Needle coupling device for an agricultural baler
US10455770B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Apr 19, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F2015/0866
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A baler including a bale chamber; a plunger to compress crop material in the bale chamber to form a bale; a plurality of knotters; a needle yoke with a plurality of needles to deliver a plurality of lower strands through the bale chamber to the plurality of knotters; a tucker arm shaft carrying a plurality of tucker arms to deliver a plurality of upper strands to the plurality of knotters; a driving shaft located above the bale chamber and extending in a traverse direction of the baler; wherein the tucker arm shaft extends parallel to the driving shaft; a tucker arm coupling device to covert the rotation of the driving shaft into a rotation of the tucker arm shaft; a needle coupling device to convert a rotation of the driving shaft into a movement of the needle yoke from a rest position to a twine delivery position and back.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.