KR0137240B1 - Air bag installed at the seat belt of a vehicle - Google Patents

Air bag installed at the seat belt of a vehicle

Info

Publication number
KR0137240B1
KR0137240B1 KR1019950002318A KR19950002318A KR0137240B1 KR 0137240 B1 KR0137240 B1 KR 0137240B1 KR 1019950002318 A KR1019950002318 A KR 1019950002318A KR 19950002318 A KR19950002318 A KR 19950002318A KR 0137240 B1 KR0137240 B1 KR 0137240B1
Authority
KR
South Korea
Prior art keywords
airbag
seat belt
vehicle
collision
compressed gas
Prior art date
Application number
KR1019950002318A
Other languages
Korean (ko)
Other versions
KR960031225A (en
Inventor
정재호
Original Assignee
배순훈
대우전자주식회사
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 배순훈, 대우전자주식회사 filed Critical 배순훈
Priority to KR1019950002318A priority Critical patent/KR0137240B1/en
Publication of KR960031225A publication Critical patent/KR960031225A/en
Application granted granted Critical
Publication of KR0137240B1 publication Critical patent/KR0137240B1/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
    • B60R21/18—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags the inflatable member formed as a belt or harness or combined with a belt or harness arrangement
    • 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
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
    • B60R21/0155—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment sensing belt tension
    • 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
    • B60R21/268—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 using instantaneous release of stored pressurised gas
    • B60R21/274—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 using instantaneous release of stored pressurised gas characterised by means to rupture or open the fluid source
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
    • B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
    • B60R2021/0044—Chest
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
    • B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
    • B60R2021/0048—Head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
    • B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
    • B60R2021/0058—Shoulders
    • 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
    • B60R2021/01286—Electronic control units

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)

Abstract

본 발명은 자동차의 시트벨트에 설치된 에어백에 관한 것으로 특히 시트벨트(1)에 장착되어 충돌사고시 시트벨트 (1) 에 작용하는 장력에 의해 작동되는 에어백 (2)을 제공함으로서 에어백이 구비되지 않은 차량에도 에어백 (2)을 용이하게 장착할 수 있게 할 뿐만 아니라 탑승객의 자세에 관계없이 충격력을 효과적으로 완화시켜줄수 있게 하여 충돌사고시 탑승객을 보다 안전하게 보호할 수 있게 한 것이다.The present invention relates to an airbag installed in a seat belt of an automobile, in particular a vehicle which is not equipped with an airbag by providing an airbag (2) mounted on the seat belt (1) and operated by a tension acting on the seat belt (1) in a crash event. Edo airbag (2) not only makes it easy to mount, but also to effectively alleviate the impact force regardless of the position of the occupants to protect the passengers in the event of a crash more secure.

Description

자동차용 시트 벨트에 설치된 에어백Airbags installed on car seat belts

제 1 도는 종래의 에어백이 자동차에 설치된 상태를 보인 도면.1 is a view showing a state in which a conventional airbag is installed in a vehicle.

제 2 도는 본 발명의 시트벨트에 설치된 에어백을 보인 단면도.2 is a cross-sectional view showing an airbag installed in the seat belt of the present invention.

제 3 도는 본 발명의 설치 상태도.3 is an installation state diagram of the present invention.

제 4 도는 본 발명의 에어백이 전개된 상태를 보인 도면.4 is a view showing a state in which the airbag of the present invention is deployed.

*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 시트벨트1a : 어깨끈1: Seat belt 1a: Shoulder strap

2 : 에어백3 : 압축가스용기2: air bag 3: compressed gas container

3a : 격막4 : 점화구3a: diaphragm 4: ignition hole

5 : 충돌 장력 감지 센서6 : 이씨유5: collision tension detection sensor 6: Lee Yu

본 발명은 자동차용 시트벨트에 설치된 에어백에 관한 것으로, 특히 차량 충돌 사고시 시트벨트에 작용하는 장력에 의해 시트벨트에 설치된 에어백이 전개되도록 한 것이다.The present invention relates to an airbag installed in a seat belt for an automobile, and in particular, an airbag installed in the seat belt is deployed by a tension acting on the seat belt in a vehicle crash accident.

일반적으로 자동차에는 충돌사고시 탑승객을 보호하기 위한 수단으로서 에어백이 구비되어 있다.In general, automobiles are equipped with airbags as a means of protecting passengers in a crash.

종래의 자동차에 구비된 에어백은 제 1 도에 도시된 바와 같이, 설치 위치에 따라 스티어링 휠(e)에 장착된 운전자용 에어백(a)과, 조수석의 인스투르먼트 패널(f)에 장착된 탑승객용 에어백(b)으로 나누어 볼 수 있으며, 상기 에어백은(a)(b)은 충돌감지 센서(C)들의 충돌감지신호에 의해 이씨유(d)가 인플레이터(inflator)를 폭발시킴으로서 작동된다.As shown in FIG. 1, an airbag provided in a conventional vehicle includes a driver airbag (a) mounted on a steering wheel (e) according to an installation position, and a passenger airbag mounted on an instrument panel (f) of a passenger seat. It can be divided into (b), wherein the airbag (a) (b) is operated by the explosion of the inflator (d) by the two C (d) by the collision detection signal of the collision detection sensors (C).

그러나 상술한 종래의 에어백(a)(b)을 이미 출고된 차량에 장착하기 위해서는 스티어링 휠(e) 및 인스트루먼트 패널(f)을 교체하지 않는 한 불가능할 뿐만아니라 에어백(a)(b)이 충돌사고시 작동될 수 있게 하는 충돌감지센서(c) 및 상기 충돌감지센서(c)의 충돌신호에 의해 에어백(a)(b)을 작동시키는 이씨유(d)를 별도로 구비시켜야 하기 때문에 설치 비용이 많이 소요되는 문제점이 있었다.However, in order to mount the above-mentioned conventional airbags (a) and (b) on a vehicle already shipped, it is not possible unless the steering wheel (e) and the instrument panel (f) are replaced. The installation cost is high because the collision detection sensor (c) which enables the operation and the reason (d) for operating the airbag (a) (b) by the collision signal of the collision detection sensor (c) must be separately provided. There was a problem.

또한 에어백(a)(b)은 일정위치에 고정된 상태에서 작동되기 때문에 탑승객이 비스듬히 앉아 있는 경우에는 충격력을 효과적으로 완화시켜줄 수 없는 폐단이 있었다.In addition, since the airbags (a) and (b) operate in a fixed position, there is a closed end that cannot effectively alleviate the impact force when the passenger is sitting at an angle.

본 발명은 상기한 문제점을 감안하여 안출한 것으로 시트벨트에 장착되어 충돌사고시 시트벨트에 작용하는 장력에 의해 작동되는 에어백을 제공함으써 에어백이 구비되지 않은 차량에도 에어백을 용이하게 장착할 수 있게 하고, 탑승객의 자세에 관계없이 충격력을 효과적으로 완화시켜줄 수 있게 하는 것을 주목적으로 한다.The present invention has been made in view of the above-mentioned problems, and by providing an air bag mounted on the seat belt and actuated by the tension acting on the seat belt in the event of an accident, the air bag can be easily mounted on a vehicle without the air bag. Therefore, the main objective is to effectively alleviate the impact force regardless of the passenger's posture.

상술한 본 발명은 목적은 시트벨트의 어깨끈 중간에 고정설치된 에어백과, 상기 에어백에 격막으로 차단되게 설치된 압축 가스 용기와, 상기 압축가스용기에 내설된 점화구와, 상기 시트벨트의 어깨끈 배면에 구비되어 차량 충돌시 어깨끈에 작용하는 장력을 감지하여 충돌 신호를 출력하는 충돌 장력감지 센서와, 상기 충돌 장력감지센서의 충돌신호를 기초로 상기 점화구를 점화시켜 압축가스의 팽창에 의해 격막을 파괴시키는 이씨유에 의하여 달성되어진다.The object of the present invention described above is an airbag fixed in the middle of a shoulder strap of the seat belt, a compressed gas container installed to be blocked by a diaphragm on the air bag, an ignition port built into the compressed gas container, and a shoulder strap of the seat belt. It is provided with a collision tension detection sensor for outputting a collision signal by detecting the tension acting on the shoulder strap when the vehicle crash, and igniting the ignition on the basis of the collision signal of the collision tension detection sensor to destroy the diaphragm by expansion of the compressed gas This is achieved by the seed oil.

이하 본 발명의 바람직한 실시예를 첨부도면에 의거 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

차량 충돌시 전개되어 탑승객을 보호하는 자동차용 에어백에 있어서, 시트벨트(1)의 어깨끈(1a)중간에 고정설치된 에어백(2)과, 상기 에어백(2)에 격막(3a)으로 차단되게 설치된 압축가스용기(3)와, 상기 압축가스용기(3)애 내설된 점화구(4)와, 상기 시트벨트(1)의 어깨끈(1a) 배면에 구비되어 차량 충돌시 어깨끈(1a)에 작용하는 장력을 감지하여 충돌 신호를 출력하는 충돌 장력 감시센서(5)와, 상기 충돌장력감지센서(5)의 충돌신호를 기초로 상기 점화구(4)를 점화시켜 압축가스용기내 압축가스를 팽창시켜 격막(3a)을 파괴시키는 이씨유(6)로 구성된 것이다.In a vehicle airbag deployed in a vehicle collision to protect passengers, the airbag 2 is fixedly installed in the middle of the shoulder strap 1a of the seat belt 1, and the airbag 2 is installed to be blocked by the diaphragm 3a. It is provided on the back of the compressed gas container 3, the ignition port 4 embedded in the compressed gas container 3, and the rear shoulder strap 1a of the seat belt 1 to act on the shoulder strap 1a during a vehicle collision. A collision tension monitoring sensor 5 for detecting a tension to output a collision signal and igniting the ignition port 4 based on a collision signal of the collision tension sensor 5 to expand the compressed gas in the compressed gas container. It is comprised from the seed oil 6 which destroys the diaphragm 3a.

이와같이 된 본 발명의 충돌 장력 감지 센서(5)로는 스트레인 게이지(stain gage)가 사용될 수 있으며, 에어백(2)은 전개시 탑승자의 목부분을 받쳐주는 동시에 어깨와 가슴을 덮어줄 수 있는 형태로 제작한다.The strain tension sensor (5) of the present invention as described above can be used a strain gage (stain gage), the airbag (2) is produced in a form that can cover the shoulder and chest while supporting the neck of the occupant during deployment do.

차량 주행중 충돌 사고가 발생하게 되면 차량은 급감속되며 탑승객 신체는 관성에 의해 앞으로 쏠리게 되고 이에 따라 시트벨트(1)의 어깨끈(1a)이 당겨지게 된다.When a collision accident occurs while driving the vehicle, the vehicle is rapidly decelerated, and the passenger's body is moved forward by inertia, and accordingly, the shoulder strap 1a of the seat belt 1 is pulled.

어깨끈(1)이 당겨져 충돌장력센서(5)에 규정치 이상의 장력이 감지되면 충돌 장력감지센서(5)는 충돌신호를 출력하게 되고, 이 충돌신호는 이씨유(6)에 입력됨과 동시에 가속도계에서 신호의 변환값을 받아 에어백(2)의 전개여부를 결정하기 위하여 확실한 충돌상황을 결정하게 된다. 이때, 이씨유(6)로부터 확실한 충돌임이 판단되면, 이씨유(6)는 연결선(7)을 통해 압축가스용기(3)내의 점화구(4)에 통전을 시키게 되어 점화구가 점화된다.When the shoulder strap 1 is pulled and the tension tension sensor 5 detects a tension exceeding a prescribed value, the collision tension sensor 5 outputs a collision signal, which is input to the Lee C. 6 and simultaneously with the accelerometer. In order to determine whether the airbag 2 is deployed by receiving the converted value of the signal, a certain collision situation is determined. At this time, if it is determined that the collision is sure from the Lee C (6), the Lee C (6) energizes the ignition port (4) in the compressed gas container (3) through the connecting line (7) to ignite the ignition.

압축가스용기(3)내의 압축가스는 150 kg/cm2이상 압축된 지르코늄(Zr)과 점화촉진제인 칼륨(K) 및 흡수제인 과염화물 등이 충전되어 있고, 점화구(4)의 점화에 의해 압축가스가 기폭, 연소됨과 동시에 다량의 질소가스가 발생되어 팽창되고, 이 팽창에 의해 압축가스용기(3)내의 격막(3a)이 파괴된다.The compressed gas in the compressed gas container 3 is filled with zirconium (Zr) compressed at 150 kg / cm 2 or more, potassium (K) as an ignition accelerator, perchlorate as an absorbent, and compressed by the ignition of the ignition port 4. As the gas is aerated and combusted, a large amount of nitrogen gas is generated and expanded, and this expansion destroys the diaphragm 3a in the compressed gas container 3.

격막(3a)이 파괴되면 압축가스용기(3)내의 팽창가스가 어깨끈과 수평하게 형성된 배출구(도시안됨)를 통해 에어백(2)에 주입됨으로 에어백(3)이 전개 된다.When the diaphragm 3a is destroyed, the airbag 3 is deployed by expanding gas in the compressed gas container 3 being injected into the airbag 2 through an outlet (not shown) formed horizontally with the shoulder strap.

전개된 에어백(2)은 제 4 도에 도시된 바와같이 탑승객의 목부분을 받쳐주는 동시에 어깨와 가슴을 덮어줌으로 충격력을 완화시켜 주게 되는 것으로 탑승객이 비스듬이 앉아있는 경우에도 시트벨트(1)의 어깨끈(1a)이 탑승객의 자세에 따라 비틀리기 때문에 에어백(2)이 보호해주는 부위는 동일하게 된다.As shown in FIG. 4, the deployed airbag 2 supports the neck of the passenger and at the same time reduces the impact force by covering the shoulders and the chest, even when the passenger is sitting obliquely. Since the shoulder strap (1a) is twisted according to the passenger's posture, the area protected by the airbag (2) will be the same.

즉 탑승객의 자세와 관계없이 충돌사고시 충격력을 효과적으로 완화해줄 수 있게 되는 것이다.In other words, the impact force can be effectively alleviated during a crash regardless of the passenger's posture.

에어백이 구비되지 않은 차량에 상기 에어백(2)을 장착할 경우에는 시트벨트(1)의 어깨끈(1a) 중간에 상기 에어백(2) 및 충돌 장력 감지 센서(5)를 고정설치하는 것만으로 용이하게 장착할 수 있어 에어백을 장착하기 위해 스티어링 휠을 교체하여야 하는 종래의 문제점을 해결할 수 있는 것이다.When the airbag 2 is mounted on a vehicle that does not have an airbag, the airbag 2 and the collision tension sensor 5 may be easily fixed in the middle of the shoulder strap 1a of the seat belt 1. It is possible to solve the conventional problem of replacing the steering wheel in order to mount the airbag can be mounted.

이와같이 본 발명은 시트벨트(1)에 장착되어 충돌사고시 시트벨트(1)에 작용하는 장력에 의해 작동되는 에어백(2)을 제공함으로서 에어백이 구비되지 않은 차량에도 에어백(2)을 용이하게 장착할 수 있게 할 뿐만 아니라 탑승객의 자세에 관계없이 충격력을 효과적으로 완화시켜줄 수 있게하여 충돌사고시 탑승객을 보다 안전하게 보호할 수 있게 한 것이다.As such, the present invention provides an airbag 2 mounted on the seat belt 1 and operated by a tension acting on the seat belt 1 in a crash event, so that the airbag 2 can be easily mounted even in a vehicle without an air bag. In addition to making it possible to effectively mitigate the impact force regardless of the passenger's posture, it was able to protect the passengers in the event of a crash.

Claims (2)

차량 충돌시 전개되어 탑승객을 보호하는 자동차용 에어백에 있어서, 시트벨트(1)의 어깨끈(1a)배면에 구비되어 차량 충돌시 어깨끈(1a)에 작용하는 장력을 감지하여 충돌 신호를 출력하는 충돌 장력 감지센서(5)와, 상기 시트벨트(1)의 어깨끈(1a) 중간에 고정설치된 에어백(2)과, 이 에어백(2)과 연통되는 배출구가 형성된 압축가스용기(3)와, 이 압축가스용기(3)내에 충전된 압축가스를 기폭시키는 점화구(4)와 이 점화구(4)의 일측에서 형성되어 압축가스의 팽창에 의해 파괴되는 격막(3a)과, 상기 충돌 장력 감지센서(5)의 충돌신호를 기초로 상기 점화구(4)를 점화시키는 이씨유(6)로 구성된 것을 특징으로 하는 자동차의 시트벨트에 설치된 에어백.In the airbag for automobiles that are deployed during a vehicle collision to protect passengers, the vehicle is provided on the back of the shoulder strap (1a) of the seat belt (1) to detect the tension acting on the shoulder strap (1a) during the vehicle collision to output a crash signal A compressed gas container (3) having an impingement tension sensor (5), an air bag (2) fixed in the middle of the shoulder strap (1a) of the seat belt (1), and an outlet port communicating with the air bag (2); An ignition port 4 for detonating the compressed gas filled in the compressed gas container 3, a diaphragm 3a formed at one side of the ignition port 4 and destroyed by expansion of the compressed gas, and the collision tension sensor ( Air bag installed in the seat belt of the vehicle, characterized in that consisting of the two I (6) for igniting the ignition port (4) based on the collision signal of 5). 제 1 항에 있어서, 상기 에어백(2)이 전개시 탑승객의 목부분을 받쳐주는 동시에 어깨 및 가슴을 덮을 수 있는 형태가 되도록 제작하여서 된 것을 특징으로 하는 자동차의 시트벨트에 설치된 에어백.2. The airbag installed in a seat belt of a vehicle according to claim 1, wherein the airbag (2) is designed to support the neck of the passenger at the time of deployment and to cover the shoulder and the chest.
KR1019950002318A 1995-02-09 1995-02-09 Air bag installed at the seat belt of a vehicle KR0137240B1 (en)

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KR0137240B1 true KR0137240B1 (en) 1998-04-27

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