# US 2018/0022309 A1 · Vehicular occupant restraining device

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- Number: US 2018/0022309 A1
- Document ID: US20180022309A1
- Status: Published application
- Kind: A1
- Application number: 15/648,493
- Filed: 2017-07-13
- Published: 2018-01-25
- Earliest claimed: 2016-07-22
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Masato KUNISADA; Hiroyuki NAGURA; Takuma KAWAI; Takayuki IWAKAWA
- Web page: https://patentgrep.com/patent/US20180022309A1

## CPC

- B60R 21/23138: {specially adapted for side protection (B60R21/23184, B60R21/232 take precedence)}
- B60R 21/207: in vehicle seats
- B60R 21/26: characterised by the inflation fluid source or means to control inflation fluid flow {(arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10)}
- B60R 2021/0032: {Position of passenger}
- B60R 2021/0039: {Body parts of the occupant or pedestrian affected by the accident}
- B60R 2021/0058: {Shoulders}
- B60R 2021/23107: {the bag being integrated in a multi-bag system}
- B60R 2021/23146: {seat mounted}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A vehicular occupant restraining device, that includes: an inside air bag arranged on an inner side, in a vehicle width direction, of a side frame in a side section, the inside air bag receiving a gas supply from a second inflator, the inside air bag deploying by inflation in the side section earlier and at a higher pressure than a side air bag, and the inside air bag pressing a seated occupant to an inner side in the vehicle width direction. The inside air bag is configured so as to deploy by inflation in a region more to a vehicle upper side than a second-from-bottom rib of six ribs provided in a torso of an AM50 type international standard side collision dummy, in a state in which the dummy is seated in the vehicular seat.

## Claims

### Claim 1

A vehicular occupant restraining device, comprising:
a side air bag arranged on an outer side, in a vehicle width direction, of a side frame in a side section on an outer side, in the vehicle width direction, of a seat back of a vehicular seat, the side air bag receiving a gas supply from a first inflator to deploy by inflation, and the side air bag being interposed between an occupant seated in the vehicular seat and a vehicle interior side section; and
an inside air bag arranged on an inner side, in the vehicle width direction, of the side frame in the side section, the inside air bag receiving a gas supply from a second inflator, the inside air bag deploying by inflation in the side section earlier and at a higher pressure than the side air bag, and the inside air bag pressing a seated occupant to an inner side in the vehicle width direction,
wherein the inside air bag is configured so as to deploy by inflation in a region more to a vehicle upper side than a second-from-bottom rib of six ribs provided in a torso of an AM50 type international standard side collision dummy, in a state in which the dummy is seated in the vehicular seat.

### Claim 2 (depends on 1)

The vehicular occupant restraining device according to claim 1, wherein the inside air bag is configured so as to deploy by inflation in a region more to a vehicle lower side than a head of an AF05 type international standard side collision dummy in a state in which the dummy is seated in the vehicular seat.

### Claim 3 (depends on 1)

The vehicular occupant restraining device according to claim 1, wherein an internal pressure of the inside air bag is 200 kPa or less.

### Claim 4 (depends on 1)

The vehicular occupant restraining device according to claim 1, wherein:
the side frame has a reaction force-exerting section to which the inside air bag is attached and which exerts a reaction force on the inside air bag from an outer side in the vehicle width direction during deployment by inflation, and
the reaction force-exerting section is inclined such that the more it heads toward a vehicle front side, the more it heads toward an outer side in the vehicle width direction, in a case in which the seat back is viewed in plane cross section.

### Claim 5 (depends on 1)

The vehicular occupant restraining device according to claim 1, wherein:
a first-from-top rib of the six ribs is provided at a shoulder of the AM50 type international standard side collision dummy or an AF05 type international standard side collision dummy,
second-, third-, and fourth-from-top ribs of the six ribs are respectively provided at a chest of the AM50 type international standard side collision dummy or the AF05 type international standard side collision dummy, and
fifth- and sixth-from-top ribs of the six ribs are respectively provided at a belly of the AM50 type international standard side collision dummy or the AF05 type international standard side collision dummy.

### Claim 6 (depends on 4)

The vehicular occupant restraining device according to claim 4, wherein:
the side frame includes: a side frame main body; and a reaction force plate attached to the side frame main body, and
the reaction force-exerting section is provided at the reaction force plate.