An actuator device with shape-memory flexible cable

Details An actuator device with shape-memory flexible cable An actuator device with shape-memory flexible cable

Category

F - Mech Eng,Light,Heat,Weapons

Subcategory

16

Subsubcategory

C

IPC codes

F16C 1/20 (2006.01) E05B 47/00 (2006.01) F16C 1/10 (2006.01) F16C 1/12 (2006.01) G05G 7/02 (2006.01) G05G 23/00 (2006.01) E05B 65/19 (2006.01)

Type

Patent

Patent number

CA 2447925

Description

An actuator including a shape-memory flexible cable with a flexible sheath (3) can be used, by controlling it both electrically and mechanically using the sheath (3) as element for applying a mechanical tensile force. The shape-memory flexible cable (2) is provided with a coating made of synthetic or elastomer material (106) moulded thereon and adherent thereto, which favours rapid return of the shape-memory cable into its resting configuration after its activation both on account of its elastic return and owing to the fact that it favours cooling of the cable. Preferably, the coating (106) is obtained by means of a process of co-extrusion with the shape-memory cable.

Actionneur comprenant un câble souple à mémoire de forme avec une gaine flexible (3) et pouvant être utilisé, par commande à la fois électrique et mécanique au moyen de la gaine (3), en tant qu'élément pour l'application d'une force de traction mécanique. Le câble souple à mémoire de forme (2) est pourvu d'un revêtement en matériau élastomère ou synthétique (106) moulé sur celui-ci et adhérant à celui-ci, ce qui favorise le retour rapide du câble à mémoire de forme dans sa configuration de repos après son activation en raison de l'activation de son retour élastique et du fait qu'il favorise le refroidissement du câble. De préférence, le revêtement (106) est obtenu par un procédé de co-extrusion avec le câble à mémoire de forme.

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