FIG. 1 is an upper perspective view of a support frame, showing my new design;
FIG. 2 is a second upper perspective view thereof;
FIG. 3 is a lower perspective view thereof;
FIG. 4 is an upper side perspective view thereof;
FIG. 5 is a side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a partial side elevational view thereof;
FIG. 8 is a partial upper perspective view thereof;
FIG. 9 is a partial perspective view thereof;
FIG. 10 is second partial perspective view thereof;
FIG. 11 is a third partial perspective view thereof;
FIG. 12 is a cross section through A-A in FIG. 6;
FIG. 13 is an upper perspective view of a support frame, showing a second embodiment of my new design;
FIG. 14 is a second upper perspective view thereof;
FIG. 15 is a lower perspective view thereof;
FIG. 16 is an upper side perspective view thereof;
FIG. 17 is a side elevational view thereof;
FIG. 18 is a top plan view thereof;
FIG. 19 is a partial side elevational view thereof;
FIG. 20 is a partial upper perspective view thereof;
FIG. 21 is a partial perspective view thereof;
FIG. 22 is second partial perspective view thereof;
FIG. 23 is a third partial perspective view thereof; and,
FIG. 24 is a cross section through B-B in FIG. 18.
The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design.