Patent ID: 11878645
Assignee: AUTOLIV DEVELOPMENT AB
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A knee airbag device, comprising:
an airbag configured to restrain a lower extremity of an occupant by expanding and deploying below an instrument panel of a vehicle toward the occupant wearing a seat belt in the vehicle; and
an inflator that supplies expansion gas to the airbag, wherein:
the seat belt is configured to extend diagonally from a top of a shoulder on one side of the occupant to a waist on another side of the occupant,
the airbag includes, when the other side is a first side and the one side is a second side, a first portion positioned toward the first side and a second portion positioned toward the second side,
the airbag further includes an upper portion and a lower portion, wherein the upper portion, during a deployed state, protrudes more toward an occupant side than the lower portion, and
the first portion of the airbag protrudes more toward the occupant side than the second portion, wherein an occupant side of the first portion is configured to contact a first knee of the occupant before an occupant side of the second portion contacts a second knee of the occupant to suppress rotation of the lower extremity of the occupant.