Abstract: A head and neck restraining system includes a helmet, a neck brace structure, and a tether system. The neck brace structure includes a neck extension that is attached to shoulder extensions. The tether system includes at least one ring structure that is configured to attach to the helmet and a single tether material that slides through the at least one ring. The single tether material is guided along the neck extension and attached to the shoulder extensions. The at least one ring structure is positioned between the neck and shoulder extensions along the single tether material and splits the load on the helmet to the neck extension and the shoulder extension along to the single tether material created by exerted forces.

Abstract: A head and neck restraining system is disclosed herein. The system includes a helmet, a neck brace structure, and a tether system. The neck brace structure includes a neck extension that is attached to shoulder extensions. The tether system includes at least one ring structure that is configured to attach to the helmet and a single tether material that slides through the at least one ring. The single tether material is guided along the neck extension and attached to the shoulder extensions. The at least one ring structure is positioned between the neck and shoulder extensions along the single tether material and splits the load on the helmet to the neck extension and the shoulder extension along to the single tether material created by exerted forces.

Abstract: A system of tethers and a helmet cooperating with the tethers for controlling a driver's head during operation of a vehicle. The system of tethers includes a pair of side tethers for attachment to the sides of the helmet and to a head and neck restraint device and either at least two rear tethers having first ends for attachment to the helmet and second ends for attachment to shoulder straps or a support member or a single rear tether having an intermediate portion attached to a support member and opposed end portions for attachment to the helmet.

Abstract: Embodiments herein relate to a wheelchair gearshift arrangement (10), which comprises an axle tube (20) and a pair of wheel attachment adaptors (30) inserted into a respective end (21, 22) of the axle tube (20). The wheel attachment adaptors (30) further includes a respective axle sleeve (40) adapted to receive and hold a respective wheel axle (51) of a respective complete wheelchair wheel (50). Each complete wheelchair wheel (50) having a respective wheel axle centric, axially translatable, gear change mechanism (52). One or more gear change actuators (80) are arranged within the axle tube (20) such that they are operative to selectively, upon user manipulation of an associated gear selector (60), axially translate the associated gear change mechanisms (52) of the respective complete wheelchair wheels (50). Such translation will affect a change of gear ratio between a push-rim (55) and wheel-rim (56) of each respective complete wheelchair wheel (50).

Abstract: A multi-wheel-drive bicycle that includes a dual chain-and-sprocket drive mechanism mated with a two-opposite-sided paddle-main-sprocket system is provided. The multi-wheel-drive bicycle comprises a frame having first and second opposing sides and having front, rear and lower ends. A front wheel is rotatably mounted on the front end of the frame and a rear wheel is rotatably mounted on the rear end of the frame. The multi-wheel-drive bicycle further comprises a chain-driven rear-drive mechanism configured for transmitting rotational power to the rear wheel. The chain-driven rear-drive mechanism includes a rear main-drive sprocket disposed on the first side of the frame and located at the lower end of the frame. The multi-wheel-drive bicycle further comprises a chain-driven front-drive mechanism configured for transmitting rotational power to the front wheel.

Abstract: A low-gear drive system functionally coupled to a wheelchair is provided herein.

Abstract: There is disclosed a combined-drive bicycle which can increase a driving speed and the beneficial effects of exercise and simultaneously to give fun to a rider. The combined-drive bicycle includes a handle assembly configured to steer a front wheel, the handle assembly comprising a crank handle to generate a handle motive force and a first gear rotated by the rotation of the crank handle, a pedal assembly configured to transmit the handle motive force and a pedal motive force generated by pedals to a rear wheel selectively or simultaneously, and a motive force transmission part to transmit the handle motive force to the pedal assembly, irrelevant to the steering of the handle assembly.

Abstract: An auxiliary device for a bicycle is disclosed. The auxiliary device includes a pair of thrusting members and a drive mechanism pivotally coupled between the thrusting members and the bicycle. The thrusting members positioned at two sides of the bicycle in a one-up-one-down manner, so that the thrusting members normally abut against a cyclist's back thigh muscles. The drive mechanism has two first pivots, a second pivot and a linkage system so as to make the thrusting members thrust the cyclist's back thigh muscles when the cyclist treadles the treadles. Thereby, the auxiliary device is useful to reduce burden bore by the cyclist's front thigh muscles and shank muscles, and can use the kinetic energy generated by the cyclist's back thigh muscles to enhance the cyclist's riding speed and endurance.

Abstract: A combination buddy bicycle includes a front bike frame, two transverse frames, two front wheel brackets, two steering control bar, front and rear transmission shafts, 1st˜4th pedal assemblies, a middle bike frame, a rear wheel transmission shaft, a rear bike frame, two rear transverse frames, and two rear wheel brackets. The rear bike frame can be directly connected to the front bike frame after removal of the middle bike frame, enabling the bicycle to be ridden by two persons side by side. When the steering control bars are biased, the connected front wheel brackets and front wheels are synchronously biased, assuring high stability.

Abstract: A kit can convert a non-driven wheel of a bicycle into a wheel driven by drive. The wheel includes a hub for rotatably receiving an axle the axle being mountable between the fork blades of a fork. A bicycle has a wheel converted to be driven by a drive in this manner. A method includes steps for converting a bicycle in this manner using the kit. The kit includes two supports mountable at the outer face of a fork blade having elements for being coupled with a fork blade, respectively. The supports include bearings, respectively, for rotatably receiving at least one shaft. The at least one shaft is connectable in co-rotation with the wheel to be driven. Furthermore, an arrangement for coupling at least one shaft to the drive is provided.

Abstract: The present invention relates to an arm and leg powered bicycle, comprising handle levers, a front wheel, a rear wheel, a handle shaft, supporting frames, pedals, a pedal shaft, front and rear sprockets and a chain belt, wherein the bicycle further includes an operating means for vertically rotating the handle levers, said member consisting of a handle rotation shaft, an operating rod or rods and a handle rotation shaft support, and a means for transferring the rotating force of the handle levers to a pedal shaft, said means consisting of a crank shaft, a rotating shaft, a flexible joint, a driving gear and a driven gear mounted on a pedal shaft.

Abstract: A skate car includes a left and right swayable front pipe coupled to front ends of the left and right support rods and an automatic position-restoring swayable driving wheel pivotally coupled to rear ends of left and right support rods separately. A user can either swing a vertical pipe of the front pipe to the left and right sides to swing the front driving wheel installed at the lower end of the vertical pipe, or apply a force to the left and right support rods to swing the swayable and automatic position-restoring left and right rear driving wheels to the left and right sides, or do both of the above, to drive the car body to roll forward along the S-shaped path and slide forward smoothly, so as to achieve a multiple of operating modes and gain more fun for the fitness exercise.

Abstract: The invention relates to a kit for converting a non-driven wheel (8) of a bicycle into a wheel (8) driven by drive (A), the wheel (8) comprising a hub (9) for rotatably receiving an axle (5), the axle being mountable between the fork blades (3, 4) of a fork (1), and further to a bicycle and a method for converting a bicycle. In order to provide for a simple and cost-effective conversion kit, two supports (13, 14) mountable at the outer face of a fork blade (3,4) comprise elements for being coupled with a fork blade (3, 4), respectively, the supports (13, 14) each comprising a bearing (35, 36) for rotatably receiving at least one shaft (37, 53, 54), the at least one shaft (37, 53, 54) being connectable in co-rotation with the wheel (8) to be driven. Furthermore, an arrangement for coupling at least one shaft (37, 53, 54) to drive (A) is provided.

Abstract: The present invention discloses a rear-pedaling standing type bicycle structure having a driving means installed at a front end of a bicycle frame and proximate to a corresponding line of front and rear wheels, and pedals pivotally coupled to both lateral sides of the front end of the bicycle frame for up and down movements. The driving means can be driven up and down alternately by the left and right pedals, and a link wheel is provided for transmitting kinetic forces to the rear wheel to drive the bicycle, so that the bicycle can be operated and driven in a special unique way to achieve the effects of expanding the exercising range and giving more fun to the exercise and game.

Abstract: This invention discloses a lever operated vehicle propulsion system wherein the levers move substantially horizontally and couplers are adjusted along each lever to control the mechanical advantage available to the vehicle operator. Drive chains that are attached to each coupler and engage a pair of freewheel sprockets that, in turn, engage an axle or hub that is attached to a drive wheel. The free ends of the drive chains are connected together by a tensioning device to maintain tension in the drive chains. Also disclosed is a power transmission device that may be used to engage or disengage a drive wheel of a three or four wheeled vehicle from the drive axle.

Abstract: A vehicle transmission includes a plurality of driven gears comprising a series of concentrically spaced ring gears. Each ring gear of the plurality of driven ring gears has an inner diametrical surface and an outer diametrical surface. Each outer diametrical surface is configured to slidingly engage the inner diametrical surface of an adjacent ring gear. The vehicle transmission further includes a biasing means for biasing each ring gear away from a driven shaft and a selective engagement means for selectively engaging one ring gear of the plurality of ring gears with the driven shaft.

Abstract: An exercise apparatus including a seatless frame for simulating running without the stress producing loads associated with each stride. The exercise apparatus has at least one front wheel and at least one rear wheel, both of which are rotationally connected to the frame. The exercise apparatus includes two independent means for propelling the apparatus along a path of travel. The first means simulates a running motion via a pair of pedals that operate in an arcuate pattern. The second means for moving the apparatus along the path of travel includes a pair of hand actuated levers.

Abstract: A two-wheel drive bicycle includes a main frame having a steering head, a seat tube, a cross bar and a hollow downtube. A main drive mechanism includes a housing, a driving spindle, at least one driven ring gear, a first driven shaft and a second driven shaft. The first driven shaft is rotatably connected to the housing and operably coupled to the at least one driven ring gear. The second driven shaft is, likewise, rotatably connected to the housing and operably coupled to the at least one driven ring gear. Front and rear wheel drive mechanisms include a series of shafts that are themselves coupled to and between the first and second driven shafts and the front and rear wheels. The main drive mechanism preferably includes a plurality of driven gears comprising a series of concentrically spaced ring gears. Each ring gear of the plurality of driven ring gears has an inner diametrical surface and an outer diametrical surface.

Abstract: A two-wheel drive bicycle includes a main frame having a steering head, a seat tube, a cross bar and a hollow downtube. A main drive mechanism includes a housing, a driving spindle, at least one driven ring gear, a first driven shaft and a second driven shaft. The first driven shaft is rotatably connected to the housing and operably coupled to the at least one driven ring gear. The second driven shaft is, likewise, rotatably connected to the housing and operably coupled to the at least one driven ring gear. Front and rear wheel drive mechanisms include a series of shafts that are themselves coupled to and between the first and second driven shafts and the front and rear wheels. The main drive mechanism preferably includes a plurality of driven gears comprising a series of concentrically spaced ring gears. Each ring gear of the plurality of driven ring gears has an inner diametrical surface and an outer diametrical surface.

Abstract: A two-wheel drive bicycle includes a main frame having a steering head, a seat tube, a cross bar and a hollow downtube. A main drive mechanism includes a housing, a driving spindle, at least one driven ring gear, a first driven shaft and a second driven shaft. The first driven shaft is rotatably connected to the housing and operably coupled to the at least one driven ring gear. The second driven shaft is, likewise, rotatably connected to the housing and operably coupled to the at least one driven ring gear. Front and rear wheel drive mechanisms include a series of shafts that are themselves coupled to and between the first and second driven shafts and the front and rear wheels. The main drive mechanism preferably includes a plurality of driven gears comprising a series of concentrically spaced ring gears. Each ring gear of the plurality of driven ring gears has an inner diametrical surface and an outer diametrical surface.

Abstract: Devices set for biking upright enables to apply an additional effort cyclist to the operator-powered vehicle. The set contains supports with additional pedal levers and a sprocket embraced by the driving chain of the vehicle. This sprocket is connected to the levers by virtue of free wheeling mechanism. The set may also include supporting poles for the upright cyclist. The set can be mounted virtually on any bicycle, so that to improve its operational parameters. A vehicle with devices set can become a day-to-day transportation means and fitness-improving means, since the partners can exchange places during the journey. Different modification tricycles with the devices set mounted on them can be adopted for two or even three partners in addition to the main cyclist. Including the devices set as mentioned above together with a pedal cartridge containing a free wheeling mechanism creates a new type of a motor-less vehicle for biking upright.

Abstract: A recumbent tricycle which includes a propulsion system which includes a combination of foot and arm power for propulsion. Pedals are operated with the rider's legs. Handles are also connected to the drive mechanism, with the handles pulled back and pushed forward to add to propulsive power. The handles are also connected through a tie rod arrangement to the front wheels such that the wheels may be turned so that the vehicle can be steered by moving the handles toward one side or the other. Preferably, two large front wheels similar to conventional bicycle wheels are provided in front, with a single smaller diameter but wider driven rear wheel. The rear wheel is mounted on a sub-frame pivotally secured to the vehicle frame and supported on a shock absorber. Brake and gear change mechanism controllers are mounted on the handles.

Abstract: An improved exerciser bike includes a frame having a front wheel and a handle for steering the front wheel, and includes two rear wheel axles. Two rear wheels are rotatably secured to the rear wheel axles. Each of the foot supports has a middle portion pivotally coupled to the frame. Two chains are engaged on the ratchet sprocket wheels. Each chain is first connected to a wire element which winds on a pulley and then connected to a resilient element and finally secured to an extension rod of the frame. So, the resilient element's length can be designed to be longer to magnify the restoring force and prolong the life of the resilient element.

Abstract: The present invention is a fully functioning two-wheel drive bicycle and embodiments thereof. The drive train which supplies power to the front wheel is incorporated into a modified frame and comprises a rear wheel driven by the traditional chain or shaft mechanism and the front wheel driven by a series of rigid shafts or other internalized drive systems. The front wheel drive is adaptable to all bicycle frame geometries including the double diamond mountain bike and road bicycle frame, touring, commuter and comfort bicycles, BMX, trials bicycles, and recumbent and tandem bicycles. The drive train lengthens and shortens in parallel with the shock-absorbing front fork and rear suspension. An engagement clutch, a one-way hub, and torque limiting clutch are also disclosed.

Abstract: A bicycle which can be driven either by conventional rotation of the pedals, or by reciprocating movement of the saddle on the seat post. The cycle includes two frame portions: a first fixed frame portion including an upright member extending from a drive wheel axle bearing, and a second movable frame portion including the seat post which has bifurcated arms driving transmission levers for turning the drive wheel.

Abstract: The present invention is a fully functioning two-wheel drive bicycle and embodiments thereof. The drive train which supplies power to the front wheel is incorporated into a modified frame and comprises a rear wheel driven by the traditional chain or shaft mechanism and the front wheel driven by a series of rigid shafts or other internalized drive systems. The front wheel drive is adaptable to all bicycle frame geometries including the double diamond mountain bike and road bicycle frame, touring, commuter and comfort bicycles, BMX, trials bicycles, and recumbent and tandem bicycles. The drive train lengthens and shortens in parallel with the shock-absorbing front fork and rear suspension. An engagement clutch, a one-way hub, and torque limiting clutch are also disclosed.

Abstract: A bicycle having a front and rear wheel geared capability. A bicycle having both front and rear wheel gear controlled and chain driven. A bicycle frame where the front and rear halves pivot on a vertical center section. A steering mechanism that is controlled by the front handlebar that rotates a gear that is meshed with notches on the front end of the steering cable assembly. A center double sprocket system that is connected to drive gears on the front and rear axles by a fixed bar with pivot capabilities, and are chain driven.

Abstract: The present invention is a fully functioning two-wheel drive bicycle with a shock-absorbing front fork. The drive train which supplies power to the front wheel is incorporated into a modified frame and comprises a rear wheel driven by the traditional chain or shaft mechanism and the front wheel driven by a series of rigid shafts transferring power from the driven rear wheel to the front wheel. The drive train lengthens and shortens in parallel with the shock-absorbing front fork.

Abstract: The present invention describes a two-wheel drive bicycle. The drive train, which supplies power to the front wheel, is incorporated into a modified frame. The bicycle includes a rear wheel driven by a traditional chain mechanism. The front wheel is driven by a series of shafts transmitting power from the driven rear wheel to the front wheel.

Abstract: The present invention is a fully functioning two-wheel drive bicycle (78). The drive train which supplies power to the front wheel (17) is incorporated into a modified frame (91) and comprises a rear wheel (90) driven by the traditional chain or shaft mechanism (23) and the front wheel driven (17) by a series of rigid shafts transferring power from the driven rear wheel (90) to the front wheel (17).

Abstract: A combination chaise lounge and tote cart apparatus is formed of a fabric covered base frame having first and second fabric covered extension frames hinged to each end of the base frame. Four foldable wheel assemblies are attached to the base frame so that the wheel assemblies can be moved from an extended position to a forward position and each of the extension frames can be folded over onto the base frame to make a compact chaise lounge and tote cart combination. The wheel assembly can be unfolded to extend the wheels and the first and second extension frames can be opened up to a generally parallel vertical position. A locking bar can be removably connected therebetween to hold the first and second extension frames upright and parallel so that items can be carried on the wheel base and can be laid across the tops of the upright first and second extension frames. A hinged handle is also provided for pulling the cart and one or two fabric sides can be connected between first and second extension frames.

Abstract: An exercise apparatus with a transmission which may be selectively adjusted to provide either arm exercises, leg pedaling exercises or stepping exercises, said apparatus formed with a frame; a seat on said frame; a pair of rear drive wheels rotatably mounted on a rear shaft at the rear of said frame; with the transmission having three parts; a first transmission stage mounted on said fame coupled to transmit power to said rear drive wheels by means of a sprocket chain transmitting force between a sprocket on a freewheel supporting axle and a sprocket on the rear shaft. A second transmission stage is formed by a sprocket on a crankshaft supported on a bracket swingable on said freewheel supporting axle with a sprocket chain extending from a sprocket on the crankshaft to the sprocket wheel on the freewheel axle. A third transmission stage is formed by a spring and sprocket chain trained over the freewheel sprocket, with the free ends of the spring and chain anchored to a swinging pedal.

Abstract: A combination exercise and land travel device includes a forwardly facing pedalling station from which a first operator propels the device and a steering control at the pedalling station. The device further includes a rowing station usable by a second operator to provide further propulsion for the device in addition to that provided at the pedalling station.

Abstract: An exerciser bike includes a frame having a front wheel and a handle for steering the front wheel, and includes two rear wheel axles. Two rear wheels are rotatably secured to the rear wheel axles by two ratchet sprocket wheels. Two foot supports each has a middle portion pivotally coupled to the frame. Two chains are engaged on the ratchet sprocket wheels and each has one end secured to the frame and the other end secured to the foot support, for allowing the rear wheels and the ratchet sprocket wheels to be driven by the foot supports via the chains. The exerciser bike may be turned with the rear wheels when the rear wheels are actuated with different speeds.

Abstract: The invention is a bicycling device and method of use thereof, whereby muscle power can be more efficiently transferred from the cyclist's upper-extremities (arms) to the conventional footpedals via the cyclist's lower-extremities (legs) without need of mechanical contrivance and associated drain on fractional human-power capability. The device is attached proximally to the knee region as a method by which a cyclist may obtain a firm manual handhold, whereby the cyclist can grasp the device with his hand and proceed to exert appropriate downward-thrust or upward-thrust (during up-stroke using shoe/pedal-cleats) supplied from upper-extremities according to the regular cyclic rotation of the associated footpedal. Since upper extremity thrusting is applied directly through mechanism of the cyclist's own lower extremities, the need for manufactured mechanical contrivance and its associated weight penalty has been averted.

Abstract: A cycle is convertible between a standard cycle configuration for normal cycling and an exercise configuration in which the cycle is propelled forwards by alternate saddle strokes, and pedal strokes, the saddle stroke comprising putting the cyclist's weight on the saddle which moves downwardly driving the crank shaft and bringing the two in-phase pedals upwardly, the pedal stroke comprising pressing down on both pedals to bring the saddle up again. In the exercise configuration the cycle is prevented form stalling by an arrangement whereby when the pedals are at bottom dead center the weight on the saddle is applied to the crank at an angle to the vertical to maintain forward propulsion, and whereby when the saddle is at bottom dead center the pedals are just forward of top dead center so as to maintain forward propulsion. In the exercise configuration the pedals may be constrained to rotate in one direction only by means of a ratchet mechanism thereby preventing the pedals hitting the cyclist on the shins.

Abstract: A therapeutic wheeled vehicle particularly suited for strengthening the hip extensor muscles of a user is described. The vehicle combines the therapeutic benefits of conditioning the hip extensor muscles with the enjoyable activity of propelling oneself on a wheeled vehicle. A frame is provided following the general pattern of a tricycle with one steerable wheel and a pair of driving wheels. A seat, a back rest, and at least one strap for holding the user in position on the seat and the back rest are also provided. These user support structures securely hold the user in the proper operating position, even when the user has less than normal muscular control and strength, such as with children with cerebral palsy. Structures are included for receiving at least a portion of the user's leg between the user's knee and the user's hip and for transmitting the extension motion of the user's hips into the rotational movement of the pair of driving wheels.

Abstract: A land vehicle or bicycle (110) is disclosed having a front wheel drive which includes an impulse drive mechanism and shock driver. The front wheel drive mechanism (140) includes a handle bar/driver mechanism (151) attached to an impulse drive mechanism (166). The bicycle (110) may be used such that the handle bar/driver mechanism (151) is fixed for use as a conventional bicycle or may be released by a twist grip (159) or thumb release (193) so that the bicycle may be driven by a drive mechanism (140). The shock drive mechanism (FIGS. 14-16) provides forward propulsion force due to the compression (308) and recoil (304) forces of a shock absorber (144) when the bicycle (110) encounters a bump, curb or other obstacle.

Abstract: A drive mechanism is disclosed that is selectably engageable to provide a bicycle that has normally driven and nondriven wheels with either single or dual wheel drive. The drive mechanism includes a power take off means that has: a first power transmission mechanism mounted on said frame; a second power transmission mechanism mounted on the bicycle frame in positive drive power transmitting engagement with a normally non-driven wheel of the bicycle; and a power transfer apparatus connected to receive power from the first power transmission mechanism and transmit it to the second power transmission mechanism. A coupling mechanism is operatively connected with the power take off and is selectively actuatable to place the first power transmission mechanism either in a drive position receiving power from the normally driven wheel or a disengaged non-power transmitting position.

Abstract: A two-wheel drive cycle comprises a frame, a front fork assembly mounted on the frame through a pivotal connection to steer the cycle, a front wheel rotating on the fork assembly about a first axis, and a rear wheel rotating on the frame about a second axis. A front sprocket is mounted on the front wheel and centered on the first axis to drive the front wheel, while a rear sprocket is mounted on the rear wheel, is centered on the second axis and driven through the pedals or motor. A chain is meshed with both the front and rear sprockets and guided between these front and rear sprockets through a plurality of gears and pulleys, including a set of gear and pulley engaging the chain and rotatively mounted on the frame close to the pivotal connection. A spring mechanism lengthens and shortens the chain loop as the front fork assembly is turned. In operation, the front wheel is driven through the pedals or motor, the rear sprocket, the chain meshed with both the front and rear sprockets, and the front sprocket.

Abstract: An at least two-wheeled vehicle provided with a power source, a chain to transmit power from the source to a first wheel, and further device to transmit power from the first wheel to the second wheel. A torque-limiting clutch is provided in the mechanical connection between the two wheels which will predetermine the maximum torque which will be transmitted from the first wheel to the second wheel. This clutch also permits the first wheel to travel faster than the second wheel, when required. There is also provided a free-wheeling clutch in the mechanical connection between the two wheels which permits the second wheel to rotate faster than the first wheel. The core of the transmission has the ability to absorb and release torque applied to it. The present invention provides improved traction and better steering ability.

Abstract: A power transfer apparatus for imparting drive motion to followers. The power transfer apparatus mechanically and rotatably communicates with a driven wheel of a vehicle and transfers rotary power to the non-driven wheel of a vehicle. The present invention teaches a power distribution apparatus for mountain bicycles that mechanically and rotatably communicate with a pedal driven wheel and that transfers rotary power to the non-driven wheel to improve the forward propulsion of the mountain bicycle under rough terrain riding conditions. The power transfer apparatus includes a first caliper assembly having a driver idler and an auxiliary free wheeling idler for engaging a pedal driven wheel of a bicycle, a cable drive system coupled to the driver idler transfers drive motion from the driven wheel to a second caliper assembly having a receiver idler that engages the drive motion to the non-driven wheel.

Abstract: There is disclosed a pedal powered structure in which a frame carrying a seat and an axle with a pivotally mounted pedal on each side thereof is modified to include a pedal axle extension beyond the pedal at its inner and outer ends to provide inner and outer extensions, said pedal axle rotating on a bearing mounted within a crank assembly. Ligatures, one for each pedal axle extension, are connected at one end to one of the pedal axle extensions, at the other end to an element mounted behind and below the seat. The parallel ligatures spaced apart by approximately the width of the pedal, and straps are secured between each pair of parallel ligatures intermediate its length to rest upon the thigh of the rider above the knee when the rider is using the pedal powered structure.

Abstract: A children's mini-car includes a three-gear set disposed on a rear axle. The three-gear set, which is driven by the ropes disposed on both sides of the rear axle, is arranged to cooperate with accelerator pedals located on both sides of a front transverse rod to alternatively drive the rear wheels to move the mini-car forward. In addition, a gear shifting lever is used to control the gear set, so as to reverse the direction of movement of the mini-car with the aid of a rear view mirror. Furthermore, a detachable car seat can be removed from the mini-car and a steering wheel can be replaced by a movable pedal, such that the instant mini-car may act as a safe children's sliding car by utilizing an auxiliary brake system located below the steering wheel.

Abstract: A recreational and exercise cycle characterized by a propulsion system which derives its transmission force from the coordinated rowing action of the occupant's body weight, arm force, and foot-leg action comprising rotatable cranks, treadle and seat levers connected to and cranks, and a handle bar-power lever combination connected to a seat.

Abstract: 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 the upper front of a frame. The drive gear has coextensive handle means for rotating the drive gear. A first drive chain connects the drive gear to a plurality of different sized gears. A second drive chain connects the plurality of different sized gears to the gear axially mounted on the front wheel, whereby rotation of the hand means causes rotation of the front wheel. A derailleur is provided to change the position of the second chain on the plurality of different sized gears. Independently rotatable coextensive handles with cables extending to the outside allow for brake levers and derailleur levers to be mounted on the handles without becoming entangled during 360 degree rotation of the drive gear. The gear wheel is lockable to provide fixed handlebars.

Abstract: An automatic transmission for motorcycles includes a planetary gear train. The power input is applied to a ring gear of the train by a fixed speed ratio transmission and to a sun gear by a variable speed ratio transmission so that the sun gear rotates in a direction opposite to that of the ring gear. The power is output from the planetary gear carrier. The power output is zero when the pitch line velocity of the ring gear is equal to that of the sun gear. A centrifugal clutch is mounted on the input shaft for engaging fixed speed ratio transmission when the rotational speed of the input shaft reaches a predetermined value. Furthermore, another shaft is disposed parallelly near the input shaft and connected to the input shaft by means of two interengaging gears which are respectively mounted on the two shafts so as to act as a balancing shaft for the crank shaft of the engine.

Abstract: A hand-powered toy vehicle with a pair of levers coupled to independent rear wheels. The levers can be operated together to accelerate forward movement of the vehicle, as well as to brake it. The levers also can be used to rotate one of rear wheels faster forwardly than the other in order to turn the vehicle. Each lever is connected to one of the wheels through disengagable drive and driven gears with a saw-tooth configuration which permits forward rotation of the drive gear to be transmitted to the driven gear and the wheel to accelerate forward rotation of the wheel. To brake forward rotation of the wheels, the levers can be used to rotate the drive gears rearwardly and force the drive and driven gears to mesh and lock.

Abstract: A recreational and exercise cycle characterized by a propulsion system which derives it transmission force from the coordinated rowing action of the occupant's body weight, arm force, and foot-leg action comprising rotatable cranks, treadle and seat levers connected to and cranks, and a handle bar-power lever combination connected to a seat.

Abstract: An operator-responsive drive system is capable of rotating a drive wheel in either a velocipede, such as a bicycle, or a stationary exerciser. In a first mode of operation, drive linkage connects a pair of coupled pedals and a seat pivotally coupled to a frame to a drive sprocket which is rotationally mounted to the frame. Downward displacement of the seat such as in response to the weight of the operator positioned thereupon causes both pedals to be displaced upward in imparting rotation to the drive sprocket which, in turn, rotates a drive wheel coupled thereto. Transfer of the operator's weight to the pedals resulting in the downward displacement of the pedals causes further rotation of the sprocket in the same direction and upward displacement of the seat. The operator may thus propel the vehicle by alternately shifting his weight between the seat and the pedals in effecting reciprocating displacement thereof.