PASSENGER PROTECTING DEVICE FOR VEHICLE

• US 20170028960A1
• Filed: 07/12/2016
• Published: 02/02/2017
• Est. Priority Date: 07/30/2015
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: KOBAYASHI, Ippei, OHNO, Mitsuyoshi, NAKASHIMA, Atsushi
• Granted Patent: US 10,093,269 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60N 2/42 the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats for protecting children B60N2/26; arm-rests B60N2/75; head-rests B60N2/888
• CPC Class Codes: B60N 2/42763 with anti-submarining systems
• CPC Class Codes: B60N 2/914 Hydro-pneumatic adjustments of the shape
• CPC Class Codes: B60R 2021/0055 Pelvis
• CPC Class Codes: B60R 2021/23146 seat mounted
• CPC Class Codes: B60R 2021/23324 Inner walls crating separate compartments, e.g. communicating with vents
• CPC Class Codes: B60R 2021/23382 Internal tether means
• CPC Class Codes: B60R 21/16 Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags protective garments with automatically inflatable shock-absorbing means A41D13/018; connection of valves to inflatable elastic bodies B60C29/00
• CPC Class Codes: B60R 21/207 in vehicle seats
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration
• CPC Class Codes: B60R 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence
• CPC Class Codes: B60R 21/233 comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other B60R21/232 takes precedence
• CPC Class Codes: B60R 21/2338 Tethers

Abstract

A passenger protecting device 10 for a vehicle has: a side airbag portion 20 that is accommodated at an interior of a side support portion 14B, and that, by receiving a supply of gas and inflating at a time of an oblique side collision of a vehicle, causes the side support portion 14B to bulge-out toward the seat upper side; and a seat cushion airbag portion 22 that is accommodated at an interior of the seat portion 14A, and that, by receiving a supply of gas and inflating at a time of an oblique side collision of the vehicle, causes the seat portion 14A to bulge-out toward the seat upper side and raises the femoral region D of the passenger P, and whose inflation is completed later than the side airbag portion 20.

Claims

1. A passenger protecting device for a vehicle, comprising:

a side airbag portion that is accommodated at an interior of a side support portion that protrudes toward a seat upper side from a seat transverse direction outer side with respect to a seat portion of a seat cushion at a vehicle seat, and that, by receiving a supply of gas and inflating at a time of a side collision including an oblique side collision of a vehicle, causes the side support portion to bulge toward the seat upper side, and protects a femoral region and a lumbar region of a passenger from the seat transverse direction outer side; and

a seat cushion airbag portion that is accommodated at an interior of the seat portion, and that, by receiving a supply of gas and inflating at a time of a front collision including an oblique side collision of the vehicle, causes the seat portion to bulge toward the seat upper side and raises the femoral region of the passenger, inflation of the seat cushion airbag portion being completed later than that of the side airbag portion.

2. The passenger protecting device for a vehicle of claim 1, wherein:

the side airbag portion and the seat cushion airbag portion are in communication with each other,

an inflator, that supplies gas to the side airbag portion and to the seat cushion airbag portion, is provided at an interior of the seat cushion, and

inflation of the side airbag portion by gas generated from the inflator is prioritized.

3. The passenger protecting device for a vehicle of claim 2, wherein:

a recessed portion that is hollowed out toward a seat front side is formed between the side airbag portion and the seat cushion airbag portion, and

the side airbag portion and the seat cushion airbag portion are communicated with each other at a front end portion at a seat front side at the seat cushion.

4. The passenger protecting device for a vehicle of claim 2, further comprising a flow regulating cloth, that guides gas generated from the inflator to the side airbag portion.

5. The passenger protecting device for a vehicle of claim 2, wherein:

the side airbag portion and the seat cushion airbag portion are configured by separate base cloths, and are communicated with each other via communication holes, and

a gas flow path is formed such that gas generated from the inflator flows from the side airbag portion via the communication holes to the seat cushion airbag portion.

6. The passenger protecting device for a vehicle of claim 5, wherein:

an internal space of the seat cushion airbag portion is partitioned by a tether into a front chamber at a seat front side and a rear chamber at a seat rear side,

the communication holes comprise a first communication hole that communicates the front chamber and the side airbag portion, and a second communication hole that communicates the rear chamber and the side airbag portion, and

the inflator is disposed at the front chamber.

7. The passenger protecting device for a vehicle of claim 1, wherein:

the seat cushion airbag portion is accommodated at the interior of the seat portion in a folded-up state, and

the side airbag portion is accommodated at the interior of the side support portion in a state of being deployed without being folded.

8. The passenger protecting device for a vehicle of claim 1, wherein:

the seat cushion airbag portion is accommodated at the interior of the seat portion in a folded-up state, and

the side airbag portion is accommodated at the interior of the side support portion in a state of being folded a number of times that is less than a number of times that the seat cushion airbag portion is folded.

9. The passenger protecting device for a vehicle of claim 1, wherein:

the seat cushion airbag portion has an inflation limiting member that breaks at a predetermined inflation pressure, and

a base cloth that configures the seat cushion airbag portion is connected in a seat vertical direction by the inflation limiting means.

10. The passenger protecting device for a vehicle of claim 1, wherein:

the side airbag portion is, in an inflated state, provided at a position that overlaps a center of gravity of the femoral region and a hip point of the passenger as seen from a seat transverse direction, and

an upper end of the side airbag portion in the inflated state is inclined along the seat portion toward a seat lower side from a seat front side toward a seat rear side.