Abstract: Disclosed herein is a human powered rail bike. The rail bike includes a chassis having a predetermined shape. Rail wheels comprising a pair of front wheels and rear wheels, roll along two rails of the track which are arranged side by side. A plurality of seats is mounted to the chassis. A one-way clutch capable of changing direction limits the rotating direction of an axle to one direction, that is, a forward direction or a backward direction. A plurality of crank pedals is rotatably mounted to the chassis, and is connected to the one-way clutch capable of changing direction via a chain. A direction conversion lever functions to convert the rotating direction of the one-way clutch. Further, a pair of brake units is provided to reduce the speed of the rail bike or stop the rail bike.

Abstract: A ergonomic tandem bicycle suitable for riders with some limited physical capabilities. The ergonomic tandem bicycle includes an elongated frame with an angled steering column attached to the front portion that positions the front wheel substantially in front of the frame, and the handlebars towards the rear. A transmission assembly includes the necessary pedal sprockets, along with idler sprockets that maintain continuous contact between the sprockets and the long drive chain required with this type of design. The seat is positioned in such a manner so as to allow the riders to sit in a near vertical position.

Abstract: A wheeled vehicle having plural wheels referenced to a frame. The vehicle includes plural seats. Human power applied through handles and the seats converts and balances a first oscillatory motion along a first axis into rotational motion, while simultaneously converting oscillatory motion along a second axis into motion about an axis connected to a reference frame. The first oscillatory motion is output for useful work. The second oscillatory motion is used for vehicle control. The vehicle may be used in a stationary state as both a teamwork and physical-conditioning device and to generate power for useful work while the vehicle is stationary. Alternately, the power generated by the occupants may couple through a transmission to rotational motion to drive wheels, and thus to propel the vehicle. Precise steering control is provided for when the vehicle is being propelled.

Abstract: A power generating apparatus for a bicycle, in particular, a racer type bicycle such as a road racer and a mountain bike, is disclosed. The power generating apparatus of the present invention composed of a power generating unit and a mount stay having suitable means for mounting the power generating unit on a bicycle. In this power generating unit, a rotor is integrated with a cylindrical circumference portion of a housing of the power generating unit. The mount stay is fitted on a front portion of a frame of a bicycle with a bolt. On this mount stay, the power generating unit is detachably mounted so that the rotor may rotate by the tire of the bicycle in contact with the cylindrical circumference portion of the rotor.