Method and apparatus for making biased fabric
US4907323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1988 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Mar 15, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/1194
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus is provided for producing a woven biased fabric in which the structural fibers are skewed from the fabric centerline. The method and apparatus are particularly designed for producing a woven biased structural fabric in which the structural fibers are oriented about 45.degree. to the fabric centerline, where the flimsy, open-knit nature of the fabric makes handling extremely difficult. Broadly speaking, the apparatus includes a fabric feeding station, slitting station, and winding station. The feeding station holds a roll of conventional structural fabric (parallel and perpendicular structural fibers) woven in a tube configuration and flattened into the roll form. The feeding station rotates the roll in a vertical plane as the fabric unwinds in a horizontal direction. The slitting station includes a cutter and a pair of slatter rolls, the rolls moving the tube of fabric in the horizontal direction while rotating the tube of fabric. The cutter makes a slit in the underside of the moving fabric tube at about a 45.degree. helix angle (or other desired angle). The slit fabric comes off the slatter rolls as a strip of extremely flimsy material with the structural f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.