Publication Date: 2010-Aug-26
The IP.com Prior Art Database
A multitude of fiber guides have been developed over many years. These guides are critical to the optimum processing of textile fibers.
Textile fibers of all types, natural and synthetic, staple and continuous filament, as-spun and re-wound, micro-denier and million denier, all have at least one common need: They all depend on critical yarn contact surfaces to carry them through the multitude of different textile fiber processes, from melt spinning, to drafting, to circular knitting and every other know fiber process. Virtually all fiber processes operate with some form of yarn guide.
An example of the use of yarn guides in circular knitting is shown in U.S. Patent No. 7,540,017B2. At column 5, lines 8-18 of this patent, the operation is described referring to Figure 1 (FIG. 1):
The feeder's turning motion pulls companion yarn 38 from the bobbin 26, which is situated on a creel 42, through a series of eye guides 44,46 and 48. Thus, multiple yams may be fed from a creel according to the over end take off method. Although bobbin 26 is illustrated proximate to the main body of the circular knitting apparatus 12 in FIG. 1, the bobbin 26 may be located on a creel rack (not shown) distanced from the circular knit machine 12.
Central motor 30 drives needles 18 that pull the companion yarn 38 through eye guide 50 to be knit with the elastomeric yarn 36.
Guides are used to position the fibers in the process, to separate the fibers or drawn them together. Guides are used to fan the fibers and to traverse the fibers within a winder for precision laydown to form the wound package desired.
A traversing guide system is described in U.S. Patent No. 3,998,404 and shown in Figure 2:
[T]here is shown therein in phantom lines a package 41 contained on a winder (not shown). Adjacent to the package 41 is a roller bail 32 which is mounted on a shaft 39 which is in turn held in place by the roller bail shaft supports 32 and 34. The roller bail 33 is freely rotatable by the frictional forces applied thereto when it is placed adjacent the package 41 during its rotation.
Behind the roller bail 32 and positioned above it is a guide 30 provided with a strand guide slot 31. The guide 30 is carried on plate 40 which is bolted through bolts 35, 36, 37 and 38 to housing 14. Housing 14 contains on its interior stationary shaft 20 which is covered over approximately one half of its length by a bushing 16. Bushing 16 is provided with a plurality of ball bearings 17 which protrude from the upper surface and on the interior are in touching relationship with the shaft 20. Covering a portion of the ball bushing 16 and rigidly mounted in the housing 14 is a bushing 15 which moves the vehicle or housing 14 over the ball bearings 17 of the ball bushing 16.
Through many years and untold a...