Abstract: A sealing apparatus includes: an annular reinforcement ring around an axis; and an annular elastic body part around the axis, which is attached to the reinforcement ring and is formed of an elastic body. The elastic body part has: a side lip, an intermediate lip, and a grease lip. A grease as a lubricant is applied to respective inner peripheral side surfaces of the side lip, the intermediate lip, and the grease lip. A thickener of the grease includes no urea-based thickener. In a usage state of the sealing apparatus, a cross sectional area of an inter-lip space enclosed by the side lip, the intermediate lip, and a hub ring is equal to or greater than 3.5 mm2.

Abstract: A vibration actuator that cooperates with a coil and a magnet to vibrate a movable body with respect to a stationary body, including: the stationary body including the coil and a core around which the coil is wound; a shaft part; and the movable body including the magnet, the movable body being movably supported by the stationary body via the shaft part, wherein the core is disposed along an axial direction of the shaft part, and includes a core-side magnetic pole to be excited by energization to the coil, the magnet includes a magnet-side magnetic pole disposed so as to face the core-side magnetic pole with a gap therebetween, and the vibration actuator further includes a spring part elastically supporting the movable body with respect to the stationary body, linearly movably in the axial direction in a reciprocating manner, and rotationally movably about an axis in a reciprocating manner.

Abstract: To prove a motor capable of suppressing labor and costs even when the motor may be subjected to a large impact be used for a floating mobile body such as a drone. The motor (1) includes a shaft (41), a cartridge (4) including a plurality of bearings (42) that support the shaft (41), and a sleeve (43) that surrounds the bearings (42), and a housing (5) including a bottom portion (51) for receiving an impact from outside and an attaching portion (54) provided in the bottom portion (51). The bottom portion (51) of the housing (5) extends in a direction intersecting with respect to a longitudinal direction of the shaft (41), and the cartridge (4) is removably attached to the attaching portion (54).

Abstract: An absolute encoder includes a first drive gear (worm gear 1d) configured to rotate in accordance with rotation of a main spindle, and a first driven gear (worm wheel 2a) that engages with the first drive gear. The absolute encoder includes a second drive gear (worm gear 2b) provided coaxially with the first driven gear and configured to rotate in accordance with rotation of the first driven gear, and a second driven gear provided, in a plan view, on a side opposite the first drive gear with respect to the first driven gear and the second drive gear, the second driven gear engaging with the second drive gear. The absolute encoder includes an angular sensor configured to detect a rotation angle of a rotating body that is rotated in accordance with rotation of the second driven gear.

Abstract: A control device 10 for a rotary apparatus 1 includes a driving circuit 40 configured to apply a driving voltage to a stepping motor 20 that rotates an output gear 74, and a control circuit 30 configured to output, to the driving circuit 40, driving pulses in a number corresponding to a driving target included in a driving command signal from the outside. The control circuit 30 includes a driving-pulse output unit 61 configured to output the driving pulse in the number corresponding to the driving target, a position-information acquiring unit 52 configured to acquire position information from a potentiometer 75 that reads a rotating position of the output gear 74 of the rotary apparatus 1, and a rotation-abnormality determining unit 59 configured to determine, based on the position information acquired by the position-information acquiring unit 52, whether a rotation abnormality has occurred in the rotary apparatus 1.

Abstract: A degradation-determination system includes a volume change detecting unit configured to detect a volume change of a lithium-ion battery, a capacity change detecting unit configured to detect a capacity change of the lithium-ion battery, and a charge control unit configured to control charge of the lithium-ion battery. The charge control unit is configured to determine that the lithium-ion battery is in a state of degradation, upon occurrence of a condition in which volume expansion of the lithium-ion battery is detected by the volume change detecting unit, in conjunction with a condition in which a decrease in a capacity of the lithium-ion battery is not detected by the capacity change detecting unit.

Abstract: A grease composition for resin lubrication, the grease composition to be applied to a sliding surface made of resin, the grease composition containing: a fluorine-based base oil (a kinematic viscosity at 40° C. of 300 mm2/s or higher) and a synthetic hydrocarbon oil as base oils; a fluorine-based thickener, and a lithium soap thickener or a lithium complex soap thickener as thickeners; and a fluorine-based surfactant and an extreme pressure additive as additives; and a resin sliding member (slide switch) having a sliding surface made of resin, the sliding surface provided by application with the grease composition.

Abstract: A vibrator includes a frame, a swing unit, and an elastic member. The swing unit is disposed within the frame and holds a magnet. The elastic member connects the swing unit and the frame. The swing unit is movable with respect to the frame while deforming the elastic member. The frame, the swing unit, and the elastic member are integrally molded with each other.

Abstract: A rotor for an electric motor, comprising a rotor magnet and a bearing for the rotatable support on a fixed axle, the bearing comprising first and second bearing half-shells, wherein at least the first bearing half-shell is moveably arranged within the rotor body with respect to the second bearing half-shell, and wherein the first bearing half-shell is supported against the rotor body by a resilient element tangentially arranged with respect to the axle. The resilient element, at both its side surfaces facing in an axial direction of the axle, has at least one respective first protrusion extending in the axial direction, and the first bearing half-shell, on a side facing away from its bearing surface, includes at least two axially spaced second protrusions each extending in a radial direction and cooperating with the first protrusions for aligning the resilient element.

Abstract: A movable body wherein a pair of annular yokes including an opening at a center and a pair of weight parts including a through hole are stacked on a front and rear surfaces of a magnet having a circular plate shape in an axis direction, and another end portion of a connecting part that connects a pair of elastic support parts on one end portion side is disposed in the contiguous opening and through hole; and a fixing body wherein the movable body is housed in a cylindrical part, the movable body is supported with the pair of elastic support parts so as to be allowed to vibrate back and forth in the axial direction, and a pair of annular coils disposed radially outside the movable body is provided are provided, and the movable body is vibrated in the axial direction through energization of the coil.

Abstract: A fixing body configured to house a movable body including a magnet, and including a coil surrounding an outer periphery of the magnet and an outer yoke surrounding an outer periphery of the coil, the fixing body being configured to support the movable body so as to allow the movable body to vibrate back and forth in a vibration direction orthogonal to a radial direction, wherein the outer yoke includes a plurality of openings dispersed in a circumferential direction and provided at the same position in the vibration direction to keep a balance of a magnetic path configured together with the magnet and the coil in the circumferential direction.

Abstract: A rotary apparatus includes a motor, a plurality of gears including an output gear, and a housing accommodating the plurality of gears and the motor. The housing includes a first surface portion, a second surface portion facing the first surface portion and spaced apart from the first surface portion, and a sidewall portion provided at an outer peripheral portion of the first surface portion and the second surface portion and supporting the first surface portion and the second surface portion. One of the first surface portion and the second surface portion includes a vibration damping part opposing the output gear.

Abstract: A strain gauge includes a flexible substrate; a functional layer formed of a metal, an alloy, or a metal compound, on one surface of the substrate; and a resistor formed of material including at least one from among chromium and nickel, on one surface of the functional layer.

Abstract: A strain gauge includes a flexible substrate; a resistor formed of material including at least one from among chromium and nickel, on or above the substrate; and electrodes electrically coupled to the resistor. Each electrode includes a terminal section extending from a corresponding end portion from among end portions of the resistor; a first metallic layer formed of copper, a copper alloy, nickel, or a nickel alloy, on or above the terminal section; and a second metallic layer formed of material having better solder wettability than the first metallic layer, on or above the first metallic layer.

Abstract: A strain gauge includes a flexible substrate; a functional layer formed of a metal, an alloy, or a metal compound, on one surface of the substrate; a resistor formed of a Cr composite film, on one surface of the functional layer; and an insulating resin layer with which the resistor is coated.

Abstract: This bodily vibration generation device can be mounted to a bodily sensation presentation apparatus and generates, with a simple configuration, suitable vibration corresponding to a sound so that a user bodily senses the vibration. This device has: an electromagnetic actuator that causes, by an inputted drive signal, a movable body being supported so as to be elastically vibratable with respect to a fixed body, to vibrate by driving same in one direction of the vibration directions thereof; an AC signal input unit for inputting an AC signal; and a rectification unit that performs half-wave rectification of the AC signal and outputs the AC signal to the electromagnetic actuator as the drive signal.

Abstract: In accordance with one aspect of the present disclosure, an electronic device includes a housing, a contact member attached to the housing, and a vibration generating device. The vibration generating device is fixed to the contact member or the housing. A gap is formed between a surface of the vibration generating device facing the housing and a surface of the housing facing the vibration generating device.

Abstract: The degree of flexibility of a speed curve for a target rotational speed of a motor is to be increased. A motor control circuit 11 measures a duty cycle of an input speed command signal Sc indicating a target rotational speed of a motor 50 to be driven, sets an inflection point In for each duty cycle obtained by equally dividing a possible duty cycle range assumed by the speed command signal Sc based on resolution information 301 indicating a resolution of the duty cycle of the speed command signal Sc, calculates a rotational speed corresponding to the measured duty cycle of the speed command signal Sc based on rotational speed information 302 indicating rotational speeds at the inflection points In on a speed curve and the set inflection points In, and determines the calculated rotational speed as the target rotational speed.

Abstract: Provided is a vibration actuator that includes: a fixing part including a coil, and a core around which the coil is wound, the core including both ends projecting from the coil; a movable part disposed adjacent and opposite to the both ends of the core with a gap provided therebetween in a direction crossing with a winding axis of the coil, the movable part including a yoke formed of a magnetic material, the movable part being fixable to an operation contact surface part that is operated by contact; and a plate-shaped elastic part fixed between the movable part and the fixing part, the plate-shaped elastic part including an elastically deformable bellows-shaped part, the plate-shaped elastic part elastically supporting the movable part to be movable with respect to the fixing part in a direction opposite to at least one of the both ends.