# US 10,479,314 B2 · Curtain airbag and curtain airbag device

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- Number: US 10,479,314 B2
- Document ID: US10479314B2
- Status: Granted
- Kind: B2
- Application number: 15/912,912
- Filed: 2018-03-06
- Published: 2018-09-13
- Granted: 2019-11-19
- Earliest claimed: 2017-03-08
- Assignees: Joyson Safety Systems Japan K.K.
- Applicants: Joyson Safety Systems Japan K.K.
- Inventors: Sakae Sugimori
- Web page: https://patentgrep.com/patent/US10479314B2

## CPC

- B60R 21/232: Curtain-type airbags deploying mainly in a vertical direction from their top edge
- B60R 21/23138: {specially adapted for side protection (B60R21/23184, B60R21/232 take precedence)}
- B60R 21/2338: Tethers
- B60R 2021/23386: {External tether means}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A curtain airbag and device capable of stabilizing a position of a main panel in a vehicle length direction (longitudinal direction) and in a vehicle width direction (lateral direction) at the time of inflation and development. A curtain airbag is provided with a main panel forming an inflatable portion, a guide panel arranged on a rear surface arranged on a side window side of the main panel, and a connecting member which connects the main panel to a vehicle body, the main panel including a folded portion obtained by folding a lower end in a flat development view toward the rear surface side, the guide panel including an upper end connected to the main panel and a lower end connected to the folded portion, and the connecting member including a first end connected to the vehicle body and a second end connected to the folded portion.

## Claims

### Claim 1

A curtain airbag folded to be stored in an upper portion of a vehicle body in normal times and inflated and developed along a side window in an emergency, the curtain airbag comprising:
a main panel forming an inflatable portion;
a guide panel arranged on a rear surface arranged on a side of the side window of the main panel; and
a connecting member which connects the main panel to the vehicle body,
wherein the main panel includes a folded portion obtained by folding a lower end in a flat development view toward the rear surface side,
the guide panel includes an upper end connected to the main panel and a lower end connected to the folded portion, and
the connecting member includes a first end connected to the vehicle body and a second end connected to the folded portion.

### Claim 2 (depends on 1)

The curtain airbag according to claim 1, wherein the first end is connected to an A pillar of the vehicle body, and the second end is connected to a front end of the folded portion.

### Claim 3 (depends on 1)

The curtain airbag according to claim 1, wherein the first end is located above the second end in a state where the main panel is inflated and developed.

### Claim 4 (depends on 1)

A curtain airbag device comprising a curtain airbag folded to be stored in an upper portion of a vehicle body in normal times and inflated and developed along a side window in an emergency, and an inflator which supplies gas to the curtain airbag,
wherein the curtain airbag is the curtain airbag according to claim 1.