Reed with optical weft detector
AssigneesBarco N.V., Picanol N.V.
InventorsPatrick Bouvyn, Frans Vandenabeele
Life of this patent
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Abstract
A loom having an optical weft detector which includes a light emitter and a light detector for picking up light reflected by a weft thread in a guide duct formed by blades of the reed, is mounted on the side of the reed which faces away from the guide duct and outside the blades, the detection zone of the light detector being spatially limited to the light reflected by the weft thread in the guide duct.
Claims10
In a loom having a reed which includes a plurality of blades forming a guide duct for a weft thread, and an optical weft detector comprising means including a light emitter for emitting light and means including a light detector for picking up portions of said light which are reflected by the weft thread, the improvement wherein:
- the light emitter and the light detector are mounted outside the blades on a side of the reed which faces away from the guide duct, and further comprising means including said blades for spatially limiting a detection zone of the light detector to a zone defined by light rays reflected in the guide duct by the weft thread.
Dependencies are inferred from the claim text.