| 摘要 |
A device including a plurality of spaced pairs of parallel plates (2) at a spacing (<u>e</u>) identical to that between two consecutive rows of needles, wherein selection members (7) associated with the needles (1) of one row and movable in a single plane parallel to the plane of the plates (2) are mounted in the space between two consecutive plates (2), and one two-part electromagnetic circuit for generating at least one induced electromagnetic field (C1) across the plane of the plates (2) is provided in said space for each selection member (7), the two parts of the electromagnetic circuit being mounted on respective facing surfaces (2<u>a</u>, 2<u>b</u>) of said plates. Each selection member (7) comprises a magnetised portion positioned between the two parts of the corresponding electromagnetic circuit to enable the movement thereof to be controlled. |
