Abstract: A robot includes one or more rotary joints, each of the rotary joints including a motor, a reducer that reduces the rotational speed of the motor, and a first member and a second member that are connected by the reducer and that are supported so as to be rotatable about a center axis of the reducer. The first member of at least one of the rotary joints is provided with a flange securing portion that secures a flange of the motor at an eccentric position with respect to the center axis of the reducer. Bolts that secure the first member to the reducer are disposed in a region in which the flange is disposed when viewed from a direction along the center axis.

Abstract: A gear pairing for a helical gear unit or a spur gear unit, comprising a first gear with a first toothing portion, and a second gear with a second toothing portion, wherein the first gear has a first axis and the second gear has a second axis, which enclose a shaft angle, which is between 0 and 90°, the first toothing portion and the second toothing portion can be brought into meshing engagement and, when engaged, form an involute toothing, the materials of the first and second toothing portions are chosen so that, when engaged, a material pairing metal/plastic results, and the toothing portion made of plastic has a first helix angle and the toothing portion made of metal has a second helix angle.

Abstract: A multi-piece gearwheel comprising an inner core section and an external toothed ring with external teething is presented. The core section has intermeshing teeth extending radially outwards, which have an undercut in cross-section in the radial direction. The toothed ring has recesses that originate from an inner side of the tooth ring and extend radially outwards, wherein the recesses are at least partially complementary to the intermeshing teeth, and wherein the intermeshing teeth are received in the recesses. Furthermore, a gearbox for an electromechanically-assisted steering system is described.

Abstract: An apparatus and a method for converting linear motion to rotary motion are provided. In some embodiments, the apparatus may include a plate having a plurality of connection points and a channel. The apparatus may also include a wobbler having an end that extends along the first axis and a cylindrical body having a second axis that is offset from the first axis by a first angle. The plate may be rotatably connected to the cylindrical body and configured to rotate about the second axis. The apparatus may further include a plurality of flexure assemblies connected to the plurality of connection points of the plate.

Abstract: An inline gearbox for a land vehicle that includes an engine having a clutch housing for the transmission of rotational force from the engine to one or more wheels for propelling the land vehicle, wherein the inline gearbox includes a fast-change gear assembly.

Abstract: In a shift device (10), a base portion (42) of a collar (40) is accommodated in a mounting hole (50) of a support portion (34), and a thin plate portion (52) of the support portion (34) is disposed at an upper side of an upper face (42A) of the base portion (42). When an impact load of at least a predetermined value is applied to a shift lever, the thin plate portion (52) of the support portion (34) is broken by the base portion (42) and the support portion (34) moves while being guided by the base portion (42). Thus, the impact load is absorbed. Consequently, an impact load absorption mode may be made consistent.

Abstract: In one embodiment, a robotic limb includes a scissor linkage. In one embodiment, the scissor linkage includes a rotatable connection, two proximal links, and two motors configured to selectively rotate the two proximal links. Relative rotation between the two proximal links selectively controls extension, retraction, and rotation of the scissor linkage. Additional embodiments are related to scissor linkages including links designed to be have specific length relationships to avoid a singularity occurring during operation. In some embodiments, links may include torque transmissions to avoid singularities and/or to transmit torques to a distal portion of a scissor linkage for use in actuating other components including another scissor linkage arranged in series with first.

Abstract: A ball screw drive includes two screw drive parts (3, 4), namely a lead screw (3) and a nut (4). The ball screw drive also includes a deflection element (6) for the individual deflection of balls (5) is inserted into a recess (7), formed by one of the screw drive parts (3, 4), such that a gap (16) is formed between the base (15) of the recess (7) and the deflection element (6), and such that lateral contact surfaces (17) of the deflection element (6) which are located next to the recess (7) rest on the screw drive part (3, 4).

Abstract: An intermittent drive device includes a tooth-missing gear having a tooth row partially missing, an output gear, an input gear provided with a first tooth row receiving a driving force and a second tooth row transmitting the driving force to the tooth-missing gear and arranged at a position apart from the output gear in a rotation axis direction. A shaft joint member moves in the rotation axis direction to a first position where the driving force is transmitted to the output gear and a second position where the transmission is released. A tooth-missing gear control mechanism starts rotation of the tooth-missing gear from a state where the driving force from the input gear is released and meshes with the input gear. A switching mechanism switches a position of the shaft joint member in the rotation axis direction between the first position and the second position.

Abstract: A bearing including a bearing ring having an annular base and a plurality of gear teeth integrally formed with the annular base. Each gear tooth of the plurality of gear teeth includes a first flank surface extending substantially radially from the annular base, a top land surface extending substantially in the axial direction, and a chamfered surface between the top land surface and first flank surface. The chamfered surface includes a first arc with a first radius in a range of 0.1 to 0.15 times the gear module of the bearing ring. The first arc has a point of tangency with the first flank surface. The chamfered surface has length P extending in the radial direction between the point of tangency and the top land surface, and P is in the range of 0.1 to 0.15 times the gear module of the bearing ring.

Abstract: A robotic apparatus includes a first guide rail; an elongate support attached to the first guide rail, the elongate support being movable along the first guide rail in two directions and rotatable at each position along the first guide rail; a first limb movable along a second guide rail in the elongate support, the first limb being extendable and retractable; a second limb pivotably attached to the first limb; an end effector mount located at the second limb and rotatable at one end of the second limb; and a third guide rail attached to the elongate support to guide movement of the elongate support in the two directions that the elongate support is movable along the first guide rail; and driving mechanisms to drive movements of the robotic apparatus.

Abstract: An electronic shift lever includes a motor part configured to generate a driving force according to an input signal from a controller which receives an input signal from a user, an output shaft assembly coupled to the motor part and rotated by a driving force of the motor part, a manual shaft coupled to the output shaft assembly and configured to receive the driving force of the motor part, a support member disposed between the motor part and the output shaft assembly and between the housing and the output shaft assembly, a magnet rotor having a first end into which the output shaft assembly is inserted and a second end through which the manual shaft passes, a Hall sensor configured to detect a rotational position of the magnet rotor, and the housing which accommodates the motor part, the output shaft assembly, the support member, and the Hall sensor.

Abstract: A 2 DOFs decoupling parallel mechanism provided by the present disclosure comprises a fixed platform, a rotation assembly, a moving platform, an arc kinematic chain, and an arc rod. In the 2 DOFs decoupling parallel mechanism, the rotation assembly can drive the moving platform to rotate by 360 degrees around a direction being perpendicular to the fixed platform, the arc rod reciprocates along the tangential direction of the arc kinematic chain to enable the moving platform to rotate around an axis of a plane where the arc kinematic chain is located. In this way, the rotations of the moving platform in two directions are respectively driven by driving units in two directions and being independent from each other, such that the two rotation actions of the mechanism have decoupling capability.

Abstract: A robot arm (500) for end-effector motion. The robot arm comprises a first actuator (4) and a first kinematic chain from the first actuator to an end-effector platform, which gives a first degree of freedom for positioning the end-effector platform. The robot arm also comprises a second actuator (5; 5b) and a second kinematic chain from the second actuator to the end-effector platform, which gives a second degree of freedom for positioning the end-effector platform. The robot arm further comprises a third actuator (6; 6b, 512) and a third kinematic chain from the third actuator (6; 6b) to the end-effector platform, which gives a third degree of freedom for positioning the end-effector platform. The robot arm also comprises a fourth actuator (50; 150) and a fourth kinematic chain configured to transmit a movement of the fourth actuator to a corresponding orientation axis (65) for an end-effector (28).

Abstract: A cable-driven robot has a base, a platform movable with respect to the base, a plurality of motors mounted on the base, and a plurality of movement cables of the platform each fixed at a first end at a respective fixing point to the platform and at a second end thereof to a respective motor. The robot further includes a shaft rotatably mounted on the platform, a supplementary movement cable, and a supplementary activating motor mounted at a respective position on the base. The supplementary movement cable is fixed, at a first end, to the supplementary activating motor and is wound with a portion of its length on the shaft.

Abstract: A centrifugal impact transmission between a drive shaft (1) with one or more rotors (1) and one or more driven shafts (6) parallel to the drive shaft (1): each rotor (1) or rotor level (1) includes one or more arms (2) joined to the rotor (1) by a joint (4) and with a mass (3) at the free end thereof, which can be disconnected via a clutch. Each driven shaft (6) includes at least one lever (7), joined to the driven shaft (6) via a one-way clutch, and aligned with a rotor (1), the lever (7) having a return mechanism (8). In this way, each arm (2) has at least one lever (7) aligned with it, and the rotation of each rotor (1) produces the consecutive impact of the arms (2) thereof on each lever (7) aligned with the rotor (1).

Abstract: An eccentric gear structure includes a gear block and an eccentric block embedded into the gear block; the gear block is provided with an accommodating cavity suitable for embedment of the eccentric block, the eccentric block is provided with a first through hole and a second through hole that deviates from the first through hole; an embedding hole is provided at an axis of the gear block, and an axis of the first through hole coincides with an axis of the embedding hole. The eccentric gear structure ensures the quality of the product through the embedded structure.

Abstract: To provide an expansion device and a movable body including a mechanism for quick deformation. An expansion device includes a main body and a limb portion attached to the main body, in which the limb portion includes a main link connected to the main body via a joint, an end link provided at a front end of the limb portion, at least one or more limb joints that are interposed between the main link and the end link and connect the main link and the end link, and a linear member of which both ends couple an end at the front end side of the limb portion of the end link and the main body and are retractable to one or both of the end link and the main body.

Abstract: The present invention provides a four-chain six-degree-of-freedom hybrid mechanism. The four-chain six-degree-of-freedom hybrid mechanism comprises a fixed platform, a sliding rail mounted on the fixed platform, two sliding blocks, a mobile platform and four linear actuator chains connecting the mobile platform with a first sliding block and a second sliding block. The mobile platform is square-shaped. In the four linear actuator chains, the first linear actuator chain and the third linear actuator chain have the same structure while the second linear actuator chain and the fourth linear actuator chain have the same structure. The mobile platform can achieve six degrees of freedom. The four linear actuator chains coordinate to drive so as to achieve two translational degrees of freedom and two rotational degrees of freedom; the first sliding block and the second sliding block coordinate to drive so as to achieve the other translational and rotational degrees of freedom.

Abstract: A parallel link robot includes: a base portion; a movable portion; arms that connect the base portion and the movable portion in parallel; base actuators that are disposed on the base portion and that drive the respective arms; an additional actuator that drives an additional mechanism portion attached to the movable portion; an auxiliary link that pivotally connects the additional actuator to at least one of the arms; and a power transmission shaft portion that transmits a rotational driving force of the additional actuator to the additional mechanism portion. Each of the arms includes a drive link and two passive links. The auxiliary link bridges the two passive links and is pivotally connected to each of the two passive links. The power transmission shaft portion includes a ball spline in which a spline shaft and a nut are meshed with each other.