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1. 发明公开

EP1426630A1 Controlled releasable velcro-like fastener system 审中-公开
标题翻译： Klettband-ähnlicheskontrolliertlösbaresBefestigungssystem
公开(公告)号：EP1426630A1
公开(公告)日：2004-06-09
申请号：EP03025436.1
申请日：2003-11-05
申请人： General Motors Corporation
发明人： Powell, Bob Ross , Browne, Alan L.
IPC分类号： F16B5/07 , A44B18/00 , F16B1/00
CPC分类号： A44B18/0007 , A41D2300/326 , A44B18/0003 , A44B18/0096 , A44D2203/00 , B64C33/02 , C08L2201/12 , F16B1/0014 , F16B5/07 , F16B2001/0028 , F16B2001/0035 , F16F2224/045 , Y10T24/27 , Y10T24/2783 , Y10T29/49821 , Y10T428/24017
摘要： A releasable fastener system (10) comprises a loop portion (12) and a hook (14) portion. The loop portion includes a support (16) and a loop material (18) disposed on one side thereof. The hook portion generally includes a support (20) and a plurality of closely spaced upstanding hook elements (22) extending from one side thereof, wherein the plurality of hook elements comprises a first portion fabricated from a shape memory material and at least one additional portion fabricated from a different shape memory material. An activation device (24) is coupled to the plurality of hook elements, the activation device being operable to selectively provide an activation signal to the plurality of hook elements to change a shape orientation, a yield strength property, a flexural modulus property, or a combination thereof to reduce a shear force and/or a pull-off force of an engaged hook and loop portion. 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 suitable 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. Also disclosed herein are processes for operating the releasable fastener system.
摘要翻译：可释放的紧固件系统（10）包括环部分（12）和钩（14）部分。环路部分包括支撑件（16）和设置在其一侧的环形材料（18）。钩部分通常包括支撑件（20）和从其一侧延伸的多个紧密间隔的直立钩元件（22），其中多个钩元件包括由形状记忆材料制成的第一部分和至少一个附加部分由不同的形状记忆材料制成。激活装置（24）联接到所述多个钩元件，所述激活装置可操作以选择性地向所述多个钩元件提供激活信号以改变形状取向，屈服强度特性，弯曲模量特性或其组合以减少接合的钩环部分的剪切力和/或拉力。当钩部分和环部分被压在一起时，它们互锁以形成可释放的接合。通过接合产生的所得接头相对于剪切力和拉力相对地抵抗，并且剥离强度力弱。向多个钩元件引入合适的激活信号导致形状取向，弯曲模量特性或其组合的改变，其有效地减少了可释放接合中的剪切力和/或拉拔力。以这种方式，可释放的紧固件系统的脱离提供了在受控条件下钩部分与环部分的分离。本文还公开了用于操作可释放紧固件系统的方法。

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