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WO/2024/090497A1 |
A support mechanism (30) that rotatably supports both ends of a screw shaft (21) in an axial direction comprises: a bearing unit (41) having a moving-side bearing housing (51) and a pair of angular ball bearings (33) fit inside the movin...
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WO/2024/090536A1 |
A ball screw used in a state in which the axis is tilted relative to horizontal, wherein the ball screw has a threaded shaft in which an outer circumferential thread groove is formed, a nut in which an inner circumferential thread groove...
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WO/2024/090499A1 |
Provided is a support mechanism (30) for rotatably supporting both ends of a screw shaft (21) in an axial direction, the support mechanism (30) comprising: a bearing unit (41) having a moving-side bearing housing (51), and a pair of angu...
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WO/2024/090496A1 |
This support mechanism (30) for rotatably supporting both ends in the axial direction of a screw shaft (21) comprises: a bearing unit (41) having a movement-side bearing housing (51) and a pair of angular ball bearings (33B) fitted into ...
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WO/2024/090498A1 |
A support mechanism (30) for rotatably supporting both axial-direction ends of a screw shaft (21) comprises: a bearing unit (41) having a movement-side bearing housing (51) and a pair of angular ball bearings (33); a support base (43); a...
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WO/2024/090170A1 |
A production method for a nut 5 used in a ball screw comprising a screw shaft 3 that has a helical ball rolling groove 3a formed on the outer peripheral surface thereof, the nut 5 that has a helical ball rolling groove 5a formed on the i...
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WO/2024/090500A1 |
A support mechanism (30), which rotatably supports both axial-direction ends of a screw shaft (21), is provided with a bearing unit (41) having a moving-side bearing housing (51) and a pair of angular contact ball bearings (33), a suppor...
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WO/2024/090501A1 |
A support mechanism (30) for rotatably supporting both axial end portions of a screw shaft (21) comprises: a bearing unit (41) having a moving-side bearing housing (51) and a pair of angular ball bearings (33B); a support base (43); and ...
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WO/2024/090733A1 |
A gearbox according to an embodiment comprises: a case disposed perpendicular to a lead screw; a worm gear provided on the inner top of the case and rotated by means of a motor; a worm wheel nut provided at the inner bottom of the case, ...
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WO/2024/088155A1 |
A hinge assembly (300), relating to the technical field of communications. The hinge assembly (300) is used for rotatably connecting a first device body (100) and a second device body (200) of an electronic device; the hinge assembly (30...
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WO/2024/084754A1 |
Provided is an electric actuator in which the number of movable parts in a motion conversion mechanism is small, and which has quietness of a small striking sound when an electrical driving part is operated. This electric actuator compri...
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WO/2024/085241A1 |
This ball screw comprises: a screw shaft having a spiral outer circumferential screw groove formed on the outer circumferential surface; a nut that is disposed in the surrounding of the screw shaft and that has a spiral inner circumferen...
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WO/2024/079855A1 |
Provided is a ball screw unit mounted to a screw shaft, the ball screw unit comprising a moving body which can move in the axial direction of the screw shaft as the moving body relatively rotates with respect to the screw shaft and a res...
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WO/2024/077321A1 |
The invention relates to an electromechanical spindle drive (1) comprising: a housing (2); a rotation unit (4) having a spindle nut which can be made to rotate about an axis of rotation (R) by means of a motor (3); and a spindle (5) whic...
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WO/2024/076557A1 |
A technique facilitates application of increased force in various well applications while limiting the overall time period of the operation by automatically utilizing two modes of operation. In some well applications, the technique autom...
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WO/2024/075486A1 |
This mechanical component is made of steel that is subjected to quenching and tempering, the mechanical component comprising a carbonitrided layer on the surface thereof. The steel contains 0.13-0.58 mass% inclusive of C, 0.15-0.35 mass%...
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WO/2024/075488A1 |
Provided is a ball screw device comprising: a ball screw shaft having thread grooves provided in the outer circumferential surface thereof; a nut member which has thread grooves provided in the inner circumferential surface thereof and i...
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WO/2024/074316A1 |
A linear actuator (1) for height adjustable columns comprising a threaded spindle (2) with a longitudinal extension along a longitudinal axis, the spindle being adapted to be rotated by a driving shaft (3), characterized in that the spin...
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WO/2024/075799A1 |
A ball screw (10) comprises: a screw shaft (20) formed with a screw shaft-side raceway groove (21); a nut (30) formed with a nut-side raceway groove (31) and having a through-hole (32) communicating an outer peripheral surface (33) with ...
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WO/2024/069080A1 |
The invention relates to a system for transmitting commands to N hydraulic servo-actuators, N being an integer greater than or equal to 2, the system comprising: N mechanical systems, each mechanical system comprising: - a rotary electri...
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WO/2024/062249A1 |
A linear actuator (100) comprising a stroke axis (102), an actuator rod (104)extending along the stroke axis. The actuator rod comprises: an actuator rod outer surface (110), and a first screw thread (108) on a portion of the actuator ro...
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WO/2024/063032A1 |
Provided is a ball screw capable of connecting a circulation trajectory of a three-dimensionally formed circulation groove to a spiral trajectory such that the tangential direction is substantially continuous. A ball screw (1) comprises ...
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WO/2024/056167A1 |
The present invention relates to a gearbox for an antenna (100), an antenna (10) including said gearbox as well as a mobile communication base station (1) including said antenna. The gearbox (100) comprising at least two phase shift adju...
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WO/2024/057993A1 |
This ball screw has: a screw shaft having an outer circumferential screw groove formed therein; a nut having an inner circumferential screw groove formed therein; a plurality of balls accommodated in a rolling route formed by the outer c...
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WO/2024/055693A1 |
A transmission assembly of a lifting column, which relates to the field of linear actuators, comprises a driving device (100), a first sleeve (110), and a second sleeve (120) arranged in the first sleeve (110), wherein a first lead screw...
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WO/2024/056924A1 |
The invention relates to a device formed by a spindle (11) connected to a nut (13) and to one or more servo motors (40) such that the transmitted torque will be the sum of the separate torques of the servo motors, the device comprising a...
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WO/2024/051882A1 |
The invention relates to a roller screw drive with a nut (1), at the inner circumference of which a nut thread (2) is formed wound about an axis, and with a spindle (3) that engages in the nut (1) and which has a spindle thread (4) and s...
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WO/2024/053415A1 |
A nut according to the present disclosure comprises: a cylindrical nut body through which a screw shaft is inserted; a plurality of inner track surfaces and a plurality of S-shaped groove surfaces recessed radially outward from the inner...
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WO/2024/052530A1 |
The present invention relates to a gear-shifting device (20) for a mobility vehicle (1), comprising a selection shaft (40) in which a shuttle (41), an endless screw (21), and a guide tube (45) in which the endless screw (21) is positione...
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WO/2024/048362A1 |
This ball screw device prevents contact of a ball rolling within an unloaded passage with a corner section of a nut member exposed to the interior of the passage, and enables favorable rolling conditions of the ball to be maintained over...
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WO/2024/041113A1 |
Provided in the present invention is a universal swinging-type recirculating ball nut mechanism of an electric power steering machine. The mechanism comprises a recirculating ball nut, a ball bearing and a belt pulley; one side of the ou...
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WO/2024/041115A1 |
The present application relates to a transmission mechanism (32), a driving device (30) and an electronic apparatus (100). The transmission mechanism (32) comprises a lead screw (321), a transmission member (322) and a guide assembly (32...
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WO/2024/042461A1 |
An actuator for a wheel suspension for a vehicle, comprising a housing comprising a housing wall; an electric motor configured for rotating the screw around its axis causing a screw nut to linearly move along a screw; a piston rod assemb...
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WO/2024/041687A1 |
The invention relates to an electromechanical actuator (1), comprising a screw drive (2, 8) in the form of a planetary rolling screw drive (2, 8), wherein the planetary rolling screw drive (2, 8) provided is a true-pitch screw drive havi...
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WO/2024/039423A1 |
A linear actuation system includes a pin pivotably coupled to an output rod of a linear motion actuator and a rotatable output shaft that includes a bushing therein. The pin can be configured to slide in and out of the bushing in respons...
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WO/2024/039513A1 |
A tube isolator connects a top mount (220) to an upper housing (224) and is configured to transfer forces between the top mount (220) and the upper housing (224). The tube isolator has an outer ring that is connected to the top mount, an...
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WO/2024/035582A1 |
A planetary roller screw drive for a steering actuator includes a screw spindle and a planetary roller assembly arranged thereon. The planetary roller assembly includes a roller body, planetary rollers arranged between the screw spindle ...
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WO/2024/018059A1 |
A height-adjustable supporting mechanism (10) for a supporting unit (11) of a supporting system (12) for supporting and securing a radially acting heavy load (13), in particular a tower of a wind power plant, wherein the supporting mecha...
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WO/2024/008146A1 |
A reciprocating transmission mechanism (10), comprising a transmission shaft (100), a reciprocating sleeve (200), limiting bodies (300), a balancing sleeve (400) and balancing bodies (500). The reciprocating sleeve and the balancing slee...
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WO/2024/008149A1 |
A reciprocating transmission mechanism (10), which comprises a transmission shaft (100), a reciprocating sleeve (200) and limiting bodies (300). When the transmission shaft rotates about its own axis, the limiting bodies are positioned o...
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WO/2024/008153A1 |
A reciprocating transmission assembly (10), comprising a rotating sleeve (100), a reciprocating shaft (200), and limiting bodies (300). One of the limiting bodies and a reciprocating guide rail (400) is arranged on the inner wall of the ...
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WO/2024/008661A1 |
The invention relates to a control valve, in particular an electrically controllable control valve, comprising: a housing in which a valve closing element is provided which closes a valve seat in a closed position and is raised from the ...
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WO/2024/002771A1 |
The invention relates to a screw transmission drive (1), in particular for the reticle stage (100) of a device (200) for lithography applications, comprising a leadscrew (4), which has a power transmission thread and a leadscrew nut (5) ...
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WO/2023/247850A1 |
The invention relates to an actuator (1) comprising: - a frame (20); - a screw (2)/nut (4) assembly comprising a nut (4) which engages with a screw (2) extending along a longitudinal axis (Ox); - a motor (3) arranged to rotate the screw ...
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WO/2023/247907A1 |
The invention relates to a pitch-change mechanism (70) which comprises a frame (72), a moving part (102) which can be translated along a longitudinal axis (X), and a locking device (160). The locking device (160) comprises a support memb...
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WO/2023/248319A1 |
An actuator (101) comprises: a rotor (22) which is rotatably supported on the inner side of a stator (21) and in which a female screw (22b) is formed in the inner peripheral surface of a center hole; a shaft (40) in which a male screw (4...
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WO/2023/247906A1 |
The invention relates to a pitch change mechanism (70) comprising a frame (72), an actuating cylinder (74) having a moving part (102) capable of translating relative to the frame (72), and a linkage system (78) connecting the moving part...
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WO/2023/243242A1 |
The present invention addresses the problem of manufacturing a small stage using a linear guide. A linear guide (1) according to the present invention includes: a single rail (3); a single block (4) that is movable relative to the rail (...
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WO/2023/243457A1 |
This hydraulic circuit control device comprises: a drive motor; a drive-side cylinder including a drive-side fluid chamber, and a drive-side piston moved by the drive motor; a driven-side cylinder including a driven-side fluid chamber, a...
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WO/2023/239012A1 |
The present invention relates to a transmission for an electric vehicle, which is a transmission capable of forward driving, including a first-stage forward mode in which power from a drive motor is transmitted to wheels via a sun gear, ...
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