Patent ID: 11938888
Assignee: ZF PASSIVE SAFETY SYSTEMS US INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 0:
1. A restraint system for helping to protect an occupant of a vehicle having a roof and a cabin with a seat for the occupant, comprising:
an airbag having a stored condition within the roof and being configured to inflate to a deployed condition extending into the cabin and into alignment with the seat in front of the occupant, the airbag including a first portion configured to be secured to the roof and to extend from a first terminal end portion of the airbag along the roof forward with respect to the occupant, and a second portion configured to extend from an end of the first portion opposite the first terminal end portion of the airbag diagonally downward away from the roof and toward the occupant, the second portion comprising a second terminal end portion configured to engage a lap of the occupant, wherein the second portion has a curved configuration with a convexly curved occupant receiving surface configured to face the occupant when the airbag is inflated, wherein opposite panels of the second portion of the airbag are interconnected to form inverted portions in the panels that define a first weakening of the second portion of the airbag, wherein the second portion is configured to fold away from the occupant at the first weakening in response to occupant penetration into the second portion of the airbag.