Abstract: The jump rope device employs DC motors to rotate two ropes and a dual closed loop control system is used to synchronize the turning movements of the two ropes. An infrared beam is used to monitor the use of the machine by a user. Each motor housing is mounted on a tripod support which can be collapsed for ease of transportation and storage. A floor mat with sensors may be employed for various exercises.

Abstract: The jump rope device employs DC motors to rotate two ropes and a dual closed loop control system is used to synchronize the turning movements of the two ropes. An infrared beam is used to monitor the use of the machine by a user. Each motor housing is mounted on a tripod support which can be collapsed for ease of transportation and storage. A floor mat with sensors may be employed for various exercises.

Abstract: The jump rope device is constructed with a pair of stations disposed in mirror-image facing relation and a pair of ropes which are connected between rotating arms of each station. Each station employs a stepper motor to rotate the radially disposed arms as well as a transmission for rotating the arms in an out-of-phase relation to create a double dutch effect. The end of each rope is secured to a cord which is wound about a rotatable drum within each radial arm so that the length of exposed rope may be adjusted to a user. Should a user step on a rope, the resulting tension in the rope and cord effects an unwinding of the cord from the drum thereby allowing the rope to break away from the arm of the station.