Abstract: A rack driven human powered vehicle utilizes a rack and pinion system to provide a more efficient method of propulsion. The rack and pinion system may take the linear momentum of at least one driving rack and may transfer it to rotational momentum for at least one freewheel sprocket which may turn the wheel providing momentum for the vehicle.

Abstract: The present disclosure features standing electric vehicles for golf course travel that include a skateboard-like deck. The vehicles disclosed herein, referred to as “golf boards,” include features that enhance the safety and ease of use of the vehicle, including power-off electromagnetic braking systems.

Abstract: Phase gear and lever mechanism converts reciprocating power to rotary power with phase gear providing power stroke of greater duration than travel stroke so as to develop efficient power through a power stroke. A modified lever and gear mechanism converts reciprocating power to rotary power at variable out power ratio. In addition, an alternative embodiment of the variable lever is for use with the phase gear is provided.

Abstract: A human-propulsion-system utilizing an arm lever assembly and a pedal assembly to be adapted to or incorporated into other mechanisms including, but not limited to, wheelchairs and vehicles. The arm lever assembly is reciprocated to provide power and rotated left or right to provide a movement for (steering) control. Both the arm lever assembly and the pedal assembly are operatively connected to a converter, utilizing gears and clutches, that receives the reciprocal movements of the arm lever assembly and the rotational movements of the pedal assembly and converts them into a combined unidirectional output configured to be utilized in combination or independently. The arm lever assembly is further telescoping and offers a range of various leverages by changing the length of the force end when extended and retracted.

Abstract: Embodiments described herein are configured to receive forces generated by a user moving their appendages, and convert the force into mechanical force and/or energy. More specifically, embodiments may convert axial and/or tangential force into rotational force. The rotational force may be utilized to power devices, drivetrains, vehicles, such as bicycles, tricycles, kayaks, boats, etc.

Abstract: A standard-sized bicycle includes a main frame, a rear drive wheel and a rowing mechanism. The rowing mechanism is coupled to the steering column 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 extend from the second end of the power lever and provide foot rests for additional force. Each of the pair of drive levers is in mechanical communication with the rear drive wheel such that a forward oscillation of the rowing mechanism will drive the rear drive wheel in a same direction of rotation to propel the bicycle forward.

Abstract: A vehicle powered by an operator's arms and/or legs utilizes a pivot column for propulsion. An upper propulsion member (handlebar) is provided on the upper end of the pivot column. A lower propulsion member (foot bar) is provided on the lower end of the pivot column. A drive propulsion system is provided between the pivot column bottom and a rotational drive gear set. The drive propulsion system engaged with said at least one rotational drive gear, the propulsion system engages with and provides propulsion to an upper portion of the rotational drive gear during a counterclockwise motion of the pivot column and engages with and provides propulsion to a lower portion of the rotational drive gear during a clockwise motion of the pivot column. The rotational drive gear spins freely when subjected to the reverse motion. Incorporating two gears with opposing propulsion drives provides forward motion throughout the entire reciprocating stroke of the pivot column.

Abstract: A skateboard having extra sets of gears compared to a regular skateboard and also has a lower support platform is provided. When an individual jumps on the skateboard, the support platform and extra gears cause the skateboard to automatically travel forward due to the interaction between the support platform, the extra gears, and the existing wheels on the skateboard.

Abstract: A multi-speed system configured to increase the speed or decrease the pedaling effort of a lever propelled bicycle. The multi-speed system is composed of a manual control device 70, mounted on the frame close to the rider's hand placement on the handle bars, and other connected components configured to change wheel rotation per pedal. It has the ability to transfer manual force to the transmission means to change propulsion speed and effort. Depressing a control lever 2 down will allow the rider to increase in speed and lifting the control lever 2 up would allow the rider to decrease pedaling effort.

Abstract: A vehicle powered by an operator's arms and/or legs utilizes a pivot column for propulsion. An upper propulsion member (handlebar) is provided on the upper end of the pivot column. A lower propulsion member (foot bar) is provided on the lower end of the pivot column. A drive propulsion system is provided between the pivot column bottom and a rotational drive gear set. The drive propulsion system engaged with said at least one rotational drive gear, the propulsion system engages with and provides propulsion to an upper portion of the rotational drive gear during a counterclockwise motion of the pivot column and engages with and provides propulsion to a lower portion of the rotational drive gear during a clockwise motion of the pivot column. The rotational drive gear spins freely when subjected to the reverse motion. Incorporating two gears with opposing propulsion drives provides forward motion throughout the entire reciprocating stroke of the pivot column.

Abstract: A remotely programmable device includes a message store for receiving messages over a radiolink from a controller and forwarding the messages to a local application resident in the device, writable registers for controlling operation of the device, a command interpreter for interpreting commands embedded in thessages to write data to the register, and a lock for inhibiting writing of data to the registers. The local application is responsive to an authorization code embedded in the messages to release the lock and thereby allow writing of data to the registers.

Abstract: The invention relates to a scooter with a frame, at least one front wheel (12), at least one rear wheel (11) and with a steering gear (3, 6, 7), with which at least one front wheel (12) is tractable, whereby the scooter comprises on the left and/or the right side of the axis connecting the front and rear wheels, respectively, (longitudinal axis of the scooter) between the centre of a front wheel (12) and the rear end of a rear wheel (11) one laterally fold-out foot rest unit (1), which cannot exert the function of a crank, i.e., which cannot be rotated by 360° around a transverse axis of the frame which is perpendicular to the longitudinal axis of the scooter, whereby the foot rest unit(s) (1) can be folded out mechanically or by means of a motor and whereby upon mechanically folding out by force effect by the driver the foot rest unit (1) returns in its initial position upon discontinuation of the force.

Abstract: The present invention relates to the drive assembly coupled with the pedal thereon the frame, and the transmission assemblies rotated by the drive assembly. Thereby to step on the pedal repeatedly rotates the transmission assemblies to make the wheel rotate in single direction. Therefore, the invention can first enhance the operating stability and then get the exercise effect while the user kicks the ground to propel the pedal scooter and steps on the pedal repeatedly.

Abstract: A portable robotic system having a folding carriage is disclosed. The carriage in one embodiment includes two legs and a lateral stabilizer. The folding legs and stabilizer allow the carriage to be maneuvered into a plurality of open and closed positions. In the open positions, the legs and stabilizer are spaced apart to support the robotic system during operation. In the closed positions, the legs and stabilizer and substantially parallel to one another. In one closed position with one leg or stabilizer extended to within reach of a person, the carriage may be rolled like a dolly. In another closed position with one leg or stabilizer collapsed against the carriage, the carriage may be carried like a suitcase. Methods of folding and transporting a robotic system and carriage are also disclosed.

Abstract: A multi-speed system configured to increase the speed or decrease the pedaling effort of a lever propelled bicycle. The multi-speed system is composed of a manual control device 70 mounted on the frame close to the riders hand placement on the handle bars and other connected components configured to change wheel rotation per pedal. It has the ability to transfer manual force to the transmission means to change propulsion speed and effort. Depressing its control lever 2 down will allow the rider to increase in speed and lifting its control lever 2 up would allow the rider to decrease pedaling effort.

Abstract: This invention relates to a cycle, such as a bicycle, having reciprocal pedal levers for propelling at least one wheel of the cycle. The cycle has a frame that includes a rack, a left pedal lever with a rack and a right pedal lever with a rack. A pinion is carried on the frame with the pinion in simultaneous engagement with the racks on the frame and the pedal levers. A plurality of bearings are mounted around the pinion comprising at least a first bearing providing rotation between the pinion and the frame, a second bearing providing rotation between the pinion and the right pedal lever, and a third bearing providing rotation between the pinion and the left pedal lever.

Abstract: A mechanized scooter includes a frame, having a front wheel and at least one rear wheel rotatably attached thereto. A pair of steps are rotatably mounted in the frame and linked to a drive train to drive the at least one rear wheel. The drive train may include a number of gears and a drive element connected to a rack, or drive chains and sprockets secured to the at least one rear wheel.

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 rolling foot-powered apparatus mounted for movement on rotatable rollers and including at least one upper movable assembly, a lower stationary assembly, and at least one motion-conversion mechanism or an alternatively retractable motion-conversion mechanism. The movable assembly, which is provided with mounted means for movement therewith, and the lower stationary assembly, are cooperatively associated one with another and with the assistance of the motion conversion mechanism or alternatively retractable motion-conversion mechanism are operative such that an oscillating motion of the movable assembly or alternatively a linear motion of the movable assembly is converted either to a continuous circular motion of the rotatable shaft or alternatively to the rotatable rollers for the purpose of imparting a continuous linear motion of the rolling foot-powered apparatus.

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: An exercising cart structure. The structure includes a cart body, a front wheel steering unit, a driving wheel unit, a chain and a rear wheel unit. The front wheel steering unit is installed on a front section of the cart body. The driving wheel unit is installed on a middle section of the cart body. The rear wheel unit is mounted on a rear section of the cart body. The rear wheel unit via the chain is drivingly connected to the driving wheel unit. The driving sprocket of the driving wheel unit and the transmissions gears are mounted on the main and subsidiary supporting racks of the cart body. The chain is connected between the driving sprocket and the driven sprocket of the rear wheel unit.

Abstract: A treadle-type vehicle body forward drive structure comprised of a base plate, a transmission assembly and a treadle structure installed onto the base plate, a gear assembly enmeshing the transmission assembly to the treadle structure, and a position limiting plate that maintains the position of the drive structure on the base plate, with the extending ends of the transmission assembly follower shaft installed to the wheel hubs of the vehicle body rear wheels. When the treadle rod is tamped slightly downwards, a slant-cut fan gear of the treadle structure causes a slant-cut gear and a straight-cut gear of the gear assembly to synchronously rotate, at which time since the straight-cut gear of the gear assembly is enmeshed with a straight-cut gear of the transmission assembly, they in combination cause the rotation of the follower shaft and, furthermore, the synchronous rotation of the rear wheels. As such, the user is provided riding pleasure and options.

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: A motion transfer mechanism for transferring reciprocal motion to rotary motion comprises at least one driving member having front and rear end portions terminating, respectively, in front and rear ends and mounted to undergo reciprocal motion about a first axis located closer to the rear end than the front end of the driving member. At least one rotary member is mounted to undergo angular displacement about a second axis. An interconnecting member connects the driving member to the rotary member, such that reciprocal motion of the driving member effects angular displacement of the rotary member about the second axis. At least one driven member is mounted to undergo rotary motion in one direction of rotation about the second axis. A transfer device drivingly connects the rotary member to the driven member for transferring angular displacement of the rotary member to rotary motion of the driven member in the one direction of rotation.

Abstract: A balance-shifted personal carriage (19) designed for physically challenged persons such as paraplegics confined to wheelchairs. The carriage (19) basically consists of a base frame assembly (13) that supports a seating assembly (15) a pair of free pivoting wheels (18) located in the front, a pair of steerable wheels (20) controlled by the rider and located in the back, and a centrally located power wheel (22) that is controlled by the rider. The balanced-shifted carriage (19) is operated in either of two modes of operation: in Mode 1, the rider shifts their weight backwards to allow the steerable wheels to contact the floor at which time the power wheel (2) is made to rotate to propel the carriage; in Mode 2, the rider shifts their weight forward to cause the steerable wheels (20)to rise and allow the pivoting wheels (12) to contact the floor allowing the rider to pivot and move the carriage away from an obstacle.

Abstract: A two-wheeled vehicle comprising a frame having two wheels suspended rotatably therein, whereof the one is driven and the other is steerable relative to the frame via a subframe, wherein the frame bears a saddle-like seat element in addition to a rotatable steering member, wherein the subframe for the steerable wheel is situated under the seat element and the driven wheel under the steering member and wherein a coupling mechanism is arranged between the steering member and the sub-frame, whereby due to the reversal of the wheel function it is possible to directly drive the front wheel whereby the distance between both wheels can be considerably reduced, and therewith the length of the bicycle, while preserving a comparatively large wheel diameter.

Abstract: A drive mechanism for a pedalled vehicle employs foot levers mounted on the vehicle frame, a rotary drive mechanism, and one way rotary members. A chain or toothed rack can engage the rotary members to provide reciprocal oscillatory motion, which is then converted to one-way rotary motion. A synchronizing mechanism ensures that motion of each lever produces corresponding motion in the opposite direction by the other lever.

Abstract: A skateboard is provided with a low profile and a simplified mechanism for driving the same without interfering with skateboard steering. A narrow drive belt is entrained about a centrally located pulley integrally mounted on a shaft carrying forward wheels including an overrunning clutch mechanism. A pedal mounted on the front of the board drives a horizontally displaceable rack via an intermediate cam member which provides a variable velocity. The rack in turn drives pinions operative for winding the drive belt around a pulley against spring tension applied at the remote end of the belt. The belt may also be entrained about a rear wheel pulley for empowering the rear wheels of the board.

Abstract: A footboard of a skateboard is with respect to a respective reference plane which at riding straight (=x plane) is parallel to the riding path (=the ground), and at turning (=x" plane) is with respect to the direction of riding slanted to one or the other side, is rhythmically swung around a longitudinal axis (O) of swinging lying in suspensions (4, 5) of the skateboard. The amplitude (A) and the frequency of swinging are mutually coordinated in a manner that swinging does not result in such meandering of the skateboard, which was felt inconvenient.To a socket shaft housing (8) of a suspension (4, 5) of the skateboard, said housing encasing a roller shaft (11), there is to each end thereof attached a gearing (9, 10), the gearings designed mirror-symmetrically.

Abstract: Disclosed is a wheelchair having a pair of levers along its opposite sides connected with sprockets on drive wheels. In one form, each lever is connected to its sprocket by a rack. The drive wheels have a clutch enabling the power stroke of the lever to drive the wheels through the rack-and-pinion engagement, yet permitting the sprocket to rotate in the reverse direction freely upon the return stroke of the lever. The rack includes an arcuate extent void of teeth to enable disengagement of the drive connection between the lever and sprocket whereby the wheels may move freely in either direction. In another form, a chain interconnects the lever and a return spring connected to the wheelchair frame. The chain has an extent void of pins to enable disengagement of the drive connection between the lever and sprocket, whereby the sprocket and, hence, drive wheel are free to rotate in either direction. A speed change mechanism is employed to vary the torque applied to the sprocket by the lever.

Abstract: A drive mechanism for a human-powered vehicle is disclosed. The vehicle has a frame, plural wheels and linear motion generating mechanism, which is operable by a human being, for generating substantially linear, oscillating motion. A motion converting device is provided for converting the oscillating motion into rotary motion. A mechanism for transmitting the rotary motion to the driving wheels is provided.

Abstract: For a vehicle such as a bicycle having a frame and at least one drive wheel, a driving sprocket, and an endless chain connecting the sprocket to the drive wheel, an improved propelling mechanism having two longer than usual pedal arms pivotally mounted on either side of the frame for swinging movement over an arc of less than 180.degree., and a slip-clutch between each pedal arm and the driving sprocket. The mechanism is such as to positively raise one pedal arm as the other is depressed. Preferably, first and second arcuate toothed members are secured to the respective pedal arms, and a first gear meshes with the first toothed member. The first gear is fixedly mounted to a transverse rotary shaft on which is also fixedly mounted a second gear. The second gear meshes with a third gear which in turn meshes with the second toothed member.

Abstract: A foot-powered wheeled vehicle provides a frame having a platform normally occupied by a user. A pair of spaced apart front and rear trucks each supports a pinion geared shaft and a pair of wheels affixed to opposite ends of the shaft and rotatably with respect to the platform. A pair of independently actuable front and rear foot pedals hingedly are connected to the frame, each of the pedals being movable as desired by the operator between upper relaxed and lower depressed positions with each of the pedals being capable of imparting rotational energy to the wheels associated with its truck. Return springs are associated with each of the pedals for independently biasing each of the pedals toward the upper position which is overcome only by depression by the foot of the operator. Each pedal provides a curved toothed gear rack which is connected at its uppermost end portion to the pedal and which drivingly engages the pinion gear portion of the shaft responsive to depression of the pedal.

Abstract: A scooter vehicle has a chassis, and a front wheel mounted on the center line of the chassis, a rear wheel mounted on the chassis, and a steering column attached to the front wheel. A pair of ratchet gears are connected one to each of the rear wheels. A platform is rotatively mounted on the chassis. The platform has front and rear foot portions mounted with an angle of less than 180.degree. between them. First chain means connects the front of the platform for driving one of the ratchet drive wheel gears and second chain means connects the rear of the platform for driving the other of the ratchet drive wheel gears.

Abstract: A pedal car having a body with a seat and a steering wheel and rear wheels supported on an axle. Ring gear sectors are supported on the car and connected to two pedals which the rider can oscillate. Two spaced pinions on the axle engage the ring gear at diametrically opposite parts and two one-way clutches connect the axle to the pinions so that the ring gear drives the axle forward when it is oscillated in one direction by pedals and drives the axle forward again. When the ring gear is oscillated in the opposite direction by the other pedal, the axle is rotated again in the same direction.

Abstract: Bicycle provided with two drive levers which each carry a pedal at one end and which, by means of a pivot, are connected pivotally about a pivot axis transversely to the riding direction to the bicycle, synchronization coupling means operative between the two levers to force same to execute their pivoting movements synchronously and in opposite rotation sense, there being disposed between each lever and the rear wheel of the bicycle a one-directional coupling for coupling the levers upon their downward pivotal movement for forward bicycle drive with the rear wheel, wherein coupling means, through coacting portions such as enmeshing teeth, couple the levers for the bicycle drive and/or for the synchronous pivotal movement in opposite sense of rotation.

Abstract: Additional propelling power for a bicycle is provided by mounting the bicycle seat to reciprocate in an up and down direction and converting this motion into rotary motion by a ratchet gear. Rotation of this ratchet gear takes place when the seat moves down under the weight of the bicycle rider, a compression spring returning the seat to its up position when the rider lifts his weight from the seat. The motion of the ratchet gear is imparted to the rear wheel of the bicycle through a gear train which amplifies the rotary motion and further which may be provided with a gear shift mechanism for varying the number of rear wheel rotations imparted for one down stroke of the bicycle seat. The auxiliary seat drive is provided in addition to the conventional pedal drive sprocket and chain arrangement normally provided on bicycles.