Occupant protection device

• US 20030015861A1
• Filed: 07/05/2002
• Published: 01/23/2003
• Est. Priority Date: 07/23/2001
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Japan K.K.
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Abe, Kazuhiro
• Granted Patent: US 6,712,384 B2
• Time in Patent Office: Days
• US Class Current: 280/730.1
• CPC Class Codes: B60R 2021/23107 the bag being integrated in a multi-bag system
• CPC Class Codes: B60R 2021/23169 specially adapted for knee protection
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration
• CPC Class Codes: B60R 21/239 characterised by their venting means

Abstract

An occupant protection device for protecting an occupant in a vehicle includes a main airbag arranged to be inflated in front of an upper half body the occupant, and a knee bag arranged below the main airbag to be inflated in front of legs of the occupant. The knee bag has a top end portion positioned at least 50 mm above a bottom end portion of the main airbag when the main airbag and the knee bag are fully expanded.

Claims

1. An occupant protection device for protecting an occupant in a vehicle, comprising:

a main airbag arranged to be inflated in front of an upper part of the occupant and having a bottom end portion, and

a knee bag arranged under the main airbag to be inflated in front of legs of the occupant, said knee bag partly overlapping the main airbag and having a top end portion positioned at least 50 mm above the bottom end portion of the main airbag when the main airbag and the knee bag are fully expanded.

2. An occupant protection device according to claim 1, wherein said bottom end portion of the main airbag is positioned over the top end portion of the knee bag to be located close to the occupant when the main airbag and the knee bag are fully expanded.

3. An occupant protection device according to claim 2, wherein said knee bag is completed to expand earlier than the main airbag.

4. An occupant protection device according to claims 2, wherein said knee bag includes a vent hole at a position facing the main airbag.