Abstract: A fixing tool of an auto-tensioner includes inwardly inclined engaging pieces inclined inwardly so as to be opposed to respective tapered surfaces of a spring seat and a cylinder of the auto-tensioner. The engaging pieces have concave surfaces that contact the tapered surfaces over a circumferentially extending area. This minimizes the deformation of the engaging pieces such that the diametrical distances therebetween increase due to contact with the tapered surfaces when sandwiching the spring seat and the cylinder with the engaging pieces from the axially opposite directions, thereby preventing the fixing tool from coming off.

Abstract: A plunging type constant velocity universal joint includes outer and inner joint members that transmit torque therebetween through intermediation of a ball while allowing angular displacement. The outer joint member is configured to receive an internal component comprising the ball and the inner joint member so that the internal component is slidable in an axial direction. The universal joint also includes a stopper mechanism that has an annular groove, and is configured to restrict axial displacement of the internal component by allowing the ball to interfere with a circlip fitted to the annular groove. The annular groove has a conical surface, which is inclined with respect to an axial direction so that the conical surface and an axial tangent line at a contact point between the ball and the circlip form a wedge angle opened from an opening end portion of the outer joint member toward a far side.

Abstract: A working device (1) using a parallel link mechanism includes: a parallel link mechanism (10) by which end effectors (4, 5) are supported so as to be changeable in posture; and posture-controlling actuators (11) which actuate the parallel link mechanism (10). In the parallel link mechanism (10), a distal-end-side link hub (13) is connected to a proximal-end-side link hub (12) via three or more link mechanisms (14) so as to be changeable in posture of the distal-end-side link hub (13) relative to the proximal-end-side link hub (12). The end effectors (4, 5) are mounted to the distal-end-side link hub (12), and includes one main end effector (4) which performs a main work on a workpiece (3) and one or multiple sub end effectors (5) which perform an auxiliary work on the workpiece (3).

Abstract: Provided is a vertical axis wind power generation device including a wind turbine of a vertical axis type including a support column, a main shaft disposed on an upper portion of the support column so as to be rotatable, a plurality of blades coupled to the main shaft through arms; a power generator; and a container having a standard dimension for freight transport. The wind turbine is accommodatable in a folded or disassembled state in the container together with the power generator. The container is provided with a support-column fixing part configured to fix the support column of the wind turbine to the container. The container may include an inclining mount inside the container, the inclining mount being configured to accommodate a folded body of the wind turbine.

Abstract: The linear motion mechanism and the electric motor are arranged in the axial direction with a rotary input-output shaft of the linear motion mechanism interposed therebetween. In the electric motor, orientation of a magnetic pole generating interlinkage flux is parallel with a rotation shaft of the motor. The linear motion mechanism has a thrust bearing for retaining a reaction force against a load in the axial direction in association with linear motion of the linear motion part. The control unit has a thrust force applying section for applying a thrust force such that a force acting in the axial direction of the rotary input-output shaft due to interlinkage flux between the stator and the rotor causes generation of a force, in the axial direction, acting on the thrust bearing.

Abstract: A hydraulic turbine suspending device is provided which facilitates the positioning of a hydroelectric generator in a waterway, and which is easy to work on. The hydraulic turbine suspending device is a support that suspends a hydraulic turbine (10) in a waterway by laterally bridging the same, and comprises a combination of a suspending beam (2) positioned in parallel with the upstream and downstream sides of the waterway; a plurality of stanchions (5) that support the edges of the suspending beam (2) in a horizontal position on the outside of the waterway; and a floor plate (6) provided in a tensioned state to the suspending beam (2).

Abstract: Provided is an electric actuator, including: a drive part (2); a motion conversion mechanism part (3) configured to convert a rotary motion from the drive part (2) into a linear motion in an axial direction parallel with an output shaft of the drive part (2); a driving force transmission part (4) configured to transmit a driving force from the drive part (2) to the motion conversion mechanism part (3); and a motion-conversion-mechanism support part (5) configured to support the motion conversion mechanism part (3), and wherein the drive part (2) and the motion-conversion-mechanism support part (5) are capable of being coupled to and decoupled from the driving force transmission part (4).

Abstract: Track grooves of an outer joint member include first and second track groove portions. An end portion of the ball raceway center line of each of the first track groove portions is located on the opening side with respect to a joint center and a ball raceway center line of each of the second track groove portions is connected to the end portion. A ball raceway center line of each of the track grooves of the inner joint member is formed to be mirror-image symmetrical with a ball raceway center line of a corresponding one of the paired track grooves of the outer joint member with respect to a plane that includes the joint center at an operating angle of 0° and is orthogonal to a joint axial line.

Abstract: The present invention relates to a steering function-equipped hub unit (1) having a function of steering a rear wheel, the hub unit including: a hub unit body (2) having a hub bearing (15) configured to support the rear wheel (9R); a unit support member (3) rotatably supporting the hub unit body (2) about a turning axis (A) extending in a vertical direction, the unit support member being configured to be provided to a rear-wheel suspension (Rs); and a steering actuator (5) configured to rotate the hub unit body (2) about the turning axis (A).

Abstract: A link actuation apparatus includes: a parallel link mechanism including a proximal-side link hub, a distal-side link hub, and three or more link mechanisms each coupling the distal-side link hub to the proximal-side link hub such that a posture of the distal-side link hub can be changed relative to the proximal-side link hub; posture control drive sources; and a control device. The control device includes an abnormality detector including: a measurement section configured to measure a predetermined state value which is affected by abnormality in revolute pair parts of a link actuation apparatus body constituted by the parallel link mechanism and the posture control drive sources; and a determination section configured to determine if any of the revolute pair parts has abnormality in on the basis of a measurement result obtained by the measurement section. For example, the measurement section measures rigidity, or driving torque or the like.

Abstract: In a fixed type constant velocity universal joint, an axial offset amount of a curvature center of each of track grooves of outer and inner joint members is set to 0. The track grooves of the outer and inner joint members are each inclined with respect to an axis line. The track grooves adjacent to each other in a circumferential direction are inclined in opposite directions. The track grooves of the outer and inner joint members that are opposed to each other are inclined with respect to the axis line in opposite directions. A chamfered portion is formed on a track inlet end of each of the track grooves of the outer joint member. When the cage and the inner joint member are inclined with respect to the outer joint member, balls are incorporated into two cage windows at the same time through the chamfered portions.

Abstract: An abnormality diagnosis device according to the present invention detects damage to a bearing device based on vibration data on acceleration of the bearing device. The abnormality diagnosis device includes a first filter, a second filter, and a diagnosis unit. The first filter is configured to extract a first vibration waveform belonging to a frequency band from the vibration data. The second filter is configured to extract a second vibration waveform belonging to a second frequency band higher than the first frequency band from the vibration data. The diagnosis unit is configured to diagnose that there is damage to the bearing device when an evaluation value calculated by dividing a first amplitude of the vibration waveform by a second amplitude of a second vibration waveform at a time at which the first amplitude has occurred exceeds a determination value, the first amplitude exceeding a reference value.

Abstract: An air turbine drive spindle includes a rotary shaft, a bearing portion, a damper ring, a cover member, and at least one or more O rings. The bearing portion surrounds at least a portion of an outer circumferential surface of the rotary shaft. The damper ring is disposed at the outer circumferential side relative to the bearing portion with a gap being interposed therebetween. The cover member is disposed at the outer circumference side relative to the damper ring with a gap being interposed therebetween, and is configured to store the rotary shaft, the bearing portion, and the damper ring. At least one or more O rings are disposed in each of the gap and the gap.

Abstract: Raw material powder containing iron powder, copper powder, and tin powder is compressed to form a green compact. The green compact is sintered in a temperature range of from 750 to 900° C., to bond iron structures to each other with copper and tin.

Abstract: The anti-lock brake control device includes: a wheel motion estimator to estimate one or more of an angle, an angular velocity, and an angular acceleration of a wheel; a slip estimator to estimate a slip state of the wheel, using an estimation result of the wheel motion estimator; and an anti-lock controller to give a command for causing a brake device to reduce a braking force, in accordance with the estimated slip state of the wheel. The slip estimator includes delay compensators, such as one or a plurality of filters, which perform delay compensation for the estimation result of the wheel motion estimator. The anti-lock controller gives the command for reducing the braking force, on the basis of a result of predetermined determination including comparison of the plurality of estimation results outputted from the slip estimator.

Abstract: A rolling bearing, a rolling device, and a method of manufacturing the rolling device are provided, by which a long life can readily be implemented by suppressing surface damage even on the use condition that the oil film formation performance of a rolling part is poor. A rolling device includes: a first rolling component made of SUJ2; and a second rolling component made of SUJ2 and configured to contact the first rolling component. A surface of a rolling part of the first rolling component is greater in arithmetic mean roughness than a surface of a rolling part of the second rolling component. The arithmetic mean roughness of the surface of the rolling part of the second rolling component is 0.07 ?m or more and 0.20 ?m or less.

Abstract: A bearing device (1) for a vehicle wheel provided with: an outer member (2); and an inner member comprising a hub wheel (3), and at least one inner wheel (4) press-fitted into the small-diameter ridge (3A) of the hub wheel (3); wherein a belt-shaped part (2F) that radially protrudes by a protrusion amount (P1) is formed over a prescribed width (W1) in the outer peripheral surface of the outer member (2) so that at least part of the belt-shaped part (2F) radially overlaps the outside rolling surface (2D) which is on the vehicle-wheel-attachment-flange-facing side of the outer member (2). The present invention addresses the problem of providing a bearing device for a vehicle wheel in which the amount of deformation in an opening of an outer member can be reduced and decreases in rolling fatigue service life can be prevented while keeping overall weight increase to a minimum.

Abstract: Provided is a steering function-equipped hub unit for steering a rear wheel configured to be supported by a suspension device including a torsion beam and a pair of trailing arms. The hub unit includes: a turning shaft-equipped hub bearing including a turning shaft extending in a vertical direction and configured to rotatably support the rear wheel; a unit support member supporting the turning shaft-equipped hub bearing such that the turning shaft-equipped hub bearing is rotatable about a turning axis; and a steering actuator separate from the unit support member and configured to rotationally drive the turning shaft-equipped hub bearing. The steering actuator is attached to the suspension device at a position higher than a lowermost surface of the torsion beam and between a rotation support part of the suspension device and the turning shaft-equipped hub bearing.

Abstract: A bearing device for a vehicle wheel includes an outer member which is a plastic work piece in which an open hole in an outer-side end part is pushed out from inner sides, and an outer periphery of the outer member has a bulged part that is enlarged radially outward.

Abstract: A bearing device for a vehicle wheel is provided with: an outer member; an inner member; a ball row; and a seal member for sealing the space between the outer member and the inner member due to a seal plate in which a sealing lip is formed being fitted into an opening in the outer member, a slinger being fitted on the inner member, and the sealing lip coming into contact with the slinger; wherein the slinger is formed so as to cover the end surface of the opening in the outer member, the slinger is provided with a cylindrical wall part extending in the axial direction of the inner member, a labyrinth is configured between the slinger and the end surface of the opening in the outer member, and another labyrinth is configured by the wall part being disposed between the outer member and the sealing lip.