Air bag for an airbag unit

• US 6,283,500 B1
• Filed: 06/14/2000
• Issued: 09/04/2001
• Est. Priority Date: 12/15/1997
• Status: Expired due to Fees

• Current Assignee: Takata-Petri AG
• Original Assignee: Takata-Petri AG
• Inventors: Haase, Carston, Schlönvoigt, Jens, Eckert, Nick
• Primary Examiner(s): Johnson, Brian L.
• Assistant Examiner(s): SLITERIS, JOSELYNN Y
• Application Number:
  US09/581,755
• Time in Patent Office: 447 Days
• Field of Search: 280/728.1, 280/730.1, 280/730.2, 280/732, 280/743.1, 280/729
• US Class Current: 280/730.1
• CPC Class Codes: B60R 2021/0004 Frontal collision
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration
• CPC Class Codes: B60R 21/232 Curtain-type airbags deploying mainly in a vertical direction from their top edge

Abstract

A gas bag for an airbag module having an outer contour and a plurality of sections, at least one of which is cut free of the remaining section of the gas bag and is able to move independently of it. The cut-free section is situated at least partly within the outer contour of the gas bag, and is of such a size and shape that the adjacent gas bag section constitutes a frame of the cut free section.

Claims

1. A gas bag for an airbag module comprising two opposite sides, an outer contour and a plurality of sections, wherein one of the plurality of sections is cut-free and is movable independently of an adjacent section of the gas-bag, the cut-free section being made by cutting through both sides, wherein at least one cut runs in the form of a slot through the opposite sides of the gas bag, and further wherein the edges of each cut on the opposite sides are connected to each other in a gas-tight manner, the cut-free section further being situated at least partly within the outer contour of the gas bag, and being of such a size and shape that the adjacent gas-bag section constitutes a frame for the cut-free gas-bag section.

2. A gas bag according to claim 1, wherein the gas bag is deployable and has a region assigned to the head of a passenger, and wherein the cut-free gas-bag section is located in the region of the gas-bag which is assigned to the head of the passenger in the deployed gas bag.

3. A gas bag according to claim 1 or 2 further comprising a region capable of connection to a gas generator, wherein the cut-free gas-bag section is situated in the region of the connection of the gas bag to the gas generator.

4. A gas bag according to claim 1 wherein the edges of each cut on opposite sides are connected by at least one additional gas-bag part.

5. A gas bag according to claim 1 wherein the gas bag is composed of an upper part and a lower part, both parts having an identical slot profile.

6. A gas bag according to claim 1 wherein the slot runs in one of a curved or angular manner.

7. A gas bag according to claim 1 herein the slot runs in the shape of a U.

8. A gas bag according to claim 1 wherein the slot has two ends, and the two ends of the slot are situated within the gas-bag outer contour.

9. A gas bag according to claim 1 further comprising two slots, each slot having two ends, wherein the slots are, situated opposite each other with their ends spaced apart.

10. A gas bag according to claim 1, wherein the slot has two ends, arid at least one end of the slot extends to the outer contour of gas-bag.

11. A gas bag according to claim 1 wherein both the slot and the outer contour of the gas bag have a profile, and the profile of the slot at least party corresponds to the profile of the outer contour of the gas bag.

12. A gas bag for an airbag module comprising two opposite sides, an outer contour and a plurality of inflatable sections, wherein one of the plurality of sections is cut-free from an adjacent section of the gas-bag and is movable independently of the adjacent section, the cut-free section being made by cutting through both sides, wherein at least one cut runs in the form of a slot through the opposite sides of the gas bag, and further wherein the edges of each cut on the opposite sides are connected to each other in a gas-tight manner, the cut-free section further being situated at least partly within the outer contour of the gas bag, and being of such a size and shape that the adjacent gas-bag section constitutes a frame for the cut-free gas-bag section.