Abstract: A three-wheeled cycle includes a frame and first and second wheels, each rotatably mounted to the frame about substantially a horizontal axis and a vertical axis. A drive wheel is rotatably mounted to the frame about a horizontal axis. Pedal structure is provided for driving the drive wheel. Steering structure is provided for rotating the first and second wheels about their vertical axis. Structure can also be provided to automatically adjust the chamber of the first and second wheels into a turn.

Abstract: A chain-propelled vehicle is driven forward by pulling a spring-biased lever to which the chain is attached. The vehicle is steered by feet of an operator and has a steering-box geometry which imparts camber to a rear wheel when the vehicle negotiates a turn.

Abstract: A four wheel cycle has a seat on a pipe-formed body, two non-steerable front wheels with a foot pedal crank driving mechanism directly therebetween, and two steerable rear wheels with steering mechanism. The steering mechanism has a steering wheel on one end of a steering shaft a, steering arm across the other end of the steering shaft and a pair of steering connecting rods cross connecting the steering arm to the steerable rear wheels.

Abstract: A swingable skateboard includes a generally flat base board which has a somewhat upwardly curved tail end. The tail end of the board is equipped with a rubber cushion which serves as a brake device. A crank member includes a rotating shaft journalled on the leading end of the board, and a crank arm to which a front axle is secured. A handle assembly including two interconnecting handlebars and a steering column which is secured removably and coaxially to the rotating shaft of the crank member. The crank member may be fastened onto the board for preventing relative movement therebetween for use as a conventional skateboard. When the handlebars are rotated, the board can be swung.

Abstract: A two-wheeled, self-propelled and steerable vehicle especially designed for travel over varying terrain, including pavement, rough and rocky ground, under brush and areas dotted with water. The vehicle has a fore-and-aft body supported on front and rear wheels, both of which are steerable in unison in what may be termed articulated fashion as distinguished from so-called crab steering. Each of the wheels is steerable by a wheel mounting arrangement that eliminates the conventional fork and uses instead a split shaft and splined sleeve interconnection on which the wheel is journaled. Right and left links interconnect the sleeve respectively to proximate right and left fore-and-aft movable shaft carriers for controlling the position of the sleeve as the wheel is steered, thus increasing the range of steerability without increasing the width of the body within which the wheel is confined. Preferably, both wheels are powered by hydraulic motors.

Abstract: A steering wheel fixing construction for toy vehicles has front wheel support rod which projects beyond the upper surface of a toy body. A sleeve integral with a steering wheel is removably fitted on the projecting portion of the front wheel support rod. The portion of the upper surface of the toy body around the front wheel support rod has with a relatively narrow groove and a relatively wide groove. The sleeve has an engaging projection sized to snugly fit in the narrow groove. The engaging projection can be selectively positioned in the narrow groove or in the wide groove. If the projection is positioned in the narrow groove, the rotation of the steering wheel is inhibited. If the engaging projection if positioned in the wide groove, the rotation of the steering wheel is allowed.

Abstract: A four-wheel human powered vehicle including a frame for supporting the operator of the cycle in a substantially recumbent position, rear wheels mounted on the sides of the frame, two arms mounted on the frame and extending forwardly and outwardly therefrom, and each mounting a front wheel, steering means connected to the front wheels and controllable by the operator, and a crank boom extending forwardly from the frame and supporting a crank mounting foot pedals, and a drive attached thereto for transferring the power to one of the rear wheels.

Abstract: A handle lever steering device including a handle lever and a pair of knuckle arms pivotally supported by a frame and constituting the Ackermann mechanism has a rod end secured to a rotary shaft for supporting the handle lever and having a first support shaft and a second support shaft. The first support shaft is connected to a support shaft connected to an arm of one of the left and right knuckle arms, and the second support shaft is connected to a support shaft connected to an arm of the other knuckle arm. The first and second support shafts and the rotary shaft for supporting the handle lever are located on an imaginary straight line. The ratio of the distance Y.sub.l between the center of the rotary shaft for supporting the handle lever and the center of the first support shaft to the distance X.sub.

Abstract: A three wheeled vehicle with an elongated body and independent front and rear steering is provided. The vehicle is preferably a pedal driven three wheeled vehicle. The rear wheels are mounted on a rear wheel assembly which is pivotably mounted on the body and displaced by a control lever mounted on one side of the body.

Abstract: A three-wheeled vehicle having a front body member carrying the front wheel and seat, pivotally connected to a rear body member carrying the rear wheels and handlebar. The pivotal connection is designed to pivot the front body member around a pivotal axis that is projected upwardly and rearwardly at a location rearward of the front wheel whereby pivoting produces sideward and rearward tilting of the front wheel and opposite turning of the rear wheels. Steering is achieved by such pivoting of the front body member which in turn is achieved by a sideward swinging of the seat that is positioned between the two pivotal connections. The rear wheels are preferably canted to provide increased stability for the vehicle as it is maneuvered through a turn.

Abstract: A recumbent vehicle comprising a single, bowed tubular member forming a main frame having a front end and a rear end. A rear wheel fork assembly is mounted toward the rear end of the main frame with a rear wheel rotatably mounted in the rear wheel fork assembly. A crank assembly, including crank pedals, is mounted to the front end of the main frame. The crank assembly is adjustable to alter the distance of the crank pedals from the front end. A pair of front steering wheels is rotatably mounted toward the front end of the main frame, rearwardly of the crank assembly. A body seat, substantially conforming, throughout its length, to the bowed shape of a portion of the main frame generally intermediate the front steering wheels and the rear wheel, is mounted in alignment with said portion of the main frame.

Abstract: A three-wheeled vehicle steering and suspension system including two support assemblies for two opposed front wheels pivotably mounted at opposite sides of the vehicle frame and operatively connected by a hydraulic cylinder arrangement actuated by the vehicle steering linkage for inducing opposed pivotal movement of the support assemblies during vehicle turning to cause leaning of the vehicle in the direction of turning. A biasing arrangement provides the operative connection between the hydraulic cylinder and the support assemblies for transmitting lean-actuating reciprocatory movement of the hydraulic cylinder to the support assemblies while yieldably permitting independent pivotal movements thereof.

Abstract: A bicycle comprises front and rear wheel assemblies which are independently steerable. The rear wheel assembly includes a pedal crank which is mounted on the axle of the rear tire. A rear fork holds the rear axle and includes a shaft which is rotatably coupled to a rear portion of the bicycle frame. A saddle is mounted to the top of the shaft of the rear fork. Turning the saddle and/or the pedal crank laterally rotates the rear wheel assembly independently of the front wheel assembly. The front wheel assembly similarly includes a fork which holds the axle of the front tire. A shaft portion of the fork is rotatably coupled to a front portion of the bicycle frame and is coupled to a handlebar. Turning the handlebar rotates the front wheel assembly independently of the rear wheel assembly.

Abstract: An amusement tricycle wherein the operator is transported in an inclining position on a hammock cradle. the cradle is carried by a front wheel which does not pivot relative to the cradle. The cradle and wheel rotate about a downwardly sloping axis to turn. The cradle is supported to the rear by a two wheel buggy. The cradle is mounted on the buggy by a pivot. The pivot rotates about the axis. The buggy in turn, is stabilized by pivotal attachment to the cradle.

Abstract: A human powered vehicle of the pedal-driven type having three or more wheels, a frame and seat for supporting one or more riders in a generally supine position, and a streamlined shell enclosure with a transparent canopy which is openable for entry and egress of the rider. The preferred embodiment for a single rider has two steerable wheels located forward of the rider at approximately the widest part of the streamlined shell, and a single fixed drive wheel centrally positioned behind the rider. The drive wheel is equipped with a multi-sprocket gearing arrangement, and a large pedal-equipped sprocket wheel is mounted in a position slightly forward and above the common axis of the front wheels for ready engagement by the rider's feet. A single drive chain extends from the drive sprocket to the sprocket cluster and passes around idler rollers which direct the chain beneath the rider.

Abstract: A wheeled vehicle includes a vehicle frame having at least one wheel at one end of the frame and a hinged parallelogram frame mounted on the other end of the vehicle frame and having a pair of spaced wheels mounted on opposite sides thereof. The parallelogram frame will pivot laterally in first or second opposite lateral directions when the frame leans laterally away from a position of equilibrium in the first or second lateral direction. A sensing device is connected to the vehicle frame and a power source is connected to the sensing means and parallelogram frame whereby initial leaning movement of the parallelogram frame in one direction (caused by conditions of unequilibrium) will cause the sensing device and power source to pivot the parallelogram frame in the opposite direction thereby to laterally pivot the vehicle frame to a position of equilibrium.

Abstract: An amusement and exercising vehicle for physically handicapped persons is driven by a motor. Operational movement of the drive mechanism is translated into reciprocal movement of the foot pedals. The foot pedals are provided with orthopedic braces for supporting the legs of the driver whereby the legs are supported for exercising movement by the motor during movement of the vehicle. In a second embodiment, the vehicle is further provided with a motorized drive mechanism to permit operation of the drive mechanism and the corresponding reciprocal movement of the foot pedals by persons unable to achieve such movement independently. In a third embodiment, the vehicle includes a mechanism for preventing the transmission of power from the motorized drive mechanism to a foot support when reciprocal movement of the foot support is hindered by the leg of the occupant.

Abstract: A rear driving wheel for a pedal car consists of a ground-engaging portion formed from a plurality of freely rotatable rollers projecting through the circumferential portion of the wheel hub and positioned such that their axes of rotation are at right angles to the axis of rotation of the hub.

Abstract: A vehicle powered to move about on a front drive wheel and rearward supports, preferably a pair of wheels. The rear wheels are mounted to the frame by a steering control mechanism that facilitates pivotal steering movement of the rear wheels about two axes - a steering axis and a steering control axis. The steering control axis is coaxial with the rear wheels and is perpendicular to the steering axis. The angle of the steering axis may be varied about the steering control axis. Steering is accomplished by the rider shifting his weight from one side of the vehicle to the other. He may shift the steering axis to a position substantially parallel with the ground surface so the frame may be tilted like a bicycle in wide, sweeping high speed curves. The rear wheels then track behind the front wheels as the frame tilts about the steering axis. If the rider shifts the steering axis to a position nearly perpendicular to the ground, he may negotiate short radius, low speed turns.

Abstract: A wheeled vehicle powered by its rider to move about on three wheels. It includes a single front wheel and preferably a pair of rear wheels mounted to an elongated frame. The rear wheels are mounted to the frame by a carriage assembly that facilitates pivotal movement of the rear wheels about two axes. The first axis is a steering axis and the second is a steering control axis. The angle of the steering axis may be varied about the steering control axis. Through this arrangement, the rider is able to selectively control the steering response of the vehicle. If he shifts the steering axis to a position parallel with the ground surface he may maneuver the vehicle in wide sweeping high speed curves by leaning as does a bicyclist. The rear wheels merely track behind the front wheel and the frame tilts about the steering axis. If the rider shifts the steering axis to a position nearly perpendicular to the ground, he may negotiate short radius low speed turns.

Abstract: A three wheeled vehicle with a pair of steerable front wheels mounted to turn on a kingpin which is inclined forwardly and upwardly. The front wheel axis is offset ahead of the kingpin. The frame tilts in the direction of turning and the vehicle may be steered either by turning the front wheels or by leaning to tilt the frame. The vehicle is driven by a single rear wheel. In one form, the vehicle has a load carrier on the frame which tilts in a turn. In another form, the load carrier is connected with the kingpin and front wheels, remaining level in a turn. The frame has an intermediate joint so that one rear portion may be assembled with different types of front portions.

Abstract: A rear steering three-wheeled toy vehicle includes a frame which is propelled by a pedal-driven front wheel assembly rotatably mounted on the leading end of the frame.A rear steering assembly having a pair of rear wheels is pivotally mounted at the trailing end of the frame for turning movement about an inclined pivot pin. Lever controls are operatively connected to the rear assembly for turning the same in requisite direction about the pivot axis. A stabilizing arrangement reinforces the pivot connection formed by the pivot pin intermediate the rear assembly and the frame. This arrangement includes a support member, opposite ends which are detachably connected to the frame and to one end of the pivot pin. The arrangement also includes a support rod, opposite ends of which are detachably connected to the rear assembly and to the opposite end of the pivot pin.

Abstract: A dirigible vehicle which is supported upon at least three ground engaging wheels located about the lower periphery of the device. Two of the three wheels are steerable while the third is fixed in position with its axis perpendicular to a line interconnecting the two steerable wheels. By manipulation of the steerable wheels, the vehicle may be adapted for movement along a linear path or may be made to spin about its own axis. Intermediate positioning of the steerable wheels will cause the vehicle to sweep in large circular arcs. The device may be self-propelled by a foot pedal assembly or by a small motor, with either a single steering wheel or dual independent steering controls. The unique steering capabilities of the vehicle make it ideally suited for recreational purposes or wherever extreme maneuverability is required.

Abstract: An operator propelled toy vehicle having a frame supported on front and rear pairs of rotatable wheels. The axle for the front pair of wheels is pivotally mounted to the frame. A seat for supporting the rider is mounted on the rearward end of the frame and a compartment for receiving dispensable objects is mounted on the pivotable front axle of the frame. The compartment has a top hinged door providing access to the interior thereof. A handle bar also is mounted on top of the compartment for grasping by the rider to steer the vehicle. A coin receiver is provided on the compartment adjacent the handle bar to facilitate the process of selling the dispensable objects.