Extending frame for seeding machine comprises central beam, two intermediate beams which slide inside this and two outer beams which slide inside intermediate beams, seeding tools on beams being connected by tension members

摘要

The extending frame for a seeding machine comprises a central beam (2), two intermediate beams (3) which slide inside this and two outer beams (4) which slide inside the intermediate beams. The seeding tools are mounted on the beams and connected by tension members.