Airbag device for saddled vehicle

Patent metadata

Field	Value
Publication number	US-11873049-B2
Application number	US-201917763415-A
Country	US
Kind code	B2
Filing date	Sep 30, 2019
Priority date	Sep 30, 2019
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

To enable a retainer to be easily manufactured in accordance with a position where an inflator is disposed. In an airbag device for a saddled vehicle including: a retainer provided behind a head pipe; an inflator; and an airbag accommodated in the retainer, the airbag being configured to be expanded by gas released by the inflator and deployed in front of a passenger, the retainer has a box shape formed by assembling a plurality of components, the inflator is disposed to be offset outward in a vehicle width direction relative to the head pipe, the first component covers the inflator from a vehicle front side, a second component is provided behind the head pipe, and a third component is provided on a side of the passenger and is fitted to the second component and the first component from a back side.

First claim

The invention claimed is:

1. An airbag device for a saddled vehicle comprising:
a retainer provided behind a head pipe;
an inflator; and
an airbag accommodated in the retainer, the airbag being configured to be expanded by gas released by the inflator and deployed in front of a passenger,
wherein the retainer has a box shape formed by assembling a first component, a second component, and a third component,
the airbag device includes an exterior member that covers, by a lid portion, an opening in an upper surface of the retainer from an upper side and that covers, from an outer side of the retainer, substantially an entirety of the retainer from an upper end portion to a lower end portion of the retainer,
the inflator is disposed to be offset outward in a vehicle width direction relative to the head pipe,
the first component covers the inflator from a vehicle front side,
the second component is provided behind the head pipe,
the third component is provided on a side of the passenger and is fitted to the second component and the first component from a vehicle back side,
the retainer has an L shape including: an upward/downward extending portion extending in an up-down direction and having an upper end portion from which the airbag is deployed; and a sideward extending portion extending outward in the vehicle width direction from the upward/downward extending portion,
the second component constitutes a front portion of the upward/downward extending portion and overlaps the head pipe from the vehicle back side,
the first component is a box-shaped component with a back portion opened backward, is joined to a side portion of the second component, and constitutes a front portion of the sideward extending portion,
the first component extends forward up to a position in front of the head pipe and on an outer side relative to the head pipe,
the inflator is disposed at a position in front of the head pipe and on the outer side relative to the head pipe inside the first component, and
the exterior member is fastened to the retainer with a cover fastening tool and the lid portion includes a ripping portion that is configured to be caused to rupture by the airbag deployed.

2. The airbag device for the saddled vehicle according to claim 1 , wherein secured locations of the first component with respect to the second component and the third component are located around the inflator.

3. The airbag device for the saddled vehicle according to claim 1 , wherein the second component is provided with a fastening portion that secures the retainer to a vehicle body.

4. The airbag device for the saddled vehicle according to claim 1 , wherein the third component is provided with a guide portion that guides a flow of the gas inward in the vehicle width direction with a stepped shape inside the retainer.

5. The airbag device for the saddled device according to claim 1 ,
wherein the first component includes an inflator support portion supporting the inflator,
the first component and the second component are joined to form a front-side case, and
the third component is joined to the front-side case.

6. The airbag device for the saddled vehicle according to claim 5 ,
wherein the front-side case in an L shape and the third component in an L shape are joined to each other.

7. The airbag device for the saddled vehicle according to claim 5 ,
wherein the first component and the second component are joined through welding, and
the third component is detachably fastened to the front-side case.

8. The airbag device for the saddled vehicle according to claim 1 ,
wherein the inflator is disposed in an orientation such that an axial line of the inflator is directed in a vehicle front-back direction,
the first component supports the inflator with the inflator covered from a front side and is joined to the second component, and
the third component is fitted to the first component and the second component from the vehicle back side.

Assignees

• Honda Motor Co Ltd

Inventors

• Kurohori Seiichi
• Sato Takashi
• Aikyo Yutaka
• Fuma Makoto
• Habu Masaru
• Murakami Sho

Classifications

• B62J27/20 Primary

  Airbags specially adapted for motorcycles or the like · CPC title

• B60R21/20

  Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components · CPC title

• B62K2202/00

  Motorised scooters · CPC title