Plant cutting device

A suspension system for a plant cutting device, the suspension system comprising:

• a frame mount arranged to couple to a vehicle;
• a cutter mount arranged to couple to a plant cutting device, the cutter mount being arranged at a lower level than the frame mount;
• and
• an adjustment system coupled between the frame mount and the cutter mount, the adjustment system comprising:
• a first adjustment mechanism coupled to the frame mount at a first point and to the cutter mount at a second point, and arranged to allow a first vertical distance between the first point and the second point to vary;
• and
• a second adjustment mechanism coupled to the frame mount at a third point horizontally spaced from the first point and to the cutter mount at a fourth point horizontally spaced from the second point, and arranged to allow a second vertical distance between the third point and the fourth point to vary;
• wherein the adjustment system is arranged to prevent horizontal displacement of the cutter mount relative to the frame mount.

A suspended plant cutting system comprising:

• a suspension system for a plant cutting device, the suspension system comprising:
• a frame mount arranged to couple to a vehicle;
• a cutter mount, the cutter mount being arranged at a lower level than the frame mount;
• and
• an adjustment system coupled between the frame mount and the cutter mount, the adjustment system comprising:
• a first adjustment mechanism coupled to the frame mount at a first point and to the cutter mount at a second point, and arranged to allow a first vertical distance between the first point and the second point to vary;
• and
• a second adjustment mechanism coupled to the frame mount at a third point horizontally spaced from the first point and to the cutter mount at a fourth point horizontally spaced from the second point, and arranged to allow a second vertical distance between the third point and the fourth point to vary;
• wherein the adjustment system is arranged to prevent horizontal displacement of the cutter mount relative to the frame mount, and
• a plant cutting device coupled to the cutter mount, the plant cutting device comprising:
• a power source fixed to the mount, the power source being arranged to generate a torque;
• a cutter housing;
• a cutting member extending radially outwardly from the cutter housing and arranged to cut vegetation due to rotation of the cutting member;
• a skid arranged to contact a ground surface, and
• a bearing arranged between the cutter housing and the skid such that the skid is rotatably coupled to the cutter housing by the bearing,
• wherein the cutter housing comprises an annular lip extending downwardly at a location radially outside the bearing, and
• wherein the skid has a bowl-shaped outer surface that is axisymmetric about a first axis.