178 results about "Three-wheeled car" patented technology

A three-wheeled vehicle is designed for road use. The three-wheeled vehicle has an internal combustion engine that drives a single rear wheel and a pair of steerable front wheels. The vehicle is designed with optimal ranges for ergonomic comfort.

Disclosed is a three-wheeled vehicle with centrally positioned motor and driver's seat. An exemplary embodiment has a frame for supporting a driver and a multitude of mechanical devices. A pair of steerable front wheels are rotatably affixed to the front portion of the frame. A rear wheel is rotatably affixed along the frame's centerline in the rear portion. A motor is affixed to the frame's centerline. The driver's seat is also affixed to the frame's centerline behind the motor and ahead of the rear wheel, so the driver sitting in the driver seat is in both a recumbent and straddle position.

An autonomous tilting three-wheeled vehicle comprises a pair of front wheels coupled to a tiltable chassis by a mechanical linkage, such that the pair of wheels and the chassis are configured to tilt in unison with respect to a roll axis of the chassis. An electronic controller of the autonomous vehicle controls a tilt actuator to selectively tilt the chassis. Optionally, a steering actuator is coupled to the front wheels and controlled by the electronic controller to selectively steer the wheels. A sensor configured to measure orientation-dependent information may be coupled to the chassis by a gimbal configured to compensate for vehicle tilt. In some examples, the autonomous vehicle comprises an autonomous delivery robot.

A rear suspension of a three-wheeled car with two front wheels and one rear wheel in the car frame may include a wheel center connected to the rotation of axis of the rear wheel, an upper link with one side connected to the car body and the other to a wheel center, and a lower link with one side connected to the car body below the upper link and the other side to a wheel center below the upper link, wherein, the upper link and the lower link may be installed so that their connection point with the car body may be located in a higher altitude than their connection point with the wheel center, and wherein, the angle of inclination from the ground may be greater for the lower link than for the upper link.

A tricycle includes a frame and a front wheel. The tricycle includes a first rear wheel coupled to the frame. The tricycle includes a second rear wheel coupled to the frame. The tricycle includes a front suspension system and a rear suspension system functionally coupled to the frame. The tricycle includes a drive system coupled to the frame and a wheel hub fixedly coupled to the first drive shaft. The drive system includes a transmission system coupling a first drive train to a second drive train. The tricycle includes a locking device configured to lock the relative position of the wheel hub and the rear axle, wherein the locking device is selectably adjustably between a first mode and a second mode. The first mode includes the wheel hub and the rear axle locked together, and the second mode includes the wheel hub and the rear axle shaft independently rotatable.

The invention relates to the technical field of inverted tricycles, in particular to a vehicle automatic tilting balance control system and an inverted tricycle with the same. The vehicle automatic tilting balance control system comprises a signal processor, a motor, a balance rocker arm, a transmission rocker arm and a front wheel suspension which are arranged on a frame and connected in sequence. A speed sensor is arranged on the front wheel suspension, and an angle sensor is arranged on a steering wheel or a rotating shaft of the steering wheel. The running speed of wheels, the rotating direction of the steering wheel and angle information of the steering wheel are input the signal processor which performs synthetic judgment on the input information and gives out an instruction to the motor, the motor produces proper force to drive the balance rocker arm to rotate, and then the balance rocker arm lifts or downwards pushes the front wheel suspension through the transmission rocker arm. Accordingly, tilting angles of a left wheel and a right wheel are controlled, and the turning is flexible and can be controlled automatically.

A rear suspension of a three-wheeled car with two front wheels and one rear wheel installed in the car body frame may include a pair of roll links that may be connected to the front wheels and twists as the car turns, and a roll connector that pivots around a shaft as the roll links twist, and a knuckle assembly, which may be joined to a rear wheel, installed in the rear end of the car body frame, and connected to a roll connector so that it turns left and right as the roll connector turns, wherein the knuckle assembly turns in the same direction the front wheels turn.

A tricycle includes a frame and a front wheel. The tricycle includes a first rear wheel coupled to the frame. The tricycle includes a second rear wheel coupled to the frame. The tricycle includes a front suspension system and a rear suspension system functionally coupled to the frame. The tricycle includes a drive system coupled to the frame and a wheel hub fixedly coupled to the first drive shaft. The drive system includes a transmission system coupling a first drive train to a second drive train. The tricycle includes a locking device configured to lock the relative position of the wheel hub and the rear axle, wherein the locking device is selectably adjustably between a first mode and a second mode. The first mode includes the wheel hub and the rear axle locked together, and the second mode includes the wheel hub and the rear axle shaft independently rotatable.

A turning mechanism of an electric cart includes twin front wheels, a control shaft, and an axle; the shaft has a horizontal rod portion at a lower end; the front wheels are connected to two ends of the axle while the axle is arranged under the horizontal rod portion; the front wheels are much closer to each other than rear wheels are to each other; springs are located between the axle and the horizontal rod portion; connecting plates are arranged next to fronts and rears of the horizontal rod portion and the axle, and each has two fitting holes respectively opposing a through hole of the horizontal rod portion, and a through hole of the axle; ringed pads are inserted in respective fitting holes, and bolts are inserted through the ringed pads, and the through holes; thus, the cart is like a three-wheel one in terms of easiness to use and simplicity of the structure.

The invention is suitable for the technical field of locksets and provides a lockset. The lockset comprises a lock body assembly provided with a locking notch and a locking groove, a spring bolt assembly, an unlocking assembly and a power supply assembly. The spring bolt assembly comprises a spring bolt main body and a tension spring; the unlocking mechanism is mounted in an accommodating cavity, is matched with the spring bolt main body and comprises a locking assembly which is driven by a transfer assembly to face or leave the spring bolt main body to be locked or unlocked; the power supply assembly is mounted in the accommodating cavity and comprises a battery pack for providing a power supply to a control mainboard and a driving device. The lockset provides the power supply to the unlocking mechanism by virtue of the battery pack in the power supply assembly and drives the transfer assembly to match the locking assembly with the spring bolt main body by virtue of the driving device, so that the locking notch is locked or unlocked; the lockset supplies power to the control mainboard and the driving device by virtue of the battery pack in the accommodating cavity, so that the power supply is sufficiently supplied without power failure, and therefore, the reliability and the stability of an anti-theft effect are guaranteed.

A foldable tricycle that transitions between a use orientation, and a transport or storage orientation. The tricycle has a frame including a first end and a second end of the frame, a fork rotatably connected adjacent the first end of the frame, a front wheel rotatably connected to the fork, and a handlebar assembly coupled to the fork to allow for steering of the fork. The tricycle also has first and second rear wheels adjacent the second end of the frame in the use position. The rear wheels are positioned a first distance from a longitudinal axis of the frame in the use position. The first and second wheels can be transitioned to a storage position adjacent the first end of the frame and at a second distance from the longitudinal axis of the frame in the storage position, wherein the first distance from the frame is greater than the second distance from the frame. The tricycle may also have a folding assembly pivotably coupled to the second end of the frame at a first pivot location. As such, the first and second rear wheels may be connected to the folding assembly to simultaneously transition the first and second rear wheels to a storage position with the folding assembly.

The improved chainless drive of the present invention features a four speed planetary transmission housed within the hub of the driving wheel of a utility tricycle, and a vehicle frame which provides two options for delivering power to the transmission. In the first option the drive shaft, which extends out through bearings on the center line of the driving wheel, has a crank arm fixed on each end. A spindle is fixed in the end of each crank arm and a pedal beam is rotatably mounted near its center on each spindle. A cam roller mounted on each pedal beam near its aft end engages a short length of steel track fastened on the sides of a trunk bolted on the aft end of the tricycle frame. The cam roller provides a downward force to counter balance the weight of the rider on the cantilevered forward end of the pedal beam increasing the force on the spindle and thus amplifying the torque delivered to the drive shaft. In the second option the pedal beams are replaced with conventional bicycle pedals and bicycle seat and the trunk is bolted on the forward end of the tricycle frame. Storage space in the fiberglass trunk permits use of the utility tricycle for shopping.

A straddle-type three-wheeled vehicle has a frame (42) having an upper frame member (100), a lower frame member (102), a forward cross member (104) interconnecting a forward portion of the upper frame member (100) with a forward portion of the lower frame member (102), and a rearward cross member (106) interconnecting a rearward portion of the upper frame member (100) with a rearward portion of the lower frame member (102). A strut (108) extends diagonally from the forward cross member (104) to the lower frame member (102). The vehicle has an engine mounted to the frame (42). An air box of the vehicle has at least a portion thereof disposed above at least a portion of the engine. A fuel tank of the vehicle is disposed rearwardly of the air box.

The invention discloses a body-building and labor-saving bicycle riding at a high speed and driven by an oscillating bar, belonging to the technical field of bicycle manufacturing in the mechanical manufacture industry. The body-building and labor-saving bicycle riding at a high speed and driven by the oscillating bar is characterized in that an increasing speed gear mechanism over level-two is used for transmission; a crank mechanism and a link mechanism are driven to move by a pedal oscillating bar or a manual oscillating bar; thus the bicycle is driven to ride at the high speed; the rear wheel can be a single wheel and also can be two wheels; the height of the back rest of a seat can be liftable; a generator, an electric storage bottle, a speedometer, a steering indicating lamp, a width lamp, a brake lamp, rearview mirrors, an electric horn with a high sound volume and a tool box are driven by a rear wheel shaft; the rear wheel shaft is provided with a brake, and the edge of the front wheel is provided with a brake; the whole bicycle is provided with a casing; and two sides of the casing are provided with bicycle doors. The designed speed and riding speed of the bicycle can reach more than 170 killometers per hour, thus the bicycle is a fully green efficient tool for riding instead of walk with zero energy consumption and zero carbon discharge and the bicycle has equivalent body-building effects with special body-building machines such as a running machine, a pedal machine and the like. The application of the bicycle is as follows: the bicycle can replace an ordinary bicycle, an electrical bicycle, a light and convenient electro-tricycle, a motor cycle and a domestic car with low performance.

A rear suspension of a three-wheeled car with two front wheels and one rear wheel installed in the car body frame may include a pair of roll links that may be connected to the front wheels and twists as the car turns, and a roll connector that pivots around a shaft as the roll links twist, and a knuckle assembly, which may be joined to a rear wheel, installed in the rear end of the car body frame, and connected to a roll connector so that it turns left and right as the roll connector turns, wherein the knuckle assembly turns in the same direction the front wheels turn.

A system that steers the rear wheels of the three wheeled vehicle in coordination with the operator turning the front wheel that improves handling, performance and safety. The rear wheels are steered by a rear end mounted powered steering rack that is controlled by a steering control computer that receives input from a variety of sensors including a sensor for vehicle speed and a sensor in the steering neck that measures the angular rotation of the handlebars as they are turned by the operator. Based on these inputs, using proprietary programming the steering control computer calculates the rate, timing and direction to turn the rear wheels. Rear steering offers advantages over front wheel only steering including being easier for the operator to turn the vehicle, a smaller turning radius, better straight line stability, better high speed handling, improved corning performance, improved steering response and improved safety.