# US 8,540,275 B2 · Aircraft airbag, airbag device, and aircraft

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- Number: US 8,540,275 B2
- Document ID: US8540275B2
- Status: Granted
- Kind: B2
- Application number: 13/516,395
- Filed: 2010-11-08
- Published: 2012-10-11
- Granted: 2013-09-24
- Earliest claimed: 2009-12-16
- Assignees: Takata Corporation
- Applicants: Akira Kokeguchi
- Inventors: Akira Kokeguchi
- Web page: https://patentgrep.com/patent/US8540275B2

## CPC

- B64D 11/06205: {Arrangements of airbags}
- B64D 11/06: {Arrangements of seats, or adaptations or details specially adapted for aircraft seats (crew seat constructions for emergency purposes B64D25/04)}
- B60R 2021/23382: {Internal tether means}
- B60R 2021/2395: {comprising means to control the venting}
- B64D 2201/00: Airbags mounted in aircraft for any use
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

Provided are an aircraft airbag that inflates across a plurality of seats, an airbag device including this airbag, and an aircraft equipped with this airbag device. The airbag has a bag main body extending across three seats and in the left-right direction of the aircraft body, and partition panels that partition the inside of the bag main body into small chambers and corresponding to the seats. Gas from the inflator flows into the small chamber in the middle, and flows into the small chambers through the communication portions above and below the partition panels. When occupants are caught and thereby the pressures in the small chambers reach a predetermined value or more, vent holes open.

## Claims

### Claim 1

An aircraft airbag installed in front of seats of an aircraft, comprising:
a bag main body having a length such that it is continuously disposed in front of a plurality of seats;
one or more partition panels provided so as to partition the bag main body into a plurality of small chambers arranged in the longitudinal direction of the bag and to allow adjacent small chambers to communicate with each other; and
one or more vent holes provided in the bag main body.

### Claim 2 (depends on 1)

The aircraft airbag according to claim 1, wherein the same number of small chambers as the number of the seats are provided, and the one or more partition panels are arranged such that one small chamber exists in front of one seat.

### Claim 3 (depends on 1)

The aircraft airbag according to claim 1, wherein three or more small chambers are formed, and an inflator installation portion is provided in the bag main body facing the small chamber in the middle in the longitudinal direction of the bag main body.

### Claim 4 (depends on 1)

The aircraft airbag according to claim 1, wherein the one or more vent holes are one or more constant-pressure vent holes that open when the pressure in the bag main body reaches a predetermined value or more.

### Claim 5 (depends on 1)

The aircraft airbag according to claim 1, wherein the one or more partition panels connect the front part and rear part of the bag main body.

### Claim 6 (depends on 1)

The aircraft airbag according to claim 1, wherein fasteners for fastening the ends in the longitudinal direction of the bag main body to an aircraft body member are provided.

### Claim 7 (depends on 1)

The aircraft airbag according to claim 1, wherein each small chamber is provided with the vent hole.

### Claim 8 (depends on 1)

The aircraft airbag according to claim 1, wherein three or more small chambers are provided,
the small chamber in the middle in the longitudinal direction of the bag main body is not provided with the vent hole, and
the small chambers at both ends in the longitudinal direction of the bag main body are each provided with the vent hole.

### Claim 9 (depends on 5)

The aircraft airbag according to claim 5, wherein communication portions that allow adjacent small chambers to communicate with each other are provided between the upper edge and lower edge of each partition panel and the bag main body.

### Claim 10 (depends on 1)

An aircraft airbag device comprising: the aircraft airbag according to claim 1; and an inflator for inflating the aircraft airbag.

### Claim 11 (depends on 10)

An aircraft in which the airbag device according to claim 10 is installed in a wall in front of seats.