Gears and gear combinations
    41.
    发明授权

    公开(公告)号:US10767744B2

    公开(公告)日:2020-09-08

    申请号:US16313718

    申请日:2017-06-30

    发明人: Roderick Kleiss

    IPC分类号: F16H55/16 F16H55/06 F16H55/18

    摘要: This anti-backlash gear includes a gear wheel and gear teeth. Each gear tooth comprises first and second flanks, a top face and a bottom face, wherein for each gear tooth each flank extends from the top face to the bottom face, wherein the gear teeth comprise a polymeric material which comprises a repeat unit of form I wherein t1, and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2. For each gear tooth, at least one of said flanks comprises two or more surfaces arranged to form a single protrusion extending along the at least one said flank such that a tooth thickness of each gear tooth varies between the top face and the bottom face of said gear tooth in a direction parallel to an axis of rotation of the gearwheel in operation. In use, the single protrusion is elastically deformable so as to absorb backlash.

    Resin gear, injection molding method for resin gear, resin-tooth-provided belt pulley, and resin rotator

    公开(公告)号:US10576673B2

    公开(公告)日:2020-03-03

    申请号:US16086527

    申请日:2017-02-22

    摘要: A resin gear includes a web with a side surface on which a first annular rib and a second annular rib are formed to be concentric with a boss. The web has an inner web portion coupling the first annular rib to the second annular rib, and an outer web portion coupling the second annular rib to a rim. The inner web portion is formed to have a thickness gradually reduced from one intersection point toward another intersection point, the intersection points being intersection points of a virtual radial direction line passing through a center of the boss with the second annular rib. The first annular rib has a side surface on which only one gate mark of an injection molding is formed at a position on a radially outer side with respect to a first tooth portion and a position biased to the other intersection point on the virtual radial direction line.

    POLYMERIC GEAR
    45.
    发明申请
    POLYMERIC GEAR 审中-公开

    公开(公告)号:US20200063848A1

    公开(公告)日:2020-02-27

    申请号:US16108160

    申请日:2018-08-22

    摘要: A transmission includes an input drive shaft, a drive gear, an idler gear, and a driven gear. The drive gear is rotationally fixed to the input drive shaft which, in turn, may but not necessarily, be powered by an engine. The idler gear may include a second set of gear teeth mounted to a bearing wherein the second set of gear teeth are formed from polymeric material. The second set of gear teeth for the idler gear may be in meshing engagement with the first set of gear teeth. The driven gear may include a third set of gear teeth in meshing engagement with the second set of gear teeth. The driven gear may be rotationally fixed to a pump shaft for a transmission pump. The input drive shaft, the drive gear, the idler gear, and the driven gear are configured to power a transmission pump.

    HYBRID GEAR CONSTRUCTION
    46.
    发明申请

    公开(公告)号:US20200025279A1

    公开(公告)日:2020-01-23

    申请号:US16514213

    申请日:2019-07-17

    摘要: A hybrid gear includes a first portion having a plurality of first engagement features formed from a first material and having a first stiffness and a second portion having a plurality of second engagement features in intermeshing arrangement with the plurality of first engagement features. The plurality of second engagement features is formed from a second material distinct from the first material and having a second stiffness. The first stiffness of the plurality of first engagement features is within 20% of the second stiffness of the plurality of second engagement features.

    COMPOSITE METAL FLEXPLATE
    47.
    发明申请

    公开(公告)号:US20200016688A1

    公开(公告)日:2020-01-16

    申请号:US16032880

    申请日:2018-07-11

    摘要: A composite metal flexplate is disclosed that includes an aluminum center plate and a steel ring gear joined to the aluminum center plate by a solid-state joint. The solid-state joint that joins together the aluminum center plate and the steel ring gear may be formed by friction welding. During the friction welding process, a surface of an annular body of the steel ring gear is preheated, followed by bringing the preheated surface of the annular body into contact with a surface of a periphery of a circular body of the aluminum center plate. The two contacting surfaces are then caused to experience relative rotational contacting movement, which generates frictional heat therebetween and softens adjacent regions of the steel ring gear and the aluminum center plate. Once this occurs, an applied force is administered to compress and forge the contacting surfaces together, thereby establishing the solid-state joint.

    Robot and gear device
    49.
    发明授权

    公开(公告)号:US10451174B2

    公开(公告)日:2019-10-22

    申请号:US15658798

    申请日:2017-07-25

    发明人: Masaaki Sakata

    摘要: A robot includes a first member, a second member provided to be capable of turning with respect to the first member, and a gear device configured to transmit a driving force from one side to the other side of the first member and the second member. The gear device includes internal teeth and external teeth provided halfway in a transmission path of the driving force and configured to mesh with each other and lubricant disposed between the internal teeth and the external teeth. An average grain size of a constituent material of the external teeth is smaller than an average grain size of a constituent material of the internal teeth.

    Gear Pair Comprising a Gear with a Surface Structure, Transmission Comprising Gear Pair, and Method for Producing a Gear

    公开(公告)号:US20190264793A1

    公开(公告)日:2019-08-29

    申请号:US16411681

    申请日:2019-05-14

    摘要: A gear pair including at least one first gear with a microstructure and at least one additional gear is provided. The first gear has first teeth with first tooth flanks and the additional gear has additional teeth with additional tooth flanks. In order to transfer power from the first gear to the additional gear, a first tooth flank contacts an additional tooth flank on an imaginary tangential plane which touches both tooth flanks in a contact point. The addition of the speeds of the two tooth flanks in the contact point on the tangential plane produces a sum speed. The microstructure is designed as a depression on the first tooth flank and runs at least partly along a structure line on the first tooth flank, and the structure line is touched by a structure tangent in the contact point. The structure tangent lies on the tangential plane.