FIG. 1 is a front-top perspective view of the new design of the crank device;
FIG. 2 is a front-bottom perspective view thereof;
FIG. 3 is a rear-top perspective view thereof;
FIG. 4 is a rear-bottom perspective view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a left elevational view thereof;
FIG. 8 is a right elevational view thereof;
FIG. 9 is a top plan view thereof;
FIG. 10 is a bottom plan view thereof;
FIG. 11 is a top exploded view thereof;
FIG. 12 is a bottom exploded view thereof;
FIG. 13 is a front-top perspective view thereof, showing the foot pedal and the crankarm installed on to the crank device; and,
FIG. 14 is a magnified top perspective view of the leaf spring as shown in FIG. 11.
The broken lines showing: a crank sleeve, a plurality of gear teeth, a plurality of pawl teeth, a hex nut thread, and a coil spring shown in FIGS. 1-13, are included for the purpose of illustrating environmental structure and form no part of the claimed design.