single-row seeder with an improved trailer frame

摘要

MONOGRAM SEEDER BEARING A PERFECT INTERELING FRAMEWORK The present invention relates to a precision seed drill (1) comprising a chassis (2) on which the sowing elements (3) and a trailer frame (4) are regularly distributed ) comprising an upper belt (5) and two lower belts (6), allowing connection to a three-point coupling (7) of a tractor, said coupling frame (4) being connected to said chassis (2) by means of an upper crossmember (9) and two fixing plates (10); said upper belt (5) extends over said upper crossmember (9) and substantially in a median vertical plane (11) of said seeder (1) said lower belts (6) extend underneath and on one side and the another of the median vertical plane (11). The seeder is remarkable in that said fixing plates (10) extend respectively in the vicinity of a medium plane (13) extending substantially midway between the median vertical plane (11) and a plane (14) passing through the corresponding lower belt (6), planes (13, 14) which are substantially parallel to the median vertical plane (11).