Curved planing shield for tracked vehicles - has blade projected line forward of actual surface of upper shield section

摘要

The earth moving or planing device has a cutting blade attached to a curved planing or dozing shield supported on a thrust beam, partic., for incorporation into a tracked or crawler type vehicle. The planning shield (1) consists of at least two sections (2, 3) of curved design which join along a horizontal line above the region where the knife blade (6) is attached. The curved sections (2, 3) do not form a continuous smooth curve when joined together and the projected line of the lower curved section (2) lies in front of the actual surface of the other section (3) of the plane shield