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Centre National Detudes Spatiales

Jacques Sicre

Bernard Duperray

Alain Donzier

A reusable device for holding and releasing a bar. The device includes a tightening component, a hold and release component, and at least one loosening component. The hold and release component includes a plurality of segments, each segment includes a first bearing surface configured to bear on part of the bar, when the plurality of segments is in a holding configuration under the effect of a tightening pressure generated by the tightening component. The plurality of segments includes a second bearing surface configured to bear on one end of the at least one loosening component. The at least one loosening component is made from a first single-acting shape memory material. Each end of the at least one loosening component exerting a loosening pressure compensating for the tightening pressure, so as to place the hold and release component in a configuration in which the part of the arm is released.

Reusable, low-shock hold and release device

The invention relates to a self-driving and self-locking hinge strap for mounting between two adjacent elements (A , A ), the strap being of the type constituted by at least one resilient strip ( ) preformed to have a section that is curved and designed to be secured via its two ends to the two elements, and to occupy a folded position and a deployed position. According to the invention, each resilient strip ( ) is provided with a layer of viscoelastic material ( ) interposed between one of the faces of the resilient strip ( ) and a stress plate ( ) in such a manner as to provide a hinge that also performs a damping function.

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Toulouse, France

Jacques Sicre