Compact jacquard selecting card using piezoelectrique elements

D - Textiles – Paper – 03 – C

Patent

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Details

D03C 3/20 (2006.01)

Patent

CA 2541167

A compact electronic selection card applicable for use in Jacquard equipment, having a high-density array of selecting hooks (40) which are individually positioned by piezoelectric actuator elements (20). Each piezoelectric element (20) directly controls a selecting hook (40) for engaging a corresponding hooked rod connected to a warp yarn. The engaged rods are then lifted to form the shed. Because each element directly positions the hook rather than indirectly controlling a positioning mechanism, the selection card is mechanically simple and compact.

L'invention concerne une carte compacte de sélection électronique que l'on peut utiliser dans un équipement Jacquard, ayant un réseau haute densité de crochets (40) de sélection placés individuellement par des éléments (20) d'actionneur piézo-électriques, chacun de ces éléments commandant directement un crochet de sélection (40) pour mettre en prise une tige en crochet correspondante reliée à un fil de chaîne. Les tiges en prise sont ensuite soulevées de façon à former la foule. Etant donné que chaque élément positionne directement le crochet plutôt qu'il ne commande indirectement un mécanisme de positionnement, la carte de sélection est ainsi mécaniquement simple et compacte.

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