KR20140084977A - Curtain airbag cushion - Google Patents

Curtain airbag cushion Download PDF

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Publication number
KR20140084977A
KR20140084977A KR1020120155036A KR20120155036A KR20140084977A KR 20140084977 A KR20140084977 A KR 20140084977A KR 1020120155036 A KR1020120155036 A KR 1020120155036A KR 20120155036 A KR20120155036 A KR 20120155036A KR 20140084977 A KR20140084977 A KR 20140084977A
Authority
KR
South Korea
Prior art keywords
airbag cushion
folded
curtain airbag
present
cushion
Prior art date
Application number
KR1020120155036A
Other languages
Korean (ko)
Inventor
이규상
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 KR1020120155036A priority Critical patent/KR20140084977A/en
Publication of KR20140084977A publication Critical patent/KR20140084977A/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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
    • 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
    • B60R21/237—Inflatable members characterised by the way they are folded
    • 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
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision
    • 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
    • B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
    • 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
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection

Abstract

Provided is a curtain airbag cushion which is folded to improve the deployment performance of the airbag cushion. The curtain airbag cushion according to an embodiment of the present invention includes a fold unit forming a first fold unit by folding the lower end of the airbag cushion with a first side surface and a second side surface arranged on the opposite side of the first side surface such that the first side surface is folded, and forming a second fold unit by folding the lower end of the first fold unit toward the first side surface such that the second side surface is folded, wherein the lower end of the second fold unit is folded toward the first side surface such that the second side surface is folded; and a linear unit which extends from the fold unit to the upper end of the airbag cushion and is formed into a linear shape by the fold unit facing to the second side surface.

Description

Curtain airbag cushion {CURTAIN AIRBAG CUSHION}

The present invention relates to a curtain airbag cushion, and more particularly to a folded curtain airbag cushion for mounting on a car.

BACKGROUND ART [0002] Generally, an automobile is provided with an airbag device, which is a safety device that protects an occupant by inflating an airbag cushion by inflow of gas at the time of an accident.

The airbag device is installed on each part of the vehicle as needed. The airbag device includes an airbag device for the driver's seat mounted on the steering wheel to protect the driver sitting on the driver's seat, A curtain airbag device mounted on the side of the automobile to protect the head of the passenger seat airbag device and the driver or passenger (hereinafter, the driver or passenger is referred to as the passenger for the sake of explanation) .

In the curtain airbag device, the front door and the rear door (hereinafter, the front door and the rear door are referred to as the door for understanding the description) Rear direction of the automobile.

The curtain airbag device is deployed while curtaining the glass of the door from the upper side of the door when the gas generated from the inflator flows into the inflator and is disposed between the door and the passenger head And the airbag cushion protecting the head of the passenger in a side collision of the automobile.

The airbag cushion is folded and mounted on the inside of the aileron and the pillars. When the gas generated from the inflator flows, the airbag cushion unfolds while being spread. At this time, the airbag cushion is not biased toward the inside of the vehicle, The airbag cushion does not prick the head of the passenger when it is deployed in the outward direction of the vehicle body.

Therefore, there is a demand for a method of folding the airbag cushion for guiding the airbag cushion to be deployed outwardly of the vehicle body.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a curtain airbag cushion folded so that the deployment performance of the airbag cushion can be improved.

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 curtain airbag cushion according to an embodiment of the present invention includes a lower end of an airbag cushion having a first side and a second side disposed opposite to the first side, And a lower portion of the first wrinkle portion is folded toward the first side to form a second wrinkle portion in which the second side portion abuts, and a lower end of the second wrinkle portion is folded toward the first side surface And a rectilinear portion extending from the wrinkle portion to an upper end of the airbag cushion and having the second side abutted against the wrinkle portion and formed as a straight line.

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

The curtain airbag cushion according to the present invention has a frictional resistance developed so that the folded portion spreads like a book unfolds so that the pressure developed toward the outside of the automobile is improved and the speed at which the automobile is deployed is improved, It is effective not to price the head of.

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.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a vehicle in which a curtain airbag cushion according to an embodiment of the present invention is mounted;
2 is a view showing a state in which a curtain airbag cushion according to an embodiment of the present invention is mounted on a vehicle,
3 is a sectional view taken along the line AA shown in Fig. 2,
4 is a side view of the curtain airbag cushion in an unfolded state according to the embodiment of the present invention,
5 is a cross-sectional view taken along the line BB shown in Fig. 4,
6 is a view showing a folding sequence of the curtain airbag cushion according to the 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, a curtain airbag cushion according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing an automobile on which a curtain airbag cushion according to an embodiment of the present invention is mounted, FIG. 2 is a view showing a state where a curtain airbag cushion according to an embodiment of the present invention is mounted on a vehicle, Sectional view taken along the line AA shown in Fig.

Referring to Figs. 1 to 3, a curtain airbag apparatus 100 including a curtain airbag cushion 10 according to an embodiment of the present invention is mounted long on the upper side of the automobile 1 in the front-rear direction.

The vehicle 1 is provided with a front door 2 and a rear door 3 on which an occupant (both a driver and a passenger, hereinafter, the passenger is described as a passenger for the sake of explanation) descends and descends. An A pillar 4 is disposed on the upper side of the front door 2 and a C pillar 5 is disposed on the upper side of the rear door 3.

The curtain airbag device 100 is mounted to the side inner panel 6 disposed on the inside of the apilar 4 and the seed pillars 5 in a longitudinal direction.

The curtain airbag device 100 includes an inflator 20 for generating a gas and an airbag cushion 10 connected to the inflator 20 for expanding and expanding when the gas generated from the inflator 20 is inflated to protect the head of the passenger ).

The airbag cushion 10 is folded and sealed in the cushion cover 30 and then mounted to the side inner panel 6 disposed inside the apilar 4 and the cine pillars 5 through the fastening member 7 .

The curtain airbag device 100 is concealed by the head liner 8 and becomes invisible from the inside of the vehicle interior. Here, the head liner 8 refers to an interior material made of a fabric material that covers a roof panel (not shown) of the automobile 1 from the inside of the vehicle interior. The head liner 8 is held in a weather strip 9 disposed at the lower end of the side inner panel 6 and is released from the weather strip 9 when the air bag cushion 10 is inflated, The airbag cushion 10 is extended out of the gap between the weather strip 9 and the headliner 8 and is deployed between the front door 2 and the rear door 3 and the head of the passenger, Protect the head of.

FIG. 4 is a side view of the curtain airbag cushion 10 in an unfolded state according to the embodiment of the present invention, and FIG. 5 is a sectional view taken along the line B-B of FIG.

4 and 5, a plurality of mounting tabs 15 for mounting to the side inner panel 6 are formed on the upper side of the airbag cushion 10. The mounting tab 15 is mounted on the side inner panel 6 through the fastening member 7 shown in Fig.

An inflator connecting portion 17 connected to the inflator 20 is formed on the rear upper side of the airbag cushion 10. The airbag cushion 10 is inflated and deployed by the gas generated from the inflator 20 being introduced into the chamber 19 of the airbag cushion 10. [

A pillar tether 16 fixed to the side inner panel 6 disposed inside the apaper 4 is coupled to the front of the airbag cushion 10. Therefore, the airbag cushion 10 can be deployed without being rearwardly restrained by the aileron tether 16 when inflated.

The airbag cushion 10 comprises a first side 12 and a second side 14 disposed opposite the first side 12. Before the gas is introduced into the chamber 19, the first side face 12 and the second side face 14 are disposed facing each other in a flat manner. Thus, with the airbag cushion 10 unfolded, the first side face 12 faces the outside of the automobile 1, and the second side face 14 faces toward the occupant.

The airbag cushion 10 must be deployed toward the outside of the automobile 1 without being deployed toward the passenger compartment toward the passenger in order to avoid the head of the passenger while the airbag cushion 10 is deployed.

The curtain airbag cushion 10 according to the embodiment of the present invention is folded so as to improve the pressure developed toward the outside of the automobile 1 and is inflated by the gas introduced from the inflator 20, So as not to charge the head of the passenger.

Hereinafter, the folded shape of the airbag cushion 10 will be described.

6 is a view showing a folding sequence of the curtain airbag cushion 10 according to the embodiment of the present invention.

Referring to Fig. 6, the airbag cushion 10 is folded to form a corrugated portion 11 and a straight portion 13, as shown in Fig. 6 (d). When the airbag cushion 10 is divided up and down in a state in which the airbag cushion 10 is flatly spread, the crease portion 11 is formed in the lower portion of the airbag cushion 10 and the straight portion 13 is formed in the crease portion 11 And is formed on the upper portion of the airbag cushion 10. The airbag cushion 10 is formed such that the vertical length H of the corrugated portion 11 and the straight portion 13 is 30 to 40 mm in the folded state and the corrugated portion 11 and the straight portion 13, And the left and right width W thereof is 15 mm to 20 mm.

6 (a), the lower end of the airbag cushion 10 is folded toward the first side face 12 and the straight line portion 13 toward the first side face 12, (13). At this time, the airbag cushion 10 is folded so that the first side face 12 abuts to form the first wrinkle portion 11a.

6 (b), the second corrugation 11b, in which the lower end of the first corrugation 11a is folded toward the first side 12 and the second side 14 is abutted, . In the present embodiment, the second corrugated portion 11b is formed by folding the lower end of the first corrugated portion 11a to the upper end of the first corrugated portion 11a.

6 (c), the lower end of the second wrinkle portion 11b is folded toward the first side face 12 to complete the wrinkle portion 11 where the second side face 14 is abutted, do. In the present embodiment, the corrugated portion 11 is formed by folding the lower end of the second corrugated portion 11b to the upper end of the second corrugated portion 11b.

6 (d), the second side face 14 of the straight portion 13 is disposed so as to face the pleated portion 11, and the process of folding the airbag cushion 10 is completed . The lower end of the corrugation 11 is folded 180 degrees toward the second side 14 of the rectilinear section 13 so that the rectilinear section 13 abuts the corrugation 11 in this embodiment.

After the airbag cushion 10 is sealed with the cushion cover 30 as shown in Fig. 3, the mounting tab 15 is taken out of the cushion cover 30 so that the folded airbag cushion 10 is not loosened And is attached to the side inner panel 6 through the fastening member 7.

As described above, the airbag cushion 10 folded and mounted on the side inner panel 6 inflates when gas generated from the inflator 20 enters the chamber 19 at the time of an accident of the automobile 1, The frictional resistance expanded by the airbag cushion 10 is reduced and the pressure developed toward the outside of the automobile 1 is improved so that it is unfolded toward the inside of the vehicle and developed toward the outside of the automobile 1 The head of the passenger is not charged. In addition, due to the reduction of the frictional resistance, the speed at which the airbag cushion 10 is deployed is also improved, so that the passenger can be protected quickly. That is, the conventional airbag cushion 10 is rolled and folded at the lower end toward the top. In this rolling-folded airbag cushion 10, the first side face 12 is continuously abutted with the second side face 14 The frictional resistance between the first side surface 12 and the second side surface 14 is largely generated when the airbag cushion 10 is unfolded so that the frictional resistance causes the pressure at which the airbag cushion 10 is deployed, The airbag cushion 10 folded according to the present embodiment can solve such a conventional problem.

Hereinafter, a process of unfolding the airbag cushion 10 according to the embodiment of the present invention will be described. Here, the process of unfolding the airbag cushion 10 is performed in the reverse order of the folding process. 6 (d) to FIG. 6 (a), and then completely unfolded as shown in FIG.

6 (d), when the airbag cushion 10 is mounted on the vehicle 1, when the accident of the automobile 1 occurs, the gas is generated from the inflator 20, The linear portion 13 is inflated by being introduced into the straight portion 13 of the casing 10, and then the gas is introduced into the corrugation portion 11. At this time, the corrugated portion 11, which is brought into contact with the second side surface 14 of the straight portion 13, extends from the second side surface 14 of the straight portion 13 as the book is spread, It unfolds like a tile.

Thereafter, the corrugated portion 11 is expanded, so that the lower end of the second corrugated portion 11b is spread out from the upper end of the second corrugated portion 11b as shown in FIG. 6 (b) as if the book is spread.

Thereafter, the second corrugated portion 11b is expanded, so that the lower end of the first corrugated portion 11a is spread out from the upper end of the first corrugated portion 11a as shown in FIG. 6 (a) .

Thereafter, the first wrinkle portion 11a is inflated so that the lower end of the airbag cushion 10 spreads out from the first side of the airbag cushion 10, as shown in Fig. 5, ) Is completed.

As described above, since the folded airbag cushion 10 according to the embodiment of the present invention unfurls and unfurls as the book is unfolded, the folded airbag cushion 10, The frictional resistance is reduced as compared with the folded airbag cushion 10 in the rolling manner of the airbag cushion 10 so that the pressure developed toward the outside of the automobile 1 is improved and the passenger's head is not charged during the deployment of the airbag cushion 10 . Further, due to the reduction of the frictional resistance, the speed at which the airbag cushion 10 is deployed can also be improved.

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.

10: air bag cushion 11:
11a: first wrinkle portion 11b: second wrinkle portion
12: first side 13: linear portion
14: Second aspect

Claims (6)

A lower end of the airbag cushion having a first side and a second side disposed opposite to the first side is folded so that the first side abuts to form a first fold, A folded portion formed by folding the lower surface of the second wrinkle portion toward the first side surface so that the second side surface is brought into contact with the second side surface; And
And a straight portion extending from the wrinkle portion to an upper end of the airbag cushion, wherein the second side surface is in contact with the wrinkle portion and is formed as a straight line. The method according to claim 1,
Wherein the first side is disposed toward the outside of the automobile and the second side is disposed toward the occupant with the airbag cushion unfolded. The method according to claim 1,
And the second corrugation portion is formed by folding the lower end of the first corrugation portion to an upper end of the first corrugation portion. The method according to claim 1,
And the folded portion is formed by folding the lower end of the second folded portion to the upper end of the second folded portion. The method according to claim 1,
And a lower end of the wrinkle portion is folded 180 degrees toward the second side, and the straight portion abuts the wrinkle portion. The method according to claim 1,
Wherein the upper and lower lengths of the crease portion and the straight portion are the same when the airbag cushion is folded.
KR1020120155036A 2012-12-27 2012-12-27 Curtain airbag cushion KR20140084977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120155036A KR20140084977A (en) 2012-12-27 2012-12-27 Curtain airbag cushion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120155036A KR20140084977A (en) 2012-12-27 2012-12-27 Curtain airbag cushion

Publications (1)

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KR20140084977A true KR20140084977A (en) 2014-07-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020109463A1 (en) * 2018-11-29 2020-06-04 Dalphi Metal Espana, S.A. Airbag module and method for the production thereof
US11142158B2 (en) 2019-10-15 2021-10-12 Fca Us Llc Vehicle interior trim assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020109463A1 (en) * 2018-11-29 2020-06-04 Dalphi Metal Espana, S.A. Airbag module and method for the production thereof
US11535187B2 (en) 2018-11-29 2022-12-27 Dalphi Metal Espana, S.A. Airbag module and method of manufacturing said airbag module
US11142158B2 (en) 2019-10-15 2021-10-12 Fca Us Llc Vehicle interior trim assembly

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