A recumbent vehicle comprising a single, bowed tubular member forming a main frame having a front end and a rear end. A rear wheel fork assembly is mounted toward the rear end of the main frame with a rear wheel rotatably mounted in the rear wheel fork assembly. A crank assembly, including crank pedals, is mounted to the front end of the main frame. The crank assembly is adjustable to alter the distance of the crank pedals from the front end. A pair of front steering wheels is rotatably mounted toward the front end of the main frame, rearwardly of the crank assembly. A body seat, substantially conforming, throughout its length, to the bowed shape of a portion of the main frame generally intermediate the front steering wheels and the rear wheel, is mounted in alignment with said portion of the main frame.
An apparatus including a wheel chair, with a horizontal mount positioned between upper and lower horizontal framework members of the wheel chair, with a yoke member secured to the mount positioned interiorly of the wheel chair framework. A bicycle structure includes a forward and rear wheel mounted within a framework, with the framework further including drive crank mounted to the frame of the bicycle adjacent an upper tubular extent of the framework, and wherein the bicycle includes a rearwardly directed boss member securable to the yoke of the wheel chair, wherein the boss member is spaced above a lower contact portion of a rear wheel of the bicycle a predetermined distance greater than a spacing of the yoke relative to a bottom contact surface of a forward wheel assembly of the wheel chair to elevate a forward end of the wheel chair in securement to the bicycle.
The present invention 10 discloses a new and novel tricycle with adjustable linkage 48, 54 for varying the drive power for either foot or hand power. Furthermore, the linkage 44, 52 can also be used to vary the wheelbase. Moving the front wheel 14 toward the rear wheels 22 provides for a tighter turning radius. Moving the front wheel 14 away from the rear wheels 22 provides for greater stability at high speed. In addition, the linkage 48, 54 provides for the selective placement along a horizontal and/or vertical plane relative to the seat 24 allowing persons of varying size to comfortably position the pedal assembly 16. Additionally, the present invention 10 has a cantilevered seat frame 30 with the seat 24 at one distal end and the other end forming a yoke 32 connected to the front wheel steering pivot column 34 whereby left movement of the seat 24 results in a right turn of the front wheel 14 and a right movement of the seat 24 results in a left turn of the front wheel 14.
A short wheel base, three wheel recumbent vehicle comprising a main frame including a plurality of tubular members assembled in truss like fashion. A single rear drive wheel driven by a multi-speed chain drive pedal crank assembly mounted on extended front frame to provide clearance for riders feet. Two front steerable wheels positioned with foreshortened wheel base are rotably mounted to the main frame and actuated by tie rods from a center pivot plate connected to a steering bar to provide short turning radius vehicle with improved steering for reduced rolling friction. Adjustable mounting location for steering push rod provides steering sensitivity adjustability. A seat mounted to the frame in front of rear drive wheel midway between the wheel base.
A handcycle having a hand drive mechanism for powering the cycle which includes an attitude control system having an elastomer member serving as a resilient member to resist leaning forces. The system includes adjustability to accommodate weights of various riders so that a proper stabilizing opposing force is applied. An adjustable steering angle mechanism is provided on the handcycle frame permitting smooth movement regardless of the steering angle.
A recumbent bicycle has a tubular frame member with a longitudinal axis running from front to rear. A rear support module includes a saddle for nestingly embracing a rear portion of the frame member. Cantilever support members extend downward from the saddle to free ends which are attached to an axle for a rear wheel. A head tube and bearing attached to the front of the frame member support a head shaft and a fork with a bifurcated lower portion suitable for mounting a front wheel. The fork lies generally in a plane and is supported, set forward of the head shaft, by extension plates such that the head shaft axis intercepts the fork plane. A drive sprocket assembly is at the front of the frame member. A seat assembly has opposing track slides engaging a track at the top of the frame member. The slides can be drawn together to clamp the track and fix the seat. The fork and rear support member are of such relative lengths that the front of the frame member is closer to a supporting surface than the rear of the member and, when the seat is moved along the track toward the sprocket assembly, it also moves toward the steering stem and the supporting surface.
