The ornamental design for a chairwedge, as shown and described.
FIG. 1 is a front perspective view of a chair wedge, illustrating the new, original, and ornamental design;
FIG. 2 is a top plan view of the chair wedge thereof, with line 8-8 being a cross sectional view;
FIG. 3 is a bottom plan view of the chair wedge thereof;
FIG. 4 is a front view of the chair wedge thereof;
FIG. 5 is a rear view of the chair wedge thereof;
FIG. 6 is a left side view of the chair wedge thereof;
FIG. 7 is a right side view of the chair wedge thereof;
FIG. 8 is a cross-sectional view thereof taken along the line 8-8 of FIG. 2;
FIG. 9 is a view of a pair of chair wedges shown in use tethered; and,
FIG. 10 is a view of a pair of chair wedges shown in use supported a stack of chairs for fall prevention.
The broken lines showing of the second wedge, tether, and stacked chairs are included for the purposes of illustrating an environment and form no part of the claimed design.