Devices for passenger protection systems of a vehicle

• US 8,764,050 B2
• Filed: 02/25/2013
• Issued: 07/01/2014
• Est. Priority Date: 08/27/2010
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Germany GmbH (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata AG (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Baumgartner, Peter, Feller, Jens, Grner, Axel, Fuchs, Philipp
• Primary Examiner(s): Beck, Karen
• Application Number:
  US13/775,612
• Publication Number:
  US 20130161946A1
• Time in Patent Office: 491 Days
• Field of Search: 280/728.2, 280/742, 280/730.2, 280/732, 280/741, 403/349
• US Class Current: 280/728.2
• CPC Class Codes: B60R 2021/2612 Gas guiding means, e.g. ducts
• CPC Class Codes: B60R 21/2171 specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters B60R21/2176 takes precedence
• CPC Class Codes: B60R 21/261 with means other than bag structure to diffuse or guide inflation fluid
• CPC Class Codes: Y10T 403/7007 Bayonet joint

Abstract

A device for a passenger protection system of a vehicle is provided. The device comprises an oblong gas generator which is formed and provided to provide gas for inflating a gas bag in a case of activation, wherein the gas generator includes at least one firmly arranged stay bolt protruding from the shell surface of the gas generator, and a sleeve-shaped gas conducting element connected with the gas generator, which is formed and provided to divert gas flowing out of the gas generator and introduce the same into a gas bag to be inflated. The gas conducting element is connected with at least one of the stay bolts of the gas generator by means of a bayonet connector For forming a bayonet connector the gas conducting element forms at least one joining channel for the at least one stay bolt of the gas generator and in the region in which it forms the joining channel the gas conducting element at least partly includes a material reinforcement.

Claims

1. A device for a passenger protection system of a vehicle, which comprises:

an oblong gas generator which is formed and provided to provide gas for inflating a gas bag in the case of activation, wherein the gas generator includes at least one firmly arranged stay bolt protruding from a shell surface of the gas generator,

a sleeve-shaped gas conducting element connected with the gas generator, which is formed and provided to divert gas flowing out of the gas generator and guide the same into a gas bag to be inflated, wherein

the gas conducting element is connected with at least one of the stay bolts of the gas generator by means of a bayonet connector,

for forming a bayonet connector the gas conducting element forms at least one joining channel for the at least one stay bolt of the gas generator, and

in the region in which it forms the at least one joining channel the gas conducting element is at least partly formed by a tab axially protruding from a peripheral wall of the gas conducting element,

wherein the gas conducting element includes means for locking the bayonet connector,

wherein the means for locking the bayonet connector comprise a bendable tab arranged at the gas conducting element, by means of which the bayonet connector can be secured by bending the bendable tab after reaching the end position of the stay bolt is reached.

2. The device according to claim 1, wherein the joining channel forms a first, substantially axially extending region, a second, substantially transversely extending region adjoining the first region, and a third, substantially axially extending region adjoining the second region.

3. The device according to claim 1, wherein the joining channel exclusively consists of a region extending substantially transversely to the longitudinal axis of the gas conducting element, which is formed on a protruding part of the gas conducting element.

4. A device for a passenger protection system of a vehicle, which comprises:

an oblong gas generator which is formed and provided to provide gas for inflating a gas bag in the case of activation, wherein the gas generator includes at least one firmly arranged stay bolt protruding from a shell surface of the gas generator,

a sleeve-shaped gas conducting element connected with the gas generator, which is formed and provided to divert gas flowing out of the gas generator and guide the same into a gas bag to be inflated, wherein

the gas conducting element is connected with at least one of the stay bolts of the gas generator by means of a bayonet connector,

for forming a bayonet connector the gas conducting element forms at least one joining channel for the at least one stay bolt of the gas generator, and

in the region in which it forms the at least one joining channel the gas conducting element is at least partly formed by a tab axially protruding from a peripheral wall of the gas conducting element,

wherein in the region in which it forms the joining channel the gas conducting element at least partly includes a material reinforcement,

wherein the tab is formed by folding at least two tab parts onto each other or a material doubler is arranged on the tab, so that the tab has an increased material thickness as compared to the peripheral wall of the gas conducting element.

13. The device according to claim 4, wherein the joining channel forms a first, substantially axially extending region, a second, substantially transversely extending region adjoining the first region, and a third, substantially axially extending region adjoining the second region.

14. The device according to claim 4, wherein the joining channel exclusively consists of a region extending substantially transversely to the longitudinal axis of the gas conducting element, which is formed on a protruding part of the gas conducting element.

5. A device for a passenger protection system of a vehicle, which comprises:

an oblong gas generator which is formed and provided to provide gas for inflating a gas bag in the case of activation, wherein the gas generator includes at least one firmly arranged stay bolt protruding from a shell surface of the gas generator,

a sleeve-shaped gas conducting element connected with the gas generator, which is formed and provided to divert gas flowing out of the gas generator and introduce the same into a gas bag to be inflated,

wherein the gas conducting element includes a substantially transversely extending joining channel into which at least one of the stay bolts of the gas generator can be introduced by a rotary movement effected in peripheral direction, wherein the joining channel is at least partly formed on a part of the gas conducting element axially protruding at a front of the gas conducting element,

wherein the protruding part includes a bendable or flexible tab by means of which the joining channel can be closed after introducing the stay bolt into the joining channel.

7. The device according to claim 5, wherein the substantially transversely extending joining channel widens towards its end.

8. The device according to claim 5, wherein in a peripheral wall of the gas conducting element at least one punctual- or line-shaped constriction is formed, which provides a tilt protection of the gas conducting element with respect to the gas generator.

9. The device according to claim 5, wherein the substantially transversely extending joining channel widens towards its end by forming an approximately circular region.

6. A device for a passenger protection system of a vehicle, which comprises:

an oblong gas generator which is formed and provided to provide gas for inflating a gas bag in the case of activation, wherein the gas generator includes at least one firmly arranged stay bolt protruding from a shell surface of the gas generator,

a sleeve-shaped gas conducting element connected with the gas generator, which is formed and provided to divert gas flowing out of the gas generator and introduce the same into a gas bag to be inflated,

wherein the gas conducting element includes a substantially transversely extending joining channel into which at least one of the stay bolts of the gas generator can be introduced by a rotary movement effected in peripheral direction, wherein the joining channel is at least partly formed on a part of the gas conducting element axially protruding at a front of the gas conducting element,

wherein the protruding part is formed by folding a partial region cut out in the material blank of the gas conducting element spread out flat, which is connected with the material blank only via a folding axis extending in axial direction, onto a partial region of the material blank formed substantially symmetrical thereto, wherein in both partial regions transversely extending regions of the joining channel are formed, which after folding the one partial region onto the other partial region come to lie one on top of the other.

10. The device according to claim 6, wherein the substantially transversely extending joining channel widens towards its end.

11. The device according to claim 6, wherein in a peripheral wall of the gas conducting element at least one punctual- or line-shaped constriction is formed, which provides a tilt protection of the gas conducting element with respect to the gas generator.

12. The device according to claim 6, wherein the substantially transversely extending joining channel widens towards its end by forming an approximately circular region.