KR20140049852A

KR20140049852A - Airbag cushion

Info

Publication number: KR20140049852A
Application number: KR1020120116183A
Authority: KR
Inventors: 김창수
Original assignee: 현대모비스 주식회사
Priority date: 2012-10-18
Filing date: 2012-10-18
Publication date: 2014-04-28

Abstract

The present invention relates to an airbag cushion preventing the neck injury to a passenger. According to the present invention, the airbag cushion, which is expanded and developed if gas is introduced thereinto in such a manner as to protrude forwardly toward the passenger, includes a front surface portion formed on the front side thereof in such a manner as to mount the passenger′s head thereon, wherein the front surface portion includes a first surface and a second surface formed on both sides thereof, wherein the second surface is extended from the first surface and has a shorter length than the first surface. The first surface has one end formed on one side of the front surface portion and is depressed backwardly as it goes from one side of the airbag cushion toward the other side thereof upon the expansion of the airbag cushion, and the second surface has one end formed on the other side of the front surface portion and is depressed backwardly as it goes from the other side of the airbag cushion toward one side thereof upon the expansion of the airbag cushion.

Description

Airbag Cushion {AIRBAG CUSHION}

The present invention relates to an airbag cushion, and more particularly, to an airbag cushion that expands and deploys when gas is introduced to protect an occupant.

In general, automobiles are equipped with airbag cushions that are inflated and deployed by gas pressure during an accident to protect the occupants with cushioning force.

The airbag cushions include a driver airbag cushion mounted to a steering wheel to protect the driver in a frontal crash, a passenger airbag cushion mounted to an upper side of the glovebox to protect a passenger in a frontal crash, and a side collision or rollover. A curtain airbag cushion that is mounted long back and forth along the roof rail to protect the head of the passenger.

On the other hand, the airbag cushions are inflated and deployed by the high-pressure gas flowing from the gas generator in a car accident, if the airbag cushions do not maintain the proper pressure, the occupant is injured by excessive or insufficient pressure of the airbag cushions There is a possibility to wear.

In particular, the passenger seat is seated as well as the general adult, women, children or infants with poor physical conditions compared to the general adult, and the passenger seat airbag cushion should maintain the deployment pressure to protect them all.

Practically, in North America, the pressure of the passenger seat airbag cushion is evaluated to injure the general adult, women, children, and infants, so that only the passenger seat airbag cushion having passed the above evaluation can be mounted on the vehicle. .

For example, as one of the evaluations conducted in North America, the passenger is loaded on the passenger seat airbag cushion that is deployed to assess whether the passenger is injured, and the passenger's head is deployed as a cause of the passenger's injury. At the time of loading on the passenger seat airbag cushion, when the deployment pressure of the passenger seat airbag cushion is insufficient or excessive, the head of the passenger is shaken back and forth.

The problem to be solved by the present invention is to provide an airbag cushion for preventing the injury of the occupants.

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 airbag cushion according to an embodiment of the present invention is expanded and deployed when gas is introduced, the airbag cushion is projected forward toward the occupant, the airbag cushion is formed in front of the airbag cushion And a front portion on which the occupant's head rests, wherein the front portion includes a first surface between the two sides, and a second surface extending from the first surface and having a length shorter than the first surface. One end is disposed on one side of the front portion, and when the airbag cushion is inflated, it is recessed toward the other side from one side of the airbag cushion toward the other side, and the second surface has one end disposed on the other side of the front portion, When the airbag cushion is inflated, the airbag cushion is recessed toward the other side from the other side of the airbag cushion.

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

In the airbag cushion according to the present invention, the front part on which the occupant's head is seated is formed as a first surface and a second surface, and because the lengths of the first and second surfaces are different from each other, the expansion of the airbag cushion is performed. Since the head of the occupant seated on the front part is rotated to one side, the head of the occupant is prevented from shaking back and forth, thereby preventing the neck injury of the occupant.

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 showing an inflated state of an airbag cushion according to an embodiment of the present invention;
2 is a plan view seen from A of FIG.
3 is an exploded view of an 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 the specification.

Hereinafter, an airbag cushion according to an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view showing an inflated state of an airbag cushion according to an embodiment of the present invention, FIG. 2 is a plan view seen from A of FIG. 1, and FIG. 3 is an exploded view of the airbag cushion according to an embodiment of the present invention.

1 to 3, the airbag cushion 100 according to an embodiment of the present invention is expanded and deployed when gas is introduced to protect the occupant with a cushion force.

The airbag cushion 100 may be a passenger seat airbag cushion that protects a passenger or a driver airbag cushion that protects a driver.

The airbag cushion 100 is mounted on the vehicle in a folded state, and when gas is generated and introduced from a gas generator (not shown), the airbag cushion 100 is expanded while being protruded forward toward the occupant while expanding by the introduced gas. Will be protected by a cushion force.

The airbag cushion 100 is connected to the gas generator at a rear portion thereof to form a gas inlet 15 through which gas is introduced. The airbag cushion 100 is inflated by the gas flowing from the gas generator and protrudes forward, so that the occupant's head may be seated on the front portion 12a facing the occupant.

The front portion 12a is spaced apart from the gas inlet portion 15 formed at the rear portion of the airbag cushion 100 in front, and is formed in front of the airbag cushion 100.

As shown in FIG. 2, the front portion 12a is provided with a first surface 12b and a second surface 12c between both sides. The first surface 12b is formed on the right side longer than the second surface 12c and is disposed on the right side, and the second surface 12c extends from the first surface 12b so that the left and right lengths are the first surface 12b. It is formed shorter and is disposed on the left side.

One end of the first surface 12b is disposed on one side of the front portion 12a, and is recessed toward the other side from one side of the airbag cushion 100 toward the other side when the airbag cushion 100 is inflated.

In addition, one end of the second surface 12c is disposed on the other side of the front part 12a, and is recessed toward the one side from the other side of the airbag cushion 100 toward one side during the expansion of the airbag cushion 100.

However, the first surface 12b has a longer left and right length than the second surface 12c, and the second surface 12c has a shorter left and right length than the first surface 12b. 12a is recessed asymmetrically toward the occupant upon inflation of the airbag cushion 100. Accordingly, the occupant's head 1 seated on the front portion 12a is rotated in the direction of arrow B after seating on the first surface 12b, as shown in FIG. After 1) is seated on the airbag cushion 100, it is possible to prevent the neck injury by shaking back and forth.

On the other hand, the airbag cushion 100 is produced by combining the three panels by sewing. That is, the airbag cushion 100 includes a main panel 12 forming a front portion 12 on which the passenger's head 1 is seated, and side panels 14 coupled to both sides of the main panel 12, respectively. It includes.

The side panel 14 is formed with a vent hole 14a through which the gas introduced into the airbag cushion 100 is discharged. The airbag cushion 100 discharges the gas introduced from the gas generator through the vent hole 14a to maintain an appropriate pressure to protect the occupant.

The main panel 12 is formed long up and down when in the unfolded state as shown in Figure 3, both ends are stitched together to be annular as shown in Figures 1 and 2, both side panels 14 Are formed in the same shape with each other are sewn and coupled to both sides of the annular main panel 12, respectively.

When the main panel 12 is in an unfolded state before being coupled to the side panel 14 as shown in FIG. 3, a gas inlet 15 is formed at a portion that forms the rear portion of the airbag cushion 100. The slot 12 is formed in the portion 12a corresponding to the second surface 12c.

The slot 13 has both sides overlapped with each other so as to be stitched together, so that the first face 12b and the second face 12c can be formed.

Referring to the operation of the airbag cushion 100 according to an embodiment of the present invention configured as described above are as follows.

First, when an automobile accident occurs, when gas is generated from the gas generator coupled to the gas inlet 15 of the airbag cushion 100 and flows into the airbag cushion 100, the airbag cushion 100 is inflated and deployed. The occupant's head 1 is loaded and seated on the front portion 12a of the airbag cushion 100.

However, since the front part 12a is formed of a first surface 12b and a second surface 12c having different left and right lengths and is formed of a right and left asymmetric structure, the head 1 of the occupant 1 has a long left and right length first. It is seated on the surface 12b and then rotated to one side.

As described above, in the airbag cushion 100 according to the present invention, the front portion 12a on which the passenger's head 1 is seated is formed of the first surface 12b and the second surface 12c, and the first surface. Since the lengths of the 12b and the second surface 12c are asymmetrically different from each other, the head 1 of the occupant seated on the front portion 12a is rotated to one side when the airbag cushion 100 is inflated. In addition, the head 1 of the occupant may be prevented from shaking back and forth by the repulsive force of the airbag cushion 100, thereby preventing the injury of the occupant.

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.

12: main panel 12a: front panel
12b: first side 12c: second side
13: slot 14: side panel

Claims

In the airbag cushion that expands and expands when gas enters, and projects forward toward the occupant,
The airbag cushion includes a front portion formed in front of the airbag cushion and seating the passenger's head,
The front portion includes a first surface between the two sides and a second surface extending from the first surface and having a length shorter than the first surface,
The first surface, one end is disposed on one side of the front portion, when the airbag cushion is inflated to the rear toward the other side from one side of the airbag cushion,
The second surface, one end is disposed on the other side of the front portion, the airbag cushion when the airbag cushion is inflated toward the rear toward the other side from the other side of the airbag cushion when inflating.

The method according to claim 1,
The occupant's head seated on the front part is seated on the first surface and then rotated to one side.

The method according to claim 1,
The airbag cushion
A main panel having the front portion formed thereon;
An airbag cushion comprising side panels respectively coupled to both sides of the main panel.

The method of claim 3,
When the main panel is in an unfolded state before being coupled with the side panel, a slot is formed in a portion corresponding to the second surface so that the first surface and the second surface can be formed, and the slots are opposite to each other. Airbag cushions that are stacked together.