| 摘要 |
PROBLEM TO BE SOLVED: To provide a thread clamp for a rapier head 1 which contains a clamping part 4 for firmly clamping a weft thread 3 and an actuator 5 for moving the clamping part 4. SOLUTION: The actuator 5 includes a ferromagnetic core 12, an armature 11 and at least one winding 13, wherein the winding 13 is arranged on the core or armature in order to produce a magnetic field on the core or the armature to move the armature and the clamping part, which is operationally connected to the core or the armature. The core 12 has two limbs 12.1 and 12.2 and the armature 11 is movably arranged therebetween, and limbs is provided with permanent magnets 14.1 and 14.2 in order to hold the armature at one of two rest positions in the current-free state of the winding. COPYRIGHT: (C)2008,JPO&INPIT
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