The invention relates to a shedding device for looms, comprising up elements that move in opposite directions and the plates associated thereto, locking elements of the corresponding plate, and control devices the position of the locking elements, which comprise piezoelectric transducers of flexion. Essentially, this device is characterized in that the transducers (23,24) are movable transversely to the travel path of the associated locking elements (12,13), and that, between a locking position where they are located in the path of movement of the associated locking element and a non-blocking TPosition where they are located outside the route.
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