Patent ID: 6705546
Filing Date: 2004-03-16
Classification: A01G,A01M

Abstract:
A trailer spraying device comprising:a main frame having front and rear ends and opposite sides extending in a first direction between said ends; a tank mounted on said main frame for storing a quantity of liquid; a spray assembly mounted on said main frame comprising a spray boom projecting from said opposite sides of said main frame and means for spraying liquid from said tank through said spray boom in a predetermined pattern; means on said main frame adapted to connect the front end of said main frame to a drive assembly adapted to tow the spraying device over the surface of a field; and a wheeled support assembly including four wheels having predetermined diametrical dimensions, and mounting means for mounting two of said wheels along each of said opposite sides of said frame for rotation about axes at right angles to said first direction with the peripheries of said wheels positioned to contact the surface of a field over which the trailer spraying device is positioned so that the wheels support the main frame above the surface of the field and rotate to facilitate movement of the trailer spraying device over the field in said first direction, said mounting means including a rigid wheel adapting frame fixed to said main frame and comprising two elongate support members each spaced from a different one of the sides of said main frame to provide wheel clearance spaces between said elongate support members and the sides of said main frame each adapted to receive one of said wheels; two elongate pivot members, each of said pivot members having spaced first and second end portions, a central portion between said end portions, and opposite sides; means on each of said pivot members mounting two of said wheels on said pivot member for rotation about parallel axes transverse of said pivot member, one of said wheels being mounted on said first end portion on one of said sides of said pivot member, and the other of said wheels being mounted on the second end portion on the other of said sides of said pivot member, said parallel axes about which said wheels are rotatably mounted being spaced by a distance less than the diametrical dimensions of said wheels; and means for mounting the center portion of each of said pivot members on a different one of said elongate support members for pivotal movement of said pivot member about an axis parallel to said parallel axes about which said wheels are rotatably mounted with one of said wheels in said wheel clearance space, and the other of the wheels on the side of said elongate support member opposite said main frame.