A bias yarn assembly forming device

摘要

PCT No. PCT/GB95/01921 Sec. 371 Date Jul. 15, 1996 Sec. 102(e) Date Jul. 15, 1996 PCT Filed Aug. 15, 1995 PCT Pub. No. WO96/06213 PCT Pub. Date Feb. 29, 1996A device for forming from warp sheet a bias yarn assembly comprising two superposed bias yarn sub-assemblies in which the bias yarns of one sub-assembly are inclined to the bias yarns of the other sub-assembly and in both of which the bias yarns are inclined to the warp feed direction includes a yarn transfer mechanism having a lower yarn guide member with upstanding yarn guide elements which extend through the thickness of the warp sheet and define warp yarn guide openings through which the warp yarns of the warp sheet pass and which hold the warp yarns in positions spaced apart in the weft direction and an upper yarn transfer member which includes yarn guide elements which extend downwardly and which define transfer openings for the reception of yarns of the warp sheet from the yard guide openings for transfer to the other yarn guide openings. The warp yarns of the warp sheet are arranged to pass through eyelet elements which are supported by guide elements for sliding movement along the guide elements and which protect the yarns during yarn movements from one opening in one member into a registering opening in the other member.