Device for the insertion of a weft thread into the shed between two lines of warp thread in a weaving loom
US4509563A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for the insertion of a weft thread into the shed of a weaving machine is equipped with a delivery system for depositing a pick of weft thread from a weft thread storage space into a thread collecting unit; an insertion mechanism, placed between the delivery system and the thread collecting unit, which is adapted to intermittently insert, in synchronism with the cycle of the loom, the pick of weft thread into the shed between the warp threads; and a novel feeding system for feeding the pick of weft thread from the thread collecting unit to the insertion mechanism. The feeding system may be adapted to move unidirectionaly or alternately, or continuously or intermittently. This system is equipped with gripping devices that move through a predetermined path which is outside the trajectory of the insertion device. As the grippers move through their path the pull the pick or weft thread such that it is fed into the insertion mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.