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5209507 |
Transmission system for tandem bicycles
A transmission system is provided for a tandem bicycle having a frame on which are mounted a front, steerable, ground engaging wheel, and a rear, driven, ground engaging wheel. The bicycle also...
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5209508 |
Bicycle, handlebar and adapter system
Novel handlebars for a bicycle are disclosed which provide gripping positions below the handlebar crosspiece. These lower drop positions allow a rider to comfortably maintain a low frontal area...
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5197353 |
Crank and spider assembly for bicycle
A one-piece crank arm for a bicycle is machined from high strength aerospace aluminum 7075-T6. One end of the crank arm has a threaded boss to be fastened in threads of an associated spider. The...
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5190500 |
Chain thrower mechanism for bicycle gear change
In a chain thrower mechanism of a bicycle derailleur gear mechanism a parallelogram linkage is formed from plastics material at least part of the joints of which are plastic film hinges.
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5184838 |
Dual wheel driven bicycle
The dual wheel driven bicycle utilizes an elongate flexible shaft or cable for transferring rotational motion or torque to the front wheel. In the preferred embodiment, a rear ring gear is mounted...
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5165301 |
Steering members for bicycles
A steering member for a bicycle has extension sections extending outwardly from the central mounting section and a pair of opposed handgrip sections positioned adjacent to the ends of the extension...
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5158314 |
Bicycle with traction on both wheels
A traction system for driving the front and rear wheels of a bicycle of the type including a gearshift connected to the rear wheel. The gearshift is coupled to a main drive chain which is driven by...
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5154094 |
Aero-type handlebar with forearm supports
The invention relates to an aero-type handlebar to be connected to a racer-type handlebar or mountain bike handlebar comprising two handlebar legs respectively connectable with the racer-type...
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5154676 |
Power driving device for bicycle
A power driving device for a bicycle has a planetary gear assembly mounted with a driving axle shaft, including a housing fixed to the bicycle frame with a side wall rotatably mounting the driving...
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5145210 |
Bicycle, handlebar and adapter system
Handlebars for a bicycle include a central crosspiece connectable to a bicycle steering post and sidewardly extending portions which may include a pair of pads for supporting a rider's forearms. A...
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5116070 |
Dual wheel driven bicycle
The dual wheel driven bicycle utilizes an elongate flexible shaft or cable for transferring rotational motion or torque to the front wheel. In the preferred embodiment, a rear ring gear is mounted...
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5102155 |
Bicycle with two speed-changing mechanisms
A bicycle includes a speed-increasing mechanism interposed between the driving sprocket and the driven sprocket. The speed-increasing mechanism includes a small intermediate sprocket mounted...
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5094322 |
Double lever braking system
A double lever braking system that allows triathletes, cyclists and recreational riders the ability to control a bicycle equipped with an aerodynamic handlebar system through various situations...
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5069469 |
Recumbent cycle
Recumbent cycle (12) is supported by a pair of forward steerable wheels (16) and a single rear drivewheel (18) mounted on rear end portion of a frame structure (14) by a hub assembly (50) having an...
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5064212 |
Bicycle utilizing the vector system
A bicycle which comprises a triangular frame, a front fork including a vectorial angle of 90°, the length of the upper portion of the front fork being longer than that of the lower portion of the...
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5054801 |
Bicycle with belt drive
A belt drive for bicycles with a drive pulley rotated by the pedals of the bicycle and a driven pulley for driving the rear wheels of the bicycle. A V-belt connects the pulleys. Each pulley is made...
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5004258 |
Kit for converting a bicycle to a dual wheel driven cycle
A dual driven cycle and a kit for converting conventional, single driven cycles into dual driven cycles are disclosed. The invention is suitable for accommodating bicycles, motorcyles, dirt bikes,...
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5000469 |
Bicycle handlebar arm rests
A bicycle handlebar that connects to a steering post foreward of the bicycle seat has an adjustable support pad assembly for the rider on which to support his body at his forearms or elbows...
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4995627 |
Bicycle utilizing the vector system
A bicycle which comprises a triangular frame, a front fork including a bent portion with an vectorial angle of 90°, wherein the length of the upper portion of the front fork being longer than that...
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4993733 |
Three wheeled recumbent cycle
A three wheel recumbent vehicle having the steering pivot point of the front axle tilted forwardly about 8° from perpendicular, causing the vehicle from the pivot point back to lean into a turn,...
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4966381 |
Adult tricycle
A tricycle including a generally horizontal perimeter frame supported above the ground by a pair of rear wheels and a steerable front wheel. The perimeter frame is continuous along one side and...
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4951525 |
Handlebars for cycles, particularly bicycles for triathlons and speed trials
Cycle handlebars include a transverse element which can be connected centrally to a steering pillar and has two side extensions which extend forwardly and converge inwardly of the handlebars. Two...
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4936597 |
Fully enclosed multiple speed drive for a chain driven tandem bicycle
An enclosed multiple speed drive for a tandem bicycle locates the pedal drive shaft for the rear rider on the axis of the rear wheel. The drive features a chain case which replaces the chain stay...
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4930798 |
Bicycle handle assembly
A bicycle handle assembly comprises a pair of side clamps provided on a handle post, and a pair of half handle bars respectively supported by the side clamps. Each half handle bar includes a...
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4925202 |
Three-wheeled pedal-propelled cycle with front and rear brakes
A pedal-propelled tricycle includes two front wheels, a rear wheel, a pedal drive and a handle bar. The pedal drive serves to rotate the axle of one front wheel by way of a chain while a brake on...
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4909529 |
Bicycle with belt drive
A bicycle has a belt and pulleys in place of the usual chain and sprockets. Each pulley has three (more of less) racways separated by discs (pulley walls). The discs (pulley walls) have openings...
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4898047 |
Crank and sprocket drive
Apparatus is provided for propelling a bicycle. In a preferred embodiment a crank and a sprocket are included which are rotatable relative to one another and have a common center of rotation. A...
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4895385 |
Kit for converting a bicycle to a dual wheel driven cycle
A dual driven cycle and a kit for converting conventional, single driven cycles into dual driven cycles are disclosed. The invention is suitable for accommodating bicycles, motorcycles, dirt bikes,...
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4846489 |
Pedal-driven vehicle
A vehicle with a pedal drive, such as a bicycle, tricycle or moped, includes a frame. A pedal drive is rotatably mounted on the frame and includes a driving gear. A wheel is rotatably mounted on...
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4842291 |
Enclosed multiple speed drive for low maintenance chain driven bicycles
An enclosed drive for a low maintenance bicycle features a chain case which replaces the conventional chain stay on the right side of the bicycle, and an improved nine speed planetary transmission...
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4840084 |
Freewheel mechanism for bicycles
A freewheel mechanism for bicycles includes a side plate which is easily removed, allowing a sprocket to be quickly replaced without removing the body of the freewheel mechanism from the hub of the...
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4826191 |
Bicycle or tricyle
A velocipede such as a bicycle or tricycle includes a drive sprocket mounted on a frame for adjustment between a plurality of positions defining an arcuate path having an axis of curvature. A...
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4778192 |
Recumbent vehicle
This disclosure relates to novel improved recumbent vehicles having a frame comprising an elongate tubular support means adapted to substantially entirely enclose within its interior the vehicle's...
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4773662 |
Double-drive bicycle
A velocipede, for example a bicycle, having a front wheel drive is disclosed. The front wheel has a gear axially mounted thereon. In place of regular handlebars is a drive gear rotatably mounted on...
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4773663 |
Recumbent bicycle
A recumbent bicycle is powered by the driving of a crank spindle that rotates on an axis generally coincident with that of the front wheel. The crank spindle is disposed within a spindle housing...
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4750754 |
Bicycle and handlebar system
Novel handlebars for a bicycle are disclosed. The handlebars include a crosspiece connected to a bicycle steering post, and first handles are connected to the crosspiece. Novel second handles...
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RE32681 |
Three wheel vehicle
A three wheel vehicle is provided with improved drive and handling characteristics, especially when turning. The three wheel vehicle includes a frame with a pair of front wheel and axle assemblies...
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4741546 |
Torque responsive automatic bicycle transmission
An automatic transmission for use on a bicycle is mounted on a bracket that is connected to the rear axle of the bicycle. A first chain connects the chain wheel with a sprocket fixed for rotation...
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4688816 |
Multiple-wheel cycle
A multiple-wheel cycle includes a front wheel and two rear wheels respectively driven by two chainwheels formed on a driving shaft rotatably mounted on a bottom bush of a seat tube of the cycle...
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4659098 |
Semi-recumbent bicycle
A semi-recumbent bicycle having a conventional wheelbase. The frame of the bicycle has a unique geometric configuration in that the main tube of the frame is straight such that its axis forms an...
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4659097 |
Bicycle
The invention relates to a bicycle, the frame (31) of which is connected to a single-arm drive extension (30) which, at its rear end, has firmly connected to it a rear wheel axle (11a) which is...
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4618160 |
Recumbent vehicle
A recumbent vehicle having a frame which includes an elongate tubular support adapted to substantially entirely enclose within its interior the vehicle's primary drive mechanism thereby eliminating...
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4598920 |
Automatic transmission for a bicycle and the like-pedaled apparatus
An automatic transmission for a bicycle comprising a sprocket wheel of variable diameter, for receivably engaging a linked bicycle chain, drivingly connected to a bicycle wheel. The diameter of the...
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4593923 |
Bicycle sprocket chain cleaner
This is a bicycle sprocket chain cleaner that includes a housing and a removable cover wherein the chain while still on the bicycle is placed in the housing and the cover is placed on the housing...
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4582318 |
Exerciser machine having dual chain drive for a variable resistance device
An exerciser device has a rotary crank assembly turnable in opposite selected directions and driving an endless first chain entrained on sprockets. The chain drives through a first engaged clutch...
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4559892 |
Amphibious vehicle
Amphibious vehicle having a pedal assembly coupled to propelling devices. On land the vehicle is propelled by at least one wheel driven by the pedals. The wheel has vanes for use in water. Floats...
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4531754 |
Radial braking system
An improved radial braking system uses the power of the cyclist's back pedaling to bring the braking member into contact with the rim of the wheel. The system allows for the direct contact of the...
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4522610 |
Gear crank apparatus for a bicycle
A gear crank apparatus for a bicycle, comprising a crank shaft, a pair of crank arms, and at least one chain gear. The chain gear has an ellipse-like shape and peripheral teeth located on different...
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4502705 |
Semirecumbent tandem bicycle
Separate pedal cranks are provided for the front and rear riders of a tandem bicycle having a front wheel of substantially smaller diameter than the rear wheel. Such front wheel is carried by a...
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4479660 |
Two wheel synchronously driven bicycle
A two wheel, synchronously driven bicycle is disclosed as comprising a frame, a rear wheel, a front wheel, a foot powered drive unit for said rear and front wheels, a fork member whereby the front...
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