Yarn storage and feed device
US5160097A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1991 |
| Grant date | Nov 3, 1992 |
| Priority date | — |
| Expiry date | Jun 3, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn storage and feed device for textile machines, comprising a storage body defining a storage surface as well as a winding member for the yarn, the winding member and the storage member being adapted to be rotated relative to each other for transporting the yarn from a feed side of the device onto the storage surface of the storage member and for forming a yarn supply from which the yarn is removed towards the take-off side of the device, and further comprising yarn guide members, which are arranged in the yarn path from the feed area to the take-off area and which are provided with yarn guide surfaces coated with sintered ceramic material or consisting of sintered ceramic material, the yarn being deflected on the yarn guide surfaces at various angles. With regard to particularly advantageous frictional conditions, at least the yarn guide surface (L) having the largest deflection angle (180.degree.-.alpha.) is made of a high-density sintered material containing mainly nitride, carbide and/or carbonitride hard materials. This sintered material is formed in an encapsulation in accordance with an isostatic hot-press sintering method for producing thus a yarn guide member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.