Auxiliary control lever

The transmission is for transmitting a reciprocating pedal movement into a rotational movement and comprises a pair of pedals suspended for reciprocating movement, two rotating cam members (29) rotating around respective cam axes (33), each rotating cam member (29) having a peripheral cam surface (31), the rotating cam members (29) being coupled to a rotating member (35) through a respective one-way clutch. Flexible tension members (63) are connecting either pedal to a respective one of the rotating cam members (29), which are eccentric to provide for a gearing ratio between angular movement of the rotating cam member (29) and translational movement of the respective pedal to vary, such that the gearing ratio has a minimum value when the pedal is in an intermediate position between its extended position and its retracted position, and major values when the pedal is in its retracted or extended position.

A Transmission For A Human Powered Vehicle (HPV) And Such Vehicle

A rear hub for mountain bikes includes a hub body and a sprocket carrier rotatably provided on a hub axle. The hub body is coupled with the sprocket carrier via a freewheel mechanism. By providing a decoupling mechanism, it is possible to decouple the sprocket carrier from the hub body.

Rear Hub and Bicycle Axle

A dual pedal driven scooter includes a frame with a front end and a rear end; a front wheel and a rear wheel connected to the frame at the front end and the rear end, respectively; a driving mechanism configured to drive the rear wheel to in turn drive the scooter; and a pedal configured to drive the scooter; wherein the driving mechanism has a driving linkage that links the pedal and the rear wheel, and the pedal is fixedly connected with the driving linkage so as to drive the rear wheel by pulling the driving linkage The invention is more comfortable and safe to use, and not only is suitable for both playing and fitness but also suitable for a short-distance walk

Dual pedal-driven scooter

Manually powered unit for driving a wheel chair

Oscillating treadle propelling mechanism for bicycles

3118 Worley, C H Feb 8 Driving-mechanism ; treadlelevers- Velocipedes are e propelled by means of a pair of reciprocating pedals, the motion of which is converted into a rotary motion of the driving- wheel The pedals a are attached to the levers b pivoted at the spindle c A driving- wire, attached to a lug on the lever b, passes over the pulley f attached to the 'saddle bracket, round a driving-pulley g on the wheel axle c, a second guide-pulley h mounted transversely on the rear fork pillar, a second driving-pulley on the opposite side of the wheel axle, and thence over another saddle bracket pulley to the other driving-lever The driving sprocket-wheels g are geared to the wheel of the cycle by means of suitable clutches arranged to come into operation as one or the other pedal is depressed The clutch shown in Fig 4 consists of a number of spring- actuated pawls k pivotally mounted on the rings m suitably secured to the hub, and these pawls engage with the teeth cut on the interior of the sprocket-wheel g By varying the point of attachment of the driving-wire, the gear of the cycle may be brought up or down The wire is attached to the lever n pivoted on the loosely-fitting collar o The pointed extremity n' of this lever engages with the teeth of a rack p, so that, by lowering the other extremity of the lever the collar o is free to move up or down

Improvements in Pedal Driving Gear for Velocipedes and the like

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Oscillating treadle propelling mechanism for bicycles

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Citations

Auxiliary control lever

A Transmission For A Human Powered Vehicle (HPV) And Such Vehicle

Rear Hub and Bicycle Axle

Dual pedal-driven scooter

Manually powered unit for driving a wheel chair

References

Improvements in Pedal Driving Gear for Velocipedes and the like

Related Papers (1)

Bicycle driven by oscillating levers