Airbag apparatus
An airbag apparatus includes an airbag, a collision detector, and a deploying-gas supplier. The airbag is configured to be deployed in front of an occupant sitting in a seat of a vehicle. The collision detector includes a sensor and is configured to detect an occurrence or sign of a collision of the vehicle. The deploying-gas supplier is configured to supply deploying gas into the airbag based on an output of the collision detector. The airbag includes a lower-half-restraining bag and upper-half-restraining bags. The lower-half-restraining bag is configured to be deployed in front of knees of the occupant. The upper-half-restraining bags are configured to be deployed between the lower-half-restraining bag and an upper body of the occupant and in a plane that faces the upper body.
1. An airbag apparatus to be applied to a vehicle, the airbag apparatus comprising:
an airbag configured to be deployed in front of an occupant sitting in a seat of the vehicle;
a collision detector comprising a sensor and configured to detect an occurrence or sign of a collision of the vehicle; and
a deploying-gas supplier configured to supply deploying gas into the airbag based on an output of the collision detector,
wherein the airbag comprises
a lower-half-restraining bag configured to be deployed in front of knees of the occupant; and
upper-half-restraining bags configured to be deployed between the lower-half-restraining bag and an upper body of the occupant and in a plane that faces the upper body, and wherein the upper-half-restraining bags comprise
a left bag and a right bag configured to be deployed side by side in a left-right direction; and
a lower bag configured to be deployed below the left bag and the right bag and more rearward of the left bag and the right bag.
2. The airbag apparatus according to claim 1 ,
wherein the lower bag is configured to be supplied with the deploying gas through the lower-half-restraining bag, and
wherein the left bag and the right bag are configured to be supplied with the deploying gas through the lower bag.
3. The airbag apparatus according to claim 2 ,
wherein the left bag and the right bag communicate with each other through an inside of the lower bag.
4. The airbag apparatus according to claim 1 ,
wherein the left bag and the right bag communicate with each other through an inside of the lower bag.
5. The airbag apparatus according to claim 1 ,
wherein the upper-half-restraining bags are each designed to have a spherical shape.
6. An airbag apparatus to be applied to a vehicle, the airbag apparatus comprising:
an airbag configured to be deployed in front of an occupant sitting in a seat of the vehicle;
a collision detector comprising a sensor and configured to detect an occurrence or sign of a collision of the vehicle; and
a deploying-gas supplier configured to supply deploying gas into the airbag based on an output of the collision detector,
wherein the airbag comprises
a lower-half-restraining bag configured to be deployed in front of knees of the occupant; and
upper-half-restraining bags configured to be deployed between the lower-half-restraining bag and an upper body of the occupant and in a plane that faces the upper body, and
wherein the upper-half-restraining bags are each designed to have a spherical shape.
7. The airbag apparatus according to claim 6 ,
wherein the upper-half-restraining bags comprise
a left bag and a right bag configured to be deployed side by side in a left-right direction; and
a lower bag configured to be deployed below the left bag and the right bag.
8. An airbag apparatus to be applied to a vehicle, the airbag apparatus comprising:
an airbag configured to be deployed in front of an occupant sitting in a seat of the vehicle;
a collision detector comprising a sensor and configured to detect an occurrence or sign of a collision of the vehicle; and
a deploying-gas supplier configured to supply deploying gas into the airbag based on an output of the collision detector,
wherein the airbag comprises
a lower-half-restraining bag configured to be deployed in front of knees of the occupant; and
upper-half-restraining bags configured to be deployed between the lower-half-restraining bag and an upper body of the occupant and in a plane that faces the upper body, and
wherein the lower-half-restraining bag has an oval shape with the major axis of that oval shape extending in the top-to-bottom direction.
9. The airbag apparatus according to claim 8 , wherein the upper-half-restraining bags are each designed to have a spherical shape.
10. The airbag apparatus according to claim 8 , wherein the upper-half-restraining bags comprise
a left bag and a right bag configured to be deployed side by side in a left-right direction; and
a lower bag configured to be deployed below the left bag and the right bag.
11. The airbag apparatus according to claim 10 , wherein the lower bag is configured to be deployed more rearward than the left bag and the right bag.