Airbag device

• US 20060131854A1
• Filed: 12/09/2005
• Published: 06/22/2006
• Est. Priority Date: 12/17/2004
• Status: Abandoned Application

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Kai, Takeshi, Tonooka, Daiei
• Application Number:
  US11/299,247
• Publication Number:
  US 20060131854A1
• Time in Patent Office: Days
• US Class Current: 280/740
• CPC Class Codes: B60R 2021/2612 Gas guiding means, e.g. ducts
• CPC Class Codes: B60R 21/26 characterised by the inflation fluid source or means to control inflation fluid flow arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10

Abstract

An airbag device comprises an inflator which generates a pressure by means of a fluid; an airbag which expands by the pressure from said inflator; and an inlet pipe which communicates between said inflator and said airbag, wherein said inlet pipe comprises: a straight portion having an approximately equal inner diameter; a throat portion provided on the downstream side of said straight portion and having an inner diameter decreased towards the downstream; and a diffuser portion provided on the downstream side of said throat portion and having an inner diameter increased towards the downstream so as to become approximately the same as the inner diameter of said straight portion.

Claims

1. An airbag device comprising:

an inflator which generates a pressure by means of a fluid;

an airbag which expands by the pressure from said inflator; and

an inlet pipe which communicates between said inflator and said airbag,

wherein said inlet pipe comprises;

a straight portion having an approximately equal inner diameter;

a throat portion provided on the downstream side of said straight portion and having an inner diameter decreased towards the downstream; and

a diffuser portion provided on the downstream side of said throat portion and having an inner diameter increased towards the downstream so as to become approximately the same as the inner diameter of said straight portion.