Curtain airbag device
AssigneeTakata Corporation
InventorsAtsushi Noguchi, Tetsu Mitsuo
Life of this patent
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Abstract
A curtain airbag includes an inflatable cell below a non-inflatable portion that resists being bent when the curtain airbag is inflated. The curtain airbag has a non-inflatable portion and a plurality of inflatable cells that are disposed in front of, behind, above, and below the non-inflatable portion. The lower-side inflatable cell is formed in a convex shape that projects downwardly. When the curtain airbag is inflated, a tensile force acting to pull up the lower-side inflatable cell is generated in the non-inflatable portion. However, as the inflatable cell is formed in a convex shape that projects downwardly, the inflatable cell resists being pulled up and is, therefore, prevented from being bent.
Claims18
A curtain airbag configured to be deployed downwardly along an inner side surface of a vehicle cabin, the curtain airbag comprising:
- a non-inflatable portion;
- and
- inflatable cells disposed along a front side and a rear side of the non-inflatable portion,
- wherein a first lower-side inflatable cell and a second lower-side inflatable cell are disposed below the non-inflatable portion, and wherein the first and second lower-side inflatable cells each have a middle portion in a longitudinal direction of the lower-side inflatable cells that are formed in a convex shape projecting downwardly;
- wherein the first lower-side inflatable cell and the second lower-side inflatable cell are separated by a concave portion of the airbag that projects upwardly;
- wherein the convex shape of the first lower-side inflatable cell is directly below and directly abutting the non-inflatable portion;
- wherein a center line of the first lower-side inflatable cell has a lowermost point at a middle portion;
- and
- wherein the center line gradually rises from the middle portion toward the front side and the rear side.
A curtain airbag device comprising:
- a curtain airbag configured to be deployed downwardly along an inner side surface of a vehicle cabin;
- and
- a gas generator for supplying gas into the curtain airbag to inflate the curtain airbag,
- wherein a portion of the curtain airbag is non-inflatable,
- wherein inflatable cells are disposed along a front side and a rear side of the non-inflatable portion,
- wherein a lower-side inflatable cell is disposed below the non-inflatable portion,
- wherein the lower-side inflatable cell has a portion in a longitudinal direction of the lower-side inflatable cell that is formed in a convex shape projecting downwardly;
- wherein the portion of the lower-side inflatable cell formed in a convex shape extends in a longitudinal direction of the curtain airbag for a distance that is less than a full length of the curtain airbag;
- wherein the convex shape of the lower-side inflatable cell is directly below and directly abutting the non-inflatable portion;
- wherein a center line of the lower-side inflatable cell has its lowermost point at a middle portion;
- and
- wherein the center line gradually rises from the middle portion toward the front side and the rear side.
A curtain airbag device comprising:
- a curtain airbag configured to be deployed downwardly along an inner side surface of a vehicle cabin;
- and
- a gas generator for supplying gas into the curtain airbag to inflate the curtain airbag,
- wherein a portion of the curtain airbag is non-inflatable,
- wherein inflatable cells are disposed along a front side and a rear side of the non-inflatable portion,
- wherein a first lower-side inflatable cell and a second lower-side inflatable cell are disposed below the non-inflatable portion,
- wherein the first and second lower-side inflatable cells each have a portion in a longitudinal direction of the lower-side inflatable cells that is formed in a convex shape projecting downwardly;
- wherein the first lower-side inflatable cell and the second lower-side inflatable cell are separated by a concave portion of the airbag that projects upwardly;
- wherein the convex shape of the first lower-side inflatable cell is directly below and directly abutting the non-inflatable portion;
- wherein a center line of the first lower-side inflatable cell has a lowermost point at a middle portion;
- and
- wherein the center line gradually rises from the middle portion toward the front side and the rear side.
A curtain airbag configured to be deployed downwardly along an inner side surface of a vehicle cabin, the curtain airbag comprising:
- a non-inflatable portion;
- and
- inflatable cells disposed along a front side and a rear side of the non-inflatable portion,
- wherein a lower-side inflatable cell is disposed below the non-inflatable portion, and wherein the lower-side inflatable cell has a middle portion in a longitudinal direction of the lower-side inflatable cell that is formed in a convex shape projecting downwardly;
- wherein the portion of the lower-side inflatable cell formed in a convex shape extends in a longitudinal direction of the curtain airbag for a distance that is less than a full length of the curtain airbag;
- wherein the convex shape of the lower-side inflatable cell is directly below and directly abutting the non-inflatable portion;
- wherein a center line of the lower-side inflatable cell has its lowermost point at a middle portion, and
- wherein the center line gradually rises from the middle portion toward the front side and the rear side.
Dependencies are inferred from the claim text.