Class 280/267 - Two-wheel controlled

Subclass of Class 280 - Land vehicles
Definition: Vehicles which are steered by means of two wheels.
No. of patents: 89
Last issue date: 08/24/2010

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Number	Title	Issue Date
7780180	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 t...	08/24/2010
7249778	Vehicle A vehicle includes a load-bearing body having a front end and a rear end, at least one carrier supporting the body on a surface on which the vehicle is positioned, and a steering device. The steering device includes at least one wheel and at least one castor-type wh...	07/31/2007
7241197	Steering system for movable toy vehicles A wheeled vehicle for small children with a steering wheel on a long steering column that extends upward and backward to about waist level of a child walking behind the vehicle. The child propels and steers the vehicle by pushing on the steering wheel and turning th...	07/10/2007
7238134	Torque vectoring drive axle assembly A drive axle assembly includes first and second axleshafts connected to a pair of wheels and a drive mechanism operable to selectively couple a driven input shaft to one or both of the axleshafts. The drive mechanism includes a differential, a speed changing unit op...	07/03/2007
7226081	Steering knuckle structure A steering knuckle structure is incorporated with an upright pipe and a shaft wherein the upright pipe is able to twist. The steering knuckle structure comprises a fastener, a sleeve and a pair of lids. A connector is provided at the bottom of the upright pipe. The ...	06/05/2007
7216878	Steering column retainers for children's ride-on vehicles A children's ride-on vehicle and a method of connecting a steering column to the vehicle. The vehicle includes a body and a plurality of wheels. The vehicle also includes a steering assembly configured to steer at least one steerable wheel. The steering assembly inc...	05/15/2007
7188853	Tricycle A tricycle is comprised of a frame, a front wheel, a parallel four-bar linkage, two rear wheels, and two handlebars. The frame includes a stationary fork connected with the front wheel. The linkage is mounted at a rear section of the frame, having two side bars. The...	03/13/2007
7178813	Scooter A scooter is described herein having control cables for use in guiding the scooter. In the preferred embodiment a cable is used to straighten the rear wheels which are connected in tandem and a steering column with a t-top is used to steer the front wheels. In an al...	02/20/2007
7168723	Front wheel drive for toy vehicles Front wheel drive mechanism for toy vehicles in which supports are attached to the vehicle, with a drive bar being positioned between them, at each end of which is mounted a respective sub-assembly including a clasp and a cross link, of which two legs are fitted int...	01/30/2007
7159882	Tricycle and steering assembly In one embodiment of the present invention, a steering mechanism for a children's toy vehicle comprises a non-circular wheel piece connectable to a wheel turning mechanism of a toy vehicle. An arcuate front portion extends along the front periphery of the wheel piec...	01/09/2007
7152868	Vehicle with variable guided pendular motion A vehicle (1) includes a chassis (2) which has a steering assembly (3) at one end and at least one wheel at the other end. The steering assembly includes a pair of steering wheels (4a, 4b) and an interconnecting steer...	12/26/2006
7137470	Drive device for an industrial truck A drive device for an industrial truck includes a pivoted bolster rotatable around a vertical axis (V), two drive wheels (4, 5) mounted on the pivoted bolster and a device located axially between the drive wheels (4, 5) to generate a differential actio...	11/21/2006
7121567	Bicycle having front and rear rotative wheel frames with actuatable means for engaging and disengaging the rear wheel frame rotation A bicycle having a frame with pivotal front and rear wheels with means for engaging and disengaging said pivotal movement on one of the wheels by moving a pivotal strut to engage the rear wheel frame thereby preventing movement of the wheel frame. Moving the actuato...	10/17/2006
7073799	Asymmetrically steering rolling device The two skates steered by leaning sideways normally curve along circles of similar curvature. As the two circles are offset by the legs' distance they intersect. In order to avoid this disadvantage it is desirable that the outer leg's curved track has a larger radiu...	07/11/2006
7073806	Three-wheel rolling vehicle with front two-wheel steering A three-wheel rolling vehicle with front two-wheel steering comprising a frame (13), a handlebar (16), a rear wheel (12) rotating with respect to the frame (13) and a steering group which operates two front wheels (14, 15), in whic...	07/11/2006
7059990	Torque vectoring drive axle assembly A drive axle assembly includes first and second axleshafts connected to a pair of wheels and a drive mechanism operable to selectively couple a driven input shaft to one or both of the axleshafts. The drive mechanism includes a differential, a speed changing unit op...	06/13/2006
7055841	Tricycle and steering assembly In one embodiment of the present invention, a steering mechanism for a children's toy vehicle comprises a non-circular wheel piece connectable to a wheel turning mechanism of a toy vehicle. An arcuate front portion extends along the front periphery of the wheel piec...	06/06/2006
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. ...	05/23/2006
7044491	Tricycle A tricycle, including at least one frame, at least one front wheel, which is disposed in the front region of the frame, when viewed with respect to the preferred travel direction of the tricycle, and is steerable via a steering handle, and at least two rear wheels w...	05/16/2006
7025366	Two wheel steering bicycle with each wheel having its own steering control operated by rider's left and right hand respectively and rider positioned facing the direction of motion A two wheel steering bicycle with two steering controls and rider positioned facing forward. A top tube 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...	04/11/2006
7017922	Stroller with accessory bridge An accessory bridge, having a storage compartment, adapted to be secured to the upper portion of the handle of a stroller, above a so-called “parent console;” and a stroller including such an accessory bridge. The accessory bridge preferably is secured at its bo...	03/28/2006
7006901	Computerized automated dynamic control system for single-track vehicles Various methods, apparatuses, and systems in which a single-track vehicle has a retractable auxiliary-support wheel assembly and a computer control system. In an embodiment, the single-track vehicle has an elongated body. The retractable auxiliary-support wheel asse...	02/28/2006
6953203	Human powered vehicle A stable vehicle that can be folded or disassembled, for example for transportation by another vehicle or for storage, without requiring the use of hand tools. Two front wheels carried by steerable forks, in combination with an underslung main frame, provide a stabl...	10/11/2005
6817617	Tricycle In a tricycle in which left and right front forks (30L, 30R) for rotatably supporting left and right front wheels (WFL, WFR) respectively are disposed on laterally opposite sides of a handle post (21) to extend upwards and downwards and are turn...	11/16/2004
6685211	Trailer dolly A load-bearing trailer dolly which connects a tongue-type boat, utility or other trailer to a towing vehicle and bears weight from the trailer during towing. In a preferred embodiment, the trailer dolly is characterized by an axle mounted on a pair of whe...	02/03/2004
6672602	Gravity driven steerable vehicle A gravity driven steerable vehicle having wheels, or skis or a combination of wheels and skis for recreational use, most particularly on surfaces such as pavement, artificial hard-pack turf, mountain slopes, dirt roads, grass and hard-packed or non-packed...	01/06/2004
6663122	Stroller frame A stroller frame has a steering device, two front wheel support rods, and two front wheels. The steering device is disposed on the front wheel support rods. The steering device has a positioning device, a front base seat, a shock absorbing device, and a p...	12/16/2003
6598892	Two wheel steering bicycle with latitudinal aligned wheels A center support 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 a bicycle be...	07/29/2003
6554308	Recumbent vehicle & apparatus for forming same A recumbent vehicle including parallel paired recumbent bicycles operatively and reversibly joined by a bracing assembly having less than four brace members, is provided. The parallel paired recumbent bicycles are easily separable, without the need for to...	04/29/2003
6554087	Steering assembly for children's ride on vehicles A steering assembly for a children's ride-on vehicle having a pair of wheels. The assembly includes a pair of pivotal control arms that are coupled to the pair of wheels. The pair of pivotal control arms is also coupled to a pair of moveable handles that ...	04/29/2003
6402174	Recumbent tricycle with controlled wheel and body lean Three-wheeled vehicle with an adjustable leaning and steering mechanism, permitting operator-controlled wheel and body lean as the vehicle is making a turn. The vehicle (100) has a leaning main frame (20) that carries the pedals (21) and crank assembly (2...	06/11/2002
6378882	Human-powered exercise cycle An exercise cycle comprising a frame, a hinge, and a drive mechanism. The frame comprises a forward frame member and a rearward frame member. The hinge operatively connects the forward frame member to the rearward frame member such that the forward and re...	04/30/2002
6367824	Tricycle A tricycle includes left and right front wheel support members which rotatably support left and right front wheels, respectively, and which are disposed on laterally opposite sides of a handle post and pivotally supported on left and right leg members whi...	04/09/2002
6352274	Occupant propelled land vehicle A three-wheeled occupant propelled vehicle is described. A seat is centrally suspended on a longitudinal axis, so that by leaning from side to side, the occupant may impart a steering motion by way of linkages between the seat and the steered front wheels...	03/05/2002
6341790	Front wheel assembly for a skate vehicle A front wheel assembly for a skate vehicle includes a casing mounted on the frame of the skate vehicle and forms an acute angle with the horizontal portion of the frame. Two holes are defined in a bottom of the casing. A shaft rotatably extends through ea...	01/29/2002
6311994	Skateboard-like exerciser The present invention relates to a skateboard-like exerciser primarily comprising a blocking connecting rod interposed between a braking unit behind the deck and the main frame. When the blocking connecting rod is not touched first, the braking unit can't...	11/06/2001
6276700	Gravity driven steerable wheeled vehicle A gravity driven steerable wheeled vehicle for recreational use, most particularly on surfaces such as pavement, artificial hard-pack turf, mountain slopes, dirt roads, grass and hard-packed snow. The vehicle has at least three (3) but preferably four (4)...	08/21/2001
6263990	Auto-carriage An auto-carriage has a first frame and a second frame pivotally connected to the first frame so that both the front wheels and the rear wheels of the carriage are able to maintain engagement to the ground at all times. Furthermore, a pair of unidirectiona...	07/24/2001
6227555	Top-press steering device for a skateboard A top-press steering device for a skateboard primarily includes a front supporting bar. A height-adjustable handle in cooperation with an adjusting knob is inserted into the top of the front supporting bar. The front supporting bar is attached to a main f...	05/08/2001
6203043	Four-wheel, human powered cycle A semi-recumbent, human powered, four wheel cycle has an independent front suspension and wheels that are turned. A conventional bicycle chain drive drives one or both front wheels. The rear wheels are also driven in additional embodiments....	03/20/2001

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Class 280/267 - Two-wheel controlled