Abstract: A pedal-powered golf cart includes a pair of pedal assemblies disposed to drive the input shaft of a transmission, the transmission provides at least two output gear ratios at a drive shaft operatively connected to a gear box adapted to rotate a pair of driving wheels. The golf cart further includes a storage compartment and means for supporting at least one golf bag thereupon. The seats are separately adjustable with respect to each of the pedal assemblies.

Abstract: A toy in the form of a tracked vehicle containing a pair of tracks which turn in a manner which simulates a full-sized tracked vehicle, the vehicle having a supporting frame, a tricycle device mounted on the frame, the tricycle device having a pedal actuated drive wheel mounted at the forward end of the frame and a pair of auxiliary wheels in parallel relationship to each other mounted at the opposite end of the frame, a steering device connected to the drive wheel for turning the tricycle device in any direction thereby controlling the direction of the tracked vehicle, and idler devices mounted on the frame associated with each auxiliary wheel and positioned forward of the auxiliary wheels, each of the tracks being affixed respectively to one of the auxiliary wheels and the associated idler devices to allow for track movement in response to movement of the auxiliary wheels, the idler devices being positioned to maintain the tracks out of contact with the riding surface of the vehicle at the forward end of th

Abstract: A vehicle for the disabled comprising a wheel-chair with seat and back-rest, on the chassis of which two coaxial rear wheels and at least one front wheel are mounted, a cycle frame arranged behind the wheel-chair with a drive wheel drivable by means of pedals, a saddle and coupling device, mounted pivotably on a steering bearing of the cycle frame about a substantially vertical pivot axis, for the detachable connection of the wheel-chair with the cycle frame, the coupling device having at least one cross-member extending transversely of the longitudinal axis of the cycle frame, which cross-member is securable to the wheel-chair chassis through two coupling elements spaced from one another in the transverse direction and supports the forward end of the cycle frame on the chassis of the wheel-chair, is characterized in that the steering bearing (35) carrying the coupling device is connected with the cycle frame (2) through a joint (42) with substantially horizontal pivot axis but otherwise substantially rigidly

Abstract: A three-wheel vehicle having front and rear frame sections supporting a single front wheel and a pair of rear wheels respectively. The frame sections are pivotally interconnected about an inclined axis defined by a front lower and rear upper pivotal connection. The upper pivotal connection is provided on a swivel bar which is pivotally connected to the rear frame section for swivel pivoting of the pivotal connection defining the inclined axis. A seat on the front frame section positioned substantially above the swiveled pivotal connection is shifted from side-to-side with the pivoting of the swivel bar and inclined axis. A handle from the swivel bar enables a rider to control the swivel bar for shifting of the rider's weight and increased or decreased articulation of the vehicle frame and thus turning of the vehicle to thereby increase or decrease the turning that is induced by pivoting of the front frame section about the inclined axis.

Abstract: A foldable pedicab has a foldable assembly which includes a main frame, two back frames mounted rotatably on the main frame, two seat frames mounted rotatably on the back frames respectively, two armrest members mounted rotatably on the back frames respectively, and two footrests mounted rotatably on the main frame. The seat frames are locked releasably on the main frame. The armrest frames are locked releasably on the seat frames. A swing wheel is mounted removably on leading end of the foldable assembly. Two main wheels are mounted removably on opposite sides of the foldable assembly. If necessary, a driving wheel assembly may be mounted removably on tail end of the foldable assembly so that the pedicab can be drived by a person riding on the driving wheel assembly. In absence of the driving wheel, the pedicab can form a hand-pushable wheelchair.

Abstract: A non-motorized cart for carrying a rider who supplies propelling energy for the cart, including: a frame having an H-shaped form, a front end and a rear end; two front wheels and two rear wheels; a crank mechanism connected to the rear wheels for rotating the rear wheels in response to energy supplied by the rider; front wheel support members connecting the front wheels to the front end of the frame for pivotal movement in order to steer the cart; and a steering mechanism for steering the front wheels, including a steering lever pivotally mounted to the frame and having control members located to be engaged by the feet of the rider, and steering rods connected between the steering lever and the front wheel support members for pivoting the front wheels in response to pivoting movement of the steering lever.

Abstract: A non-motorized tricycle including: a frame having a seat for supporting a rider; a front wheel and two rear wheels; a steering member pivotably supported by the frame and supporting the front wheel; and a crank drive mechanism for rotating the rear wheels and propelling the tricycle, the crank drive mechanism including: a pedal crank rotatably supported by the frame and having crank portions and pedals engageable by the feet of the rider; a bracket secured to, and extending downwardly from, the frame; a auxiliary crank member rotatably mounted in the bracket and having two first crank portions and two second crank portions; a rear axle rotatably mounted to the frame and secured to the rear wheels, the rear axle having two crank portions; two main crank rods articulated between the crank portions of the axle and the first crank portions of the auxiliary crank member; and two auxiliary crank rods articulated between the second crank portions of the auxiliary crank member and the pedal crank; the crank drive me

Abstract: A multi-wheeled cycle comprising a frame, a main wheel, and at least one auxiliary wheel secured for rotation at one end of the frame forwardly or rearwardly of the main wheel, and a spaced-apart pair of auxiliary wheels secured for rotation at the other end of the frame rearwardly or forwardly of the main wheel. The main wheel is held for rotation to the mid-portion of the frame and includes a conventional crank and pedal assembly for foot rotation of the main wheel while the user is seated atop the cycle. The bottom of the main wheel lies below the plane defined by the bottoms of the auxiliary wheels to facilitate unique maneuvering and operation. The main wheel may also be pivotable about a vertical axis passing through it. All axes of rotation of the wheels are generally horizontal.

Abstract: A tricycle having two front steering wheels and a rear drive wheel has a frame for accommodating the rear wheel and a mount pivotally connected to the front of the frame carrying a pair of front steering wheels. Handle bars are connected with a tie-rod assembly to the supporting forks for the front steering wheels. The mount has a parallel linkage which allows the frame and the front wheels to bank to facilitate the turning of the tricycle. A basket is suspended below the mount between the front wheels. A lock connected to the beams holds the beams in fixed relation relative to each other. The lock can be released to limit the angle of the bank of the tricycle.

Abstract: A vehicle which may be three-wheeled or four-wheeled, for instance, a buggy comprises a front wheel and a wishbone suspension for supporting the front wheel and a power unit. The body frame comprises a left subframe, a right subframe of essentially quadrilateral configuration, each subframe having an upper side, a front side, a lower side and a rear side. A reinforcing bar connects the front side and the lower side. The subframes form a first loop. The reinforcing bar forms a second loop with the upper side, the rear side, the front side and the lower side. The second loop is within the first loop. The first loop supports the front wheel wishbone suspension and the second loop supports the power unit. The front side has an upper portion and a lower portion and the lower side has a forward portion and a rear portion and the second loop is formed by the upper side, the upper portion of the front side, the rear portion of the lower side and the rear side.

Abstract: A human powered wheeled land vehicle is disclosed. The vehicle may utilize two or more wheels, including at least one driving wheel and one steering wheel. The vehicle is propelled by use of at least one lever which is positioned such that the operator is able to grasp the lever and move it back and forth perpendicularly to his body in a reciprocating fashion. A drivetrain mechanism translates the reciprocating motion of the lever into rotational motion of the driving wheel. Two levers may preferably be provided so as to allow the operator to provide alternating motion of the levers. A steering handle is provided on at least one of the levers to control the direction of the steering wheel. The operator may preferably be secured to a seat, the seat also having a back rest, while operating the vehicle. The invention has particular application for use as a racing or touring wheelchair when operated by a paraplegic or a lower-limb amputee.

Abstract: A driving device for bicycle comprising a pedal system having a left and a right pedal which repeat reciprocating motion and a hub section provided with a left and a right driving force transmission mechanism for transmitting the treading force applied to each pedal to the driving wheel independently, the aforesaid driving force transmission mechanism transmits the forward torque imparted through the pedal to the driving wheel but does not transmit the rearward torque and is provided with a clutch mechanism for disconnecting the connection between the driving wheel and the pedal when the driving wheel reverses as the bicycle is moved back. When the pedals are treaded for reciprocating motion, the driving wheel is rotated in the forward sense to move the bicycle forward and even when the left and right pedals are interlocked so that they can be treaded alternately, reversing the driving wheel is feasible so that the bicycle can be also moved back.

Abstract: A four-wheel drive vehicle having straddle-type seating. A power train is located beneath the seat and between the footpegs of the vehicle, the engine employs parallel output shafts located on either side of the crankshaft to drive power transmission means to the front and rear axles. A speed change mechanism is contained within the engine case along with the output shafts and includes a first transmission shaft between the crankshaft and one of the output shafts. The arrangement of the frame is such that the upper portion of the frame is narrower than the lower portion of the frame for appropriate rider comfort and footpeg location. The wheels are located such that the front and rear tracks are substantially the same and diagonals between the wheel centers cross close to the center of gravity of the vehicle. The cushion assemblies of the vehicle are inclined to increase cushion stroke and the steering assembly is arranged with crossing tie bars for maximum steering control with minimum mechanical complexity.

Abstract: A convertible wheeled vehicle which is capable of assembly into any one of a plurality of different vehicles includes a front wheel frame assembly. A wheel is mounted to the front wheel frame assembly. A chassis assembly has at least one wheel. A pair of vertically spaced plates extends from the front wheel assembly and a tubular connector associated with the chassis assembly is disposed therebetween. A pin extends between the plates and through the tubular connector for securing the chassis in any one of a plurality of orientations.

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 front wheel suspension for a motor vehicle including a vehicle frame having a pair of upper frames which are spaced transversely and extend longitudinally and a pair of lower frames which are spaced transversely and extend longitudinally, each of the upper frames having a downward portion extending from a front portion thereof and having a lower end fixed to one of the lower frames, front and rear wheels rotatably disposed on front and rear portions of the vehicle frame, a rider's saddle disposed on the upper frames, and footsteps supported on the lower frames.

Abstract: A new and unique wheeled vehicle comprising a unicycle-like device. The device employs the same general elements as a unicycle including a single large drive wheel, a pair of pedals, a seat, and a pair of forks to support the seat. Attached to the rear of the device is an additional set of support wheels. The support wheels are attached through a support frame which extends generally rearwardly and downwardly from the center of the drive wheel. The support wheels are attached to one another by an axle, which is in turn attached to the support frame in such a manner that the support wheels pronate and track through turns as the drive wheel is turned to the right or left. Under normal conditions the support wheels remain on the ground at all times. This device provides the rider with additional longitudinal stability without adding a significant increment of lateral stability.

Abstract: A tricycle which is capable of being converted either to a traditional high position in which a rider is seated relatively high on the frame, or to a low slung position in which the frame is inverted so that a rider is seated relatively low on the frame. To invert the frame, the a front fork and handlebar are removable from the head tube of the tricycle and invertible relative to the frame and the seat is adjustable between a high and low position corresponding to the high and low slung tricycle positions. A rear deck is attached to a rear portion of the main tube and is tubular in shape so that it fully and protects encloses the rear axle of the tricycle in both the high and the low frame positions. A seat is mounted on the frame and is capable of forward and rearward adjustment as well as upward and downward adjustment.

Abstract: A wheel chair including a frame, at least three wheels, a drive mechanism and a single lever control mechanism. The drive mechanism includes a prime mover mechanism and a selective engagement mechanism. The frame is supported by the wheels. The single lever control mechanism is connected to the selective engagement mechanism. The selective engagement mechanism is connected to the prime mover mechanism. The selective engagement mechanism is adapted to selectively transfer power from the prime mover mechanism into forward and reverse movement of at least one of the wheels of the wheel chair.

Abstract: A pedal drive for a tricycle having a single driven rear wheel and two steerable front wheels. There are a pair of matched, laterally spaced sprockets mounted on a transverse shaft and a pair of matched, laterally sprockets rotatably mounted forwardly of the sprockets on said shaft. Each of the forward sprockets is aligned in a common plane with a corresponding sprocket on the transverse shaft. An endless chain extends about each pair of corresponding sprockets. Two elongate arm members, each with a foot pedal mounted on its bottom end, are pivotally mounted on a frame member of the tricycle. Two connecting links join the arm members to the endless chains. A third endless chain transmits power via a third sprocket on the transverse shaft to the rear wheel. The preferred tricycle is tiltable in order that it can maneuver corners quickly. Spring means are provided to bias the tricycle towards a desired tilting or non-tilting position.

Abstract: A velocipede has a divided frame with a lower frame half and an upper frame half forming on its upper surface a centrally disposed seat surface or saddle (2), a front leg (5) having one front wheel (4) on its lower end and supported for turning movement with respect to the frame so as to change the direction of the front wheel, a handle shaft (6) fixedly connected to the front leg and having a handle (7) at its upper end, and a rear leg (11) extending rearwardly and downwardly from the frame. Two rear wheels (12) are attached to the rear leg or legs. The saddle-shaped upper frame half (15) and the lower frame half (14 ) are separately prepared so that any one of a plurality of saddle shaped upper frame halves may be combined with a single lower frame half for modifying the appearance. The upper half is journalled at its front end to the lower half by a pivot pin (25) extending widthwise of the velocipede to provide a clearance between the upper and lower halves.

Abstract: A vehicle frame construction in a buggy with a riding saddle, includes a main frame extending longitudinally along a central axis of the buggy, the main frame having front and rear ends, and a pair of down tubes disposed one on each side of the main frame and having one ends fixed to sides of the front end of the main frame and opposite ends fixed to sides of the rear end of the main frame. Each of the down tubes is composed of a downwardly directed portion extending downwardly from the front end of the main frame and in a forward direction of the buggy, a horizontal portion extending substantially horizontally from the downwardly directed portion in a rearward direction of the buggy, and an upwardly directed portion extending substantially vertically upwardly from the horizontal portion to the rear end of the main frame.

Abstract: A knock-down tricycle has its main structural parts made of stamped metal or molded components which are relatively inexpensive to fabricate and which, when disassembled, occupy a minimum volume allowing the tricycle to be shipped in a knocked-down condition in a minimum size package. The various components of the tricycle can be assembled easily using simple tools and, when assembled, they form a tricycle which is unusually strong and sturdy.

Abstract: A four-wheel drive vehicle of the type wherein the rider straddles the vehicle. The frame includes an upper frame structure which extends outwardly and downwardly to widely-based supports for the front axle while maintaining a narrow profile at the upper portion thereof. The lower frame structure extends rearwardly from a front axle support structure inwardly of the upper frame structure. As the upper frame structure converges, the lower frame structure extends laterally outwardly of the upper frame structure. Broad support for the front axle is provided by the upper frame structure while broad support for the engine and footpegs is provided by the lower frame structure.

Abstract: A self-propelled wheeled wagon having cargo and seat sections. The user transmits a reciprocating movement, through a propelling mechanism, to the on of the rear wheel. The steering is achieved by directly moving the pivoting front wheels axle with the user's feet. The front wheels axle is provided with an axle stopper mechanism that prevents the axle from moving beyond a predetermined angle thereby minimizing the probability of injuring the user.

Abstract: An air intake passage formed inside a main pipe which constitutes a portion of a body frame of a vehicle. An air chamber which provides communication between the air intake passage and an air cleaner is formed by utilizing the inside of a gusset which is provided to reinforce the connection between the main pipe and a pair of center pipes extending rearwardly from the main pipe on the right and left sides, respectively.

Abstract: Perfected tricycle comprising a frame made of hollow, plastic tubular elements. The frame comprises a first tube supporting a saddle in the middle, two rear tubular arms each supporting a rear wheel and a second tube at the front supporting a gear at the top and a front wheel at the bottom the hub of which is fitted with two pedals.

Abstract: A four wheel off the road vehicle having a pair of dirigibly supported front wheels each carrying a respective brake. The front wheels are steered by a centrally journaled steering shaft that carries a handlebar at its upper end with a brake actuator. A brake equalizing device is disposed adjacent the longitudinal center line of the vehicle adjacent the steering shaft and transmits braking forces from the brake actuator to the front wheel brakes.

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 pedicab with a relatively short turning radius includes a front frame with handle bars on the front end thereof, pedals and a drive sprocket in bearings beneath the handle bars, a driver's seat on the top rear end of the frame and a three-speed hub and driven sprocket on the rear bottom of the frame substantially vertically aligned with the seat, the drive and driven sprockets being connected by an endless chain. A two-wheeled cab is pivotally connected to the rear end of the front frame.

Abstract: A tricycle which is capable of being converted either to a traditional high position in which a rider is seated relatively high on the frame, or to a low slung position in which the frame is inverted so that a rider is seated relatively low on the frame. To invert the frame, a front fork and handlebar are removable from the head tube of the tricycle and invertible relative to the frame and the seat is adjustable between a high and low position corresponding to the high and low slung tricycle positions. A rear deck is attached to a rear portion of the main tube and is tubular in shape so that it fully protects and encloses the rear axle of the tricycle in both the high and the low frame positions. A seat is mounted on the frame and is capable of forward and rearward adjustment as well as upward and downward adjustment.

Abstract: An articulated tricycle of the swingable type employing a front body and a rear body, the front body having a front wheel and a rear body having two rear wheels mounted on an axle or axles. The rear body includes a first body member and a second body member. The first body member is pivoted about a longitudinal axis to the front body while the second body member is pivotally mounted about a transverse axis to the first body member. The second body member includes mounting for the rear wheels. The second body member may be divided into two links to provide independent rear suspension for the wheels. A gear train extends between an engine, located in the first body member, and the rear axle or axles. This gear train is shown to include a chain or belt drive and may include two such chains or belts when the second body member employs two links.

Abstract: A three-wheeled scooter type of vehicle which is forwardly propelled by the body movement of the occupant by means of two rearwardly extending foot support frames which are pivotally connected to a front steering column. The foot support frames are provided with caster wheels which are yieldably tensioned to propel the vehicle in a direction of forward travel when the foot support frames are laterally moved.

Abstract: A new and unique saddle-riding type motorcar having four wheels comprising two front wheels and two rear wheels, wherein each of the front and rear wheels has a balloon tire mounted thereon and only the front wheels are rotatably supported on axles in such a manner as to turn in both directions relative to the longitudinal axis of the motorcar and the latter is steered by steering the front wheels by means of a bar handle constituting a steering mechanism.

Abstract: The vehicle has a three wheel, triangular wheelbase and a pyramid-shaped frame formed of four tubular side members and an inclined tubular steering fork supported rotatively by the side members adjacent its upper and lower ends. Handle bars located generally above the rear wheels rotate the steering fork to turn a front wheel located adjacent the front corner of the frame for steering the vehicle. Two spaced apart rear wheels are mounted for rotation about a common axis adjacent the rear corners of the frame. A platform for supporting a rider is mounted by the frame between the rear wheels, and forms a support surface so constructed and arranged with respect to the handle bars and rear wheels that the vehicle may be tilted onto two of its three wheels at a time, and then may be balanced in that position so as to perform a "wheelie" or similar maneuver, merely by concentrating or shifting the weight of the rider on the support surface and applying fore, aft or lateral balancing forces to the handle bars.

Abstract: A rear steered vehicle with improved handling and stability described by having a single front driven wheel and a pair of steered rear wheels. Cornering ability is improved while maintaining a narrow overall width by allowing the rider, front wheel, and frame to lean "into" turns thereby shifting the vehicle's center of gravity to the inside of a turn. Stability at all speeds is improved over other rear steered vehicles by the steering design which rotates the two rear wheels on separate steering axes and the lack of mechanical connection between "leaning" and "steering." This allows the correct ratio of steering and leaning at all speeds. In practice, the rider will "lean" into a turn at any speed and the rear steering geometry will react to the weight transfer and steer the correct amount to maintain stability without additional input from the rider.

Abstract: This invention provides a tricycle having a simple frame that is shaped to provide an efficient low profile, lever actuation, which is adapted to be hand-operated for enjoyable, interesting and efficient training purposes, including efficient propulsion, and interesting and enjoyable arm-hand training and coordination. The frame also has low profile steering from a sitting or leg-outstretched position, which is comfortable, provides a low center of gravity and enhances the efficiency, enjoyment, training and coordination provided by the hand-operation. Still further, the frame is shaped to provide a strong, simple and effective coupling system for connecting more than one tricycle in a train for purposes of education, enjoyment, efficiency, training and coordination.

Abstract: This invention relates to a roller bicycle having rollers rotably mounted on the front wheel shaft and a single rear wheel for a common use as a sporting and playing apparatus on which one can ride forward and backward by keeping his balance, thereby improving his agility and developing his physical strength.

Abstract: A two-wheeled vehicle comprising a vehicular body inclusive structure having the center of gravity thereof deviated in either transverse direction from the vehicle center line, a steering system inclusive structure transversely turnably connected with the vehicular body inclusive structure, and front and rear wheels supported by the vehicular body and steering system inclusive structures, respectively.Either one or both of the front and rear wheels are offset with respect to the vehicle center line, in the opposite transverse direction and in the same transverse direction as the center of gravity of the vehicular body inclusive structure, respectively. In this manner, the vehicle is permitted to travel in a straight course with a substantially upright position.

Abstract: A recumbent tricycle including a frame, twin rear wheels pivotally mounted to the frame and steerable by a pair of levers pivotally mounted to the frame on either side of a passenger seat. The rear wheels are oriented substantially vertically and are attached to hubs inclined inwardly toward the frame to create a cambered effect which maintains the rear wheels in a forward-facing position as the tricycle moves in a rectilinear path. The single front wheel is preferably driven by a pedal crank assembly mounted rearwardly of the front wheel and forwardly of the passenger seat.

Abstract: This invention relates to a four-wheeled vehicle intended to be driven as a moped. The vehicle chassis consists of a frame, with four wheels placed in a rhombus pattern. It includes a back drive wheel whose axle is carried by a frame and a front steering wheel whose axle is carried in a fork which is guided in a tube of the frame and which is solid with a handlebar. The steering wheel and fork, like the frame, is centered in relation to the plane of symmetry of the vehicle. The vehicle includes two side stabilizing wheels.

Abstract: A parking lock system for a three-wheeled vehicle having front and rear vehicle bodies interconnected so as to be capable of rolling relative to each other. The parking lock system comprises a first engagement member mounted on one of the vehicle bodies so as to be rollable substantially integrally therewith, and a second engagement member provided for the other of the vehicle bodies so as to be rollable substantially integrally therewith and engageable with the first engagement member in at least one predetermined relative position only, such engagement serving to lock the relative rolling. The system also includes a wheel lock mechanism for locking the rotation of at least one road wheel of the vehicle, a cable member adapted to be pulled to actuate both the second engagement member and the wheel lock mechanism; and an engagement assuring mechanism for assuring the engagement between the first and second engagement members while the cable member is pulled.

Abstract: A front suspension of a light vehicle having a single front wheel supported on one side thereof with a single supporting member and offset to one side of the center line of the vehicle.In this manner, the inclining tendency of the vehicle is reduced and the rectilinear travel of the vehicle is maintained, notwithstanding the imbalanced weight of the steering structure resulting from supporting the front wheel on one side thereof through a single support system.

Abstract: An articulated tricycle of the swingable type employing a front body and a rear body, the front body having a front wheel and the rear body having two rear wheels mounted on an axle. The rear body includes a first body member and a second body member. The first body member is pivoted about a transverse axis to the front body while the second body member is pivotally mounted about a longitudinal axis to the first body member. The second body member includes mounting for the rear wheels. A gear train extends between an engine, located in the front body, and the rear axle. This gear train may pass through either the first body member or second body member and includes a chain drive. Either the drive sprocket or the driven sprocket is positioned about a constant velocity universal joint which is in turn positioned about a transverse shaft or the transverse rear axle.

Abstract: A three-wheeled vehicle in which the frame of a two-wheeled vehicle is pivotally interconnected with an assembly comprising two laterally positioned, steerable front wheels. In addition to causing the front wheels to turn, the rotational movement of the steering shaft having an integrally constructed spiral track simultaneously causes the frame to tilt by utilizing one end of an arm pivotally connected to the front wheel axle and the other end pivotally connected to tracking means for following the rotatable spiral track.

Abstract: The present invention entails a three-wheel vehicle having a main frame structure, a front wheel, a pair of laterally spaced steerable rear wheels, and a seat disposed intermediately between said front and rear wheels. A jack shaft is rotatively mounted rearwardly of the front wheel and is driven by a pedal assembly having a drive shaft rotatively journaled transversely about the axis of the front wheel. Operatively associated with the jack shaft is a multi-speed chain drive that is drivingly interconnected between the pedal assembly and the jack shaft. The jack shaft further includes an output end or side that drivingly connects to the front wheel. Consequently, it is appreciated that torque is transferred from the pedals through a multi-speed chain drive to the rearwardly disposed jack shaft and the torque associated with the output side of the jack shaft is transferred back to the front wheel for driving the same.

Abstract: Human-powered, front-wheel drive tricycle of a 2DS-1IS (2 driven, steerable-1 independent suspension) format having two steerable front wheels in a fully engineered front end, a multi-triangulated space frame and a single trailing rear wheel mounted in an independent swing-arm type suspension. A chain drive system (21+speeds) includes a crank assembly mounted on a prow ahead of the front wheels driving a transfer gear and differential to the split front axle. A transfer gear caliper/disc braking system ahead of the differential provides braking force equally distributed to both front wheels regardless of road conditions, resulting in anti-skid properties. Track/wheelbase ratios above 0.45 provide stability and excellent handling; FWD provides excellent traction. Preferably, all wheels are of the same 20" diameter. Rider is in a semi-recumbent, supine position with handlebars, having shift and braking controls, mounted beneath a rigid seat. Shoulder harness and seat belt system are provided.

Abstract: A rear suspension system for a motor-tricycle has a frame, a seat and a pair of rear wheels mounted on opposite ends of a rear axle. An integral engine unit includes an engine with a power train connected to the engine, for transmitting the output power of the engine to the rear axle. The rear end of the engine unit supports the rear axle. The engine unit and rear axle assembly is pivotally coupled to the frame via an elastic means, to enable the axle to swing up or down relatively to the frame. Thus, the deformation of the elastic means makes the frame slightly tiltable in the direction perpendicular to its longitudinal axis. A shifting of a rider's weight, while making a turn at a curve, is facilitated, since the frame is made tiltable relatively to the engine unit. Further, since an exhaust silencer or muffler is positioned between rear shock absorbers or cushion units, the safety is improved.

Abstract: A three-wheeled cambering vehicle having a platform for supporting the vehicle operator and having a pair of laterally spaced rear wheels mounted thereon. The vehicle has a centralized tubular frame with a front leg member that supports a steerable front fork and wheel assembly and a rearward seat for the vehicle operator. A lower leg of the frame is supported for turning movement with respect to a longitudinal roll axis by the platform which permits the frame and front fork and wheel assembly to be cambered by the vehicle operator as the platform remains in a predetermined plane with respect to the support surface.

Abstract: 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 rotatably mounted on either side near the front of the frame. A rear fork, wheel and axle assembly is mounted at the rear center of the frame which is rotatable and laterally pivotable for turning the vehicle. Steering means are provided for rotating the fork and pivoting the fork laterally in a direction opposite the direction of turning the vehicle. Preferred drive means provide two wheel positive forward drive and pedal actuated independent dual braking.