Pedal-type exerciser

A pedal-type exerciser, comprising:

• a base having a front end portion and a rear end portion;
• a first drive assembly including:
• a first axle mounted rotatably on said rear end portion of said base;
• first and second drive wheels mounted coaxially on said first axle;
• and a pair of first crank arms mounted securely on opposite ends of said first axle;
• a second drive assembly including:
• a second axle mounted rotatably on said front end portion of said base;
• a third drive wheel mounted on said second axle;
• a first transmission chain trained on said second drive wheel and said third drive wheel so that rotation of said second drive wheel is transmitted to said third drive wheel;
• and a pair of second crank arms mounted securely on opposite ends of said second axle, each of said pair of second crank arms having a length that is different from a length of each of said pair of first crank arms, so that a horizontal extent of movement by distal ends of said first crank arms as said first drive assembly rotates is different from a horizontal extent of movement by distal ends of said second crank arms as said second drive assembly rotates;
• a resistance device mounted on said base and coupled to said first drive wheel for providing resistance to rotation of said first axle;
• and
• a pair of elongate pedal members, each of which has a front portion and a rear portion, said rear portion of each said pedal member being mounted pivotally on a distal end of a corresponding one of said first crank arms and said front portion of each said pedal member being coupled with a distal end of a corresponding one of said second crank arms so as to permit said distal end of said corresponding second crank arm to pivot and translate with respect to said front portion to accommodate the difference in the horizontal extent of movement between the distal ends of said first and second crank arms.