Device for needling a fibrous web
US8156618B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 16, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jul 16, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H18/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a device for needling a fibrous web having at least one needle bar. The needle bar carries a needle board on the bottom thereof having a plurality of needles, the needle bar being guided by means of a moveably mounted bar carrier. The bar carrier is driven by a vertical drive in an oscillating manner in up and down movements. For straight guidance of the bar carrier, a guiding device is provided, which has at least one rocker held at the end by a rotary bearing of a machine frame. In order to obtain the straightest possible guide path in the bar carrier, according to the invention the opposite end of the rocker and the bar carrier are connected by a plurality of members of a coupling kinematic mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.