We claim the ornamental design for a rake head, as shown and described.
FIG. 1 is a perspective view of a rake head.
FIG. 2 is a top view of the rake head shown in FIG. 1.
FIG. 3 is a rear view of the rake head shown in FIG. 1.
FIG. 4 is a bottom view of the rake head shown in FIG. 1.
FIG. 5 is a front view of the rake head shown in FIG. 1.
FIG. 6 is a right side view of the rake head shown in FIG. 1; and,
FIG. 7 is a left side view of the rake head shown in FIG. 1.
The present application is directed to the shape and contour of the design illustrated in the drawings. The broken line showing of the environment is for illustrative purposes only and forms no part of the claimed design.