Tillage Implement

摘要

A tillage implement includes a main frame with adjustable toolbar sections thereon which each support respective tillage units thereon for engaging the ground. Each toolbar section has a first end portion coupled to the main frame by a first mounting assembly and an opposing second end portion which is coupled to the main frame by a second mounting assembly. Each one of the first and second mounting assemblies comprises a track and each of the first and second end portions of each toolbar section comprise a follower in mating engagement with the corresponding tracks. The track of the first mounting assembly is oriented closer to the lateral direction than the track of the second mounting assembly such that each toolbar section is pivotal about a respective upright axis generally at the first end portion when the toolbar section is displaced in the forward working direction at the second end portion.

主权项

1. A tillage implement comprising:
a main frame supported for movement across the ground in a forward working direction; a hitch arranged for connection to a towing vehicle; a plurality of toolbar sections supported on the main frame so as to be oriented transversely to the forward working direction; each toolbar section extending in a respective longitudinal direction between a first end portion which is coupled to the main frame by a respective first mounting assembly and an opposing second end portion which is coupled to the main frame by a respective second mounting assembly such that the toolbar section is angularly adjustable relative to the forward working direction; a plurality of tillage units supported on the toolbar sections respectively, each tillage unit comprising:
a trailing arm extending generally rearwardly from a forward end supported on the respective toolbar section to an opposing trailing end such that the trailing end is movable upwardly from a normal working position to a deflected position;a coulter disk supported on the trailing end of the trailing arm so as to be arranged for tilling the ground; anda biasing member arranged to bias the trailing arm downwardly towards the normal working position; each first mounting assembly supporting the first end portion of each toolbar section such that each toolbar section is:
slidable relative to the frame in a lateral direction perpendicular to the forward working direction; andgenerally pivotal relative to the frame about an upright axis; each second mounting assembly comprising a track and the second end portion of each toolbar section comprising a follower in mating engagement with the track of the respective second mounting assembly; the track of each second mounting assembly being arranged to guide movement of the respective toolbar section in the lateral direction as the second end portion of the toolbar section is displaced along the forward working direction; wherein each first mounting assembly comprises a track and the first end portion of each toolbar section comprises a follower in mating engagement with the track of each first mounting assembly; wherein the track of each first mounting assembly is oriented closer to the lateral direction than the track of each second mounting assembly such that each toolbar section is pivotal about the upright axis generally at the first end portion when the toolbar section is displaced in the forward working direction at the second end portion.