Head protecting airbag apparatus

• US 20060108778A1
• Filed: 10/20/2005
• Published: 05/25/2006
• Est. Priority Date: 10/21/2004
• Status: Abandoned Application

• Current Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Original Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Inventors: Yamamoto, Tadashi, Kawabe, Hitoshi, Ikeda, Takanobu, Ochiai, Yasuo, Kino, Masao
• Application Number:
  US11/253,580
• Publication Number:
  US 20060108778A1
• Time in Patent Office: Days
• US Class Current: 280/730.200
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge

Abstract

A head protecting airbag apparatus of the invention which is folded up so as to be mounted in a accommodating position of a vehicle, wherein an inflating gas that is discharged from an inflator toward the front and rear of the vehicle is guided obliquely downward into an inflating shield portion of an airbag main body by a gas inlet port portion of the airbag main body and an inlet side portion of a regulator cloth.

Claims

1. A head protecting airbag apparatus mounted in an upper portion of a window of a vehicle, comprising:

an inflator having a gas discharge port which discharges an inflating gas in a longitudinal direction of the vehicle;

an airbag folded and adapted to be deployed downward so as to cover an interior side of the window when the inflating gas flows thereinto, the airbag including an airbag main body and a flexible regulator cloth,

wherein the airbag main body includes

an inflating shield portion which inflates by flowing the inflating gas thereinto to shield the interior side of the window, and

a gas inlet port portion connected to the inflator, projecting obliquely upward from an upper portion of the inflating shield portion except for portions in vicinity of a front end and a rear end thereof,

wherein the regulator cloth includes

a tubular inlet side portion disposed within the gas inlet port portion to be connected to the inflator and an outlet side portion disposed at a position on the inflating shield portion which is located in a vicinity of the gas inlet port portion,

the inlet side portion is adapted to guide downward the inflating gas discharged from the inflator, and

the outlet side portion includes a first gas outlet hole and a second gas outlet hole which are adapted to allow the inflating gas flowing out of the inlet side portion to flow, to a front side and a rear side along the inflating shield portion in a longitudinal direction of the vehicle.

2. A head protecting airbag apparatus according to claim 1, wherein the inlet side portion of the regulator cloth is formed into a tubular shape from a single piece of cloth by a stitched portion that is formed using a stitching thread, and wherein the stitched portion is disposed so as not to face the gas discharge port.

3. A head protecting airbag apparatus according to claim 1, wherein a connecting portion between the inflating shield portion and a gas discharge side of the gas inlet port portion of the airbag main body or a portion in a vicinity of the connecting portion is fixed to a body of the vehicle.

4. An airbag apparatus comprising:

an airbag folded and accommodated in a accommodating position of a vehicle, capable of projecting from the accommodating position for expansion and deployment by flowing an inflating gas thereinto; and

an inflator for supplying the inflating gas for the airbag;

wherein the airbag includes a tubular connecting port portion fitted on the inflator and connected thereto by being fastened by a clamp for allowing the inflating gas from the inflator into the airbag, and

wherein the connecting port portion has a projecting portion provided at a position thereon which is located further forward than the clamp when the connecting port portion is connected to the inflator which prevents the connecting port portion from being detached from the inflator.

5. An airbag apparatus according to claim 4, wherein the projecting portion is provided with a stitched portion that is formed by utilizing a stitching thread.

6. An airbag apparatus according to claim 4, wherein a hollow or tubular weaving is provided at a position of the airbag where the connecting port portion is provided, and

the projecting portion is provided by changing a woven structure of the hollow or tubular weaving so that a thickness of the projecting portion is increased.