发明名称 |
Controlled releasable velcro-like fastener system |
摘要 |
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion includes a support and a plurality of closely spaced upstanding hook elements extending from one side thereof, wherein the plurality of hook elements comprises a fiber and a shape memory alloy coating deposited onto the fiber, and wherein the fiber and the shape memory alloy coating comprises a non-axisymmetric coating or deposition of the shape memory alloy about a portion of the fiber. When the hook portion and loop portion are pressed together they interlock to form a releasable engagement. The resulting joint created by the engagement is relatively resistant to shear and pull forces and weak in peel strength forces. Introducing a thermal activation signal to the plurality of hook elements causes a change in shape orientation, flexural modulus property, or a combination thereof that is effectively reduces the shear and/or pull off forces in the releasable engagement. In this manner, disengagement of the releasable fastener system provides separation of the hook portion from the loop portion under controlled conditions. |
申请公布号 |
EP1426629(A3) |
申请公布日期 |
2006.06.07 |
申请号 |
EP20030025435 |
申请日期 |
2003.11.05 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
CHENG, YANG-TSE;NI, WANGYANG;ULICNY, JOHN C. |
分类号 |
A44B99/00;F16B1/00;A44B18/00;B64C33/02;F16B5/07;H02N2/00 |
主分类号 |
A44B99/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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