FIG. 1 is a perspective view of a bed frame, showing a first embodiment of my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a perspective view thereof, including references for FIGS. 13-15;
FIG. 7 is a perspective view of a bed frame, showing a second embodiment of my new design;
FIG. 8 is a top plan view thereof;
FIG. 9 is a front elevation view thereof;
FIG. 10 is a rear elevation view thereof;
FIG. 11 is a right side view thereof;
FIG. 12 is a perspective view thereof, including references for FIGS. 16-18;
FIG. 13 is an enlarged partial perspective view of detail 13 taken from FIG. 6;
FIG. 14 is an enlarged partial perspective view of detail 14 taken from FIG. 6;
FIG. 15 is an enlarged partial perspective view of detail 15 taken from FIG. 6;
FIG. 16 is an enlarged partial perspective view of detail 16 taken from FIG. 12;
FIG. 17 is an enlarged partial perspective view of detail 17 taken from FIG. 12; and,
FIG. 18 is an enlarged partial perspective view of detail 18 taken from FIG. 12.
Elements shown in the drawings in broken lines are included to illustrate portions of the bed frame that form no part of the claimed design.