KR100219199B1 - Multistage expansion air bag - Google Patents

Multistage expansion air bag Download PDF

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Publication number
KR100219199B1
KR100219199B1 KR1019970039388A KR19970039388A KR100219199B1 KR 100219199 B1 KR100219199 B1 KR 100219199B1 KR 1019970039388 A KR1019970039388 A KR 1019970039388A KR 19970039388 A KR19970039388 A KR 19970039388A KR 100219199 B1 KR100219199 B1 KR 100219199B1
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KR
South Korea
Prior art keywords
gas
gas generating
chamber
unit
expansion
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KR1019970039388A
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Korean (ko)
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KR19990016730A (en
Inventor
김효수
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오상수
만도기계주식회사
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Priority to KR1019970039388A priority Critical patent/KR100219199B1/en
Publication of KR19990016730A publication Critical patent/KR19990016730A/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
    • B60R21/23—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
    • 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
    • B60R21/263—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 a variable source, e.g. plural stage or controlled output
    • B60R2021/2633—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 a variable source, e.g. plural stage or controlled output with a plurality of inflation levels
    • 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
    • B60R21/264—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 generation of gas, e.g. pyrotechnic
    • B60R2021/2642—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 generation of gas, e.g. pyrotechnic comprising a plurality of combustion chambers or sub-chambers

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

Abstract

본 발명은 에어백 장치에 관한 것으로, 더 상세하게는 승객에 따라 에어백의 팽창정도를 선택적으로 조절할 수 있는 에어백 장치에 관한 것이다.The present invention relates to an airbag device, and more particularly to an airbag device that can selectively adjust the degree of inflation of the airbag according to the passenger.

본 발명에 따른 다단 팽창형 에어백 장치는 팽창부와 가스발생부가 복수의 공간으로 구획되게 마련되어, 조절스위치의 조작을 통해 각 팽창부가 선택적으로 팽창 가능하게 된다. 이로써 승객의 상태에 따라 에어백의 팽창정도를 조절할 수 있게되어, 에어백의 팽창으로 인해 발생되는 상해를 방지하는 이점이 있다.In the multi-stage inflatable airbag apparatus according to the present invention, the inflation portion and the gas generator are divided into a plurality of spaces, and each inflation portion is selectively inflated through the operation of the control switch. As a result, it is possible to adjust the degree of inflation of the airbag according to the state of the passenger, there is an advantage of preventing the injury caused by the expansion of the airbag.

Description

다단 팽창형 에어백 장치Multistage inflatable airbag device

본 발명은 에어백 장치에 관한 것으로, 더 상세하게는 에어백 장치의 가스발생부와 팽창부가 다단으로 마련되어, 승객의 상태에 따라 에어백의 팽창정도를 선택적으로 조절할 수 있는 에어백 장치에 관한 것이다.The present invention relates to an airbag apparatus, and more particularly, to an airbag apparatus provided with a multi-stage gas generating unit and an inflating unit, which can selectively adjust the degree of inflation of the airbag according to the state of the passenger.

일반적으로 에어백 장치는 차량의 조향핸들이나 조수석 전면부 등에 설치되어, 차량 사고시 탑승자를 충격으로부터 보호해주는 역할을 하는 것이다.In general, the airbag device is installed in the steering wheel of the vehicle or the front of the passenger seat, and serves to protect the occupant from the impact in the event of a vehicle accident.

이러한 종래의 에어백 장치는 도 1과 도 2에 도시된 바와 같이, 그 내부에 가스가 충진되면 팽창이 되는 팽창부(10)와, 팽창부(10)에 충진되는 가스를 발생시키는 가스발생부(20)로 구분된다.As shown in FIGS. 1 and 2, the conventional airbag apparatus includes an expansion part 10 that expands when gas is filled therein, and a gas generator that generates gas filled in the expansion part 10. 20).

상기 가스발생부(20)는 그 중심부에 화약이 내장된 점화부(21)와 장약실(22)이 마련되고, 그 외측으로 가스발생제가 구비된 연소실(23)이 형성되며, 연소실(23)의 외측에는 필터가 설치된 필터실(24)이 마련되어 있다. 상기 장약실(22)과 연소실(23) 그리고 필터실(24)은 구획판(25a,25b)에 의해 구획되어 있으며, 이들은 배출공(26a,26b)에 의해 상호 연통되어 있다. 그리고 가스발생부(20)의 외측면에는 필터실(24)을 지난 가스가 상기 팽창부(20)의 내측으로 분사되도록 다수의 분사공(27)이 형성되어 있다.The gas generator 20 is provided with an ignition unit 21 and a charge chamber 22 in which the gunpowder is embedded, and a combustion chamber 23 provided with a gas generating agent is formed outside the combustion chamber 23. The filter chamber 24 provided with the filter is provided in the outer side of the inside. The charging chamber 22, the combustion chamber 23, and the filter chamber 24 are partitioned by partition plates 25a and 25b, which are communicated with each other by discharge holes 26a and 26b. In addition, a plurality of injection holes 27 are formed on the outer surface of the gas generator 20 so that the gas passing through the filter chamber 24 is injected into the expansion part 20.

이와 같이 구성된 종래의 에어백 장치는 차량이 충돌되면 센서(미도시)에 의해 충돌신호가 제어부(28)에 전달되고, 제어부(28)는 가스발생부(20) 내의 점화부(21)를 점화시켜 장약실(22)의 화약을 폭파시킨다. 이때, 화염이 배출공(26a)을 통해 연소실(23)로 유출되고, 이 화염에 의해 연소실(23)의 가스발생제는 질소가스를 발생시키게 된다. 이 질소가스가 필터실(24)을 거쳐, 상기 분사공(27)을 통해 분출됨으로써 도 2에 도시된 바와 같이, 에어백의 팽창부(10)가 팽창되는 것이다.In the conventional airbag apparatus configured as described above, when a vehicle collides, a collision signal is transmitted to the control unit 28 by a sensor (not shown), and the control unit 28 ignites the ignition unit 21 in the gas generating unit 20. Blow up the gunpowder in the charge chamber (22). At this time, the flame flows into the combustion chamber 23 through the discharge hole 26a, and the gas generating agent of the combustion chamber 23 generates nitrogen gas by the flame. This nitrogen gas is blown through the filter chamber 24 and through the injection hole 27, thereby expanding the inflating portion 10 of the air bag, as shown in FIG.

그러나 이러한 종래의 에어백 장치는 차량이 충격을 받게 되면, 상기 가스발생부(20)에서는 항상 일정량의 가스를 발생시키게 되고, 이에 따라 에어백의 팽창부(10)는 항상 일정한 팽창력으로 팽창되게 된다. 이로 인해 키가 작은 어린이 승객이나, 노약자가 탑승을 할 경우에는 에어백의 팽창력에 의해 승객이 상해를 입는 문제가 발생되었다.However, in the conventional airbag apparatus, when the vehicle is impacted, the gas generator 20 always generates a certain amount of gas, and thus the inflating portion 10 of the airbag is always inflated with a constant inflation force. As a result, when a small child passenger or an elderly person rides, the passenger is injured by the inflating force of the airbag.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 승객에 따라 에어백의 팽창정도를 선택적으로 조절할 수 있는 에어백 장치를 제공하는 것이다.The present invention is to solve such a problem, it is an object of the present invention to provide an airbag device that can selectively adjust the degree of expansion of the airbag according to the passenger.

도 1은 종래 에어백 장치의 개략적인 구성을 보인 단면도이다.1 is a cross-sectional view showing a schematic configuration of a conventional airbag apparatus.

도 2는 종래 에어백 장치의 구성을 보인 단면도로 팽창상태를 도시한 것이다.Figure 2 is a cross-sectional view showing the configuration of a conventional airbag device showing an inflated state.

도 3은 본 발명에 따른 에어백 장치의 개략적인 구성을 보인 단면도이다.3 is a cross-sectional view showing a schematic configuration of an airbag apparatus according to the present invention.

도 4는 본 발명에 따른 에어백 장치의 구성을 보인 단면도로 부분 팽창상태를 도시한 것이다.Figure 4 is a cross-sectional view showing the configuration of the airbag apparatus according to the present invention shows a partially inflated state.

도 5는 본 발명에 따른 에어백 장치의 구성을 보인 단면도로 완전 팽창상태를 도시한 것이다.5 is a cross-sectional view showing the configuration of the airbag apparatus according to the present invention showing a fully inflated state.

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

30: 팽창부 31: 구획막30: expansion portion 31: partition membrane

40: 가스발생부40: gas generator

41a,41b: 구획벽 42a,42b,42c: 가스발생실41a, 41b: partition walls 42a, 42b, 42c: gas generating chamber

43: 점화부 44: 장약실43: ignition unit 44: charge chamber

45: 연소실 46: 필터실45: combustion chamber 46: filter chamber

47a,47b: 구획판 48a,48b: 배출공47a, 47b: partition plate 48a, 48b: discharge hole

49: 분사공 50: 제어부49: injection hole 50: control unit

상기의 목적을 달성하기 위한 본 발명은, 내부에 가스가 채워져 팽창이 되는 팽창부, 상기 팽창부에 충진되는 가스를 발생시키는 가스발생부, 상기 가스발생부에 전기신호를 주어 상기 가스발생부를 점화 시키는 제어부가 구비된 에어백 장치에 있어서,The present invention for achieving the above object, the gas is filled in the expansion portion is expanded, the gas generator for generating a gas filled in the expansion portion, the gas generating unit to give an electrical signal to the gas generator ignition An airbag apparatus provided with a control unit for

상기 팽창부는 구획막에 의해 복수의 공간으로 구획되게 마련되고, 상기 가스발생부는 상기 팽창부의 각 공간에 대응이 되는 복수의 가스발생실이 구획되게 마련되며, 상기 제어부는 상기 각 가스발생실을 독립적으로 점화시킬 수 있도록 마련되며, 상기 가스발생실이 선택적으로 점화되어 상기 팽창부가 부분적으로 팽창되도록 상기 제어부에 승객에 대한 정보를 입력하는 조절스위치가 마련된 것을 특징으로 한다.The expansion unit is partitioned into a plurality of spaces by partition membranes, and the gas generating unit is provided so that a plurality of gas generating chambers corresponding to the respective spaces of the expansion unit are partitioned, and the control unit independently separates each gas generating chamber. It is provided so as to ignite, and the gas generating chamber is selectively ignited, characterized in that the control switch is provided for inputting information about the passenger to the control unit so that the expansion portion is partially expanded.

이하에서는 본 발명의 바람직한 실시예를 첨부 도면을 참조하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 에어백 장치는 도 3에 도시된 바와 같이, 그 내부에 가스가 충진되어 팽창이 되는 팽창부(30)와, 이 팽창부(30)에 충진이 되는 가스를 발생시키는 가스발생부(40)로 크게 구분된다.As shown in FIG. 3, the airbag apparatus according to the present invention includes an inflating unit 30 in which gas is filled and expanded therein, and a gas generating unit generating gas inflating the inflating unit 30 ( 40).

상기 팽창부(30)는 그 내부의 공간을 구획하는 두 개의 구획막(31)에 의해 구획된다. 따라서 팽창부(30)는 제 1팽창부(32), 제 2팽창부(33), 제 3팽창부(34)로 구분이 된다. 이 팽창부(30)는 나일론재의 섬유로 마련되며, 평소에는 접혀서 보관 되었다가 에어백 장치의 작동에 의해 그 내부로 가스가 유입되면 팽창이 되게 된다.The expansion part 30 is partitioned by two partition membranes 31 partitioning the space therein. Therefore, the expansion part 30 is divided into the first expansion part 32, the second expansion part 33, and the third expansion part 34. The inflation portion 30 is made of a fiber made of nylon, and is normally folded and stored and then expanded when gas is introduced into the air by the operation of the airbag device.

상기 가스발생부(40)는 그 내부의 공간이 상기 팽창부(30)의 각 공간(32,33,34)에 대응되도록 구획벽(41a,41b)에 의해 구획이된 복수개의 가스발생실(42a,42b,42c)로 마련되는데, 상기 제 1팽창부(32)와 연통되게 마련된 제 1가스발생실(42a)과 상기 제 2,제 3팽창부(33,34)와 연통이된 제 2, 제 3가스발생실(42b,42c)이 각각 독립적으로 마련된다.The gas generating unit 40 includes a plurality of gas generating chambers partitioned by partition walls 41a and 41b such that the space therein corresponds to each of the spaces 32, 33, and 34 of the expansion unit 30. 42a, 42b, and 42c, the first gas generating chamber 42a provided in communication with the first expansion part 32 and the second communicating with the second and third expansion parts 33,34. The third gas generating chambers 42b and 42c are provided independently of each other.

각 가스발생실(42a,42b,42c)에는 그 중심부에 화약이 내장된 점화부(43)와 장약실(44)이 마련되고, 가스발생제가 구비된 연소실(45)과, 필터가 설치된 필터실(46)이 마련된다. 상기 장약실(44)과 연소실(45) 그리고 필터실(46)은 구획판(47a,47b)에 의해 구획이 되며, 이들은 배출공(48a,48b)에 의해 상호 연통된다. 그리고 각 가스발생실(42a,42b,42c)의 상부에는 필터실(46)을 지나 정제된 가스가 상기 각 팽창부(32,33,34)의 내측으로 분사되도록 분사공(49)이 형성된다.In each of the gas generating chambers 42a, 42b, and 42c, an ignition unit 43 and a charging chamber 44 in which gunpowder is embedded are provided in the center, a combustion chamber 45 equipped with a gas generating agent, and a filter chamber in which a filter is installed. (46) is provided. The charging chamber 44, the combustion chamber 45, and the filter chamber 46 are partitioned by partition plates 47a and 47b, which are communicated with each other by the discharge holes 48a and 48b. In addition, an injection hole 49 is formed at an upper portion of each of the gas generating chambers 42a, 42b, and 42c such that the purified gas passing through the filter chamber 46 is injected into the respective expansion portions 32, 33, and 34. .

이와 같이 구성된 에어백 장치는 차량이 충돌되면 센서(미도시)에 의해 충돌신호가 제어부(50)에 전달되고, 제어부(50)는 가스발생부(40) 내의 점화부(43)를 점화시켜 장약실(44)의 화약을 폭파시킨다. 이때, 화염이 배출공(48a)을 통해 연소실(45)로 유출되고, 이 화염에 의해 연소실(45)의 가스발생제는 질소가스를 발생시키게 된다. 이 질소가스가 필터실(46)을 거쳐, 상기 분사공(49)을 통해 팽창부(30)의 내측으로 분출됨으로써 에어백 장치의 팽창부(30)가 팽창되게 된다.In the airbag device configured as described above, when a vehicle collides, a collision signal is transmitted to the controller 50 by a sensor (not shown), and the controller 50 ignites the ignition unit 43 in the gas generator 40 to charge the cabinet. Blow up the gunpowder of (44). At this time, the flame flows into the combustion chamber 45 through the discharge hole 48a, and the gas generating agent of the combustion chamber 45 generates nitrogen gas by the flame. The nitrogen gas is injected into the inflation section 30 through the injection hole 49 through the filter chamber 46, thereby expanding the inflation section 30 of the airbag apparatus.

본 발명에 따른 에어백 장치는 각각 구획된 가스발생실(42a,42b,42c)과 팽창부(30)가 마련됨으로써 사용자의 의지에 따라 선택적으로 팽창부위를 조절할 수 있게 된다.In the airbag apparatus according to the present invention, the gas generating chambers 42a, 42b, and 42c and the inflating unit 30 are respectively partitioned to selectively adjust the inflating site according to the user's will.

이를 위하여 본 발명에 따른 에어백 장치는 도면에 도시되지는 않았지만, 차량의 적소에 조절스위치가 마련되어, 사용자가 승객의 상태를 판단하여 에어백의 팽창 정도를 조절할 수 있게 된다. 즉, 어린이나 노약자 승객의 탑승시와 성인승객의 탑승시를 구분하여 에어백의 팽창정도를 조절할 수 있게 된다.To this end, although the airbag device according to the present invention is not shown in the drawing, an adjustment switch is provided in place of the vehicle so that the user can determine the state of the passenger to adjust the degree of inflation of the airbag. In other words, it is possible to adjust the degree of inflation of the airbag by distinguishing when boarding a child or an elderly passenger and an adult passenger.

어린이나 노약자 승객의 탑승시에는, 조절스위치(미도시)의 조작에 의해 승객에 대한 정보가 에어백의 제어부(50)에 전해진다. 따라서 차량이 충돌시 제어부(50)는 상기 가스발생부(40)의 각 가스발생실중 일부에 전기신호를 주게 되고, 도 4에 도시된 바와 같이 전기신호를 받은 가스발생실(42a)에서만 가스가 발생되어, 팽창부(30)가 부분적으로 팽창되게 된다.When a child or an elderly passenger rides, information about a passenger is transmitted to the control part 50 of an airbag by operation of an adjustment switch (not shown). Therefore, when the vehicle collides, the control unit 50 gives an electric signal to some of the gas generating chambers of the gas generating unit 40, and the gas only in the gas generating chamber 42a which receives the electric signal as shown in FIG. Is generated so that the inflation section 30 is partially inflated.

이때, 상기 팽창부(30)는 팽창시 외측으로 노출이 되는 부분은 코팅이 되어 가스의 유출입이 제한되게 마련되고, 각 공간을 구획하는 구획막(31)은 코팅이 되지않은 섬유로 마련되어, 부분적으로 팽창이 된 팽창부(32)에서 인접 팽창부(33)로 서서히 가스가 유입되게 하는 것이 바람직하다.At this time, the expansion portion 30 is exposed to the outside when the expansion is provided with a coating is limited to the inflow and outflow of gas, the partition membrane 31 partitioning each space is provided with an uncoated fiber, partially In this case, it is preferable to allow gas to gradually flow from the expanded portion 32 expanded to the adjacent expanded portion 33.

이와 반대로 성인 승객이 탑승할 경우에는 상기 조절스위치(미도시)를 통해 제어부(50)에 정보를 줌으로써, 차량이 충돌시 각 가스발생부(40)에서 동시에 가스가 분출된다. 따라서 도 5에 도시된 바와 같이, 모든 팽창부(32,33,34)에 동시에 가스가 유입되어, 에어백은 보다 넓은 면적이 큰 팽창력으로 팽창되게 된다.On the contrary, when an adult passenger boards the vehicle, information is provided to the controller 50 through the control switch (not shown), so that gas is ejected from each gas generator 40 at the same time when the vehicle collides. Therefore, as shown in FIG. 5, gas is introduced into all the inflating portions 32, 33, and 34 simultaneously, so that the airbag is inflated with a larger inflation force.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 다단 팽창형 에어백 장치는 팽창부와 가스발생부가 복수의 공간으로 구획되게 마련되어, 조절스위치의 조작을 통해 각 팽창부가 선택적으로 팽창되게 된다. 이로써 승객의 상태에 따라 에어백의 팽창정도를 조절할 수 있게되어, 에어백의 팽창으로 인해 발생되는 상해를 방지하는 이점이 있다.As described above in detail, the multi-stage inflatable airbag device according to the present invention is provided with the inflation portion and the gas generating portion partitioned into a plurality of spaces, and each inflation portion is selectively inflated through the operation of the control switch. As a result, it is possible to adjust the degree of inflation of the airbag according to the state of the passenger, there is an advantage of preventing the injury caused by the expansion of the airbag.

Claims (3)

내부에 가스가 채워져 팽창이 되는 팽창부, 상기 팽창부에 충진되는 가스를 발생시키는 가스발생부, 상기 가스발생부에 전기신호를 주어 상기 가스발생부를 점화 시키는 제어부가 구비된 에어백 장치에 있어서,An airbag apparatus having an expansion part in which gas is expanded to expand, a gas generation part generating gas filled in the expansion part, and a control unit igniting the gas generating part by giving an electric signal to the gas generating part. 상기 팽창부는 구획막에 의해 복수의 공간으로 구획되게 마련되고, 상기 가스발생부는 상기 팽창부의 각 공간에 대응이 되는 복수의 가스발생실이 구획되게 마련되며, 상기 제어부는 상기 각 가스발생실을 독립적으로 점화시킬 수 있도록 마련되며, 상기 가스발생실이 선택적으로 점화되어 상기 팽창부가 부분적으로 팽창되도록 상기 제어부에 승객에 대한 정보를 입력하는 조절스위치가 마련된 것을 특징으로 하는 다단 팽창형 에어백 장치.The expansion unit is partitioned into a plurality of spaces by partition membranes, and the gas generating unit is provided so that a plurality of gas generating chambers corresponding to the respective spaces of the expansion unit are partitioned, and the control unit independently separates each gas generating chamber. And a control switch for inputting information on the passenger to the control unit so that the gas generating chamber is selectively ignited to partially inflate the expansion unit. 제 1항에 있어서,The method of claim 1, 상기 구획막은 코팅이 되지않은 섬유로 마련되어, 부분적으로 팽창이 된 상기 팽창부에서 인접 팽창부로 서서히 가스가 유입되게 된 것을 특징으로 하는 다단 팽창형 에어백 장치.The partition membrane is a multi-stage inflatable airbag device, characterized in that the gas is introduced into the inflated portion from the inflated portion is partially made of uncoated fiber. 제 1항에 있어서,The method of claim 1, 상기 각 가스 발생실은 점화부와 장약실이 마련되고, 가스발생제가 구비된 연소실, 필터가 설치된 필터실이 구비된 것을 특징으로 하는 다단 팽창형 에어백 장치.Each gas generating chamber is provided with an ignition unit and a charging chamber, a combustion chamber equipped with a gas generating agent, and a multi-stage inflatable airbag device, characterized in that the filter chamber is provided with a filter.
KR1019970039388A 1997-08-19 1997-08-19 Multistage expansion air bag KR100219199B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100863633B1 (en) * 2006-10-31 2008-10-15 현대자동차주식회사 The complex blasting cap apparatus of the air bag for vehicle, and the control method
KR100894538B1 (en) * 2008-07-08 2009-04-24 주식회사 코리아파츠 The air-bag with multi-layer structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020066112A (en) * 2001-02-09 2002-08-14 오토리브 만도 주식회사 Air Bag Device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100863633B1 (en) * 2006-10-31 2008-10-15 현대자동차주식회사 The complex blasting cap apparatus of the air bag for vehicle, and the control method
KR100894538B1 (en) * 2008-07-08 2009-04-24 주식회사 코리아파츠 The air-bag with multi-layer structure
WO2010005240A2 (en) * 2008-07-08 2010-01-14 주식회사 코리아파츠 Airbag having a multilayer structure
WO2010005240A3 (en) * 2008-07-08 2010-04-29 주식회사 코리아파츠 Airbag having a multilayer structure

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