The ornamental design for a tarpaulinsupportdevice, as shown and described.
FIG. 1 is perspective view of a plurality of the flexible tarpaulin support devices of the present invention in place on a semi-trailer;
FIG. 2 is a perspective view of a portion of the tarpaulin support device in place on a semi-trailer;
FIG. 3 is a front view of the tarpaulin support device in place on a semi-trailer, where the back view is identical;
FIG. 4 is a front view of the tarpaulin support device, where the back view is identical;
FIG. 5 is a top view of the tarpaulin support device;
FIG. 6 is a bottom view of the tarpaulin support device; and,
FIG. 7 is a right side view of the tarpaulin support device, where the left side view is identical.
The semi-trailer shown in broken lines in FIGS. 1 through 3 is for illustrative purposes only and forms no part of the claimed design. The broken lines in FIGS. 4 through 7 indicate indeterminate length.