Tri-Power Exercising device allows a rider to simultaneously, or on demand, exercise virtually all muscle groups in his lower and upper body. The device includes a bicycle frame, pedals, forearm bars, sliding seat, computer and electronic display recommending energy modulation amounts from various muscle groups to optimize physical performance on any given trek. Because riders can exercise virtually all muscle groups at once, they reduce their exercising time, continuously builds muscle tissue throughout their whole body, and exercises their cardiovascular and respiratory systems completely. Riders operate the device by rotating legs on the pedals, rotationally oscillating the forearm bars up and down with their arms and shoulders, and then use core muscles to pull and push the seat back and forth on the slider. Inverted racks, pinion gears, and one-way bearings turn this linear power from the oscillating forearm bars and sliding seat into torque that rotates the crank axle.

Tri-Power Exercising device allows a rider to simultaneously, or on demand, exercise virtually all muscle groups in his lower and upper body. The device includes a bicycle frame, pedals, forearm bars, sliding seat, computer and electronic display recommending energy modulation amounts from various muscle groups to optimize physical performance on any given trek. Because riders can exercise virtually all muscle groups at once, they reduce their exercising time, continuously builds muscle tissue throughout their whole body, and exercises their cardiovascular and respiratory systems completely. Riders operate the device by rotating legs on the pedals, rotationally oscillating the forearm bars up and down with their arms and shoulders, and then use core muscles to pull and push the seat back and forth on the slider. Inverted racks, pinion gears, and one-way bearings turn this linear power from the oscillating forearm bars and sliding seat into torque that rotates the crank axle.

The present invention relates to a bicycle driving apparatus with a novel structure which allows a bicycle to move forward by alternately pushing each of both pedals in one direction. Since a user repeatedly presses down a left pedal (113) and a right pedal (114) to move a bicycle forward, the bicycle driving apparatus according to the present invention has an advantage of more convenience of use than a conventional bicycle driving apparatus in which the left pedal (113) and the right pedal (114) should rotate.

The present invention relates to a bicycle driving apparatus with a novel structure which allows a bicycle to move forward by alternately pushing each of both pedals in one direction. Since a user repeatedly presses down a left pedal (113) and a right pedal (114) to move a bicycle forward, the bicycle driving apparatus according to the present invention has an advantage of more convenience of use than a conventional bicycle driving apparatus in which the left pedal (113) and the right pedal (114) should rotate.

Each plate (10) includes a plate throughbore (64) secured to an end of a drive axle (52) of a bicycle (16). A pedal arm (72) is secured to an attachment post (68) that extends from the leverage plate (10) between the drive axle (52) and a perimeter edge (70) of the plate (10). Moving a pedal (82) on the pedal arm (72) downward to move the bicycle (16) in a forward, desired direction of motion (56), causes the pedal arm (72) to contact the drive axle (52). An inner end (74) of the pedal arm (72) moves the pedal arm attachment post (68) and leverage plate (10) around the plate throughbore (64). The drive axle (52) therefore becomes a fulcrum (52) of a first-class lever (88) as the pedal arm (72) is moved downward. The leverage plates (10) may retro-fit to any bicycle (16).

Each plate (10) includes a plate throughbore (64) secured to an end of a drive axle (52) of a bicycle (16). A pedal arm (72) is secured to an attachment post (68) that extends from the leverage plate (10) between the drive axle (52) and a perimeter edge (70) of the plate (10). Moving a pedal (82) on the pedal arm (72) downward to move the bicycle (16) in a forward, desired direction of motion (56), causes the pedal arm (72) to contact the drive axle (52). An inner end (74) of the pedal arm (72) moves the pedal arm attachment post (68) and leverage plate (10) around the plate throughbore (64). The drive axle (52) therefore becomes a fulcrum (52) of a first-class lever (88) as the pedal arm (72) is moved downward. The leverage plates (10) may retro-fit to any bicycle (16).

A stride emulator device for efficiently utilizing human lea, power for transference to a rotary drive system including a pair of levers, at least two gears, at least two crankshafts having crank arms, and. where each lever includes a cam and cam track.

A dual powered propulsion system for use with a human powered vehicle is provided. The system includes a connecting rod with a front end operatively coupled to yoke-connected forearm bars. The system also includes a splitter coupled to a rear end of the connecting rod, wherein the splitter is coupled to a first rack and a second rack that operate with a first and second pinion gear to turn a crank axle. This system supplies rotational power to the crank axle in a single rotational direction as the connecting rod is oscillated up and down and back and forth. Even though a solid connecting rod is used to transfer power from the oscillating forearm bars to the crank axle, the vehicle is steerable to the right or left as a result of the use of a carriage, on rollers, and a turning track operatively connected to the forearm bars.

A dual powered propulsion system for use with a human powered vehicle is provided. The system includes a connecting rod with a front end operatively coupled to yoke-connected forearm bars. The system also includes a splitter coupled to a rear end of the connecting rod, wherein the splitter is coupled to a first rack and a second rack that operate with a first and second pinion gear to turn a crank axle. This system supplies rotational power to the crank axle in a single rotational direction as the connecting rod is oscillated up and down and back and forth. Even though a solid connecting rod is used to transfer power from the oscillating forearm bars to the crank axle, the vehicle is steerable to the right or left as a result of the use of a carriage, on rollers, and a turning track operatively connected to the forearm bars.

An apparatus for converting a cycle-type exercise machine into another type of exercise machine includes a stationary frame structure that attaches to a frame of the cycle-type exercise machine, a pair of swing arms pivotally coupled with the stationary frame structure, and a pair of coupler bars pivotally coupled with the pair of swing arms on one end and rotationally attached to a crank bar of the cycle-type exercise machine on an opposite end.