Abstract: A hardtop vehicle roof having at least two rigid roof parts, at least one of which can be adjusted, by a roof part kinematic system, between a closed position in which the vehicle interior is covered and in which the roof parts are arranged one behind the other in the direction of travel, and a storage position exposing the vehicle interior. The roof part kinematic system of the roof parts is arranged on the outside of at least one roof part facing away from the vehicle interior.

Abstract: There is disclosed a reinforcement member with a carrier member and a reinforcement material disposed on the carrier member.

Abstract: A structural panel for an automotive vehicle includes an outer panel and a variable strength inner panel attached to the outer panel. The inner panel utilizes active elements formed from shape memory alloy (SMA). A controller activates the SMA elements so as to transform the inner panel from a normal state to a higher strength state in the event of an impact directed against a vehicle.

Abstract: A drip molding supported by a pillar at a corner of the front or back of a vehicle, for draining waterdrops entering a side edge of a front or back windowpane. The drip molding has a base attached to the pillar; a part for sealing a gap between the base and the side edge; and a lip part extending from the base to the front surface of the windowpane to form a drainage path between the lip part and the windowpane. On the outside of the lip part, a bent surface is arranged so as to form an arc bending toward the front surface of the windowpane, and an inner face of the lip part is formed in a manner such that the larger a distance from the head toward the root of this part, the larger the distance between this inner face and the front surface of the windowpane.

Abstract: The headrest cover of the present invention can be viewed as a sleeve that can be draped over the conventional headrest of a vehicle seat back. Preferably, the sleeve encloses part, or all, of the headrest. The main function of the headrest cover is to enhance the safety of the passenger by shortening the distance between the back of the passenger's head and the front surface of the headrest. The front portion of the headrest cover includes a compartment in which a plurality of shock-absorbing cushions are deployed so as to extend outwardly from the front surface of the vehicle headrest toward the region of the normal head position of the passenger. The shock-absorbing cushions are preferably arrayed substantially vertically within the compartment. The shock-absorbing cushions are configured so as to be interchangeable. The thickness, number, shape and shock-absorbing properties of each shock-absorbing cushion determine the amount of forward extension of the compartment.

Abstract: A mechanism for a vehicle seat is includes a seat bottom supported by the vehicle and a seatback coupled to the seat bottom. The mechanism includes a first adjustment mechanism connected to the vehicle seat and operable between a locked position and an unlocked position and a first powered remote activation device coupled to the first adjustment mechanism. The first powered remote actuation device includes a motor and a transmission element operable to toggle the first adjustment mechanism into the unlocked position.

Abstract: A method of regulating the weight of a chair comprising a base frame (2) to support a seat face as well as a spring system (3) having adjustment means (20, 21), wherein the resilience of the chair is adjusted by unloaded adjustment means, and the adjustment is performed by moving one or more of the adjustment means (20, 21) at a time along a portion of the circumference of the base frame (2), and wherein the adjustment means adjusted first performs a coarse adjustment, following which a fine adjustment is performed with a second adjustment means.

Abstract: A motion support apparatus comprising an elongated member composed of an elastomeric material and having a pinch-free exterior surface, the elongated member including a first end attached to a support surface and a second end secured to an underside of a user supporting member to provide a range of motion to the user supporting member through the flexing and bending of the elongated member while preventing the presence of potential pinch points thereon.

Abstract: A seating area adjuster for a seat of a vehicle includes a seating member having a seating surface, a support portion supporting the seating member, an adjustment mechanism connected with the seating member and supported by the support portion to be movable in an adjustment direction in which a length of the seating surface is adjusted and rotatable about a shaft extending perpendicular to the adjustment direction and to an up and down direction of the adjustment mechanism, a movement mechanism moving the adjustment mechanism in the adjustment direction relative to the support portion, and a rotation control mechanism controlling the adjustment mechanism to a predetermined rotational position corresponding an amount of a movement of the adjustment mechanism in the adjustment direction.

Abstract: A vehicle seat apparatus includes a lower arm, an upper arm being rotatable relative to the lower arm in a front-rear direction of a vehicle seat, a pressing member fixed at the upper arm, a base member fixed at the lower arm, a first link supported by the base member so as to be rotatable and having a stopper pin positioned on a rotation path of the pressing member when a walk-in operation is performed and positioned out of the rotation path of the pressing member when a tilt-down operation is performed; and a second link rotatably supported by the first link and maintaining the stopper pin so as to be one of on and out of the rotation path of the pressing member, the second link being provided in a manner where a rotational axis thereof is coaxial to a central axis of the stopper pin.

Abstract: A portable chair attachable to a suitcase. One embodiment includes a foldable wheeled frame configured to rotate around a single axis, a fabric chair back, and a strap to secure the chair to a suitcase.

Abstract: A grain transport trailer includes a frame having wheels secured thereto. A hopper is secured to the frame. The hopper has side walls arranged in a spaced-apart relationship to one another to define an interior region. The side walls are arranged to slope convergingly toward a discharge chute. A number of nozzles are coupled to the hopper and positioned to introduce high-pressure gas into the interior region.

Abstract: A mining plow with a plow basic body which can be guided on a conveyor and which has on an inclined bearing surface a pivoting bolt for the pivotable mounting of a cutter carrier for each plow travel direction Two cutter carriers are mounted pivotably on respective pivoting bolts by a pivot bearing such that each cutter carrier is guided on a pivoting surface oriented concentrically about the pivot axis of the associated pivoting bolt and formed below the bearing surface on the plow basic body. The pivot bearing of each cutter carrier includes an open-edged receptacle, each cutter carrier being located on the pivoting bolt parallel to the bearing surface in a pivoting mounting position.

Abstract: A rock boring device includes a rotary disc cutter. The disc cutter is driven in an oscillating manner and may be driven or free to nutate, and the device includes a mounting section for the rotary disc cutter and a driven section. The mounting section may be angularly offset from the axis of the driven section whereby the rotary disc cutter can oscillate and/or nutate.

Abstract: A rotatable cutting tool includes a cutting tool body that has an axial forward end and an axial rearward end. The cutting tool body further has an axial length. There is a hard tip, which has a distal end, affixed to the cutting tool body at the axial forward end thereof. The cutting tool body has a clearance portion axial rearward of the distal end of the hard tip wherein the clearance portion has a transverse dimension. The clearance portion includes an axial forward transverse dimension and a minimum transverse dimension that is axial rearward of the axial forward transverse dimension. The axial forward dimension is greater than the minimum transverse dimension. The clearance portion has an axial length equal to between about ten percent and about thirty-five percent of the axial length of the cutting tool body.

Abstract: A cutting tool body includes a net-shaped steel body that has an axial forward end and an axial rearward end. The net-shaped steel body contains at the axial forward end thereof a cold-headed socket. The net-shaped steel body further contains a cold-headed puller groove axial rearward of the cold-headed socket.

Abstract: A method and apparatus for continuously making a brush mat for brush manufacture integrates a continuous source of extruded and cut filaments with forming an extrusion of thermoplastic material on an end of the filaments to form the brush mat. The brush mat can then be cut and used in its straight configuration or shaped in a ring or other form as part of a subsequent brush making step.

Abstract: A tire-wheel assembly having a wheel with a rim and a pneumatic tire mounted on the rim, the pneumatic tire having a cavity inside for charging air. The pneumatic tire has a cavity's resonant frequency Fc arising from the cavity, and the wheel has a plurality of natural frequencies. The difference between the cavity's resonant frequency Fc of the pneumatic tire and the natural frequency Fw of the wheel closest to the cavity's resonant frequency is 10 Hz or more.

Abstract: A wheel frame assembly includes a hub, a rim surrounding the hub, and a plurality of spokes. Each of the spokes extends between the hub and the rim, and has at least one bent section that is compressible and deformable elastically. Therefore, sufficient elastic deformability and shock absorbability can be provided by the wheel frame assembly.

Abstract: A rim and a method for manufacturing a rim, in particular for a bicycle, includes a rim body and multiple spoke holes in the rim body for receiving at least part of a spoke and/or spoke nipple. The rim body consists of a fiber-reinforced material including a thermoplastic matrix material. Separate rim eyelets are provided located at the spoke holes and connected with the rim body.

Abstract: A wheel for a motorcycle comprising a rim section to which a tire is mounted, a hub section including an outer tubular section and an inner tubular section, and a plurality of spoke sections connecting the rim section and the hub section to each other. The hub section is configured to reduce machining steps during manufacture.

Abstract: A bicycle hub has an axle and a hub shell rotatably disposed about the axle with a plurality of spoke fixing parts disposed at opposite ends of the hub shell. Each of the spoke fixing parts has a through hole having a small width section extending from a first side of a corresponding one of the spoke fixing parts and a large width section extending from a second side of the corresponding one of the spoke fixing parts such that an internal abutment is formed between the small and large width sections. The securing elements are removably disposed in the large width sections of the spoke fixing parts of the hub shell with each of the securing elements having a threaded bore that is aligned with and substantially equal to the small width sections of the spoke fixing parts of the hub shell.

Abstract: A drive axle assembly comprises an axle tube, a hub assembly mounted to an outer end of the axle tube and carrier member mounted to an inner end thereof. The axle tube is mounted to the hub assembly and the carrier member so that a central axis of the hub assembly intersects a transverse axis of the carrier member at an angle to substantially equal to a predetermined toe angle of a wheel of the drive axle assembly.

Abstract: A control system for a vehicle combination comprises a towing vehicle and a trailer, with an electronically activatable drive train. A manual operator control device, which is fixed on the towing vehicle, can be used by the vehicle driver to input a driving request for manual operation of the vehicle combination, from which request a standardized movement vector is generated. A control device (19), which is fixed on the towing vehicle, outputs control signals for activating the drive train based on an input movement vector. For the transmission of the control signals, the control device is coupled to the drive train, which processes the control signals to implement the driving request. To improve the functionality of the control system, a trailer coordination device, which is mounted on the towing vehicle, can be used to read in at least one trailer-specific actual value and pass on the actual value to the control device.

Abstract: The present invention relates to an electro-hydraulic unit (10) in particular for an automotive vehicle anti-locking wheel device, said electro-hydraulic unit being of the type comprising two separate parts: an electronic control (13) within which is located particularly an electronic card (14), winding (17) as well as an electric motor (15) provided with a rotor and a stator, said motor being adapted to drive a pump, and a hydraulic unit (11), comprising the pump and a plurality of valves (12), the whole electronically directed by the control (13), said electro-hydraulic unit being characterized in that it comprises moreover: a ferromagnetic circuit (22) common at least partially to the stator and to the winding (17).

Abstract: A brake control system includes at least one wheel cylinder that receives the work fluid to apply a braking force to a corresponding vehicle wheel, a wheel cylinder pressure control system that controls the control pressure applied to the at least one wheel cylinder by controlling the supply of the work fluid thereto, a first abnormality determination unit that determines whether an abnormality in the wheel cylinder pressure control system based on an initial response characteristic of the control pressure after a braking request within a predetermined abnormality determination time, and a second abnormality determination unit that determines whether the abnormality in the wheel cylinder pressure system is present based on a comparison between the control pressure and a reference pressure based on which the determination is made with respect to the abnormality within a predetermined second abnormality determination time that is set to expire before expiration of the first abnormality determination time.

Abstract: A motor vehicle has an inclinometer to determine the steepness of the slope upon which the vehicle stands, brakes and a driver brake pedal for generating a braking effort in the brakes. The brakes are also controlled by a brake hydraulic control unit and an electronic control unit. The brake hydraulic control unit is arranged to control the release of the braking effort generated to stop the vehicle on a slope by the brake pedal at a release rate which varies as a function of the steepness of the slope determined by the inclinometer following operation of the brake pedal to release the brakes. The vehicle thus achieves controlled descent of a hill after a stationary position. Such a brake control system is particularly advantageous to a motor vehicle having a hill descent mode.

Abstract: A braking force maintaining apparatus executes hill-hold control in which braking force applied to each of wheels of a vehicle is maintained by a braking device even after release of a brake pedal. An electronic control unit determines whether the yaw rate of the vehicle is greater than or equal to a predetermined threshold value and whether the wheels are held in a locked state by the braking force applied by the braking device. If the wheels are held in the locked state and the yaw rate is greater than or equal to the threshold value, the electronic control unit controls the braking device in such a manner that the braking force acting on two or more of wheels including at least a specific wheel falls below the braking force at the start of the hill-hold control.

Abstract: A pulsed power source minimizes current ripple disturbance in a main power supply by dividing the pulsed load into a plurality of pulsed sub-loads. The pulsed power source includes a plurality of pulsed load power supplies, each pulsed load power supply receiving charging power from the main power supply and providing pulsed energy to one of the plurality of pulsed sub-loads. Pulsed energy delivered to each of the plurality of pulsed sub-loads is out of phase with the other pulsed sub-loads, resulting in the input current provided by the main power supply having a reduced current ripple magnitude and increased current ripple frequency.

Abstract: A signaling device for a safety circuit has an input part for receiving an external state variable, at least one switching element and a control part. The control part controls the at least one switching element as a function of the external state variable, such that a signal applied to the input is communicated to the output. According to one aspect of the invention, the input of the switching element is internally connected to a fixed potential, preferably a fixed High potential. In a safety circuit for turning off a hazardous installation, such signaling devices are connected in series with one another to a safety controller. In such an arrangement, the control part of the downstream second signaling device also controls its switching elements as a function of the output of the first signaling device.

Abstract: An object is to provide a semiconductor device in which it is possible to determine whether or not a minute delay time given by a delay circuit is within a specified value or not, and a method of testing the semiconductor device. In response to a data strobe signal TDQS for testing, the delay circuits DC0 and DC1 produce delay data strobe signals IDQS0 and IDQS1 delayed by delay times DT0 and DT1. Outputted as a reverse signal from the inverter INV0, is a reverse data strobe signal RIDQS0 in response to the delay data strobe signal IDQS0, and delayed by an allowable delay time IT. Inputted into the NAND gate ND0, are the reverse data strobe signal RIDQS0 and the delay data strobe signal IDQS1. When, in comparison with the phase of the delay data strobe signal IDQS0, the phase of the delay data strobe signal IDQS1 is delayed by the allowable delay time IT or more, a pulse signal PL0 is not outputted from the NAND gate ND0.

Abstract: There is provided a linear motor in which the number of armature windings can be reduced, and an armature iron core can be readily fixed to a member for supporting the armature iron core. Each of three inductors 1A to 1C is so arranged that a tooth row 7 therein is located on each side thereof in a width direction thereof orthogonal to a moving direction of an armature 3. The three inductors are arranged spaced apart from each other by a predetermined spacing in the width direction. An armature iron core 9 of the armature 3 includes four magnetic pole portions 15A to 15D and three yoke portions 17A to 17, and is constituted by a plurality of electromagnetic steel plates laminated in the moving direction of the armature 3. The four magnetic pole portions 15A to 15D are arranged in parallel and spaced apart from each other by a predetermined spacing so that each of the three inductors 1A to 1C is positioned within the spacing.

Abstract: A motor includes a plurality of linearly activated pistons, positioned radially around an axis, which are selectively and sequentially biased against on offset element to produce rotation of a rotatable element about the axis. The motor further includes an power source, which may be electrical, pneumatic or hydraulic and a structure for supporting the pistons, the offset element and the rotational element, and providing direction of a desired motion.

Abstract: A light amount adjusting device mounted with a driving device which can have a reduced size in the direction of thickness. In this controller, a magnet is formed into a hollow circular disk shape and has at least one disk surface magnetized to have alternately different poles in the circumferential direction thereof. A rotor yoke is supported by a bobbin for rotation relative to the magnet, and has magnetic pole parts extending radially of the magnet and facing the magnetized disk surface of the magnet. A stator yoke is disposed on the side remote from the rotor yoke with respect to the magnet and fixed with the magnet. A coil is fixed to the stator yoke and magnetizes the magnetic pole parts of the rotor yoke. Shutter blades are disposed radially inside the magnet.

Abstract: A multi-polar rotary machine comprises a cylindrical outer rotor arranged concentrically with the stator and with an air gap therebetween. The stator has two spaced stator elements and a ring shaped permanent magnet held between the stator elements and magnetized so as to form N and S poles in the axial direction of the stator. Small axially separated stator teeth A and A and B and B are formed on the outer peripheral surface of the spaced stator elements. Stator windings for A phase and B phase are wound around the respective stator elements. The small stator teeth A, A, B and B are circumferentially shifted from corresponding small rotor teeth by a ¼ pitch of the small stator teeth, respectively. Each of the stator and rotor is formed of pressed powder comprising a soft magnetic material at least one of a resin and an inorganic material.

Abstract: A device for locking a power tool and a rechargeable battery pack that is insertable in a guide of the power tool has a locking bar installable on a housing of the power tool and held in locking engagement with the rechargeable battery pack via spring force, a release mechanism that acts on the locking bar for manually releasing the locking bar from the locking engagement, the locking bar and the release mechanism forming a lever that is pivotally supportable in a rocker pivot on the housing, the locking bar being fixedly held via spring force and a recess formed at a top side of the rechargeable battery pack and is releasable by pivoting the lever from the locking engagement via a compression force applied to the release mechanism, which extends upwardly across a front base end of the housing.

Abstract: A rotor balancing system is provided that includes a rotor core, a plurality of core channels, a support wedge, a wedge channel, and balance masses. The rotor core includes an annular section, a first pole, and a second pole. The first and second poles each extend radially outwardly from the annular section and form an interpole region therebetween. The plurality of core channels are formed in the rotor core annular section and extend axially through the rotor core annular section. The support wedge is disposed in the interpole region. The wedge channel is formed in the support wedge and extends therethrough. One or more balance masses are selectively disposed in one or more of the core channels and the wedge channel, and each balance mass is disposed at a predetermined axial location to thereby correct rotor imbalance.

Abstract: According to the invention, a human-propellable luggage which converts motion of the luggage into conditioned electrical power is provided. The luggage may have a body, chassis, wheel, generator and power supply circuit. The body may be configured to support an object and to be moved by a force exerted by a user. The wheel may define an axis of rotation and be coupled with the body. The wheel may be configured to be in contact with a surface and rotate about the axis of rotation when the body is moved relative to the surface. The generator may be coupled with the wheel and may be configured to convert the rotation of the wheel about the axis of rotation into electrical power. The power supply circuit may be coupled with the generator and be configured to receive the electrical power from the generator and condition the electrical power for use externally.

Abstract: A shock-absorbable electricity-producing apparatus comprises an electricity generator and an electricity-producing module. The electricity-producing module includes a rack, first and second gears, and a spring buffer. The rack is synchronously driven by a shock absorber. The spring buffer is located between the first and second gears. The first and second gears are engaged with the rack and an axial gear of the electricity generator, respectively. An electricity output terminal of the electricity generator is connected to an electric device. As a result, the rack drives the first gear by means of gravity drop that forms during movement of the shock absorber to enable the electricity generator to produce electricity. Consequently, the shock-absorbable electricity-producing apparatus absorbs shocks and produces the electricity insensibly without causing burden and resistance.

Abstract: A pump driven by an outer rotor and having an annular ferrite magnet with grain alignment on its inner periphery comprising a housing, a wheel blade, a stator and an outer rotor surrounding the stator, wherein the pump uses the wheel blade to draw and deliver fluid in the water sucking area. The pump is characterized in that: the rotor includes a rotating disk and the annular ferrite magnet fixed on the inner periphery of the disk, the magnet is a multipolar anisotropic permanent magnet, the main body of the magnet is divided into a magnetic conductive outer layer and a magnetic inner layer, in order that fluxes of the magnetic inner layer turn back right away when they pass the outer layer to thereby shorten magnetic loops, to increase magnetic force and the effect of magnetic energy accumulation, and to increase the efficiency of the pump rotated by the rotor.

Abstract: In axial magnetic bearing apparatus in which a rotary disc made of a magnetic material is fixedly attached to a rotating shaft, and electromagnets are disposed on opposite sides of the rotary disc so as to have suitable very small distances therefrom respectively, so as to bear the rotating shaft axially in a non-contact state, a deep groove for forming an air layer having large magneto-resistance is provided all over the outer circumference of the rotary disc. Thus, formation of a magnetic circuit not contributing to position control is relieved, and the weight of the disc is reduced so that the position control performance of the axial magnetic bearing and the natural frequency of a rotor are improved.

Abstract: A new and useful frictionless suspension structure is provided, that can be used with structures such as axles, hinges and other similar types of structures (especially structures where one member rotates relative the other member) can produce various attractive features such as significant energy savings, preserving component life, etc. A frictionless suspension structure comprises a first member with at least one magnet connected thereto and a second member with at least one magnet connected thereto. The magnets connected with the first and second members are configured and oriented with respect to each other to (i) establish respective magnetic fields that interact to suspend one of the members from the other member in a predetermined self centered orientation without physical contact between the members, and (ii) maintain the one of the members suspended from the other member in the predetermined self centered orientation without physical contact between the members.

Abstract: An induction machine includes a stator provided with stator windings and a first rotor provided with first rotor windings, and generates an induction current in one of the stator windings and the first rotor windings by a rotating magnetic field generated in the other of the stator windings and the first rotor windings. A synchronous machine includes a second rotor which is provided with second rotor windings connected to the first rotor windings and coupled to the first rotor, and a third rotor which is provided with permanent magnets and rotatable independent of the second rotor, and a torque acts between the second rotor and the third rotor due to the interaction between the rotating magnetic field generated in the second rotor windings and the field flux generated in the permanent magnets.

Abstract: An electric rotating machine which comprises: a magnet rotor which has a rotor yoke having a magnetic attachment surface extending in a peripheral direction, and multiple permanent magnets for constituting a magnetic field which are intermittently arranged in the peripheral direction of the rotor yoke and are attached on the magnetic attachment surface; and a stator in which armature coils are wound around an armature core having a magnetic pole portions opposed to magnetic poles of the magnet rotor, wherein a large number of grooves which extend in the peripheral direction of the rotor yoke are provided on the magnet attachment surface of the rotor yoke.

Abstract: This high-voltage transformer can regulate the leakage inductance accurately and easily. Winding frames of a primary-side winding (6), a secondary-side winding (7), and a magnetic-coupling adjusting winding (8) are provided so that the primary-side winding (6), the secondary-side winding (7), and magnetic-coupling adjusting winding (8) are placed in a common magnetic path. A part of either the primary-side winding (6) or the secondary-side winding (7) is wound around the frame of the magnetic-coupling adjusting winding (8). The frames of the primary-side winding (6) and the secondary-side winding (7) can be formed into a common frame, and the primary-side winding (6) and the secondary-side winding (7) can be wound superimposedly around the common winding frame. The frames of the primary-side winding (6) and the secondary-side winding (7) can be so provided on both sides of the frame of the magnetic-coupling adjusting winding (8) as to sandwich the frame of the magnetic-coupling adjusting winding (8).

Abstract: A DC brush-free motor or fan rotated by an outer rotor having an annular ferrite magnet with grain alignment on its inner periphery, the main body of the motor or fan is composed of a base, a stator and an outer rotor surrounding the stator; the outer rotor includes a rotating disk and the annular ferrite magnet fixed on an inner periphery of the rotating disk, the annular ferrite magnet is a multipolar anisotropic permanent magnet, the main body of the annular magnet is divided into a magnetic conductive outer layer which is not magnetic and a magnetic inner layer, fluxes of the inner layer turn back when they pass the outer layer to thereby shorten the magnetic loops, and to increase magnetic force and the effect of magnetic energy accumulation. When the motor runs, the outer rotor drives a rotating axle (on the base) extended out of a housing to put out power and to be a power output axle of the motor.

Abstract: A pole assembly for a rotor, the pole assembly includes a permanent magnet pole including at least one permanent magnet block, a plurality of laminations including a pole cap mechanically coupled to the pole, and a plurality of laminations including a base plate mechanically coupled to the pole.

Abstract: One aspect of the invention is a generator with at least two commutators mounted on a rotatable shaft. At least two magnetically conductive bars may be mounted in an opposed relationship with at least one of the bars passing through a wire coil. At least two magnets may also be mounted in an opposed relationship. The bars and magnets may be mounted such that they extend between the commutators. In various positions, a magnetic field passes through the two commutators, one of the bars and one of the magnets. The magnet field in the bars changes due to rotation of the shaft and current is induced into the wire coil.

Abstract: A hybrid-excited rotating machine comprising: a stator winding 12 of a multi-phase Y-connection; a plurality of rotor magnetic poles 21, 22, 23, 24, 25, 26, 27, 28 fixed on a rotor shaft 3 at a predetermined spacing in the circumferential direction and confronting the inner circumference of said stator 1 through a air gap; a plurality of permanent magnets 51, 52, 53, 54, 55, 56, 57, 58 fixed at substantially central portions of said circumferential direction of said individual rotor magnetic poles and magnetized in the radial direction of said rotor shaft; and a plurality of field windings 61, 62, 63, 64, 65, 66, 67, 68 wound individually on said rotor magnetic poles.

Abstract: An armature apparatus for brushless and brush type electric motors and a manufacturing method for same armature. The armature represents and improved design for electric motors having a rigid, thinwall configuration and high conductor packing density in the magnetic flux air gap that results in motors with higher torque and speed capabilities and the ability to operate at higher temperature than conventional motor designs. The armature is fabricated from pre-machined copper sheet metal parts with an electrical conductor pattern of numerous axially extending conductive bands. These precision machined sheet metal parts are cold rolled to form two work hardened cylinders, each cylinder having a complimentary pattern of electrically conductive bands creating a half-electric circuit. The two cold rolled metal cylinders are sized such that the smaller diameter inner cylinder fits inside the larger diameter outer cylinder.