KR20090089978A - Air bag for vehicle - Google Patents

Air bag for vehicle Download PDF

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Publication number
KR20090089978A
KR20090089978A KR1020080015177A KR20080015177A KR20090089978A KR 20090089978 A KR20090089978 A KR 20090089978A KR 1020080015177 A KR1020080015177 A KR 1020080015177A KR 20080015177 A KR20080015177 A KR 20080015177A KR 20090089978 A KR20090089978 A KR 20090089978A
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KR
South Korea
Prior art keywords
cushion
airbag
control
airbag cushion
air bag
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Application number
KR1020080015177A
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Korean (ko)
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KR100947995B1 (en
Inventor
박두연
홍익표
정경원
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델파이코리아 주식회사
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Priority to KR1020080015177A priority Critical patent/KR100947995B1/en
Publication of KR20090089978A publication Critical patent/KR20090089978A/en
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Publication of KR100947995B1 publication Critical patent/KR100947995B1/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
    • B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
    • 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
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • 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
    • B60R21/2342—Tear seams
    • 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
    • B60R2021/01238—Expansion of air bags control of expansion shape
    • 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
    • B60R2021/23107—Inflatable members characterised by their shape, construction or spatial configuration the bag being integrated in a multi-bag system
    • 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
    • B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
    • B60R2021/23324—Inner walls crating separate compartments, e.g. communicating with vents
    • B60R2021/23332—Inner walls crating separate compartments, e.g. communicating with vents using independent bags, one within the other

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

Abstract

An air bag for a vehicle which limits movement and protects passenger from impact is provided to protect the passenger, supply an airbag cushion and limit the movement of the passenger. An air bag for vehicle includes an airbag cushion and a control cushion(30). The air bag cushion is fixed to an airbag cover(10). In the control cushion is the outer side of the air bag cushion, the air bag cushion is surrounded. The control cushion is fixed with the airbag cover air bag cushion while surrounding the external front of the air bag cushion. The expanded volume of the control cushion is smaller than the expanded volume of the air bag cushion. A fracture unit(40) is formed on one side of the control cushion.

Description

자동차용 에어백{Air Bag For Vehicle}Air Bag For Vehicle

본 발명은 자동차 충돌시 승객이 받는 충격을 완화하기 위한 에어백에 관한 것으로, 특히 에어백 전개시 볼륨이 2단계로 변경되어 승객의 이동을 막고 충격에서 보호할 수 있도록 하는 자동차용 에어백에 관한 것이다.The present invention relates to an airbag for mitigating a shock received by a passenger in an automobile crash, and more particularly, to an airbag for a vehicle that prevents a passenger from moving and protects from an impact by changing the volume in two stages when the airbag is deployed.

일반적으로, 에어백은 자동차에 쓰이는 것으로 충돌사고가 났을 때 생기는 충격력이나 고속주행중의 급정거를 감지할 수 있는 센서를 구비하여, 사고시 충격 강도에 따른 센서의 신호에 따라 에어백 속에 팽창가스를 주입하여 급속히 팽창시킴으로써 운전자는 물론 탑승자를 부상으로부터 최대한 보호하기 위한 안전장치이다.In general, the airbag is used in automobiles and has a sensor that can detect the impact force generated in a crash accident or sudden stop during high-speed driving, and inflate rapidly by injecting an inflation gas into the airbag according to the signal of the sensor according to the impact intensity in case of an accident. This is a safety device to protect the driver as well as the passenger from injury.

또한, 자동차를 사용함에 있어 에어백은 한번도 작동하지 않을 수도 있지만 사고시에는 정상적으로 작동해야 하며, 작동하지 않아야 할 때 오작동 되는 일이 없어야 하므로 장치의 높은 신뢰도가 요구되는 안전장치이다.In addition, in using a car, the airbag may never operate, but in case of an accident, the airbag should operate normally, and when it should not operate, it should not malfunction so it is a safety device that requires high reliability of the device.

이러한 에어백은 통상적으로 운전석의 스티어링휠과 조수석의 인스트루먼트 패널에 각각 설치되고, 차량의 충돌시 충돌감지센서와 전자제어유닛에 의해 안전벨트와 같이 연동되어 탑승자를 부상으로부터 최대한 보호하게 된다.These airbags are typically installed on the steering wheel of the driver's seat and the instrument panel of the passenger seat, respectively, and interlocked with the seat belt by the collision detection sensor and the electronic control unit when the vehicle collides to protect the occupant from injury as much as possible.

즉, 차량의 충돌시, 충돌감지센서가 이의 감지신호를 전자제어유닛(ECU)으로 출력하고, 상기 전자제어유닛(ECU)은 충격강도에 따라 에어백의 작동 여부를 판단하여 에어백을 작동시킬 필요가 있을 때에는 인플레이터를 작동시켜 에어백을 팽창시킨다.That is, in the event of a collision of the vehicle, the collision detection sensor outputs its detection signal to the electronic control unit (ECU), and the electronic control unit (ECU) needs to determine whether the air bag is operated according to the impact strength to operate the air bag. If present, operate the inflator to inflate the airbag.

이때, 인플레이터는 에어백에 연결되어 있어, 전자제어유닛(ECU)에 의해 그 내부의 점화장치가 화약을 착화시키고 가스 발생제를 연소시킴으로써, 순간적으로 발생된 다량의 가스가 에어백으로 주입되어 에어백을 급속하게 팽창시키게 된다.At this time, the inflator is connected to the airbag, and by the electronic control unit (ECU), the ignition device therein ignites the gunpowder and burns the gas generating agent. Inflated.

이때, 에어백은 자동차에 탄 승객이 충돌에 의한 상해로부터 보호할 뿐 아니라 승객의 움직임을 최소화하여 미끄러짐 등으로 인해 에어백의 보호 위치에서 벗어나지 않도록 하여야 한다.In this case, the airbag should not only protect the passenger in the car from injury due to a collision, but also minimize the movement of the passenger so as not to depart from the protection position of the airbag due to slippage.

그러나 종래의 에어백은 에어백 전개시 에어백 쿠션이 부피의 변화 없이 한번에 팽창하여 승객을 충격으로부터 보호하였으나 초기에 승객의 움직임을 제한하는 데는 어려움이 있었다.However, the conventional airbags protect the passengers from impact by inflating the airbag cushion at a time without changing the volume when the airbag is deployed, but it is difficult to initially limit the movement of the passengers.

본 발명의 목적은 상술한 바와 같은 문제점을 해결하기 위한 것으로서, 에어백 전개시 에어백 쿠션의 볼륨에 변화를 주어 승객의 움직임을 제한함과 동시에 승객을 충격으로부터 보호하는 에어백을 제공하는 것이다.An object of the present invention is to solve the above problems, to provide an airbag that protects the passenger from impact while limiting the movement of the passenger by changing the volume of the airbag cushion during deployment of the airbag.

상기 목적을 달성하기 위해 본 발명의 자동차용 에어백은 에어백 커버에 고정되는 에어백 쿠션과, 상기 에어백 쿠션의 외측으로 에어백 쿠션을 감싸는 제어 쿠션으로 구성된 것을 특징으로 한다.In order to achieve the above object, the airbag for a vehicle of the present invention is characterized by consisting of an airbag cushion fixed to an airbag cover, and a control cushion surrounding the airbag cushion to the outside of the airbag cushion.

또한, 상기 제어 쿠션은 에어백 쿠션의 외측 전체를 감싸며 에어백 커버 에어백 쿠션과 함께 고정되고, 상기 제어 쿠션의 팽창된 부피는 에어백 쿠션의 팽창된 부피보다 작도록 형성되는 것을 특징으로 한다.In addition, the control cushion surrounds the entire outer side of the airbag cushion and is fixed together with the airbag cover airbag cushion, characterized in that the inflated volume of the control cushion is formed to be smaller than the inflated volume of the airbag cushion.

또한, 상기 제어 쿠션은 에어백 쿠션의 상측 부분의 외측을 감싸며 에어백 쿠션의 일측에 고정되고, 상기 제어 쿠션의 팽창된 부피는 팽창된 에어백 쿠션에서 상측의 부피보다 작도록 형성되는 것을 특징으로 한다.In addition, the control cushion is wrapped around the outside of the upper portion of the airbag cushion is fixed to one side of the airbag cushion, characterized in that the inflated volume of the control cushion is formed to be smaller than the volume of the upper side in the inflated airbag cushion.

또한, 상기 제어 쿠션은 에어백 쿠션의 일측 끝에 고정되어 에어백 쿠션을 감싸며 반대편 측의 상측에 고정되고, 상기 제어 쿠션의 팽창된 부피는 팽창된 에 어백 쿠션의 부피보다 작도록 형성되는 것을 특징으로 한다.In addition, the control cushion is fixed to one end of the airbag cushion is wrapped around the airbag cushion and is fixed to the upper side of the opposite side, characterized in that the expanded volume of the control cushion is formed to be smaller than the volume of the inflated airbag cushion.

또한, 상기 제어 쿠션의 일측에는 파단부가 형성된 것을 특징으로 한다.In addition, one side of the control cushion is characterized in that the break is formed.

또한, 상기 제어쿠션은 봉제 또는 본딩을 통해 에어백 쿠션에 고정하는 것을 특징으로 한다.In addition, the control cushion is characterized in that fixed to the airbag cushion through sewing or bonding.

상술한 바와 같이, 본 발명에 따른 자동차용 에어백에 의하면 초기 전개시 작고 단단한 에어백 쿠션을 제공하여 승객의 움직임을 제한하고, 일정 힘 이상이 가해지면 크고 푹신한 에어백 쿠션으로 바뀌어 승객을 안전하게 보호한다.As described above, according to the present invention, the airbag for a vehicle according to the present invention provides a small and firm airbag cushion at initial deployment to limit the movement of the passenger, and when a certain force is applied, the airbag cushion is changed into a large and soft airbag cushion to protect the passenger.

이하, 첨부한 도면에 의거하여 본 발명의 양호한 실시예들을 상세히 설명하는데, 이하의 설명에 있어서는 도면 중 동일 부분에 대해 동일 부호를 부여하고 그 반복 설명은 생략한다.Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are given to the same parts in the drawings, and the repeated description thereof will be omitted.

제1실시예First embodiment

본 발명에 따른 에어백은 도 1에 도시된 바와 같이 에어백 커버(10)에 고정되는 에어백 쿠션(20)과, 상기 에어백 쿠션(20)을 외측에서 감싸는 제어 쿠션(30)으로 구성된다. As shown in FIG. 1, the airbag according to the present invention includes an airbag cushion 20 fixed to the airbag cover 10, and a control cushion 30 wrapping the airbag cushion 20 from the outside.

여기서, 상기 제어 쿠션(30)이 팽창되었을 때의 부피는 에어백 쿠션(20)이 팽창되었을 때의 부피보다 작도록 형성되고, 에어백 쿠션(20)은 제어 쿠션(30)의 내측에 삽입되어 에어백 커버(10)에 함께 고정된다. Here, the volume when the control cushion 30 is inflated is formed to be smaller than the volume when the airbag cushion 20 is inflated, the airbag cushion 20 is inserted into the control cushion 30 to cover the airbag 10 is fixed together.

또한, 제어 쿠션(30)의 일측에는 파단부(40)가 형성되어 필요에 따라 제어 쿠션(30)의 파단이 용이하도록 한다.In addition, the break 40 is formed on one side of the control cushion 30 to facilitate breaking of the control cushion 30 as necessary.

이에 따라, 에어백이 전개되었을 때 에어백 쿠션(20)의 부피보다 에어백 쿠션(20)을 감싸고 있는 제어 쿠션(30)의 부피가 작으므로 상기 제어 쿠션(30)에 의해 에어백 쿠션(20)의 크기가 제한되고 단단하게 된다.Accordingly, since the volume of the control cushion 30 surrounding the airbag cushion 20 is smaller than the volume of the airbag cushion 20 when the airbag is deployed, the size of the airbag cushion 20 is increased by the control cushion 30. Become limited and hard.

그리고, 일정 힘이 가해지면 제어 쿠션(30)의 파단부(40)가 파단되어 전개가 제한되어 있던 에어백 쿠션(20)이 마저 전개되며, 전개가 이루어지고 나면 부피가 크고 전개가 제한되어 있을 때보다 푹신한 에어백 쿠션(20')이 된다.Then, when a certain force is applied, the breakage portion 40 of the control cushion 30 is broken and the airbag cushion 20, which has been limited in deployment, is even deployed, and when the deployment is made, the volume is large and the deployment is limited. It becomes the soft airbag cushion 20 '.

제2실시예Second embodiment

한편, 본 발명은 다른 예로써 구성될 수 있다. On the other hand, the present invention can be configured by other examples.

도 2에 도시된 바와 같이 에어백 쿠션(20)의 상측에 제어 쿠션(30')을 고정할 수 있다.As shown in FIG. 2, the control cushion 30 ′ may be fixed to the upper side of the airbag cushion 20.

여기서, 제어 쿠션(30')은 전개된 에어백 쿠션(20)의 상측 부피보다 작은 부피가 되도록 형성하여 에어백 쿠션(20) 상측의 부피가 제어 쿠션(30')에 의해 제한된다. Here, the control cushion 30 'is formed to be a volume smaller than the upper volume of the deployed airbag cushion 20 so that the volume above the airbag cushion 20 is limited by the control cushion 30'.

또한, 전술한 실시예와 같이 상기 제어 쿠션(30')의 일측에는 파단부(40')가 형성되어 일정 힘이 가해지면 제어 쿠션(30')의 파단부(40')가 파단되어 전개가 제한되어 있던 에어백 쿠션(20)이 마저 전개되도록 한다.In addition, as shown in the above-described embodiment, when the breakage portion 40 'is formed at one side of the control cushion 30' and a predetermined force is applied, the breakage portion 40 'of the control cushion 30' is broken to develop. The limited airbag cushion 20 is even deployed.

제3실시예Third embodiment

한편, 본 발명은 또 다른 예로써 구성될 수 있다.On the other hand, the present invention can be configured as another example.

도 3 및 도 4에 도시된 바와 같이 에어백 쿠션(20)의 일측 끝단에 제어 쿠 션(30")이 함께 고정되고, 제어 쿠션(30")의 타측은 에어백 쿠션(20)을 둘러 반대편 상측에 고정할 수 있다.As shown in FIGS. 3 and 4, the control cushion 30 ″ is fixed together at one end of the airbag cushion 20, and the other side of the control cushion 30 ″ surrounds the airbag cushion 20 on the opposite side. Can be fixed

또한, 전술한 실시예들과 같이 상기 제어 쿠션(30")의 일측에는 파단부(40")가 형성되어 일정 힘이 가해지면 파단부(40")가 파단되어 전개가 제한되어 있던 에어백 쿠션(20)이 마저 전개되도록 한다.In addition, as shown in the above-described embodiments, a breakage portion 40 ″ is formed at one side of the control cushion 30 ″, and when a predetermined force is applied, the breakage portion 40 ″ is broken to limit deployment of the airbag cushion ( 20) is even developed.

한편, 제1실시예 내지 제3실시예에서 상기 제어 쿠션(30, 30', 30")은 봉제 또는 본딩을 통해 에어백 쿠션(20)에 고정되는 것이 좋다.Meanwhile, in the first to third embodiments, the control cushions 30, 30 ′, 30 ″ may be fixed to the airbag cushion 20 through sewing or bonding.

상기와 같이 제어 쿠션을 갖는 에어백의 작동은 다음과 같다.Operation of the airbag having a control cushion as described above is as follows.

우선, 제1실시예에 따라 형성된 에어백은 충돌을 감지하여 에어백이 작동하면 인플레이터(미도시)에 의해 에어백 쿠션(20) 내로 가스가 주입되고, 이에 따라 에어백 쿠션(20)이 팽창하며, 팽창하는 에어백 쿠션(20)에 의해 제어 쿠션(30)도 팽창한다.First, the airbag formed according to the first embodiment detects a collision and when the airbag is operated, gas is injected into the airbag cushion 20 by an inflator (not shown), whereby the airbag cushion 20 expands and expands. The control cushion 30 is also inflated by the airbag cushion 20.

여기서 팽창된 에어백 쿠션(20)은 에어백 쿠션(20)보다 부피가 작은 제어 쿠션(30)에 의해 팽창이 제한되고 단단한 쿠션을 형성하여 승객을 지지하고, 단단한 쿠션에 의해 승객이 미끄러지거나 좌석에서 벗어나는 것을 방지한다. The inflated airbag cushion 20 is limited to inflation by the control cushion 30 having a smaller volume than the airbag cushion 20 and forms a hard cushion to support the passenger, and the passenger may slip or get out of the seat by the hard cushion. To prevent them.

그 후, 에어백 쿠션(20)이 지속적으로 팽창하여 일정 힘 이상이 가해지면 팽창하는 에어백 쿠션(20)의 힘에 의해 제어 쿠션(30)의 파단부(40)가 뜯어지게 된다.Thereafter, when the airbag cushion 20 is continuously inflated and a predetermined force or more is applied, the breakage portion 40 of the control cushion 30 is torn off by the force of the inflating airbag cushion 20.

그리고, 제어 쿠션(30)의 파단부(40)가 뜯어짐에 따라 제어 쿠션(30)에 의해 제한되어 있던 에어백 쿠션(20)이 좀 더 팽창되고 초기보다 부피가 크고 푹신한 에 어백 쿠션(20')을 형성하여 승객을 충격으로부터 보호한다.As the breakage portion 40 of the control cushion 30 is torn off, the airbag cushion 20, which is limited by the control cushion 30, expands more and is bulkier and softer than the initial airbag cushion 20 ′. Protect passengers from shocks.

한편, 도 2에 도시된 바와 같이, 제2실시예에 따라 형성된 에어백 또한 충돌을 감지하여 에어백이 작동하면 인플레이터(미도시)에 의해 에어백 쿠션(20) 내로 가스가 주입되고, 이에 따라 에어백 쿠션(20)이 팽창하며, 팽창하는 에어백 쿠션(20)에 의해 제어 쿠션(30')도 함께 팽창한다.On the other hand, as shown in Figure 2, the airbag formed in accordance with the second embodiment also detects a collision when the airbag is operating gas is injected into the airbag cushion 20 by an inflator (not shown), accordingly the airbag cushion ( 20 is inflated, and the control cushion 30 'is also inflated by the inflating airbag cushion 20. FIG.

에어백 쿠션(20)의 상측에만 고정된 제어 쿠션(30')의 경우도 전술한 실시예와 마찬가지로 초기에 에어백 쿠션(20)이 팽창할 때 제어 쿠션(30')에 의해 에어백 쿠션(20)의 상측은 작고 단단한 쿠션을 형성한다.In the case of the control cushion 30 'fixed only to the upper side of the airbag cushion 20, as in the above-described embodiment, the airbag cushion 20 The upper side forms a small rigid cushion.

이후 에어백 쿠션(20)이 지속적으로 팽창하여 일정 힘 이상이 가해지면 팽창하는 에어백 쿠션(20)의 힘에 의해 제어 쿠션(30')의 파단부(40')가 뜯어져 에어백 쿠션(20)이 팽창하여 초기보다 부피가 크고 푹신한 에어백 쿠션(20')을 형성한다.After the airbag cushion 20 is continuously inflated and a predetermined force or more is applied, the breakage portion 40 'of the control cushion 30' is broken by the force of the inflating airbag cushion 20, so that the airbag cushion 20 is broken. It expands to form a bulky and fluffy airbag cushion 20 'than the initial one.

또한, 도 3 및 도 4에 도시된 바와 같이, 제3실시예에 따라 형성된 에어백 또한 에어백 작동에 따라 팽창하는 에어백 쿠션(20)에 의해 제어 쿠션(30")도 함께 팽창한다.3 and 4, the airbag formed according to the third embodiment also inflates the control cushion 30 " by the airbag cushion 20, which expands according to the airbag operation.

여기서, 에어백 쿠션(20)의 일면과 상측을 둘러 타면 중앙부에 고정된 제어 쿠션(30")은 일면과 상측의 전개가 제한된다. 이에 따라 전개가 제한되는 부분의 방향을 선택하여 제어 쿠션(30")이 고정되는 측면을 변경하여 설치할 수 있다.Here, the control cushion 30 "fixed to the center portion of the airbag cushion 20 surrounding the one side and the upper side is limited in the development of one side and the upper side. Accordingly, the control cushion 30 is selected by selecting the direction of the portion where the deployment is restricted. It can be installed by changing the side where ") is fixed.

이후 에어백 쿠션(20)의 지속적인 팽창에 의해 파단부(40)가 뜯어져 에어백 쿠션(20)이 팽창하여 초기보다 팽창된 에어백 쿠션(20')을 형성한다.Thereafter, the breakage portion 40 is torn off by the continuous inflation of the airbag cushion 20, thereby expanding the airbag cushion 20 to form an inflated airbag cushion 20 '.

이에 따라, 제어 쿠션(30, 30', 30")에 의해 팽창이 제한되어 초반에 형성된 작고 단단한 에어백 쿠션(20)은 자동차에 탑승한 승객을 받쳐주는 역할을 하여 승객이 미끄러지거나 에어백의 보호 범위에서 벗어나는 것을 방지한다.Accordingly, the small, hard airbag cushion 20 formed at the beginning due to limited inflation by the control cushions 30, 30 ', and 30 "serves to support the passenger in the vehicle, thereby preventing the passenger from slipping or protecting the airbag. To prevent you from falling out.

또한, 초기 팽창 이후 일정 힘이 가해져 제어 쿠션(30, 30', 30")이 파단되어 에어백 쿠션(20)이 더 팽창되면 초기보다 부피가 크고 푹신하게 된 에어백 쿠션(20')은 반동에 의한 충격으로부터 승객을 보호한다.In addition, if a predetermined force is applied after the initial inflation, the control cushions 30, 30 ', and 30 "are broken so that the airbag cushion 20 is further inflated. Protect passengers from shocks.

도 1은 본 발명에 따른 에어백 쿠션 및 전개 모습을 나타낸 도면.1 is a view showing the airbag cushion and deployment state according to the present invention.

도 2는 본 발명에 따른 에어백 쿠션의 다른 실시예를 나타낸 도면.Figure 2 shows another embodiment of an airbag cushion according to the present invention.

* 도면의 주요 구성에 대한 부호의 설명 * Explanation of symbols on the main components of the drawings

10 : 에어백 커버10: airbag cover

20, 20' : 에어백 쿠션 20, 20 ': airbag cushion

30, 30' : 제어 쿠션30, 30 ': control cushion

40, 40' : 파단부40, 40 ': Breaking part

Claims (6)

에어백 커버에 고정되는 에어백 쿠션과,An airbag cushion fixed to the airbag cover, 상기 에어백 쿠션의 외측으로 에어백 쿠션을 감싸는 제어 쿠션으로 구성된 것을 특징으로 하는 자동차용 에어백.An airbag for an automobile, characterized in that consisting of a control cushion surrounding the airbag cushion to the outside of the airbag cushion. 제1항에 있어서,The method of claim 1, 상기 제어 쿠션은 에어백 쿠션의 외측 전체를 감싸며 에어백 커버 에어백 쿠션과 함께 고정되고, 상기 제어 쿠션의 팽창된 부피는 에어백 쿠션의 팽창된 부피보다 작도록 형성되는 것을 특징으로 하는 자동차용 에어백.And the control cushion wraps around the outside of the airbag cushion and is secured together with the airbag cover airbag cushion, wherein the inflated volume of the control cushion is formed to be smaller than the inflated volume of the airbag cushion. 제1항에 있어서,The method of claim 1, 상기 제어 쿠션은 에어백 쿠션의 상측 부분의 외측을 감싸며 에어백 쿠션의 일측에 고정되고, 상기 제어 쿠션의 팽창된 부피는 팽창된 에어백 쿠션에서 상측의 부피보다 작도록 형성되는 것을 특징으로 하는 자동차용 에어백.The control cushion is wrapped around the outside of the upper portion of the airbag cushion and fixed to one side of the airbag cushion, the inflated volume of the control cushion is formed to be smaller than the volume of the upper side in the inflated airbag cushion. 제1항에 있어서,The method of claim 1, 상기 제어 쿠션은 에어백 쿠션의 일측 끝에 고정되어 에어백 쿠션을 감싸며 반대편 측의 상측에 고정되고, 상기 제어 쿠션의 팽창된 부피는 팽창된 에어백 쿠션의 부피보다 작도록 형성되는 것을 특징으로 하는 자동차용 에어백.The control cushion is fixed to one end of the airbag cushion wraps around the airbag cushion and is fixed to the upper side of the opposite side, the inflated volume of the control cushion is formed to be smaller than the volume of the inflated airbag cushion. 제2항 내지 제4항 중 어느 한 항에 있어서,The method according to any one of claims 2 to 4, 상기 제어 쿠션의 일측에는 파단부가 형성된 것을 특징으로 하는 자동차용 에어백.One side of the control cushion is an automobile airbag, characterized in that the break is formed. 제5항에 있어서,The method of claim 5, 상기 제어쿠션은 봉제 또는 본딩을 통해 에어백 쿠션에 고정하는 것을 특징으로 하는 자동차용 에어백.The control cushion is a car airbag, characterized in that fixed to the airbag cushion through sewing or bonding.
KR1020080015177A 2008-02-20 2008-02-20 Air Bag For Vehicle KR100947995B1 (en)

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