Airbag device

• US 6,536,800 B2
• Filed: 02/06/2001
• Issued: 03/25/2003
• Est. Priority Date: 02/25/2000
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Japan K.K.
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Okamoto, Hideaki, Kumagai, Masayoshi, Nakahara, Shingo
• Primary Examiner(s): Dickson, Paul N.
• Assistant Examiner(s): Sliteris, Joselynn Y.
• Application Number:
  US09/776,637
• Publication Number:
  US 20010033072A1
• Time in Patent Office: 777 Days
• Field of Search: 280/743.1, 280/732, 280/728.1, 280/730.1
• US Class Current: 280/743.1
• CPC Class Codes: B60R 2021/23107 the bag being integrated in a multi-bag system
• CPC Class Codes: B60R 2021/23324 Inner walls crating separate compartments, e.g. communicating with vents
• CPC Class Codes: B60R 2021/23382 Internal tether means
• CPC Class Codes: B60R 2021/23386 External tether means
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration
• 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
• CPC Class Codes: B60R 21/2346 Soft diffusers

Abstract

An airbag device including an airbag that provides more effective protection of an occupant. The airbag has an indentation located approximately in the center of a contact surface thereof. The indentation is formed in the shape of a recess or a valley to form the airbag into a heart-like shape. The area including the indentation is at least greater than an area where comes in contact with the face of an occupant. The deepest point of the dent (the farthest point from the occupant in the contact surface) is positioned below the jaw of the occupant. The contact surface extending from the deepest point of the dent to the upper projection top thereof overhangs toward the occupant to have an angle between 0° and 45° (preferably, between 15° and 25°) relative to the cervical vertebrae axis of the occupant.

Claims

1. An airbag device for protecting an occupant of a vehicle having an instrument panel comprising:

an airbag including a middle panel having a front face with upper and lower portions, and being configured to be housed in an upper portion of the instrument panel, the airbag being adapted to be inflated and deployed toward the front of the occupant in the case of an emergency;

wherein the middle panel is connected between a pair of side panels; and

wherein each of the panels include adjacent cutout portions so that the connected panels form an indentation positioned to maintain the airbag in the shape of a heart when the airbag is inflated;

wherein an area of the front face including the indentation is greater than an area of the upper portion.

2. The airbag device of claim 1, wherein the indentation is formed in the shape of a valley in the airbag.

3. An airbag device for protecting an occupant of a vehicle having an instrument panel comprising:

an airbag configured to be housed in an upper portion of the instrument panel, the airbag including a front face for contacting the occupant when the airbag is inflated or deployed in the event of emergency;

wherein the front face of the air bag includes an upper portion and a lower portion and a cutout portion formed between the upper and lower portion so that when the front face is connected between a pair of side panels and the airbag is deployed an indentation is formed in the front face; and

wherein the upper portion includes a contact surface that is configured so that when the airbag is deployed in the event of emergency the contact surface inclines toward the occupant as the contact surface extends upwards away from the lower portion.

4. An airbag device for protecting an occupant of a vehicle comprising:

an airbag adapted to be housed in an upper portion of an instrument panel, the airbag including a front face that contacts the occupant when the airbag is inflated or deployed in the event of emergency;

wherein the front face includes an upper portion, a lower portion, and a cutout portion formed between the upper and lower portion so that when the front face is connected between a pair of side panels and the airbag is deployed an indentation is formed between the upper portion and the lower portion, the front face having a surface inclined toward the occupant, the inclined surface extending from a bottom of the indentation towards the upper portion of the front face.