Airbag and airbag device

• US 7,331,603 B2
• Filed: 10/26/2006
• Issued: 02/19/2008
• Est. Priority Date: 03/17/2003
• Status: Expired due to Fees

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Hasebe, Masahiro, Narimoto, Yukitoshi, Kitagawa, Youko
• Primary Examiner(s): Dickson; Paul N.
• Assistant Examiner(s): To; Toan C.
• Application Number:
  US11/586,503
• Publication Number:
  US 20070040367A1
• Time in Patent Office: 481 Days
• Field of Search: 280/730.1, 280/731, 280/732, 280/735, 280/736, 280/742
• US Class Current: 280/731
• CPC Class Codes: B60R 21/01508 detecting forces or pressure in bags or modules
• CPC Class Codes: B60R 21/237 characterised by the way they are folded
• CPC Class Codes: B60R 21/239 characterised by their venting means

Abstract

An airbag includes a bag portion, a pressure sensor for detecting an inner pressure of the bag portion when the airbag is inflated, and a harness electrically connected to the pressure sensor. The harness has a portion disposed on an inner surface of the bag portion along a folding line for folding the bag portion.

Claims

1. An airbag for protecting an occupant, comprising;

a bag portion having a front portion for facing the occupant, a top portion, a bottom portion, and two side portions located between the top and bottom portions and arranged generally perpendicular to the front portion,

a pressure sensor for detecting an inner pressure of the bag portion when the airbag is inflated, said pressure sensor being mounted on an inner surface of one of the side portions where the pressure sensor is not affected by the occupant and a vehicle body upon inflation of the bag portion, and

a harness electrically connected to the pressure sensor, said harness having a portion disposed on the inner surface of the bag portion and extending along a folding line when the bag portion is folded.

2. An airbag according to claim 1, wherein a plurality of pressure sensors is disposed in one bag portion.

3. An airbag device comprising the airbag according to claim 1, and a gas generator attached to the airbag for inflating the same.

4. An airbag according to claim 2, wherein said plurality of pressure sensors is disposed on the inner surface of one of the side portions and is arranged to be vertically spaced apart from each other.

5. An airbag according to claim 4, wherein the pressure sensors are disposed at an intermediate location between the front portion and a gas inlet of the bag portion, and the harness is attached to the inner surface by a fastener.

6. An airbag device comprising the airbag according to claim 5, a container, and a gas generator attached to the airbag and retained in the container, wherein said airbag further includes the gas inlet, through which the harness inside the airbag extends to the container.