An arm and leg powered cycle using a linear reciprocating motion of arm and leg drive members to provide power. An elongated bicycle chassis has a forward and a rear wheel, a seat with a back rest for the operator, and lower and central support members. The arm drive member includes a rotatably mounted housing in which a plunger linearly reciprocates when an operator "rows" the plunger, using handlebars attached thereto. Pulling on the arm plunger tightens a cable attached at one end to the plunger and at the other end to a chain engaging sprocket, the sprocket being constrained to rotation in one direction by a one-way dog. The chain engaging sprocket engages a drive chain on the pulling or "drive" stroke, thereby pulling the chain through the stroke. This motion is transferred to drive the rear wheel through a series of gears and a transmission chain. Pushing on the leg drive member creates a drive stroke of the same type, also providing power to the drive chain. The arms and legs may be used either jointly or independently to power the vehicle. Steering is accomplished by shaping the arm plunger and the associated housing sheath so as to allow linear reciprocation but not rotation relative to one another. Thus, tilting of the handlebars rotates the drive housing which through a series of gears, turns a steering fork on which the front wheel is mounted, thereby steering the cycle.

The invention is a device for providing an upper body workout while riding a bicycle. The device comprises a base member which is secured to the bicycle. A lever is pivotally attached to the base member and drives a sprocket. The sprocket, in turn, drives a chain which drives a conventional bicycle crank shaft, thus aiding in propulsion of the bicycle. The rider uses one hand on the lever and the other hand grips the handlebars in a conventional manner. The lever has a handle which can be pivoted to either a left or a right side so as to provide a work out for the rider's left or right arm.

A steering assembly for use with a vehicle having a frame, with the frame being supported by at least one directional support (such as a rotatable wheel, ski, endless flexible track, etc.) that is pivotable about a first axis to steer the vehicle. The steering assembly comprises a first mounting member to which the directional support is secured, the mounting member being secured to the frame of the vehicle for pivotal motion about the first axis. A steering lever is mounted to the frame adjacent to the first mounting member, with the steering lever being pivotable about a second axis perpendicular to the first axis. The steering lever also has a drive pin associated therewith. A pivotable bearing block operatively connects the drive pin to the first mounting member. The bearing block includes a shaft that is received in the mounting block so as to permit rotation of the bearing block with respect to the mounting block about a third axis that is perpendicular to the first axis and is laterally displaced from the second axis. The bearing block includes first and second studs that project therefrom which capture the drive pin. Accordingly, when the steering lever pivots about the second axis, the bearing block pivots about the third axis and both the bearing block and the first mounting member pivot about the first axis, to rotate the directional support, thus effecting steering of the vehicle.

A tilt steering mechanism facilitating a large degree of rider position adjustment is provided for use in connection with a short wheel base recumbent bicycle. Bicycle comprises a front steerable wheel, and a foot pedal driving mechanism rotatably mounted to a frame such that the axis of the foot pedal driving mechanism is located forward of the rear most point of the front steerable wheel. A tilt steering mechanism rotatably mounted to a frame and located rearward of the axis of a foot pedal driving mechanism. Tilt steering mechanism comprising a fore aft tilt body, a steering lever body, rotational antifriction bearings, and a ball and socket joint or similar joint mechanism. The fore aft tilt body is rotatably connected to a bicycle frame whereby the fore aft tilt body may pivot about a pivot axis parallel to the axis of the foot pedal driving mechanism. The steering lever body is rotatably connected to the stem of the fore aft tilt body by rotational antifriction bearings whereby the steering lever body may pivot about a pivot axis substantially orthogonal to the axis of the rotational antifriction bearings. A ball and socket joint or similar joint mechanism is mounted on the steering lever body such that with the steering lever body in a substantially neutral steering position, the approximate rotational center of the ball and socket joint lies substantially on the pivoting axis of the rotatably frame mounted fore aft tilt body whereby fore aft adjustment of the steering mechanism will not affect movement of the front steerable wheel.

A rowing powered cycle is provided with a pair of rowing arms movable through a fore-aft reciprocal stroke motion and coupled to a drive mechanism for driving the cycle. The rowing arms are additionally coupled to a steering linkage for steering the cycle in response to left or right tilting movement of the rowing arms. Cycle steering may be performed simultaneously with reciprocal stroking motion of the rowing arms to drive the cycle, or during coasting movement.