Yarn feeder
US7080601B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 21, 2004 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Jul 21, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05C15/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn feeder for a tufting machine is compact and simple in structure and is still capable of freely changing the heights of piles formed by each pile yarn on a fabric. The yarn feeder includes yarn feed rolls for feeding pile yarns to a row of needles of the tufting machine, and a brake device provided between the feed rolls and the needles. The brake device includes a grooved plate having grooves arranged in the width direction of the grooved plate and each receiving one of the pile yarns that are being fed from the feed rolls to the needles, and presser members each opposing one of the grooves. The presser members are movable toward and away from the respective grooves independently of one another. By pressing selected one or ones of the presser members against the bottoms of the corresponding grooves with yarns sandwiched therebetween, the feed rates of the yarns can be freely changed independently of one another without unduly increasing the size of the yarn feeder or complicating its structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.