Abstract: An exercise bench contains a frame (100), an overlying seat (102), a seatback (104) having a longitudinal centerline (124), a connection mechanism (106) for flexibly and/or adjustably connecting the seatback to the frame or/and the seat so that the seatback is at an adjustable angle (?) to the seat, and at least three pairs of symmetrically positioned handles (108L and 108R, 110L and 110R, 240L and 240R, 242L and 242R, and 250L and 250R) connected to the frame, the seat, the seatback, or/and the connection mechanism. The connection mechanism has a swivel axis (122) which extends generally parallel to the seatback's centerline and about which the connection mechanism is turnable to enable the seatback to swivel.

Abstract: A measurement assembly for determining a torque applied to a shaft including a disk coupled to a motor such that the motor is to drive rotation of the disk about a central axis. The measurement assembly also includes a first ring and second ring coupled to the disk and the shaft, respectively, and a sensor unit to measure a rotational displacement between the first and second rings about the central axis. The measurement assembly further includes one or more deformable members coupled between the disk and the shaft, each including a pair of ends and a body extending therebetween. For each deformable member, one of the ends is coupled to the shaft and the other end is coupled to the disk such that a rotation of the shaft relative to the disk about the central axis is to cause the deformation of the body.

Abstract: A portable transporting carrier for standard size buckets and for standard size propane gas tanks with wheels connected by an axle element and configured to position and support the bucket or the tank on the axle element and with an offset handle positioned over a center of gravity of the bucket or tank to facilitate lifting and carrying of the carrier with supported bucket or tank. The carrier is optionally convertible to a transportable working skid.

Abstract: A pedal-drive system for propelling multi-wheeled cycles includes two pedal level arms connected to a pair of two-bar linkages, which are drivingly attached to corresponding crank pins on each respective side of a common drive spindle, perpendicular to the cycle frame. The linkages rotate the said spindle per each pedal's downward stroke so that when one pedal arm is all the way down, the opposite pedal's crank pin is already beyond full up position, thus ensuring continuous rotation of the drive system. A sprocket on the spindle drives a chain, that drives a sprocket on a back wheel. For higher speeds, a typical bicycle multi-sprocket-cone and speed changing chain-derailleur may be incorporated. The pedal system may be used for small to large manually powered cycles, particularly scooters and bicycles, and may also include an auxiliary electric motor and battery for propulsion.

Abstract: An easy-pedaling and labor-saving bicycle includes a frame, a front and a rear wheel set, a transmission set driving the rear wheel set, and a pedal device driving the transmission set. The pedal device includes a crank disposed on the frame, a link-up member driving a rear link-up plate to rotate, a link-up strip disposed between one end of the crank and the link-up member, a pedal unit disposed at the other end of the crank, and a straining member disposed between the frame and the link-up strip. Pedaling the pedal unit makes the crank set as an extension of a moment arm for increasing a force moment imparting to the transmission set. The crank swings downward easily to allow the other end thereof to pull the link-up strip, whereby the link-up member, the transmission set, and the rear wheel are driven to pedal easily, save labor and drive quickly.

Abstract: A bicycle with a driving train has a continuous chain connecting the spindle connected front sprocket to the rear one way engaging other way ratcheting sprocket situated at the rear wheel hub. Two long fulcrum lever pedal bars are pivoted about two-thirds away from its front end to a bicycle frame. A connecting rod is connected pivotally to the rear end of each fulcrum lever pedal bars. The other end of each connecting rods are connected pivotally to their sides spindle arms, which are connected opposite to each other to the spindle. A pedal is fitted at the front end of both fulcrum lever pedal bars. Whereby, when the pedal is at its top position the rider's foot presses the pedal, thus the drive train is in motion. The other pedal is making its way to the top position. Pressing the pedal alternatively keeps the bicycle in continuous motion.

Abstract: A bicycle bottom bracket assembly that reduces the accumulation of dirt and/or corrosive substances inside the shaft extending between the crank arms of the assembly. The bottom bracket assembly includes a shaft having a through-cavity that extends along its longitudinal direction; a crank arm is associated with each end portion of the shaft, and the through-cavity extends unobstructed through the crank arms and the shaft.

Abstract: The present invention is an improved drive system for a personal vehicle comprising: a frame with a steerable front wheel and rear wheel connected to a drive axle connected to a crank arm by a drive linkage; a roller rotatably attached to the crank arm; a pedal pivotally attached to the frame having a cavity for receiving the roller; a contoured wear bar carried by the cavity for contacting the perimeter of the roller; a major arch included in the contoured wear bar contacting the roller when the pedal is on a down stroke; a minor arch included in the contoured wear bar for providing additional power when the pedal is near the end of its down stroke; and, a major front slope included in the wear bar for contacting the roller when the pedal is in its upstroke to place the pedal at its highest most position.

Abstract: A lever drive system for a scooter including a crank arm having a first distal end pivotally carried on a frame and operatively associated with a drive sprocket, wherein reciprocating movement of the crank arm causes rotation of the drive sprocket for moving a drive chain operatively associated with a wheel assembly. A footrest is disposed on the crank arm for operating the crank arm. A cam member is pivotally mounted to the frame generally adjacent the crank arm. A cam follower is carried by the crank arm engaging the cam member, wherein movement of the crank arm causes the cam follower to move along a contoured control surface of the cam member for controlling an up and down movement of the crank arm.

Abstract: The present invention is an improved drive system for a personal vehicle comprising: a frame with a steerable front wheel and rear wheel connected to a drive axle connected to a crank arm by a drive linkage; a roller rotatably attached to the crank arm; a pedal pivotally attached to the frame having a cavity for receiving the roller; a contoured wear bar carried by the cavity for contacting the perimeter of the roller; a major arch included in the contoured wear bar contacting the roller when the pedal is on a down stroke; a minor arch included in the contoured wear bar for providing additional power when the pedal is near the end of its down stroke; and, a major front slope included in the wear bar for contacting the roller when the pedal is in its upstroke to place the pedal at its highest most position.

Abstract: A drive mechanism effects a rotary power output in response to a reciprocating power input resulting from substantially linear forces applied to the drive mechanism, such as those forces applied by a rider on a bicycle. The drive mechanism includes input bevel gears meshed with corresponding output bevel gears coupled to a common power output shaft through clutches that effect a rotary power output at the power output shaft in response to the reciprocating power input from the substantially linear forces. Opposite crank arms are coupled with the input bevel gears such that each crank arm is advanced by an applied substantially linear force, and is retracted upon advancement of the opposite crank arm. In a bicycle, opposite pedals are coupled to corresponding crank arms and are moved through predetermined power strokes in response to substantially linear forces applied by a rider to effect corresponding rotational movements of the input bevel gears and concomitant rotary power output at the power output shaft.

Abstract: A vehicle has a cockpit area and lateral passages for the ingress and egress of a rider to and from the cockpit area. At least one lateral flexible cover selectively extends at least partially across at least one of the lateral passages. The cover has at least one upper attachment point connected to the roll cage, at least one lower attachment point connected to one of the frame and the roll cage, and a forward attachment point selectively connected to one of the frame and the roll cage. When the forward attachment point is connected to the one of the frame and the roll cage, the at least one lateral flexible cover extends forwardly and downwardly from the at least one upper attachment point to the forward attachment point, and forwardly and upwardly from the at least one lower attachment point to the forward attachment point.

Abstract: The present invention is a device which can be used to provide rotation motion to a driving wheel by the application of lateral motion by the user. It consists of axial track plate having a plurality of track paths with said guide paths having a plurality of slope sections. Additionally the caliper element can enable movement of a wheelchair's wheel from a first position to a second position. The caliper element is responsive to slope sections such that the slope sections can engage or disengage the caliper element. The caliper element's broad face is parallel to the track plate's broad face. The broad face is perpendicularly connected to each other via cylindrical pegs along the guide paths. The caliper element has a mating surface enabled to rotate a sprocket which is concentrically connected to a wheel hub where wheel rotates at the same angular velocity as the sprocket while the sprocket is in the engaged mode.

Abstract: A bicycle includes a front wheel attached to a front fork, a rear wheel attached to a rear fork, and a pair of cranks and a driving sprocket attached to a wheel hub of the bicycle frame, a foot pedal drive and propulsion device includes a shaft attached to the bicycle frame and located behind the rear wheel and disposed parallel to the rear wheel axle, a pair of levers each include a middle portion pivotally attached to the cranks and a rear portion slidably coupled to the shaft to form a retractable and telescopic structure, and a pair of foot pedals are adjustably attached to the front portions of the levers at selected positions for applying an increased driving torque to the cranks.

Abstract: A wheelchair comprises a main frame and a seat mounted on the main frame. A pair of front wheels and a pair of rear wheels are also mounted on the frame. A propulsion mechanism is provided for driving the rear wheels, the propulsion mechanism comprising an arm lever for forward and back movement and a gear train between the arm lever and the rear wheels.

Abstract: A mini bike for strengthening a leg muscle, and for enjoying amusement and a leisure time is provided. The mini bike having a pedal as a power generator includes: a driver having a first bevel gear in order to transmit rotation power generated by a rolling motion of a pedal; a second bevel gear installed to transmit rotation power generated in the driver; a first power transmission gear coaxially installed in the second bevel gear to transmit rotation power to a spline shaft; a clutch positioned at the spline shaft to selectively connect rotation power of the first power transmission gear to a first gearshift and a second gearshift and for controlling a low speed and a high speed; a first driving gear and a second driving gear for rotating by selection of the clutch; and a driving controller including a gearshift in which the clutch is connected to the cable in order to select the first gearshift and the second gearshift.

Abstract: A pedal-driven scooter includes a frame, a head tube, a driving mechanism and two pedals. The pedals can move alternatingly to power the driving mechanism and making the rear wheels to roll. Therefore, a user can standing on the pedals to operate the scooter without kicking the floor as the conventional scooter.

Abstract: A driving mechanism of the present invention includes a transmission disc, a transmission belt, a pair of cranks, a pair of arms, a pair of connecting bodies and a pair of pedals. The cranks and the arms are disposed on the frame of a bicycle, and the connecting bodies are disposed between distal ends of the cranks and the arms. Each pedal is disposed on the connecting body and is movable in an orbit. A vertical distance between the topmost point and the bottommost point of the orbit is H, and a horizontal distance between the front most point and a rearmost point is W, which satisfies the following relationship: H/W?5/3.

Abstract: An improved two wheeled reciprocating pedal driven scooter has a frame, front steering wheel, rear drive wheel, and rear wheel drive mechanism. The drive mechanism has two reciprocating foot pedals straddling the frame and extending to a forward hinge attachment location on the frame. The hinge location is at or above a drive axle. Each foot pedal has a short portion and an intersecting long portion forming a bend. The bend angle is 90 degrees or greater and is located at or below the frame. The attachment location of the foot pedal to the drive mechanism is at or near the bend. When the long portion of one foot pedal is at the bottom of the foot pedal stroke it is substantially horizontal, while the long portion of the other pedal is at the top of the stroke and is inclined to a maximum stroke angle of less than 35 degrees.

Abstract: A stepping scooter includes a scooter body for supporting a rider, a moving system, a driving system and a steering lever. The moving system includes a driving wheel rotatably connected with the scooter body, a driven wheel coaxially aligned with the driving wheel and rotatably connected with the scooter body. The driving system includes a driving arrangement pivotally connected to the scooter body, and a transmission and speeding up arrangement engaged with the driving arrangement to convert a human power applied on the driving arrangement into a rotation power to drive the moving system. When the human power is applied on the driving arrangement, the driving wheel is rotated so as to drive the driven wheel to move forward. On the other hand, the transmission and speeding up arrangement is capable of increasing a transmission velocity twice to save a physical force for the rider at the same time.

Abstract: Drive systems configured to combine arm power with leg power are disclosed. A drive system may comprise an arm power headset comprising: a joint assembly configured to provide forward and aft movement; and a mounting bracket coupled to the joint assembly and configured to align the joint assembly. The drive system may further comprise: a push/pull rod configured to convert forward and aft arm movement into rotary movement, the push/pull rod coupling the arm power headset to a first drive assembly; the first drive assembly comprising a first drive sprocket coupled to a first crank shaft; a second drive assembly adjacent the first drive assembly; and a linking device linking the second drive assembly with the first drive assembly.

Abstract: A cycle propelling mechanism includes a rail disposed on a cycle frame, two cranks rotatably coupled to the cycle frame with a main drive shaft, two levers each include one end pivotally coupled to the crank and the other end slidably coupled to the rail for allowing the levers to be moved cyclically relative to the cycle frame, and two foot pedals pivotally attached to the levers for being stepped and operated by user's feet and for allowing the cranks and the lever to be rotated relative to the cycle frame in an elliptical moving stroke and for allowing the foot pedals to be stepped and moved for a longer stepping or moving stroke by the user, and for effectively exercising the more or bigger muscle groups of the user, and for applying bigger power to the cycle propelling mechanism.

Abstract: A bicycle includes a frame, a pedaling device, a sprocket device, a stepping device and a clutch device. The pedaling device is furnished on the frame for a rider to perform pedaling operation. The sprocket device includes an axle pivotally coupled to the frame and a front sprocket rotatably mounted on the axle. The stepping device is connected between the pedal device and the sprocket device for transmitting power from the pedal device to rotate the axle and increasing moment of force of the pedaling operation by a reciprocal stepping operation. The clutch device is furnished on the frame for performing a first position to engage with the front sprocket so that the front sprocket is driven together with the axle by the stepping device to rotate, and a second position to disengage from the front sprocket so that the front sprocket is free from driven by the stepping device.

Abstract: The improved chainless drive of the present invention features a four speed planetary transmission housed within the hub of the driving wheel of an utility tricycle, and an 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 at end off the tricycle frame. The cam roller provides a downward force to counter balance the weight of the rider on the cantilevered forward end off the pedal beam increasing the force on the spindle and thus amplifying the torque delivered to the drive shaft.

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: An Ellipticycle features a conventional bicycle front wheel assembly which is joined by two parallel lengths of bicycle tubing to a cast aluminum gear case within which a multiple speed transmission is enclosed. A crank shaft extends out through bearings in the left and right side halves of the gear case at its forward end with a crank arm fixed on each end of the crank shaft. A pedal beam is rotatably mounted near its center on a spindle fixed in the end each crank arm. A cam roller bolted on each side of the gear case at its aft end engages a short length of steel angle riveted on the inside of each pedal beam providing a downward force to counter balance the weight of the rider on the cantilevered forward portion of the pedal beam. A length of aluminum tubing is bolted on each side of the gear case at its aft end and encloses a drive shaft which passes out through bearings in the gear case.

Abstract: A drive apparatus for converting a substantially linear driving force to a rotary propulsive force, the apparatus including a pedal assembly for accepting a substantially linear drive force and fixed structure assembly for converting the substantially linear drive force to a rotary propulsive force.

Abstract: A bicycle free from the conditions of having any part of the bicycle in the area between its wheels or horizontally adjacent to that area, except its pedal member and frontal portions of levers. A bicycle with two lever propulsion (14 and 15) machines having two levers formed in an approximate “L” shape. The shorter side of the “L” would be closely vertical and longer side would be closely horizontal when either lever is rotated to its lowest position. The pedaling system can also reciprocate with use of a high strength chain 6, having ends connected to the mid-portion of its levers. This chain 6 can be pulled over at least one mounted sprocket 56, mounted to the frame 4. Each lever is suspended above the ground by their connection to a member pivotal arm 53 suspended within the frame 4. The bicycle further has a reverse mechanism 30 to enable the bicycle to move backwards.

Abstract: A vehicle (100) has a foot rest (111) on the frame (110), forwardly of the crankset (130) (with pedals (132)). The frame (110) and the arms (112) connecting the rear wheel (121) to the frame (110) have a height not greater than the height of the rear wheel (121) to enable the vehicle (100) to be operated as either a scooter or a bicycle.

Abstract: The present invention discloses an exercise and transportation device such as a bicycle that includes a frame having a drive wheel rotatably supported thereupon. The bicycle includes a first and a second foot support members, which are powered by the user. A coupler assembly directs the first end of each foot support members in an arcuate path of travel, and a vertical support coupled to the front section of the frame at one end directs the second end of each foot support member in a reciprocating path of travel. A power transfer linkage is in mechanical communication with the coupler assembly and with the drive wheel. When the device is in use, a user's foot disposed upon the foot link travels in an elliptical path of travel and provides power to the foot link. This power is transferred to the drive wheel by the power transfer linkage to propel the bicycle.

Abstract: A bicycle crank mechanism comprises a main crank, a follower crank, and a connecting lever disposed between free ends of the main and follower cranks. A second fixed fulcrum shaft of the follower crank is arranged obliquely upwardly and backwardly of a first fixed fulcrum shaft of the main crank, the follower crank extending downward beyond a line connecting the first and second fixed fulcrum shafts from the second fixed fulcrum shaft such that the second free fulcrum shaft is swung below the line connecting the first and second fixed fulcrum shafts. A pedal is attached to a projection end of the lever and arranged in the vicinity of the free end of the main crank, the pedal being rotated along a non-circular track passing between the first and second fixed fulcrum shafts, and the first fixed fulcrum shaft being located at an internal area of the track.

Abstract: A drive system for use in a bicycle or the like, which includes a manually-operable member and a drive train connected to the member for transferring drive from the member to at least one of the bicycle wheels. The member is mounted for substantially rectilinear reciprocating movement on a lever system having a first lever, a second lever and a tie rod. The first lever has a first end connected to a first pivot and a second end that is rotatable about the first pivot. The second lever has a first end that is pivotably connected to the second end of the first lever and a second end to which the manually-operable member is attached. As for the tie rod, it has a first end pivotably connected to the a second pivot and a second end that is pivotably connected to the second lever between the first and second ends thereof. The first lever is constructed and arranged for limited reciprocating rotation of the second end about the first pivot.

Abstract: The following invention is directed to a pedal powered two wheel scooter. The invention discloses a scooter having a steerable front wheel assembly, a rear wheel assembly and a frame linking the front and rear wheel assemblies. The scooter has a drive mechanism comprising front and back crankshafts rotatably attached to the frame and attached to left and right pedals. The front crankshaft transmits power to the rear wheel by means of a front sprocket gear, a continuous chain and a rear sprocket gear. In another embodiment the drive mechanism comprises a front crankshaft rotatably attached to the frame that is also attached to the right and left pedals by means of a freewheel ratchet mechanism with the other end of the right and left pedals attaching to a see-saw bar that pivotally engages the frame in a position between the left and right pedals.

Abstract: An occupant propelled vehicle is provided that includes a frame having a front portion and a rear portion, front and rear wheels, a platform, a steering mechanism and a drive mechanism. The drive mechanism may include a drive sprocket mounted on the frame, a driven sprocket, an endless chain provided around the drive sprocket and driven sprocket, and a pedal for an occupant to drive the drive sprocket and propel the vehicle in a forward direction.

Abstract: A self-propelled exercise device such as a bicycle includes a frame having a drive wheel rotatably supported thereupon. The bicycle includes a first and a second foot link which are powered by the user. A coupler assembly directs the first end of each foot link in an arcuate path of travel, and a foot link guide directs the second end of each foot link in a reciprocating path of travel. A power transfer linkage is in mechanical communication with the coupler assembly and with the drive wheel. When the device is in use, a user's foot disposed upon the foot link travels in an elliptical path of travel and provides power to the foot link. This power is transferred to the drive wheel by the power transfer linkage so as to propel the bicycle.

Abstract: This invention relates to a drive mechanism for a scooter or similar vehicle. A pair of opposed rotatable crank arms are mounted to a drive gear on the frame. Each crank arm is attached to a footboard that is itself rotatably mounted to the frame. The footboard is mounted further from the axis of the crank arms than the distance from the axis of the crank arms to the point at which they contact the footboards. Reciprocating downward pressure on each footboard drives rotation of the crank arms which in turn drive a wheel of the vehicle.

Abstract: An occupant propelled vehicle is provided that includes a frame having a front portion and a rear portion, front and rear wheels, a platform, a steering mechanism and a drive mechanism. The drive mechanism may include a drive sprocket mounted on the frame, a driven sprocket, an endless chain provided around the drive sprocket and driven sprocket, and a pedal for an occupant to drive the drive sprocket and propel the vehicle in a forward direction.

Abstract: The following invention is directed to a pedal powered two wheel scooter. The invention discloses a scooter having a steerable front wheel assembly, a rear wheel assembly and a frame linking the front and rear wheel assemblies. The scooter has a drive mechanism comprising front and back crankshafts rotatably attached to the frame and attached to left and right pedals. The front crankshaft transmits power to the rear wheel by means of a front sprocket gear, a continuous chain and a rear sprocket gear. In another embodiment the drive mechanism comprises a front crankshaft rotatably attached to the frame that is also attached to the right and left pedals by means of a freewheel ratchet mechanism with the other end of the right and left pedals attaching to a see-saw bar that pivotally engages the frame in a position between the left and right pedals.

Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if entered, therefrom. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth movement of the pedal is assured. Such a smooth movement can be kept enough by the dust cover.

Abstract: A drive system for use in a bicycle or the like, which includes a manually-operable member and a drive train connected to the member for transferring drive from the member to at least one of the bicycle wheels. The member is mounted for substantially rectilinear reciprocating movement on a lever system having a first lever, a second lever and a tie rod. The first lever has a first end connected to a first pivot and a second end that is rotatable about the first pivot. The second lever has a first end that is pivotably connected to the second end of the first lever and a second end to which the manually-operable member is attached. As for the tie rod, it has a first end pivotably connected to the a second pivot and a second end that is pivotably connected to the second lever between the first and second ends thereof. The first lever is constructed and arranged for limited reciprocating rotation of the second end about the first pivot.

Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if entered, therefrom. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth movement of the pedal is assured. Such a smooth movement can be kept enough by the dust cover.

Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A crank lever is connected between a sprocket and the one of pedal levers. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved, not fixed, in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. With such an arrangement, a configuration of the rotating force transmitting mechanism for the rear wheel is simplified. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth rotation of the pedal is assured.

Abstract: A recumbent apparatus for exercise and physical therapy providing a lower body workout, an upper body workout and cardiovascular conditioning, the apparatus comprising a frame having a forward end and a rearward end, the frame generally defining a longitudinal axis extending between the forward and rearward ends, a seat supported by the frame, a left leg assembly and a right leg assembly, the leg assemblies supported by the frame for pivoting movement about a pivot axis transverse to the longitudinal axis, the leg assemblies positioned generally toward the forward end and each including an upwardly extending leg lever terminating in a pedal, a left arm assembly and a right arm assembly, the arm assemblies supported by the frame for pivoting movement also about the pivot axis, the arm assemblies positioned generally toward the forward end and each including an upwardly extending arm lever terminating in a handle, the left leg assembly being connected to the right arm assembly enabling movement therewith and de

Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if entered, therefrom. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth movement of the pedal is assured. Such a smooth movement can be kept enough by the dust cover.

Abstract: A human propulsion vehicle with at least two wheels (3, 5) comprising a first frame (1), handlebars (4) rotatably mounted onto the first frame (1) and connected to at least one wheel (3), a second frame (8) integrally connected to the first frame (1) at the front portion thereof and above said handlebars (4), and a seat (6) and a seat back (7) for the person is provided, the vehicle being characterized in that it further comprises a pair of cranks (10) for driving the propulsion energy with a swinging reciprocating motion around an axis of rotation (100), and a crown (9) connected thereto apted to convert the swinging reciprocating motion of the cranks (10) in a one-way rotary motion around said axis of rotation (100) and the seat back (7) being apt to provide a thrust reaction member for the person when forcing on the cranks (10).

Abstract: This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if entered, therefrom. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth movement of the pedal is assured. Such a smooth movement can be kept enough by the dust cover.

Abstract: A protective apparatus for use in an industrial vehicle having an operator station including a protective member adapted to be connected with the vehicle so as to be generally disposed above the operator station. The protective member has a plurality of apertures configured to allow sound waves from vibrations of the vehicle to propagate through the protective member while generally preventing solid objects from falling through the protective member.

Abstract: A pedal arm as a lever member is supported at its fulcrum by a roller, which is held for movement in a guide groove. A crank pin in an eccentric position on a gear is coupled to the point of action of the pedal arm, whereby the rotation of the gear is transmitted to a rear wheel.

Abstract: A rowing machine with a body frame assembly and actuated by a seated user. It includes a stabilizing wheel assembly with the ends of a pivotally mounted axle provided with wheels. A pivotally mounted front wheel assembly is designed for steering the machine and a rotably mounting rear wheel for supporting the bulk of the user's weight as it is transmitted the seat assembly to the frame of the machine and to the rear wheel. The steering mechanism includes a novel steering linkage rod connecting the fork supporting the front wheel and the pivotally mounted axle where the stabilizing wheel assembly is rotably mounted. The approximate distance from the pivoting axis of the front wheel to the point on which one end of the steering linkage is pivotally mounted corresponds to 3 inches. The length of the steering linkage rod is approximately 27 and 5/16 inches.

Abstract: An upright in-line cycle having a frame, front steerable wheel, drivable rear wheel, drive sprocket, driven sprocket, oscillatory steering levers, a fork assembly, a drive crank assembly, and drive with connecting rods operably connected such that the oscillatory levers are pivotally mounted on the fork joumaled to connecting rods such that the oscillatory levers are substantially perpendicular to the connecting rods and the connecting rods are substantially parallel to the plane of the ground. The oscillatory levers and connecting rods are operably connected so that the alternate pushing or pulling on the oscillatory levers drives the cycle forward, convening upper body energy into rotational energy. The manner in which the oscillatory levers are journaled to the forward end of the connecting rods, by tie rod ends or two-way joints, permits the levers to pivot in a lateral left or right direction thereby permitting steering of the front wheel.