Abstract: A spinning arm that converts a rotational motion of a shaft to a linear movement of an object that includes a revolving piece and a rod. The lower end of the rod is connected to the shaft and the upper end is axially connected to the revolving piece in a state of tilting aside in relation to the rod so that the revolving axis line of the revolving piece crosses the rotation axis line of the rod. The revolving piece can move outwards and roll over the object when its tilt is from right to left. When the revolving piece rolls over the object in a first direction it exerts an upward force that moves the object upward, and when it rolls in a second direction it exerts a downward force that moves the object downward.

Abstract: A shift device according to one embodiment includes a case having a cylindrical portion; a shift lever configured to include a base portion provided to be rotatable inside the cylindrical portion, with which an operator performs a rotation operation; a shift position holding mechanism configured to hold the shift lever at a predetermined shift position; and an elastic member configured to protrude from one of the cylindrical portion or the base portion so as to face another of the cylindrical portion or the base portion, and contact either an outer circumferential surface of the base portion or an inner circumferential surface of the cylindrical portion, to impose a rotational load on the shift lever.

Abstract: A gear manufacturing method, the gear including an annular gear portion including teeth on an outer periphery, an annular support portion provided on an inner peripheral surface of the gear portion and supporting the gear portion, and a core portion provided inside the support portion, the method includes: a support portion molding step of molding the support portion by disposing the gear portion and the core portion in an annular mold and filling a resin between the gear portion and the core portion; and a support portion cooling step of cooling the support portion molded in the support portion molding step, a radial gap between the teeth of the gear portion and the mold before the support portion molding step is set to be smaller than a radial shrinkage amount of the support portion in the support portion cooling step.

Abstract: It is included an internal gear (2), an external gear (3) having flexibility, and a wave generator (4) that forms a meshing part (P) with the internal gear (2) in the external gear (3) and moves the meshing part (P) in a circumferential direction of the internal gear (2). The wave generator (4) is configured such that the meshing part (P) is formed at three or more positions in a circumferential direction of the external gear (3). A value (DpF/ZF) obtained by dividing a working pitch diameter DpF of the external gear (3) by the number of teeth ZF is greater than a value (DpR/ZR) obtained by dividing a working pitch diameter DpR of the internal gear (2) by the number of teeth ZR.

Abstract: A radial-type anti-backlash nut for use upon linear actuator leadscrews uses a separate housing resting upon the actuator's main nut. The anti-backlash action is a multi-finger collet and spring setup located inside the housing. The collet tapers radially inward toward tips of the fingers at a specified taper angle. The whole interior length of an internal thread of the collet engages an external thread of the leadscrew. The housing is a pre-load nut with an internal tapered surface that mates with the collet fingers with substantially the same taper angle. The pre-load nut, when screwed onto external threads of the adjustment nut, both compresses a load spring and applies radially inward adjustable load force to the collet fingers against the leadscrew. Three tolerances adjust load: the taper angle of the main nut's collet fingers, the spring load's compression, and the collet finger mismatch with respect to the lead screw.

Abstract: A piston, in particular for a gear-change selector, including a piston body with a piston skirt and with a piston end face which can be pressurised with a working fluid. The piston includes a first sealing portion and a second sealing portion. The piston body and the first sealing portion have mutually complementary geometries so that they form a first vent channel. The first vent channel is arranged in a hydraulic series circuit with the second sealing portion. The second sealing portion prevents venting up to a first pressure and allows this above the first pressure. The invention furthermore concerns a gear-change selector and a gearshift for a vehicle.

Abstract: A transmission includes a housing having a first end and a second end opposite the first end, a carrier mounted to the housing, an input shaft, an output shaft, a passage that extends from the housings first end to the housings second end to allow a via through the housing, an input sensor, and an output sensor. The carrier has a first side that faces in a first direction, and a second side that faces in a direction other than the first direction. The input sensor is mounted to the carrier and disposed on the first side of the carrier. The output sensor is mounted to the same carrier and disposed on the carrier's second side. The input and output shafts rotate about the same axis.

Abstract: The present invention relates to a linear drive (1) having a drive shaft (10) along a longitudinal axis (X), at least two propelling teeth (20), and at least one gear rack (30) comprising a plurality of teeth (31), wherein the propelling teeth (20) are reciprocatingly movable perpendicularly to the longitudinal axis (X) and are drivingly connected to the drive shaft (10) such that said at least two propelling teeth (20) carry out at least one cyclical reciprocating movement (21) during the course of one rotation (?) of the drive shaft (10), dipping into and out of the at least one gear rack (30) in order to produce propelling motion along the longitudinal axis (X), and wherein the cyclical reciprocating movement (21) of the at least two propelling teeth (20) have phase shifts (??). Furthermore, the present invention relates to a longitudinal-adjustment unit as well as to a motor vehicle coprising such a longitudinal-adjustment unit.

Abstract: The present disclosure relates to a transmission apparatus of an agricultural working automobile, the transmission apparatus comprising: a first gear-shifting part for performing gear-shifting to adjust the speed of an agricultural working automobile; and a second gear-shifting part for performing gear-shifting to adjust the speed of the agricultural working automobile, wherein the second gear-shifting part comprises a sub-gear-shifting drive mechanism for performing gear-shifting, using one operation selected from among an operation transferred through a first power transmission path from the first gear-shifting part and an operation transferred through a second power transmission path from the first gear-shifting part.

Abstract: A medical instrument includes a roll mechanism that rotates an instrument shaft. The roll mechanism may include a first gear coupled to the instrument shaft and meshed with a second gear. One of gears may be a spur gear while the other gear may be a beveloid gear. Further, the spur gear and the beveloid gear may be in a gear train containing a compressible gear, e.g., a gear with an inner center piece, an outer ring, and a flexible interconnecting structure between the inner center piece and the outer ring. With a compressible gear, an interference fit of in the gear train may be within manufacturing variations of the gear train, and the compressible gear may deflect radially away from the interference fit.

Abstract: Provided is a method for producing a gear including an intermediate product forming process of solidifying a fluid material to form a gear intermediate product, and a tooth forming process of cutting the gear intermediate product to form teeth.

Abstract: A transverse cycloid-pin gear pair includes a cycloidal gear with a cycloidal tooth flank and a pin gear with a pin tooth flank, the pin gear meshing with the cycloidal gear in a nutation transmission manner. Angles between reference surfaces of the pin gear and the cycloidal gear and corresponding axes are between 88° and 91°, and a sum of the two angles is less than 180°. Portions of the pin tooth flank and the cycloidal tooth flank are pin gear working flank and cycloidal gear working flank, respectively. A pressure angle between the pin gear working flank and the cycloidal gear working flank when meshing satisfies 45°???5°???45°??+5°, where ? is the pressure angle, ? is a friction angle. A nutation deceleration device comprises a shell, a transverse cycloidal-pin gear pair, an input mechanism, an output mechanism, and a torque transfer component.

Abstract: The present invention relates to a linear drive (1), comprising a drive shaft (10) arranged along a longitudinal axis (X), at least two propulsion teeth (20), and at least one rack (30) having a plurality of teeth (31), wherein the propulsion teeth (20) can move in a stroke transversely to the longitudinal axis (X) and are drivingly coupled to the drive shaft (10) in such a manner that the at least two propulsion teeth (20) perform at least one cyclical stroke movement (21) in the course of one rotation (?) of the drive shaft (10) and enter and exit the at least one rack (30) to generate a propulsion in the longitudinal axis (X), and wherein the cyclical stroke movement (21) of the at least two propulsion teeth (20) takes place with a phase shift (??). In addition, the present invention relates to a longitudinal adjustment unit and to a motor vehicle having such a longitudinal adjustment unit.

Abstract: One aspect of the present invention provides a method for manufacturing a strain wave gear device. The method includes steps of measuring a between pin diameter of an internal gear, measuring an over pin diameter of an external gear, where the external gear is to be placed radially inside the internal gear, configured to mesh with the internal gear, and flexible, measuring a dimension of a bearing, where the bearing is to be placed radially inside the external gear, and flexible, and machining an elliptical cam, where the elliptical cam is to be placed radially inside the bearing, and configured to flex the external gear in a non-circular manner. The elliptical cam is machined based on the measured dimensions of the internal gear, external gear and bearing such that the internal and external gears mesh with each other at a constant position.

Abstract: To provide a nut that can suppress increase in the number of components. The nut according to the present disclosure includes a nut main body and a circulation component. The nut main body includes a housing part having a bow shape when viewed from an axial direction, a seat surface, a through hole, and a pair of side surfaces. The circulation component includes a circulation component main body, two arm parts extending toward both sides in a seat surface direction from the circulation component main body, ribs projecting from the respective two arm parts, and caulking parts obtained by caulking the ribs. Recessed parts that the caulking parts enter are disposed on the pair of side surfaces. A ball passage is disposed in the circulation component main body.

Abstract: A sensor device for a steering actuator, the sensor device may include: a pinion shaft mounted on a housing part; a first pinion gear integrated with the pinion shaft by injection molding; and a sensor unit coupled to the first pinion gear.

Abstract: A bearing unit is provided with a strain element for torque detection. The strain element is provided with a first annular part attached to a rotation-side member, a second annular part attached to a load-side member, and a plurality of ribs serving as strained parts linking the first annular part and the second annular part together. One of an inner race and an outer race is integrally formed on the first annular part of the strain element. Deformation, which occurs in the ribs of the strain element due to torque exerted on the rotation-side member from the load-side member, is detected by a strain gauge, etc., and converted to torque. The strain element for torque detection can be incorporated into a motor, a reducer, or another rotary propulsion unit without the need for a dedicated installation space and without the need for fastening fittings, etc.

Abstract: An input cam having a recessed track for establishing a desired dwell time for a plurality of rotatable permanent magnets and an output cam having a recessed track for maximizing the harnessing of linear motion energy and to apply the harnessed energy to a rotary output are provided to improve the efficiency of a magnetic transmission.

Abstract: A system for producing a relative centripetal force differential includes a turntable having a plurality of spoke units arranged along radial lines around the center of the turntable. Each of the spoke units is attached to the turntable and has a mass that is moved a drive unit of the respective spoke unit along the radial line, based on its present position of rotation around the center of the turntable. As the turntable is rotated mass of each spoke elements is moved such that it is at a minimum distance through a minimum distance region, at a maximum distance through a maximum distance region that is opposite the minimum distance region, and increased or decreased through transition regions on either side of the minimum and maximum distance regions.

Abstract: A rotating component includes a metal plate fixed to an end portion of the metal shaft, and a resin valve gear integrally formed with the plate by insert molding. The plate is formed with a circular fitting hole that fits with the end portion of the shaft, and a positioning recess that is recessed from one side to the other side of the plate.