Airbag and airbag apparatus
First Claim
1. An airbag capable of being expanded by gas from a gas generator, the airbag comprising:
- a front panel portion disposed at an occupant side, and a rear panel portion disposed at a side opposite to the occupant;
an attaching opening for the gas generator provided in a center of the rear panel portion;
an inner panel disposed inside the airbag, partitioning an internal part of the airbag into a first chamber at a center thereof and a second chamber surrounding the first chamber; and
at least one opening, provided in the inner panel, for allowing the first chamber to communicate with the second chamber, wherein an opening area of the at least one opening is from 40 cm2 to 700 cm2.
0 Assignments
0 Petitions
Accused Products
Abstract
An airbag includes a first and a second inner panel that partition the internal part of the airbag into a first chamber, and a second chamber surrounding the first chamber. Rear-side openings that allow the first chamber to communicate with the second chamber are provided in the second inner panel. Front-side openings are provided in the first inner panel. A sum of the opening areas of the rear-side openings is greater than a sum of the opening areas of the front-side openings. The sum of the opening areas of each of the rear-side openings and the front-side openings is greater than a sum of the opening areas of vent holes. As a result, the gas generated by a gas generator is discharged from the rear-side opening in the radial direction in a large quantity, and the airbag expands quickly in the radial direction.
71 Citations
14 Claims
-
1. An airbag capable of being expanded by gas from a gas generator, the airbag comprising:
-
a front panel portion disposed at an occupant side, and a rear panel portion disposed at a side opposite to the occupant;
an attaching opening for the gas generator provided in a center of the rear panel portion;
an inner panel disposed inside the airbag, partitioning an internal part of the airbag into a first chamber at a center thereof and a second chamber surrounding the first chamber; and
at least one opening, provided in the inner panel, for allowing the first chamber to communicate with the second chamber, wherein an opening area of the at least one opening is from 40 cm2 to 700 cm2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification