Scraper wheel for a seed drill

Abstract

29 Abstract Scraper wheel for a seed drill An agricultural wheel (1) forms an accessory of a seed drill disc. This wheel (1) comprises a body (3) comprising a rim (7) generally of a shape of revolution around a central axis (5) and a semi-hollow-type tire (9) comprising a flexible case around a hollow chamber (13). This flexible case comprises a sheath (15) and a tread (19). This tread (19) has a profile domed towards the outside of the tire (9). The rim (7) comprises an axial section shaped as a seat (29), suitable for receiving the tire (9), and an axial section shaped as a tool (31), suitable for scraping the seed drill disc. The case includes a first sidewall (23), close to the tool section (31), connecting the sheath (15) to the tread (19). This sidewall (23) generally extends radially or slightly inclined radially. The rim (7) comprises an intermediate axial section (38) which connects the tool section (31) to the seat section (29). This intermediate section (38) is shaped as an axial stop (39) for the tire (9) which is form fitted with the first sidewall (23). The tire (9) is mounted on the seat section (29) by means of the sheath (15) in an axially stressed state which maintains the first sidewall (23) in contact against the stop (39). 29 Abstract 2020286322 11 Dec 2020

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