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8181977 |
Bicycle arm-drive apparatus
A bicycle arm-drive apparatus includes a stationary mounting structure, an arm drive input mechanism, a drive motion transmission mechanism, and a plurality of connectors. One end of the mounting...
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7967313 |
Recreational vehicle with elliptical drive
A wheeled vehicle includes a pair of leg driven skis and hand operated levers for simultaneously applying power to a crank and drive sprocket to propel the vehicle. A pair of controllers, one at...
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7967314 |
Wheeled vehicle drive mechanism with hand lever arm
A wheeled vehicle drive mechanism is provided that has a hand leverage arm and one or more horizontal gears to move associated drive gears. A drive chain meshed with a fixed drive sprocket keyed to...
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7963539 |
Wheelchair
A wheelchair comprises a main frame and a seat mounted on the main frame. A pair of front wheels and a pair of rear wheels are also mounted on the frame. A propulsion mechanism is provided for...
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7959176 |
Manually propelled wheelchair device
A conveyance has a plurality of wheels and, at least, first and second drive axles, which are mounted, or disposed, between the wheels. One of the wheels defines a first wheel that is rotatably...
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7938419 |
Phase independent row motion propelled bicycle
A standard-sized bicycle includes a main frame, a rear drive wheel and a rowing mechanism. The rowing mechanism is coupled to the main frame about a fulcrum. The fulcrum allows the rowing mechanism...
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7896375 |
Arm and leg powered bicycle
The present invention relates to an arm and leg powered bicycle, comprising handle levers, a front wheel, a rear wheel, a handle shaft, supporting frames, pedals, a pedal shaft, front and rear...
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7780179 |
Drive system for a human powered vehicle
A drive system (3) for a human powered vehicle. The drive system (3) includes at least one input member (31), a transmission system (21) arranged to convert movement of the input member (31) to...
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7726676 |
Device for hand-driven operation of a guided wheel
A device for hand-driven operation of a guided wheel arranged on a steering gear is pivotable about a steering axis perpendicular to the wheel's axis of rotation. The device includes first and...
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7717447 |
Propulsion aid
A propulsion apparatus (20) which can be mounted to a wheel (8) (or integrally formed therewith) of a vehicle, for example a wheelchair. The propulsion apparatus (20) has a first portion which can...
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7520519 |
Manually driven wheelchair
A wheelchair includes a standard foldable frame for supporting a seat with a first and second drive wheel driven by drive levers. Each wheel has a transmission providing for three forward speeds...
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7360780 |
Apparatus for hand propulsion and steering of a scooter, tricycle or bicycle
An apparatus is disclosed by means of which an operator both propels and steers a scooter, tricycle, or bicycle with a single set of handlebars. Power is applied by pumping the handlebars up and...
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7344146 |
Quadracycle
The improved wheelchair employs the use of two push levers attached to two forward drive gears, and two reverse drive gears, which propel the two main rear wheels of the chair through bicycle...
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7303202 |
Apparatus for the transfer of linear human power to a rotating member
An apparatus for the transfer of linear human power to a rotating member is disclosed, which is adaptable to exercise equipment, wheeled chairs, scooters, bicycles, tricycles, etc. The hands of the...
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7296811 |
Wheelchair propulsion device
This invention provides wheelchair propulsion devices that do not contact the axles of the wheels to which they are attached, that decrease the amount of force required to propel the wheelchair,...
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7293790 |
Omni-directional toy vehicle
The invention relates with the omni-directional toy vehicle that can move in all directions of forward, backward, rotational, left and right movement by driving manually the omni-directional wheels...
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7140626 |
Running exercise bike
An exercise apparatus including a seatless frame for simulating running without the stress producing loads associated with each stride. The exercise apparatus has at least one front wheel and at...
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7021639 |
Bicycle of type driven by operation of handle
Disclosed herein is a bicycle of the type driven by operation of a handle. According to the present invention, a shaft rod of the bicycle is installed with a hinge so as to enable the handle to...
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7007962 |
Child's swaying bike
A child's swaying bike includes a seat, two rear rollers, a center rod, two front rollers, and a handlebar. The bike can move forward by swaying of the center rod to the right and the left. The...
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6916032 |
Manually-propelled vehicle and related systems
The invention provides a propulsion, braking and anti-rollback control assembly for use in manually propelled vehicles such as wheelchairs. In one embodiment, the invention provides a wheelchair...
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6874587 |
Electric vehicle with electric-free driving system
An electric vehicle includes a vehicle frame, at least a driven wheel rotatably supported by the vehicle frame, and a power generator device including a clutch device for selectively engaging with...
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6866278 |
Small man-powered bump car
A small man-powered bump car that requires only human muscle as its energy source. Extended play, either individually or in a group, can be enjoyed by riders of the bump car in a relatively level...
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6708996 |
Manpower-driven cycle with rower mechanism
A manpower-driven cycle comprising a driving mechanism transforming a reciprocating motion of a handle into a rotary motion of a rear wheel. A steering and maintaining device comprises a telescopic...
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6581947 |
Steerage of a vehicle
A hand cycle includes a frame and a seat which is pivotable relative to the frame about a longitudinally extending axis to effect steerage of the hand cycle.
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6578860 |
Dual function wheelchair
The present invention implements a releasable wheel mounting mechanism and a dual braking system to provide a wheelchair that transforms from a conventional wheelchair to a companion wheelchair. A...
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6572129 |
Dual power recumbent tricycle
A recumbent tricycle which includes a propulsion system which includes a combination of foot and arm power for propulsion. Pedals are operated with the rider's legs. Handles are also connected to...
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6561534 |
Twist vehicle with rear operation system
A twist vehicle which includes a rear operation system wherein the steering unit of twist vehicle is mounted in a relatively rear position with respect to the vehicle frame, such that a rider can...
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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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6499755 |
Operation arrangement for a twist vehicle
The present invention relates to an operation arrangement, particularly to an operation arrangement for a twist vehicle having a sliding slot located on an end portion of an driving frame, a pivot...
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6361058 |
Playcart movable with hands
A playcart movable with hands has two wheel supports each has a side wheel fitted onto it. The wheel supports are each connected to a connecting plate with two pins. The connecting plates are each...
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6276760 |
Quick release hub for cycle wheel
A quick release hub assembly having an elongate hollow axle for receiving thereon a captively held rotatable wheel. For attachment and release, the assembly is provided with an insert mechanism,...
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6276703 |
Land rower
This is a hand-propelled wheeled device for a rider. The device includes: a frame with two sides; a first and second drive wheel rotatably mounted to the two sides; a first hand crank connected to...
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6257607 |
Mount for cycle shift and brake handles
A mounting assembly on a hand cycle for the shift and brake handles which includes a collar clamp carried on the end of the front post for detachably connecting with an elongated support member...
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6257608 |
Apparatus for propelling a wheel chair
An apparatus for propelling a wheelchair includes a spokeless power ring connected to the wheel chair, and a drive wheel supporting the chair and engaging the floor. The power ring and drive wheel...
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6247715 |
Lever-operated wheelchair
To produce a wheelchair with high forward-moving efficiency, incorporating a simple structured driving mechanism that is compact enough to be fitted between the wheel and the frame. Thanks to this...
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6173986 |
Rowing arms driven wheel chair
A wheel chair is provided, including a wheel chair frame including a seat portion, an axle structure and two lateral wheels mounted to the axle structure for rolling the wheel chair over a support...
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6135222 |
Installing structure for an electrically-driven wheelchair
In a wheelchair, a rear wheel part with a pair of rear wheels is assembled to the rear side of a frame in detachable state. The frame is constituted in foldable state. The rear wheel part and the...
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6035975 |
Wheel lock assembly
The wheel lock assembly includes a housing that is either integrally formed on a frame, or provided as a separate component for adjustable mounting on the frame. The housing includes a circular...
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5988661 |
Drive assistance device for ordinary wheelchairs
A drive assistance device is disclosed to assist the occupants of ordinary manual weelchairs to propel themselves. Rather than grasping the grip rings secured to the main wheels of the wheelchair...
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5941547 |
Manually propelled wheelchair device
A manually propelled wheelchair (10) powered by the chair occupant. Hand power levers (11,12) are pivoted on each side of the chair frame (15). Drive cables (25) connect each lever to a wheel...
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5894912 |
Wheelchair braking device
A wheelchair braking device (10) adapted to automatically engage when the wheelchair (12) to which the device (10) is mounted is unoccupied. The braking device (10) includes a support structure...
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5853184 |
Handcycles
A hand-powered vehicle with a device for positioning the crank arms so that the rider can easily adjust them for both vertical and horizontal movement and placement. A device for supporting the...
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5722675 |
Gymnastic toy car
A gymnastic toy car comprising a car body with a housing and a chassis, two front wheels on the front two sides of the chassis, two rear wheels on the rear two sides thereof through a rear axle,...
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5542689 |
Bicycle front wheel drive
A front wheel drive system for a bicycle which can be installed on a bicycle to drive the front wheel by rocking the handlebars back and forth. A chain positioning and support mechanism is attached...
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5465989 |
Hand-powered and controlled two-wheeled cycle for the disabled
Hand-powered and controlled two-wheeled cycle for use of disabled persons having reduced leg functions. The cycle provides a rapid and efficient means of mobility for leg-disabled persons. A...
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5301971 |
Ratcheting wheelchair hub
A wheelchair (10) for forwardly transporting a person in a sitting position includes a frame (12), a seat (14) and an axle (16). A pair of drive wheels (18) are rotatably supported on the axle (16)...
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5297810 |
Transport means for invalids
A wheelchair having two driving wheels (4, 19) with two corresponding hand levers (7, 20), and two transmission mechanisms (16) which convert the swinging motion of their levers (7, 20) into rotary...
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5282640 |
Exercise bicycle
An O-ring is mounted to the wheel of a manually powered bicycle. A Teflon washer is mounted on the wheel sprocket contacting the O-ring. The friction between the O-ring and the Teflon washer are...
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5184837 |
Wheelchair
An improved wheelchair which allows the wheelchair occupant to travel easier and faster over varied terrain, for longer distances and in a more sanitary environment. The invention includes a wheel...
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5029887 |
Steerable skateboard
A skateboard which can be propelled with both hands through manpowered propelling devices, and which has been designed in such a manner that a rider can both propel and steer from a body position...
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