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7621547 |
Occupant-pedaled drive mechanism for scooter
A scooter propulsion mechanism includes a pedal secured to the upper surface of the platform and a rigid link pivotally connected from the pedal to the mechanism components mounted on the bottom...
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7600771 |
Continuously variable drivetrain
Drivetrains and frames for vehicles, equipment, machines, etc. Some embodiments of the drivetrains and frames are particularly suited for human powered machines, such as bicycles and exercise...
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7581742 |
Pedal scooter
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...
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7497453 |
Reciprocal upward and downward pedaling bicycle structure
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...
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7048290 |
Recumbent cycle with a single stroke linear pedaling system
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...
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7048289 |
Human-powered vehicle
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.
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7011376 |
Systems and methods for propelling a vehicle
Disclosed are systems and methods for converting linear motion into circular motion.
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6964424 |
Drive system
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...
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6840524 |
Scooter having reciprocating pedals
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...
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6779807 |
Human powered vehicle and propelling mechanism thereof
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...
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6746034 |
Wheelchair
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...
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6723029 |
Pedal mechanism for cycles
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...
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6698779 |
Kinetic energy generating mechanism
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...
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6663127 |
Self-propelled exercise device
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...
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6609724 |
Human-powered cycle which is ridden while lying down
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...
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6588784 |
Vertical pedal-operated vehicle
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...
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6578861 |
Reciprocating type driving mechanism
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 W 1 ...
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6554309 |
Bicycle pedaling power unit with leverage shifting
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...
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6520525 |
Folding tricycle
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...
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6485041 |
Step-cycle for exercise, recreation, and transport
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...
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6454287 |
Bicycle
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...
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6419251 |
Propelling scooter
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...
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6412802 |
Rectilinear propulsion apparatus
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...
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6402173 |
Gravity tricycle
A gravity tricycle is driven by a power-saving drive device. The drive device includes first and second pedals, which have drive rods respectively connected to bottom edges thereof, front ends of...
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6382043 |
Transmission assembly for a bicycle having forward/back gear
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...
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6336646 |
Human powered vehicle with at least two wheels
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 ),...
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6315313 |
Energy storing bicycle
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...
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6270102 |
Drive mechanism for scooter
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...
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6237928 |
Pedaled propulsion system
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...
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6213487 |
Helical drive wheelchair
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....
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6209900 |
Cycle provided with a moving fulcrum type leverage
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...
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6199884 |
Helical drive bicycle
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...
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6155584 |
Man-propelled vehicle, such as in particular a cycle
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...
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6129646 |
Apparatus for propelling a cycle
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...
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6123635 |
Propulsion apparatus for a cycle
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...
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6123636 |
Propulsion apparatus
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...
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6090002 |
Manually powered propulsion apparatus
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...
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6079724 |
Tricycle
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...
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6007083 |
Velocipede drive
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...
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6000707 |
Linear driving apparatus
An apparatus for linearly driving a vehicle or machine. The apparatus includes a frame, at least one drive wheel, and at least one rotatable driver comprising a pulley or a sprocket, rotatably...
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5984335 |
Crank assembly for an electrical bicycle
A crank assembly for an electrical bicycle includes a crank axle with two uni-directional bearings respectively and securely mounted to two ends thereof, each one of the uni-directional bearings...
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5979922 |
Bicycle having novel drive and steering mechanisms
A bicycle includes a frame having front and rear sections. The frame includes a pair of guides that are disposed in a parallel relationship and carry a portion of the load generated by a seated...
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5918894 |
Pedal mechanism for cycle and exercise equipment
A bicycle mechanism to permit a forward force to be applied to the bicycle's drive wheel by backward rotation of the bicycle's pedals in addition to permitting a forward force to be applied to the...
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5915710 |
Human powered vehicle
A human powered vehicle comprises a frame supporting a rider in a substantially horizontal position, a driven wheel rotatably mounted on the frame, a drive gear for driving the driven wheel, left...
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5895065 |
Method and means of enhancing human powered locomotion
This invention concerns enhancing human powered locomotion by converting the forces exerted across the pelvis into wheeled propulsion. The invention may be practiced by a two-wheeled vehicle...
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5884927 |
2-way bicycle drive unit
In a first form, a drive sprocket is driven constantly in a forward direction. It is mounted on a central main shaft. A pair of mutually opposed one-way clutches each have a driving part on the...
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5876053 |
Conveyer drive system
A pedal drive system imparts a rotational force, in part, through linear travel of the pedal. The system comprises parallel, dislocated first and second rotating shafts. A first left sprocket and a...
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5765441 |
Mechanism for translating between reciprocating and rotational movement
A motion translation machine for converting reciprocating movement to rotational movement includes a frame that has drive pulleys, a drive belt connected to the drive pulleys, at least two...
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5765847 |
Pedal mechanism for cycle and exercise equipment
A bicycle mechanism to permit a forward force to be applied to the bicycle's drive wheel by backward rotation of the bicycle's pedals in addition to permitting a forward force to be applied to the...
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5762350 |
Hand operated wheel chair or exercise machine using racks operated by variable length lever
This improvement is for a hand operated wheel chair or exercise machine. The machine uses two racks to operate two one way clutches to furnish forward motion from both the forward and backward...
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