Gas generating apparatus for air bag apparatus and method for inflating air bag
First Claim
1. A gas generating apparatus for an air bag apparatus, comprising:
- a first chamber accommodating a combustible fluid and provided with a first vent opening which is in communication with an air bag;
a second chamber which is larger than said first chamber and which accommodates at least one of a combustible fluid and an inert fluid;
a first occluding member for occluding said first vent opening; and
ignition means for igniting the combustible fluid in said first chamber;
wherein at least a portion of the combustible fluid in said first chamber is burnt, thereby discharging the fluid in said first and second chambers through said first vent opening to inflate said air bag.
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Accused Products
Abstract
The present invention relates to a gas generating apparatus for an air bag apparatus mounted in a vehicle or the like for protecting a passenger of the vehicle by charging a gas into an air bag interposed between the passenger and an interior member of the vehicle chamber so as to inflate the air bag at the time of collision of the vehicle. The gas generating apparatus for the air bag apparatus includes a first chamber 9 which accommodates a combustible fluid 7 and which is provided with a first vent opening 8 leading to the air bag 3; a second chamber 5 larger than the first chamber 9; a first occluding member 13 for occluding the first vent opening 8; and an ignition device 14 for igniting the combustible fluid in the first chamber 9. By burning at least a portion of the combustible fluid 7 within the first chamber 9, the fluid in the first and second chambers 9 and 5 is discharged through the first vent opening 8 to inflate the air bag 3. Since, the first occluding member is swiftly broken to discharge a mixture of the combustible fluid in the first chamber, it is possible to shorten the initial responding time period required to start inflating the air bag.
23 Citations
44 Claims
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1. A gas generating apparatus for an air bag apparatus, comprising:
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a first chamber accommodating a combustible fluid and provided with a first vent opening which is in communication with an air bag;
a second chamber which is larger than said first chamber and which accommodates at least one of a combustible fluid and an inert fluid;
a first occluding member for occluding said first vent opening; and
ignition means for igniting the combustible fluid in said first chamber;
whereinat least a portion of the combustible fluid in said first chamber is burnt, thereby discharging the fluid in said first and second chambers through said first vent opening to inflate said air bag. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A gas generating apparatus for an air bag apparatus, comprising:
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a first chamber accommodating a combustible fluid and provided with a first vent opening which is in communication with an air bag;
a second chamber which is larger than said first chamber and which accommodates at least one of a combustible fluid and an inert fluid;
a first occluding member for occluding said first vent opening, a second vent opening for bringing said first chamber and said second chamber into communication with each other;
a second occluding member for occluding said second vent opening;
a third vent opening for bringing said first chamber and said second chamber into communication with each other said third vent opening having at least one of a sectional area smaller than that of said second vent opening and a length longer than that of said second vent opening; and
ignition means for igniting the combustible fluid in said first chamber;
whereinat least a portion of the combustible fluid in said first chamber is burnt by said ignition means, a fluid in said second chamber is at least one of burnt and expanded in said third vent opening, a fluid in said first chamber is discharged from said first vent opening, and the fluid in said second chamber is discharged from said first vent opening through at least said second vent opening, thereby inflating said air bag. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A gas generating apparatus for an air bag apparatus, comprising:
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a first chamber accommodating a combustible fuel and having a first vent opening; and
a second chamber including a partition wall having a second vent opening and a third vent opening;
whereina portion of combustion product created in said first chamber is passed through said third vent opening and introduced into said second chamber, a combustion product created in said second chamber is introduced from said second vent opening into said first chamber, and the combustion products created in said first and second chambers are discharged from said first vent opening.
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43. A gas generating apparatus for an air bag apparatus, comprising:
- at least two chambers capable of communicating with each other; and
a fluid accommodated in each of said chambers;
wherein one of said two chambers includes an ignition member, the fluid accommodated in at least said one chamber is combustible fluid, the combustible fluid is ignited in said one chamber, and both said fluids are discharged from said one chamber where the combustible fluid is ignited.
- at least two chambers capable of communicating with each other; and
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44. A method of inflating an air bag, wherein the bag is inflated by a gas generating apparatus comprising a first chamber having an ignition member, a second chamber, and a combustible fluid accommodated in at least the first chamber, said method comprising the steps of:
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igniting the combustible fluid in said first chamber by the ignition member;
introducing, into said second chamber, at least a portion of a combustion fluid mixture created in said igniting step;
introducing, into the air bag, at least a portion of said combustion fluid mixture created in said igniting step; and
introducing at least a portion of said combustion fluid mixture within said second chamber from said second chamber through said first chamber into the air bag.
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Specification