Abstract: A bicycle dynamo having enhanced power dynamics by having a large number of magnets 63 in alternate polarity lined up at a fixed interval along the inner circumference of the rotating mechanism 60. A circular lining 70 is outfitted and anchored around the perimeter of the main axle 20 with a transformer strapped to it. The transformer container a coil unit 81 and tow core parts; with the two core units sandwiching the coil unit 81 at its two sides. Each of the core unit is a stack having two or more core discs 82a, 82b. At an even interval around the circumference of the core disks 82a, 82b, fixed number of raised anchors 821a, 821b are formed that interconnect with different core disk anchors 821a, 821b to form a fixed set of the claw unit. Furthermore, each of the claw unit from the two core components 82 are extended out between the coil unit 81 and the magnets 63.

Abstract: A motorized wheel hub assembly includes a sealed motor section having first and second coaxial shafts extending from the motor section, the second shaft being a rotary shaft and a gear reduction section adjacent to the motor section, the gear reduction section including a pinion at the end of the rotary shaft, a plurality of planet gears rotatably mounted to the housing in meshing engagement with the pinion and a third shaft connected to the motor housing, all of the shafts being separate but coaxial. A hub having an interior surface closely surrounds the motor and gear reduction sections and is rotatably coupled to the first and third shafts. A ring gear formed in the interior surface of the hub is in meshing engagement with the planet gears so that when the second shaft rotates at a selected speed, the hub rotates relative to the first and third shafts at a lesser speed. Preferably, the hub is partially filled with oil to conduct heat from the motor section to the outside.

Abstract: A non-brush type low cost direct current motor for all electric bicycle, the motor is comprised of a housing and a lateral lid which form the internal receiving space for itself. A mandrel extends into two central holes respectively of the housing and the lateral lid, both ends of the mandrel are exposed for mounting two front fork tips of the bicycle. A sheet silicon steel core having a coil to be electrically activated is slipped over the mandrel. An annular inner surface is provided on the housing and allows mounting of a metal collar which can be adhered on the inner surface. Multiple magnets are arranged one by one to form an annular magnet layer. The external periphery of the sheet silicon steel core forms a gap with the annular magnet layer. When the coil is electrically activated, it automatically drives the bicycle. Thereby, a direct current motor of light weight and with low fault, low rubbing damage and low noise, and without gears and brush for a rechargeable low cost electric bicycle is provided.

Abstract: A double-sided, non-iron core, brushless, axial magnetic field permanent-magnet type DC motor includes a shaft, two electromagnet units parallelly mounted on the shaft, and a permanent magnet unit mounted on the shaft between the electromagnet units and having its direction of magnetization disposed in parallel to the shaft. The permanent magnet unit is allowed to rotate relatively around the electromagnet units by being forced by magnetic repulsion force from both sides. Electromagnetic areas at the electromagnet units are arranged in a staggered manner, enabling permanent steel magnets at the permanent magnet unit to be alternatively fully induced from its two opposite sides to provide a high torsion output. The electromagnetic areas of the two electromagnet units are caused to change the phase alternatively at a 90.degree. phase difference, so that vibration and dead section problems are eliminated during the operation of the DC motor.

Abstract: A drive unit for transport devices comprises a spindle (1) with a stator (2) and, mounted on said spindle so as to be capable of rotation, a rotor (3), all these elements forming an electric motor (4) and a rim (5). The device is provided with permanent magnets (6, 7, 8, 9), cores (10) with coils (11), and sensors (12) for determining the angular position of the rotor (3). The rotor (3) is designed as concentric shells (13,14) and joined to the rim (5). The permanent magnets (6, 7, 8, 9) are mounted on the sleeves (13, 14), each magnet facing another magnet of opposite polarity; on each sleeve (13, 14) permanent magnets (6, 7, 8, 9) are mounted so that their polarity alternates. The stator (2) is located between the permanent magnets (6, 7, 8, 9) and carries the coils (11) with cores (10), the coils being connected around the periphery to the stator (2) and arranged with gaps between themselves and the permanent magnets (6, 7, 8, 9).

Abstract: A bicycle electricity generator is provided including an annular stator and an annular rotor, both of which are coaxially mounted on a bicycle wheel axle in a position between a bicycle wheel hub and a fork, wherein the stator is fixed either on the wheel axle or on the fork; the rotor is fixed in connection with the bicycle wheel hub, the rotor's rotating center being coincident with the rotating center of the bicycle wheel; a rotating force transmitting member made of a resilient material for transmitting a rotating force from the hub to the rotor is provided in a position between the rotor and the hub so as to form frictional engagement with both the rotor and the hub, wherein either an auxiliary transmitting structure is provided for auxiliarily transmitting a rotating force from the bicycle wheel hub to the rotor and wherein one portion of the auxiliary transmitting structure is fixedly secured with respect to the rotor and another portion of the auxiliary transmitting member is fixedly secured with resp

Abstract: An autonomous generation brake having a dynamo, following rotation of a first rotor of an annular magnet in the core area an even number of armature coil with alternating polarities inside the first stator on the outer periphery are induced to produce an alternate current potential to be rectified at a rectifier wherefrom rated direct current is delivered to stimulate respective magnetic coils on the second stator of a braking device enclosing the dynamo; the second stator clamping internally a second rotor of a metal checked heat diffusion ring so that once the second rotor turns in rotation and respective magnetic coil on the second stator are stimulated, the interrelated movement occasioned thereby will induce a vortex upon the second rotor, meantime produce a braking torque sufficient to rapid diffusion of magnetically induced heat as well as the braking heat. Magnitidue of the direct current outgoing from the rectifier maybe regulated by a pulse regulator.

Abstract: A bicycle dynamo with a rotary-current generator having a stator and a rotor which can be rotated relative to the stator. The stator or the rotor has radially extending pole fingers which are wound individually with one surrounding magnetic coil winding respectively. The ratio of the number of poles of the rotor to the number of poles of the stator is a non-integer value, and the ratio of the number of poles of the stator to the number of poles of the rotor is a non-integer value. This permits the implementation of a bicycle dynamo of a high efficiency even at a relatively low riding speed, which may be used, for example, to power bicycle lighting systems.

Abstract: A magnet motor stator where a magnet of a pole of a stator includes multiple magnets. Each magnet can be flat and made from rare-earth materials. It is thus possible to manufacture these magnet motor stators at a lower cost accompanied by a reduction in size and weight for the magnet motor.

Abstract: An electric generator assembly for supplying power to electrical devices on a bicycle. The electrical generator assembly includes a gearwheel fixedly secured and rotatively coupled to a bicycle wheel proximate a hub axis of the bicycle wheel, a rotor housing, an annular stator disposed within the rotor housing, and a rotor disposed concentrically within the annular stator. The electric generator assembly further includes an arm extending from the rotor housing and configured for detachable attachment with a portion of the bicycle frame proximate the hub axis of the bicycle wheel. The rotor is driven by a rotor-driving gear disposed outside the rotor housing. The rotor-driving gear is configured to mesh with an output gear of a gear train for transmitting power from the bicycle wheel. An input pinion, configured to mesh with the gearwheel, is rotatively coupled to the input gear of the gear train.

Abstract: A bicycle generator including a coil stator and a magnetic rotor. The coil stator includes a planar support, and an induction coil portion formed by a plurality of series-connected coil units which are evenly spaced along the circumference of the planar support. The magnetic rotor is rotatable relative to and substantially parallel to the coil stator, and includes a permanent magnet having a plurality of magnetic pole pairs formed on its circumference. The number of coil units in the induction coil portion is equal to the number of magnetic pole pairs in the magnetic rotor, and the coil units is winded into trapezoid or sector shape, and the span angle of each of the magnetic pole in the magnetic rotor is substantially equal to the span angle of each of the coil units in the coil stator. Alternatively, the bicycle generator may comprises a cylindrical coil stator and a cylindrical magnetic rotor.

Abstract: A bicycle generator-containing hub having a hub spindle (6), a hub body (2) rotatably mounted on the hub spindle (6), and a generator (10) disposed inside the hub body (2).The generator includes a cylindrical magnet assembly (12) having north poles and south poles arranged alternately along an inner peripheral wall of the hub body (2), and a plurality of generating coil units (11a, 11b, 11c) arranged inside the cylindrical magnet assembly (12) and axially of the hub spindle.Each of the generating coil units includes a first core element (50a, 50b, 50c) and a second core element (60a, 60b, 60c) opposed to each other axially of the hub spindle, and a generating coil (14) disposed between the first and second core elements to be coaxial with the hub spindle. The first core element has magnetic poles (51a, 51b, 51c) arranged at intervals in peripheral positions thereof and extending toward the second core element.

Abstract: A motor for motorcycles includes a shaft, a rotor, an inner housing covering the rotor, a sun and planet gear unit, a generator, an outer housing, and a clutch as main components. The generator produces electricity to charge a battery when the motor moves the motorcycle so that the battery is always fully charged for operating the motor. The clutch will not engage a wheel of the motorcycle to rotate until rotation of the motor reaches a preset speed.

Abstract: An electric power generator has a housing having an inner cavity having a center and an inner circumferential surface spaced at a varying radial extent from the center. A magnetic flux generator has a body offset from a point of rotation. The magnetic flux generator is rotatable at the center. The magnetic flux generator has a central passageway for slidably receiving a shaft with a magnet. The magnetic flux generator has a coil mounted about the central passageway in an inductive relation with the magnet. A spring is disposed between the shaft and magnetic flux generator for urging the shaft into contact with the inner circumferential surface whereby as the housing rotates, the magnetic flux generator rotates relative to the housing urging the shaft to travel along the inner circumferential surface causing relative back and forth motion of the shaft through the passageway inducing a voltage in the coil.

Abstract: A power generating apparatus for a bicycle, in particular, a racer type bicycle such as a road racer and a mountain bike, is disclosed. The power generating apparatus of the present invention composed of a power generating unit and a mount stay having suitable means for mounting the power generating unit on a bicycle. In this power generating unit, a rotor is integrated with a cylindrical circumference portion of a housing of the power generating unit. The mount stay is fitted on a front portion of a frame of a bicycle with a bolt. On this mount stay, the power generating unit is detachably mounted so that the rotor may rotate by the tire of the bicycle in contact with the cylindrical circumference portion of the rotor.

Abstract: The disclosure herein describes a lighting device which is adapted for use with a wheel bicycle and which includes a magnet mounted to one of the wheels and a housing mounted to the bicycle frame. A solenoid inside the housing has a winding and a core closely mounted to the wheel. A lamp is electrically connected to the solenoid winding so that light is emitted as a result of the magnet passing by the solenoid core as the bicycle wheel rotates. The electrical system includes storage elements which accumulate an excess of electrical energy during wheel rotation to thereby allow light to be emitted after the bicycle has come to a stationary position and until the excess has been used up.

Abstract: An electrical generator system is provided for use with a wheel, for example, a bicycle wheel. A bracket rotating with the wheel carried generator units each having a friction wheel to drive it. A fixed circular disc which is non-rotatable with the wheel is symmetrically arranged in the plane of the wheel. The friction wheels rotate to drive the generator units, the output of which is combined and directed to an appliance such as a lamp.

Abstract: An electric machine within a hub housing rotatably disposed on an axle. A magnetic rotor is mounted on and can be rotated about the axle and is driven by the rotation of the hub housing by means of a transmission. The magnetic rotor comprises a central support carrying a plurality of axially aligned permanent-magnetic rods arranged in a star-shaped configuration. A coil assembly in the form of a cylindrical shell is arranged around the magnetic rotor. This design results in a compact and easy to assemble configuration with an overall efficiency higher than 0.5.

Abstract: An electric generation system includes an electric generator swung in a orbit and having an external contact surface for rotation of its armature by a rolling engagement with an enlarged band. The band can be turned relative to the generator within a larger diameter retaining ring so that the band is constantly radially inclined at its contact point with the generator contact surface.

Abstract: A self-powered back-up alarm for mounting to the wheel hub of a heavy truck or like vehicle. The alarm includes a housing adapted to be mounted to a vehicle wheel hub. Inside the housing is a magnetized stator that is held stable by a counterweight mounted for free rotation to a spindle in the housing. Also mounted in the housing is a power supply including a coil positioned adjacent the stator in the housing and attached thereto so that it rotates about the stator when the wheel hub turns. A battery stores the energy developed across the coil when the wheel hub rotates. Also mounted inside the housing are sensors located adjacent the stator that similarly rotate with the wheel hub. The sensors, in combination with an associated detect circuit, produce a reverse motion signal whenever the vehicle backs up. An audio alarm, located in the housing, is actuated by the reverse motion signal and emits an audible warning whenever the vehicle backs up.

Abstract: A built-in generator arranged within a hub of a bicycle wheel including a hub member of a wheel rotatably fitted on an axle fixed to a frame of the bicycle, a stationary hollow cylinder fixed to the axle in the hub member, a generating coil unit provided in the stationary hollow cylinder and fixed thereto, a rotor formed integrally with a magnet rotatably provided on the axle, and a planetary transmission device for transmitting rotation of the hub member to the axle at increased speeds. The planetary transmission device is formed of at least one planetary roller device which includes a sun roller integral with the magnet and rotatably provided on the axle, a plurality of planet rollers arranged to be circumscribed on the sun roller, a planet carrier rotatably supporting the planet rollers, and an elastic ring circumscribing on the planet rollers. The planet rollers are in pressure-contact with the elastic ring and the sun roller.

Abstract: A power supply device for bicycles is specified, in which a disk-shaped armature (44) is arranged in a fixed manner between permanent magnets (47, 48) rotating with the hub of a wheel. The armature is constructed as copper-coated insulating armature having conductor tracks in rotary current technology. Neither carbon brushes nor other wearing parts are present, so that a closed housing can be used (FIG. 1).

Abstract: A lighted hubcap includes a cap body that has an outboard side and an opposing inboard side. When the cap body is secured to the wheel of a passenger vehicle, the outboard side faces away from the vehicle. At least one light emitter is incorporated in the cap body so that it emits light from the outboard side of the cap body when energized. A permanent magnet assembly is pivotally secured to the cap body and weighted so that the permanent magnet assembly is in a generally fixed orientation with respect to the passenger vehicle. Electrically conducting windings are secured to the inboard side concentrically about the permanent magnet assembly and are connected to the light emitters. The windings are in magnetic flux coupling relationship with the permanent magnet assembly so that upon rotation of the wheel and, concomitantly, the windings about the generally fixedly oriented permanent magnet assembly, alternating current is generated in the winding for energizing the light emitters.

Abstract: Lighting device for a vehicle moving without an engine and on wheels, such as bicycle and tricycle, comprising two lights supplied from a generator (1) comprising a stator and a rotor drivable by a vehicle wheel through projecting members (34) cooperating with the spokes (34) from said wheel, said generator (1) comprising at least sixteen heteropolar poles (27) distributed over 360.degree. facing an induction winding formed by a single coil (26) also extending over 360.degree., said poles (27) and coil (26) being movably mounted relative to one another, and the stator being so fastened to a vehicle fork (23) that the generator (1) be co-axial with the axis (21) of that wheel driving the rotor.

Abstract: An external-rotor dynamo for the rear wheel of a bicycle is pivotable about an axis parallel to its axis of rotation. The rotor is pressed toward the wheel rim by a helicoidal torsion spring secured along the axis of rotation in separate bearings. One of these bearings is angularly adjustable via a quick-acting but releasable ratchet.

Abstract: An electricity generator is attached to a rotating body having a case secured thereto. The case houses a plurality of rotary members which cannot revolve around the axis of the case but are rotated around their own axes as the case is rotated. A permanent magnet is supported by the rotary members and is rotated in a direction opposite to the direction of rotation of the case. A coil attached to the case generates an alternating current when the permanent magnet is rotated.

Abstract: A signalling wheel cover, including inner and outer housings, is provided with lights around the circumference of the outer housing which sequentially illuminate as the two housings rotate with respect to one another. The outer housing is secured to a vehicle wheel. Coils, to which the lights are connected, are mounted to the outer housing. The inner housing, to which magnets are mounted, is rotatably secured relative to the outer housing to allow independent rotation of the two housings. As the wheel carrying the outer housing begins to rotate, the inner housing tends to resist the rotation due to its inertia. This resistance to rotation can be enhancedd by adding a counterweight to the inner housing so the inner housing is mounted pendulously. As the coils rotate through the magnetic fields of the magnets, current flow is induced in the coils which causes illumination of the lights in a sequential pattern.

Abstract: A wheel mounted hub containing an electrical generator which is pivotally supported in arms of a yoke. The yoke and generator have an offset center of gravity, tending to give the yoke and generator a pendulum-like behavior within the housing. During wheel rotation, the generator tends to remain along a gravitational line of force, forcing a small wheel associated with the generator to turn against the hub. Around the outer periphery of the yoke, yet within the hub housing, is a circuit board which carries a power utilization circuit, so that the electrical path between the generator and the utilization circuit is very short. The circuit board may carry auxiliary circuits such as a current limiter, a generator disengaging circuit, a daylight deactivating circuit and a circuit for allowing operation regardless of direction of rotation.

Abstract: A bicycle ergometer includes an eddy current brake having a rotor assembly including an iron material having a carbon content of 0.12% or less and a silicon content of 0.35% or less, a stator provided in the rotor assembly, a plurality of exciting coils provided on the stator, and a power source for energizing the exciting coils. The ergometer includes an input panel for inputting physical attributes of the user, e.g., age and sex, a pulse sensor for measuring the heart rate of the user at rest and during exercise on the ergometer, an arithmetic control circuit for calculating a training program and heart rate range and for controlling the eddy current brake to present a load to the user which will maintain the user's heart rate in a predetermined range. The method of using the ergometer enables a user to select a physical strength program and a weight reduction program with the selected program reflecting the age, sex, and the present physical condition of the user.

Abstract: A generator has a rotor attached to one of a pair of spoke suspending hub flanges rotatably mounted on an axle of a bicycle and a stator fixedly mounted on the axle. The generator includes a hub drum having a disc portion and a rim portion, the disc portion being concentrically fixed on an outer surface of the one hub flange and formed at its central portion with a through hole through which the axle is rotatably inserted, the rim portion being integrally formed on an outer circumferential edge of the disc portion so as to project in the direction of an outer surface of the disc portion. An annular magnet assembly constituting the rotor is attached on an inner circumferential surface of the rim portion.

Abstract: A generator assembly characterized by a pair of plates driven in opposite directions, and a pair of generators each engaged with one of the rotating plates. The generators are attached to a generator support bearing supported by a central shaft that is rigidly attached to a first plate and which is rotatably coupled to a second plate. A third plate and a drive gear are used to rotate the second plate in a direction opposite to that of the first plate.

Abstract: A hub and dynamo arrangement includes a wheel hub rotatable about the axis of a fixed shaft; a dynamo having an annular stator carried by the hub, an annular armature disposed radially inwardly of the stator and a current collector fixed to the armature for leading off current generated by the dynamo, the armature being mounted for rotation about the axis of the shaft independently of the hub; a control device for selectively arresting and permitting rotation of the armature about the axis of the shaft, whereby electric current is generated when the armature is arrested, the control device including a contact member mounted for radial movement relative to the axis of the shaft and mounted in a position such that the radial movement effects current-transmitting and rotation-locking engagement with the current collector; and an electrically-conducting, actuating wire attached to the contact member, both for transmitting current from the contact member, and for applying mechanical actuating force to the contact

Abstract: A dynamo-electric cycle axle which resides inside an axle of a bicycle, motorcycle, wheelchair, etc. An axle cylinder with curved permanent magnets mounted to its inner periphery serves as a rotor. A stator, rotating on ball bearings, generates electricity which is conducted to various accessories by a unique arrangement which allows the positive lead of an accessory to be plugged directly into the invention. The entire assembly is resistant to environmental hazards such as precipitation and salt spray. Easy lubrication injection for the ball bearings is provided.

Abstract: A generator assembly characterized by a hubcap and an elongated arm attached at a first end to a central portion of the hubcap such that it may freely rotate therein. A generator is attached to the second end of the arm which is operative to produce electrical power as the hubcap rotates. Because of the generator's offset position there is a "step-up" effect of the mechanical power supplied to the generator, thus increasing the electrical power developed by the generator. The elongated arm can also be attached to the wheel lugs of the wheel by a suitable frame, or may be manufactured as an integral part of a wheel or hubcap.

Abstract: Generators which comprise, within a casing, an armature and a permanent-magnet cylinder surrounding said armature, either of these two components serving as a stator with the other as a rotor to rotate in union with a rotary shaft, and which may supply electromotive force from a coil in said armature.Said armature comprises a cross-shaped 4-pole core and a coil; said coil is wound on a bobbin, placed on one of the two straight core components, in parallel with the other core component.The directions of the coil windings in one half of the coil and in the other half are opposite to each other.The above structure is effective for increasing the efficiency of power generation, reducing the size and weight, and cutting down the manufacture cost.