KR20120129473A - Passenger airbag apparatus - Google Patents

Passenger airbag apparatus Download PDF

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Publication number
KR20120129473A
KR20120129473A KR1020110047742A KR20110047742A KR20120129473A KR 20120129473 A KR20120129473 A KR 20120129473A KR 1020110047742 A KR1020110047742 A KR 1020110047742A KR 20110047742 A KR20110047742 A KR 20110047742A KR 20120129473 A KR20120129473 A KR 20120129473A
Authority
KR
South Korea
Prior art keywords
airbag cushion
passenger
vent tube
airbag
tether
Prior art date
Application number
KR1020110047742A
Other languages
Korean (ko)
Inventor
권해욱
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 KR1020110047742A priority Critical patent/KR20120129473A/en
Publication of KR20120129473A publication Critical patent/KR20120129473A/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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • 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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
    • 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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • 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
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01211—Expansion of air bags
    • B60R2021/01225—Expansion of air bags control of expansion volume
    • 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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B60R2021/23386—External tether 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
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23533—Inflatable members characterised by their material characterised by the manufacturing process
    • B60R2021/23538—Sewing

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

Abstract

When the position of the airbag cushion and the passenger is too close, the pressure of the deployment of the airbag cushion is suppressed, and when the position of the airbag cushion and the passenger is a suitable distance, a passenger seat airbag device that can maintain the deployment pressure of the airbag cushion do.
To this end, the passenger seat airbag device according to an embodiment of the present invention is inflated when the gas is introduced, the airbag cushion with a guide hole is formed, and disposed outside the airbag cushion, the gas introduced into the airbag cushion is discharged It includes a vent tube and a tether through the guide hole to tighten and close the vent tube as the airbag cushion is inflated.

Description

Passenger seat airbag device {PASSENGER AIRBAG APPARATUS}

The present invention relates to a passenger seat airbag device, and more particularly, to a passenger seat airbag device in which the deployment pressure of the airbag cushion varies according to the position of the passenger.

In general, a vehicle is provided with an airbag device that is a safety device to protect the occupant by inflating the airbag cushion by receiving gas from the inflator in case of an accident.

Such an airbag device is installed in each part of the vehicle as needed, and the driver's seat airbag device mounted on the steering wheel to protect the driver sitting in the driver's seat, and the glove box mounted above the glove box to protect the passenger sitting in the passenger's seat. A passenger airbag device and a curtain airbag device mounted along the roof rail to protect the side of the occupant have been proposed.

These airbag devices are each configured to include an inflator for generating a gas and an airbag cushion connected to the inflator to protect the occupant by expanding and expanding when the gas is introduced.

Recently, airbag devices have been shown to protect the passengers with the proper deployment pressure by varying the deployment pressure depending on the position of the passenger.

In particular, the air bag apparatuses of the active type in which the deployment pressure of the airbag cushion is changed by allowing the amount of gas discharged from the airbag cushion to be adjusted by the passenger loaded on the airbag cushion are attracting attention.

The problem to be solved by the present invention is to suppress the deployment pressure of the airbag cushion when the position of the airbag cushion and the passenger is too close, and the deployment pressure of the airbag cushion when the position of the airbag cushion and the passenger is a proper distance To provide a sustainable passenger airbag device.

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 device according to an embodiment of the present invention is inflated when the gas is introduced, the airbag cushion with a guide hole is formed, and disposed outside the airbag cushion, and flowed into the airbag cushion And a vent tube through which the gas is discharged, and a tether for tightening and closing the vent tube as the air bag cushion expands through the guide hole.

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

According to the passenger seat airbag device according to the present invention has one or more of the following effects.

First, since the vent tube is opened or closed depending on whether the airbag cushion is restrained by the passenger, it is possible to protect the passenger at an appropriate deployment pressure by actively adjusting the gas discharge amount according to the position of the passenger.

Second, since the vent tube does not enter the inside of the airbag cushion and is closed from the outside of the airbag cushion, the deployment shape of the airbag cushion does not change, and the internal volume of the airbag cushion does not change, so that the airbag cushion Design can be developed at the intended deployment pressure.

Third, since the vent tube is opened when the passenger is in the OOP and gas inside the airbag cushion is discharged through the vent tube, even if the distance between the airbag cushion and the passenger is too close, the excessive pressure of the airbag cushion Injury can be prevented.

Fourth, since the vent tube is closed when the passenger is in the normal position so that gas inside the air bag cushion is not discharged through the vent tube, the air bag cushion can protect the passenger in the normal position while maintaining the proper pressure.

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

1 is a perspective view showing a passenger seat airbag device according to an embodiment of the present invention,
2 is a side view showing a passenger seat airbag device according to an embodiment of the present invention;
3 is a view showing the action according to the size of the airbag cushion inflating the passenger seat airbag apparatus 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, a passenger seat airbag device according to an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view showing a passenger seat airbag device according to an embodiment of the present invention, Figure 2 is a side view showing a passenger seat airbag device according to an embodiment of the present invention.

1 and 2, a passenger seat airbag device according to an embodiment of the present invention includes an airbag cushion 10 that expands and expands when gas is introduced to protect a passenger sitting in the passenger seat 3.

The airbag cushion 10 is made of three panels. That is, the airbag cushion 10 includes a main panel 12 inflated and deployed in contact with a passenger, and side panels 14 stitched to both sides of the main panel 12.

The airbag cushion 10 is connected to the inflator 20, which is a gas generator, and expands and expands when gas generated from the inflator 20 flows in an automobile accident.

By the way, when the airbag cushion 10 is inflated, when the passenger sits in front of the passenger seat 3 or the passenger sits by pulling the front passenger seat 3 forward, the passenger and the airbag cushion sitting in the passenger seat 3 ( Since the distance to 10) is too close, the passenger may be injured by excessive deployment pressure of the airbag cushion 10. In FIG. 2, reference numeral 1 denotes a passenger 1 in a normal position, indicating that the distance between the airbag cushion 10 and the passenger 1 is at an appropriate distance, and the passenger 1 at this position is an airbag. It can be protected by the proper development pressure of the cushion 10. Reference numeral 2 denotes a passenger 2 in an out of position (OOP), which indicates that the distance between the airbag cushion 10 and the passenger 2 is too close, and the passenger 2 at this position Excessive deployment pressure of the airbag cushion 10 may cause injury.

In this way, in order to prevent injury from excessive deployment pressure of the airbag cushion 10 when the passenger 2 is in the OOP, the airbag cushion 10 is provided on the side panel 14 to the inside of the airbag cushion 10. Vent holes 16 through which the introduced gas is discharged are formed. However, when the passenger 1 is in the normal position, too much gas is discharged through the vent hole 16 in the process of deploying the airbag cushion 10, so that the deployment pressure of the airbag cushion 10 becomes too low. There is a possibility that the passenger 1 in the normal position may not be protected by the appropriate pressure.

Therefore, in the passenger seat airbag apparatus according to the embodiment of the present invention, a guide hole 15 is further formed in the airbag cushion 10 to adjust the gas discharge amount of the airbag cushion 10 according to the position of the passenger, and the vent tube 30 and tether 40 are further disposed.

The guide hole 15 is formed in the side panel 14, and the vent tube 30 is spaced apart from the guide hole 15 and disposed in the side panel 14.

The vent tube 30 is stitched to the outside of the side panel 14 to discharge the gas introduced into the airbag cushion 10.

The tether 40 has one end coupled to the circumference of the vent tube 30 at the outside of the airbag cushion 10, and the other end penetrates the guide hole 15 and is inserted into the airbag cushion 10, and then the main panel ( 12). The tether 40 is in a loose state when the airbag cushion 10 is folded, and then moves along the airbag cushion 10 when the airbag cushion 10 is inflated by the gas introduced into the airbag cushion 10. It becomes tight. Therefore, the tether 40 pulls the vent tube 30 while being inflated as the airbag cushion 10 is inflated, and thus the vent tube 30 is closed while being tightened by the tether 40. Therefore, the airbag cushion 10 discharges the gas only through the vent hole 16 without discharging the gas through the vent tube 30. After the tether 40 is tightened, a loop is formed at one end of the tether 40 so that the vent tube 30 can be tightened, and the other end of the tether 40 passes through the guide hole 15 through the loop. It may be coupled to the main panel 12.

In particular, the vent tube 30 is tightened by the tether 40 so as not to enter the interior of the airbag cushion 10, but closed outside the airbag cushion 10. Therefore, compared to the way in which the vent tube 30 enters the airbag cushion 10 and is closed, the deployment shape of the airbag cushion 10 does not change, and since the internal volume of the airbag cushion 10 does not change, the airbag The cushion 10 may be deployed at a design intended deployment pressure.

The vent tube 30 includes a base portion 32 protruding from the airbag cushion 10, and a tether coupling portion 34 formed at an end of the base portion 32. Tether 40 is coupled to the circumference of the tether coupling portion 34 is formed thin so that only the end of the vent tube 30 can be tightened. Vent tube 30 is formed in a hollow cylindrical shape so that the gas introduced into the airbag cushion 10 can be discharged, the tether coupling portion 34 is formed by folding the end of the base portion 32, the circumference Wrap the tether 40 disposed in the.

3 is a view showing the action according to the size of the airbag cushion inflating the passenger seat airbag apparatus according to an embodiment of the present invention.

Referring to Figure 3, P3 represents the normal position of the passenger, the airbag cushion 10 is fully inflated when the passenger is in the P3 position. At this time, the vent tube 30 is tightened and closed by the tether 40, and the gas is discharged only through the vent hole 16, so that the airbag cushion 10 can maintain the proper deployment pressure. The tether 40 is in a loose state before the airbag cushion 10 is inflated, and then moves along the airbag cushion 10 and becomes taut when the airbag cushion 10 is inflated, so that the airbag cushion 10 is fully inflated. When the vent tube 30 is formed to a length capable of closing.

The section P1 to P2 indicates that the passenger is in the OOP, and when the passenger is in the section P1 to P2, the airbag cushion 10 is restrained by the passenger who is an obstacle while inflating. At this time, since the vent tube 30 and the vent hole 16 are both opened and the gas is discharged, the passenger located in the OOP is not injured by the excessive deployment pressure of the airbag cushion 10.

P2 ~ P3 section is a section that is closed while the vent tube 30 is tightened by the tether 40 as the airbag cushion 10 is inflated. Therefore, if the expansion is constrained by the passengers who are obstacles in the sections P1 to P3 while the airbag cushion 10 is inflated, the vent tube 30 remains at least open.

The expansion process of the airbag cushion 10 will be described below.

The airbag cushion 10 is folded a plurality of times in a flat state, and is accommodated in the housing 5 while being connected to the inflator 20 (S1). When an automobile accident occurs in this state, gas is generated from the inflator 20, and the generated gas flows into the airbag cushion 10.

When gas is introduced into the airbag cushion 10, the airbag cushion 10 begins to expand while being inflated, and accordingly, the vent tube 30 is also expanded to open (S2).

The airbag cushion 10 is further inflated by the continuous inflow of gas, and the vent hole 16 is also opened in the P1 to P2 sections, which are OOP sections, so that the airbag cushion 10 includes the vent tube 30 and the vent hole 16. Gas is discharged through (S3).

When the airbag cushion 10 is further inflated to reach the section P2 to P3, the tether 40 is tightened and starts to tighten the vent tube 30 (S4).

When the airbag cushion 10 is fully inflated to reach the passenger's normal position P3, the vent tube 30 is completely tightened by the tether 40 and closed, and only through the vent hole 16 of the airbag cushion 10 Gas introduced into the inside is discharged (S5). In particular, the vent tube 30 is tightened by the tether 40 so as not to enter the interior of the airbag cushion 10, but closed outside the airbag cushion 10.

As described above, the passenger seat airbag device according to the present invention, since the vent tube 30 is opened or closed depending on whether the airbag cushion 10 is restrained by the expansion of the passenger, the amount of gas discharged actively according to the position of the passenger. It can be adjusted to protect the passengers with proper deployment pressure.

In addition, since the vent tube 30 does not enter the airbag cushion 10 and is closed outside the airbag cushion 10, the deployment shape of the airbag cushion 10 does not change, and the airbag cushion 10 Since the internal volume of the air bag cushion 10 does not change, the airbag cushion 10 can be deployed at a design intended deployment pressure.

In addition, since the vent tube 30 is opened when the passenger is in the OOP and the gas inside the airbag cushion 10 is discharged through the vent tube 30, even if the distance between the airbag cushion 10 and the passenger is too close. The passenger can be prevented from being injured by excessive deployment pressure of the airbag cushion 10.

In addition, since the vent tube 30 is closed when the passenger is in the normal position so that the gas inside the airbag cushion 10 is not discharged through the vent tube 30, the airbag cushion 10 maintains the proper pressure. Protect passengers in their normal positions.

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. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. 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.

10: airbag cushion 12: main panel
14: side panel 15: guide hole
16: venthole 20: inflator
30: vent tube 32: base portion
34: tether coupling portion 40: tether

Claims (9)

An airbag cushion inflated when gas is introduced therein and formed with a guide hole;
A vent tube disposed outside the airbag cushion and configured to discharge gas introduced into the airbag cushion; And
And a tether for closing and closing the vent tube as the airbag cushion is inflated through the guide hole. The method according to claim 1,
The tether is a passenger seat airbag device, one end is coupled to the circumference of the vent tube, the other end is coupled to the airbag cushion. The method according to claim 1,
The vent tube,
A base portion protruding from the airbag cushion,
A passenger seat airbag device which is formed at the end of the base portion, and includes a tether coupling portion coupled to the tether around. The method according to claim 1,
The vent tube is tightened by the tether and closed on the outside of the airbag cushion. The method according to claim 1,
The tether is formed to a length capable of closing the vent tube when the airbag cushion is fully inflated, and the vent tube is opened when the airbag cushion is inflated by an obstacle while the airbag cushion is inflated. The method according to claim 1,
And a vent hole formed in the airbag cushion, through which a gas introduced into the airbag cushion is discharged. The method according to claim 1,
The airbag cushion,
The main panel in contact with the passenger,
A passenger seat airbag device coupled to both sides of the main panel, the side panel including the vent tube is disposed. The method of claim 7,
The guide hole is a passenger seat airbag device formed in the side panel. The method of claim 7,
The tether is coupled to one end around the vent tube, the other end is coupled to the passenger seat airbag device.
KR1020110047742A 2011-05-20 2011-05-20 Passenger airbag apparatus KR20120129473A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110047742A KR20120129473A (en) 2011-05-20 2011-05-20 Passenger airbag apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110047742A KR20120129473A (en) 2011-05-20 2011-05-20 Passenger airbag apparatus

Publications (1)

Publication Number Publication Date
KR20120129473A true KR20120129473A (en) 2012-11-28

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ID=47513964

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110047742A KR20120129473A (en) 2011-05-20 2011-05-20 Passenger airbag apparatus

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017018652A1 (en) * 2015-07-28 2017-02-02 아우토리브 디벨롭먼트 아베 Airbag having variable vent function
KR20200139653A (en) * 2014-04-02 2020-12-14 현대모비스 주식회사 Air bag apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200139653A (en) * 2014-04-02 2020-12-14 현대모비스 주식회사 Air bag apparatus
WO2017018652A1 (en) * 2015-07-28 2017-02-02 아우토리브 디벨롭먼트 아베 Airbag having variable vent function
KR20170013695A (en) * 2015-07-28 2017-02-07 아우토리브 디벨롭먼트 아베 Airbag with varibable vetning

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