US 10,368,472 B2 · Disc opener scraper with insert for straw wrap prevention, wear reduction and seed guidance, and welded slot-positioned wing member

Abstract

A unique scraper assembly for the disc of a furrow opener features an obstruction carried at inner side of the scraper body in a position trailing behind the leading scraper edge to prevent straw from accumulating in the space between the disc and scraper near the leading scraper edge, to block seed or other product delivered into the furrow from skipping forward into this space, to reduce wear on the leading scraper edge by increasing an area of pressured contact with the disc during side loading of the scraper, and/or provide lubricated contact with the disc to reduce rotational resistance during side loading. In some embodiments, the obstruction is defined by a separate insert of distinct material composition from the scraper. A discrete wing member is welded to the scraper at a pre-determined position thereon determined by fitting of the wing member into a mating slot in the scraper.

Claims27

Dependent claims

A furrow opener comprising:

a disc arranged to be displaced across an area of ground in a forward working direction to open a primary furrow in the ground;
a scraper assembly comprising:
a scraper body extending generally rearward from a leading scraper edge of the scraper body to a rear trailing edge of the scraper body, the leading scraper edge of the scraper body being supported alongside the disc in contact or proximity thereto to scrape soil buildup therefrom;
and
an obstruction carried in a position trailing closely behind the leading scraper edge on an inner side of the scraper body facing the disc, said obstruction spanning at least a majority of a length of the leading scraper edge and providing the scraper assembly with an increased thickness at the position of the obstruction relative to a thickness of the scraper assembly at the leading scraper edge;
wherein the obstruction is defined by an insert body that is separate and distinct from the scraper body, spans at least a majority of a gap width measured between the scraper body and the disc at the location of said obstruction, and occupies a space delimited between said scraper body and said disc at an angled portion of said scraper body that extends rearward from the leading scraper edge at an oblique angle to the disc.

3 more elements

Dependencies are inferred from the claim text.

Disc opener scraper with insert for straw wrap prevention, wear reduction and seed guidance, and welded slot-positioned wing member

Life of this patent

Disc opener scraper with insert for straw wrap prevention, wear reduction and seed guidance, and welded slot-positioned wing member

Life of this patent

Abstract

Claims27