Airbag apparatus for a small size vehicle
First Claim
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1. An airbag apparatus for a vehicle which includes an airbag for constraining a driver on a seat from forward motion through an inflation expansion of the airbag, comprising:
- a main bag portion and an auxiliary bag portion; and
a connecting hole for communicating with an inside of said main bag portionwherein said auxiliary bag portion is inflated and expanded with gas exhausted from said main bag portion through said connecting hole,and when the main air bag portion and the auxiliary bag portion are both inflated and expanded, the auxiliary bag portion is positioned further in a forward and upward direction than is the main bag portion.wherein the auxiliary bag portion constrains the driver after the main bag portion initially constrains the driver.
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Abstract
An airbag apparatus for a small size vehicle that includes an airbag, for constraining a driver on a seat from forward motion through an inflation expansion, that reduces the number of parts and achieves miniaturization of the apparatus while constraining the driver on the seat. The airbag includes a main bag portion and an auxiliary bag portion communicating with the inside of the main bag portion through a connecting hole. The auxiliary bag portion is inflated and expanded with gas exhausted from the main bag portion through the connecting hole.
21 Citations
18 Claims
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1. An airbag apparatus for a vehicle which includes an airbag for constraining a driver on a seat from forward motion through an inflation expansion of the airbag, comprising:
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a main bag portion and an auxiliary bag portion; and a connecting hole for communicating with an inside of said main bag portion wherein said auxiliary bag portion is inflated and expanded with gas exhausted from said main bag portion through said connecting hole, and when the main air bag portion and the auxiliary bag portion are both inflated and expanded, the auxiliary bag portion is positioned further in a forward and upward direction than is the main bag portion. wherein the auxiliary bag portion constrains the driver after the main bag portion initially constrains the driver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An airbag for a vehicle for constraining a driver on a seat from forward motion through an inflation expansion of the airbag, comprising:
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a main bag portion being of a first predetermined size and including an interior portion for receiving a gas for expansion of said main bag portion; an auxiliary bag portion being mounted relative to said main bag portion and being of a second predetermined size, said auxiliary bag portion including an interior portion; and a connecting hole for communicating gas contained within the interior portion of the main bag portion with the interior portion of the auxiliary bag portion; wherein said auxiliary bag portion is inflated and expanded with gas exhausted from said main bag portion through said connecting hole, and when inflated the auxiliary air bag portion extends in a direction substantially upward and forward with respect to the main air bag portion, and wherein the auxiliary bag portion constrains the driver after the main bag portion initially constrains the driver. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An airbag apparatus for a vehicle which includes an airbag for constraining a driver on a seat from forward motion through an inflation expansion of the airbag, comprising:
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a main bag portion and an auxiliary bag portion; and a connecting hole for communicating with an inside of said main bag portion; wherein upon inflating said main air bag portion, said connecting hole is positioned at an arc-shaped section of the main air bag portion which faces in an upward and forward direction, and said auxiliary bag portion is inflated and expanded with gas exhausted from said main bag portion through said connecting hole, and wherein the auxiliary bag portion constrains the driver after the main bag portion initially constrains the driver, wherein prior to expansion of the auxiliary bag portion, the driver on the seat is initially constrained by the main bag portion during the forward motion.
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Specification