Automatic knot-tying device
US6279970A · kind A · utility
Inventor
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jun 20, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B27/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An automatic knot-tying device for tying a discrete knot about a workpiece, such as a bundle of wires, is disclosed herein. The present invention works by pulling a filament transversely around the workpiece. The preferred embodiment of the device comprises a hand-held housing and a knot-tying mechanism within that housing comprising a hollow nozzle for leading the filament toward the workpiece, a wrapping ring for wrapping the filament around the workpiece, and a plurality of pins that extend into and retract out of the path of the filament to form the knot. The operation is finished by cinching and cutting the loose filament so that the resulting knot is discrete and secure. Also disclosed is a method for automatically tying a knot around a workpiece by pulling, instead of pushing a filament around the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.