Jump rope device
AssigneeRensselaer Polytechnic Institute
InventorsTahira Reid, Andrew Burdick
Life of this patent
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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.
Claims14
A jump rope device comprising
- a pair of stations disposed in mirror-image facing relation to each other, each station having a pair of parallel rotatable shafts, a transmission connecting said pair of shafts together to rotate in opposite directions, a stepper motor operatively connected to one of said shafts to rotate said one shaft and a pair of arms, each arm being connected to and extending radially from a respective one of said pair of shafts to rotate therewith;
- and
- a pair of ropes, each rope being secured at opposite ends to opposed arms of said stations to rotate therewith whereby rotation of said ropes is an out-of-phase relation creates a double dutch effect for a jumper.
A jump rope device comprising
- at least one station having a pair of parallel rotatable shafts, a transmission connecting said pair of shafts together to rotate in opposite directions, a stepper motor operatively connected to one of said shafts to rotate said one shaft and a pair of arms, each arm being connected to and extending radially from a respective one of said pair of shafts to rotate therewith;
- and
- a pair of ropes, each rope being secured at one end to a respective one of said arms.
Dependencies are inferred from the claim text.