Flail assembly for a straw chopper shaft with a mounting hole in a bracket and such a straw chopper shaft
US10925218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | May 30, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F2009/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A flail assembly for a straw chopper shaft including: a bolt element passing through the mounting hole of the bracket, an anti-rotation element supporting the bolt element on the bracket against rotation, a first flail having a bore and being seated on the bolt element with said bore, a first fastening element connected to a first free end portion of the bolt element, and a first washer having a bore with which the first washer is seated on the bolt element. The first washer is between the first fastening element and the first flail, and is radially slotted. The bolt element is axially braced with the first fastening element relative to the longitudinal axis of the bolt element and a smallest cylindrical envelope of the first fastening element coaxial with a longitudinal axis of the bolt element has a smaller radius than the bore of the first flail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.