Twine severing blade for protecting against baler needle over-tension conditions
US11382278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2020 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Dec 30, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F2015/108
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A bale binding mechanism is configured to form crop material into a bale. The bale binding mechanism includes a baling needle and a twine tensioner. A baler chassis presents a baling chamber in which the bale is formed. The baling needle is shiftable up and down relative to the baling chamber, with the needle being shiftable to advance twine upwardly along an end of the bale. The twine tensioner is configured to maintain tension on a tensioned twine section extending between the twine tensioner and the needle, with the tensioned twine section defining a twine feed axis. The twine tensioner includes a tension device that restricts upward advancement of the tensioned twine section. The twine tensioner also includes a shiftable guide element. The guide element is shiftable into and out of a twine feed position associated with upward advancement of the tensioned twine section, with the guide element operable to define an offset twine section offset from the twine feed axis in the twine feed position. The twine tensioner includes a cutting device that severs the offset twine section when a twine over-tension condition causes the guide element to shift out of the twine feed position towa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.