Abstract: Provided are a circuit board assembly that can prevent contact between connection terminals due to whiskers even if whiskers grow from the connection terminals and a method for manufacturing an insert molded product. A cover body of a circuit board assembly has a plurality of partition walls that form a plurality of grooves each accommodating a corresponding one of connection terminals. The partition walls restrain the inner surface of a second cover of the cover body from entering the grooves when an external pressure is applied to a part of the cover body which covers the connection terminals. The partition walls also prevent contact between adjoining ones of the connection terminals when whiskers grow.

Abstract: An electric power steering system includes a vehicle speed sensor configured to detect a vehicle speed, a motor driving circuit configured to supply power to an electric motor, a main power supply and a capacitor that can supply power to a driving circuit, a charging circuit configured to charge the capacitor based on the main power supply, and an ECU for power source control that controls the charging circuit. The ECU for power source control drives the charging circuit to charge the capacitor only when the vehicle speed is lower than a first predetermined value and an inter-terminal voltage of the capacitor is lower than a second predetermined value.

Abstract: In an electric power steering system, an offset correction value setting unit corrects second offset correction values in a state where 100% of current command values is distributed to a first control unit, and 0% of the current command values is distributed to a second control unit. The offset correction value setting unit corrects first offset correction values in a state where 100% of the current command values is distributed to the second control unit, and 0% of the current command values is distributed to the first control unit.

Abstract: A column jacket can pivot in a tilt direction around an end of a steering shaft along with the steering shaft. When the column jacket is pivoted in the tilt direction, an engaging member moves in the tilt direction along with the column jacket. A position fixing mechanism has a pair of fixing members located adjacent to opposite ends of an engaged member in a longitudinal direction to fix the position of the engaged member in the tilt direction. The position fixing mechanism fixes the position of the column jacket in the tilt direction by engaging the engaged member with the engaging member. At a time of a secondary collision, the engaged member engaged with the engaging member breaks a front fixing member.

Abstract: A column jacket includes a pair of facing portions facing each other, and a stepped portion which extends in a direction that intersects with a column axial direction and at which an outer surface of the corresponding facing portion projects outward halfway toward an end side of the column jacket. Tilt grooves are formed in respective side plates of an upper bracket fixed to a vehicle body. A clamping mechanism including a clamping shaft inserted through the tilt grooves clamps the side plates to bend the side plates such that an end of each side plate on the extending direction upper side is displaced toward the corresponding facing portion. The stepped portion is located between a fulcrum portion serving as a fulcrum when the corresponding side plate is bent by being clamped by the clamping mechanism and the corresponding tilt groove, in an extending direction of the side plates.

Abstract: There is provided a torque detector configured such that a magnetic shield is fixed to a holder without the need for a component for fixation of the magnetic shield, and no backlash is caused between the magnetic shield and the holder after the magnetic shield is fixed to the holder. The torque detector has engagement grooves into which a magnetic shield is to be inserted when the magnetic shield is fitted onto outer peripheral surfaces of a first holder and a second holder. The magnetic shield has end portions to be inserted into the engagement grooves, and each of the end portions is provided with engaging members that are always engaged with inner surfaces of the engagement grooves, respectively, while being inserted into the engagement grooves, to restrict movement of the end portions in the counter-insertion direction.

Abstract: A mold for insert molding, which houses an electronic unit including a first circuit portion and a second circuit portion protruding from the first circuit portion, is prepared. The mold includes an upper wall surface facing an upper surface of the second circuit portion and side wall surfaces facing side surfaces of the second circuit portion. The flow resistance of a resin flowing through a space between each side surface of the second circuit portion and the corresponding side wall surface is lower than that of the resin flowing through a space between the upper surface of the second circuit portion and the upper wall surface. Then, the electronic unit is placed in the mold. Then, the resin is injected into the mold in which the electronic unit has been placed. Thus, the electronic unit and the housing in which the electronic unit is housed are integrated with each other.

Abstract: In a motor control device that can perform more appropriate motor control, a switching arm has a first upper FET, a second upper FET, and a lower FET connected in series to one another. A source electrode of the second upper FET and a drain electrode of the lower FET are connected to each other via an intermediate line. The intermediate line is connected to a U-phase motor coil of a motor via a power line. The first upper FET, the second upper FET, and the lower FET are each provided with a parasitic diode that prevents current from flowing from a battery side to a ground side. A phase opening relay FET is provided on the U-phase power line. A parasitic diode of the phase opening relay FET is provided such that a current is not applied from the U-phase motor coil to the U-phase switching arm.

Abstract: A programmable controller includes forward switching units and backward switching units. The forward switching units electrically disconnect forward communication wirings if a module is mounted on a slot connector, and electrically short-circuits the forward communication wirings if no module is mounted on the slot connector. The backward switching units electrically disconnect backward communication wirings if the module is mounted on the slot connector, and electrically short-circuits the backward communication wirings if no module is mounted on the slot connector.

Abstract: A rack housing includes first and second rack housing members aligned in the axial direction of the rack shaft and coupled to each other in the vicinity of a speed reducer. A speed reducer casing is provided in its outer wall with a through hole. A belt tension adjusting mechanism includes: an adjusting shaft rotatably attached to the speed reducer casing; an eccentric shaft attached to the outer periphery of the adjusting shaft so as to be rotatable together with the adjusting shaft; two bearings disposed on the outer periphery of the eccentric shaft and axially away from each other; and a tension pulley rotatably attached to the outer periphery of the eccentric shaft via the bearings. A first end of the adjusting shaft is exposed to the outside of the speed reducer casing through the through hole.

Abstract: A work instruction system for a facility including processing machines is configured to provide work instructions on the processing machines to workers. The work instruction system includes a process plan storage section configured to store a process plan that defines a performing sequence regarding processing performed by the processing machines and work on the processing machines performed by the workers; a next work candidate extraction section configured to extract next work candidates for the workers based on current states of the processing machines and the process plan; a capacity database configured to store work capacity of each worker with regard to each work type; and a next work determination section configured to determine next work for a specified worker from among the next work candidates, based on the work capacity stored in the capacity database.

Abstract: A worm speed reducer includes a worm and a worm wheel meshed with the worm. The worm wheel has teeth with a modulus of elasticity of 6000 Pa or more. The difference obtained by subtracting the pressure angle on the pitch circle of the worm wheel from the pressure angle on the pitch circle of the worm is set in the range of 0.5° to 1°.

Abstract: In a facility system, a first gateway PLC connected to first processing machines and second gateway PLCs connected to second processing machines are connected to an upper-level network. Further, the first gateway PLC and the second gateway PLCs control operation mutually associated between the first processing machines and the second processing machines on the basis of mutually associated information which is acquired from the first processing machines and the second processing machines.

Abstract: An operation order system includes a management apparatus that manages processing executed by a plurality of processing machines and operations performed on the processing machines by operators and that determines a next operation for each operator based on an operation state of the operator, and portable terminal that can be carried by the operator and via which the operator can input the operation state of the operator so that the portable terminal transmits the input operation state to the management apparatus through wireless communication, the portable terminal receives the next operation from the management apparatus through wireless communication and displays the received next operation. The portable terminal receives, as the operation state, operation start information or operation completion information input from the operator indicating that the operator has started or completed the operation at a home position in a facility.

Abstract: A taper roller bearing includes: an inner ring, an outer ring, a plurality of taper rollers, and an annular cage. The cage includes a small-diameter annular portion on one side in a axial direction, a large-diameter annular portion which is positioned on the other side in the axial direction and on a radial outer side of a large flange of the inner ring, and a plurality of column portions which link the small-diameter annular portion and the large-diameter annular portion. The taper roller bearing has a labyrinth structure which suppresses a flow of lubricating oil to the outside of the bearing from the inside of the bearing between the large flange and the large-diameter annular portion.

Abstract: A main spindle device includes: a main spindle; a rod accommodated in the main spindle, the rod being capable of moving to an unclamp position in a direction toward the first end, and when the main spindle is holding a tool, being capable of moving to a clamp position in a direction toward a second end; a biasing unit that biases the rod in the direction toward the second end with respect to the main spindle and that biases the rod to the clamp position when a collet is holding the tool; and a biasing force detector that detects a biasing force of the biasing unit which biases the rod in the direction toward the second end after the rod is moved in the direction toward the first end with respect to the main spindle to the unclamp position by force larger than the biasing force of the biasing unit.

Abstract: A tapered roller bearing includes an outer ring, an inner ring, a plurality of tapered rollers, and a lubricant holding member. The lubricant holding member is provided integrally with the outer ring. The lubricant holding member includes a tubular portion and an annular portion. The tubular portion extends in an axial direction of the outer ring. The tubular portion is positioned at a first end of the outer ring in the axial direction. The annular portion extends inward in a radial direction of the outer ring, from the first end of the tubular portion in the axial direction. A plurality of recessed portions is formed in an inner peripheral surface of the tubular portion in juxtaposition in the circumferential direction.

Abstract: An assembly method for a planetary roller speed changer is provided. The planetary roller speed changer includes a plurality of planetary rollers that is in rolling contact with both an input shaft and a fixed ring and an output shaft supported by a housing and rotating along with the planetary rollers. An assembly apparatus includes an adjustment apparatus that enables positions of the fixed ring and the housing to be adjusted and a measurement apparatus that measures irregularity of rotation of the output shaft. In an assembly step, the fixed ring and the housing are fixed at a position where the irregularity of rotation of the output shaft is minimized.

Abstract: Two laminating sheets each formed by laminating a carbon fiber sheet and a film of a thermoplastic resin are set on heating in an area of a mold corresponding to a tubular portion of a rack housing. The mold is clamped, the carbon fiber sheet is impregnated with the thermoplastic resin of the film, each of the two laminating sheets is pressed into a shape with a half tube corresponding to a half circumference of the tubular portion and connection portions at both ends of the half tube in a circumferential direction, and two half tubes are bonded together at the connection portions thereof to form the tubular portion.

Abstract: A driving force transmission apparatus includes: a pinion gear shaft having a pinion teeth portion, a first shaft portion extending from one side of the pinion teeth portion, and a second shaft portion extending from the other side of the pinion teeth portion; a ring gear meshing with the pinion teeth portion; a clutch housing capable of rotating relative to the pinion gear shaft on a rotation axis in coincidence with a rotation axis of the pinion gear shaft; a clutch mechanism located between the clutch housing and the first shaft portion of the pinion gear shaft; and a differential carrier accommodating the ring gear. The first shaft portion and the second shaft portion of the pinion gear shaft are supported by a first bearing and a second bearing, respectively. The clutch housing is supported by the pinion gear shaft through a third bearing fitted on the first shaft portion.