WO2017018652A1 - Airbag having variable vent function - Google Patents

Airbag having variable vent function Download PDF

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Publication number
WO2017018652A1
WO2017018652A1 PCT/KR2016/005758 KR2016005758W WO2017018652A1 WO 2017018652 A1 WO2017018652 A1 WO 2017018652A1 KR 2016005758 W KR2016005758 W KR 2016005758W WO 2017018652 A1 WO2017018652 A1 WO 2017018652A1
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WO
WIPO (PCT)
Prior art keywords
airbag cushion
tether
vent hole
airbag
vent
Prior art date
Application number
PCT/KR2016/005758
Other languages
French (fr)
Korean (ko)
Inventor
박현교
장동현
Original Assignee
아우토리브 디벨롭먼트 아베
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 아우토리브 디벨롭먼트 아베 filed Critical 아우토리브 디벨롭먼트 아베
Publication of WO2017018652A1 publication Critical patent/WO2017018652A1/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
    • 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
    • B60R21/02—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

Definitions

  • the present invention relates to an airbag having a variable vent function to protect a front seat passenger for a vehicle deployed between an instrument panel and a passenger.
  • vehicles are equipped with airbags to protect passengers in the event of a vehicle crash.
  • the airbag cushion of the airbag is inflated and deployed by gas flowing into it from the inflator in the event of a vehicle crash to protect the passenger.
  • the interior volume of a conventional airbag cushion is designed to have a deployment pressure that can protect the average adult.
  • OPP Out of Position
  • the airbag cushion has a deployment pressure that adjusts the deployment pressure of the airbag cushion according to the vehicle's conditions, such as the vehicle speed, the passenger's condition, such as the physique of the passenger, the seating position of the passenger, or both conditions of the vehicle and the passenger.
  • vehicle's conditions such as the vehicle speed, the passenger's condition, such as the physique of the passenger, the seating position of the passenger, or both conditions of the vehicle and the passenger.
  • An adjustment means is necessary.
  • airbags When a passenger touches an inflated airbag cushion, airbags are widely known that provide a vent hole on the airbag cushion to gently accommodate the passenger and allow gas to be vented from the inside of the airbag cushion to the outside of the airbag through the venthole. have.
  • NTAS National Highway Traffic Safety Administration
  • the airbag cushion is provided with a normally open vent hole (hereinafter referred to as a "normal vent hole”) and a vent hole (hereinafter referred to as a "safe vent hole”) to selectively open and close the vent hole according to the airbag deployment state.
  • a normally open vent hole hereinafter referred to as a "normal vent hole”
  • a vent hole hereinafter referred to as a "safe vent hole”
  • An object of the present invention is to provide an airbag having a variable vent function capable of appropriately adjusting the strength of the airbag cushion according to the condition of the vehicle and / or passenger while integrating the functions of the normal vent hole and the safety vent hole of the airbag cushion.
  • an airbag cushion that expands and deploys between a wind shield and an instrument panel of a vehicle, and expands and deploys between an instrument panel and a passenger;
  • an airbag having a variable vent function including a tether that shields the vent hole by tension.
  • the vent hole may be formed at an angle within a range of + 45 ° to -45 ° from a perpendicular line perpendicular to a line bisecting an angle formed by the wind shield and the instrument panel.
  • the vent hole may be formed in a straight, elliptical, or eight shape.
  • the vent hole may be disposed to be positioned in front of the head of the child 6 years or younger when a child 6 years or younger collides with the initial inflated airbag cushion.
  • Tether guide means for guiding the movement of the tether is formed at the front side of the vent hole, one end of the tether is connected to the outer surface of the airbag cushion at the rear side of the vent hole, the other end of the tether is the tether guide means After being guided to the front of the vent hole through it can be restrained on the front of the airbag cushion.
  • the tether guide means may include a tether hole or a tether guide member.
  • One end of the tether is connected to the outer surface of the airbag cushion at the front side of the vent hole, and a tether guide means for guiding the movement of the tether is formed at the rear side of the vent hole, and the other end of the tether is provided through the tether guide means. It may be guided to the rear of the vent hole and bent toward the front of the airbag cushion and then restrained on the front of the airbag cushion.
  • the tether guide means may include a tether hole or a tether guide member.
  • an airbag includes a tether moving as the airbag cushion is inflated and deployed, and a vent play for shielding a vent hole formed in the airbag cushion by the tension of the tether.
  • the shielding of the vent hole can be variably adjusted according to the above.
  • the vent hole may be formed long along the longitudinal direction of the airbag cushion to increase the opening of the vent hole when a passenger collides with the airbag cushion during initial deployment of the airbag cushion.
  • the root of the tether in restricting the vent hole by the tether being tensioned when the airbag cushion is deployed, may be varied to effectively shield the vent hole.
  • FIG. 1 is a side view showing the configuration of a vehicle airbag apparatus according to an embodiment of the present invention.
  • FIG 2 is a partially enlarged side view showing the configuration of the vent device of the present invention.
  • FIG 3 is a partially enlarged perspective view showing the configuration of the vent device of the present invention.
  • FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 3.
  • FIG. 5 is a side view showing an initial deployment state of the airbag cushion of the present invention.
  • Fig. 6 is a cross sectional view showing an initial deployed state of the airbag cushion of the present invention.
  • Figure 7 is a side view showing a full bloom of the airbag cushion of the present invention.
  • FIG. 8 is a cross-sectional view showing a state of full bloom of the airbag cushion of the present invention.
  • FIG. 9 is a side view illustrating a state where a passenger collides with the airbag cushion in full bloom of the present invention.
  • FIG. 10 is a cross-sectional view showing a state where a passenger collided with the airbag cushion in full bloom of the present invention.
  • FIG. 11 is a cross-sectional view showing the configuration of an airbag according to another embodiment of the present invention.
  • FIG. 12 is a partially enlarged perspective view illustrating an enlarged configuration of a vent device according to another exemplary embodiment of the present disclosure.
  • FIG. 13 is a partially enlarged perspective view showing the configuration of another vent hole of the present invention.
  • FIG. 14 is a partially enlarged perspective view illustrating a configuration of a vent device according to another exemplary embodiment of the present disclosure.
  • FIG. 16 is a partially enlarged perspective view illustrating a configuration of a vent device according to still another embodiment of the present invention.
  • 17 is a cross-sectional view taken along the line VII-VII of FIG.
  • the direction toward the passenger is indicated by “F”
  • the direction toward the side where the airbag cushion is connected to the inflator is indicated by “R”
  • FIG. 1 is a side view showing the inside of a vehicle having an inflated airbag cushion according to an embodiment of the present invention.
  • the airbag apparatus 1 for protecting a passenger O includes an inflatable airbag 100.
  • the airbag 100 is a passenger front airbag that protects a passenger in the passenger side seat of the vehicle.
  • the airbag 100 may be part of an airbag module 10 that includes an inflator 3 and a housing 5.
  • the airbag 100 is accommodated in the folded state in the housing 5.
  • the airbag module 10 is mounted to the instrument panel 7 of the vehicle.
  • the airbag 100 includes an airbag cushion 110 that is inflatable between the instrument panel 7 and the passenger O.
  • the inflator 3 operates to supply inflation fluid (hereinafter referred to as "gas") to the airbag cushion 110 such that the airbag cushion 110 is deployed in an inflated state.
  • gas inflation fluid
  • the inflator 3 can be operated by accumulated gas, solid propellant, augment, mixture or the like.
  • the airbag device 1 may further include a sensor 9 that detects a case for inflation of the airbag cushion 110, such as a vehicle crash or just before the vehicle crash.
  • the inflator 3 is electrically connected to the sensor 9.
  • the airbag cushion 110 can be made of any suitable material, such as nylon, and can be made in any suitable manner.
  • the airbag cushion 110 may include one or more panel or piece materials. If more than one piece or panel is used, the pieces or panels may be connected to each other to form the airbag cushion 110 by various means such as sewing, ultrasonic welding, heat bonding or adhesives.
  • the airbag cushion 110 may have a gas tight configuration.
  • the airbag cushion may be coated with a material laminated with a material such as a gas impermeable urethane or a gas impermeable film.
  • the sensor 9 When the sensor 9 detects that the airbag cushion 110 needs to be inflated, such as a vehicle crash, the sensor 9 transmits a signal to the inflator 3. Upon receiving a signal from the sensor 9, the inflator 3 operates to provide gas to the airbag cushion 110. The inflating airbag cushion 110 expands from the folded state in the housing 5 to the deployed state as shown in FIG. 1.
  • the airbag cushion 110 protects the passenger O from impacts in conjunction with parts of the vehicle, such as the instrument panel 7 or steering wheel (not shown).
  • the airbag cushion 110 is configured to absorb the impact force exerted on the airbag cushion 110 by the passenger to protect the passenger O when deployed in response to the need for passenger protection.
  • the airbag 100 is configured to control the pressurization, deployment, and inflation adjustment of the airbag cushion in response to the state of the vehicle, the state of the passenger, the two states of the vehicle and the passenger. These features are passively operable in response to vehicle and passenger status.
  • the airbag 100 comprises a vent device (V).
  • the vent device V includes a vent hole 111 formed at one side of the airbag cushion 110 and a vent adjuster 130 for adjusting the opening and closing degree of the vent hole 111 according to the state of the vehicle and the passenger. do.
  • the vent regulator 130 includes a tether 131, one end of which is connected to the periphery of the vent hole 111 and the other end of which is constrained to the front surface 112 of the airbag cushion 110.
  • the vent hole 111 is not restrained by the tether 131 to which no tension force is applied.
  • the airbag cushion 110 is inflated and deployed between the wind shield W and the instrument panel 7, and is pressurized by the wind shield W and the instrument panel 7 to provide a vent hole ( 111 is opened.
  • the airbag 100 is configured to shield the vent hole 111 by a combination of the tether 131, the shape of the vent hole 111, and the position of the vent hole 111.
  • Inflation, deployment and pressure of the airbag cushion 110 may be adjusted according to the passenger colliding with Such a configuration may depend on the vehicle and / or passenger's condition, such as passenger size / weight, whether or not the passenger seatbelt is engaged, the passenger's seating position (front / rear, upright / or tilted), and the speed of the vehicle.
  • the strength of the airbag cushion 110 in contact with may be adjusted.
  • FIG. 2 is an enlarged side view showing an enlarged configuration of the vent device of the present invention.
  • the vent hole 111 is + 45 ° from a vertical line V orthogonal to a line D that bisects an angle ⁇ ° formed by the wind shield W and the instrument panel 7. It is formed at an angle in the range of -45 °.
  • the vent hole 111 may include all shapes having a substantially vertical shape such as a straight line (see FIG. 1), an oval shape (hole shape including an arced inner circumferential surface facing each other, FIG. 3), and an eight-shaped shape (see FIG. 13). can do. With this configuration, during the initial deployment of the airbag cushion 110, the airbag cushion 110 can smoothly open the vent hole 111 by the pressing force from the wind shield W and the instrument panel 7 (dotted line). Display status).
  • the vent hole 111 is disposed such that the child O1 6 years old or younger is positioned in front of the head H of the child O1 6 years old or younger when the airbag cushion 110 collides with the airbag cushion 110 during the initial deployment of the airbag cushion 110. do. Vent hole 111 to quickly increase the internal pressure in the airbag cushion 110, during the initial deployment of the airbag, when the passenger collides with the airbag cushion 110, the vent hole 111 to open smoothly to vent Make it work.
  • FIG. 3 is a partial perspective view showing the configuration of the vent device of the present invention
  • Figure 4 is a cross-sectional view along the line IV-IV of FIG.
  • one end 131a of the tether 131 constituting the vent controller 130 is connected to the rear outer surface of the vent hole 111 through the sewing line S1.
  • the other end 131c of the tether 131 is inserted into the airbag cushion 110 through the tether hole 114 formed in front of the vent hole 111 across the vent hole 111, and the airbag cushion 110. Is constrained to the front face 112 (see FIG. 1).
  • the other end 131 of the tether 131 may be directly connected to the front surface of the airbag cushion 110 or may be connected to a portion adjacent to the inflator 3 via the front surface 112 of the airbag cushion 110.
  • the tether 131 may be connected to the airbag cushion 110 by sewing, ultrasonic welding, heat bonding, or adhesive.
  • the tether hole 114 is tightened by the tension of the tether 131 to prevent gas leakage. That is, when the tether 131 is tensioned, the front portion A of the tether hole 114 is moved to the rear R so that the vent hole 111 may be firmly closed to prevent gas leakage.
  • FIG 5 is a side view showing an initial deployment state of the airbag cushion of the present invention
  • Figure 6 is a cross-sectional view showing an initial deployment state of the airbag cushion of the present invention.
  • the sensor 9 transmits a signal to the inflator 3.
  • the inflator 3 operates to provide gas to the airbag cushion 110.
  • the vent hole 111 is not constrained to the tether 131. Therefore, the vent hole 111 is closed and the gas from the inflator 3 is weakly leaked so that the airbag cushion 110 expands relatively quickly.
  • the airbag cushion 110 when the gas is supplied to the airbag cushion 110 to some extent and the airbag cushion 110 is initially inflated, the airbag cushion 110 is expanded and deployed between the windshield W and the instrument panel 7, and the windshield And W from the instrument panel 7.
  • the vent hole 111 is + 45 ° to -45 ° from a vertical line V orthogonal to a line D that bisects the angle ⁇ ° formed by the wind shield W and the instrument panel 7.
  • One direction is formed long in the range, and it opens smoothly by the pressing force of the wind shield W and the instrument panel 7 (refer FIG. 2).
  • the gas in the airbag cushion 10 may be discharged through the vent hole 111 that is smoothly opened.
  • injuries due to the deployment of airbags can be minimized, for example, for OPP passengers, children, or small adult passengers.
  • the airbag cushion 110 when an OPP passenger, a child, or an adult passenger having a small body collides with the airbag cushion 110, a relatively large amount of gas through the fully opened vent hole 111 Is discharged to the outside of the airbag cushion 110, the strength of the airbag cushion 110 is appropriately adjusted. Therefore, during the initial deployment of the airbag cushion 110, the passenger is not injured by the inflation force of the airbag cushion 110.
  • Figure 8 is a cross-sectional view showing a full bloom of the airbag cushion of the present invention.
  • FIG. 9 is a side view illustrating a state in which a passenger collides with the airbag cushion in full bloom of the present invention
  • FIG. 10 is a cross-sectional view illustrating a state in which a passenger collides with the airbag cushion in full bloom of the present invention.
  • the passenger since the degree of movement of the tether 131 is changed according to the size / weight of the passenger O colliding with the airbag cushion 110 in the above-described vent operation, the passenger ( The opening degree of the vent hole 111 may be adjusted by contact with O).
  • the position of the tether 131 in contact with the front surface of the airbag cushion 110 may be changed to various positions.
  • the impact force applied to the tether 131 from the passenger O is variably applied, so that the looseness of the tether 131 is adjusted to control the opening of the vent hole 111.
  • the configuration is substantially the same as the above-mentioned embodiment. Therefore, hereinafter, the description of the same components mentioned above will be omitted, and mainly the connection structure of the tether 231 will be described.
  • FIG 11 is a cross-sectional view showing the configuration of an airbag according to another embodiment of the present invention
  • Figure 12 is a partially enlarged perspective view showing an enlarged configuration of the vent device according to another embodiment of the present invention.
  • one end 231a of the tether 231 is connected to the outer surface of the airbag cushion 210 at the front side of the vent hole 211 through a sewing line S2.
  • the tether hole 214 is formed at the rear side of the vent hole 211 of the airbag cushion 210.
  • the other end 231c of the tether 231 is inserted into the airbag cushion 210 through the tether hole 214 and is bent toward the front of the airbag cushion 210 and then restrained on the front of the airbag cushion 210. Connected.
  • the gas in the airbag cushion 210 may be prevented from leaking to the outside to properly maintain the internal pressure of the airbag cushion 210.
  • the tether may be configured to variously control the closure of the vent hole by being constrained to the airbag cushion with various routes as described above.
  • the periphery of the above-mentioned tether holes 114 and 214 may be formed with a sewing line to prevent both ends of the tether holes 114 and 214 from being torn due to the pulling force of the tethers 131 and 231 or the expansion force of the airbag cushions 110 and 210.
  • a separate reinforcing member is overlapped around the tether holes 114 and 214, and the reinforcing member is coupled to the airbag cushions 110 and 210 through a sewing line formed along the periphery of the tether holes 114 and 214. The tearing of the 114 and 214 can be prevented.
  • FIG. 13 is a partially enlarged perspective view showing the configuration of another vent hole of the present invention.
  • the vent hole 311 includes a linear slit hole portion 311b provided between two circular hole portions 311a and the circular hole portion 311a. By such a configuration, the vent hole 311 is formed in an approximately eight shape. The eight-shaped vent hole 311 may increase the opening degree and increase the vent amount.
  • FIG. 14 is a partially enlarged perspective view illustrating a configuration of a vent device according to another exemplary embodiment of the present disclosure
  • FIG. 15 is a cross-sectional view taken along the line XV-VV of FIG. 14.
  • one end 431a of the tether 431 constituting the vent regulator 430 is connected to the rear outer surface of the vent hole 411 through the sewing line S3.
  • the other end 431c of the tether 431 is inserted into the airbag cushion 410 through the vent hole 411, and the tether guide member 414 and the airbag cushion 410 provided in front of the vent hole 411. Passed between the inner surface of the airbag cushion 410 is drawn out in front. The other end 431c of the drawn tether 431 is constrained to the front surface of the airbag cushion 410.
  • the other end 431c of the tether 431 may be directly connected to the front surface of the airbag cushion 410 or may be connected to a portion adjacent to the inflator via the front surface of the airbag cushion 410.
  • the tether guide member 414 is composed of a strip piece and both ends thereof are coupled to the inner surface of the airbag cushion 410 through the sewing line S4.
  • the tether 431 passes between the portion of the tether guide member 414 corresponding to the sewing line S4 of the tether guide member 414 and the inner surface of the airbag cushion 410.
  • the vent hole 411 is tightened by the tension of the tether 431 to prevent gas leakage. That is, when the tether 431 is tensioned, the portion C to which the tether guide member 414 is connected is moved to the rear R so that the vent hole 411 may be firmly closed to prevent gas leakage.
  • FIG. 16 is a partially enlarged perspective view illustrating a configuration of a vent device according to still another embodiment of the present disclosure
  • FIG. 17 is a cross-sectional view taken along line VII of FIG. 16.
  • one end 531a of the tether 531 is connected to the outer surface of the airbag cushion 510 at the front side of the vent hole 511 through a sewing line S5.
  • the tether guide member 514 is connected to the rear inner surface of the vent hole 511 of the airbag cushion 510 through the sewing line S6.
  • the tether guide member 514 is composed of a strip piece and both ends thereof are coupled to the inner surface of the airbag cushion 510 through the sewing line S6.
  • the tether 531 passes between the inner surface of the airbag cushion 510 and the corresponding portion between the sewing line S6 of the tether guide member 514.
  • the other end 531c of the tether 531 is inserted into the airbag cushion 510 through the vent hole 511, and then inserted between the tether guide member 514 and the inner surface of the airbag cushion 510 and the airbag cushion 510. ) Is withdrawn to the front.
  • the other end 531c of the tether 531 drawn out to the front of the airbag cushion 510 is connected to be constrained to the front of the airbag cushion 510.
  • the gas in the airbag cushion 510 may be prevented from leaking to the outside to properly maintain the internal pressure of the airbag cushion 510.
  • the tether may be configured to variously control the closure of the vent hole by being constrained to the airbag cushion with various routes through various tether guide means (eg, the tether hole or tether guide member described above) as described above.
  • tether guide means eg, the tether hole or tether guide member described above

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  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

A vehicle airbag having a variable vent function is provided. The airbag comprises: an airbag cushion inflated and deployed between a windshield and an instrument panel of a vehicle, and inflated and deployed between the instrument panel and a passenger; a vent hole formed on the airbag cushion so as to discharge inflation fluid from the airbag cushion, and formed to be long in one direction so as to be opened by pressure from the windshield and the instrument panel during the initial deployment of the airbag cushion; and a tether for shielding the vent hole by tension when the airbag cushion is fully deployed.

Description

가변형 벤트 기능을 갖는 에어백Airbag with Adjustable Vent
본 발명은 인스트루먼트 패널 및 승객의 사이에서 전개되는 차량용 전면 착좌 승객을 보호하는 가변형 벤트 기능을 갖는 에어백에 관한 것이다. The present invention relates to an airbag having a variable vent function to protect a front seat passenger for a vehicle deployed between an instrument panel and a passenger.
일반적으로 차량에는 차량 충돌 시 승객을 보호하기 위한 에어백이 장착된다.Typically, vehicles are equipped with airbags to protect passengers in the event of a vehicle crash.
에어백의 에어백 쿠션은 차량 충돌 시 인플레이터로부터 그 내부로 유입되는 가스에 의해 팽창 전개되어 승객을 보호한다. The airbag cushion of the airbag is inflated and deployed by gas flowing into it from the inflator in the event of a vehicle crash to protect the passenger.
통상의 에어백 쿠션의 내부 체적은 일반적인 성인을 보호할 수 있는 전개압을 가지도록 설계된다. The interior volume of a conventional airbag cushion is designed to have a deployment pressure that can protect the average adult.
승객이 일반적인 성인이라 하더라도, 비정상착좌(Out of Position, 이하 “OPP”라 칭함) 상태, 예를 들면, 에어백 쿠션과 승객과의 거리가 지나치게 가까울 경우, 예를 들면 승객이 시트를 당겨서 앉았거나 시트의 전방에 치우쳐서 앉았을 경우에 승객은 에어백 쿠션의 지나친 초기 전개압에 의해 오히려 상해를 입을 수 있다. Even if the passenger is a normal adult, the Out of Position (“OPP”) condition, for example, if the distance between the airbag cushion and the passenger is too close, for example, the passenger has pulled the seat or When sitting in front of the passengers, the passenger may be injured by the excessive initial deployment pressure of the airbag cushion.
따라서, 에어백 쿠션은 차량의 조건, 예를 들면 차량 속도, 승객의 조건, 예컨대 승객의 체격, 승객의 착좌 위치 등, 또는 차량 및 승객의 두 조건에 따라 어어백 쿠션의 전개압을 조절하는 전개압 조절수단이 필요하게 된다. Thus, the airbag cushion has a deployment pressure that adjusts the deployment pressure of the airbag cushion according to the vehicle's conditions, such as the vehicle speed, the passenger's condition, such as the physique of the passenger, the seating position of the passenger, or both conditions of the vehicle and the passenger. An adjustment means is necessary.
승객이 팽창된 에어백 쿠션에 접촉할 경우, 승객을 부드럽게 수용하도록 에어백 쿠션 상에 벤트홀을 제공하고, 벤트홀을 통하여 에어백 쿠션의 내부로부터 에어백의 외부로 가스가 배출되는 것을 허용하는 에어백이 널리 알려져 있다. When a passenger touches an inflated airbag cushion, airbags are widely known that provide a vent hole on the airbag cushion to gently accommodate the passenger and allow gas to be vented from the inside of the airbag cushion to the outside of the airbag through the venthole. have.
또한, 미국 연방 고속도로교통안전국(NHTAS: National Highway Traffic Safety Administration)에서는 여성더미(AF05더미)와 남성더미(AM50더미), 6세 이하의 어린이 더미 등을 이용하여 에어백의 성능을 평가하고 있다. In addition, the National Highway Traffic Safety Administration (NHTAS) assesses the performance of airbags using piles of women (AF05), piles of men (AM50), and children's dummy under 6 years of age.
위와 같이 다양한 사이즈 또는 다양한 착좌 상태의 승객을 보호하기 위해서 종래에는 다양한 형태의 벤트홀이 복수개로 구비된 에어백이 알려져 있다. 예컨대, 상시 개방된 벤트홀 (이하 “노멀 벤트홀”이라 칭함) 및 에어백 전개 상태에 따라 벤트홀이 선택적으로 개폐되는 벤트홀(이하 “안전 벤트홀”이라 칭함)등이 에어백 쿠션에 구비된 것이 알려져 있다.As described above, in order to protect passengers of various sizes or various seating states, airbags having a plurality of vent holes of various types are known. For example, the airbag cushion is provided with a normally open vent hole (hereinafter referred to as a "normal vent hole") and a vent hole (hereinafter referred to as a "safe vent hole") to selectively open and close the vent hole according to the airbag deployment state. Known.
(선행기술문헌)(Prior art document)
(특허문헌)(Patent literature)
US 8,070,183US 8,070,183
US 2012/0306187US 2012/0306187
본 발명의 목적은 에어백 쿠션의 노멀 벤트홀 및 안전 벤트홀의 기능을 통합하면서, 차량 및/또는 승객의 상태에 따라 에어백 쿠션의 강도를 적절히 조절할 수 있는 가변형 벤트 기능을 갖는 에어백을 제공하는 것이다. SUMMARY OF THE INVENTION An object of the present invention is to provide an airbag having a variable vent function capable of appropriately adjusting the strength of the airbag cushion according to the condition of the vehicle and / or passenger while integrating the functions of the normal vent hole and the safety vent hole of the airbag cushion.
본 발명의 일 실시 예를 따르면, 차량의 윈드 실드와 인스트루먼트 패널 사이에서 팽창 전개하고, 상기 인스트루먼트 패널 및 승객 사이에서 팽창 전개하는 에어백 쿠션; 상기 에어백 쿠션으로부터 팽창 유체를 배출하도록 상기 에어백 쿠션에 형성되고, 상기 에어백 쿠션의 초기 전개 시 상기 윈드 실드와 상기 인스트루먼트 패널로부터의 가압력에 의해 개방되도록 일 방향으로 길게 형성된 벤트홀; 및 상기 에어백 쿠션의 만개 시, 인장에 의해 상기 벤트홀을 차폐하는 테더를 포함하는 가변 벤트 기능을 갖는 에어백이 제공된다. According to an embodiment of the present invention, an airbag cushion that expands and deploys between a wind shield and an instrument panel of a vehicle, and expands and deploys between an instrument panel and a passenger; A vent hole formed in the airbag cushion to discharge the inflation fluid from the airbag cushion, the vent hole being elongated in one direction so as to be opened by the pressing force from the wind shield and the instrument panel during initial deployment of the airbag cushion; And when the airbag cushion is in full bloom, there is provided an airbag having a variable vent function including a tether that shields the vent hole by tension.
상기 벤트홀은 상기 윈드 실드 및 상기 인스트루먼트 패널이 이루는 각을 2등분 하는 선에 대하여 직교하는 수직선으로부터 +45° ~ -45° 범위 내의 각도로 형성될 수 있다. The vent hole may be formed at an angle within a range of + 45 ° to -45 ° from a perpendicular line perpendicular to a line bisecting an angle formed by the wind shield and the instrument panel.
상기 벤트홀은 일자형, 타원형, 또는 8자형으로 형성될 수 있다.The vent hole may be formed in a straight, elliptical, or eight shape.
상기 벤트홀은 6세 이하의 어린이가 상기 초기 팽창된 에어백 쿠션에 충돌 시, 상기 6세 이하의 어린이의 머리 앞에 위치하도록 배치될 수 있다.The vent hole may be disposed to be positioned in front of the head of the child 6 years or younger when a child 6 years or younger collides with the initial inflated airbag cushion.
상기 벤트홀의 전방측에 상기 테더의 이동을 가이드하는 테더 가이드 수단이 형성되고, 상기 테더의 일단은 상기 벤트홀의 후방측에서 상기 에어백 쿠션의 외면에 연결되고, 상기 테더의 타단은 상기 테더 가이드 수단을 통하여 상기 벤트홀의 전방으로 가이드 된 후 상기 에어백 쿠션의 전면에 구속될 수 있다. Tether guide means for guiding the movement of the tether is formed at the front side of the vent hole, one end of the tether is connected to the outer surface of the airbag cushion at the rear side of the vent hole, the other end of the tether is the tether guide means After being guided to the front of the vent hole through it can be restrained on the front of the airbag cushion.
상기 테더 가이드 수단은 테더홀 또는 테더 가이드 부재를 포함할 수 있다.The tether guide means may include a tether hole or a tether guide member.
상기 테더의 일단은 상기 벤트홀의 전방측에서 상기 에어백 쿠션의 외면에 연결되고, 상기 벤트홀의 후방측에는 상기 테더의 이동을 가이드하는 테더 가이드 수단이 형성되고, 상기 테더의 타단은 상기 테더 가이드 수단을 통하여 상기 벤트홀의 후방으로 가이드 되고 상기 에어백 쿠션의 전면을 향하여 절곡된 후 상기 에어백 쿠션의 전면에 구속될 수 있다. One end of the tether is connected to the outer surface of the airbag cushion at the front side of the vent hole, and a tether guide means for guiding the movement of the tether is formed at the rear side of the vent hole, and the other end of the tether is provided through the tether guide means. It may be guided to the rear of the vent hole and bent toward the front of the airbag cushion and then restrained on the front of the airbag cushion.
상기 테더 가이드 수단은 테더홀 또는 테더 가이드 부재를 포함할 수 있다.The tether guide means may include a tether hole or a tether guide member.
본 발명의 일 실시 예를 따르면, 에어백은 에어백 쿠션의 팽창, 전개에 따라 이동하는 테더 및 테더의 인장에 의해 에어백 쿠션에 형성된 벤트홀을 차폐하는 벤트 플레이를 포함하여, 차량 및/또는 승객의 조건에 따라 벤트홀을 차폐하는 것을 가변적으로 조정할 수 있다. 이러한 구성에 의하여 노멀 벤트홀 및 안전 벤트홀을 통합하여 벤트 장치의 구성을 단순화 할 수 있다. According to an embodiment of the present invention, an airbag includes a tether moving as the airbag cushion is inflated and deployed, and a vent play for shielding a vent hole formed in the airbag cushion by the tension of the tether. The shielding of the vent hole can be variably adjusted according to the above. By this configuration, the configuration of the vent device can be simplified by integrating the normal vent hole and the safety vent hole.
본 발명의 일 실시 예를 따르면 벤트홀을 에어백 쿠션의 종방향을 따라 길게 형성하여 에어백 쿠션의 초기 전개 시 에어백 쿠션에 승객이 충돌하는 경우 벤트홀의 개방을 크게 할 수 있다. According to an embodiment of the present invention, the vent hole may be formed long along the longitudinal direction of the airbag cushion to increase the opening of the vent hole when a passenger collides with the airbag cushion during initial deployment of the airbag cushion.
본 발명의 일 실시 예를 따르면, 에어백 쿠션의 전개 시 인장되는 테더에 의해 벤트홀을 구속함에 있어 테더의 루트를 다양하게 하여 벤트홀 차폐를 효과적으로 할 수 있다. According to an embodiment of the present invention, in restricting the vent hole by the tether being tensioned when the airbag cushion is deployed, the root of the tether may be varied to effectively shield the vent hole.
도 1은 본 발명의 일 실시 예를 따른 차랑용 에어백 장치의 구성을 도시한 측면도이다. 1 is a side view showing the configuration of a vehicle airbag apparatus according to an embodiment of the present invention.
도 2는 본 발명의 벤트 장치의 구성을 도시한 일부 확대 측면도이다.2 is a partially enlarged side view showing the configuration of the vent device of the present invention.
도 3은 본 발명의 벤트 장치의 구성을 도시한 일부 확대 사시도이다. 3 is a partially enlarged perspective view showing the configuration of the vent device of the present invention.
도 4는 도 3의 선 Ⅳ-Ⅳ를 따라 취해진 단면도이다.4 is a cross-sectional view taken along the line IV-IV of FIG. 3.
도 5는 본 발명의 에어백 쿠션의 초기 전개 상태를 도시한 측면도이다. 5 is a side view showing an initial deployment state of the airbag cushion of the present invention.
도 6은 본 발명의 에어백 쿠션의 초기 전개 상태를 도시한 횡단면도이다.Fig. 6 is a cross sectional view showing an initial deployed state of the airbag cushion of the present invention.
도 7은 본 발명의 에어백 쿠션의 만개 상태를 도시한 측면도이다. Figure 7 is a side view showing a full bloom of the airbag cushion of the present invention.
도 8은 본 발명의 에어백 쿠션의 만개 상태를 도시한 횡단면도이다. 8 is a cross-sectional view showing a state of full bloom of the airbag cushion of the present invention.
도 9은 본 발명의 만개된 에어백 쿠션에 승객이 충돌한 상태를 도시한 측면이다.FIG. 9 is a side view illustrating a state where a passenger collides with the airbag cushion in full bloom of the present invention. FIG.
도 10은 본 발명의 만개된 에어백 쿠션에 승객이 충돌한 상태를 도시한 횡단면도이다. 10 is a cross-sectional view showing a state where a passenger collided with the airbag cushion in full bloom of the present invention.
도 11은 본 발명의 다른 실시 예를 따른 에어백의 구성을 도시한 횡단면도이다.11 is a cross-sectional view showing the configuration of an airbag according to another embodiment of the present invention.
도 12는 본 발명의 다른 실시 예를 따른 벤트 장치의 구성을 확대해서 도시한 일부 확대 사시도이다. 12 is a partially enlarged perspective view illustrating an enlarged configuration of a vent device according to another exemplary embodiment of the present disclosure.
도 13은 본 발명의 다른 벤트홀의 구성을 도시한 일부 확대 사시도이다. 13 is a partially enlarged perspective view showing the configuration of another vent hole of the present invention.
도 14는 본 발명의 다른 실시 예를 따른 벤트 장치의 구성을 도시한 일부 확대 사시도이다. 14 is a partially enlarged perspective view illustrating a configuration of a vent device according to another exemplary embodiment of the present disclosure.
도 15는 도 14의 선 ⅩⅤ-ⅩⅤ를 따라 취해진 단면도이다, 15 is a cross-sectional view taken along the line XV-XV of FIG. 14,
도 16은 본 발명의 또 다른 실시 예를 따른 벤트 장치의 구성을 도시한 일부 확대 사시도이다.16 is a partially enlarged perspective view illustrating a configuration of a vent device according to still another embodiment of the present invention.
도 17은 도 16의 선ⅩⅦ-ⅩⅦ을 따라 취해진 단면도이다. 17 is a cross-sectional view taken along the line VII-VII of FIG.
이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 더욱 상세히 설명하기로 한다. 그러나 본 발명은 이하에서 개시되는 실시 예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시 예들은 본 발명의 개시가 완전하도록 하며, 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are intended to complete the disclosure of the present invention and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you.
도면에서, 승객을 향하는 방향을 “F”, 에어백 쿠션이 인플레이터와 연결된 측을 향하는 방향을 “R”, 에어백 쿠션의 내측을 “I”, 에어백 쿠션의 외측을 “O”로 표시한다. In the figure, the direction toward the passenger is indicated by “F”, the direction toward the side where the airbag cushion is connected to the inflator is indicated by “R”, the inside of the airbag cushion by “I”, and the outside of the airbag cushion by “O”.
도 1은 본 발명의 일 실시 예를 따라 팽창된 에어백 쿠션을 갖는 차량의 내부를 도시한 측면도이다. 1 is a side view showing the inside of a vehicle having an inflated airbag cushion according to an embodiment of the present invention.
도 1을 참조하면, 승객(O)을 보호하는 에어백 장치(1)는 팽창 가능한 에어백(100)을 포함한다. 도 1에 도시된 구성에서, 에어백(100)은 차량의 승객측 좌석의 승객을 보호하는 승객 전면 에어백이다. Referring to FIG. 1, the airbag apparatus 1 for protecting a passenger O includes an inflatable airbag 100. In the configuration shown in FIG. 1, the airbag 100 is a passenger front airbag that protects a passenger in the passenger side seat of the vehicle.
에어백(100)은 인플레이터(3) 및 하우징(5)을 포함하는 에어백 모듈(10)의 일 부분 일 수 있다. 에어백(100)은 하우징(5)에 절첩 상태로 수용된다. 에어백 모듈(10)은 차량의 인스트루먼트 패널(7)에 장착된다. The airbag 100 may be part of an airbag module 10 that includes an inflator 3 and a housing 5. The airbag 100 is accommodated in the folded state in the housing 5. The airbag module 10 is mounted to the instrument panel 7 of the vehicle.
에어백(100)은 인스트루먼트 패널(7) 및 승객(O)의 사이에서 팽창 가능한 에어백 쿠션(110)을 포함한다. 인플레이터(3)는 에어백 쿠션(110)이 팽창 상태로 전개되도록 에어백 쿠션(110)에 팽창 유체(이하 “가스”라 칭함)를 공급하도록 작동한다. 인플레이터(3)는 축적된 가스, 고체 추진제(solid propellant), 증폭제(augment), 또는 혼합물 등에 의해 동작될 수 있다. The airbag 100 includes an airbag cushion 110 that is inflatable between the instrument panel 7 and the passenger O. The inflator 3 operates to supply inflation fluid (hereinafter referred to as "gas") to the airbag cushion 110 such that the airbag cushion 110 is deployed in an inflated state. The inflator 3 can be operated by accumulated gas, solid propellant, augment, mixture or the like.
에어백 장치(1)는 차량 충돌 또는 차량 충돌 직전과 같이 에어백 쿠션(110) 팽창을 위한 경우를 감지하는 센서(9)를 더 포함할 수 있다. 인플레이터(3)는 센서(9)에 전기적으로 연결된다.The airbag device 1 may further include a sensor 9 that detects a case for inflation of the airbag cushion 110, such as a vehicle crash or just before the vehicle crash. The inflator 3 is electrically connected to the sensor 9.
에어백 쿠션(110)은 모든 적절한 재료, 예컨대 나일론으로 만들어질 수 있으며, 모든 적절한 방식으로 만들어질 수 있다. 예를 들면, 에어백 쿠션(110)은 하나 이상의 패널 또는 조각 재료를 포함할 수 있다. 하나 이상의 조각 또는 패널이 사용된 경우, 재봉, 초음파 웰딩, 열접착 또는 접착제등 다양한 수단에 의해 에어백 쿠션(110)을 형성하기 위하여 조각 또는 패널은 서로 연결될 수 있다. 에어백 쿠션(110)은 가스 기밀 구성을 가질 수 있다. 예를 들면, 에어백 쿠션은 가스 불침투성 우레탄, 또는 가스 불침투성 필름과 같은 재질로 적층된 재질로 코팅될 수 있다.The airbag cushion 110 can be made of any suitable material, such as nylon, and can be made in any suitable manner. For example, the airbag cushion 110 may include one or more panel or piece materials. If more than one piece or panel is used, the pieces or panels may be connected to each other to form the airbag cushion 110 by various means such as sewing, ultrasonic welding, heat bonding or adhesives. The airbag cushion 110 may have a gas tight configuration. For example, the airbag cushion may be coated with a material laminated with a material such as a gas impermeable urethane or a gas impermeable film.
차량 충돌과 같이 에어백 쿠션(110)의 팽창을 요구하는 경우가 일어남을 감지하는 경우, 센서(9)는 인플레이터(3)에 신호를 전달한다. 센서(9)로부터 신호를 받은 경우, 인플레이터(3)는 작동하여 에어백 쿠션(110)으로 가스를 제공한다. 팽창하는 에어백 쿠션(110)은 하우징(5) 내에 절첩된 상태로부터 도 1에 도시된 바와 같은 전개 상태로 팽창한다. When the sensor 9 detects that the airbag cushion 110 needs to be inflated, such as a vehicle crash, the sensor 9 transmits a signal to the inflator 3. Upon receiving a signal from the sensor 9, the inflator 3 operates to provide gas to the airbag cushion 110. The inflating airbag cushion 110 expands from the folded state in the housing 5 to the deployed state as shown in FIG. 1.
에어백 쿠션(110)은 차량의 부품, 예를 들면 인스트루먼트 패널(7) 또는 스티어링 휠(미도시)과 함께 충격으로부터 승객(O)을 보호한다. The airbag cushion 110 protects the passenger O from impacts in conjunction with parts of the vehicle, such as the instrument panel 7 or steering wheel (not shown).
에어백 쿠션(110)은 승객 보호가 요구되는 경우에 응답하여 전개된 경우, 승객에 의해 에어백 쿠션(110)에 가해지는 충격력을 흡수하여 승객(O)을 보호하도록 구성된다. The airbag cushion 110 is configured to absorb the impact force exerted on the airbag cushion 110 by the passenger to protect the passenger O when deployed in response to the need for passenger protection.
본 발명을 따르면, 에어백(100)은 차량의 상태, 승객의 상태, 차량 및 승객의 두 상태에 따라 응답하여 에어백 쿠션의 압력(pressurization), 전개, 팽창 조절을 제어하도록 구성된다. 이러한 특징들은 차량 및 승객의 상태에 응답하여 수동적으로 동작 가능하다. 이를 위하여 발명을 따르면, 에어백(100)은 벤트 장치(V)를 포함한다. 벤트 장치(V)는 에어백 쿠션(110)의 일측에 형성된 벤트홀(111)과, 차량 및 승객의 상태에 따라 벤트홀(111)의 개폐 정도를 조절하는 벤트 조절기(130, vent adjuster)를 포함한다. 벤트 조절기(130)는 일단이 벤트홀(111)의 주변에 연결되고, 타단이 에어백 쿠션(110)의 전면(112)에 구속되는 테더(131)를 포함한다. According to the present invention, the airbag 100 is configured to control the pressurization, deployment, and inflation adjustment of the airbag cushion in response to the state of the vehicle, the state of the passenger, the two states of the vehicle and the passenger. These features are passively operable in response to vehicle and passenger status. According to the invention for this purpose, the airbag 100 comprises a vent device (V). The vent device V includes a vent hole 111 formed at one side of the airbag cushion 110 and a vent adjuster 130 for adjusting the opening and closing degree of the vent hole 111 according to the state of the vehicle and the passenger. do. The vent regulator 130 includes a tether 131, one end of which is connected to the periphery of the vent hole 111 and the other end of which is constrained to the front surface 112 of the airbag cushion 110.
도 1에서, 에어백 쿠션(110)이 완전히 전개된 경우(실선 표시 상태), 테더(133)는 인장되고, 테더(131)의 인장력에 의해 벤트홀(111)이 차폐된다.In FIG. 1, when the airbag cushion 110 is fully deployed (solid line display state), the tether 133 is tensioned and the vent hole 111 is shielded by the tension force of the tether 131.
한편, 에어백 쿠션(110)의 초기 전개 시 (점선 표시 상태), 인장력이 가해지지 않는 테더(131)에 의해 벤트홀(111)은 구속되지 않는다. 에어백 쿠션(110)의 초기 전개 시, 에어백 쿠션(110)은 윈드 실드(W)와 인스트루먼트 패널(7) 사이로 팽창 전개되고, 윈드 실드(W) 및 인스트루먼트 패널(7)에 의해 가압되어 벤트홀(111)이 개방된다. On the other hand, during the initial deployment of the airbag cushion 110 (dotted line display state), the vent hole 111 is not restrained by the tether 131 to which no tension force is applied. In the initial deployment of the airbag cushion 110, the airbag cushion 110 is inflated and deployed between the wind shield W and the instrument panel 7, and is pressurized by the wind shield W and the instrument panel 7 to provide a vent hole ( 111 is opened.
도 1의 실시 예에서, 에어백(100)은 테더(131), 벤트홀(111)의 형상, 벤트홀(111)의 위치의 조합에 의해 벤트홀(111)을 차폐하도록 구성되어 에어백 쿠션(110)으로 충돌하는 승객에 따라 에어백 쿠션(110)의 팽창, 전개, 압력을 조정할 수 있다. 이러한 구성은 차량 및/또는 승객의 상태, 예컨대, 승객 사이즈/무게, 승객의 시트벨트 체결 유무, 승객의 착좌 자세(전방/후방, 직립/또는 기울어짐), 차량의 속도에 따라 승객(O)에 접촉하는 에어백 쿠션(110)의 강도를 조절할 수 있다. In the embodiment of FIG. 1, the airbag 100 is configured to shield the vent hole 111 by a combination of the tether 131, the shape of the vent hole 111, and the position of the vent hole 111. Inflation, deployment and pressure of the airbag cushion 110 may be adjusted according to the passenger colliding with Such a configuration may depend on the vehicle and / or passenger's condition, such as passenger size / weight, whether or not the passenger seatbelt is engaged, the passenger's seating position (front / rear, upright / or tilted), and the speed of the vehicle. The strength of the airbag cushion 110 in contact with may be adjusted.
도 2는 본 발명의 벤트 장치의 구성을 확대해서 도시한 확대 측면도이다.2 is an enlarged side view showing an enlarged configuration of the vent device of the present invention.
도 2를 참조하면, 벤트홀(111)은 윈드 실드(W) 및 인스트루먼트 패널(7)이 이루는 각(α°)을 2등분하는 선(D)에 대하여 직교하는 수직선(V)으로부터 +45°~-45° 범위의 각도로 형성된다. Referring to FIG. 2, the vent hole 111 is + 45 ° from a vertical line V orthogonal to a line D that bisects an angle α ° formed by the wind shield W and the instrument panel 7. It is formed at an angle in the range of -45 °.
벤트홀(111)은 일자형(도 1 참조), 타원형(서로 마주하는 호형 내주면을 포함하는 홀 형태, 도 3 참조), 8자형 (도 13 참조) 등 대략 세로로 긴 형상을 갖는 모든 형태를 포함할 수 있다. 이러한 구성으로, 에어백 쿠션(110)의 초기 전개 시, 에어백 쿠션(110)이 윈드 실드(W)와 인스트루먼트 패널(7)로부터의 가압력에 의해 벤트홀(111)이 원활하게 개방될 수 있다(점선 표시 상태). The vent hole 111 may include all shapes having a substantially vertical shape such as a straight line (see FIG. 1), an oval shape (hole shape including an arced inner circumferential surface facing each other, FIG. 3), and an eight-shaped shape (see FIG. 13). can do. With this configuration, during the initial deployment of the airbag cushion 110, the airbag cushion 110 can smoothly open the vent hole 111 by the pressing force from the wind shield W and the instrument panel 7 (dotted line). Display status).
벤트홀(111)은 6세 이하의 어린이(O1)가 에어백 쿠션(110)의 초기 전개 시에 에어백 쿠션(110)에 충돌 시 6세 이하의 어린이(O1)의 두부(H)앞에 위치하도록 배치된다. 벤트홀(111)은 에어백 쿠션(110) 내의 내압을 빠르게 증대시키도록 하면서, 에어백 초기 전개 시, 에어백 쿠션(110)에 승객이 충돌하는 경우 벤트홀(111)이 원활하게 개방되도록 하여 벤트 기능을 수행할 수 있게 한다.The vent hole 111 is disposed such that the child O1 6 years old or younger is positioned in front of the head H of the child O1 6 years old or younger when the airbag cushion 110 collides with the airbag cushion 110 during the initial deployment of the airbag cushion 110. do. Vent hole 111 to quickly increase the internal pressure in the airbag cushion 110, during the initial deployment of the airbag, when the passenger collides with the airbag cushion 110, the vent hole 111 to open smoothly to vent Make it work.
도 3은 본 발명의 벤트 장치의 구성을 도시한 일부 사시도이고, 도 4는 도 3의 선 Ⅳ-Ⅳ를 따른 단면도이다. 3 is a partial perspective view showing the configuration of the vent device of the present invention, Figure 4 is a cross-sectional view along the line IV-IV of FIG.
도 3 및 도 4를 참조하면, 벤트 조절기(130)를 구성하는 테더(131)의 일단(131a)은 재봉 라인(S1)을 통하여 벤트홀(111)의 후방측 외면에 연결된다. 3 and 4, one end 131a of the tether 131 constituting the vent controller 130 is connected to the rear outer surface of the vent hole 111 through the sewing line S1.
테더(131)의 타단(131c)은 벤트홀(111)을 가로 질러 벤트홀(111)의 전방에 형성된 테더홀(114)을 통하여 에어백 쿠션(110)의 내부로 삽입되고, 에어백 쿠션(110)의 전면(112, 도 1참조)에 구속된다. 테더(131)의 타단(131)는 에어백 쿠션(110)의 전면에 직접 연결되거나, 에어백 쿠션(110)의 전면(112)을 경유하여 인플레이터(3)와 이웃하는 부분에 연결될 수 있다. The other end 131c of the tether 131 is inserted into the airbag cushion 110 through the tether hole 114 formed in front of the vent hole 111 across the vent hole 111, and the airbag cushion 110. Is constrained to the front face 112 (see FIG. 1). The other end 131 of the tether 131 may be directly connected to the front surface of the airbag cushion 110 or may be connected to a portion adjacent to the inflator 3 via the front surface 112 of the airbag cushion 110.
다른 실시 예로, 테더(131)는 재봉, 초음파 웰딩, 열접착 또는 접착제에 의해 에어백 쿠션(110)에 연결될 수 있다.In another embodiment, the tether 131 may be connected to the airbag cushion 110 by sewing, ultrasonic welding, heat bonding, or adhesive.
이러한 구성으로, 에어백 쿠션(110)의 팽창 시, 테더(131)의 인장에 의해 테더홀(114)은 조여져 가스 누출을 방지한다. 즉, 테더(131)의 인장 시, 테더홀(114)의 전방 부분(A)이 후방(R)으로 이동되어 벤트홀(111)이 견고하게 폐쇄되어 가스 누출을 방지할 수 있다. In this configuration, when the airbag cushion 110 is inflated, the tether hole 114 is tightened by the tension of the tether 131 to prevent gas leakage. That is, when the tether 131 is tensioned, the front portion A of the tether hole 114 is moved to the rear R so that the vent hole 111 may be firmly closed to prevent gas leakage.
다음은 본 발명의 일 실시 예를 에어백의 동작에 대해서 설명한다. The following describes an operation of the airbag according to an embodiment of the present invention.
도 5는 본 발명의 에어백 쿠션의 초기 전개 상태를 도시한 측면도이고, 도 6은 본 발명의 에어백 쿠션의 초기 전개 상태를 도시한 횡단면도이다.5 is a side view showing an initial deployment state of the airbag cushion of the present invention, Figure 6 is a cross-sectional view showing an initial deployment state of the airbag cushion of the present invention.
도 5 및 도 6을 참조하면, 차량 충돌과 같이 에어백 쿠션(110)의 팽창을 요구하는 경우가 감지되면, 센서(9)는 인플레이터(3)에 신호를 전달한다. 센서(9)로부터 신호를 받은 경우, 인플레이터(3)는 작동하여 에어백 쿠션(110)으로 가스를 제공한다.5 and 6, when it is detected that the airbag cushion 110 needs to be inflated, such as a vehicle crash, the sensor 9 transmits a signal to the inflator 3. Upon receiving a signal from the sensor 9, the inflator 3 operates to provide gas to the airbag cushion 110.
이때, 테더(131)는 인장 없이 느슨한 상태에 있으므로, 벤트홀(111)은 테더(131)에 구속되지 않는다. 따라서, 벤트홀(111)은 폐쇄되어 인플레이터(3)로 부터의 가스가 누출되는 것이 미약하여 상대적으로 에어백 쿠션(110)은 빠르게 팽창한다. At this time, since the tether 131 is in a loose state without tension, the vent hole 111 is not constrained to the tether 131. Therefore, the vent hole 111 is closed and the gas from the inflator 3 is weakly leaked so that the airbag cushion 110 expands relatively quickly.
한편, 에어백 쿠션(110)내에 가스가 어느 정도 공급되어 에어백 쿠션(110)이 초기 팽창되면, 에어백 쿠션(110)은 윈드 실드(W) 및 인스트루먼트 패널(7)의 사이에서 팽창 전개되고, 윈드 실드(W) 및 인스트루먼트 패널(7)로부터 가압된다. On the other hand, when the gas is supplied to the airbag cushion 110 to some extent and the airbag cushion 110 is initially inflated, the airbag cushion 110 is expanded and deployed between the windshield W and the instrument panel 7, and the windshield And W from the instrument panel 7.
이때, 벤트홀(111)은 윈드 실드(W)과 인스트루먼트 패널(7)이 이루는 각도(α°)를 2등분 하는 선(D)에 대하여 직교하는 수직선(V)으로부터 +45°~ -45°범위에서 일 방향이 길게 형성되어, 윈드 실드(W)와 인스트루먼트 패널(7)의 가압력에 의해 원활하게 개방된다(도 2 참조). At this time, the vent hole 111 is + 45 ° to -45 ° from a vertical line V orthogonal to a line D that bisects the angle α ° formed by the wind shield W and the instrument panel 7. One direction is formed long in the range, and it opens smoothly by the pressing force of the wind shield W and the instrument panel 7 (refer FIG. 2).
따라서, 에어백 쿠션(10)내의 가스가 원활하게 개방된 벤트홀(111)을 통하여 배출될 수 있다. 이 경우, 예를 들면 OPP 승객, 어린이 또는 체구가 작은 성인 승객 등에 대하여 에어백 전개로 인한 상해를 최소화할 수 있다. Therefore, the gas in the airbag cushion 10 may be discharged through the vent hole 111 that is smoothly opened. In this case, injuries due to the deployment of airbags can be minimized, for example, for OPP passengers, children, or small adult passengers.
즉, 에어백 쿠션(110)의 초기 전개 시, OPP 승객, 어린이 또는 체구가 작은 성인 승객 등이 에어백 쿠션(110)에 부딪힐 경우, 완전히 개방된 벤트홀(111)을 통하여 상대적으로 많은 양의 가스가 에어백 쿠션(110)의 외부로 배출되어, 에어백 쿠션(110)의 강도가 적절히 조절된다. 따라서, 에어백 쿠션(110)의 초기 전개 시, 에어백 쿠션(110)의 팽창력에 의해 승객이 상해를 입는 것을 방지한다. That is, during the initial deployment of the airbag cushion 110, when an OPP passenger, a child, or an adult passenger having a small body collides with the airbag cushion 110, a relatively large amount of gas through the fully opened vent hole 111 Is discharged to the outside of the airbag cushion 110, the strength of the airbag cushion 110 is appropriately adjusted. Therefore, during the initial deployment of the airbag cushion 110, the passenger is not injured by the inflation force of the airbag cushion 110.
도 7은 본 발명의 에어백 쿠션의 만개 상태를 도시한 측면도이고, 도 8은 본 발명의 에어백 쿠션의 만개 상태를 도시한 횡단면도이다. 7 is a side view showing a full bloom of the airbag cushion of the present invention, Figure 8 is a cross-sectional view showing a full bloom of the airbag cushion of the present invention.
도 7 및 도 8을 참조하면, 에어백 쿠션(110)이 완전히 팽창 전개한 경우, 테더(131)은 완전히 인장된다. 이 경우, 테더(131)의 타단(131c)이 에어백 쿠션(110)의 전면(112)에 의해 당겨짐에 따라 벤트홀(111)의 전방측 부분(A)이 후측 방향(R)으로 이동되어 벤트홀(111)이 완전히 폐쇄된다(도 3,4 참조). 따라서, 에어백 쿠션(110) 내의 가스가 외부로 누출되는 것이 방지되어 에어백 쿠션(110)은 적절한 내압을 유지한다. 7 and 8, when the airbag cushion 110 is fully inflated and deployed, the tether 131 is fully tensioned. In this case, as the other end 131c of the tether 131 is pulled by the front surface 112 of the airbag cushion 110, the front portion A of the vent hole 111 is moved in the rearward direction R to vent The hole 111 is completely closed (see FIGS. 3 and 4). Accordingly, the gas in the airbag cushion 110 is prevented from leaking to the outside so that the airbag cushion 110 maintains an appropriate internal pressure.
도 9은 본 발명의 만개된 에어백 쿠션에 승객이 충돌한 상태를 도시한 측면이고, 도 10은 본 발명의 만개된 에어백 쿠션에 승객이 충돌한 상태를 도시한 횡단면도이다. FIG. 9 is a side view illustrating a state in which a passenger collides with the airbag cushion in full bloom of the present invention, and FIG. 10 is a cross-sectional view illustrating a state in which a passenger collides with the airbag cushion in full bloom of the present invention.
도 9 및 도 10을 참조하면, 완전히 팽창된 에어백 쿠션(110)의 전면에 승객(O)이 충돌함에 따라, 테더(131)가 이동되기 시작하여 느슨해 진다. 그 결과, 벤트홀(111)을 통하여 에어백 쿠션(110)내의 가스가 급속히 빠져나가면서, 벤트홀(111)을 가로 지르는 테더(131)의 일부분을 에어백 쿠션(110)의 외부로 밀린다. 그리하여, 벤트홀(111)은 완전히 개방되어 에어백 쿠션(110)내의 가스가 완전히 개방된 벤트홀(111)을 통하여 원활하게 배출된다. 이러한 벤트 동작에 의하여, 팽창된 에어백 쿠션(110)에 승객(O)이 충돌하는 경우, 에어백 쿠션(110) 내의 가스가 적절히 배출되어 전개된 에어백 쿠션(110)의 강도를 적절히 조절할 수 있다. 그리하여 승객(O)이 팽창하는 에어백 쿠션(110)에 의해 2차적으로 상해를 입는 것을 방지할 수 있다. 9 and 10, as the passenger O collides in front of the fully inflated airbag cushion 110, the tether 131 starts to move and becomes loose. As a result, while the gas in the airbag cushion 110 rapidly exits through the vent hole 111, a portion of the tether 131 crossing the vent hole 111 is pushed out of the airbag cushion 110. Thus, the vent hole 111 is completely open and the gas in the airbag cushion 110 is smoothly discharged through the vent hole 111 in which the gas is completely opened. By the vent operation, when the passenger O collides with the inflated airbag cushion 110, the gas in the airbag cushion 110 may be properly discharged to properly adjust the strength of the deployed airbag cushion 110. Thus, it is possible to prevent the passenger O from being secondarily injured by the inflating airbag cushion 110.
본 발명을 따르면, 상술한 벤트 동작에 있어서, 에어백 쿠션(110)에 충돌하는 승객(O)의 사이즈/무게에 따라 테더(131)가 이동하는 정도가 변경되므로, 별도의 전기적 제어 장치 없이도 승객(O)과의 접촉에 의해 벤트홀(111)의 개방 정도가 조절될 수 있다. According to the present invention, since the degree of movement of the tether 131 is changed according to the size / weight of the passenger O colliding with the airbag cushion 110 in the above-described vent operation, the passenger ( The opening degree of the vent hole 111 may be adjusted by contact with O).
에어백 쿠션(110)의 전면에 접촉하는 테더(131)의 위치는 다양한 위치로 가변될 수 있다. 이러한 구성에 의하여 승객(O)으로부터 테더(131)에 적용되는 충격력이 가변적으로 적용되어 테더(131)의 느슨함이 조절되어 벤트홀(111)의 개방을 조절할 수 있다.The position of the tether 131 in contact with the front surface of the airbag cushion 110 may be changed to various positions. By such a configuration, the impact force applied to the tether 131 from the passenger O is variably applied, so that the looseness of the tether 131 is adjusted to control the opening of the vent hole 111.
다음은 본 발명의 다른 실시 예를 따른 에어백 장치의 동작을 설명한다. The following describes the operation of the airbag apparatus according to another embodiment of the present invention.
본 발명의 다른 실시 예에서는 테더(231)의 결합 방식을 제외한 나머지 구성은 위에서 언급된 실시 예와 실질적으로 동일하다. 따라서, 이하에서, 위에서 언급된 동일한 구성요소에 관한 설명은 생략하고, 테더(231)의 연결 구조를 주로 설명한다. In another embodiment of the present invention except for the coupling method of the tether 231, the configuration is substantially the same as the above-mentioned embodiment. Therefore, hereinafter, the description of the same components mentioned above will be omitted, and mainly the connection structure of the tether 231 will be described.
도 11은 본 발명의 다른 실시 예를 따른 에어백의 구성을 도시한 횡단면도이고, 도 12는 본 발명의 다른 실시 예를 따른 벤트 장치의 구성을 확대해서 도시한 일부 확대 사시도이다. 11 is a cross-sectional view showing the configuration of an airbag according to another embodiment of the present invention, Figure 12 is a partially enlarged perspective view showing an enlarged configuration of the vent device according to another embodiment of the present invention.
도 11 및 도 12를 참조하면, 테더(231)의 일단(231a)은 벤트홀(211)의 전방측에서 에어백 쿠션(210)의 외면에 재봉 라인(S2)을 통하여 연결된다. 11 and 12, one end 231a of the tether 231 is connected to the outer surface of the airbag cushion 210 at the front side of the vent hole 211 through a sewing line S2.
에어백 쿠션(210)의 벤트홀(211)의 후방측에는 테더홀(214)이 형성된다. The tether hole 214 is formed at the rear side of the vent hole 211 of the airbag cushion 210.
테더(231)의 타단(231c)은 테더홀(214)을 통하여 에어백 쿠션(210)의 내부로 삽입되고, 에어백 쿠션(210)의 전면을 향하여 절곡된 후 에어백 쿠션(210)의 전면에 구속되도록 연결된다. The other end 231c of the tether 231 is inserted into the airbag cushion 210 through the tether hole 214 and is bent toward the front of the airbag cushion 210 and then restrained on the front of the airbag cushion 210. Connected.
이러한 구성으로, 에어백 쿠션(210)의 팽창 시, 테더(231)의 인장에 의해 벤트홀(211)의 전방 부분(B), 즉, 테더(231)의 일단(231a)이 재봉 라인(S2)에 의해 연결된 부분(B)이 후방(R )으로 당겨진다. With this configuration, when the airbag cushion 210 is inflated, the front portion B of the vent hole 211, that is, the one end 231a of the tether 231 is pulled by the tension of the tether 231, and thus the sewing line S2. The connected portion B is pulled rearward by R.
에어백 쿠션(210)이 완전히 팽창된 경우, 완전히 인장된 테더(231)에 의해 후방 부분(B)은 전방(F)으로 더욱 세게 당겨져 벤트홀(211)은 견고하게 차폐된다.When the airbag cushion 210 is fully inflated, the rear portion B is pulled harder to the front F by the fully tensioned tether 231 so that the vent hole 211 is tightly shielded.
따라서, 에어백 쿠션(210) 내의 가스가 외부로 누출되는 것을 방지하여 에어백 쿠션(210)의 내압을 적절히 유지할 수 있도록 한다. Therefore, the gas in the airbag cushion 210 may be prevented from leaking to the outside to properly maintain the internal pressure of the airbag cushion 210.
테더는 상술한 바와 같이 다양한 루트로 에어백 쿠션에 구속되어 벤트홀의 폐쇄를 다양하게 콘트롤 하도록 구성될 수 있다. The tether may be configured to variously control the closure of the vent hole by being constrained to the airbag cushion with various routes as described above.
상술한 테더홀(114,214)의 주위는 테더(131,231)의 당김력 또는 에어백 쿠션(110,210)의 팽창력에 의해 테더홀(114,214)의 양 끝단이 찢어지는 것을 방지하도록 재봉 라인이 형성될 수 있다. 따른 실시 예로, 테더홀(114,214)의 주위에 별도의 보강 부재를 중첩시키고, 보강 부재를 테더홀(114,214)의 주위를 따라 형성되는 재봉 라인을 통하여 에어백 쿠션(110,210)에 결합하는 방식으로 테더홀(114,214)의 찢어짐을 방지할 수 있다. The periphery of the above-mentioned tether holes 114 and 214 may be formed with a sewing line to prevent both ends of the tether holes 114 and 214 from being torn due to the pulling force of the tethers 131 and 231 or the expansion force of the airbag cushions 110 and 210. According to an exemplary embodiment, a separate reinforcing member is overlapped around the tether holes 114 and 214, and the reinforcing member is coupled to the airbag cushions 110 and 210 through a sewing line formed along the periphery of the tether holes 114 and 214. The tearing of the 114 and 214 can be prevented.
도 13은 본 발명의 다른 벤트홀의 구성을 도시한 일부 확대 사시도이다. 13 is a partially enlarged perspective view showing the configuration of another vent hole of the present invention.
벤트홀(311)은 두 개의 원형홀부(311a)와 원형홀부(311a)의 사이에 구비된 일자형의 슬릿홀부(311b)를 포함한다. 이러한 구성에 의해 벤트홀(311)은 대략 8자형으로 형성된다. 8자형의 벤트홀(311)은 개방 정도를 증대시키고 벤트량을 증대 시킬 수 있다. 1The vent hole 311 includes a linear slit hole portion 311b provided between two circular hole portions 311a and the circular hole portion 311a. By such a configuration, the vent hole 311 is formed in an approximately eight shape. The eight-shaped vent hole 311 may increase the opening degree and increase the vent amount. One
도 14는 본 발명의 다른 실시 예를 따른 벤트 장치의 구성을 도시한 일부 확대 사시도이고, 도 15는 도 14의 선 ⅩⅤ-ⅩⅤ를 따라 취해진 단면도이다, 14 is a partially enlarged perspective view illustrating a configuration of a vent device according to another exemplary embodiment of the present disclosure, and FIG. 15 is a cross-sectional view taken along the line XV-VV of FIG. 14.
도 14 및 도 15를 참조하면, 벤트 조절기(430)를 구성하는 테더(431)의 일단(431a)은 재봉 라인(S3)을 통하여 벤트홀(411)의 후방측 외면에 연결된다. 14 and 15, one end 431a of the tether 431 constituting the vent regulator 430 is connected to the rear outer surface of the vent hole 411 through the sewing line S3.
테더(431)의 타단(431c)은 벤트홀(411)을 통하여 에어백 쿠션(410)의 내부로 삽입되고, 벤트홀(411)의 전방에 구비된 테더 가이드 부재(414)와 에어백 쿠션(410)의 내면 사이를 통과하여 에어백 쿠션(410)의 전방으로 인출된다. 인출된 테더(431)의 타단(431c)는 에어백 쿠션(410)의 전면에 구속된다. 테더(431)의 타단(431c)은 에어백 쿠션(410)의 전면에 직접 연결되거나, 에어백 쿠션(410)의 전면을 경유하여 인플레이터와 이웃하는 부분에 연결될 수 있다. The other end 431c of the tether 431 is inserted into the airbag cushion 410 through the vent hole 411, and the tether guide member 414 and the airbag cushion 410 provided in front of the vent hole 411. Passed between the inner surface of the airbag cushion 410 is drawn out in front. The other end 431c of the drawn tether 431 is constrained to the front surface of the airbag cushion 410. The other end 431c of the tether 431 may be directly connected to the front surface of the airbag cushion 410 or may be connected to a portion adjacent to the inflator via the front surface of the airbag cushion 410.
테더 가이드 부재(414)는 띠형 조각편으로 구성되고 그 양단이 재봉 라인(S4)을 통하여 에어백 쿠션(410)의 내면에 결합된다. 테더(431)는 테더 가이드 부재(414)의 재봉라인(S4) 사이에 해당하는 테더 가이드 부재(414)의 부분 및 에어백 쿠션(410)의 내면 사이를 통과한다.The tether guide member 414 is composed of a strip piece and both ends thereof are coupled to the inner surface of the airbag cushion 410 through the sewing line S4. The tether 431 passes between the portion of the tether guide member 414 corresponding to the sewing line S4 of the tether guide member 414 and the inner surface of the airbag cushion 410.
이러한 구성으로, 에어백 쿠션(410)의 팽창 시, 테더(431)의 인장에 의해 벤트홀(411)은 조여져 가스 누출을 방지한다. 즉, 테더(431)의 인장 시, 테더 가이드 부재(414)가 연결된 부분(C)이 후방(R)으로 이동되어 벤트홀(411)이 견고하게 폐쇄되어 가스 누출을 방지할 수 있다. In this configuration, when the airbag cushion 410 is inflated, the vent hole 411 is tightened by the tension of the tether 431 to prevent gas leakage. That is, when the tether 431 is tensioned, the portion C to which the tether guide member 414 is connected is moved to the rear R so that the vent hole 411 may be firmly closed to prevent gas leakage.
도 16은 본 발명의 또 다른 실시 예를 따른 벤트 장치의 구성을 도시한 일부 확대 사시도이고, 도 17은 도 16의 선ⅩⅦ-ⅩⅦ을 따라 취해진 단면도이다. FIG. 16 is a partially enlarged perspective view illustrating a configuration of a vent device according to still another embodiment of the present disclosure, and FIG. 17 is a cross-sectional view taken along line VII of FIG. 16.
도 16 및 도 17을 참조하면, 테더(531)의 일단(531a)은 벤트홀(511)의 전방측에서 에어백 쿠션(510)의 외면에 재봉 라인(S5)을 통하여 연결된다. 16 and 17, one end 531a of the tether 531 is connected to the outer surface of the airbag cushion 510 at the front side of the vent hole 511 through a sewing line S5.
에어백 쿠션(510)의 벤트홀(511)의 후방측 내면에는 테더 가이드 부재(514)가 재봉라인(S6)을 통하여 연결된다. 테더 가이드 부재(514)는 띠형 조각편으로 구성되고 그 양단이 재봉 라인(S6)을 통하여 에어백 쿠션(510)의 내면에 결합된다. 그리하여 테더(531)는 에어백 쿠션(510)의 내면 및 테더 가이드 부재(514)의 재봉 라인(S6) 사이에 대응하는 부분과의 사이를 통과한다. The tether guide member 514 is connected to the rear inner surface of the vent hole 511 of the airbag cushion 510 through the sewing line S6. The tether guide member 514 is composed of a strip piece and both ends thereof are coupled to the inner surface of the airbag cushion 510 through the sewing line S6. Thus, the tether 531 passes between the inner surface of the airbag cushion 510 and the corresponding portion between the sewing line S6 of the tether guide member 514.
테더(531)의 타단(531c)은 벤트홀(511)을 통하여 에어백 쿠션(510)의 내부로 삽입된 후, 테더 가이드 부재(514) 및 에어백 쿠션(510)의 내면 사이로 삽입되고 에어백 쿠션(510)의 전면으로 인출된다. The other end 531c of the tether 531 is inserted into the airbag cushion 510 through the vent hole 511, and then inserted between the tether guide member 514 and the inner surface of the airbag cushion 510 and the airbag cushion 510. ) Is withdrawn to the front.
에어백 쿠션(510)의 전면으로 인출된 테더(531)의 타단(531c)은 에어백 쿠션(510)의 전면에 구속되도록 연결된다. The other end 531c of the tether 531 drawn out to the front of the airbag cushion 510 is connected to be constrained to the front of the airbag cushion 510.
이러한 구성으로, 에어백 쿠션(510)의 팽창 시, 테더(531)의 인장에 의해 벤트홀(511)의 전방 부분, 즉, 테더(531)의 일단(531a)이 재봉 라인(S5)에 의해 연결된 부분(D)이 후방(R)으로 당겨진다. In this configuration, when the airbag cushion 510 is inflated, the front portion of the vent hole 511, that is, one end 531a of the tether 531 is connected by the sewing line S5 by the tension of the tether 531. The part D is pulled to the rear R.
에어백 쿠션(510)이 완전히 팽창된 경우, 완전히 인장된 테더(531)에 의해 D부분은 후방(R)으로 더욱 세게 당겨져 벤트홀(511)은 견고하게 차폐된다.When the airbag cushion 510 is fully inflated, the portion D is pulled harder to the rear R by the fully tensioned tether 531 so that the vent hole 511 is tightly shielded.
따라서, 에어백 쿠션(510) 내의 가스가 외부로 누출되는 것을 방지하여 에어백 쿠션(510)의 내압을 적절히 유지할 수 있도록 한다. Therefore, the gas in the airbag cushion 510 may be prevented from leaking to the outside to properly maintain the internal pressure of the airbag cushion 510.
테더는 상술한 바와 같이 다양한 테더 가이드 수단(예를 들면 상술한 테더홀 또는 테더 가이드 부재)을 통하여 다양한 루트로 에어백 쿠션에 구속되어 벤트홀의 폐쇄를 다양하게 콘트롤 하도록 구성될 수 있다. The tether may be configured to variously control the closure of the vent hole by being constrained to the airbag cushion with various routes through various tether guide means (eg, the tether hole or tether guide member described above) as described above.
본 발명을 첨부 도면과 전술된 바람직한 실시 예를 참조하여 설명하였으나, 본 발명은 그에 한정되지 않으며, 후술하는 특허청구범위에 의해 한정된다. 따라서, 본 기술분야의 통상의 지식을 가진 자라면 후술하는 특허청구범위의 기술적 사상에서 벗어나지 않는 범위 내에서 본 발명을 다양하게 변형 및 수정할 수 있다.Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto, and is defined by the following claims. Accordingly, one of ordinary skill in the art may variously modify and modify the present invention without departing from the spirit of the appended claims.

Claims (8)

  1. 차량의 윈드 실드와 인스트루먼트 패널 사이에서 팽창 전개하고, 상기 인스트루먼트 패널 및 승객 사이에서 팽창 전개하는 에어백 쿠션;An airbag cushion inflating and deploying between the windshield and the instrument panel of the vehicle and inflating and deploying between the instrument panel and the passenger;
    상기 에어백 쿠션으로부터 팽창 유체를 배출하도록 상기 에어백 쿠션에 형성되고, 상기 에어백 쿠션의 초기 전개 시 상기 윈드 실드와 상기 인스트루먼트 패널로부터의 가압력에 의해 개방되도록 일 방향으로 길게 형성된 벤트홀; 및A vent hole formed in the airbag cushion to discharge the inflation fluid from the airbag cushion, the vent hole being elongated in one direction so as to be opened by the pressing force from the wind shield and the instrument panel during initial deployment of the airbag cushion; And
    상기 에어백 쿠션의 만개 시, 인장에 의해 상기 벤트홀을 차폐하는 테더를 포함하는 가변 벤트 기능을 갖는 에어백. And a tether for shielding the vent hole by tension when the airbag cushion is in full bloom.
  2. 제1항에 있어서, 상기 벤트홀은 상기 윈드 실드 및 상기 인스트루먼트 패널이 이루는 각을 2등분 하는 선에 대하여 직교하는 수직선으로부터 +45° ~ -45° 범위 내의 각도로 형성된 가변 벤트 기능을 갖는 에어백. The airbag of claim 1, wherein the vent hole is formed at an angle within a range of + 45 ° to −45 ° from a vertical line perpendicular to a line bisecting an angle formed by the wind shield and the instrument panel.
  3. 제2항에 있어서, 상기 벤트홀은 일자형, 타원형, 또는 8자형으로 형성된 가변 벤트 기능을 갖는 에어백.The airbag of claim 2, wherein the vent hole has a variable vent function formed in a straight, elliptical, or eight shape.
  4. 제1항에 있어서, 상기 벤트홀은 6세 이하의 어린이가 상기 초기 팽창된 에어백 쿠션에 충돌 시, 상기 6세 이하의 어린이의 머리 앞에 위치하도록 배치된 가변 벤트 기능을 갖는 에어백. The airbag of claim 1, wherein the vent hole is disposed to be positioned in front of the head of the child of 6 years of age or younger when a child of 6 years of age or less hits the initially inflated airbag cushion.
  5. 제1항에 있어서, 상기 벤트홀의 전방측에 상기 테더의 이동을 가이드하는 테더가이드 수단이 형성되고, According to claim 1, Tether guide means for guiding the movement of the tether on the front side of the vent hole is formed,
    상기 테더의 일단은 상기 벤트홀의 후방측에서 상기 에어백 쿠션의 외면에 연결되고, 상기 테더의 타단은 상기 테더 가이드 수단을 통하여 상기 벤트홀의 전방으로 인출된 후 상기 에어백 쿠션의 전면에 구속되도록 된 가변 벤트 기능을 갖는 에어백. One end of the tether is connected to the outer surface of the airbag cushion at the rear side of the vent hole, and the other end of the tether is drawn out to the front of the vent hole through the tether guide means and then bound to the front of the airbag cushion Airbag with the function.
  6. 제5항에 있어서, 상기 테더 가이드 수단은 테더홀 또는 테더 가이드 부재를 포함하는 가변 벤트 기능을 갖는 에어백.6. The airbag of claim 5 wherein said tether guide means includes a tether hole or tether guide member.
  7. 제1항에 있어서, 상기 테더의 일단은 상기 벤트홀의 전방측에서 상기 에어백 쿠션의 외면에 연결되고, According to claim 1, One end of the tether is connected to the outer surface of the airbag cushion at the front side of the vent hole,
    상기 벤트홀의 후방측에는 상기 테더의 이동을 가이드하는 테더 가이드 수단이 형성되고, The rear side of the vent hole is formed with a tether guide means for guiding the movement of the tether,
    상기 테더의 타단은 상기 테더 가이드 수단을 통하여 상기 벤트홀의 후방측으로 가이드 된 후, 상기 에어백 쿠션의 전면측으로 인출되어 상기 에어백 쿠션의 전면에 구속되도록 된 가변 벤트 기능을 갖는 에어백. And the other end of the tether is guided to the rear side of the vent hole through the tether guide means, and then is drawn out to the front side of the airbag cushion to be constrained to the front side of the airbag cushion.
  8. 제7항에 있어서, 상기 테더 가이드 수단은 테더홀 또는 테더 가이드 부재를 포함하는 가변 벤트 기능을 갖는 에어백. 8. The airbag of claim 7, wherein the tether guide means includes a tether hole or tether guide member.
PCT/KR2016/005758 2015-07-28 2016-05-31 Airbag having variable vent function WO2017018652A1 (en)

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KR1020150106727A KR101708203B1 (en) 2015-07-28 2015-07-28 Airbag with varibable vetning

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