Abstract: A portable power unit has a magneto generator having three-phase output windings. A synchronizing signal is formed in synchronism with an output frequency of the magneto generator. A pair of variable control bridge circuits are connected to the three-phase output windings and connected in antiparallel connection to each other to form a cycloconverter for generating a single-phase alternating current having a desired frequency to be supplied to a load. A bridge drive circuit is responsive to the synchronizing signal from the synchronizing signal-forming circuit, for causing the pair of variable control bridge circuits to be alternately switched to operate every half a repetition period of the single-phase alternating current, to thereby cause the cycloconverter to generate the single-phase alternating current. An output voltage-detecting circuit detects an output voltage of the pair of variable control bridge circuits.

Abstract: An electronic-component supplying system including electronic-component supplying cartridges each of which includes a cartridge frame, an electronic-component holder which holds electronic components and which includes a connection portion connected to a connection portion of the cartridge frame, and an electronic-component feeder which feeds each of the electronic components from the holder to an electronic-component supplying position distant from the connection portion of the cartridge frame, a support member which supports the respective cartridge frames of the supplying cartridges such that the respective electronic-component supplying positions on the cartridge frames are aligned with each other in a predetermined direction, and an engaging device which is provided between the support member and an engageable portion of the holder of each cartridge, the engageable portion of the holder being distant from the connection portion thereof, the engaging device being engageable with the engageable portion of

Abstract: An apparatus for cleaning a screen of a screen printing machine, including an ultrasonic vibrator which vibrates at an ultrasonic frequency, a cleaning-sheet supporting device which supports a portion or an entirety of a porous cleaning sheet between the screen and the vibrator, such that the portion or entirety of the cleaning sheet is contactable with the screen and the vibrator, and a washing-agent supplying device which supplies a washing agent to the cleaning sheet.

Abstract: An electronic-component ("EC") removing system including a supplying device which feeds an EC carrier tape in a feeding direction parallel to a length-wise direction of an adhesive tape of the carrier tape, a thrusting device including a thrust member and a first actuator which moves the thrust member between a thrusted and a retracted position through an opening of the adhesive tape in a thrusting direction perpendicular to the feeding direction, and a receiving device including a holder which holds each of ECs adhered to the adhesive tape, a movable member which supports the holder such that the holder is movable relative thereto, and a second actuator which moves the movable member between an EC removing position in which the holder is opposed via each EC to the thrust member and, when the thrust member is moved to the thrusted position through the opening of the adhesive tape to thrust each EC toward the holder, the holder is moved with each EC relative to the movable member in the thrusting direction to

Abstract: A mounting head, a mounting apparatus, and a mounting method which are capable of contacting an electronic component with a substrate with a small contact load and mounting the component on the substrate, are provided. A suction device 120 is fit on a splined axis portion 118 of a support shaft 84 via a ball spline 126, is biased downward by a first spring 130, and is biased upward by a second spring 134. A suction nozzle 124 is attached to a nozzle holder 122 by engaging engagement ridges 172 of sheet springs 166 fixed to the suction nozzle 124 with engagement grooves 144 of the nozzle holder 122, respectively. Prior to the mounting of electronic components 178, a relationship between contact load and position of lift 28 is obtained, and a position to which the lift 28 is moved downward for mounting each electronic component 178 is pre-determined. Thus, each component 178 is contacted with a printed circuit board with an appropriate load.

Abstract: An electronic-component mounting system including a plurality of mounting units which are arranged along a reference line contained in a reference plane, each of the mounting units including (a) a mounting device which mounts at least one electronic component on an object and (b) a moving device which moves the mounting device along the reference plane and in a direction perpendicular to the reference plane, the moving device moving the mounting device within a first range which at least partly overlaps, along the reference line, a second range within which the mounting device of at least one adjacent mounting unit of the plurality of mounting units which is adjacent to the each mounting unit is moved by the moving device of the adjacent mounting unit, the mounting device of the each mounting unit mounting the electronic component on the object within the first range, the mounting device of the adjacent mounting unit mounting at least one electronic component on the object within the second range.

Abstract: An apparatus for cleaning a screen of a screen printing machine, including an ultrasonic vibrator which vibrates at an ultrasonic frequency, a cleaning-sheet supporting device which supports a portion or an entirety of a porous cleaning sheet between the screen and the vibrator, such that the portion or entirety of the cleaning sheet is contactable with the screen and the vibrator, and a washing-agent supplying device which supplies a washing agent to the cleaning sheet.

Abstract: A transfer type circuit board fabricating system having a plurality of working modules each including (a) a conveyor device for transferring circuit boards in a predetermined transfer direction, (b) a working device for performing a predetermined operation on the circuit boards, and (c) a controller constituted principally by a computer, for controlling the working device, wherein the conveyor devices transfer the circuit boards one after another in the predetermined transfer direction through the working devices of the working modules, the system further having a coordinating control device constituted principally by a computer, for controlling the controllers of the working modules, on the basis of predetermined working schedule information stored therein, and status information which is received from the controllers of said working modules and which indicates operating states of the working modules.

Abstract: An electronic-component mounting system including supporting devices each of which supports and positions an object and is movable along a reference line, mounting units which are arranged along the reference line and each of which includes a mounting device which mounts an electronic component (EC) on the object, and a moving device which moves the mounting device in a three-dimensional space, each mounting unit having a mounting area in which the mounting device mounts the EC on the object, a feeding device which feeds the supporting devices along the reference line from the mounting area of a most upstream mounting unit to the mounting area of a most downstream mounting unit, a positioning error detector which detects an error of positioning of the object with respect to each supporting device located in a waiting area where each supporting device waits for being fed by the feeding device, and a control device which controls each mounting unit so that the mounting device of each mounting unit mounts the EC

Abstract: An electronic-component mounting apparatus including two or more actuators including two or more electric actuators which are provided on a movable member supported by a frame member and supporting an electronic-component mounting head are operable on electric energy, a power source which is provided on the frame member and provides the electric energy, a main control device which is provided on the frame member, an actuator control device which is provided on the movable member and controls the electric actuators, an electricity supplying device which includes a first supplying section provided on the frame member and a second supplying section provided on the movable member and which supplies the electric energy from the power source to the actuator control device, without having any wire connection between the first and second supplying sections, and an information transmitting device which includes a first transmitting section provided on the frame member and a second transmitting section provided on the

Abstract: A cartridge for supplying a carrier tape which carries a plurality of electronic components, the tape having a plurality of pockets for accommodating the respective components, and a pair of side portions on both sides of the pockets, the pockets projecting downward from the side portions, the cartridge including a cartridge frame, a tape feeding device mounted on the cartridge frame, for feeding the carrier tape in a feeding direction, a pair of rails provided on the cartridge frame such that the rails extend parallel to the feeding direction, the pair of rails supporting the pair of the portions of the carrier tape, respectively, and permitting movement of the pockets of the tape when the tape is fed on the rails by the tape feeding device, a tape positioning device which positions the carrier tape with respect to a lateral direction in which the pair of side portions of the tape are spaced from each other, and a rail adjusting device which adjusts a spacing between the pair of rails to each of a plurality

Abstract: A ratchet device is disclosed which includes a body, a ratchet wheel rotatably supported by the body, a feed pawl having an engaging portion engageable with teeth of the ratchet wheel, a support member for holding the feed pawl, a member for biasing the feed pawl toward the wheel teeth, and a drive device for moving reciprocating the support member between two positions to place the feed pawl alternately in its fully advanced and retracted positions, so as to rotate the ratchet wheel a predetermined angle in one direction. The ratchet device further includes a stopper member for contact with the feed pawl when the pawl is placed in the fully retracted position, to thereby prevent the engaging portion of the pawl from disengaging from the teeth of the ratchet wheel.

Abstract: A disk-shape portion of a surface mount connector housing or a separate cap member provides an upwardly facing surface adherable by suction to a suction nozzle of a conventional, automatic, vacuum type pick-and- place assembly tool and are, respectively, either integrally joined to the connector at the mating face, by a frangible or severable portion, or releasably attached to the connector housing by resilient legs which grip the housing between them, enabling the connector to be carried into position on a circuit board by the tool.

Abstract: An apparatus for mounting different sorts of electronic components on a substrate, including a table rotatable about an axis; a plurality of groups of mounting heads supported by the table, each one of the head groups consisting of a plurality of identical mounting heads that differ from the identical mounting heads of each of the other head group or groups, the mounting heads of the each one head group taking an electronic component of a corresponding one of the different sorts from an electronic component supply device and mount the electronic component on a substrate.

Abstract: A component supply device for supplying a component mounting device with electronic components at a supply position, which includes at least three supply tables each having a plurality of supply units mounted thereon such that the supply units have respective supply portions which are spaced from each other along a predetermined line, the supply units holding respective groups of electronic components of respective different kinds, a guiding device for guiding the supply tables such that the supply tables are movable in a moving direction parallel to the predetermined line, and a table positioning device for positioning the supply tables in the moving direction so that the supply portions of the supply units are selectively brought to the supply position.

Abstract: A detecting device for detecting a position of an electronic component in which the component is held by a holder is disclosed. The detecting device includes a first light emitter for emitting a first radiation toward a vicinity of the electronic component, a second light emitter disposed in the vicinity of the holder, for absorbing the first radiation, and emitting a second radiation having a wavelength different from that of the first radiation, toward the electronic component, and a photoelectric device disposed on one of opposite sides of the electronic component which is remote from the second light emitter. The photoelectric means is insensitive to the first radiation and receives a projection image of the electronic component formed by the second radiation.

Abstract: The present invention relates to a data input device for an embroidering sewing machine, and more particularly to an input device having an editing function for an input pattern.

Abstract: Are disclosed a method of detecting a hold-position of an electronic component in which the component is held by an electronic-component holding apparatus, an electronic-component holding apparatus having a hold-position detecting device, and an electronic-component mounting apparatus for mounting an electronic component on a printed-circuit board. The above method includes the steps of emitting light beams in a direction toward the electronic component (W) held by the electronic-component holding apparatus (58, 70), so as to take a projection of the component, and of detecting a position of the projection, thereby detecting the hold-position of the component.

Abstract: A method of taking an electronic component or chip out of each of plural pockets which are formed at regular intervals along a longitudinal direction of a carrier tape and which have openings in the upper surface of the tape, through vacuum suction of a suction member, while the tape is intermittently fed in a feeding direction parallel to its longitudinal direction, including the steps of: (a) bringing the pockets having the chips, into a position where their openings are covered with a covering device having a notch with a width narrower than that of the chip and wider than that of the suction member; (b) feeding the tape by the regular interval in the feeding direction, and permitting a leading chip of the chips covered with the covering device to be brought into a suction position where the leading chip is right below the suction member and the notch; (c) lowering the suction member through the notch so as to allow the suction member to suck and hold the leading chip; (d) retracting the covering device wh

Abstract: Are disclosed a method of detecting a hold-position of an electronic component in which the component is held by an electronic-component holding apparatus, an electronic-component holding apparatus having a hold-position detecting device, and an electronic-component mounting apparatus for mounting an electronic component on a printed-circuit board. The above method includes the steps of emitting light beams in a direction toward the electronic component (W) held by the electronic-component holding apparatus (58, 70), so as to take a projection of the component, and of detecting a position of the projection, thereby detecting the hold-position of the component.