The ornamental design for a bedframe, as shown and described.
FIG. 1 is a perspective view of a front, top, and right side of an ornamental design for a bed frame;
FIG. 2 is a perspective detail view of the front, top, and right side of the bed frame of FIG. 1;
FIG. 3 is a front elevational detail view of the bed frame of FIG. 1;
FIG. 4 is a rear elevational detail view of the bed frame of FIG. 1;
FIG. 5 is a right side elevational detail view of the bed frame of FIG. 1;
FIG. 6 is a left side elevational detail view of the bed frame of FIG. 1;
FIG. 7 is a top plan detail view of the bed frame of FIG. 1;
FIG. 8 is a bottom plan detail view of the bed frame of FIG. 1; and,
FIG. 9 is a perspective detail view of a rear, top, and right side of the bed frame of FIG. 1.
The dash-dash-dash lines showing environmental structure form no part of the claimed design. The dash-dot-dash lines form no part of the claimed design and represent boundary lines.