Releasable tether retention system

• US 8,678,432 B1
• Filed: 06/03/2011
• Issued: 03/25/2014
• Est. Priority Date: 06/03/2010
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Acquisition, LLC
• Original Assignee: TK Holdings Incorporated (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Quioc, Eduardo L., Stevens, Bruce A.
• Primary Examiner(s): Dickson, Paul N
• Assistant Examiner(s): Freedman, Laura
• Application Number:
  US13/153,339
• Time in Patent Office: 1,026 Days
• Field of Search: 280/736, 280/739, 280/742, 280/743.1, 280/743.2
• US Class Current: 280/743.2
• CPC Class Codes: B60R 2021/23384 having ends which are movable or detachable during deployment
• CPC Class Codes: B60R 2021/2395 comprising means to control the venting
• CPC Class Codes: B60R 21/2338 Tethers

Abstract

The present invention incorporates a tether release system within a conventional airbag system or a conventional vehicle occupant protection system. Release of an associated tether may simultaneously open a vent on an associated airbag. A housing contains an actuator contained within the housing for actuation of the tether release system upon receipt of a crash detection signal, for example. A first moving member is configured for receipt of a propulsive force emanating from the actuator upon actuation of the tether release system. A movable tether release member is contained within the housing wherein the movable tether release member operably communicates with the first moving member upon actuation of the tether release system, for release of an associated tether.

Claims

1. A tether release system comprising:

a housing containing a first end and a second end, and an axial bore;

a first movable member contained within said housing, and structured to slidably travel within said axial bore upon actuation of said tether release system;

a second movable member structured to operably communicate with said first movable member upon actuation of said tether release system, a first portion of the second movable member including a first side, a second side opposite the first side and facing the first movable member, and an opening structured to permit passage of a portion of a tether from the first side through the opening to the second side prior to actuation of said system;

an actuator fixed within said first end of said housing and adapted to operably communicate with said first movable member upon actuation of said tether release system; and

a tether retainer structured to operably communicate with said second movable member upon actuation of said system,

wherein said second movable member is configured to release an associated tether upon actuation of said tether release system.

2. The tether release system of claim 1 further comprising a base attachable to the housing and structured so as to enable attachment of the housing to a vehicle or other device via the base, and wherein said tether retainer comprises a support element formed from a portion of the base.

3. The tether release system of claim 1 further comprising a base attachable to the housing and structured so as to enable attachment of the housing to a vehicle or other device via the base, wherein said second movable member slidably engages said base upon actuation of said tether release system.

4. The tether release system of claim 1 further comprising a base attachable to the housing and structured so as to enable attachment of the housing to a vehicle or other device via the base, and wherein the first side of the second movable member first portion is structured to be slidable along the base upon actuation of the tether release system.

5. The tether release system of claim 1 wherein the second movable member opening has a pair of opposed edges and is sized with respect to the tether retainer such that a portion of the tether is supported by at least one edge of the pair of edges along the second side of the first portion of the second movable member.

6. A releasable tether retention system comprising:

a housing;

a base attachable to the housing and structured so as to enable attachment of the housing to a vehicle or other device via the base;

a support element operably coupled to the housing and structured for supporting a tether; and

a movable element mounted within the housing and operatively coupled to the support element such that the movable element is movable from a first position to a second position,

wherein the system is configured to secure the tether to the support element when the movable element is in the first position,

and configured such that movement of the movable element from the first position to the second position forces the tether to disengage from the support element,

wherein the support element is formed from a portion of said base, and

wherein the movable element includes;

a first movable member slidably mounted in the housing, and

a second movable member engaged with said first movable member,

said second movable member being slidably engageable with said base upon actuation of said releasable tether retention system.

7. A tether release system comprising:

a housing containing a first end and a second end, and an axial bore;

a base attachable to the housing and structured so as to enable attachment of the housing to a vehicle or other device via the base,

a first movable member contained within said housing, and adapted to slidably travel within said axial bore upon actuation of said tether release system;

a second movable member adapted to operably communicate with said first movable member upon actuation of said tether release system; and

a support element coupled to the housing and structured to engage a tether to support the tether thereon,

wherein said second movable member is structured to exert a force on the tether when supported on the support element, the force being sufficient to remove the tether from engagement with the support element upon actuation of said tether release system, and

wherein the system is structured such that the second movable member is positioned between the support element and the base prior to activation of the tether release system to release the tether.

8. A releasable tether retention system comprising:

a housing;

a base attachable to the housing and structured so as to enable attachment of the housing to a vehicle or other device via the base;

a support element operably coupled to the housing and structured for supporting a tether; and

a movable element mounted within the housing and operatively coupled to the support element such that the movable element is movable from a first position to a second position,

wherein the system is configured to secure the tether to the support element when the movable element is in the first position,

and configured such that movement of the movable element from the first position to the second position forces the tether to disengage from the support element,

wherein the base includes an opening structured to receive a portion of the tether therethrough for attachment to the support element prior to activation of the releasable tether retention system to release the tether.

9. The releasable tether retention system of claim 8 wherein the system is structured such that a second movable member is positioned between the support element and the opening in the base prior to activation of the tether release system to release the tether.