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Document Title |
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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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7413206 |
Extra hand powered bicycle
A drive system for use with a bicycle includes first and second gears arranged so that the second gear is rotatably driven responsive to the first gear. A freewheel is operatively coupled to the...
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7293789 |
Wide power range bicycle with positive intuitive gear shifting system
A pedal lever type bicycle includes a pedal lever having a front portion and a rear portion, with an intermediate pivot point located substantially above the center of the rear wheel, and to the...
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6920953 |
Electrically assisted pedaled vehicle
An improved electrically assisted bicycle has rear wheel, right and left, propulsion elements, each side having a modified freewheel that carries a hand operated electromagnetic-mechanical pawl,...
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6749211 |
Bicycle with reciprocal pedal levers having shiftable pivot axis for transmission ratio change
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...
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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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6705630 |
Personal vehicle
The present invention provides an easy turning and highly accurate personal vehicle. This is accomplished by providing a frame with at least one hubless wheel, wherein the passenger's foot may be...
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6626442 |
Rolling foot apparatus with motion-conversion mechanism
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...
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6619682 |
Scooter
An occupant propelled vehicle is provided that includes a frame having a front portion and a rear portion, front and rear wheels, a platform, a steering mechanism and a drive mechanism. The drive...
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6572128 |
Ratchet propulsion system for scooters
A scooter propulsion system is provided both as a kit for retrofitting and as an improved original manufacture. A foot pedal pivots forwardly and rearwardly as the user presses on a front foot...
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6499747 |
Rocking cycle
The present invention relates to a manually powered vehicle, such as a child's ride-on toy. The vehicle is powered by a rocking, or up-and-down, motion of the rider. The rocking motion is...
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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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6398244 |
Propelling scooter
A propelling scooter includes a chassis, an upright head tube with a handle, a front wheel, and a rear wheel. An elongated pedal is disposed swingably on the chassis. A horizontal transverse first...
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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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6371502 |
Universal conversion kit for human powered wheelchairs
The present invention provides an economical, universal wheelchair conversion kit which offers two, hand-powered, variable-resistive, drive mechanisms for the main wheels of a wheelchair which can...
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6325400 |
Treadle-type vehicle body forward drive structure
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...
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6311998 |
Geared scooter
The present invention relates to a geared scooter comprising a deck assembly, a handlebar, a front wheel assembly and a rear wheel assembly. The front wheel assembly and the rear wheel assembly are...
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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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6189907 |
Treadle cart
A treadle cart, having two axles, each axle having one of two pairs of wheels mounted on it, the treadle cart being powered by the pivoting motion of a treadle board which transfers the power from...
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5839737 |
Self propelled skateboard
The present invention relates to a self propeller skateboard (10) comprising upper deck (12A) pivotally mounted on a drive shaft (22) having a left drive wheel (18L) securely fastened at a left...
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5662347 |
Pedal mechanism for cycle and exercise equipment
A Pedal mechanism for a bicycle or similar piece of exercise equipment is disclosed which allows one to apply a forward force to the drive wheel by simultaneously pressing down on both pedals of...
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5662346 |
Pedal mechanism for cycle and exercise equipment
The invention discloses a pedal mechanism for a bicycle or a piece of exercise equipment which allows one to impart forward motion to the drive wheel of the bicycle through an alternating or stair...
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5551718 |
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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5294140 |
Self-propelled vehicle
A self-propelled vehicle includes a frame having a pair of foot treadles mounted in side-by-side relation and depressible with respect to the frame; an overrunning clutch for each of the foot...
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5242181 |
Human powered vehicle with improved drive system
A human powered vehicle is disclosed. The vehicle includes a frame with the capability for supporting an operator one the frame. The vehicle further includes a drive wheel mounted for rotation to...
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5236398 |
Wheelchair drive apparatus
A drive apparatus and method for continuously transmitting power to an axle to rotatingly drive the axle are disclosed. The drive apparatus includes a flexible ratch such as a flexible chain, belt,...
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5066031 |
Self-propelled vehicle
A self-propelled vehicle includes a pair of foot treadles mounted in side-by-side relation, and an overrunning clutch for each foot treadle. Each foot treadle is mounted to the frame by a four-link...
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4953882 |
Transmission apparatus for bicycle or like pedal-operated vehicle
A pedal driven vehicle is provided wherein up and down movement of a pair of pedals is converted into rotary motion of a drive wheel to provide vehicle locomotion. A chain or belt connected at the...
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4915403 |
Skateboard with mechanical drive
A skateboard has a frame (1) on which a petal (7b) is pivotably mounted. When the pedal (7b) is pressed down its movement is converted via a push rod (16), a crank (26) and a toothed segment (29)...
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4865344 |
Wheelchair hand propulsion apparatus
An apparatus or attachment to a wheelchair to allow a patient to move the chair in a forward, reverse, right or left direction. The apparatus comprises a push rod, spring mounted, actuating at a...
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4781630 |
Muscular force actuated vehicle
On the vehicle are mounted an actuation member, a force transmission unit and a drive element. Preferably, the actuation member is comprised of two levers, each of them being fixed to a metal cable...
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4779863 |
Running exercise bicycle
A running exercise bicycle is ridden by a user who alternately pedals two pedals to drive two rotary wheels into unidirectional rotation via two sets of individual mechanical drive devices to make...
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4762332 |
Wheel chair
A wheelchair having a propulsion and speed change mechanism, the mechanism has a clutch with a cam clutch (21) and a cylindrical fly wheel (23) installed on a hub (24) of the shaft (25) of the main...
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4761014 |
Propulsion of scooters
A scooter of an ordinary general shape but equipped with an improved mechanical drive for the rear wheel or wheels, which drive is comprised of a ratchet mechanism for driving the rear wheel, a...
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4666174 |
Wide powerful range bicycle
A pedal lever type bicycle includes a pedal lever having a front portion and a rear portion, with an intermediate pivot point located substantially above the center of the rear wheel, and to the...
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4666173 |
Foot pedal drive for bicycles
A bicycle having pedal bars pivoted on the frame near the rear wheel, with a pedal sprocket positioned above the rear wheel. A connection member couples the rear end of each of the pedal bars to...
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4657273 |
Two-wheeled cycle
A longitudinal frame is provided having upper front and rear end portions, a first stationary wheel supporting fork is dependingly supported from one of said portions and a second wheel supporting...
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4473236 |
Pedal drive mechanism
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...
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4445701 |
Vehicle structure
There is provided a vehicle which includes a frame, a steerable wheel mounted on the frame and at least one further wheel mounted for free rotation on the frame. A flywheel is mounted for rotation...
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4227712 |
Pedal driven vehicle
A pedal driven vehicle such as a bicycle which employs oscillating levers instead of crank type pedals, and endless chain to which the two pedal levers are respectively connected, one to each run...
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4108459 |
Spring powered bicycle
A mechanism for a rider propelled vehicle having a frame and a ground engaging wheel mounted on it comprising two lever arms on opposite sides of frame, extending backwardly, with foot pedals on...
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3661404 |
BICYCLE
A bicycle with alternating-motion pedals the movement of which is converted by particular chain means into a rotating motion which is applied to the driving wheel of the bicycle.
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3659871 |
PEDAL OPERATED VEHICLE
The two rear wheels of a three-wheeled vehicle are mounted on spaced axles with foot pedal operated drives located therebetween. The operator stands on the pedals and powers the vehicle with a...
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3323812 |
Drive mechanism for a bicycle or the like
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3083985 |
Drive mechanism for a bicycle or the like
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2653037 |
Toy vehicle, including foot operated ratchet drive mechanism
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2466105 |
Treadle scooter
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2436199 |
Pedal scooter
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2383000 |
Bicycle
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2251005 |
Foot pedal propelled vehicle
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