Vehicle side airbag device and manufacturing method of a side airbag

摘要

A side airbag device includes: an inflator that is disposed at a side section of a seatback of a vehicle seat and that generates gas on actuation; a side airbag main body that is disposed at the side section and that inflates and deploys at a side of an occupant seated in the vehicle seat due to being supplied with gas from the inflator; and an upper-lower partitioning section that partitions the side airbag main body into an upper inflation section to restrain an upper body of the occupant, and a lower inflation section to restrain a lumbar region of the occupant at a higher internal pressure than the upper inflation section, and that includes a sloped portion sloped toward a seat lower side on progression from a seat front-rear direction center portion toward a seat rear side end portion of the lower inflation section.

主权项

1. A side airbag device comprising:
an inflator that is disposed at a side section of a seatback of a vehicle seat and that generates gas on actuation; a side airbag main body that is disposed at the side section and that is adapted to inflate and deploy at a side of an occupant seated in the vehicle seat due to being supplied with gas from the inflator; and an upper-lower partitioning section that partitions the side airbag main body into an upper inflation section that is adapted to restrain an upper body of the occupant, and a lower inflation section that is adapted to restrain a lumbar region of the occupant at a higher internal pressure than the upper inflation section, and that includes a sloped portion sloped toward a seat lower side on progression from a seat front-rear direction center portion toward a seat rear side end portion of the lower inflation section, wherein a seat front side end portion of the sloped portion is adapted to be provided at a position of a torso line that is an axial line of the upper body of the occupant in a seat side view.