Crank for an umbrella

FIG. 1 is a front perspective view of an embodiment of the crank incorporating the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 shows the crank installed on an umbrella.

The broken lines depict parts of an umbrella and parts of the crank that form no part of the claimed design.