Rapier loom having a picking mechanism adjustable to yarn properties
US5241994A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Jun 18, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/275
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A rapier loom has a picking mechanism in which one rapier (a giver rapier) transfers a weft yarn to another rapier (a taker rapier) in mid-shed. Each rapier is oscillated toward and away from one another by a drive and includes a yarn clamp which is actuated by a clamp opener to provide reliable yarn transfer from one rapier to the other. The rapier drives and/or clamp openers are driven by programmed servomotors. In this way, the velocities of the rapiers and/or the interval in which the clamp openers are opened can be adjusted according to the properties of the particular weft yarns used to ensure reliable transfer without damaging the yarn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.