| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 280267000 | Two-wheel controlled | 25 |
| 20090058036 | Knee Walker - A knee walker includes a frame; a cushion; a front crossmember; two rear wheels; two front spindles and two front wheels each pivotally connected to one of the two front spindles. Positive steering is provided by a handlebar rotatably connected to the front end of the frame; a steering gear responsively engaged with the rotatably connected handlebar shaft; a steering arm actuated by the steering gear responsive to the handlebar; a steering rod connecting the steering arm and one of the two front spindles, so as to pivot one associated front wheel responsive to the steering arm; and a tie rod linking the two front spindles responsively to the steering rod. | 03-05-2009 |
| 20090058037 | Balance Compensation Apparatus - The present invention relates to a balance compensation apparatus to be used by persons with one dysfunctional leg and one operative leg. In particular, the invention relates to an apparatus with a frame having at least one lateral support with an aperture for slidably engaging a kneeling platform assembly and a steering column that is mounted on the frame to be offset from a longitudinal centerline of the frame. A handlebar is connected to the steering column. The platform and the handlebar are adjustable for added comfort, control and stability. The platform assembly may be offset of the longitudinal centerline to a side in common with the steering column and have cushions for added comfort. A hand brake may provide stability and safety and the steering column may fold for easy storage. | 03-05-2009 |
| 20090283984 | Two wheel streering bicycle with each wheel having its own steering control operated by rider's left and right hand respectively and rider positioned facing an angle greater than zero and less than ninty degrees with respect to the direction of motion - A two wheel steering bicycle with two steering controls and rider positioned facing an angle greater than zero and less than ninety degrees with respect to the direction of motion. A frame member connects the rear head tube to the front head tube. The rear wheel attaches to the rear fork extending upwards. The rear fork steerer column passes through the rear head tube and can rotate within the rear head tube by means of a bicycle bearing headset. A rear steering handle is connected to the rear fork steerer column. The rear steering handle is designed to contact the rider's first hand. The front wheel attaches to the front fork extending upwards. The front fork steerer column passes through the front head tube and can rotate within the front head tube by means of a bicycle bearing headset. A front steering handle is connected to the front fork steerer column. The front steering handle is designed to contact the rider's second hand. A seat tube member attaches to the frame member. A bicycle saddle is attached to the seat tube member in such a way as to position the rider facing an angle greater than zero and less than ninety degrees with respect to the longitudinal axis of the frame member. A bicycle bottom bracket, front sprocket, left and right crank and pedals are attached to the device. The rider's left hand is positioned at the rider's left side and contacts one of the steering handles. The rider's right hand is positioned at the rider's right side and contacts the other steering handle. The saddle and steering handles should be adjusted so that the rider's body is roughly balanced across the vertical plane of the rear and front wheels. The device moves forward and the rider keeps the device balanced by constantly correcting the front and rear steering handles. It may take some practice to make this correction reflex, but once mastered this device offers more control and artistic expression than a currently available bicycle. | 11-19-2009 |
| 20100025956 | BICYCLE HAVING INDEPENDENT REAR WHEEL STEERING - A wheeled vehicle, which may be a bicycle, having independent front and rear wheel steering, and rear wheel propulsion from a pedal assembly. The rear wheel is pivotally mounted to enable steering. The rear sprocket transmits torque to a jointed drive shaft which drives the rear wheel at any degree of steering. Rear steering is actuated by a frame mounted control lever, which draws a flexible cable which extends through the hollow frame. Indicia indicates the degree of rear steering. The control lever has a locking feature to prevent inadvertent steering. The rear wheel is pivotally mounted to the frame to enable clearing obstacles in the road. | 02-04-2010 |
| 20110006500 | COMMUTER VEHICLE - Disclosed commuter vehicles include a chassis that includes a frame, opposed first and second steerable front wheels, a trailing rear wheel, and a linear-input steering mechanism for controlling an orientation of the first and second steerable front wheels. The commuter vehicles also include a drive-train for transmitting rotational motion and torque from a power-input source to rotational motion of the trailing rear wheel, and a body defining a cockpit and being supported by the chassis. An outer-most lateral dimension of the body corresponds to a maximum outer-most lateral dimension of the commuter vehicle. Embodiments of linear-input steering mechanisms compatible with commuter vehicles being so dimensioned as to fit through an open door are described. | 01-13-2011 |
| 20140049021 | ROAD HOLDING ABILITY MECHANISM FOR THE TWO FRONT WHEELS OF A MOTORCYCLE - The present invention provides a road holding ability mechanism applied to a motorcycle with two wheels in front. The mechanism may be configured on a three-wheeled motorcycle which has two front wheels and a single rear wheel or on a four-wheeled motorcycle with two front wheels as well as two rear wheels. Under any operating condition, the mechanism enables the two front wheels to offer great road holding ability, that is, to remain stable when moving so as to ensure the motorcycle against rollovers. The present invention includes a simple and innovative structure. | 02-20-2014 |
| 20140091551 | BICYCLE CONVERSION KIT AND TRICYCLE APPARATUS - An apparatus is provided for bicycles to make them more utilitarian and functional. The attachment is easily attached, and potentially attached without damage or significant modification to the bicycle. The apparatus includes a frame member attached to the bottom bracket portion of the existing bicycle, and a gimbal attached to the fork of the existing bicycle in place of the original front tire. The apparatus is steerable using the handle bars and fork on the existing bicycle frame, and is configured for stability when cornering. The apparatus includes a cargo carrier located in front of the cycler where it is easy to see, while maintaining a stable center of gravity and also an ability to lean into corners for cornering stability. Variations include one or two front wheels, and one or two steering drive links. Also, the apparatus is a flexible design providing multiple potential utilitarian uses. | 04-03-2014 |
| 20140097592 | KNEE-WALKER - Knee-walkers allow amputees and individuals with injuries to maintain independent movement. Their stability and steering is very important. The invention comprises a knee-walker ( | 04-10-2014 |
| 20140183836 | STEERING APPARATUS FOR VEHICLE - A steering apparatus for a two-wheeled motor vehicle includes a handlebars-side steering shaft supported by a head pipe, a wheel supporting cylindrical shaft supported by a front axle and over which a hub is fitted, and a steering link mechanism. First and second link members of the link mechanism are connected to each other in a plurality of articulations such that the link members can angularly move. An amount of angular movement is limited to a predetermined range, and a distance between a front wheel-side end and the steering shaft-side end of the steering link mechanism can be changed. The front wheel-side end of the steering link mechanism is connected to the wheel supporting cylindrical shaft through a brake caliper bracket member. | 07-03-2014 |
| 20140375015 | MOTORIZED REVERSE TRIKE WITH TILTABLE BODY - A motorized reverse trike with a tiltable body comprises a frame with a header pipe, two front wheels, a tilting mechanism arranged on the header pipe, two suspension mechanisms hinged between the two front wheels and the tilting mechanism respectively, a steering mechanism with handlebars hinged between the header pipe and the two suspension mechanisms, and a locking mechanism for locking the tilting mechanism. | 12-25-2014 |
| 20150042063 | Frame for a human-powered vehicle - The preferred embodiments provide a frame for a one person three-wheeled human powered vehicle, the rear portion of which resembles an upright bicycle frame capable of supporting a fixed rear drive wheel substantially in alignment with the frame centerline. The frame has a left-side lateral extension and a right-side lateral extension, each of which includes a head tube at or near its outer end where front forks or steering posts can be secured. Each front fork or steering post can then hold one of two front steerable wheels. The frame is compatible with shock-absorbing suspension technology, which can be employed if desired. | 02-12-2015 |
| 20150307149 | VEHICLE - A vehicle includes a body frame, a left front wheel and a right front wheel, a link mechanism configured to be deformed as a vehicle body leans, and vehicle components disposed directly forward of the link mechanism in relation to a front-and-rear direction of the vehicle. The vehicle components are supported on the body frame via penetrating portions that extend from the body frame toward the front of the vehicle and penetrate the link mechanism. | 10-29-2015 |
| 20150314826 | ARTICULATED TWO-WHEELED VEHICLES - Articulated two-wheeled vehicles have front and rear frame sub-assemblies connected together by an articulated frame joint configured to enable directional and angled counter-action of front and rear wheels or skis. | 11-05-2015 |
| 20150314827 | VEHICLE - A vehicle includes a vehicle body frame that can lean, a right front wheel and a left front wheel, and an upper cross portion and a lower cross portion of a link mechanism each including a right end portion, a left end portion, and a middle portion supported on the vehicle body frame. The upper cross portion and the lower cross portion have different shapes. An upper right displacement and an upper left displacement that result when a rearward test force is exerted on an upper right bearing and an upper left bearing that support the upper cross portion with the lower cross portion removed are equal or substantially equal, and a lower right displacement and a lower left displacement that result when a rearward test force is exerted on a lower right bearing and a lower left bearing that support the lower cross portion with the upper cross portion removed are equal or substantially equal. | 11-05-2015 |
| 20160121959 | URBAN QUADRACYCLE - The device disclosed herein is a quadracycle including a forward assembly and a rear assembly. The forward assembly includes a forward frame, a right suspension assembly connecting a forward right wheel assembly to the forward frame, and a left suspension assembly connecting a forward left wheel assembly to the forward frame. The rear assembly includes a right rear frame, a left rear frame, a rear tube connector connecting the right frame to the left frame, and a rear suspension assembly connecting the forward frame to the right rear frame and the left rear frame. | 05-05-2016 |
| 20220135170 | Dual Linkage Front Fork with Steering Lock for Scooter - A vehicle includes a dual linkage assembly coupled to two front wheels and a fork. The dual linkage assembly includes arms coupled at pivot points. Each arm rotates independently at the pivot points and responds to force applied by the rider, such that both front wheels maintain contact with the ground. The vehicle further includes a lock assembly including a lever and a lock block coupled to the front fork, a first piece with a first notch coupled to one or more of the arms, and a second piece with a second notch coupled to a head tube. When locked, the lock block engages the first notch, preventing the dual linkage assembly from rotating, and engages the second notch, preventing the fork from rotating. The vehicle is then capable of standing upright without assistance from a rider or stand. | 05-05-2022 |
| 280269000 | Stub axle | 9 |
| 20100283218 | Agricultural Harvester Rear Axle Arrangement for Narrow Transport - An agricultural harvester rear axle arrangement for an agricultural harvester ( | 11-11-2010 |
| 20130056950 | Moveable Device - A device, comprising a planar element with a first wheel supported about a first rotary axis, a handle support, and a folding joint connecting the handle support to the planar element pivotal about a first pivotal axis such that in an operating state the handle support is aligned to a planar element at an angle, is provided. At least one second wheel is supported about a second rotary axis, at the distal end of the planar element. The second wheel is pivotal about a second pivotal axis and coupled to the handle support via a mechanism which converts a pivotal motion of the handle support about the first pivotal axis into a pivotal axis of the second wheel about the second pivotal axis such that the second rotary motion of the second wheel shows in the idle state a greater angle to the planar element than in the operating state. | 03-07-2013 |
| 20130168944 | TILTABLE MOTORCYCLES WITH TWO FRONT STEERING WHEELS - Motorcycles are provided which include a frame, two front steering wheels, a steering pipe rotatably connected to the frame and rigidly connected to two supporting assemblies, one for each front steering wheel and a steering group consisting of two pairs of transversal arms—upper front, lower front, upper rear and lower rear—arranged inverted at the opposite sides of a central steering pipe and laterally connected through two lateral posts. On each of the supporting assemblies the fixed portions of two telescopic elements may be constrained. Each pair of telescopic elements may be cantilever-mounted with respect to the steering wheel. | 07-04-2013 |
| 20140346753 | Road Holding Ability Mechanism For The Two Front Wheels of a Motorcycle - The present invention provides a road holding ability mechanism applied to a motorcycle with two wheels in front. The mechanism may be configured on a three-wheeled motorcycle which has two front wheels and a single rear wheel or on a four-wheeled motorcycle with two front wheels as well as two rear wheels. Under any operating condition, the mechanism enables the two front wheels to offer great road holding ability, that is, to remain stable when moving so as to ensure the motorcycle against rollovers. The present invention includes a simple and innovative structure. | 11-27-2014 |
| 20140353940 | TILTABLE MOTORCYCLES WITH TWO FRONT STEERING WHEELS - Motorcycles are provided which include a frame, two front steering wheels, a steering pipe rotatably connected to the frame and rigidly connected to two supporting assemblies, one for each front steering wheel and a steering group consisting of two pairs of transversal arms—upper front, lower front, upper rear and lower rear—arranged inverted at the opposite sides of a central steering pipe and laterally connected through two lateral posts. On each of the supporting assemblies the fixed portions of two telescopic elements may be constrained. Each pair of telescopic elements may be cantilever-mounted with respect to the steering wheel. | 12-04-2014 |
| 20150344091 | VEHICLE - A vehicle includes a body frame that leans and two front wheels that prevent enlargement of a peripheral construction around a steering shaft above the two front wheels while maintaining a function of a link mechanism. An upper cross portion and a lower cross portion of the link mechanism each include a portion supported at a right end portion and a left end portion thereof and supported on a body frame at a middle portion thereof. The upper cross portion and the lower cross portion preferably have different volumes. Upper displacements that result when a rearward test force is exerted on an upper right bearing and an upper left bearing that support the upper cross portion with the lower cross portion removed, and lower displacements that result when a rearward test force is exerted on a lower right bearing and a lower left bearing that support the lower cross portion with the upper cross portion removed are equal or substantially equal. | 12-03-2015 |
| 20160023709 | MOTORCYCLE TO REVERSE TRIKE CONVERSION KIT AND METHOD - A method and kit for converting a two-wheeled motorcycle into a three-wheeled reverse trike. To convert the two wheeled motorcycle to a reverse trike, the front fork tubes, including the front wheel, are removed from the triple-tree of the motorcycle. A frame assembly mounts to a forward end of the motorcycle. Left and right wheels are mounted to the frame assembly with wheel suspension systems. A steering shaft is attached to the triple -tree of the motorcycle. Steering tie rods are linked to the steering shaft and the wheel spindles, whereby turning of the handle bars causes the steering shaft to rotate about its longitudinal axis and causes the left and right steering tie rods to effect corresponding turning of the left and right front wheels. | 01-28-2016 |
| 20160121954 | VEHICLE - An inner fender includes a cover face surface, a left projecting portion, and a right projecting portion. Under a condition that a body frame is in an upright state and that a left front wheel and a right front wheel are not turned, the left projecting portion projects forward from the cover face surface behind a rear edge of the left front wheel; the right projecting portion projects forward from the cover face surface behind a rear edge of the right front wheel; and a portion of the cover face surface between the left projecting portion and the right projecting portion faces a space defined between the left front wheel and the right front wheel. | 05-05-2016 |
| 20190144064 | REVERSE TRICYCLE SUPPORT STRUCTURE | 05-16-2019 |
