Vehicle passenger protecting device having a side airbag and a curtain airbag with an enlarged inflating portion

Patent metadata

Field	Value
Publication number	US-12583407-B2
Application number	US-202519043568-A
Country	US
Kind code	B2
Filing date	Feb 3, 2025
Priority date	Feb 20, 2024
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

A vehicle passenger protecting device includes: a side airbag installed in a side portion at an outer side of a seatback of a vehicle seat, and inflating and expanding toward an outer side of a passenger seated on the vehicle seat due to gas being supplied at a time of a side collision of a vehicle; and a curtain airbag installed in at least a roof side rail, and inflating and expanding toward a vehicle lower side due to gas being supplied at a time of a side collision of the vehicle. The curtain airbag has an enlarged inflating portion that overlaps a center of a head of the passenger as seen in a side view, when the vehicle seat has been slid to a predetermined position at a vehicle rear side and the seatback has been set in a relaxed posture of being reclined to a recommended limit position.

First claim

What is claimed is:

1 . A vehicle passenger protecting device of a vehicle, the vehicle passenger protecting device comprising:
a side airbag that is installed in a side portion at a vehicle transverse direction outer side of a seatback of a vehicle seat, and that inflates and expands toward a vehicle transverse direction outer side of a passenger seated on a seat cushion of the vehicle seat due to gas being supplied thereto at a time of a side collision of the vehicle; and a curtain airbag that is installed in at least a roof side rail of the vehicle, and that inflates and expands toward a vehicle lower side due to gas being supplied thereto at the time of a side collision of the vehicle, wherein the curtain airbag has a curtain airbag main body having a lower edge portion that extends in a vehicle longitudinal direction along a beltline of a door of the vehicle, wherein the curtain airbag has an enlarged inflating portion that is formed integrally and continuously with a portion of the lower edge portion of the curtain airbag main body, the enlarged inflating portion extends downward in a vehicle vertical direction from the portion of the lower edge portion of the curtain airbag main body, the enlarged inflating portion extends further downward toward the vehicle lower side than the beltline of the door of the vehicle and the lower edge portion of the curtain airbag main body, the enlarged inflating portion overlaps with a center of a head of the passenger as seen in a side view, in a case in which the vehicle seat has been slid to a predetermined position at a vehicle rear side and the seatback has been set in a relaxed posture of being reclined to a recommended limit position, and wherein the enlarged inflating portion that has been inflated and expanded is disposed at a position that, as seen in a side view, does not overlap with an inflation/expansion region of the side airbag at a time at which the vehicle seat has been slid to the predetermined position at the vehicle rear side.

2 . The vehicle passenger protecting device of claim 1 , wherein the predetermined position is a rearmost position or a position up to 50 mm toward a vehicle front side from the rearmost position.

3 . The vehicle passenger protecting device of claim 1 , wherein, as seen in a side view, a lower end of the enlarged inflating portion that has been inflated and expanded is positioned further toward the vehicle lower side than a center of a head of a passenger corresponding to an AF05 human dummy.

4 . The vehicle passenger protecting device of claim 1 , wherein the enlarged inflating portion that has been inflated and expanded contacts a door trim that is further toward the vehicle lower side than the beltline of the door of the vehicle.

5 . The vehicle passenger protecting device of claim 1 , wherein the seatback is structured such that, at a time at which the vehicle is traveling, reclining to the relaxed posture is prohibited when the vehicle seat has not been slid to the predetermined position at the vehicle rear side.

6 . The vehicle passenger protecting device of claim 1 , wherein, at a time at which the vehicle is traveling, a warning is given when the seatback is reclined to the relaxed posture in a state in which the vehicle seat has not been slid to the predetermined position at the vehicle rear side.

7 . The vehicle passenger protecting device of claim 1 , wherein the seatback is configured to, at a time at which the vehicle is traveling, be stood up automatically when the vehicle seat is slid toward a vehicle front side in a state in which the seatback has been set in the relaxed posture.

8 . A vehicle passenger protecting device of a vehicle, the vehicle passenger protecting device comprising:
a side airbag that is installed in a side portion at a vehicle transverse direction outer side of a seatback of a vehicle seat, and that inflates and expands toward a vehicle transverse direction outer side of a passenger seated on a seat cushion of the vehicle seat due to gas being supplied thereto at a time of a side collision of the vehicle; and a curtain airbag that is installed in at least a roof side rail of the vehicle, and that inflates and expands toward a vehicle lower side due to gas being supplied thereto at the time of a side collision of the vehicle,
wherein the curtain airbag has an enlarged inflating portion that overlaps with a center of a head of the passenger as seen in a side view, in a case in which the vehicle seat has been slid to a predetermined position at a vehicle rear side and the seatback has been set in a relaxed posture of being reclined to a recommended limit position, and
wherein the seatback is structured such that, at a time at which the vehicle is traveling, reclining to the relaxed posture is prohibited when the vehicle seat has not been slid to the predetermined position at the vehicle rear side.

9 . A vehicle passenger protecting device of a vehicle, the vehicle passenger protecting device comprising:
a side airbag that is installed in a side portion at a vehicle transverse direction outer side of a seatback of a vehicle seat, and that inflates and expands toward a vehicle transverse direction outer side of a passenger seated on a seat cushion of the vehicle seat due to gas being supplied thereto at a time of a side collision of the vehicle; and a curtain airbag that is installed in at least a roof side rail of the vehicle, and that inflates and expands toward a vehicle lower side due to gas being supplied thereto at the time of a side collision of the vehicle, wherein the curtain airbag has an enlarged inflating portion that overlaps with a center of a head of the passenger as seen in a side view, in a case in which the vehicle seat has been slid to a predetermined position at a vehicle rear side and the seatback has been set in a relaxed posture of being reclined to a recommended limit position, and wherein, at a time at which the vehicle is traveling, a warning is given when the seatback is reclined to the relaxed posture in a state in which the vehicle seat has not been slid to the predetermined position at the vehicle rear side.

Assignees

• Toyota Motor Co Ltd

Inventors

• Ohno Mitsuyoshi
• Kaneko Akira
• Hashido Tatsuya

Classifications

• B60R21/232 Primary

  Curtain-type airbags deploying mainly in a vertical direction from their top edge · CPC title

• B60R21/213

  in vehicle roof frames or pillars · CPC title

• B60R21/207 Primary

  in vehicle seats · CPC title

• B60R2021/0048

  Head · CPC title

• B60R2021/0006

  Lateral collision · CPC title