A pump-action mobility and exercise device may include a pumping arm attached to a foot slide. As the pumping arm is actuated, the foot slide moves forward and rearward in response to the pumping action. The foot slide can also be moved by a user's foot movement. The foot slide may be connected to a drive mechanism that selectively engages a chain or belt that loops around a drive wheel arranged on an axle of the vehicle. When the drive mechanism catches and moves the belt or chain in a forward direction, the axle rotates in a forward direction to drive the vehicle forward. A reverse mechanism may also be provided that selectively causes the drive mechanism to catch and drive the belt or chain in an opposite direction.

A pump-action mobility and exercise device may include a pumping arm attached to a foot slide. As the pumping arm is actuated, the foot slide moves forward and rearward in response to the pumping action. The foot slide can also be moved by a user's foot movement. The foot slide may be connected to a drive mechanism that selectively engages a chain or belt that loops around a drive wheel arranged on an axle of the vehicle. When the drive mechanism catches and moves the belt or chain in a forward direction, the axle rotates in a forward direction to drive the vehicle forward. A reverse mechanism may also be provided that selectively causes the drive mechanism to catch and drive the belt or chain in an opposite direction.

A drive train for a treadle scooter using a locking roller clutch on each side of a drive wheel substantially equalizes drive line pull at actuation pulleys operatively associated with the locking roller clutches as a user pivots a rocker board having its ends attached to ends of the drive line.

A drive train for a treadle scooter using a locking roller clutch on each side of a drive wheel substantially equalizes drive line pull at actuation pulleys operatively associated with the locking roller clutches as a user pivots a rocker board having its ends attached to ends of the drive line.

A direct-drive double wing scooter includes a frame, an actuation assembly, a drive assembly, and a transmission assembly. The actuation assembly includes left and right swing wings each pivoted close to a front end of the frame through a pivot. The drive assembly includes a first turning shaft and a second turning shaft penetrating two sides of the frame. A distance between the first turning shaft and the pivot is defined as a first distance. A distance between a rear end of the right swing wing is defined as a second distance, or a distance between a rear end of the left swing wing is defined as a second distance. The first distance is in the range of 0.10-0.65 times the length of the second distance. The direct-drive double wing scooter provides a simple and reliable drive way and has transportation, amusement and fitness effects.

A direct-drive double wing scooter includes a frame, an actuation assembly, a drive assembly, and a transmission assembly. The actuation assembly includes left and right swing wings each pivoted close to a front end of the frame through a pivot. The drive assembly includes a first turning shaft and a second turning shaft penetrating two sides of the frame. A distance between the first turning shaft and the pivot is defined as a first distance. A distance between a rear end of the right swing wing is defined as a second distance, or a distance between a rear end of the left swing wing is defined as a second distance. The first distance is in the range of 0.10-0.65 times the length of the second distance. The direct-drive double wing scooter provides a simple and reliable drive way and has transportation, amusement and fitness effects.

The invention discloses a ratchet-driven self-propelled scooter, comprising a scooter body and a transmission mechanism set on the scooter body; the invention provides a manpower self-propelled scooter with simple structure, light weight and low cost; step on a driving pedal to put a driving clamp in motion, thereby a pressing arm wheel drives a ratchet arm, then a ratchet pawl leads an axle to drive the rear traveling wheels to rotate, so that the scooter body moves; after releasing the driving pedal, the driving pedal is reset through a torsion spring, likewise repeatedly stepping to increase the driving force for the scooter body; the device possesses a complete scheme, simple structure, convenient operation, low cost, which is worthy of widespread promotion.

The present disclosure provides a tilting-capable three-wheeled boarding vehicle comprising: a steering-assembly configured to enable steering and tilting of the vehicle; a tilting-capable assembly including one driving wheel and a rotatable elongate body extending from the steering-assembly toward driven-wheels; a non-tilted assembly including a non-rotatable elongate body, the two driven wheels, a shaft connecting the two driven wheels to each other, and a first support bar extending perpendicularly to the non-rotatable elongate body, wherein the rotatable elongate body is rotatably coupled to the non-rotatable elongate body; and a vertically-movable elongate assembly pivotally coupled, at one end thereof, to the rotatable elongate body and contacting, at the other end thereof, the first support bar during downward movement thereof, wherein the vertically-movable elongate assembly is configured to vertically move by pedaling forces from a user.

The present disclosure provides a tilting-capable three-wheeled boarding vehicle comprising: a steering-assembly configured to enable steering and tilting of the vehicle; a tilting-capable assembly including one driving wheel and a rotatable elongate body extending from the steering-assembly toward driven-wheels; a non-tilted assembly including a non-rotatable elongate body, the two driven wheels, a shaft connecting the two driven wheels to each other, and a first support bar extending perpendicularly to the non-rotatable elongate body, wherein the rotatable elongate body is rotatably coupled to the non-rotatable elongate body; and a vertically-movable elongate assembly pivotally coupled, at one end thereof, to the rotatable elongate body and contacting, at the other end thereof, the first support bar during downward movement thereof, wherein the vertically-movable elongate assembly is configured to vertically move by pedaling forces from a user.

Wheel hub arrangement for a drive with rotated drum that has a stationary shaft (13); a hollow drum (19, 20) arranged by bearings around it, a wheel drum (32) that includes a hub of the driven wheel, and freewheels, inner sleeve (21, 22) which are arranged around the stationary shaft (13) by bearings, and placed partially in the cavity of the drum (19, 20). The wheel hub arrangement for a drive with rotated drum for bicycles, street stepper vehicles, wheelchairs and tricycles.