Junction with symmetrical weave for woven band with...

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 1/00 (2006.01) D03D 3/04 (2006.01)

Patent

CA 2360842

The invention concerns a woven band (10) with asymmetric weave formed with weft yarns (11-15, 17-24) and warp yarns (16) extending between two opposite ends of the band. The warp yarns are rewoven after a folding at each end of the band, with the weft yarns on a zone of reweaving (B, B') so as to define a symmetrical weave having a neutral plane (PN) merging with the band median plane (PM) wherein the jointing line of the two ends of the band extends. The warp yarns (16) have a flattened cross-section and are folded orthogonal to the fabric plane at each end thereof. The weft yarns (17-24) of the reweaving zone have a smaller diameter than the warp yarns (11-15) of the remainder of the weft yarns such that the latter has a constant thickness over its whole length.

La bande tissée (10) a une armure asymétrique constituée par des fils de trame (11-15, 17-24) et des fils de chaîne (16) s'étendant entre deux extrémités opposées de la bande. Les fils de chaîne sont retissés, aprés un pliage à chaque extrémité de la bande, avec les fils de trame sur une zone de retissage (B, B') de telle manière à définir une armure symétrique ayant un plan neutre (PN) confondu avec le plan médian (PM) de la bande dans lequel s'étend la ligne de jonctionnement des deux extrémités de la bande. Les fils de chaînes (16) ont une section aplatie et sont pliés de façon orthogonale au plan de la toile à chaque extrémité de celle-ci. Les fils de trame (17-24) des zones de retissage ont un diamètre plus petit que les fils de trame (11-15) du reste de la bande de sorte que celle-ci a une épaisseur constante sur toute sa longueur.

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