Twine catcher and knife trap assembly for package tying machine
US4023837A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1976 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Sep 3, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B13/26
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The operation of the twine catcher and knife trap assembly for a package tying machine is improved by providing a specially configured operating hole in the support structure associated with the stringholder button to control the self-camming action of the button whereby the button is prevented from excessively clamping the associated tie material during the tying machine's knotting cycle yet able to provide a desired clamping action during the machine's wrapping cycle. The cutter and pull out elements on a tying machine's knife trap assembly are displaced relative to one another so as to sequentially effect the tie material dislodgement and severing operations thereby preventing any premature pull out and resultant misties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.