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3477 条记录 (耗时 0.027 秒)

    Telescopic apparatus
    32.
    发明授权
    Telescopic apparatus 有权

    公开(公告)号：US11835115B1

    公开(公告)日：2023-12-05

    申请号：US18073027

    申请日：2022-12-01

    申请人： CORETECH Co., Ltd.

    发明人： Hiromichi Saito

    IPC分类号： F16H25/20

    CPC分类号： F16H25/20 ,  F16H25/2056 ,  F16H2025/2062

    摘要： A telescopic apparatus is provided which can cause three or more cylindrical members to extend and contract smoothly without use of pneumatic pressure and hydraulic pressure.
    A telescopic apparatus includes: a first to a third cylindrical member that are nested; screw shafts supported rotatably and respectively by the first and second cylindrical members; nuts mounted respectively on the second and third cylindrical members to be threadedly engaged with the screw shafts of the first and second cylindrical members; and a transmission configured to transmit the rotation of the screw shaft of the first cylindrical member to the screw shaft of the second cylindrical member and to be movable in an axial direction relative to the screw shaft of the first cylindrical member. The screw shafts of the first and second cylindrical members rotate at one time to cause the first to the third cylindrical member to extend and contract.

    Preload detectable screw device
    33.
    发明授权
    Preload detectable screw device 有权

    公开(公告)号：US11821497B2

    公开(公告)日：2023-11-21

    申请号：US17604725

    申请日：2020-03-17

    申请人： THK CO., LTD.

    发明人： Yuji Kubota ,  Yoshinobu Moriyuki

    IPC分类号： F16H25/20 ,  F16H25/22 ,  F16H25/24

    CPC分类号： F16H25/2214 ,  F16H25/24

    摘要： A preload detectable screw device is provided which can detect preload with accuracy and can reduce the influence of generated heat on the output of a sensor. A screw device (1) includes a screw shaft (2), a nut member (3), a plurality of rolling elements (7, 8), at least one axial strain sensor (24) (B, D) that is attached to a surface of the nut member (3) and detects strain in an axial direction on the nut member (3), and at least one circumferential strain sensor (24) (A, C) that is attached to the surface of the nut member (3) and detects strain in a circumferential direction on the nut member (3). Preload of the screw device (1) is detected on the basis of outputs of the axial strain sensor (24) (B, D) and the circumferential strain sensor (24) (A, C).

    Actuator failure detection and scissor lift load sensing systems and methods
    34.
    发明授权
    Actuator failure detection and scissor lift load sensing systems and methods 有权

    公开(公告)号：US11820631B2

    公开(公告)日：2023-11-21

    申请号：US17328885

    申请日：2021-05-24

    申请人： Oshkosh Corporation

    发明人： David Lombardo ,  Eko Prasetiawan ,  Louis Bafile

    IPC分类号： B66F17/00 ,  B66F11/04 ,  F16H25/24 ,  F16H25/20 ,  F16H25/22

    CPC分类号： B66F17/006 ,  B66F11/042 ,  F16H25/2204 ,  F16H25/2472 ,  F16H2025/2081

    摘要： A lift device comprises a base, a retractable lift mechanism, a work platform, a linear actuator, and a lift controller. The retractable lift mechanism has a first end coupled to the base and is moveable between an extended position and a retracted position. The work platform is coupled to and supported by a second end of the retractable lift mechanism. The linear actuator is configured to selectively move the retractable lift mechanism between the extended position and the retracted position. The linear actuator comprises a central screw rod, an electric motor configured to provide rotational actuation to the central screw rod, and a nut assembly configured to translate the rotational actuation of the central screw rod into linear motion. The lift controller is configured to receive a lift command from an operator, monitor at least one lift characteristic associated with the linear actuator, and selectively inhibit the lift command.

    Steering column actuator assembly travel stop
    36.
    发明授权
    Steering column actuator assembly travel stop 有权

    公开(公告)号：US11794802B1

    公开(公告)日：2023-10-24

    申请号：US17746442

    申请日：2022-05-17

    申请人： Steering Solutions IP Holding Corporation

    发明人： Melvin L. Tinnin ,  Joen C. Bodtker

    IPC分类号： B62D1/18 ,  B62D1/181 ,  F16H25/22 ,  F16H25/20 ,  B62D1/187

    CPC分类号： B62D1/181 ,  B62D1/187 ,  F16H25/2015 ,  F16H25/2209

    摘要： An adjustment actuator assembly for a vehicle steering system includes a leadscrew having a threaded outer surface and at least one pocket recessed radially inwardly from an outer diameter of the threaded outer surface. The adjustment actuator assembly also includes a nut having a threaded inner surface engaged with the threaded outer surface of the leadscrew, the nut axially moveable along the leadscrew during rotation of the leadscrew. The adjustment actuator assembly further includes a travel stop limiter operatively coupled to the nut, the travel stop limiter having a leg extending through an opening of the nut and spring biased into contact with the threaded outer surface of the leadscrew and moveable into the pocket of the leadscrew to limit axial translation of the nut.

    MULTIPLE LOAD PATH ACTUATOR WITH FAULT DETECTION
    38.
    发明公开
    MULTIPLE LOAD PATH ACTUATOR WITH FAULT DETECTION 审中-公开

    公开(公告)号：US20230332676A1

    公开(公告)日：2023-10-19

    申请号：US18028732

    申请日：2021-10-05

    申请人： Moog Inc.

    发明人： Seth E. Gitnes

    IPC分类号： F16H25/20 ,  B64C13/38

    CPC分类号： F16H25/205 ,  B64C13/38 ,  F16H2025/2081 ,  F16H2025/2053

    摘要： An actuator comprising first and second motors, first and second drive linkages, and a pivot mount configured to pivot about a pivot axis, the pivot mount connected to the first and second drive linkages at first and second mount connections offset first and second offset distances from the pivot axis, the motors and first and second drive linkages configured to provide first and second load paths between a drive housing and the pivot mount so that in a first operation state the pivot mount is in a force-balanced orientation about the pivot axis, and a proximity detector positioned to detect when the pivot mount rotates about the pivot axis above a threshold out of the force-balanced orientation, wherein a force imbalance on the pivot mount caused by a fault in one of the first or second drive linkages above a threshold is detected by the proximity detector.

    ROTATION SUPPORT STRUCTURE FOR ELECTRIC CYLINDER
    39.
    发明公开
    ROTATION SUPPORT STRUCTURE FOR ELECTRIC CYLINDER 审中-公开

    公开(公告)号：US20230287966A1

    公开(公告)日：2023-09-14

    申请号：US18180603

    申请日：2023-03-08

    申请人： AISIN CORPORATION

    发明人： Ken KATO

    IPC分类号： F16H25/20

    CPC分类号： F16H25/20 ,  F16H2025/2031 ,  F16H2025/2075 ,  F16H2025/2087

    摘要： A rotation support structure for an electric cylinder includes a motor attached to a housing and including an output shaft; and a speed reduction mechanism connected to the output shaft. The speed reduction mechanism includes a gear unit including a first gear and a shaft support portion and has an outer member facing an inner surface of the housing and a ball, and an annular second gear fixed to the housing and meshing with the first gear, one side end portion of the outer member faces the inner surface of the housing or a spacer attached to the housing, and the other side end portion faces the second gear. A gap is formed between the outer member and the second gear, and between the outer member and at least either the housing or the spacer. A gap is formed between the outer member and the inner surface of the housing.

    Drive device
    40.
    发明授权
    Drive device 有权

    公开(公告)号：US11754156B2

    公开(公告)日：2023-09-12

    申请号：US17287806

    申请日：2019-10-23

    申请人： HI-LEX CORPORATION

    发明人： Hiroyuki Inagaki

    IPC分类号： F16H25/24 ,  F16H25/20 ,  E05F15/622

    CPC分类号： F16H25/2021 ,  F16H25/24 ,  E05F15/622

    摘要： A drive device comprises a housing, a drive portion, a spindle member to rotate by driving of the drive portion, a nut member screwed with the spindle member); a moving member coupled to the nut member, and a rotation regulating portion which suppresses rotation of the nut member to move the nut member) in an axis X direction of the spindle member, wherein the moving member has a fragile portion to be broken by a predetermined force being weaker than a force required to break the nut member, and the fragile portion is configured that a fracture portion with which the nut member is pressable by the moving member toward the drive portion is formable when the fragile portion is broken.