Air bag device and method for accommodating an air bag in the air bag device
First Claim
1. An air bag device for installation in a vehicle and for protecting a vehicle occupant, which allows an air bag accommodated in a folded state to inflate to unfold due to gas ejected from an inflator,wherein:
- the air bag is accommodated in the air bag device in such a manner that the flat, unfolder air bag is folded to form an elongated folded body, the elongated folded body is roll-folded from both ends to wrap these ends inside a roll so as to form a pair of opposing roll-shaped folded bodies, the pair of roll-shaped folded bodies are disposed facing a vehicle occupant and the roll-shaped folded bodies are spaced apart from one another to form a space therebetween, the space extending in a direction generally orthogonal to a direction towards the vehicle occupant wherein a length dimension of each of the pair of roll-shaped folded bodies and the space between the pair of roll-shaped bodies are all equal to each other.
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0 Petitions
Accused Products
Abstract
An air bag device is structured in such a manner that an air bag can expand entirely and uniformly in a three-dimensional manner from the center thereof in the radial directions and in the forward direction of the air bag device all through the process in which the air bag inflates to unfold. The flat, unfolded air bag is folded from both ends thereof to form an elongated folding body, and the elongated folding body is folded from both longitudinal-directional ends thereof toward the side opposite to that where gas ejecting holes of the inflator are formed in such a manner as to wrap these ends inside, and a pair of roll-shaped folding bodies are thereby formed. Further, a preceding expanding and first folding portion provided to expand first is formed in a space between the pair of roll-shaped folding bodies.
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Citations
9 Claims
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1. An air bag device for installation in a vehicle and for protecting a vehicle occupant, which allows an air bag accommodated in a folded state to inflate to unfold due to gas ejected from an inflator,
wherein: - the air bag is accommodated in the air bag device in such a manner that the flat, unfolder air bag is folded to form an elongated folded body, the elongated folded body is roll-folded from both ends to wrap these ends inside a roll so as to form a pair of opposing roll-shaped folded bodies, the pair of roll-shaped folded bodies are disposed facing a vehicle occupant and the roll-shaped folded bodies are spaced apart from one another to form a space therebetween, the space extending in a direction generally orthogonal to a direction towards the vehicle occupant
wherein a length dimension of each of the pair of roll-shaped folded bodies and the space between the pair of roll-shaped bodies are all equal to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- the air bag is accommodated in the air bag device in such a manner that the flat, unfolder air bag is folded to form an elongated folded body, the elongated folded body is roll-folded from both ends to wrap these ends inside a roll so as to form a pair of opposing roll-shaped folded bodies, the pair of roll-shaped folded bodies are disposed facing a vehicle occupant and the roll-shaped folded bodies are spaced apart from one another to form a space therebetween, the space extending in a direction generally orthogonal to a direction towards the vehicle occupant
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9. An air bag device for installation in a vehicle and for protecting a vehicle occupant, which allows an air bag accommodated in a folded state to inflate to unfold due to gas ejected from an inflator,
wherein: - the air bag is accommodated in the air bag device in such a manner that the flat, unfolded air bag is folded to form an elongated folded body, the elongated folded body is roll-folded from both ends to wrap these ends inside a roll so as to form a pair of opposing roll-shaped folded bodies, the pair of roll-shaped folded bodies are disposed facing a vehicle occupant and the roll-shaped folded bodies are spaced apart from one another to form a space therebetween, the space extending in a direction generally orthogonal to a direction towards the vehicle occupant
wherein the inflator includes an outer diameter and the space has a length dimension extending between the pair of roll-shaped bodies and said length dimension is equal to the outer diameter of the inflator.
- the air bag is accommodated in the air bag device in such a manner that the flat, unfolded air bag is folded to form an elongated folded body, the elongated folded body is roll-folded from both ends to wrap these ends inside a roll so as to form a pair of opposing roll-shaped folded bodies, the pair of roll-shaped folded bodies are disposed facing a vehicle occupant and the roll-shaped folded bodies are spaced apart from one another to form a space therebetween, the space extending in a direction generally orthogonal to a direction towards the vehicle occupant
Specification
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- Resources
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Current AssigneeKabushiki Kaisha Tokai RIKA Denki Seisakusho
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Original AssigneeKabushiki Kaisha Tokai RIKA Denki Seisakusho
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InventorsMaeda, Itoshi, Kawaguchi, Teruhiko
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Primary Examiner(s)Swann, J. J.
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Assistant Examiner(s)LUM VANNUCCI, LEE SIN YEE
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Application NumberUS09/110,896Time in Patent Office931 DaysField of Search280/728.1, 280/728.3US Class Current280/728.1CPC Class CodesB60R 21/237 characterised by the way th...
