Tandem exerciser and power generator
First Claim
1. A tandem exerciser for forward pedaling and mutually facing riders comprising:
- a frame having proximal and distal ends;
a flywheel rotatably coupled to the frame;
a standing support means;
a first seat mounted to the proximal end of the frame for a first user and a second seat mounted to the opposite distal end of the frame for a second user such that the seats are facing each other;
a proximal pair of foot pedals and a distal pair of foot pedals operably connected to simultaneously drive the flywheel;
proximal pedal cranks and distal pedal cranks;
a pair of handle bar cranks operably connected to the frame wherein one end of each handle bar crank is pivotally connected to a respective said distal foot pedal, an opposite end of the handle bar crank is bifurcated into handle bars such that the first and second user can simultaneously grip and actuate the handle bars, and a middle portion of the handle bar crank is pivotally coupled to a cross member of the frame thereby providing a common pivot axis for both handle bar cranks; and
a power transmission means, operably mounted to the frame, having a drive mechanism that includes at least two chains, one of which is twisted less than one-hundred-eighty degrees, to allow for both users to simultaneously pedal in their respective forward directions to drive said flywheel.
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Accused Products
Abstract
A tandem exerciser is described with two facing seats and two pedal cranks that cause tandem riders to face each other and pedal forwards. A mutually operable handlebar crank with opposing handles mechanically couples to pedals on both sides of the distal pedal crank. A single sprocket wheel concentrically attached to the proximal pedal crank is coupled by a twisted, figure-eight looped chain to one of two sprocket wheels coupled to the distal pedal crank. These opposing sprocket wheels are mounted to their respective pedal cranks so as to have opposite offset angles relative to vertical plane of frame. These offset angles prevent damaging physical contact between sides of chain. The remaining sprocket wheel of distal pedal crank is conventionally chain coupled to freewheel coupled to hub of flywheel. Optionally, a power generator is belt-coupled to outer rim of flywheel, to produce electrical, fluidic or motive power.
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Citations
14 Claims
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1. A tandem exerciser for forward pedaling and mutually facing riders comprising:
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a frame having proximal and distal ends;
a flywheel rotatably coupled to the frame;
a standing support means;
a first seat mounted to the proximal end of the frame for a first user and a second seat mounted to the opposite distal end of the frame for a second user such that the seats are facing each other;
a proximal pair of foot pedals and a distal pair of foot pedals operably connected to simultaneously drive the flywheel;
proximal pedal cranks and distal pedal cranks;
a pair of handle bar cranks operably connected to the frame wherein one end of each handle bar crank is pivotally connected to a respective said distal foot pedal, an opposite end of the handle bar crank is bifurcated into handle bars such that the first and second user can simultaneously grip and actuate the handle bars, and a middle portion of the handle bar crank is pivotally coupled to a cross member of the frame thereby providing a common pivot axis for both handle bar cranks; and
a power transmission means, operably mounted to the frame, having a drive mechanism that includes at least two chains, one of which is twisted less than one-hundred-eighty degrees, to allow for both users to simultaneously pedal in their respective forward directions to drive said flywheel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification