Abstract: An object of the present invention is to provide a highly efficient and highly reliable rotary electric machine. A rotary electric machine includes: a stator around which a plurality of coils are wound; and a rotor which is supported to be freely rotatable with a predetermined gap with respect to the stator. The coil has at least one connection portion per turn in a slot of the stator. Conductors to be connected mutually have steps at the connection portion, and are fitted with other conductors so as to mutually fill the steps. The steps have contact surfaces that come into contact with each other in the slot to be electrically conducted. A thermally expandable sheet capable of pressurizing the coil in a radial direction of the stator is arranged in the slot.

Abstract: A manufacturing method of a stator according to the disclosure includes a clamping process of clamping, among coil ends of segment coils assembled into a stator core, a pair of coil ends adjacent to each other in a circumferential direction, by a clamp jig that presses the pair of coil ends in the circumferential direction, and a welding process of welding the coil ends exposed through an opening portion provided in the clamp jig. The clamp jig includes a pressuring structure that increases a pressing force in a direction away from weld faces of the coil ends welded in the welding process, the pressuring structure being provided on at least one of sideward pressing faces that come into contact with side faces of the coil ends that are provided orthogonal to the weld faces.

Abstract: A metal detectible plastic material, including a plurality of plastic particles defining a plastic portion and a plurality of high magnetic permeability metallic particles distributed throughout the plastic portion to define an admixture. The plastic particles and the metallic particles are generally the same size and shape, and each respective high magnetic permeability metallic particle has a magnetic permeability of at least 0.0001 H/m. The plastic particles are selected from the group consisting of high molecular mass polymers, thermoplastics, thermosetting polymers, amorphous plastics, crystalline plastics, resin-based materials, and combinations thereof.

Abstract: To provide an iron core and a motor for preventing reduction in motor drive efficiency. An iron core includes laminate section made up of a lamination of plural soft magnetic ribbons, fixed to metal substrate, and provided with winding, and fastening part that pressurizes laminate section in a lamination direction of soft magnetic ribbons. Also, the fastening part is disposed around an opening of through-hole that penetrates laminate section. Furthermore, a metal plate shaped so as not to cover winding section is provided between laminate section and fastening part. Besides, the motor includes a rotor and the iron core.

Abstract: A brushless motor includes: a columnar rotor including magnets; a stator including at its center a space for placing the rotor; a housing member that houses the rotor and the stator; and a detector that detects a signal dependent on a rotational position of the rotor based on variation in a magnetic field associated with a rotation of the rotor. The housing member includes a front bell that supports a portion of the rotating shaft of the rotor and a housing body that supports another portion of the rotating shaft of the rotor. The front bell includes a mount fitted with the detector. The mount projects from the base toward an end face of the rotor.

Abstract: A coil former provides for restricted cross-over locations for a coil resulting in an optimum wire packing at all points within the coil. The coil former has a first side wall in a spaced relation to an opposing second side wall, wherein a cavity formed between the side walls accommodates multiple turns of wire for forming a coil. A block is fixed between the opposing first and second side walls and has its peripheral wall surface tapered from the first wall surface inwardly toward the opposing second wall surface for preferentially receiving and positioning turns of wire forming the coil.

Abstract: The present invention relates to an electric machine, in particular a brushless permanent magnet motor, comprising a stator which comprises a plurality of teeth having at least one needle-wound winding strand, the at least one winding strand having at least two windings on adjacent teeth which are arranged in series, the at least two windings each comprising at least one winding layer, a needle channel being provided which is formed between the at least two windings by a crossing portion of the at least two windings and is filled at least in part. The present invention further relates to a method for winding a coil of an electric machine.

Abstract: A stator of a rotating electric machine includes: a plurality of teeth having a same shape are arranged in a radial direction toward a rotary shaft core with base ends thereof being coupled to a core back in a ring shape; a slot formed between the adjacent teeth; a flange portion formed projecting to opposite sides of apical ends of the teeth; a slot inlet formed between the adjacent flange portions; a winding area formed around each teeth; and a wire wound via an insulator having a same shape in each winding area. A first wire is wound around first teeth provided alternately, and a second wire is wound around second teeth put between the first teeth, and the first wire and the second wire are wound in a different shape in a sectional shape of opposing portions.

Abstract: A method of manufacturing a stator includes a first winding step of, with annular conductors of a first coil portion being placed in a coil holding unit, inserting the annular conductors into the respective slots by a coil pushing-out unit; and a second winding step of, after the first coil winding step, with annular conductors of a second coil portion placed in the coil holding unit, moving a positioning unit in an axial direction at least from one end of the stator core to the other end of the stator core in the axial direction, and inserting the annular conductors into the respective slots by the coil pushing-out unit while a part of the first coil portion, which is located in the slots, is pressed in a direction from the opening of the slot toward an inside of the slot by the radial end faces of the projecting teeth.

Abstract: A method and device for winding a rotor or a stator (2), of a rotary electrical machine, having a series of teeth (21) which are delimited by notches (22). In each notch there are inserted M continuous electric wires (3) constituting a turn; M being equal to 1 or more, characterised in that n×M wires (3) are wound simultaneously in a number n of notches (22), n corresponding to the number of phases and being ?2. The assembly of the M wires (3) constituting a phase, being inserted in a single notch (22). The device for winding has at least two carriages (4, 5), with a series of teeth, delimited by n notches (40, 50). And, likewise corresponding to the winding, each set of M continuous electric wires (3) constituting a turn, is characterised in that M×n wires (3) are inserted simultaneously in the extension of the n notches (22) of the rotary electrical machine in the n notches (40, 50) in the respective carriages (4, 5).

Abstract: In a method for manufacturing an axial air-gap electronic motor, a plurality of core member and a plurality of dummy members are prepared, wherein each of the dummy members has a shape same as that of the core members. Then, the plurality of core members is arranged such that teeth surfaces of the core members face each other, and the dummy member is arranged between predetermined core members. Thereafter, a coil is wound from one end side toward the other end side of the core members through the dummy member continuously without cutting. A part of the coil corresponding to a transition wire set between the core members is wound on the dummy member.

Abstract: The present invention provides a stator core winding method for a motor and a structure thereof. The method includes preparing a stator core including a plurality of core cavities; winding a pair of second-phase coils into the plurality of core cavities of the stator core; winding a pair of first-phase coils, a pair of the second-phase coils and two pairs of third-phase coils into the plurality of core cavities of the stator core; and winding two pairs of the first-phase coils, a pair of the second-phase coils and a pair of the third-phase coils into the plurality of core cavities of the stator core.

Abstract: A method of winding an electric motor core member includes continuously winding a single conductor about a portion of an electric motor core member, and separating the single, continuously wound conductor into multiple phase windings.

Abstract: A winding device (1) for a multi polar armature, which simultaneously winds a plurality of wire rods (5) onto a core (7) on which a plurality of winding cores (9) are arranged circularly, includes an index mechanism (11) for rotating the core (7) about a central axis thereof, a nozzle (3) for reeling out the plurality of wire rods (5), and a nozzle moving mechanism (12) for moving the nozzle (3). Every time the nozzle (3) completes a single revolution around the winding core (9), a twist (6) occurring in the wire rods (5) is undone by having the index mechanism (11) cause the core (7) to perform a single revolution about a central axis (T) thereof and having the nozzle moving mechanism (12) cause the nozzle (3) to follow the winding core (9) as the core (7) performs the single revolution.

Abstract: An apparatus for winding wire about a tooth of a core includes an amount of wire, a winding member configured to receive a portion of the amount of wire, and a winding device operatively coupled to the winding member. The winding device being configured to apply a number of wraps of the amount of wire to at least one of a plurality of teeth of the core. The number of wraps including a number of twists that is fewer than the number of wraps.

Abstract: A method of winding a flexible core includes forming a flexible core member having a first end portion, a second end portion and a plurality of teeth each having a central axis with the plurality of teeth being arranged in a substantially linear array. The method also includes manipulating the flexible core member into an inverted core form having an outer portion and an inner portion with the plurality of teeth extending out from the outer portion away from the inner portion, positioning a winding member including an amount of wire adjacent one of the plurality of teeth, and rotating the flexible core member about the central axis of the one of the plurality of teeth. The method further includes applying wraps of the wire to the one of the plurality of teeth.

Abstract: In a stator winding method for winding conductive wires 8 around teeth 4a to 4f of a stator core 4 having 3n teeth 4a to 4f and 3n slots 5a to 5f by use of a bobbin machine 12 having three nozzles 13, the slots 5a to 5f on both sides of the teeth 4a, 4d, 4f in the nth winding process are formed, in respective slot portions on the side of the teeth 4a, 4d, 4f in the nth winding process, so that respective depths “A” are all smaller than respective depths “B” of the remaining portions. At the final stage of the nth winding process, the nozzles 13 are moved from the interior side of the slots 5a to 5f toward the inner circumferential side of the stator core 3 and furthermore, the conductive wires 8 are wound around the teeth 4b, 4d, 4f so that each gap 14 between the conductive wires 8 wound around the teeth 4b, 4d, 4f and the conductive wires 8 wound around the teeth 4a, 4c, 4e is smaller than an outer diameter of the nozzle 13.

Abstract: A winding apparatus includes a head 12 that supports a nozzle 11; a head support shaft 13 that supports the head 12; a traverse shaft 14 that rotates about an axial center independently of the head support shaft 13 and is connected to the head support shaft 13 in an axial direction; a shaft connecting device 15 that connects the two shafts 13, 14 such that when the head support shaft 13 rotates about the axial center, the rotation thereof is transmitted to the traverse shaft 14, but when the traverse shaft 14 rotates about the axial center, the rotation thereof is not transmitted to the head support shaft 13; a head rotating mechanism 16 that rotates the head 12 about the axial center by rotating the head support shaft 13 such that the traverse shaft 14 rotates in synchronization with the head support shaft 13; a nozzle moving mechanism 18 that moves the nozzle 11 in an axial diametrical direction by rotating the traverse shaft 14 such that the traverse shaft 14 rotates relative to the head support shaft 13;

Abstract: A rotor for a brushless motor is resistant to degradation in alternative fuels and has desirable magnetic properties. A stator for a brushless DC motor includes coils wound both clockwise and counterclockwise around teeth of a back iron. Pairs of the coils are electrically connected in parallel.

Abstract: A winding machine for winding wire on a stator stack for a dynamo-electric machine including a wire supply, a stripper station for selectively stripping wire at predetermined locations, a wire feed mechanism and winding station including a winding spindle movable in reciprocating and oscillating movement. The feed mechanism is capable of conveying plural wires to the winding spindle including three pairs of wires to respective exit apertures on the winding spindle. The winding station includes twisting assemblies, where a twisting assembly is provided for each pair of wires for twisting the pair of wires together and for gripping and manipulating the wires during a winding operation.

Abstract: An apparatus for manufacturing an internal wound stator includes a winding arbor configured to receive a conductive wire. The apparatus also has a stator loader, and receives a stator having a generally cylindrical shape with an interior opening and having a plurality of axial slots formed therein. The interior dimension of the stator is larger than the exterior dimension of the winding arbor such that the winding arbor and stator may traverse with respect to one another. The apparatus also has a first movable member configured for moving at least one of the winding arbor and the stator. The apparatus also has a second rotating member configured to rotate at least one of the stator and the winding arbor. The conductive wire is introduced through an interior of the winding arbor. The first movable member is configured to move at least one of the winding arbor and the stator relative to one another to wind the conductive wire in a first longitudinal manner and into a first of the plurality of axial slots.

Abstract: It is an object of the invention to provide a technique for easily installing many turns of a coil winding on a stator. Representative method for manufacturing a motor includes preparing the coil wound into a ring-like form and tied, preparing the split core such that the spacing between the pair pole pieces in the circumferential direction of the split core corresponds to the inner dimension of the coil in the circumferential direction of the split core, inserting the tied coil into the two coil receiving parts through the openings and then, deforming the split core such that the spacing between the pair pole pieces is increased to be longer than the inner dimension of the coil.

Abstract: In a winding apparatus (1) of a stator (multi polar armature) winding a bundle of plural wire rods (5) on a circular core in which teeth (winding core) (9) are arranged circularly, an index mechanism (11) rotating the circular core (8) around its central axis, a core turning mechanism (30) turning the index mechanism (11), a nozzle (3) reeling out a plurality of wire rods (5), and a nozzle travel mechanism (15) traveling the nozzle in the three dimensional directions are provided. The index mechanism (11) and the nozzle travel mechanism (15) travel the nozzle (3) around each tooth (9) to wind the wire rods around each tooth (9), as well as the core turning mechanism (30) turns the index mechanism (11) and also the circular core (8) to eliminate the twist produced in the wire rods (5) wound around tooth (9).

Abstract: A method for installing a stator winding in a stator core. A winding turn is formed by drawing a cable portion from a cable reel and inserting it into two winding slots. Each winding turn that is jointlessly connected to first winding turn and has the same winding direction as the first turn is formed by making this winding turn include a cable section corresponding to a turn on the reel that has been lifted off the reel by lateral movement over a gable of the reel. To form each winding turn that is jointlessly connected to the first winding turn and has a second winding direction opposite the winding direction of the first turn, the cable portion forming this winding turn is made to include a section corresponding to a turn on the reel that has been lifted off the reel by lateral movement over the other gable.

Abstract: A method of constructing a segmented wound member of an N phase electromechanical device comprises winding N sets of segments and combining the N sets of segments in a common circular arrangement to form the wound member. The N sets of segments are wound with a single continuous length of wire for each set. Each of the N sets of segments is wound separately from the remaining sets of segments and then combined in the common circular arrangement with the remaining sets of segments to form the wound member.

Abstract: A method is disclosed for making an electric motor stator. In accordance with the method, coil groups are inserted for different electrical phases through a first and second ends of a stator core. An insertion tool is used for insertion of the coil groups independently. Coils for individual phases are inserted through the first and second ends, and leads for the coil groups may exit alternative ends as a result of the method.

Abstract: Coil members are obtained by forming width-reduced portions in a wire material over a predetermined longitudinal range generally centered on cutting positions, then removing an insulation coating from the width-reduced portions, and thereafter cutting the wire material at the width-reduced portions. Coil segments are prepared by bending the coil members into a general U shape. Then the coil segments are inserted into the slots in a stator core, and a stator is obtained by welding together the free end portions of the projecting coil segments.

Abstract: The present invention concerns forming wire coils by simultaneously winding a plurality of wires onto a dynamo-electric machine component. In order to maximize the amount of wire that can be placed in the spacings of the dynamo-electric machine component, the turns of the wire coil must be regularly disposed without twisting the plurality of wires onto each other. Current winding apparatus may allow certain portions of the wire turns to unevenly accumulate and locally bulge outward from the collection of wire coils. Such bulges, especially in consideration of the limited spacings available on an dynamo-electric machine component, may interfere with or access to the spacings by a wire dispensing member during the winding process. The present invention proposes to perform multiple-wire winding processes that avoid wire twisting and improper disposition of the wires. Further, the present invention proposes to improve the ability of the wire dispensing member to traverse the spacings on the component.

Abstract: The present invention concerns solutions for disposing the wire leads of a wire coil along trajectories that have predetermined positional references relative to the dynamo-electric machine component. The present invention proposes to provide a wire lead manipulator that operates to dispose the wire lead by entering within extremely narrow gaps on a dynamo-electric machine component at high speed and with a lower risk of the wire lead manipulator colliding with the accessory parts of the component. Using the solutions of this invention, these achievements are possible for dynamo-electric machine components with very small spaces between accessory components that do not allow the passage of conventional wire lead manipulator apparatus.

Abstract: Methods and apparatus are provided for wire winding and fabrication for dynamo-electric machine components such as ferromagnetic armature or stator cores for motors or the like. Wire may be wound onto individual portions of dynamo-electric machine components, which may then be assembled to form complete components. Wire may be wound by steering a rotating flyer or the like in a trajectory that closely follows the surface of the core onto which the wire is being wound. Wire may also be wound by rotating the portions during winding. The same holding members that are used to hold the portions during winding may be used to hold the portions during assembly of the portions into machine components.

Abstract: The present invention concerns improved methods and apparatus for forming undulated wire coils that are placed into the cores of dynamo electric machine components. In particular, the invention concerns improved methods and apparatus for controlling the direction of deposit (along the axis about which the coil is wound) for the turns of a wire coil and for positioning the leads of the coil. This is accomplished by forming a series of wire coils using a programmable apparatus that controls a sequence of directions (along the coil axis) in which the wire turns are deposited, as well as positions of the final leads. The same methods and apparatus may also be used to form continuously wound wire portions.

Abstract: The invention relates to a procedure for preparing the windings for an electric motor. The magnetic core (20) of the stator and/or rotor of the motor is provided with slots (24,25) in which winding coils (2; 5,7;15,17) can be fitted. According to the invention, the winding coils (2) are wound from winding wire and shaped substantially into their final form, the cross-section of the coil sides (15,17) corresponding to the space reserved in the slot (24,25) for the coil. The winding coils (15,17) are fitted in place in the slots (24,25) provided in the magnetic core.

Abstract: The object of the present invention is to provide a method and an apparatus for manufacturing a stator to improve accuracy in inserting conductor segments (3, 31, 32) into slots (2). The apparatus according to the present invention comprises a conductor holder (21, 22) holding the conductor segments (3, 31, 32) and an axial-moving-mechanisms (214) moving the conductor holder (21, 22) relative to a stator core (1) in an axial direction. The conductor holder (21, 22) holds straight portions (31b, 31c, 32b, 32c) of the conductor segments (3, 31, 32) to be inserted into the slots (2) from one end of the stator core (1).

Abstract: A coil winding apparatus to fabricate a coil-wound article comprises a mandrel having an outer periphery, first and second side ends through which is axially formed an orifice to define an inner periphery. Slots are radially formed along each side section of the outer periphery to allow communication between the inner and outer peripheries. Grooves are circularly formed to intersect the slots. Upright portions of the hooks are radially aligned with the slots to enable their reciprocal movements through the slots. Retainer members sustain the hooks by the holes. Elastic rings are worn in and along the grooves to elastically maintain each upright portion of the corresponding hooks below the outer periphery of the mandrel. Adjusters are detachably inserted through the orifice to allow the upright portions to remain above the outer periphery of the mandrel.

Abstract: A retaining jig 11 is provided comprising a retaining part 15 which moves together with a nozzle 33 performing a cyclic motion, and holds a wire W paid out from the nozzle 33, a displacing means 13 which transports the wire W in the outer circumferential direction of a stator 1 while the wire is held, and a releasing means 15a which releases the hold on the wire W transported to a predetermined position in the outer circumferential direction by the displacing means. A core guide 21 is further disposed which guides the wire W into the stator when the wire W held by the retaining jig 11 is guided in the outer circumferential direction relative to an opening 4 in stator 1.

Abstract: In a dynamo-electric machine, a stator having a terminal board with at least one pair of slots located along its inside circumference, includes at least one pair of coil holders. Each coil holder is cantilevered from the terminal board at the ends of a pair of slots, and a wire guide is positioned on each coil holder. A wire depositing needle and the stator are placed in relative motion, which causes the guide to support the wire as it is transported along its surface. Coils of wire are created as each pair of slots is wound. The invention will typically be used to form multiple coil windings on a single stator.

Abstract: A device for coiling and uncoiling elongated goods (K), such as wire, cable or the like, onto a drum (13) comprises a support (12) with driving means (25) for a spreader arm (10). The spreader arm (10) is rotatably mounted on the support (12) and supports a gripping arm (14) for coiling and uncoiling the elongated goods (K) onto the stationary drum (13). The gripping arm (14) is formed as a curved V-profile having a running track arranged for the elongated goods (K), which running track is oriented towards the drum (13). The said running track is defined by feeding rollers mounted within the gripping arm (14). The feeding rollers are spherical in shape and have a rolling resistance near zero to eliminate twisting of the elongated goods (K) during coiling and uncoiling.

Abstract: A method of constructing a segmented wound member of an N phase electromechanical device comprises winding N sets of segments and combining the N sets of segments in a common circular arrangement to form the wound member. The N sets of segments are wound with a single continuous length of wire for each set. Each of the N sets of segments is wound separately from the remaining sets of segments and then combined in the common circular arrangement with the remaining sets of segments to form the wound member.

Abstract: In a dynamo-electric machine, a stator having a terminal board with at least one pair of slots located along its inside circumference, includes at least one pair of coil holders. Each coil holder is cantilevered from the terminal board at the ends of a pair of slots, and a wire guide is positioned on each coil holder. A wire depositing needle and the stator are placed in relative motion, which causes the guide to support the wire as it is transported along its surface. Coils of wire are created as each pair of slots is wound. The invention will typically be used to form multiple coil windings on a single stator.

Abstract: An object of the present invention is to provide a low cost, high performance, thin structure rotary motor for driving medium used in magnetic disk drive unit, optical disk drive unit or the like, in order to improve the productivity of terminating processing and the reliability of the coils. Magnetic materials which are divided to a plurality of blocks or divided corresponding to respective magnetic pole teeth are connected by means of thin portions. The respective magnetic pole teeth are wound continuously with wire without cutting the wire at the positions in which the thin portions are connected. When a stator is assembled, a plurality of blocks or magnetic pole teeth are disposed on a substrate by separating or bending the thin portions.

Abstract: Wedge guides 12 for holding a wedge 11 are mounted onto a base 10, and a stripper 15 is fixed to the other end of the wedge guide 12. A blade holder 13 including a plurality of blades 16 vertically installed is held in such a manner as to be freely advanceable and retractable in an up-and-down direction. A coil 30 wound is inserted between the blades 16, and alignment tool 7 is inserted at the tip ends of the blades. A stator iron core 40 is inserted into the alignment tool 7, and the stator iron core 40 is moved until the tip ends of the blades 16 penetrate the stator iron core 40. Thereafter, the stator iron core 40 and a connecting rod 19, the other end of which being connected to the blade holder 13, are pushed by a stator pusher 50, whereby the blade holder 13 is also caused to move together with the stator iron core 40 to insert the coil 30 into grooves in the stator iron core 40.

Abstract: A cable forerunner for winding a high-voltage cable in an electric machine, wherein one end of the cable forerunner (11) is attached to the end (10) of the cable (1), the cable forerunner (11) is arranged to draw the cable (1) through a first slot (15) arranged in the machine body (8) and also to control the curvature of the cable (1) at its exit from the slot (15) unitl its entry into a second slot (16) arranged in the machine body (8), as well as a procedure and also an electric machine having at least one winding comprising a high-voltage cable wound in accordance with the procedure for winding a high-voltage cable (1) in an electric machine, wherein one end of the cable forerunner (11) is attached to the end of the cable (1), whereafter the cable forerunner (11) is caused to draw the cable (1) through a first slot (15) arranged in the machine body (8) and to control the curvature of the cable (1) at its exit from the slot until its entry into a second slot (16) arranged in the machine body (8).

Abstract: Stator coils having lead wires inserted into temporary wire clamps (36) at a winding station are electrically tested before the coil lead wires are removed from the temporary clamps. In one aspect, the clamps each include a jaw (54) formed with a wire-engaging surface (88) which scrapes the insulating coating off from a lead wire as it is inserted therein. The clamps are electrically connected to terminal members (90) which are engageable by electrical test terminal members (100). In a modification, the clamps include a wire-scraping jaw having, in addition to a body formed with a sharpened or knife edge, a shield having wire-guiding surfaces engageable by a lead wire being inserted into the clamp. The wire-guiding surfaces are located adjacent the knife edge and are so positioned that the depth of the insulated wire scraped or cut away by the knife edge is only a few thousandths of an inch.

Abstract: At each work station of a textile machine producing wound bobbins, the yarn package on which yarn is wound is driven by a friction roller. In contrast to the conventional driving of the roller by a gear motor flanged to the housing of the work station, which has the disadvantage of requiring space and difficulty in removing and replacing the friction roller for maintenance, the present invention simplifies the friction roller drive by configuring the housing of the work station for the direct reception of the stator windings of the drive motor for the friction roller and mounting the friction roller and the rotor of the drive motor together on a continuous shaft.

Abstract: Stator coil lead wires are coursed along complex, circuitous paths on the end of a stator core and trimmed at a precise predetermined distance from the stator core. Improved end effector wire-guiding tooling member are provided in place of conventional gripper jaws to permit the lead wires to be coursed along complex, circuitous paths. In addition, an improved lead pull assembly, improved temporary wire clamps, and a wire former assembly are provided.

Abstract: An apparatus and method is provided for introducing slack into a coil wire prior to termination. A stator having a volume of coil windings has a terminal board mounted thereon. Means for introducing slack in the coil wire includes a terminal receiving cavity located in the terminal board. A portion of the coil wire is passed across the cavity and a terminal is inserted therein, thereby crimpingly engaging the wire. The wire is simultaneously passed over a spacer which extends laterally across the cavity. When the spacer is subsequently removed a loop of slack remains in the wire.

Abstract: A method for cross-winding of thread-like or band-like winding material on winders is described for the production of bobbins wound up in cross-winding with random winding or precision cross winding. The winding material is traversed by a slit drum (1) comprising a slit (5) and is wound up to a bobbin (18). The winding material is traversed by a slit drum (1) comprising at least three parts (2, 3, 2) forming the slit (5) and at least one crossing point (6). The winding material entering the slit drum (1) is guided by an auxiliary apparatus (10), which forces an additional motion to the winding material while passing each crossing point (6) of the slit (5) of the slit drum (1) to maintain the corresponding traversing direction (8).

Abstract: Electric motor stators can have coils wound on their poles which coils have more turns than the poles could normally support by augmenting the pole with additional structures to support the added coil turns. The additional structures can be only temporarily associated with the stator, e.g., by adding them to the winding shrouds which are customarily applied to the stator during winding. Alternatively these additional structures can be permanent but non-magnetic portion of the stator, e.g., by adding them to the terminal board members of the stator.

Abstract: Stator coils having lead wires inserted into temporary wire clamps at a winding station are electrically tested before the coil lead wires are removed from the temporary clamps. The clamps each include a jaw formed with a wire-engaging surface which scrapes the insulting coating off from a lead wire as it is inserted therein. The clamps are mounted on an electrically insulating support and are electrically connected to terminal members which are engageable by electrical test terminal members.

Abstract: In order to simplify the changing of a traversing mechanism depending on the yarn conditions, an insertable and exchangeable traversing device is provided in a bobbin winding machine. The traversing mechanism either guides the yarn by way of a so-called cam cylinder traversing device or by way of a so-called wing traversing device which guides the yarn through rotation of traversing wings. The traversing device is arranged substantially opposite a contact roller so that a yarn to be wound up is guided to-and-fro by way of a thread guide in accordance with a stroke length and is deposited on a yarn package via the contact roller. The wing traversing device includes upper and lower wings, with the upper wings being held in a stationary manner in an overall base plate, while the lower wings are held rotatably in unit base plates.