US 12,403,861 B2
Vehicle external airbag device for vehicle
Hayato Aiuchi, Tokyo (JP); Yuka Abe, Tokyo (JP); and Daisuke Ototsuji, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Mar. 18, 2024, as Appl. No. 18/608,076.
Claims priority of application No. 2023-070659 (JP), filed on Apr. 24, 2023.
Prior Publication US 2024/0351551 A1, Oct. 24, 2024
Int. Cl. B60R 21/36 (2011.01)
CPC B60R 21/36 (2013.01) 7 Claims
OG exemplary drawing
 
1. A vehicle external airbag device for a vehicle comprising a cabin, the vehicle external airbag device comprising a vehicle external airbag configured to, with supply of a high-pressure gas of an inflator, deploy, in the vehicle, rearward of the vehicle from between a nose in front of the cabin and a front glass of the cabin, so as to deploy over the front glass, the vehicle external airbag comprising:
a central bag configured to deploy in a center of the vehicle in a vehicle width direction of the vehicle;
a right bag joined to a right side of the central bag in the vehicle width direction, and configured to deploy to extend rearward of the central bag in the vehicle so as to overlap a front pillar on a right side of the front glass in the vehicle width direction; and
a left bag joined to a left side of the central bag in the vehicle width direction, and configured to deploy to extend rearward of the central bag in the vehicle so as to overlap a front pillar on a left side of the front glass in the vehicle width direction,
wherein the high-pressure gas supplied by the inflator to the vehicle external airbag is preferentially supplied to the central bag rather than the right bag and the left bag at least at a time when vehicle external airbag starts to deploy,
wherein the central bag has a bag with one air chamber including:
a central deployer coupled to the inflator, and configured to deploy to spread in the vehicle width direction with the supply of the high-pressure gas of the inflator;
a right deployer provided on a right side of the central deployer in the vehicle width direction, and configured to deploy rearward of the central deployer in the vehicle with a length shorter than the right bag; and
a left deployer provided on a left side of the central deployer in the vehicle width direction, and configured to deploy rearward of the central deployer in the vehicle with a length shorter than the left bag,
wherein the right bag is joined to the right deployer of the central bag by a right joint with a length in a front-rear direction of the vehicle,
wherein the left bag is joined to the left deployer of the central bag by a left joint with a length in the front-rear direction of the vehicle,
wherein the vehicle external airbag further comprises:
a first right communication hole allowing the central bag to communicate with the right bag; and
a first left communication hole allowing the central bag to communicate with the left bag,
wherein the first right communication hole is disposed in the right joint and disposed rearward of a rear edge of the central deployer, and
wherein the first left communication hole is disposed in the right joint and disposed rearward of the rear edge of the central deployer.