Curtain bag

• US 8,585,081 B2
• Filed: 08/01/2012
• Issued: 11/19/2013
• Est. Priority Date: 07/11/2007
• Status: Active Grant

• Current Assignee: Asahi Kasei Engineering Corporation (Asahi Kasei Corporation), Sumisho Airbag Systems Co., Ltd. (Sumitomo Corporation)
• Original Assignee: Asahi Kasei Engineering Corporation (Asahi Kasei Corporation), Sumisho Airbag Systems Co., Ltd. (Sumitomo Corporation)
• Inventors: Yamamoto, Toshiharu, Kudo, Masakazu, Kami, Yoshinori, Okuno, Tokio
• Primary Examiner(s): Ilan, Ruth
• Application Number:
  US13/564,202
• Publication Number:
  US 20130020791A1
• Time in Patent Office: 475 Days
• Field of Search: 280/743.1, 280/730.2
• US Class Current: 280/730.2
• CPC Class Codes: B60R 2021/23316 Inner seams, e.g. creating separate compartments or used as tethering means
• CPC Class Codes: B60R 2021/23514 coated fabric
• CPC Class Codes: B60R 2021/23542 Weaving
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge
• CPC Class Codes: B60R 21/2334 Expansion control features

Abstract

Provided is a curtain bag which can be brought into an inflated state as required in a short time without locally applying an excessive load to its outer peripheral joint part (1) and inner joint parts (2). The dot-like inner joint parts (2) on the inside of the outer peripheral joint part (1) are isolated from the outer peripheral joint part (1) and also made to be independent of each other.

Claims

1. A curtain bag comprising at least two pieces of cloth joined to each other at an outer peripheral joint part provided at an outer peripheral edge thereof and at a plurality of inner dot joint parts provided inside the outer peripheral joint part, characterized in that the plurality of inner dot joint parts are arranged dispersedly across the entire region of the curtain bag, and provided to be independent of the outer peripheral joint part and independent of one another, and provided more densely in a region, which comes into contact with a pillar portion of an automobile at the time of inflation, than in other regions.