The ornamental design for a vibratingplate, as shown and described.
FIG. 1 is a perspective view of a vibrating plate showing our new design according to a first embodiment;
FIG. 2 is a right side view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a perspective view of a vibrating plate showing our new design according to a second embodiment;
FIG. 7 is a right side view thereof;
FIG. 8 is a front view thereof;
FIG. 9 is a top view thereof; and,
FIG. 10 is a rear view thereof.
The broken line showing of the engine is included for the purpose of illustrating portions of the vibrating plate with transport rollers and forms no part of the claimed design.