公开(公告)号：US11865988B2

公开(公告)日：2024-01-09

申请号：US18047509

申请日：2022-10-18

Applicant: Autoliv Development AB

Inventor： Yuto Kobayashi ,  Tsutomu Sakurai ,  Tomofumi Tochigi

IPC: B60R21/207 ,  B60R21/2342

CPC classification number: B60R21/207 ,  B60R21/2342

Abstract: PROBLEM:
To provide a side airbag device that can be stored compactly.
RESOLUTION MEANS
The present invention is an airbag device to be stowed in a vehicle seat, comprising:
an airbag cushion that restrains an occupant by expanding and deploying;
an inflator arranged on the inner side of the seat frame which supplies expansion gas to the airbag cushion; and
a cover member made of a ductile material that melts and shrinks under heat and pressure to retain the airbag cushion. The airbag cushion includes a rear chamber section where the inflator is stowed, and a front chamber section that extends forward from the rear chamber section that is arranged outside of the seat frame when stowed. The cover member is then configured to heat and pressurize the region corresponding to the front chamber section of the airbag cushion, thereby pressurizing and retaining the relevant section of the airbag cushion.

公开(公告)号：US12202431B2

公开(公告)日：2025-01-21

申请号：US18262530

申请日：2022-01-19

Applicant: Autoliv Development AB

Inventor： Yuto Kobayashi ,  Tsutomu Sakurai

IPC: B60R21/235 ,  B60R21/217 ,  B60R21/231 ,  B60R21/237

Abstract: To prevent outward gas leakage between the airbag cushion and inflator during expansion and deployment with a simple configuration. The present invention provides an airbag device including: an airbag cushion having at least two panels; an inflator that discharges gas inside the airbag cushion; a first piece extending from an edge of a first panel of the two panels that is folded in the middle into the airbag cushion; a second piece provided on a portion near the edge of a second panel facing the first piece inside the airbag cushion and sewn to the folded part of the folded first piece; and an insertion passage for the inflator formed from sewing the folded part and the second piece, and extending from inside the airbag cushion to outside.

公开(公告)号：US12005851B2

公开(公告)日：2024-06-11

申请号：US17999804

申请日：2021-05-17

Applicant: Autoliv Development AB

Inventor： Yuto Kobayashi ,  Tsutomu Sakurai

IPC: B60R21/217 ,  B60R21/231 ,  B60R21/237 ,  B60R21/21 ,  B60R21/235

CPC classification number: B60R21/217 ,  B60R21/231 ,  B60R21/237 ,  B60R21/21 ,  B60R21/23138 ,  B60R21/235 ,  B60R2021/23538 ,  B60R2021/23576

Abstract: A vehicle airbag device and a method for manufacturing the same, in which stud bolts for securing the device to the vehicle body can be inserted avoiding the sewn sections, and in which unbalanced stresses are not generated in the panel parts during expansion and deployment.
The device having a pair of panel parts, a pair of expansion parts integrally provided on the pair of panel parts, the expansion part of the first panel part overlapping the second panel part, and the expansion part of the second panel part overlapping the first panel part, forming an overlapping section by joining each expansion part to each panel part at a sewn section, and joining the overlapping section with a pair of panel part outer edges, the outer sewn section forming a hollow bag body, and providing inflator insertion holes and bolt insertion holes provided through the overlapping section.

公开(公告)号：US11358555B2

公开(公告)日：2022-06-14

申请号：US17282161

申请日：2019-09-16

Applicant: Autoliv Development AB

Inventor： Tsutomu Sakurai ,  Yuto Kobayashi

IPC: B60R21/207 ,  B60N2/427 ,  B60R21/231

Abstract: An airbag which is a constituent of a side airbag device installed in the vehicle seat according to the present invention is provided with a main chamber which deploys toward the front of a side support portion of the seat, and a sub-chamber which accommodates an inflator and which deploys at a position inward of the main chamber in the width direction of the vehicle. The main chamber is divided, by means of a baffle panel, into a main front chamber at the front, and a main rear chamber at the rear. The sub-chamber is linked to the main rear chamber at a side in the width direction of the vehicle. When the airbag is deployed, the baffle panel extends along a front edge of the sub-chamber, as viewed from the width direction of the vehicle.

公开(公告)号：US11833990B2

公开(公告)日：2023-12-05

申请号：US17309762

申请日：2019-10-18

Applicant: Autoliv Development AB ,  Yuto Kobayashi ,  Hiroyuki Shima ,  Tsutomu Sakurai

Inventor： Yuto Kobayashi ,  Hiroyuki Shima ,  Tsutomu Sakurai

IPC: B60R21/231 ,  B60R21/207 ,  B60R21/215 ,  B60R21/217 ,  B60R21/233 ,  B60R21/237

CPC classification number: B60R21/23138 ,  B60R21/207 ,  B60R21/215 ,  B60R21/2171 ,  B60R21/233 ,  B60R21/237 ,  B60R2021/23146 ,  B60R2021/23324

Abstract: This invention relates to a side airbag device stored inside a vehicle seat and fixed to a side frame. The device includes an airbag that expands and deploys to restrict an occupant; an inflator that supplies expansion gas to the airbag; and a bracket connected to the side frame that holds the airbag and the inflator. The airbag includes a prepush chamber having an inflator stored therein and mainly deploys inside of the side frame; and a main chamber connected to the prepush chamber and mainly deploys forward of the side frame. The bracket includes a first surface oriented in the forward direction of the vehicle; and a second surface oriented to the inside of the seat in the width direction of the vehicle. When the airbag is stored by being folded and/or rolled, at least the main chamber is disposed on the first surface of the bracket.

公开(公告)号：US11766983B2

公开(公告)日：2023-09-26

申请号：US17756105

申请日：2020-10-01

Applicant: Autoliv Development AB

Inventor： Yuto Kobayashi ,  Tsutomu Sakurai

IPC: B60R21/2165 ,  B60R21/207 ,  B60R21/231 ,  B60R21/237

CPC classification number: B60R21/2165 ,  B60R21/207 ,  B60R21/237 ,  B60R21/23138 ,  B60R2021/23146

Abstract: An airbag cushion including a cushion rear portion on the inner side of a frame side plate part, a cushion folded portion folded to the outer side of the frame side plate part, and a cushion front portion on the outer side of the frame side plate part. A cover enveloping portion of a cover member has a first end portion engaged with the cushion rear portion and a second end portion that covers a front surface of the cushion folded portion to the cushion front portion and is engaged with a back surface of the cushion folded portion. A cover extension portion connected to the cover enveloping portion by a joint portion and is engaged with the frame side plate part. The cover enveloping portion or the cover extension portion is provided with a weak portion (breakable).

公开(公告)号：US11235728B2

公开(公告)日：2022-02-01

申请号：US16713129

申请日：2019-12-13

Applicant: Autoliv Development AB

Inventor： Yuto Kobayashi ,  Tsutomu Sakurai

IPC: B60R21/231 ,  B60R21/207

Abstract: A side airbag apparatus includes a support part having a reaction force surface for receiving the deployment force of an airbag upon expanding and deploying the airbag. An inflator is fixed to the support part. A variable mechanism is configured to attach the support part to a seat frame such that the angle of the reaction force surface is variable with respect to the seat frame.

公开(公告)号：US11752966B2

公开(公告)日：2023-09-12

申请号：US17310462

申请日：2019-12-23

Applicant: Autoliv Development AB

Inventor： Yuto Kobayashi ,  Tsutomu Sakurai

IPC: B60R21/231 ,  B60R21/207 ,  B60R21/233

CPC classification number: B60R21/23138 ,  B60R21/207 ,  B60R21/233 ,  B60R2021/23146

Abstract: The present invention is a side airbag device housed in the side support part of a vehicle seat and includes an airbag for restraining an occupant and an inflator. The airbag includes a first bag housing the inflator which is capable of inflating and deploying, and a second bag capable of inflating and deploying on the side of the first bag. The second bag is configured to be deployed by inflation gas flowing in from the first bag. At the upper edge of the second bag, an inclined part is formed that is inclined to be lower at the front thereof than at the rear thereof when viewed from the vehicle width direction. The front portion of the inclined part is configured to be located lower than the center line extending in the longitudinal direction of the upper arm of the occupant seated in a vehicle seat.

公开(公告)号：US20230182673A1

公开(公告)日：2023-06-15

申请号：US18047509

申请日：2022-10-18

Applicant: Autoliv Development AB

Inventor： Yuto Kobayashi ,  Tsutomu Sakurai ,  Tomofumi Tochigi

IPC: B60R21/207 ,  B60R21/2342

CPC classification number: B60R21/207 ,  B60R21/2342

Abstract: PROBLEM:
To provide a side airbag device that can be stored compactly.
RESOLUTION MEANS
The present invention is an airbag device to be stowed in a vehicle seat, comprising:
an airbag cushion that restrains an occupant by expanding and deploying;

an inflator arranged on the inner side of the seat frame which supplies expansion gas to the airbag cushion; and

a cover member made of a ductile material that melts and shrinks under heat and pressure to retain the airbag cushion. The airbag cushion includes a rear chamber section where the inflator is stowed, and a front chamber section that extends forward from the rear chamber section that is arranged outside of the seat frame when stowed. The cover member is then configured to heat and pressurize the region corresponding to the front chamber section of the airbag cushion, thereby pressurizing and retaining the relevant section of the airbag cushion.

公开(公告)号：US11364871B2

公开(公告)日：2022-06-21

申请号：US17120575

申请日：2020-12-14

Applicant: Autoliv Development AB

Inventor： Yuto Kobayashi ,  Tsutomu Sakurai

IPC: B60R21/231 ,  B60R21/207 ,  B60R21/233 ,  B60R21/2338 ,  B60R21/239 ,  B60R21/26

Abstract: A far side side airbag device provided on the side part in the center in the width direction of a backrest portion of either of separated seats arranged in the width direction of a vehicle, which restrains the movement of an occupant. A cushion and an inflator expands and deploys the cushion. The cushion has a first portion and a second portion that expand and deploy onto the front surface of each of the adjacent separated seats when a signal is received to restrain the occupant and capture the side part of the occupant, and a center portion provided in between the first portion and the second portion. A protruding part is formed on the center portion in order to capture the head of the occupant.