KR100736464B1 - Side air bag for automobile - Google Patents

Side air bag for automobile Download PDF

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Publication number
KR100736464B1
KR100736464B1 KR1020060036746A KR20060036746A KR100736464B1 KR 100736464 B1 KR100736464 B1 KR 100736464B1 KR 1020060036746 A KR1020060036746 A KR 1020060036746A KR 20060036746 A KR20060036746 A KR 20060036746A KR 100736464 B1 KR100736464 B1 KR 100736464B1
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KR
South Korea
Prior art keywords
chambers
driver
side airbag
air bag
inflator
Prior art date
Application number
KR1020060036746A
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Korean (ko)
Inventor
장명륜
유병선
김태우
이동준
오은환
최균순
Original Assignee
델파이코리아 주식회사
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Application filed by 델파이코리아 주식회사 filed Critical 델파이코리아 주식회사
Priority to KR1020060036746A priority Critical patent/KR100736464B1/en
Priority to EP09175860.7A priority patent/EP2163439B1/en
Priority to EP07008065A priority patent/EP1849662B1/en
Priority to US11/789,110 priority patent/US7762575B2/en
Priority to JP2007114778A priority patent/JP4889558B2/en
Priority to CN2007101097254A priority patent/CN101062674B/en
Priority to CN2009101757376A priority patent/CN101693451B/en
Priority to CN2009101757361A priority patent/CN101693450B/en
Application granted granted Critical
Publication of KR100736464B1 publication Critical patent/KR100736464B1/en
Priority to JP2010041017A priority patent/JP5230670B2/en
Priority to JP2010041016A priority patent/JP4939619B2/en

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    • 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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • 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
    • B60R21/21—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle side panels, e.g. doors
    • 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
    • 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
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/26005—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow the inflation fluid being transferred to the inflatable member by the mechanical deformation of the fluid container during an impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/06—Fixed roofs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01211—Expansion of air bags
    • B60R2021/01225—Expansion of air bags control of expansion volume
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B60R2021/2078—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats in rear seats
    • 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
    • B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted

Abstract

A side air bag for a vehicle is provided to protect the head of a passenger by expanding first an air bag at a position where the head of the passenger is located. A side air bag is installed at a roof rail on the upper side of a driver's seat and a rear seat. The side air bag includes a driver seat side air bag(10) and a rear seat side air bag(20). In the driver seat side air bag, chamber walls dividing chambers(11a,11b,11c,11d,11e) protrude between the divided chambers and are curved toward the direction of the gas ejected from an inflator. The chamber farther from the inflator has a lager inner space and inlet section than the chamber closer to the inflator. Chambers(21a,21b,21c) in the rear seat side air bag are divided by chamber walls, and curved opposite to the chambers of the driver seat side air bag.

Description

자동차용 사이드 에어백{Side Air Bag for Automobile}Side air bag for automobile

도1은 종래 사이드 에어백의 정면도.1 is a front view of a conventional side airbag.

도2는 종래 사이드 에어백의 구성도.2 is a block diagram of a conventional side airbag.

도3은 본 발명에 의한 사이드 에어백의 단면도.Figure 3 is a cross-sectional view of the side airbag according to the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1: 사이드 에어백 10: 운전석 사이드 에어백1: side airbag 10: driver side airbag

11a,11b,11c,11d,11e: 제1,2,3,4,5챔버11a, 11b, 11c, 11d, 11e: 1st, 2, 3, 4, 5 chamber

15: 인플레이터 16: 루프 레일15: Inflator 16: Roof Rails

17: 브라켓트 20: 뒷좌석 사이드 에어백17: Bracket 20: Rear seat side airbag

21a,21b,21c: 제1,2,3챔버 22: 분할부21a, 21b, 21c: 1st, 2nd, 3rd chamber 22: Division

본 발명은 자동차용 사이드 에어백에 관한 것으로, 더욱 상세하게는 운전석 및 조수석에 설치된 에어백과 함께 탑승자의 측면에 설치되어 자동차의 측면 충돌시 탑승자를 보호하도록 하는 자동차용 사이드 에어백에 관한 것이다.The present invention relates to a side airbag for a vehicle, and more particularly, to a side airbag for a vehicle installed on the side of the occupant together with the airbags installed in the driver's seat and the passenger seat to protect the occupant during a side collision of the vehicle.

주지하는 바와 같이 자동차에는 자동차의 충돌시 탑승자를 보호하기 위하여 안전벨트와 함께 탑승자에게 가해지는 충격을 완화시키도록 에어백이 설치된다.As is well known, the vehicle is provided with an airbag to mitigate the impact on the occupant together with the seat belt to protect the occupant in the event of a collision.

이러한 에어백은 운전자 및 조수석 탑승자를 보호하기 위하여 운전석과 조수석에 설치되는 것이며, 자동차의 충돌 사고 또는 주행 중 급정차에 의하여 탑승자의 신체가 앞으로 쏠리게 되어 스티어링 휠이나 인스트루먼트 패널에 직접 부딪히지 않도록 충격완충 역할을 하게 된다.These airbags are installed in the driver's seat and the passenger seat to protect the driver and the front passenger, and the shock absorber serves to prevent the passenger's body from being forwardly moved by a car crash or a sudden stop during driving, so that they do not hit the steering wheel or the instrument panel directly. Done.

이와 같은 에어백은 차량 충돌시 충돌감지센서와 전자제어유닛(ECU: Electronic Control Unit)으로 작동되는데, 이는 차량의 충돌시 충돌감지센서가 충격을 감지하여 이를 ECU로 보내게 되고, ECU는 충격 강도에 따라 에어백의 작동 유무를 판단하여 에어백을 작동시켜야 되는 조건이면 인플레이터(Inflator)를 작동시켜 에어백을 팽창시킨다.The airbag is operated by a collision detection sensor and an electronic control unit (ECU) in the event of a vehicle crash. The collision sensor detects a shock and sends it to the ECU when the vehicle crashes. Therefore, it is determined whether the airbag is operated, and if it is a condition to operate the airbag, the inflator is operated to inflate the airbag.

이때, 인플레이터는 접힌 상태로 설치된 에어백에 연결되고, ECU에 의하여 작동시 그 내부의 히터가 발열하여 화약을 착화시키고, 가스발생제를 연소시켜 순간적으로 발생된 다량의 팽창가스를 에어백으로 분사시켜 에어백을 팽창시키게 된다.At this time, the inflator is connected to the airbag installed in a folded state, and when operated by the ECU, the heater inside thereof generates heat to ignite the gunpowder, burns the gas generating agent, and injects a large amount of expanded gas generated in an instant into the airbag. Will expand.

또한, 최근에는 측면 충돌시 탑승자를 보호하기 위하여 도어 내측에 설치된 사이드 에어백으로 탑승자의 측면을 보호하도록 하고 있다.In recent years, in order to protect the occupant in the event of a side collision, the side airbag installed inside the door is used to protect the occupant's side.

이러한 사이드 에어백은 앞좌석과 뒷좌석 상부의 루프 레일에 설치되어 측면으로부터 충격이 가해지면 인플레이터의 작동으로 에어백이 전개되어 탑승자를 보호하게 된다.These side airbags are installed on the roof rails of the upper and rear seats, and when an impact is applied from the side, the airbag is deployed by the inflator to protect the occupants.

이와 같은 사이드 에어백은 다수 출원되어 있는데, 그 일례로써 대한민국 실용신안출원 제1999-2892호로 개시된 "자동차용 사이드 에어백"(이하, "종래기술1"이라 한다)이 있다.A number of such side airbags have been applied. For example, the "side airbag for automobiles" (hereinafter referred to as "prior art 1") disclosed in Korean Utility Model Application No. 1999-2892.

도1에 도시된 바와 같이, 상기 종래기술1의 자동차용 사이드 에어백은 자동차의 측면 충돌시 전개되는 더락스백과 헤드백으로 구성되는 사이드 에어백에 있어서, 더락스백(102)의 후측부에 목 형상으로 되는 마운팅부(104)와, 이 마운팅부(104)로부터 떨어져 형성되는 하단부(106)로 구성되며, 마운팅부(104)의 중심을 기점으로 전체적으로 상하 대칭형으로 형성되며, 테더(103)는 더락스백(102)과 헤드백(101) 사이에 위치되어 마운팅부(104)로부터 먼쪽에 벤트홀이 형성되고, 풀링판(105)과 더락스백(102)을 대칭되게 헤드백(101)으로 연장, 형성한다.As shown in FIG. 1, the side airbag for a vehicle of the related art 1 has a neck shape at a rear side of the delax bag 102 in a side air bag composed of a delax bag and a head bag that are deployed when a vehicle collides with the side of the car. It is composed of a mounting portion 104 and the lower end portion 106 formed away from the mounting portion 104, and is formed in a vertical symmetrical form as a whole starting from the center of the mounting portion 104, the tether 103 is further Located between the lock bag 102 and the head bag 101, a vent hole is formed away from the mounting part 104, and the pull plate 105 and the lock bag 102 are symmetrically moved to the head bag 101. Extend, form.

이러한 사이드 에어백은 에어백 전개시 요동을 줄이는 이점은 있으나, 앞좌석 또는 뒷좌석에 별도로 설치되므로 사이드 에어백의 설치에 소요되는 작업시간이 오래 걸리게 됨은 물론 작업 공정이 많아 작업능률을 떨어뜨리는 단점이 있다.Such side airbags have the advantage of reducing fluctuations when deploying airbags, but are separately installed in the front seat or the rear seat, which takes a long time required for the installation of the side airbags, as well as a large number of working processes, thereby degrading work efficiency.

이와 같은 단점을 해결하기 위한 것으로, 대한민국 특허출원 제2002-667326호로 "자동차용 사이드 에어백"(이하, "종래기술2"라 한다)이 개시되어 있다.In order to solve such a disadvantage, Korean Patent Application No. 2002-667326 discloses a "side airbag for a vehicle" (hereinafter referred to as "prior art 2") is disclosed.

도2에 도시된 바와 같이, 상기 종래기술2의 자동차용 사이드 에어백은 루프사이드패널(100)의 헤드라이닝 내측에 설치된 에어백(200)과, 상기 에어백(200)의 일측부에 설치되며, 내부에는 측면 충돌시 에어백(200)을 전개시킬 수 있도록 가스발생제가 수납된 인플레이터(300)와, 상기 에어백(200)에 일측 단부가 연결되고, 타측 단부는 루프사이드패널(100)에 회동 가능하게 설치된 가이드부재(220)로 구성 된다.As shown in FIG. 2, the side airbag for a vehicle of the related art 2 is installed in an airbag 200 installed inside the headlining of the roofside panel 100 and on one side of the airbag 200. The inflator 300 in which a gas generating agent is stored so that the airbag 200 can be deployed in a side impact, and one end is connected to the airbag 200, and the other end is rotatably installed on the roofside panel 100. It is composed of a member 220.

이와 같은 사이드 에어백은 앞좌석 및 뒷좌석을 하나의 에어백으로 작동시킬 수 있는 이점은 있으나, 인플레이터에서 발생된 가스가 분출된 진행방향과 수직으로 펼쳐짐으로써 운전자를 신속하게 보호할 수 없게 되는 문제점이 있다.Such side airbags have the advantage of operating the front and rear seats as a single airbag, but there is a problem in that the gas generated from the inflator can be unfolded perpendicularly to the direction of ejection to prevent the driver from being quickly protected.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 자동차의 측면 충돌시 탑승자를 보다 신속하게 보호할 수 있도록 하는 자동차용 사이드 에어백을 제공하는 데 있다.The present invention is to solve the above problems, to provide a side airbag for a vehicle that can more quickly protect the occupant during the side collision of the vehicle.

상기와 같은 목적을 달성하기 위하여, 본 발명은 운전석 및 뒷좌석 상부의 루프 레일에 설치된 사이드 에어백에 있어서,
다수 분할된 챔버 사이에는 이들 챔버를 구획하는 챔버벽들을 돌출되게 형성하되, 상기 각 챔버벽들을 인플레이터에서 분출되는 가스의 진행방향을 향하여 만곡되게 형성함과 함께 상기 챔버들 중에서 상기 인플레이터로부터 멀리 떨어진 챔버는 상기 인플레이터로부터 가까운 거리에 있는 챔버들 보다 그 내부 공간 및 입구 부분이 크게 형성된 운전석 사이드 에어백과,
다수 분할된 챔버 사이를 구획하는 챔버벽을 돌출되게 형성하되, 상기 챔버벽들은 상기 운전석 사이드 에어백의 각 챔버벽과 대향하여 만곡되게 형성된 뒷좌석 사이드 에어백을 포함하는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a side airbag installed on the roof rail of the driver's seat and the rear seat,
The chamber walls partitioning the chambers are formed to protrude between the plurality of divided chambers, and the chamber walls are formed to be curved toward the traveling direction of the gas ejected from the inflator, and the chambers are far from the inflator among the chambers. The driver's seat side airbag having an inner space and an inlet portion larger than those of chambers at a short distance from the inflator,
A chamber wall partitioning between the plurality of divided chambers is formed to protrude, and the chamber walls include a rear seat side air bag formed to be curved to face each chamber wall of the driver side air bag.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

도3은 본 발명에 의한 사이드 에어백의 단면도이다.3 is a cross-sectional view of the side airbag according to the present invention.

도3에 도시된 바와 같이, 본 발명은 운전석 측면에 다수 분할된 챔버(11a~e)로 이루어진 운전석 사이드 에어백(10)과, 뒷좌석 측면에 다수 분할된 챔버(21a~c)로 이루어진 뒷좌석 사이드 에어백(20)으로 이루어진다.As shown in FIG. 3, the present invention provides a driver seat side airbag 10 including a plurality of chambers 11a to e divided into the driver's side, and a rear seat side airbag composed of chambers 21a to c divided into the rear seat side. It consists of 20.

아울러 운전석 사이드 에어백(10)은 다수로 분할된 챔버로 이루어지는데, 운전석의 시야 전방에서부터 후방측으로 제1챔버(11a), 제2챔버(11b), 제3챔버(11c), 제4챔버(11d) 및 제5챔버(11e)가 연속되게 형성된다.In addition, the driver's side airbag 10 is composed of a plurality of divided chambers, the first chamber 11a, the second chamber 11b, the third chamber 11c, and the fourth chamber 11d from the front to the rear of the driver's field of view. ) And the fifth chamber 11e are formed continuously.

이러한 챔버들(11a~e)은 인플레이터(15)에서 발생된 가스 유입을 원활하게 하기 위하여 각각의 챔버(11a~e) 사이를 구획하고 있는 챔버벽(12a~d)의 형상을 각기 달리 형성하게 된다. 즉, 챔버들(11a~e)의 사이에는 그 저면으로부터 일정한 높이로 챔버벽(12a~d)이 돌출되게 형성되는데, 상기 챔버벽들(12a~d)은 후술하는 인플레이터(15)의 방향을 향하여 점차적으로 만곡하는 라운드 형상으로 형성된다.These chambers 11a to e have different shapes of the chamber walls 12a to d partitioning between the respective chambers 11a to e to facilitate the inflow of gas generated from the inflator 15. do. That is, the chamber walls 12a to d are formed to protrude from the bottom of the chambers 11a to e at a predetermined height, and the chamber walls 12a to d are arranged in the direction of the inflator 15 to be described later. It is formed into a round shape gradually curved toward.

특히, 상기 인플레이터(15)로부터 멀리 떨어져 있는 제1챔버(11a)와 제2챔버(11b)의 경우는 제3챔버(11c) 내지 제5챔버(11e) 보다 그 내부 공간은 물론 입구 부분을 크게 형성함으로써, 인플레이터(15)로부터 분출된 가스가 쉽게 유입되도록 한다.In particular, in the case of the first chamber 11a and the second chamber 11b far from the inflator 15, the inlet portion as well as the internal space thereof is larger than that of the third chamber 11c to the fifth chamber 11e. By forming, the gas ejected from the inflator 15 is easily introduced.

따라서, 인플레이터(15)에서 발생된 가스가 사이드 에어백(1) 내로 유입될 때, 상기 운전석 사이드 에어백(10)에 형성된 각 챔버들(11a~11e)에 신속하고 균등하게 확산되게 된다.Therefore, when the gas generated in the inflator 15 is introduced into the side airbag 1, the gas is rapidly and evenly spread in the chambers 11a to 11e formed in the driver side airbag 10.

또한, 뒷좌석 사이드 에어백(20)은 제1챔버(21a), 제2챔버(21b) 및 제3챔 버(21c)로 이루어지며, 이는 상기 운전석 사이드 에어백(10)과 후술하는 분할부(22)를 경계로 하여 대략적으로 대향되는 관계를 갖도록 형성한다.In addition, the rear seat side airbag 20 is composed of a first chamber 21a, a second chamber 21b, and a third chamber 21c, which are the driver's side airbag 10 and the division part 22 described later. It is formed to have a roughly opposite relationship with the boundary as.

즉, 뒷좌석 사이드 에어백(20)의 제1챔버(21a), 제2챔버(21b) 및 제3챔버(21c)는 운전석 사이드 에어백(10)의 각 챔버들(11a~11e)과 마찬가지로 챔버 사이에 챔버벽(23a,23b)을 형성하여 구획하는데, 여기서 상기 챔버벽(23a,23b)들은 상기 운전석 사이드 에어백(10)의 각 챔버들과 대향하는 관계를 갖도록 만곡되게 형성된다.That is, the first chamber 21a, the second chamber 21b and the third chamber 21c of the rear seat side airbag 20 are similarly disposed between the chambers 11a to 11e of the driver side airbag 10. Chamber walls 23a and 23b are formed and partitioned, where the chamber walls 23a and 23b are formed to be curved to have an opposite relationship with the respective chambers of the driver's side airbag 10.

따라서, 인플레이터(15)로부터 분출되는 가스가 그 진행 방향에 있는 운전석 사이드 에어백(10)의 각 챔버들(11a~11e)에 유입되는 동시에 뒷좌석 사이드 에어백(20)의 각 챔버들(21a~21c)로도 신속하게 유입된다.Therefore, the gas ejected from the inflator 15 flows into the respective chambers 11a to 11e of the driver's side airbag 10 in the traveling direction and at the same time, the respective chambers 21a to 21c of the rear seat side airbag 20. The furnace also flows quickly.

한편, 상기 운전석 사이드 에어백(10)과 뒷좌석 사이드 에어백(20) 사이에는 분할부(22)가 형성되는데, 상기 분할부(22)는 상기 각 챔버벽(12a~12d,23a,23b)들 보다 그 폭이 넓게 이루어져 대략 피라미드 형상으로 형성하되, 그 양측면은 상기 운전석 사이드 에어백(10)의 챔버벽(12a~12d)과 뒷좌석 사이드 에어백(20)의 챔버벽(23a,23b)과 대략 일치하는 만곡된 형상을 갖는다.On the other hand, a partition 22 is formed between the driver's side airbag 10 and the rear seat side airbag 20, and the partition 22 is larger than the chamber walls 12a-12d, 23a, 23b. It is wide in width to form a substantially pyramid shape, both sides of which are curved approximately coincident with the chamber walls 12a-12d of the driver side airbag 10 and the chamber walls 23a, 23b of the rear seat side airbag 20. It has a shape.

이에 따라, 상기 인플레이터(15)로부터 분출된 가스는 비록 순간적이지만 일단 운전석 사이드 에어백(10)을 충진시킨 후 뒷좌석 사이드 에어백(20)을 충진하게 되는데, 이때 상기 분할부(22)에 의하여 가스가 신속하게 뒷좌석 사이드 에어백(20)에 충진되는 동시에 양 사이드 에어백(10,20)의 형태 및 위치를 유지하게 된다.Accordingly, the gas ejected from the inflator 15, although instantaneously, fills the driver's side airbag 10 and then fills the rear seat side airbag 20, wherein the gas is rapidly displaced by the partition 22. In order to be filled in the rear seat side airbag 20 at the same time to maintain the shape and position of both side airbag (10,20).

또한, 인플레이터(15)는 뒷좌석 사이드 에어백(20) 상부의 루프 레일(16)에 고정하며, 사이드 에어백(1)은 루프 레일(16)에 고정된 브라켓트(17)에 클립 등의 고정수단을 이용하여 고정시킨다.In addition, the inflator 15 is fixed to the roof rail 16 above the rear seat side airbag 20, and the side air bag 1 uses a fixing means such as a clip to the bracket 17 fixed to the roof rail 16. To fix it.

이와 같은 구성으로 이루어진 본 발명은 자동차의 충돌시 충돌감지센서에서 충돌된 강도를 감지하여 ECU에 보내게 되고, ECU에서 사이드 에어백(1)의 작동 여부를 판단하게 된다.According to the present invention having the above configuration, the collision detection sensor detects the intensity of the collision at the time of the collision of the vehicle and sends it to the ECU, and determines whether the side airbag 1 is operated in the ECU.

이러한 ECU에서 자동차의 측면으로 강한 충격이 가해지면 ECU에서 사이드 에어백(1)을 작동시키는 신호를 인플레이터(15)로 보내게 되고, 인플레이터(15)에서는 내장된 점화회로에서 짧은 순간에 전기점화를 일으켜 점화제를 점화시킴으로써 내장된 화약이 기폭하게 된다.In such an ECU, when a strong shock is applied to the side of the vehicle, the ECU sends a signal to the inflator 15 to operate the side airbag 1, and the inflator 15 generates electric ignition in a short time in the built-in ignition circuit. By igniting the ignition agent the built-in gunpowder detonates.

이와 같은 화약의 기폭으로 발생된 열기가 가스발생제를 연소시켜 발생된 팽창가스에 의하여 사이드 에어백(1)이 유입되는데, 뒷좌석 사이드 에어백(20)의 후방에 설치된 인플레이터(15)로부터 팽창가스가 분출되는 방향으로 직진되면서 확산하게 된다.The heat generated by the explosion of the explosives combusts the gas generating agent, and the side airbag 1 is introduced by the inflation gas generated, and the inflation gas is ejected from the inflator 15 installed at the rear of the rear side airbag 20. As it goes straight in the direction of diffusion.

특히, 본 발명의 사이드 에어백(1)의 운전석 사이드 에어백(10)은 각 챔버(11a~11e)들의 입구가 팽창가스의 분출되는 방향으로 기울어진 형태로 형성되어 있으므로, 인플레이터(15)에서 팽창가스의 분출 후 신속히 운전석 사이드 에어백(10)의 각 챔버들(11a~11e)이 충진된다.In particular, the driver's side airbag 10 of the side airbag 1 of the present invention is formed in such a way that the inlet of each of the chambers 11a to 11e is inclined in the direction in which the inflation gas is ejected, so that the inflator 15 expands the gas. After the ejection of, the chambers 11a to 11e of the driver's side airbag 10 are quickly filled.

이는 팽창가스가 고압으로 분출된 다음 주변으로 확산하게 되는데, 밀폐된 사이드 에어백(1)의 운전석 사이드 에어백(10) 위치에서 확산이 시작됨과 함께 가 장 근접한 제2,3,4챔버(11b,11c,11d)에 유입됨과 함께 제1챔버(11a) 및 제5챔버(11e)로 유입되어 운전석 사이드 에어백(10)을 전개시킨다.This causes the inflation gas to be ejected at high pressure and then diffused to the surroundings, where the diffusion begins at the driver's side airbag 10 position of the sealed side airbag 1 and the second, third and fourth chambers 11b and 11c closest to each other. 11d) flows into the first chamber 11a and the fifth chamber 11e, and the driver's side airbag 10 is deployed.

그리고, 운전석 사이드 에어백(10)이 전개됨과 함께 후방에 형성된 뒷좌석 사이드 에어백(20)의 제1챔버(21a), 제2챔버(21b) 및 제3챔버(21c)를 전개시킨다.Then, while the driver's side airbag 10 is deployed, the first chamber 21a, the second chamber 21b, and the third chamber 21c of the rear seat side airbag 20 formed at the rear are developed.

이러한 각 챔버들(11a~11e)의 전개는 순식간에 이루어지는 것으로, 운전석 사이드 에어백(10)과 뒷좌석 사이드 에어백(20)의 전개는 거의 동시에 이루어진다.The deployment of each of these chambers 11a to 11e takes place in an instant, and the deployment of the driver side airbag 10 and the rear seat side airbag 20 takes place at substantially the same time.

이에 따라 루프 레일(16)에 설치된 사이드 에어백(1)이 모두 전개됨으로써, 운전석의 운전자 및 뒷좌석 탑승자의 머리 부분에 가해지는 충격을 완화시켜 탑승자를 안전하게 보호할 수 있게 된다.As a result, all of the side airbags 1 installed on the roof rails 16 are deployed, thereby alleviating the impact on the heads of the driver and the rear seat occupant of the driver's seat, thereby protecting the occupant safely.

이와 같은 본 발명은 운전석 사이드 에어백(10)의 챔버(11a~11e)를 5개의 챔버로 설명하였으나, 이에 구애됨이 없이 3개 내지 7개로 분할시켜 형성할 수 있음은 물론, 뒷좌석 사이드 에어백(20)도 하나 이상의 분할된 챔버(21a~21c)로 형성할 수 있음은 물론이다.As described above, the present invention has described the chambers 11a to 11e of the driver's side airbag 10 as five chambers, but can be formed by dividing into three to seven without being particularly limited to the rear side airbag 20. ) May also be formed as one or more divided chambers 21a to 21c.

본 발명은 사이드 에어백의 전개시 운전석에 위치한 운전석 사이드 에어백의 입구를 가스의 진행방향과 일치시켜 형성함으로써 신속한 사이드 에어백의 전개로 운전자를 보호함과 함께 뒷좌석 탑승자를 보호할 수 있게 되고, 운전자 또는 탑승자의 머리가 위치한 부분의 에어백을 먼저 전개시켜 주어 탑승자의 머리를 보다 안전하게 보호할 수 있게 되는 유용한 효과가 있다.According to the present invention, the inlet of the driver's side airbag located in the driver's seat is formed in accordance with the gas traveling direction when the side airbag is deployed, thereby protecting the driver and the occupant of the rear seat while protecting the driver with the rapid deployment of the side airbag. By deploying the airbags in the area where the head of the first to have a useful effect that can be more secure to protect the occupant's head.

Claims (4)

운전석 및 뒷좌석 상부의 루프 레일에 설치된 사이드 에어백에 있어서,In the side airbags installed on the roof rails of the driver's seat and upper rear seats, 다수 분할된 챔버 사이에는 이들 챔버를 구획하는 챔버벽들을 돌출되게 형성하되, 상기 각 챔버벽들을 인플레이터에서 분출되는 가스의 진행방향을 향하여 만곡되게 형성함과 함께 상기 챔버들 중에서 상기 인플레이터로부터 멀리 떨어진 챔버는 상기 인플레이터로부터 가까운 거리에 있는 챔버들 보다 그 내부 공간 및 입구 부분이 크게 형성된 운전석 사이드 에어백과,The chamber walls partitioning the chambers are formed to protrude between the plurality of divided chambers, and the chamber walls are formed to be curved toward the traveling direction of the gas ejected from the inflator, and the chambers are far from the inflator among the chambers. A driver's seat side airbag having an inner space and an inlet portion larger than chambers located at a short distance from the inflator, 다수 분할된 챔버 사이를 구획하는 챔버벽을 돌출되게 형성하되, 상기 챔버벽들은 상기 운전석 사이드 에어백의 각 챔버벽과 대향하여 만곡되게 형성된 뒷좌석 사이드 에어백을 포함하는 것을 특징으로 하는 자동차용 사이드 에어백.And a chamber wall partitioning between the plurality of divided chambers, wherein the chamber walls include a rear seat side air bag curved to face each chamber wall of the driver side air bag. 제1항에 있어서,The method of claim 1, 상기 운전석 사이드 에어백과 뒷좌석 사이드 에어백 사이에는 분할부를 형성하되, 상기 분할부는 각 챔버벽들 보다 폭이 넓게 형성된 피라미드 형상으로 이루어진 것을 특징으로 하는 자동차용 사이드 에어백.A partition is formed between the driver's side airbag and the rear seat side airbag, and the partition is formed in a pyramid shape wider than each chamber wall. 삭제delete 제2항에 있어서,The method of claim 2, 상기 인플레이터는 뒷좌석 사이드 에어백 상부의 루프 레일에 고정되는 것을 특징으로 하는 자동차용 사이드 에어백.The inflator is an automobile side airbag, characterized in that fixed to the roof rail of the upper side of the rear side airbag.
KR1020060036746A 2006-04-24 2006-04-24 Side air bag for automobile KR100736464B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
KR1020060036746A KR100736464B1 (en) 2006-04-24 2006-04-24 Side air bag for automobile
EP09175860.7A EP2163439B1 (en) 2006-04-24 2007-04-20 Side airbag for vehicle
EP07008065A EP1849662B1 (en) 2006-04-24 2007-04-20 Side airbag for vehicle
US11/789,110 US7762575B2 (en) 2006-04-24 2007-04-23 Side airbag for vehicle
JP2007114778A JP4889558B2 (en) 2006-04-24 2007-04-24 Automotive side airbag
CN2007101097254A CN101062674B (en) 2006-04-24 2007-04-24 Side airbag for vehicle
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JP2010041017A JP5230670B2 (en) 2006-04-24 2010-02-25 Automotive side airbag
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