Abstract: A cage and roller assembly includes rollers to be brought into rolling contact with a raceway surface provided on the outer periphery of a shaft, and an annular cage that retains the rollers. Lubricating oil is supplied through an oil supply hole that is provided inside the shaft and is open at an axial center region of the raceway surface. The cage includes annular portions having guide surfaces that are brought into contact with an inner peripheral surface of an outer member that is brought into rolling contact with the rollers, and cage bars that couple the annular portions together and are arranged with intervals in a circumferential direction. Clearances formed between the cage bars and the rollers housed in the pockets are larger in axial center portions of the cage bars between axial ends of the cage bars than at the axial ends of the cage bars.

Abstract: Carbodiimide is added to a molten polyamide resin so as to provide resin pellets. The percentage of residual unreacted carbodiimide to each resin pellet is 0.03% to 0.33% by mass. Manufacturing molded articles using the resin pellets achieves both of an improvement in mechanical strength and an increase in wear resistance, and reduces property variations among the molded articles.

Abstract: A cage and roller assembly includes a plurality of rollers to be brought into rolling contact with a raceway surface provided on the outer periphery of a shaft, and an annular cage that retains the rollers. Lubricating oil is supplied through an oil supply hole that is provided inside the shaft and is open at the raceway surface. The cage includes a pair of annular portions, and a plurality of cage bars that couple the annular portions together and are arranged with intervals in a circumferential direction. The rollers are housed in pockets each formed between the pair of annular portions and between the cage bars that are adjacent to each other in the circumferential direction. The cage has an inner recessed groove that is provided on a radially inner surface of the cage bar and extends through the annular portions in an axial direction.

Abstract: A cage and roller assembly includes rollers and an annular cage. The cage includes annular portions having guide surfaces and cage bars that couple the annular portions together. Each of the cage bars includes a cage bar body provided in an axial center portion of the cage bar and having an oil reservoir bottom face on a radially outer side of the cage bar body, the oil reservoir bottom face located on a radially inner side with respect to the guide surface, and a detachment preventing portion provided at both axial ends of the cage bar body and having an outer claw that covers a part of the roller from the radially outer side. The detachment preventing portion is provided with an outer recessed groove configured as a passage for causing lubricating oil to flow toward the guide surface from the oil reservoir bottom face through the detachment preventing portion.

Abstract: A drive force distribution apparatus includes a hollow shaft that rotates as a unit with a ring gear, a tubular clutch housing that is not allowed to rotate relative to the hollow shaft, a first multi-plate clutch located between the clutch housing and a first clutch hub, a second multi-plate clutch located between the clutch housing and a second clutch hub, and a stopper ring that keeps the clutch housing from coming off the hollow shaft. The stopper ring threadedly engages with a screw hole that is formed in the hollow shaft. An outer engagement portion of the hollow shaft engages with an inner engagement portion of the clutch housing. At least part of the outer engagement portion is located in the outer circumference of the screw hole.

Abstract: The invention concerns a method for determining the direction of longitudinal travel of a vehicle comprising a step (a) of collecting a first signal (Signal1), representative of a first driving parameter, such as the steering-wheel torque, and of which the sign of the value and/or the sign of the variations is not dependent on the direction of longitudinal travel of the vehicle, a step (b) of collecting a second signal (Signal2), representative of a second driving parameter separate from the first driving parameter, such as the yaw rate, and of which the sign of the value and/or the sign of the variations changes on the basis of the direction of longitudinal travel of the vehicle, then a step (c) of comparing signs during which the sign of the value, or of the variation, of the first signal (Signal1) is compared with the sign of the value, or of the variation, of the second signal (Signal2) in order to deduce therefrom the direction of longitudinal travel of the vehicle, depending on whether said signs are id

Abstract: A one-way clutch used in a wind power generation device integrally rotatably connects an input rotating body and an output rotating body to each other in a state in which a rotational speed of the input rotating body exceeds a rotational speed of the output rotating body, and breaks connection between the input rotating body and the output rotating body in a state in which the rotational speed of the input rotating body is lower than the rotational speed of the output rotating body. The input rotating body and the output rotating body are allowed to relatively move along an axial direction, and a maximum allowance of movement is set to be larger than variation of a distance along the axial direction between an input shaft and an output shaft caused by state change.

Abstract: A method of manufacturing a wheel has a step (a) during which, by injecting a first polymer material into a first mold, a bearing core is created that extends from a radially internal wall that forms the ball of a steering axis, as far as a radially external peripheral edge, followed by a step (b) of coating during which step a coating layer is overmolded in a second polymer material over the bearing core to form a rim around the peripheral edge, the method being such that during step (a) of creating the bearing core, a preformed reinforcing hoop made of a third material referred to as “reinforcing material” is placed in the first mold then the reinforcing hoop is at least partially embedded in the peripheral edge during injection of the first material.

Abstract: A valve device for a gas tank, includes a body and a check valve provided in an injection passage to inject gas into the gas tank. The check valve includes a valve seat, a case fixed in the injection passage while a space is provided between an inner peripheral surface of the injection passage and the case to enable gas to flow through the space, and a valve element accommodated in the case. The case includes a cylindrical portion, and is configured such that the bottom of the cylindrical portion, provided at an opposite side to the valve seat, defines a range where the valve element is axially movable. The valve element includes a head portion that can block a valve hole of the valve seat, and a sliding portion formed to be axially movable with respect to the cylindrical portion.

Abstract: A tilt device includes: a drive motor that provides a drive force for swinging a tilt member; an auxiliary cylinder coupled to the tilt member to assist swing of the tilt member by the drive motor; and a control device that performs drive control of the drive motor and the auxiliary cylinder. In the movable range of the tilt member, a moment about the swing axis generated in the tilt member by the gravitational force is always directed to only one side in the rotational direction, and an assistive moment about the swing axis provided to the tilt member by a cylinder pressure is always directed to only the other side in the rotational direction. The control device fluctuates the cylinder pressure such that the assistive moment is less than the moment generated in the tilt member by the gravitational force.

Abstract: A differential includes a clutch ring and an actuator. The clutch ring restricts rotation of a first side gear relative to a differential case. The actuator axially moves the clutch ring. The actuator includes an electromagnetic coil, a yoke, and an armature. The armature slides on an outer peripheral surface of the electromagnetic coil so as to move axially. The yoke includes a side wall facing an axial end face of the electromagnetic coil. At least one of an outer peripheral surface of the side wall and an inner peripheral surface of a cylindrical portion of the armature is provided with an inclined portion to prevent one of the outer peripheral surface and the inner peripheral surface from coming into contact with the other one of the outer peripheral surface and the inner peripheral surface.

Abstract: A differential includes first and second side gears, a differential case, a spacing member, and a clutch ring. First and second driving shafts are respectively coupled to the first and second side gears. The differential case houses the first and second side gears. The spacing member is inserted into the differential case through an insertion hole of the differential case. A head of the spacing member is disposed in an inter-shaft space between the first and second driving shafts so as to maintain a spacing of a predetermined distance or more between the first and second driving shafts. The clutch ring is axially movably disposed between the first side gear and the second side gear. The clutch ring meshes with the second side gear so as to restrict rotation of the second side gear relative to the differential case.

Abstract: A cage of a ball bearing includes an annular portion located on a first axial side with respect to balls, the first axial side being one side in an axial direction of the ball bearing, and cage bars extending from the annular portion toward a second axial side, the second axial side being the other side in the axial direction of the ball bearing. A space located on a second axial side of the annular portion and defined between any two of the cage bars adjacent to each other in a circumferential direction serves as a pocket that accommodates a corresponding one of the balls. The pocket has a contact surface that is brought into point contact with the ball at an intersection point between a rotational center axis of the ball and a surface of the ball when the cage is displaced toward the second axial side.

Abstract: A thrust roller bearing includes rollers arranged in a radial manner, an annular cage that retains the rollers such that the rollers are rollable, an annular outer race located on one side of the cage in an axial direction of the cage and having a first raceway on which the rollers roll, and an annular inner race located on the other side of the cage in the axial direction and having a second raceway on which the rollers roll. At least one of the first raceway and the second raceway has a Vickers hardness that is greater than or equal to 800 and less than or equal to 950. The outer circumferential surface of each of the rollers has a Vickers hardness that is greater than or equal to 697 and less than 800.

Abstract: A steering system includes a steering shaft, a fixed bracket, a column jacket, and a lock mechanism. The lock mechanism includes an insertion shaft, an operation member, a first pressing member, a second pressing member, and a drive mechanism. The lock mechanism is configured to lock a position of the column jacket relative to the fixed bracket after the tilt adjustment. The drive mechanism is configured to move at least one of the first pressing member and the second pressing member so that the first pressing member and the second pressing member approach each other in an insertion axis direction of the insertion shaft along with rotation of the operation member.

Abstract: Cutting machining is performed on a workpiece by making a cutting tool travel relative to the workpiece while rotating the cutting tool such that a peripheral speed of the cutting tool becomes equal to or more than a cutting speed of the cutting tool, while an outer peripheral surface and an end surface of the cutting tool function as a rake surface and a relief surface, respectively.

Abstract: A solenoid valve device includes a body including a gas passage and an accommodation portion communicating with the gas passage, a solenoid valve that is accommodated in the accommodation portion and that controls flow of gas by opening and closing the gas passage, a sealing member disposed between the accommodation portion and the solenoid valve to maintain airtightness of the gas passage, and a solenoid that generates power for the solenoid valve to open and close the gas passage, wherein the body is provided with a communication hole that allows communication between inside and outside of the accommodation portion; the solenoid includes a connection terminal portion extending toward the communication hole; and a connector is accommodated in the communication hole in a manner such that rotation of the connector in a circumferential direction about an axis of the communication hole is suppressed.

Abstract: An operation program editing device includes a program editing portion configured to edit an operation program executable by a programmable controller that controls a facility, and the program editing portion includes a bypass circuit generation unit that generates a bypass circuit including a bypass path for skipping execution of some of the plurality of steps at a time of reactivation of the facility, a first selection receiving unit that receives selection of a last step, from among the plurality of steps, within a range where the execution is skipped by the bypass circuit, and a second selection receiving unit that receives selection of a first step, from among the plurality of steps, within the range where the execution is skipped by the bypass circuit.

Abstract: The microcomputer calculates a first assist component based on a vehicle speed value and a steering torque, calculates a rotation angle command value based on at least the vehicle speed value and a first assist component, and calculates a second assist component by adjusting a rotation angle to the rotation angle command value through feedback control. The microcomputer sets a limited state 1 where the second assist component is disabled when a vehicle is stationary. During an abnormality determination period during which the vehicle speed value is determined to be abnormal, the microcomputer sets the vehicle speed value to a provisional vehicle speed value. Further, in a limited state 2 that is set when the vehicle is stationary during the abnormality determination period, the microcomputer calculates the first assist component based on a provisional vehicle speed value, and disables the second assist component.

Abstract: The invention relates to a method for producing a gear, said method including a step (a) during which a supporting core is made from a first polymer material, said supporting core comprising a hub, with a director axis (XX?), as well as a flange which extends radially from said hub to a peripheral flanged edge, said method then involves a coating step (b) which comprises producing a permanent coating layer, made of a second polymer material, by overmolding on the supporting core, including integrally both a front layer which covers the upper surface of the flange, and a side layer which extends said front layer axially by covering the outer radial surface of the flanged edge, such that said side layer forms a rim, the teeth of the gear being made in the radial body of said rim.