Pedal-driven exercise machine

A pedal-driven exercise machine designed for an exerciser in a seated position to do pedaling, the pedal-driven exercise machine comprising:

• a main body portion;
• a crank unit that is rotatably supported by the main body portion;
• a pedal unit that is rotatably supported by the crank unit;
• and
• a foot space securer configured to secure a space at a foot of the exerciser by retreating the pedal unit from the foot of the exerciser when the pedal-driven exercise machine is out of use, wherein:
• the pedal unit has a toe-side region and a heel-side region that are different in positions from each other in a foot length direction,
• the toe-side region is located closer to a toe side than the heel-side region in the foot length direction,
• the toe-side region of the pedal unit is coupled to the crank unit, and
• the foot space securer includes a guide that prescribes a trajectory of the heel-side region when the pedal-driven exercise machine is in use, a guide supporter that supports the guide in such a manner as to allow a position of the guide to be changed over between a first guide position that is a position in which the guide is tilted toward an exerciser side for use of the pedal-driven exercise machine, and a second guide position that is a position in which the guide has been pulled up when the pedal-driven exercise machine is out of use, and an out-of-use guide holder that holds the guide in the second guide position.