Leg protection system and vehicle having the same
First Claim
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1. A leg protection system for protecting a leg of an occupant, comprising:
- one airbag for protecting an ankle and a knee of the occupant, the airbag comprisinga first chamber,a second chamber separate from the first chamber, andat least one duct connecting the first chamber and the second chamber for providing communication therebetween; and
an inflator connected to the airbag for inflating the airbag,wherein said first and second chambers are spaced apart from each other by a predetermined distance, and are connected together by the at least one duct, said at least one duct having a width less than those of the first and second chambers;
said one airbag comprises a front panel and a rear panel joined together along a first connection at peripheries thereof, and along second connections at a middle portion between the front panel and the rear panel in a vertical direction, respectively, so as to divide the one airbag into the first chamber, the second chamber, and the at least one duct;
said second connections extend toward a center area of the airbag from left and right sides between the front panel and the rear panel in the vertical direction;
each of the second connections has a substantially U-shape with one side extending vertically and two other sides extending laterally parallel to an upper side and a lower side of the front panel and the rear panel;
wherein in each U-shaped connection, the one vertical side extends continuously between the two other sides;
the vertically extending sides face each other at the middle portion of the front panel and the rear panel in the lateral direction; and
a space between the vertically extending sides defines one duct.
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Abstract
A leg protection system includes an airbag that deploys in front of a leg of an occupant seated in a vehicle seat. The airbag first deploys in front of an ankle or an instep of the leg, and then deploys upwardly along the leg. An airbag may include an ankle bag that deploys only in front of the ankle or the instep, and a knee bag that deploys only in front of the knee. A vehicle may further include a closing panel for blocking a space between a lower end of an instrument panel and a dash panel.
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Citations
4 Claims
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1. A leg protection system for protecting a leg of an occupant, comprising:
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one airbag for protecting an ankle and a knee of the occupant, the airbag comprising a first chamber, a second chamber separate from the first chamber, and at least one duct connecting the first chamber and the second chamber for providing communication therebetween; and an inflator connected to the airbag for inflating the airbag, wherein said first and second chambers are spaced apart from each other by a predetermined distance, and are connected together by the at least one duct, said at least one duct having a width less than those of the first and second chambers; said one airbag comprises a front panel and a rear panel joined together along a first connection at peripheries thereof, and along second connections at a middle portion between the front panel and the rear panel in a vertical direction, respectively, so as to divide the one airbag into the first chamber, the second chamber, and the at least one duct; said second connections extend toward a center area of the airbag from left and right sides between the front panel and the rear panel in the vertical direction; each of the second connections has a substantially U-shape with one side extending vertically and two other sides extending laterally parallel to an upper side and a lower side of the front panel and the rear panel; wherein in each U-shaped connection, the one vertical side extends continuously between the two other sides; the vertically extending sides face each other at the middle portion of the front panel and the rear panel in the lateral direction; and a space between the vertically extending sides defines one duct. - View Dependent Claims (2, 3, 4)
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Specification