushion connected to the front region of the main chamber cushion and deployed to the passenger by receiving gas through the flow hole; The present invention relates to an airbag disposed in the hard chamber cushion and having a plurality of holes formed therein and including a passage hood through which the gas flows in only one direction.

Description

Airbag {Air-bag}

The present invention relates to an airbag, and more particularly, to an airbag having a two-chamber cushion structure for improving a passenger's neck injury.

In general, when a collision accident occurs while driving a vehicle, airbags are installed to prevent the upper body of the driver and passenger from moving forward by the inertia, which collides with the steering wheel, the dashboard, and the windshield glass to increase the degree of injury.

The airbag is installed to protect the passenger's face and chest during a collision of the vehicle, and the airbag is not optimally protected by the airbag, and in some cases, the airbag is injured by the airbag.

Conventional airbag device is a form consisting of sewing of the side panel and the main panel without a separate removable device inside the cushion.

Therefore, when the passenger touches the airbag due to the collision of the vehicle, the internal pressure of the airbag is small so that the head part of the airbag may not enter the airbag. As a result, the neck of the passenger is bent and there is a problem of neck injury.

The problem to be solved by the present invention is to provide an airbag for improving the neck injury of the passenger by applying a two-chamber cushion.

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

In order to achieve the above object, the airbag according to an embodiment of the present invention, the main chamber cushion is inflated by the gas generated in the inflator, the flow hole is formed in the front region that is deployed toward the passenger; A hard chamber cushion connected to the front region of the main chamber cushion and deployed to the passenger by receiving gas through the flow hole; A plurality of holes are formed in the hard chamber cushion and include a passage hood for flowing the gas in only one direction.

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

According to the airbag of the present invention, there are one or more of the following effects.

First, the airbag to which the cushion chamber is applied has an advantage of improving the passenger's injury caused by the airbag in the event of a vehicle crash.

Second, airbags with shock-to-chamber cushions have the advantage of being able to pass tougher North American safety standards.

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 perspective view of an airbag according to an embodiment of the present invention.
2 is a plan view of a passing hood of an airbag according to an embodiment of the present invention.
3 is a side cross-sectional view of a passing hood of an airbag according to an embodiment of the present invention.
4 is a view showing the operating state of the airbag according to an embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as 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 scope of the invention to those skilled in the art. To fully disclose 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 describing an airbag according to embodiments of the present invention.

1 is a perspective view of an airbag according to an embodiment of the present invention, FIG. 2 is a plan view of a passing hood of an airbag according to an embodiment of the present invention, and FIG. 3 is a passing hood of an airbag according to an embodiment of the present invention. Figure 4 is a side cross-sectional view of, Figure 4 is a view showing the operating state of the airbag according to an embodiment of the present invention.

1 to 4, an airbag according to an embodiment of the present invention includes a main chamber cushion 100, a hard chamber cushion 200, and a passage hood 300.

The main chamber cushion 100 is connected to the airbag housing 400, and the main chamber cushion 100 is inflated by the high temperature / high pressure gas generated in the inflator 500 connected to the lower side of the airbag housing 400.

The main chamber cushion 100 includes a front region 110 that extends toward the passenger P, both regions forming both sides, and a rear region connected to the airbag housing 400.

The main chamber cushion 100 forms a gas inlet through which the high temperature / high pressure gas generated from the inflator 500 flows into the rear region.

Vent holes 120 for discharging the gas inside the main chamber cushion 100 are formed after the main chamber cushion 100 is filled in both regions.

In the front region 110, a flow hole 111 through which gas inside the main chamber cushion 100 flows is formed.

In addition, the hard chamber cushion 200 and the passage hood 300 are connected to the front region 110 of the main chamber cushion 100, and the hard chamber and the passage hood 300 described above correspond to the flow hole 111. Is placed.

Therefore, the gas flows through the flow hole 111 to the passage hood 300, and the gas flows to the hard chamber cushion 200 through the passage hole 310 formed in the passage hood 300 to be described later. As a result, the hard chamber cushion 200 is inflated.

In this embodiment, the flow hole 111 is formed in the middle region of the front region 110, and thus the hard chamber cushion 200 and the passage hood 300 are also disposed in the middle region of the front region 110. Therefore, the hard chamber cushion 200 is deployed to correspond to the upper body of the passenger (P).

In addition, the lower region of the front region 110 is developed to correspond to the lower body of the passenger (P). Therefore, the main chamber cushion 100 is made of a material that is soft to the contact with the lower body of the passenger P during deployment, and can withstand high temperature / high pressure gas. Preferably it is made of a fabric (fabric) material.

As described above, the hard chamber cushion 200 is disposed in the middle region of the front region 110 and connected to the main chamber cushion 100.

The hard chamber cushion 200 is supplied toward the passenger P to receive gas through the flow hole 111. Preferably it is deployed toward the upper body of the passenger (P).

The hard chamber cushion 200 has a passage hood 300 disposed therein, and gas flows in various directions inside the hard chamber cushion 200 by a plurality of passage holes 310 formed in the passage hood 300. . In this embodiment, gas flows left and right.

The hard chamber cushion 200 is made of a material that is soft to the upper body of the passenger P during deployment and can withstand high temperature / high pressure gas. Preferably it is made of a fabric (fabric) material.

The passage hood 300 is disposed inside the hard chamber cushion 200, and a plurality of passage holes 310 are formed to flow the gas supplied through the flow hole 111 in only one direction. In this embodiment, the passage holes 310 of the passage hood 300 are formed in a pair.

The passage hood 300 is disposed to correspond to the flow hole 111, and is preferably disposed in front of the flow hole 111.

In addition, the passage hood 300 has a passage hole 310 is formed to correspond to the outer region of the flow hole 111. Preferably it is formed to correspond to both sides of the flow hole (111).

The passage hood 300 covers the flow hole 111 when the gas inside the hard chamber cushion 200 flows in the other direction opposite to the above-described one direction, so that the gas flows through the flow hole 111 to the main chamber cushion. Flow to 100 is prevented. Accordingly, the passage hood 300 flows the gas only in one direction. Preferably the gas flows only to the front side.

In addition, when the passage hood 300 covers the flow hole 111, the passage hole 310 is in close contact with the outer region of the flow hole 111. Therefore, when the gas inside the hard chamber cushion 200 flows in the other direction described above, the gas is prevented from flowing to the main chamber cushion 100 through the passage hole 310.

The airbag housing 400 forms a space in which the hard chamber cushion 200 and the main chamber cushion 100 are accommodated, and the inflator 500 is connected to a lower side thereof.

The inflator 500 is connected to the lower side of the airbag housing 400 and generates high temperature / high pressure gas in a vehicle crash.

Referring to the operation of the airbag according to the present invention configured as described above are as follows.

First, a gas of high temperature / high pressure is generated in the inflator 500 during a vehicle crash. The above-described high temperature / high pressure gas flows to the main chamber cushion 100 through a gas inlet formed in the rear region of the main chamber cushion 100. The main chamber cushion 100 is deployed toward the passenger (P).

Gas in the main chamber cushion 100 flows to the passage hood 300 disposed inside the hard chamber cushion 200 through the flow hole 111 formed in the front region 110 of the main chamber cushion 100.

Gas flowing into the passage hood 300 flows into the hard chamber cushion 200 through passage holes 310 at both sides of the passage hood 300.

Accordingly, the hard chamber cushion 200 is deployed toward the passenger P and supports the upper body of the passenger P.

When the hard chamber cushion 200 supports the upper body of the passenger P, pressure is applied to the rear, and the passage hood 300 is also pressured to the rear.

Accordingly, the passage hood 300 covers the flow hole 111, so that the gas in the hard chamber cushion 200 does not flow into the main chamber cushion 100 through the flow hole 111.

As a result, the hard chamber cushion 200 is maintained in a filled state. Therefore, the upper body of the passenger (P) is sufficiently supported to prevent the neck of the passenger (P).

Although the above has been illustrated and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, but in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

100: main chamber cushion 110: front region
111: flow hole 200: hard chamber cushion
300: passage hood 310: passage hall
400: airbag housing 500: inflator
P: Passenger

Claims

A main chamber cushion inflated by the gas generated in the inflator and having a flow hole formed in the front region which is deployed toward the passenger;
A hard chamber cushion connected to the front region of the main chamber cushion and deployed to the passenger by receiving gas through the flow hole;
An airbag disposed in the hard chamber cushion and having a plurality of holes formed therein, and including a passage hood for flowing the gas in only one direction.

The method of claim 1,
The passage hood is disposed to correspond to the flow hole.

The method of claim 1,
And the passage hood covers the flow hole when the gas flows in another direction opposite to the one direction.

The method of claim 1,
The flow hole is an air bag formed in the middle region of the front region.

The method of claim 1,
The passage hole is formed to correspond to the outer region of the flow hole.