Abstract: The starter includes an electromagnetic switch includes a first solenoid for pushing out the pinion shaft to an engine side and a second solenoid for opening and closing a main contact through which a current is supplied to a motor. The first and second solenoids are disposed coaxially with the pinion shaft. The first and second plungers included in the first and second solenoids, respectively are disposed overlapping with each other in the axial direction of the starter such that a rear portion of the first plunger enters inside the second plunger when they are deenergized.

Abstract: A linear actuator device for pieces of furniture, e.g. beds, is described which include an adjustable section (2, 3) pivotally embedded in a frame (1). The section (2, 3) is raised and lowered by at least one rod (23, 24) mounted on a pivot shaft (4, 6). The actuator comprises a housing (8) with a bushing (10) receiving the pivot shaft (4, 6), and a spindle (14) driven by a low-voltage DC motor (11). The spindle (14) carries a spindle nut (12) fixed against rotation which in one direction of motion operates an arm (5, 7) mounted on the pivot shaft (4, 6) for adjusting the section within the piece of furniture. By designing the arm (5, 7) such that, when it engages the spindle nut (12), it will rest against an area (17) of the nut's end which faces farthest away from the shaft, an expedient moment curve for pivoting the section is obtained, as a large moment occurs at the beginning and the end of the section's movement just when needed.

Abstract: A reducer of an electronic power steering apparatus is disclosed. The reducer of an electronic power steering apparatus aids the operation of a steering wheel by the driver by preventing a clearance from being caused by frictional wear between a worm and a worm wheel, by reducing rattle noise caused by backlash, and by minimizing the change in the clearance due to a change in torque.

Abstract: A joint mechanism is for a robot. The joint mechanism includes a base; a first drive device mounted on the base including a first drive shaft; a second drive device including a second drive shaft; a joint body defining a plurality of toothed grooves and a guiding groove. A sliding board mounted on first drive shaft, the sliding board slidably located in the guiding groove to guide the joint body to swing relative to the base. A gear mounted on the second drive shaft, the gear meshes with the toothed grooves; a limiting assembly for rotatably mounting the joint body on the base. When the first drive device is started, the first drive shaft is rotated to drive the joint body rotating around the first drive shaft; when the second drive device is started, the second drive shaft is rotated to drive the gear rotating so the joint body swings relative to the base.

Abstract: Provided are a ball-type speed reducer and a rotary table device that are capable of performing high-speed rotation and high-rigidity rotation and suitable for reduction in size and weight. An index table 10 includes a ball-type speed reducer 20 and a table 50 that is fixed to an upper surface of a worm wheel 30 of the ball-type speed reducer 20. When the worm gear 22 rotates as the input shaft 24 of the ball-type speed reducer 20 rotates, balls 36 made of a magnetic material move along a ball groove 26 having a spiral shape. The worm wheel 30 rotates as the balls 36 move, and the table 50 rotates. The balls 36 are attracted and held by the permanent magnet 34 on the worm wheel 30 side, so that a case for preventing the balls 36 from coming off the worm wheel 30 can be omitted, whereby the total size and weight can be reduced. Backlash is not required, so that high-speed rotation and high-rigidity rotation are possible.

Abstract: A robot includes a base, a plurality of link mechanisms, at least one drive device, and a controller. The plurality of link mechanisms are provided on the base. Adjacent link mechanisms among the plurality of link mechanisms are connectable to each other. The at least one drive device is to bend and extend the plurality of link mechanisms. The controller is configured to control the at least one drive device.

Abstract: An industrial robot includes a first rotation assembly, a second rotation assembly, and a cable assembly. The first rotation assembly includes a holding seat, a first rotation shaft rotatably positioned in the holding seat, and a first driver driving the first rotation shaft to rotate. The second rotation assembly includes a fixing seat. The cable assembly is received in the first rotation assembly and the second rotation assembly. The fixing seat includes a main body and a retaining portion extending from one end of the main body, and the main body of the fixing seat is positioned on the holding seat and fixed with the first rotation shaft of the first rotation assembly. The main body of the fixing seat defines a passing slot to receive the cable assembly and a passing hole communicating with the passing slot through which the cable assembly passes.

Abstract: A differential roller screw comprises an outer nut, and rolling elements comprising a first set of rollers equipped with first grooves, the first set being arranged in a first cylindrical ring around the screw. The screw comprises a second set of rollers equipped with second grooves. The second set is arranged in a second cylindrical ring. The two cylindrical rings are coaxial. An intermediate cylindrical element is arranged between the two sets of rollers, the intermediate element comprising a first internal thread formed with a first pitch and having a first direction and a second external thread formed with a second pitch and having a second direction opposite the first direction.

Abstract: An actuating device for selecting gear steps in a gearshift transmission. The actuating device comprises a selector lever that can be moved between at least two drive-setting positions and a locking mechanism for restricting the movement range of the lever and locking certain positions or for locking the selector lever. The locking mechanism comprises a locking recess connected to the selector lever and a blocking cam that can be rotated by an actuator. The cam engages in the locking recess. Complex locking tasks are possible with the simplified actuating device. In addition, the range of movement of the selector lever can be freely positioned largely variably and its width can be changed. Furthermore, the selector lever of the actuating device is movable by the actuator or locked in a desired position.

Abstract: Disclosed is a bearing system for a worm engaging with a worm wheel as part of a steering gear, wherein the bearing system comprises at least one bearing with an outer ring, an inner ring, and rolling bodies that are movably accommodated between the outer an inner rings, the bearing being pivotally arranged in a bearing seat for accommodating the outer ring of the bearing, and wherein the inner ring accommodates one of the two shaft ends of the worm in order to seat said shaft end of the worm radially in the housing of the steering gear. For an improved dampening of the worm at least one spring element, which exerts a spring force on a region of the outer ring of the bearing, is provided at the bearing, said spring force supporting a pivotal motion of the worm toward the worm wheel.

Abstract: Robots, and atomic force microscopes including robots, that utilize in-plane actuators to provide large out-of-plane working volumes and forces.

Abstract: A system, method and means is provided for withstanding mechanical shock for use with fluid dynamic bearings. A sealing system is provided that withstands 1000 G shock events. In an aspect, a grooved pumping seal employed between a thrust plate and a shield, a thrust plate having spiral grooves, a fluid recirculation passageway, and a reservoir creates an asymmetric pressure gradient. In an aspect, fluid is retained and air is purged utilizing an enlarged fluid reservoir, axial channels and an angled fill hole. In an aspect, a shaft is attached to a top cover supplying radial stiffness, and an enlarged single-sided thrust plate improves dynamic parallelism.

Abstract: A deflector for use in a ball screw is composed of a main body and a junction member connected with the main body to form a channel having a first guide groove and two second guide grooves formed at two opposite sides of the first guide groove. Each of the second guide grooves has two walls extending outward from the first guide groove. Each two of the walls have a conjunction formed therebetween. The vertical section of the channel can define an extending axis passing through centers of the two conjunctions. At least one of the walls of each second guide groove is not parallel to the extending axis. In light of the above features, the roller chain can avoid wear and tear to prolong its service life thereof. Besides, the mold for forming the deflector can be designed to be structurally subject to mold release, such that the production efficiency can be increased.

Abstract: A robot includes a base a movable platform, a plurality of control arms, a first actuator, a plurality of second actuators, and a rotation mechanism. The plurality of control arms are rotatably connected to the base and the movable platform respectively. The second actuators are configured to respectively drive the control arms to swing. The rotation mechanism includes a shaft rotated by the first actuator. The shaft is rotatable relative to the base and the movable platform is positioned around at least two axes. The at least two axes include two axes substantially perpendicular to each other. The shaft is slidable relative to the base.

Abstract: A swing leaf operator having a closer portion. The closer portion has an output shaft, on which a cam disc is torsion-resistantly disposed, as well as a pressure roller. A closer spring presses the pressure roller against a running surface of the cam disc. The pressure roller is disposed such that, during an opening or closing of a swing leaf coupled to the output shaft, the pressure roller is moved along a path. The path bypasses the axial center of the output shaft and on account of the configuration of the running surface of the cam disc, in different modes of operation of the swing leaf operator at a respective opening angle of the swing leaf, a very similar or identical torque is respectively applied to the output shaft. The swing leaf operator has a drive motor in operational connection with the output shaft.

Abstract: An exemplary translational branch joint for a parallel robot includes a swing arm connected to a four-bar linkage. The four-bar linkage includes two parallel connecting bars, a first link member, a second link member, and joint members. The first link member and the second link member connect the connecting bars. Each joint member comprises a first joint portion and a second joint portion extending from the first joint portion. The first joint portion has a first axis, and the second joint portion has a second axis substantially perpendicular to the first axis. The first joint portions of the joint members are rotatably connected to ends of the first link member and the second link member, and the second joint portions of the joint members are rotatably connected to ends of the connecting bars.

Abstract: Excellent durability can be achieved by reducing thermal influences of the excessive load from the engine side for a clutch roller (13) in a unidirectional rotation clutch system that is helical-splined to a drive shaft that rotates in response to a driving force of a motor and structured such that the motor driving force can be transmitted while an engine driving force cannot be transmitted when an engine stars, wherein a compound film composed of an external mixed phase and an internal diffused phase is formed on the clutch roller (13) subjected to nitriding by tufftriding with nitrogen being penetrating and diffusing.

Abstract: A device for preventing backlash in a gear train, comprising a first and second drive gear, driven by a first and second motor, with a driven gear, a system controller defining a nominal trajectory of said driven gear, a position feedback controller for calculating a speed set point, a phase controller for calculating a difference between said first and second motor torque, providing torque upper and lower levels, comparing said difference to said upper and lower levels and adjusting the phase set point for said first and second motors based at least upon the comparing, where the phase is reduced if said difference is greater than or equal to said upper level, said phase is increased if said difference is less than or equal to said lower level, and said phase is kept constant if said difference is greater than said lower level and less than said upper level.

Abstract: A robot arm assembly includes a support arm, a lower arm rotatably connected to the support arm, an upper arm rotatably connected to the lower arm, a first driver for driving the lower arm, a first transmission transferring power from the first driver to the lower arm, a second driver for driving the upper arm, and a second transmission transferring power from the second driver to the upper arm. The first and second drivers are mounted on the support arm. The second transmission includes a belt assembly, a beveled gear assembly driven by the belt assembly, and a speed reducer coupled to the upper arm.

Abstract: An object of the present invention is to impart a preferred continuous nonlinear characteristic to the relation between the magnitude of operation and an operational reaction force over the entire range of operation of operation means even when a reaction generation spring has a linear spring characteristic.