Floor-mounted occupant restraint system

A restraint system for helping to protect an occupant of a vehicle having a floor, a roof, and a cabin with a seat for the occupant, comprising:

• an airbag having a stored condition on the vehicle floor and being inflatable to a deployed condition aligned with the occupant in a forward-rearward direction of the vehicle and configured to receive a lower torso of the occupant penetrating into the airbag;
• at least one tether having a first end connected to the airbag and a second end connected to the vehicle floor for transmitting energy of the occupant penetrating the airbag to the vehicle floor;
• at least one actuation unit for connecting the second end of each tether to the floor, the actuation unit being actuatable during deployment of the airbag to tension each tether for pulling the airbag towards the lower torso of the occupant;
• and
• at least one guide element provided on the floor for guiding each tether to each respective actuation unit.

A restraint system for helping to protect an occupant of a vehicle having a floor, a roof, and a cabin with a seat for the occupant, comprising:

• an airbag having a stored condition on the vehicle floor and being inflatable to a deployed condition aligned with the occupant in a forward-rearward direction of the vehicle and configured to receive a lower torso of the occupant penetrating into the airbag;
• at least one tether having a first end connected to the airbag and a second end connected to the vehicle floor for transmitting energy of the occupant penetrating the airbag to the vehicle floor;
• at least one actuation unit for connecting the second end of each tether to the floor, the actuation unit being actuatable during deployment of the airbag to tension each tether for pulling the airbag towards the lower torso of the occupant;
• wherein the floor includes a toe board and the airbag is configured to deploy upwards and away from the toe board;
• and
• wherein the restraint system further comprises an actuator for pivoting the airbag from a first position within the floor prior to deployment to a second position located above the floor prior to actuation of the at least one actuation unit.

A restraint system for helping to protect an occupant of a vehicle having a floor, a roof, and a cabin with a seat for the occupant, comprising:

• a first airbag having a stored condition on the vehicle floor and being inflatable to a deployed condition aligned with the occupant in a forward-rearward direction of the vehicle and configured to receive a lower torso of the occupant penetrating into the first airbag;
• first and second tethers each having a first end connected to the first airbag and a second end connected to the vehicle floor for transmitting energy of the occupant penetrating the first airbag to the vehicle floor;
• first and second actuation units for connecting the second ends of the first and second tethers to the floor, the first and second actuation units being actuatable during deployment of the first airbag to tension each tether for pulling the first airbag towards the lower torso of the occupant;
• and
• a second airbag having a stored condition in the roof of the vehicle and being inflatable to a deployed condition in which a lower end of the second airbag is positioned between an upper end of the first airbag and the occupant such that the first airbag is a reaction surface for the second airbag.