Abstract: A rotary vacuum pump includes a pump casing on which an intake port flange is formed, a rotor which has a rotating side evacuating device and is driven to rotate at high speed inside the pump casing, and a fixing side evacuating device which is provided inside the pump casing and generates an evacuating effect together with the rotating side evacuating device. The intake port flange is fastened to a device subject to evacuating by a bolt. A through-hole is formed in the intake port flange for inserting the bolt and has a diameter larger than that of the bolt. A gap forming device for forming a gap between the bolt and the through-hole in the intake port flange is provided on a matching surface of the through-hole.

Abstract: The electromagnetic contactor enables a reliable return to a pole open position without increasing the spring force of a return spring. In an electromagnetic contactor, an electromagnetic device having an exciting coil and a contact mechanism having a return spring are disposed in parallel, and the electromagnetic device and contact mechanism are linked by a drive lever. The electromagnetic device has a polarized electromagnet having a magnetic circuit that includes a permanent magnet generating a suction force that moves the contact mechanism to a pole open position side when the exciting coil is not energized. The drive lever is fixed to either one of the electromagnetic device or contact mechanism and contacts with the other with no gap at least when the contact mechanism is moved to the pole open position side. The return force of the contact mechanism is covered by the suction force of the permanent magnet.

Abstract: A pretensioner and a seat belt apparatus are provided that can diffuse the heat of high-temperature gas and prevent the heat from concentrating locally on a wire. A pretensioner 10 has a housing 12 that allows a wire 11 to run therethrough and a cylinder 14. One end of the wire 11 is connected to a seat belt buckle 9, and the other end of the wire 11 is held by a piston 15. An apertured member 26, that covers at least the gas generator 23 side of a peripheral surface of the wire 11, is provided in the housing 12. A plurality of through-holes 29 are provided in a protecting portion 27 of the apertured member 26.

Abstract: A switching power supply has a full-wave AC rectifier circuit; a chopper circuit including an inductor, a capacitor smoothing current from the inductor, and a switching device for on-off control of the current fed to the capacitor. The rectifier circuit further has an input voltage detector circuit detecting chopper circuit input voltage; an output voltage error detector circuit detecting an error between an output voltage from the chopper circuit and a set voltage; a current control signal generator circuit generating a current control signal in-phase with an input voltage detection signal having a waveform similar to the input voltage detection signal and an amplitude proportional to an output voltage error signal; a current detector circuit detecting inductor current flow; a frequency setting circuit; an oscillator circuit; and a switching control circuit switching the switching device based on oscillation circuit signal, the current control signal, and the current detection signal.

Abstract: Power electronics equipment includes a switching device directing current flow to a load and interrupting the current flowing to the load, a control circuit generating a control signal directing the conduction and non-conduction of the switching device, a driver circuit driving a control terminal of the switching device based on the control signal, and at least one air-cored insulating transformer insulating the control circuit and the driver circuit from each other. Each air-cored insulating transformer includes a primary winding and a secondary winding configured to generate a voltage by a change of interlinkage of a magnetic field. The secondary winding includes a plurality of coils configured such that voltages generated by external magnetic flux intersecting the secondary winding are canceled and a voltage generated by the signal magnetic flux intersecting the secondary winding is increased.

Abstract: A holding tool for an elongated member includes a connecting member to be attached to an attachment member, a first holding part for holding the elongated member comparatively tightly, and a second holding part for holding the elongated member with a prescribed space therearound. A gap is formed between the first and second holding parts so that the elongated member can move from the first holding part to the second holding part.

Abstract: To enhance durability of a gear transmission mechanism by eliminating play in a gear engagement due to the backlash between the gears (gear clearance) of the gear transmission mechanism in a variable pitch mechanism of blades or a nacelle turning mechanism and further to reduce damages to a gear tooth surface caused by slide of the tooth surface or impact thereon due to slight vibration, the gear transmission mechanism is constructed such that a first pinion gear 20a and a second pinion gear 20b are provided to mesh with a gear wheel 18 respectively and rotated by a first drive motor 32a and a second drive motor 32b respectively, and a controller 36 controls so as to eliminate play in the engagement of the internal gear and the pinion gear due to backlash between the internal gear 18 and the first pinion gear 20a, thereby avoiding generation of a slide and impact force on the gear transmission mechanism even when the external force or the wind acts on the blade 16.

Abstract: There is provided a pellicle in which the frame is chamfered along all of its horizontal edges (as viewed when the pellicle frame is laid flat), and in particular those edges of the frame where the membrane-bonding frame face meets the external side walls of the frame are chamfered to the extent of C:0.01 mm-C:0.12 mm; in relation to this chamfer, a method is also provided wherein, after attaching a preformed pellicle membrane to the membrane-bonding frame face, the excessive part of the preformed membrane which extends beyond outer edges of the frame face is cut off in a manner wherein a blade of a knife is caused to scour the chamfer over the membrane in a manner such that the knife blade is kept in such an angle that the blade gets in a face-to-face contact with the chamfer face or that the blade touches only that edge of the frame where the chamfer face meets the first frame face while the knife blade is moved along the chamfered edge of the frame.

Abstract: A catcher 2 includes a catcher stopper 21, a holder 22 for a striker 1, and a biasing member 23 for the catcher stopper and the holder. When the catcher stopper 21 is projected by the biasing member 23, the holder 22 is set in a forward position and in a non-holding state, and when the holder 22 is set in a backward position and in a holding state, the catcher stopper 21 is withdrawn. The recess Mb has an engageable hole 402 formed therein for engagement with the catcher stopper 21, and a force is stored in the biasing member 3 when the catcher 2 is set in a reference position where the catcher stopper 21 is brought into engagement with the engageable hole 402. The sticker 1 enters the holder 22 of the catcher 2 when the catcher is set in the reference position since the movable member M is moved forward to a self-propelled movement start position.

Abstract: A sliding assistance mechanism for helping a switching operation of a moving body on a main body side, includes a case attached to the main body side; first and second moving members slidably placed in the case, respectively; a pair of latches pivotally supported at each moving member, respectively, and releasably locked to corresponding parts of a case side; an urging device provided between both moving members; and a guide groove provided in the case for moving the latches along the same; and first and second operational members spaced apart from each other and provided in the moving body. When the moving members are at a halfway position, an engagement of one of the latches with the second operational member provided in the second moving member is released, and the moving body is pulled by the urging device to the second position.

Abstract: A catcher member is provided to be movable between a standby position and a retracted position, and at the standby position, while being urged by an urging device, the catcher member is positioned in the standby position by a holding device. When a movable body is moved forward a predetermined movement position, a striker member is caught and engaged with the catcher member positioned in the standby position, and subsequently, holding by the holding device is released, and the catcher member is moved or relatively moved up to the retracted position by being urged by the urging device, so that the urging force is applied to the movable body up to position where the movement ends. An operation device is provided so as to be able to operate to move the catcher member which was moved to the retracted position without catching the striker member, toward the standby position.

Abstract: The inverter device includes an IGBT bridge circuit, a drive block which has an upper arm photocoupler and a lower arm photocoupler, and a control block including a CPU which generates gate signals and supplies them to the photocouplers. The control block includes an upper arm shutdown circuit and lower arm shutdown circuit which individually shutdown the gate signals of the upper arm and lower arm IGBTs in accordance with shutdown signals input from the exterior, and the shutdown circuits carry out a shutdown operation in accordance with the shutdown signals, which have mutually inverted logics.

Abstract: An electromagnetic contact device has a contactor holder (40), which moves a mounted movable contactor (42a) according to a displacement of a movable core (32) forming an electromagnet (30) for operation. The contactor holder (40) is being housed together with the electromagnet (30) for operation in a case (1). The case (1) has a lower case portion (10) housing the electromagnet (30) for operation and an upper case portion (20) engaging with the lower case portion (10) while being stacked on the lower case portion and houses the contactor holder (40) advanced from above. The upper case portion (20) has a recess (21) with an upward opening and houses the contactor holder (40) placed on the bottom wall of the recess (21). The lower case portion (10) houses one selected either a DC-only electromagnet (30b) or an AC-only electromagnet (30a).

Abstract: A master disk for batch transferring of predetermined information recorded therein to a magnetic recording medium includes a substrate transmitting laser light, and convex portions provided on the substrate and formed of material reflecting or blocking the laser light. The convex portions have a pattern corresponding to the predetermined information.

Abstract: A pulp production process can produce pulp at high yield without using sodium sulfide and high-temperature/high-pressure conditions if compared with the Kraft process and also collect lignin. Pulp is produced by processing wood chips for hydrophlicization at room temperature, using a dilute caustic soda aqueous solution, selectively partially modifying lignin in dilute nitric acid and digesting the wood chips by means of a dilute caustic soda aqueous solution under the atmospheric pressure. Lignin is agglomerated and sorted out from the isolated black liquor.

Abstract: A thermal printer detects an environmental temperature, and directly or indirectly detects a change in tension of an ink ribbon R. A correction value is read or calculated according to at least one of the detected environmental temperature and the detected change in the tension of the ink ribbon R. Thermal energy of each heating element in the thermal head is controlled based on the correction value so as to adjustably increase or reduce number of print lines on a print medium in a sub-scanning direction.