Airbag apparatus for a front passenger's seat
First Claim
1. An airbag apparatus for a front passenger'"'"'s seat of a vehicle, the apparatus comprising:
- an airbag including a generally rectangular opening for taking inflation gas therein;
an inflator that is cylindrical in contour and feeds the airbag with the inflation gas, the inflator including on an outer circumferential plane of a vicinity of an end plane thereof a cut-out region which is cut out along an up and down direction;
a case for housing the airbag and the inflator, the case being made of sheet metal and formed into a top-open box that includes a bottom wall and a circumferential wall extending in a tubular fashion from an outer peripheral edge of the bottom wall, wherein the bottom wall includes;
a set-in opening that is opened in a generally identical contour to an outer contour of the inflator as laid along a left and right direction and viewed from above;
a housing region that houses the inflator, the housing region being recessed from front and rear peripheries of the set-in opening in a generally half-pipe fashion and supporting lower circumferential planes of opposite ends of the inflator with left and right end regions of inner surfaces of the housing region;
mounting seats of the airbag, the mounting seats being located in the front and rear peripheries of the set-in opening;
lateral movement stopping sections that position opposite end planes of the inflator set in the housing region and prevent the inflator from moving in an axial direction, the lateral movement stopping sections being located on end planes of sheet metal material extending from the mounting seats at left and right peripheries of the set-in opening; and
a rotation stopping section that prevents the inflator from rotating in a circumferential direction about an axial center, the rotation stopping section being comprised of a sheet metal region extending from one of the mounting seats in at least either left or right periphery of the set-in opening, for engagement with the cut-out region of the inflator; and
a retainer that secures the airbag and inflator to the case, the retainer being generally square annular in contour and including flat plate sections that are located at front and rear sides and formed respectively into a flat plate according to contour of the mounting seats of the case, and curved sections that are located on left and right sides and curved according to figures of upper circumferential planes of vicinities of opposite end regions of the inflator, such that the retainer is mounted on the mounting seats with securing means while pressing a generally square annular mounting area in a hem of the opening of the airbag against the upper circumferential planes of the vicinities of the opposite end regions of the inflator and the mounting seats of the case, whereinthe lateral movement stopping sections regulate a position of the opposite end planes of the inflator only by storing the inflator in the housing region of the bottom wall of the case from above via an opening of the circumferential wall of the case, andthe rotation stopping section is engaged with the cut-out region of the inflator so as to prevent the inflator from rotating only by storing the inflator in the housing region of the bottom wall of the case from above via the opening of the circumferential wall of the case.
1 Assignment
0 Petitions
Accused Products
Abstract
A passenger airbag apparatus includes an airbag, an inflator, a case and a retainer. The case includes on a bottom wall a set-in opening through which the inflator is set in, a housing region that holds and houses the inflator, a mounting seat on which the airbag is mounted, lateral movement stopping sections that prevent the inflator from moving in an axial direction, and a rotation stopping section that prevents the inflator from rotating in a circumferential direction. The inflator includes a cut-out region engageable with the rotation stopping section. The retainer is secured to the mounting seats of the case with bolts while pressing a hem of an opening of the airbag against an upper circumferential plane of the inflator and the mounting seats, thus mounting the airbag and inflator on the case.
10 Citations
8 Claims
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1. An airbag apparatus for a front passenger'"'"'s seat of a vehicle, the apparatus comprising:
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an airbag including a generally rectangular opening for taking inflation gas therein; an inflator that is cylindrical in contour and feeds the airbag with the inflation gas, the inflator including on an outer circumferential plane of a vicinity of an end plane thereof a cut-out region which is cut out along an up and down direction; a case for housing the airbag and the inflator, the case being made of sheet metal and formed into a top-open box that includes a bottom wall and a circumferential wall extending in a tubular fashion from an outer peripheral edge of the bottom wall, wherein the bottom wall includes; a set-in opening that is opened in a generally identical contour to an outer contour of the inflator as laid along a left and right direction and viewed from above; a housing region that houses the inflator, the housing region being recessed from front and rear peripheries of the set-in opening in a generally half-pipe fashion and supporting lower circumferential planes of opposite ends of the inflator with left and right end regions of inner surfaces of the housing region; mounting seats of the airbag, the mounting seats being located in the front and rear peripheries of the set-in opening; lateral movement stopping sections that position opposite end planes of the inflator set in the housing region and prevent the inflator from moving in an axial direction, the lateral movement stopping sections being located on end planes of sheet metal material extending from the mounting seats at left and right peripheries of the set-in opening; and a rotation stopping section that prevents the inflator from rotating in a circumferential direction about an axial center, the rotation stopping section being comprised of a sheet metal region extending from one of the mounting seats in at least either left or right periphery of the set-in opening, for engagement with the cut-out region of the inflator; and a retainer that secures the airbag and inflator to the case, the retainer being generally square annular in contour and including flat plate sections that are located at front and rear sides and formed respectively into a flat plate according to contour of the mounting seats of the case, and curved sections that are located on left and right sides and curved according to figures of upper circumferential planes of vicinities of opposite end regions of the inflator, such that the retainer is mounted on the mounting seats with securing means while pressing a generally square annular mounting area in a hem of the opening of the airbag against the upper circumferential planes of the vicinities of the opposite end regions of the inflator and the mounting seats of the case, wherein the lateral movement stopping sections regulate a position of the opposite end planes of the inflator only by storing the inflator in the housing region of the bottom wall of the case from above via an opening of the circumferential wall of the case, and the rotation stopping section is engaged with the cut-out region of the inflator so as to prevent the inflator from rotating only by storing the inflator in the housing region of the bottom wall of the case from above via the opening of the circumferential wall of the case. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification