# US 10,864,881 B2 · Side airbag device

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- Number: US 10,864,881 B2
- Document ID: US10864881B2
- Status: Granted
- Kind: B2
- Application number: 16/137,541
- Filed: 2018-09-21
- Published: 2019-03-28
- Granted: 2020-12-15
- Earliest claimed: 2017-09-22
- Assignees: Hyundai Mobis Co., Ltd.
- Applicants: Hyundai Mobis Co., Ltd.
- Inventors: Hae Kwon Park; Jiwoon Song
- Web page: https://patentgrep.com/patent/US10864881B2

## CPC

- B60R 21/23138: {specially adapted for side protection (B60R21/23184, B60R21/232 take precedence)}
- B60R 21/207: in vehicle seats
- B60R 21/2338: Tethers
- B60R 2021/0006: {Lateral collision}
- B60R 2021/0048: {Head}
- B60R 2021/23146: {seat mounted}
- B60R 2021/23386: {External tether means}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A side airbag device may include: an inflator mounted to a seat frame; a cushion covering the inflator and configured to be deployed by gas discharged from the inflator to protect a side portion of an passenger; and a tether mounted to the inflator and configured to enclose the cushion and reduce collision energy applied to the passenger.

## Claims

### Claim 1

A side airbag device comprising:
an inflator mounted to a seat frame;
a cushion covering the inflator and configured to be deployed by gas discharged from the inflator to protect a side portion of occupant passenger; and
a tether mounted to the inflator and configured to enclose the cushion and reduce collision energy applied to the passenger,
wherein:
the cushion comprises:
a cushion deployment part mounted to the inflator and configured to be deployed by gas discharged from the inflator;
a cushion passing part formed in the cushion deployment part so that the tether passes through the cushion passing part; and
a cushion penetration part formed in an upper end of the cushion deployment part so that the tether penetrates the cushion penetration part;
the tether comprises:
a first tether fixed to the inflator, disposed on an inner side surface of the cushion deployment part, and reaching the cushion passing part;
a second tether extending from the first tether, reaching the cushion penetration part via the cushion passing part, and disposed on an outer side surface of the cushion deployment part; and
a third tether extending from the second tether, disposed on the inner side surface of the cushion deployment part, and fixed to the inflator and configured to support the passenger;
the third tether has a width that is different from a width of the first tether and a width of the second tether; and
a medial portion of the tether has a width greater than a width of each end of the tether.

### Claim 2 (depends on 1)

The side airbag device according to claim 1, wherein the inflator comprises:
a discharger configured to provide gas when a vehicle collision occurs; and
a connector configured to mount the discharger to the seat frame.

### Claim 3 (depends on 1)

The side airbag device according to claim 1, wherein a length of the tether is less than a length of an installation path of the tether.

### Claim 4 (depends on 1)

The side airbag device according to claim 1, wherein the width of the third tether is greater than the width of the first tether.

### Claim 5 (depends on 1)

The side airbag device according to claim 1, wherein the width of the third tether is greater than the width of the second tether.