| 摘要 |
<p>A selection device for an elastic selector (2) for needles in a circular knitting machine which includes, in an upward region, an elastic portion (6) that is adapted to move the lower portion towards the outside of the cylinder and has a lower heel (7) that is adapted to move outward into a position for engagement on the part of a lifting cam (9); the selector (2) continues, in a downward region, with a tab (12) that is adapted to be attracted and retained by a fixed annular permanent magnet (13) which is arranged towards the inside of a cylinder (5) and at which one or more electromagnets (15) are mounted; the activation of the electromagnets (15) is adapted to selectively release the selectors which are otherwise retained by the permanent magnet (13) during the rotation of the cylinder (5). <IMAGE></p> |
