The ornamental design for a frame of swing, as shown and described.
FIG. 1 is a perspective view of the frame of the swing, showing my new design;
FIG. 2 is a front elevation view of the frame of the swing shown in FIG. 1;
FIG. 3 is a rear elevation view of the frame of the swing shown in FIG. 1;
FIG. 4 is a left-side elevation view of the frame of the swing shown in FIG. 1;
FIG. 5 is a right-side elevation view of the frame of the swing shown in FIG. 1;
FIG. 6 is a top plan view of the frame of the swing shown in FIG. 1;
FIG. 7 is a bottom plan view of the frame of the swing shown in FIG. 1; and,
FIG. 8 is a perspective view of the frame of the swing shown in FIG. 1, on which a set of pad is installed.
The broken lines showing slender tubes in FIGS. 1-7 and the broken lines showing the soft goods in FIG. 8 are for illustrative purposes only and form no part of the claimed design.