KR20140042496A - Air-bag apparatus for vehicles - Google Patents

Air-bag apparatus for vehicles Download PDF

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Publication number
KR20140042496A
KR20140042496A KR1020120109334A KR20120109334A KR20140042496A KR 20140042496 A KR20140042496 A KR 20140042496A KR 1020120109334 A KR1020120109334 A KR 1020120109334A KR 20120109334 A KR20120109334 A KR 20120109334A KR 20140042496 A KR20140042496 A KR 20140042496A
Authority
KR
South Korea
Prior art keywords
vent hole
airbag
vehicle
airbag cushion
passenger
Prior art date
Application number
KR1020120109334A
Other languages
Korean (ko)
Inventor
강정훈
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020120109334A priority Critical patent/KR20140042496A/en
Publication of KR20140042496A publication Critical patent/KR20140042496A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/239—Inflatable members characterised by their venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/239—Inflatable members characterised by their venting means
    • B60R2021/2395—Inflatable members characterised by their venting means comprising means to control the venting

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

The present invention relates to an airbag for a vehicle. The airbag includes an air bag cushion which is inflated forward toward a passenger when gas is introduced, vent holes which are respectively formed on both sides of the air bag cushion for discharging gas, vent hole covers which are arranged to correspond to the vent holes for covering the vent holes, and an opening member which is coupled to the vent hole covers on both ends thereof for opening the vent hole covers by pulling the vent hole covers. The airbag reduces damage to a passenger′s head.

Description

[0001] Air-bag apparatus for vehicles [0002]

The present invention relates to a vehicle airbag apparatus, and more particularly to a vehicle airbag apparatus for reducing the injury to the head of the passenger.

In general, an airbag device of a vehicle is installed in front of a driver's seat or front passenger's seat and is installed for the purpose of protecting the life and the body of a driver and a passenger while the airbag cushion is momentarily inflated during a collision of the vehicle.

Vehicle airbags are divided into driver airbags mounted on the steering wheel to protect the driver of the driver's seat and passenger airbags mounted on the instrument panel in the front of the passenger's seat to protect passengers of the passenger seat. The driver's airbag is a mandatory feature and the passenger seat airbag is an option. However, in order to protect passengers, vehicles that use a passenger seat airbag as an essential specification are increasing.

The deployment structure of the passenger seat airbag device is a structure in which the airbag cushion is in full bloom and the passenger's head, neck and chest are sequentially contacted before the passenger's head and chest contact each other. In addition, the passenger seat airbag device is generally a structure of one chamber to adjust the internal pressure through the vent hole of the airbag cushion when the passenger contacts. In addition, in order to secure the stability of the shape of the deployment, the upper and lower tethers are placed in front of the restraint distance to the passengers. In other words, the tether is an auxiliary means for maintaining the shape of the airbag cushion in full bloom.

The problem to be solved by the present invention is to provide a vehicle airbag device for reducing the injury to the head of the passenger.

Still another object of the present invention is to provide a vehicle airbag device which simplifies the structure and reduces the cost.

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, a vehicle airbag apparatus according to an embodiment of the present invention, the airbag cushion which is deployed forward toward the passenger when gas is introduced; Vent holes respectively formed at both side surfaces of the airbag cushion to discharge the gas; A vent hole cover disposed to correspond to the vent hole and covering the vent hole; Both ends are coupled to the vent hole cover, respectively, and include an opening member which opens the vent hole by pulling the vent hole cover.

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

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

First, since the vent hole is opened by the force of the passenger's head loaded on the airbag cushion, the head injury value of the passenger is reduced.

Second, there is an advantage that the manufacturing process of the airbag device for a vehicle is simplified.

Third, the cost and weight are reduced by eliminating parts.

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 a vehicle airbag apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a portion A of FIG. 1.
3 is a cross-sectional view of the portion BB of FIG. 2.
Figure 4 is a partial perspective view schematically showing the operation of the vehicle airbag apparatus according to an embodiment of the present invention.
5 is a cross-sectional view schematically showing the operation of the vehicle airbag apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with 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 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 the specification.

Hereinafter, the present invention will be described with reference to the drawings for describing the vehicle airbag apparatus 10 according to embodiments of the present invention.

1 is a perspective view of a vehicle airbag apparatus according to an embodiment of the present invention, Figure 2 is a view showing an enlarged view of the portion A of Figure 1, Figure 3 is a view showing a cross-sectional view of the portion B-B of FIG.

1 to 3, the vehicle airbag device 10 is mounted on the passenger seat or driver's seat to protect the passenger (P) safely in the event of a vehicle crash. The vehicle airbag apparatus 10 includes an airbag cushion 100, a vent hole 200, a vent hole cover 300, an opening member 400, and a guide line 500.

The airbag cushion 100 is deployed forward toward the passenger P when the high temperature and high pressure gas generated in the inflator is introduced. Therefore, the airbag cushion 100 may serve to protect the passenger P by preventing the passenger P from colliding with the instrument panel, steering wheel, etc. in the vehicle when the airbag cushion 100 is deployed toward the passenger P.

Airbag cushion 100 is preferably made of a fabric (fabric) material to be in contact with the passenger (P). In addition, the airbag cushion 100 is folded a plurality of times and stored in the airbag housing.

Vent holes 200 through which gas is discharged are formed on both side surfaces of the airbag cushion 100, and the head, neck, and chest of the passenger P are seated on the front surface of the airbag cushion 100. An inflator is connected to the rear surface of the airbag cushion 100.

A tether may be provided inside the airbag cushion 100, and the tether is for securing stability of the deployment shape of the airbag cushion 100, and the airbag cushion 100 provides a restraint distance to the passenger P when the airbag cushion 100 is deployed. Regulate. That is, the tether is an auxiliary means for maintaining the shape of the airbag cushion 100 at full bloom.

The inflator is connected with the rear surface of the airbag cushion 100. In addition, the inflator receives a control signal from the air-bag control unit (ACU) that is a control device during a vehicle crash, and generates a gas by exploding the gas generating medium contained therein. Therefore, the inflator generates high-temperature and high-pressure gas during the collision of the vehicle and injects it into the airbag cushion 100, and generates the high-pressure gas so that the airbag cushion 100 can fully bloom toward the passenger P. Do.

The vent hole 200 discharges gas filled in the interior of the airbag cushion 100 to prevent the passenger P from being injured by excessive initial deployment pressure of the airbag cushion 100.

The vent holes 200 are formed at both sides of the airbag cushion 100 so that hot gas is not directly discharged to the passenger P. Therefore, the vent holes 200 are formed at both side surfaces of the airbag cushion 100 to discharge gas. In addition, the vent hole 200 is preferably formed symmetrically on both side surfaces of the airbag cushion 100.

The vent hole covers 300 are disposed on both side surfaces of the airbag cushion 100 to correspond to the vent holes 200. The vent hole cover 300 covers the vent hole 200 to close the vent hole 200. In addition, the vent hole cover 300 may be symmetrically disposed on both side surfaces of the airbag cushion 100.

The vent hole cover 300 is disposed inside the airbag cushion 100 and is larger than the vent hole 200 regardless of the shape. In this embodiment, the vent hole cover 300 is formed in a semicircular shape.

The vent hole cover 300 is sewn to both sides of the airbag cushion 100. However, it is preferable that the vent hole cover 300 is sewn to both sides of the airbag cushion 100 in order to easily open the vent hole 200 by the opening member 400.

In addition, the vent hole cover 300 is preferably made of a material that can sufficiently withstand high temperature and high pressure gas. In the present embodiment, the vent hole cover 300 is made of the same fabric material as the airbag cushion 100.

Both ends of the opening member 400 are coupled to the vent hole cover 300, respectively. That is, one end is coupled to the vent hole cover 300 on the left side and the other end is coupled to the right vent hole cover 300. Therefore, the opening member 400 connects the respective vent hole covers 300 symmetrically disposed on both sides of the airbag cushion 100.

The opening member 400 is coupled to an upper end of the vent hole cover 300 in order to easily open the vent hole 200. That is, in the present embodiment, the opening member 400 is sewing coupled to the upper end of the vent hole cover 300.

The middle portion of the opening member 400 is disposed on the front surface of the airbag cushion 100. Therefore, when the head of the passenger P is loaded on the front surface of the airbag cushion 100 when the airbag cushion 100 is deployed, the opening member 400 pulls the vent hole cover 300 to vent the vent hole 200. Will open. In the present embodiment, the opening member 400 is made of a string.

The opening member 400 penetrates the guide line 500 as will be described later. Thus, the opening member 400 is guided to move forward by the guide line 500.

Guide lines 500 are disposed on both side surfaces of the airbag cushion 100, respectively. The guide line 500 has a through hole 510 in a longitudinal direction so that the opening member 400 can penetrate through the guide line 500. Guide line 500 is formed long in the front and rear, to guide the opening member 400 to move forward.

Guide line 500 is sewn to the bottom of the vent hole cover 300. In the present embodiment, the rear portion of the guide line 500 is sewn to the bottom of the vent hole cover 300, and the front portion is sewn to the side of the airbag cushion 100.

The through hole 510 formed in the guide line 500 may be formed to a size that allows the opening member 400 to pass well in consideration of the width of the opening member 400. In addition, the guide line 500 is preferably disposed symmetrically on both sides of the airbag cushion (100).

Referring to the operation of the vehicle airbag device 10 according to the present invention configured as described above are as follows.

Figure 4 is a partial perspective view schematically showing the operation of the vehicle airbag apparatus according to an embodiment of the present invention, Figure 5 is a schematic cross-sectional view showing the operation of the vehicle airbag apparatus according to an embodiment of the present invention.

4 and 5, when a vehicle collision occurs, the ACU transmits a control signal notifying the fact of the collision to the vehicle airbag device 10. Accordingly, the vehicle airbag device 10 allows the inflator to generate high temperature and high pressure gas.

The hot and high pressure gas generated in the inflator connected to the rear surface of the airbag cushion 100 is injected into the airbag cushion 100, whereby the airbag cushion 100 is deployed toward the passenger P.

When the airbag cushion 100 is deployed, if the head of the passenger P is loaded on the front surface of the airbag cushion 100, the airbag cushion 100 is forced to the rear side by the head of the passenger P.

The opening member 400 moves to the front side in proportion to the force of the head of the passenger P loaded on the front surface of the airbag cushion 100. That is, the opening member 400 is pulled.

As a result, the opening member 400 sewn to the upper end of the vent hole cover 300 pulls the vent hole cover 300. Accordingly, the upper end of the vent hole cover 300 comes down from the upper side like the curtain.

As the opening member 400 pulls the vent hole cover 300, the vent hole 200 covered by the vent hole cover 300 is opened. Therefore, the gas inside the airbag cushion 100 is discharged to the outside through the vent hole 200. Thereby, the passenger P can be prevented from being injured by excessive initial deployment pressure of the airbag cushion 100.

That is, in the initial stage of deployment of the airbag cushion 100, the cover is blocking the vent hole 200 by internal pressure, but from the time when the head of the passenger P is loaded on the front surface of the airbag cushion 100, the vent hole 200 is closed. ) Will open.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

10: vehicle airbag device 100: airbag cushion
200: vent hole 300: vent hole cover
400: opening member 500: guidelines
510: through hole P: passenger

Claims (10)

An airbag cushion deployed forward toward the passenger when gas is introduced;
Vent holes respectively formed at both side surfaces of the airbag cushion to discharge the gas;
A vent hole cover disposed to correspond to the vent hole and covering the vent hole;
Both ends are respectively coupled to the vent hole cover, the vehicle airbag apparatus including an opening member for opening the vent hole by pulling the vent hole cover. The method of claim 1,
And a guide line disposed on both sides of the airbag cushion and having through-holes through which the opening member penetrates. 3. The method of claim 2,
The guide line is formed long in the front, the vehicle airbag apparatus for guiding the opening member to move forward. The method of claim 1,
A lower end of the vent hole cover is sewn to each side of the air bag cushion, the airbag device for a vehicle. 3. The method of claim 2,
The guide line is coupled to the lower end of the vent hole cover vehicle vehicle apparatus. The method of claim 1,
The opening member is a vehicle airbag device coupled to the top of the vent hole cover. The method of claim 1,
The vent hole cover is a vehicle airbag device disposed inside the airbag cushion. The method of claim 1,
The opening member is a vehicle airbag device made of a string. The method of claim 1,
The vent hole cover is formed larger than the vent hole vehicle. The method of claim 1,
Each vent hole is symmetrically formed on both sides of the airbag cushion.
KR1020120109334A 2012-09-28 2012-09-28 Air-bag apparatus for vehicles KR20140042496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120109334A KR20140042496A (en) 2012-09-28 2012-09-28 Air-bag apparatus for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120109334A KR20140042496A (en) 2012-09-28 2012-09-28 Air-bag apparatus for vehicles

Publications (1)

Publication Number Publication Date
KR20140042496A true KR20140042496A (en) 2014-04-07

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Application Number Title Priority Date Filing Date
KR1020120109334A KR20140042496A (en) 2012-09-28 2012-09-28 Air-bag apparatus for vehicles

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160051130A (en) * 2014-10-31 2016-05-11 현대모비스 주식회사 Air bag apparatus
WO2017018652A1 (en) * 2015-07-28 2017-02-02 아우토리브 디벨롭먼트 아베 Airbag having variable vent function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160051130A (en) * 2014-10-31 2016-05-11 현대모비스 주식회사 Air bag apparatus
WO2017018652A1 (en) * 2015-07-28 2017-02-02 아우토리브 디벨롭먼트 아베 Airbag having variable vent function

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