Invention Grant
- Patent Title: Air bag door, method of controlling breakage of fracture lines, and method of deploying air bag
- Patent Title (中): 气袋门，断裂线断裂方法，以及展开气囊的方法
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Application No.: US12309779Application Date: 2007-07-30
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Publication No.: US08011688B2Publication Date: 2011-09-06
- Inventor: Takahiro Komura , Junya Usami , Hideyuki Hayashi , Takahiro Muranushi , Kenji Katou
- Applicant: Takahiro Komura , Junya Usami , Hideyuki Hayashi , Takahiro Muranushi , Kenji Katou
- Applicant Address: JP Aichi
- Assignee: Toyota Shatai Kabushiki Kaisha
- Current Assignee: Toyota Shatai Kabushiki Kaisha
- Current Assignee Address: JP Aichi
- Agency: Jordan and Hamburg LLP
- Priority: JP2006-208067 20060731; JP2006-208705 20060731; JP2006-326970 20061204; JP2007-140013 20070528
- International Application: PCT/JP2007/065317 WO 20070730
- International Announcement: WO2008/016160 WO 20080207
- Main IPC: B60R21/20
- IPC: B60R21/20
Abstract:
An air bag door in which the remaining thickness of a substrate at a centerline of a fracture groove formed into the shape of an air bag door on a back surface of the substrate is set to be smaller than other portions, and dotted fracture perforations for braking the superficial material are selectively provided at the centerline portion and near meeting points between sidelines and the centerline.According to the invention described above, the substrate and the superficial material of the air bag door are broken in a desirable order of breakage by portions synchronously with each other when the air bag is expanded and deployed.
Public/Granted literature
- US20090278338A1 Air Bag Door, Method of Controlling Breakage of Fracture Lines, and Method of Deploying Air Bag Public/Granted day:2009-11-12
Information query
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