Thread clamp for a rapier head
AssigneeSultex AG
InventorsErich Kläui, Marius Bachofen, Dietmar Markward
Life of this patent
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Abstract
A thread clamp for a rapier head (1) is presented which contains a clamping part (4) for firmly clamping a weft thread (3) and an actuator (5) for moving the clamping part (4). The actuator (5) includes a ferromagnetic core (12), an armature (11) and at least one winding (13) which is arranged on the core or armature in order to produce a magnetic field in the latter and to move the armature and the clamping part, which is operatively connected to the latter, with the core (12) having two limbs (12.1, 12.2) between which the armature (11) is movably arranged, and with each limb being provided with a permanent magnet (14.1, 14.2) in order to hold the armature at one of the two rest positions in the current-free state of the winding.
Claims14
Thread clamp for a rapier head, which includes a clamping part for firmly clamping a weft thread and an actuator for moving the clamping part, said actuator including a ferromagnetic core, an armature and at least one winding which is arranged on the core or armature in order to produce a magnetic field in the core and the armature and to move the armature and the clamping part, which is operatively connected to the armature, characterized in that the armature is arranged movably between a first and a second rest position;
- and in that at least one holding means is provided which firmly holds the armature in the first rest position and in the second rest position respectively, when the winding is current-free.
Dependencies are inferred from the claim text.