# US 12,109,974 B2 · Pedestrian protection device

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- Number: US 12,109,974 B2
- Document ID: US12109974B2
- Status: Granted
- Kind: B2
- Application number: 18/536,866
- Filed: 2023-12-12
- Published: 2024-07-18
- Granted: 2024-10-08
- Earliest claimed: 2023-01-17
- Assignees: Toyoda Gosei Co., Ltd.
- Applicants: Toyoda Gosei Co., Ltd.
- Inventors: Kunihiro Aikawa; Hiroki Sakamoto; Atsushi Kashio; Makoto Ozeki; Ken Nitayama; Yusuke Ayukawa
- Web page: https://patentgrep.com/patent/US12109974B2

## CPC

- B60R 21/36: using airbags
- B60R 21/20: Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R 21/231: characterised by their shape, construction or spatial configuration
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A pedestrian protection device includes a left airbag and a right airbag that are disposed in a vicinity of a rear end of a hood panel in a vehicle, and are arranged in parallel on vehicle width direction sides. The left airbag and the right airbag each include a cowl cover portion that is disposed following the vehicle width direction and covers an upper face side of a cowl. The cowl cover portions have end portion regions disposed coinciding with each other on up-down direction sides on end sides that are in proximity to each other. At least one of the end portion regions is configured in such a way that an internal pressure when inflation is completed is raised higher than that of a general region.

## Claims

### Claim 1

A pedestrian protection device, comprising
a left airbag and a right airbag that are disposed in a vicinity of a rear end of a hood panel in a vehicle, and are arranged in parallel on vehicle width direction sides when inflation of each is completed, wherein
the left airbag includes a left cowl cover portion that is disposed approximately following the vehicle width direction and covers an upper face side of a cowl when inflation is completed, and
the right airbag includes a right cowl cover portion that is disposed approximately following the vehicle width direction and covers the upper face side of the cowl when inflation is completed, and wherein
the left cowl cover portion and the right cowl cover portion are configured to have end portion regions disposed coinciding with each other on up-down direction sides on end sides that are in proximity to each other when inflation is completed, and
at least one of the end portion regions is configured in such a way that an internal pressure when inflation is completed is raised higher than that of a general region of the left airbag or the right airbag.

### Claim 2 (depends on 1)

The pedestrian protection device according to claim 1, wherein
an upper side end portion region positioned on an upper side when inflation is completed is configured in such a way that an internal pressure when inflation is completed is raised higher than that of another general region.

### Claim 3 (depends on 2)

The pedestrian protection device according to claim 2, wherein
the left airbag and the right airbag are configured in such a way as to expand on a left and a right respectively of a wiper pivot disposed centrally in the vehicle width direction in a left and right pair of wipers, and
a lower side end portion region positioned on a lower side when inflation is completed is configured in such a way that an end edge is caused to neighbor the wiper pivot.

### Claim 4 (depends on 3)

The pedestrian protection device according to claim 3, wherein
the upper side end portion region is of a configuration disposed inclined in such a way that an end edge is lifted upward.

### Claim 5 (depends on 2)

The pedestrian protection device according to claim 2, wherein
a wall that separates the upper side end portion region and the general region is disposed in the left cowl cover portion or the right cowl cover portion.