Arm powered cycle

An arm powered cycle, comprising:

• a frame carrying a seat and coupled to wheels including a driven wheel;
• a yoke having a base and a pair of upright arms, and defining a lever;
• a fulcrum at the base of the yoke pivotally coupled to the frame;
• the yoke being pivotal about the fulcrum with respect to the frame, and pivotal in a fore and aft direction with respect to the seat;
• the seat and the yoke being positioned with the seat in a cavity of the yoke and between the pair of upright arms and above the base and the fulcrum;
• a linkage coupled between the yoke and the driven wheel with fore and aft motion of the yoke driving the driven wheel;
• a gimbal coupled to and between the frame and the yoke with the gimbal being pivotally coupled to the frame and the yoke being pivotally coupled to the gimbal;
• the gimbal pivoting with respect to the frame about a substantially vertical axis;
• and
• the yoke pivoting fore and aft with respect to the gimbal about a horizontal axis.

An arm powered cycle, comprising:

• a frame carrying a seat and coupled to wheels including a driven wheel;
• a hand bar pivotally coupled to the frame and pivotal in a fore and aft direction with respect to the seat, and coupled to the driven wheel;
• a linkage including a hand chain coupled to the hand bar;
• a foot crank with pedals carried by the frame and coupled to the driven wheel;
• a foot chain coupled from the foot crank;
• a combiner coupled to the foot crank and the hand bar, the combiner comprising:
• a combiner axle carried by the frame and associated with the driven wheel;
• a foot slip clutch sprocket carried by the combiner axle and coupled to the foot crank by the foot chain with the foot crank turning the foot slip clutch;
• a hand slip clutch sprocket carried by the combiner axle and coupled to the hand bar by the hand chain with the hand bar turning the hand slip clutch;
• and
• a discharge sprocket coupled to the combiner axle and the driven wheel, with the discharge sprocket being turned by the foot slip clutch, or the hand slip clutch, or both.

An arm drive configured for a cycle, comprising:

• a hand bar configured to be pivotally coupled to a frame of the cycle and pivotal in a fore and aft direction with respect to a seat of the cycle;
• an axle configured to be carried by the frame and associated with a driven wheel of the cycle;
• a pair of one-way slip clutches carried by and coupled to the axle to drive the axle in one direction and slip with respect to the axle in an opposite direction, and including a fore slip clutch and an aft slip clutch;
• a linkage coupled to the hand bar and the pair of slip clutches;
• and
• the hand bar, the pair of slip clutches and the linkage intercoupled to turn the pair of slip clutches in opposite directions with respect to one another and to:
• drive the axle in a forward direction with the aft slip clutch when the hand bar is pulled in an aft direction while the fore slip clutch slips on the axle in an opposite rearward direction, and
• drive the axle in the forward direction with the fore slip clutch when the hand bar is pushed in a fore direction while the aft slip clutch slips on the axle in the opposite rearward direction.