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(11) | EP 1 333 115 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | A tension-sensing device for the thread of weft feeders in textile machines |
(57) A device for sensing the mechanical tension of the thread (F) and for converting
it into electrical signals for driving modulated braking means (17) in weft feeders
(10) for textile machines comprises a thread-guiding bush (19) crossed by the thread
that unwinds from the drum (11) of the feeder (10) and means (24-25) for sensing and
converting the mechanical tension that the thread transmits to the bush. According
to the invention, the thread-guiding bush (19) is rigidly coupled to one of the rigid
elements of a suspension frame (20) so as to be an integral part thereof, and the
frame comprises at least two rigid frame elements (19a-21) and at least two elastically
deformable elements (22-23), which are mutually and rigidly connected to each other
according to a configuration shaped substantially like an elastically deformable quadrilateral. |