Folding Trolley Frame

FIG. 1 is a front, left, and top perspective view of a folding trolley frame showing our new design; FIG. 2 is a front elevation view thereof; FIG. 3 is a rear elevation view thereof; FIG. 4 is a left side elevation view thereof; FIG. 5 is a right side elevation view thereof; FIG. 6 is a top plan view thereof; FIG. 7 is a bottom plan view thereof; FIG. 8 is a perspective view of the folding trolley frame, shown in an alternate configuration of use, where the folding trolley frame is folded; FIG. 9 is a front elevation view of the folding trolley frame as seen in FIG. 8 ; and, FIG. 10 is a perspective view of the folding trolley frame, where the folding trolley frame is shown in an environment of use. The broken lines in the drawings depict portions of the folding trolley frame that form no part of the claimed design. Additional broken lines shown in FIG. 10 represent environmental structures and form no part of the claimed design.