Abstract: A standard-sized bicycle includes a main frame, a drive wheel and a rowing mechanism. The rowing mechanism is coupled to the main frame about a fulcrum. The fulcrum allows the rowing mechanism to oscillate forward in response to a pushing force and backward in response to a pulling force. The rowing mechanism includes a power lever and a pair of drive levers. The power lever has a handle on one end. The power lever also has a second end. The pair of drive levers extends from the second end of the power lever. Each of said pair of drive levers is in mechanical communication with the drive wheel such that both a forward oscillation of the rowing mechanism and a backward oscillation of the rowing mechanism drive the drive wheel in the same direction of rotation.

Abstract: A reciprocal upward and downward pedaling bicycle structure includes a main shaft of a free wheel at a chain wheel shaft, a driving body pivotally coupled to a frame of the main shaft, a pedal crank and a support rod on the driving body, and a driving belt linked to the main shaft and the support rod. An end of the driving belt is dragged to the frame by a resilient element. By the action of the resilient element ands the rotation of the main shaft, the crank and pedal are pulled by the driving belt to provide an upward bounce and the chain wheel drives the rear wheel shaft through the main driving belt. When the pedal is stepped downward, the main shaft and the chain wheel are rotated synchronously to drive the rear wheel of the bicycle to move forward.

Abstract: In one embodiment, a wheelchair comprises an armature configured to be manipulated by a user of the wheelchair during a propulsion stroke to drive at least one wheel of the wheelchair, wherein the armature is extensible such that its length increases as it is moved away from the wheelchair user. In another embodiment, a wheelchair comprises a gear mechanism configured to drive a wheel of the wheelchair in at least one direction, the gear mechanism including an electronically-controlled actuator that is configured to control a direction in which the wheel can be driven.

Abstract: A reciprocal upward and downward pedaling bicycle structure includes a main shaft of a free wheel at a chain wheel shaft, a driving body pivotally coupled to a frame of the main shaft, a pedal crank and a support rod on the driving body, and a driving belt linked to the main shaft and the support rod. An end of the driving belt is dragged to the frame by a resilient element. By the action of the resilient element ands the rotation of the main shaft, the crank and pedal are pulled by the driving belt to provide an upward bounce and the chain wheel drives the rear wheel shaft through the main driving belt. When the pedal is stepped downward, the main shaft and the chain wheel are rotated synchronously to drive the rear wheel of the bicycle to move forward.

Abstract: A recumbent bicycle having a single stroke linear type of pedaling wherein both legs protract and retract simultaneously so that a single push is made instead of alternating pushes. Various other adjustements are posssible to accomodate the length of a user legs and the degree of extension desired.

Abstract: Apparatus and methods are disclosed for a human-powered vehicle. The vehicle can be a two-wheel, recumbent-style vehicle. The vehicle can be readily disassembled for ease of transport.

Abstract: Disclosed are systems and methods for converting linear motion into circular motion.

Abstract: A drive system for use in a bicycle or the like, which includes a manually-operable member and a drive train connected to the member for transferring drive from the member to at least one of the bicycle wheels. The member is mounted for substantially rectilinear reciprocating movement on a lever system having a first lever, a second lever and a tie rod. The first lever has a first end connected to a first pivot and a second end that is rotatable about the first pivot. The second lever has a first end that is pivotably connected to the second end of the first lever and a second end to which the manually-operable member is attached. As for the tie rod, it has a first end pivotably connected to the a second pivot and a second end that is pivotably connected to the second lever between the first and second ends thereof. The first lever is constructed and arranged for limited reciprocating rotation of the second end about the first pivot.

Abstract: A scooter includes a body having four pulleys at four corners of the body. A wire reeves through the pulleys. A head tube is connected to the body, and a handlebar stem with a front wheel rotatably extends through the head tube. A rear wheel is connected to the rear part. Two pedals are fixedly connected to the wire, and toothed belts extend through the pedals. Each pedal has two wheel sets. Each wheel set has a shaft on which a one-way bearing is mounted. A gear is connected on the the one-way bearing and is engaged with the toothed belts. Wheels of the wheel sets contact the ground, and the scooter moves by reciprocally shifting the pedals on the toothed belts.

Abstract: A human propelled vehicle, e.g., bicycle, has a propelling mechanism that allows crank arms longer than eight inches. The propelling mechanism includes first and second shafts coupled to first and second crank arms and trained to a gear train, which is trained to a conversion mechanism, which is trained to an output shaft. The crank arms extend rearwardly from their shafts so that the axes of the pedals mounted to the crank arms reciprocate in opposite directions through an arc that passes behind the bottom bracket axle.

Abstract: A system and method for increasing the velocity of an animal on a mechanical device using gravity and natural animal movement. According to a preferred embodiment, there may be a frame; six wheels rotatably attached to the frame; four foot links coupled to four of the six wheels; four foot supports connected to at least one foot link; and a coupling system in rotational communication with at least one foot link to translate the stepping motion of a horse into angular momentum. The coupling system may have at least one gear connected, by a chain, to another at least one smaller sized gear to increase the velocity. Different sized gears may be used to control the speed of the vehicle.

Abstract: A wheelchair is disclosed that comprises a drive system that includes typically two input members carried for oscillatory movement on a frame of the wheelchair. A transmission is system disposed to mechanically interconnect each input member to a respective main ground-engaging wheel of the wheelchair. The transmission system is configured such that oscillatory movement of the input member causes rotational movement of the wheel, thereby enabling a user of the wheelchair to propel it by applying effort to the input member. Independent movement of the two input members can be used to effect steering control of the wheelchair. The wheelchair preferably also has a braking system to resist movement of the main wheels.

Abstract: A drive mechanism for bicycles or similar exercise equipment in which the left and right pedals move generally up and down in a vertical plane. The pedals slide on vertical slide bars from their top to bottom positions. The pedals are connected by a pedal chain that engages and rotates a sprocket. The sprocket is in turn connected through a drive shaft to a pair of drive gears. The drive gears are mounted to the drive shaft by means of one way clutches. A reversing bevel gear is mounted between both drive gears to produce a driving output force that is transmitted to the rear drive wheel regardless of whether the left or right pedal is pushed from its top to bottom position. In an alternate embodiment the drive mechanism is adapted for use on a recumbent bicycle and the pedals move in a horizontal plane.

Abstract: A kinetic energy generating mechanism includes a driven mechanism having a transmission member wound around two driving members that are rotatably connected to two pivotal shafts fixedly connected to a vehicle at predetermined positions, a transmission mechanism having front and rear rotating shafts mounting on the vehicle, and two transmission members separately wound around two pairs of front and rear driving members that are engaged with two unidirectional-rotation control members provided on at least the rear rotating shaft, and two actuating mechanisms fixedly connected to the transmission members of the driven and the transmission mechanisms. By applying a rearward force to slide either of the two actuating mechanisms, two rear wheels of the vehicle connected to two ends of the rear rotating shaft could be rotated forward with largely reduced effort.

Abstract: A self-propelled exercise device such as a bicycle includes a frame having a drive wheel rotatably supported thereupon. The bicycle includes a first and a second foot link which are powered by the user. A coupler assembly directs the first end of each foot link in an arcuate path of travel, and a foot link guide directs the second end of each foot link in a reciprocating path of travel. A power transfer linkage is in mechanical communication with the coupler assembly and with the drive wheel. When the device is in use, a user's foot disposed upon the foot link travels in an elliptical path of travel and provides power to the foot link. This power is transferred to the drive wheel by the power transfer linkage so as to propel the bicycle.

Abstract: A mechanism for a pedaled vehicle such as a bicycle. The drive mechanism includes a first and second pedal connected to a first and second pedal guide. The first and second pedal guide are movably situated in parallel interior tracks. The tops and bottoms of both pedal guides are connected by a first and second chain. The first chain runs over a single first idler gear. The second chain runs over a first free-wheel, a bottom idler gear, and a second free-wheel. The first and second free-wheels convert the linear motion of each pedal and pedal guide into a unidirectional force that is applied to a drive shaft.

Abstract: A cycle having front wheel forks with a front wheel, a steering device connected to the front wheel forks, and rear stays with a rear wheel that has a free-wheeling hub. The cycle of this invention also includes a frame which connects the forks and the stays, a scat that can be fastened to the frame, a rear wheel drive, and foot actuating means for the rear wheel drive. The frame is formed by an individual essentially horizontal rail. The foot actuating devices are displaceably guided in the longitudinal direction of the rail. The foot actuating devices are formed by a foot rest for both feet. The seat can be displaced on the rail in a longitudinal direction of the rail, and the steering device is formed by handlebars between which the rail extends. The handlebars are provided with hand grips.

Abstract: A vertical pedal-operated vehicle can be driven directly by a driver's own weight. To operate such a vehicle, a driver is supposed to apply his/her own weight to the vehicle by treading his/her left and right foot alternately on a pair of pedals such that the rotation torque can be transmitted through a pair of ratchet-typed freewheels with one-way clutch, a driving shaft, then a transmission mechanism to reach at least a rear wheel for driving the vehicle forwards without needing any extra labors, such that a relaxative physical exercise is performable unknowingly. Furthermore, it is possible to make the vertical pedal-operated vehicle compact or foldable for being stuffed and stored in a car's rear baggage compartment for easy delivery.

Abstract: A reciprocating type driving mechanism for use for a bicycle, baby carriage and wheel chair, which can provide convenience in driving to the user and which comprises: a front and rear wheels W1 and W2; a gear box B; a driving and driven gears 20 and 30 and a side gear 31 formed integrally with the driven gear 30; driving members 40 each comprising three links 41, 42 and 43; a pinion 50 adapted for alternate operation of the driving members 40; a head gear 60 in meshed connection with the side gear 31; an intermediate gear 70 positioned below the head gear 60; a relaying gear 81 in meshed connection with the intermediate gear 70; an output gear 82 provided at the bottom part of the driving axle 80 for transmitting the torque; and a hub gear 90 in meshed connection with the output gear 82 (FIG. 1).

Abstract: A system for powering vehicles such as bicycles using leverage type pedals each connected to a freewheeling sprocket and then connected to a common drive shaft in the rear of the vehicle. A keyed shaft connects all free wheeling sprockets and provides for each sprocket to drive the keyed shaft in one rotational direction. A hand powering unit operates through a separate free wheeling sprocket and is also arranged like a lever in similar manner to the pedals. Lowered seating for horizontal movement of legs is preferred arrangement.

Abstract: A wheelchair is disclosed that comprises a drive system that includes typically two input members carried for oscillatory movement on a frame of the wheelchair. A transmission is system disposed to mechanically interconnect each input member to a respective main ground-engaging wheel of the wheelchair. The transmission system is configured such that oscillatory movement of the input member causes rotational movement of the wheel, thereby enabling a user of the wheelchair to propel it by applying effort to the input member. Independent movement of the two input members can be used to effect steering control of the wheelchair. The wheelchair preferably also has a braking system to resist movement of the main wheels.

Abstract: A folding tricycle, maximizing the exercise effect by allowing a user to pedal the tricycle while standing up on the pedals, as well as being easy to move and carry by being folded to be of a small size, is disclosed. The folding tricycle has a running unit consisting of a main frame, two front wheels, and a rear wheel. The main frame consists of two frame parts with a first folding part joining the two frame parts together, thus being foldable at the folding part. The two frame parts respectively have a front wheel shaft housing and a rear wheel support assembly. The tricycle also has steering unit used for steering the rear wheel. The steering unit has a second folding part, thus being foldable at the second folding part. The tricycle also has a brake unit used for selectively braking the front wheels.

Abstract: The present invention discloses an apparatus for propelling the wheelchair that prevents a backward movement and helps the occupant rotate the wheel with less manual torque. The invention makes it possible for the disabled person to climb the sloped road with less manual force and without fear of dangerous backward slide.

Abstract: A bicycle drive mechanism which allows desynchronized pedaling. Pedals connected to shuttles are mounted in rail guides for generally linear movement. The pedals are elastically connected to each other which allows each pedal to move independently of each other for at least two inches of desynchronized motion. A drive element is mounted around two approximately equally size sprockets. Pushing each pedal either pushes or pulls the drive element around the sprocket. The rotation of the sprockets drives a standard bicycle gear sprocket and chain mechanism to power the rear wheel of a bicycle.

Abstract: A bicycle for providing stair-stepping exercise motion, recreation, and mode of transport comprising a frame that includes a unique triangular rear portion, a pair of wheels, one for the front, one for the back, a chain driven, teardrop-shaped propulsion system, left and right pedals having multiple positions between a horizontal and angular vertical upon which the operator rides, adjustable handle bars for steering, and a safety housing for covering the propulsion and wheel sprockets, chain, braking mechanism, and bike stand.

Abstract: A self propelled scooter that has a pair of wheels that ride on the ground and a frame having a footboard mounted between the wheels. The rear wheel has a shiftable axle, that is, the axle that rotatably affixes the rear wheel to the frame can be moved between a location that is at the center of the rear wheel where the user can readily coast the scooter and a location offset with respect to the center of the wheel where that offset location allows the user to employ a pumping action and use the weight of the user on the footboard to propel the scooter forwardly. A mechanism operable by the user allows the user to selectively move the rear axle between the two locations so that the user can pump the scooter to gain speed when the axle is in the offset location and then shift the axle back to the center location to dissipate that speed by allowing the scooter to coast.

Abstract: A front wheel of a scooter is pivotally mounted to a frame and includes an upwardly extending shaft supporting a handlebar for steering the scooter. A footpad or peg, mounted on a spring returned lever, is interconnected with the rear wheel through a gear mechanism supported by the frame. By pumping the footpad or peg, rotation of the rear wheel and forward motion of the scooter occurs.

Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A crank lever is connected between a sprocket and the one of pedal levers. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved, not fixed, in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. With such an arrangement, a configuration of the rotating force transmitting mechanism for the rear wheel is simplified. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth rotation of the pedal is assured.

Abstract: The present invention relates to a reciprocating type driving mechanism for use for a bicycle, baby carriage and wheel chair, which can provide convenience in driving to the user and which comprises: a front and rear wheels W1 and W2 provided in the front and rear parts of a car body 10; a gear box B provided on the head pipe 11 of the car body 10; a driving and driven gears 20 and 30 in meshed engagement and a side gear 31 formed integrally with the driven gear 30, those gears being built in the gear box B; driving members 40 each comprising three links 41, 42 and 43 for rotating the driving gear 20 only in the advancing direction through unidirectional clutches C1, the driving members being provided on the both sides of the car body 10; a pinion 50 in meshed connection with the racks 42a formed on the second links 42 and adapted for alternate operation of the driving members 40; a head gear 60 in meshed connection with the side gear 31 and provided on a lower part of the head pipe 11 through a bearing 61; a

Abstract: A man-powered vehicle comprises a frame, a front wheel set mounted on the frame, a rear wheel set mounted on the frame, at least one slide board, and a drive mechanism linking the slide board and the rear wheel set such that the rear wheel set is driven to turn at the time when the slide board slides back and forth on the frame.

Abstract: A propelling scooter includes a chassis, a front wheel steerably attached to a front end of the chassis, a rear wheel rotatably attached to a rear end of the chassis and an elongated pedal disposed longitudinally above the chassis. The pedal has a backward end and a forward end. The pedal is pivotally connected to the chassis between the ends thereof and is adapted to sway relative to the chassis. A first shaft laterally extends through and is rotatably supported on the chassis. The scooter further includes a driving pulley securely mounted around the first shaft, a driven pulley securely attached to a center of the rear wheel, and a primary flexible drive piece reeved around the driving pulley and the driven pulley to transmit rotation from the first shaft to the rear wheel such that the scooter may move forward when the first shaft is rotated relative to the chassis in a correct direction.

Abstract: A rectilinear propulsion apparatus for propelling a bicycle. The rectilinear propulsion apparatus includes a rectilinear drive portion comprising a plurality of rack gear assemblies fixedly coupled to the sides of the middle frame portion of the bicycle, each of which have a pedal for biasing the rack gear assemblies by the rider. A quadrant drive portion comprising a plurality of quadrant sprocket members fixedly coupled to a main drive gear member which drives a drive wheel of the bicycle. The sprocket members are designed for alternately engaging the rack gear assemblies thereby propelling the bicycle. A clutch member coupled to the main drive gear member permits one of the rack gear assemblies to ratchet upwardly while the opposing gear assembly is being manually biased downwardly by the rider thereby allowing the rider to reciprocately propel the bicycle.

Abstract: A gravity tricycle is driven by a power-saving drive device.

Abstract: A wheelchair including three component parts: a propulsion means, a support means provided with means for receiving the legs of a chair, and a chair. The propulsion means is removably engaged with the support means by sliding the propulsion means into the support means. The propulsion means includes a ratchet and sprocket means. The occupant propels the wheelchair forward and backward by moving a handle attached to the ratchet in a rowing type motion. A chair is then engaged with the support means by inserting the chair legs into the means for receiving the chair legs on the support. The means located on the support for receiving chair legs can be varied to accommodate a variety of chair types.

Abstract: A bicycle transmission assembly comprises a gear shifting device and a reciprocating pedal device that are mounted to a bicycle frame. The reciprocating pedal device comprises a reverse gear train consisting of a first reverse gear and a second reverse gear to make two pedal rods move horizontally and reciprocatingly. Swaying movements of the pedal rods drive a single direction gear mechanism. The gear shifting device comprises a first idler gear and a second idler gear that are meshed with each other. A follower gear and the first idler gear are coaxially mounted with each other. The follower gear is connected to a single direction gear of the reciprocating pedal device via a transmission element. Pivotal movements of a gear shifting lever cause rotational movements of the carrier member such that the first idler gear or the second idler gear is meshed with a transmission gear to thereby drive the wheels of the bicycle.

Abstract: A human propulsion vehicle with at least two wheels (3, 5) comprising a first frame (1), handlebars (4) rotatably mounted onto the first frame (1) and connected to at least one wheel (3), a second frame (8) integrally connected to the first frame (1) at the front portion thereof and above said handlebars (4), and a seat (6) and a seat back (7) for the person is provided, the vehicle being characterized in that it further comprises a pair of cranks (10) for driving the propulsion energy with a swinging reciprocating motion around an axis of rotation (100), and a crown (9) connected thereto apted to convert the swinging reciprocating motion of the cranks (10) in a one-way rotary motion around said axis of rotation (100) and the seat back (7) being apt to provide a thrust reaction member for the person when forcing on the cranks (10).

Abstract: Energy storing bicycle comprises: a fluid reservoir accommodating a fluid having a predetermined viscosity compressible for storing pressure energy, to which at least one supply pipe and at least one return pipe are connected; at least one pressure pump whose inlet being connected to the supply pipe, after being compressed, the fluid in the pump is pressurized to a certain pressure and deliver the high pressure fluid out of the exit of the pump; pressure reserving cylinders with the same units as that of the pressure pumps each with an inlet connected to the pressure pipe; the cylinder being able to reserve pressurized fluid with an exit connected to a transmission pipe and having a gate valve so as to control the high pressure fluid to be able to continuously output therefrom for a long time; fluid turbines with the same units as that of the pressure reserving cylinders each with an inlet connected to the transmission pipe, and having a turbine rotor driven by highly pressurized fluid, an exit thereof being

Abstract: A scooter having a rider-operated mechanism for driving the scooter forward includes an endless chain loop for transferring propulsion to one wheel of the scooter. In one aspect, a first sprocket wheel is mounted in a vertical plane below the footboard, and a drive link extends from a pedal to an eccentric mounting pin on the sprocket wheel. A second sprocket wheel assembly, including a ratchet gear, is mounted on the shaft that supports the driving wheel, and an endless loop chain extends about the two sprocket wheels below the footboard. When the pedal is depressed, the link rotates the first sprocket wheel and the chain, driving the second sprocket wheel to rotate the drive wheel and propel the scooter. In another embodiment, a first gear wheel is mounted in a vertical plane below the footboard, and a second gear is mounted coaxially with the first sprocket wheel. and disposed to engage the first gear. A drive link extends from the pedal to an eccentric mounting pin on the first gear wheel.

Abstract: A pedaled propulsion system has left and right foot pedals that travel up and down on roller slides on track members mounted on the bicycle frame. An endless drive web passes between the pedals and loops around a driven wheel at one end of the track assembly, and around an idler at the other end of the track assembly. The driven wheel is mounted on the input shaft of a unidirectional transfer arrangement. The transfer arrangement has an aluminum block case or housing, and an input shaft which has a bevel pinion gear on it that meshes with left and right driven bevel gears. These bevel gears each are mounted to an output shaft by means of unidirectional clutch bearings inside the bevel gears. Each bevel gear drives in one direction and idles in the other direction. As the input shaft oscillates back and forth, the output shaft continues to rotate in the same direction. A sprocket wheel can be mounted on the output shaft to power a chain drive or a shaft drive.

Abstract: A wheelchair is provided with a helical drive mechanism. A rectilinear input to the helical drive causes an output gear to rotate, thus providing power to rotate the driving wheels of a wheelchair. The helical drive may include, for example, a compound helix, a drive with a twisted flat bar, or a concentric helix drive. Add-on components may be provided to convert a conventional wheelchair to a wheelchair powered by a helical drive mechanism.

Abstract: A pedal arm as a lever member is supported at its fulcrum by a roller, which is held for movement in a guide groove. A crank pin in an eccentric position on a gear is coupled to the point of action of the pedal arm, whereby the rotation of the gear is transmitted to a rear wheel.

Abstract: A bicycle with a drive mechanism using reciprocal rectilinear pedal motion to propel a pinion gear against a crown gear face associated with a rear bicycle wheel, rotating the rear wheel. The pinion gear receives motion from a helical member surrounded by a slider. Each pedal is united with the slider which moves linearly along a guide or track, forcing rotation of the helical member as the slider is pushed rearwardly by a pedal. A freewheel or overrunning clutch permits power transfer only when the pedal moves rearwardly and allows freewheeling when the pedal is reset. Reciprocal, linear pedal strokes power the bicycle.

Abstract: A man-propelled vehicle includes a frame with a seat, two pedals, and two hand-operated handles, each linked with the frame by actuating devices capable of communicating to them an alternating translational motion. The actuating devices are coupled with unidirectional rotary transmission devices on a drive shaft by links adapted to drive in rotation the rotary transmission device when the pedals and operating handles are actuated.

Abstract: Manually powered propulsion apparatus includes two pedals mounted on an endless flexible member. Depression of either pedal will cause the other to move to a raised or retracted position. Two crank members are connected to the drive wheel of the cycle incorporating the propulsion apparatus and two additional endless flexible members are connected to the crank members. A one-way clutch mechanism interconnecting the pedals and the two flexible members connected to the crank members will cause rotation of the crank members when a pedal is depressed.

Abstract: Manually-powered propulsion apparatus for propelling a cycle includes two pedals and two rotatable crank members connected to the drive wheel of the cycle. Two flexible cables are connected to the crank members, one of the cables transmitting power from the pedals to the crank members and the other cable causing retraction of a pedal when the cyclist is applying force to the other pedal.

Abstract: Manually powered propulsion apparatus for propelling a cycle includes two pedals which move along parallel linear tracks. A flexible member forming an endless loop is connected to the two pedals to raise a pedal when the other is depressed by a cyclist. In addition, each pedal is connected to an endless flexible member extending around one of a pair of rotatable crank member. Rotation of the crank members results in a propelling force being applied to a wheel of the cycle.

Abstract: Manually powered propulsion apparatus for a cycle includes first and second pedals interconnected by an endless elongated flexible member. Drive elements are affixed to the flexible member which engage drive elements on two crank members employed to apply torque to the drive wheel of the cycle. The crank members rotate during rotation of the flexible member.

Abstract: Manually powered propulsion apparatus includes a pedal and a rotatable member. A flexible transmission member is connected to the pedal and to the rotating member and includes pivotally interconnected link members. The link members are linearly disposed when the pedal is extended and cooperate to form a curved, self-supporting structure between the rotatable member and the pedal when the pedal is retracted.

Abstract: A tricycle includes a base plate, and two pedals and a brake pedal arranged near the rear end of the base plate. The pedals are each connected to a rack rod. The base plate has two lugs at both sides, and a rotary shaft is pivotally mounted at the lugs. The rotary shaft includes a friction roller in the middle and two ratchet wheels near both ends thereof. Compression springs are disposed between the base plate and the three pedals. By pressing the two pedals, the ratchet wheels on the rotary shaft will rotate to cause two large wheels mounted at both ends of the rotary shaft to move forward. The ratchet rods are reset by the springs to get ready for the next action. The brake pedal includes a brake lever at a lower end thereof. When the brake lever displaces downwardly, the friction roller will be pressed to stop rotation of the rotary shaft. A wheel mounting frame is disposed near a front end of the base plate for mounting a small wheel.

Abstract: The present invention provides a human powered velocipede drive providing rotary output. The velocipede drive is mounted on a bicycle to provide rotational movement to a front drive wheel of the bicycle thereby propelling the bicycle over the ground. The velocipede drive comprises a seat mounted on the bicycle, a slider guide mounted on the hub of the front wheel, a slider mounted on the slider guide for movement thereover, foot pedals fixed on the slider, a rotatably mounted driven member mounted on the hub of the drive wheel, an elongate flexible drive member for imparting forward rotational movement to the driven member when moved from a retracted position to an extended position, and biasing means for biasing the elongate flexible member in the retracted position.