The ornamental design for a convertiblebench, as shown and described.
FIG. 1 shows an exploded view of the components of my convertible bench
which are: four hinged interfacing beveled members, and a base
consisting of a horizontal frame and two vertical supporting members.
FIG. 2 l is a perspective view disclosing the end and side not shown in
FIG. 1 of the convertible bench embodying my new design, the view
illustrating the convertible bench when positioned as a for use bench.
FIG. 3 is a second perspective view thereof, the view illustrating the
convertible bench when one of the hinged interfaced members is positioned
for use as a chair with backrest. When used as a chair, two horizontal
members remain in the folded position and two other members are put into
a peaked position.