Airbag device

• US 20030168842A1
• Filed: 02/13/2003
• Published: 09/11/2003
• Est. Priority Date: 03/07/2002
• Status: Active Grant

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Igawa, Tadahiro
• Granted Patent: US 6,981,719 B2
• Time in Patent Office: Days
• US Class Current: 280/743.2
• CPC Class Codes: B60R 2021/23382 Internal tether means
• CPC Class Codes: B60R 21/233 comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other B60R21/232 takes precedence
• CPC Class Codes: B60R 21/2338 Tethers

Abstract

A front panel and a rear panel of an airbag are connected to each other by a strap. Both ends of the strap are connected to the rear panel, and an intermediate portion thereof passes through openings of strap inserting members provided in an upper portion and a lower portion of the front panel. After the airbag is inflated, when an occupant comes to contact with the lower portion of the front panel, the lower portion of the front panel retreats and the restriction on the upper portion of the front panel by the strap is relieved by the sliding of the strap. Thus, the upper portion of the front panel is further expanded forwardly.

Claims

1. An airbag device, comprising:

an airbag having a front portion facing an occupant, a rear portion opposite to the front portion, and upper and lower portions at the front portion,

first and second strap inserting members situated inside the airbag and attached to the upper and lower portions to be spaced apart from each other, each of the first and second strap inserting members having a hole therein, and

a first strap situated inside the airbag and having two ends attached to the rear portion of the airbag, said first strap passing through the holes of the first and second strap inserting members so that the strap can slide in the holes of the first and second strap inserting members when a force is applied to a portion of the airbag after inflation.

2. An airbag device according to claim 1, further comprising an inflator attached to the rear portion of the airbag for inflating the airbag.

3. An airbag device according to claim 1, further comprising third and fourth strap inserting members with holes formed inside the airbag at right and left portions of the front portion, and a second strap situated inside the airbag and attached to the rear portion thereof, said second strap slidably passing through the holes of the third and fourth strap inserting members.

4. An airbag device according to claim 3, wherein said first and second strap inserting members are located vertically to arrange the first strap vertically, and said third and fourth strap inserting members are located laterally to arrange the second strap laterally crossing the first strap.

5. An airbag device according to claim 3, wherein said first and second strap inserting members are located diagonally to arrange the first strap diagonally, and the third and fourth inserting members are located diagonally to arrange the second strap diagonally crossing the first strap.

6. An airbag device according to claim 1, further comprising third and fourth strap inserting portions with holes parallel to the first and second strap inserting portions, and a second strap situated inside the airbag and attached to the rear portion thereof, said second strap slidably passing though the holes of the third and fourth strap inserting members.