Motion guide apparatus
    1.
    发明授权

    公开(公告)号:US12031576B2

    公开(公告)日:2024-07-09

    申请号:US17925496

    申请日:2021-03-23

    申请人: THK CO., LTD.

    IPC分类号: F16C29/06 F16C19/50

    摘要: A motion guide apparatus is provided which can prevent a ball from contacting an edge of a ball rolling groove of a track member when the ball transfers from a rolling surface of the inner peripheral side of a turn-around path (an inner peripheral-side component) to the track member. The motion guide apparatus includes: a track member (2) including a ball rolling groove (2a); and a moving member assembled to the track member (2) in such a manner as to be movable relative to the track member (2). The moving member includes: a moving member body having a loaded ball rolling groove facing the ball rolling groove (2a), and a return path substantially parallel to the loaded ball rolling groove; and a lid member having a turn-around path. In cross section of the motion guide apparatus perpendicular to a length direction of the track member (2), letting the radius of curvature of the ball rolling groove (2a) be R, and letting the distance from a ball center (O) to a rolling surface (21) of the inner peripheral side of the turn-around path (an inner peripheral-side component (9a)) be r, R>r is set.

    Cradle bearing and cradle bearing support

    公开(公告)号:US11761435B2

    公开(公告)日:2023-09-19

    申请号:US17555586

    申请日:2021-12-20

    摘要: A cradle bearing for supporting a swashplate of a variable hydraulic axial piston. The cradle bearing is of an angular ball bearing type or comprises, with respect to the bearing axis, a tapered inner race and/or a tapered outer race. A swashplate for a variable hydraulic axial piston unit including a first and a second cradle bearing zone spaced to each other in axial direction of a swashplate tilt axis, suitable for supporting the swashplate in a housing of a variable hydraulic axial piston unit, wherein the first cradle bearing zone is inclined with respect to the swashplate tilt axis. A variable hydraulic axial piston unit of the swashplate type including a swashplate which is supported rotatable in the housing of the variable hydraulic axial piston unit at a first bearing zone by a tapered bearing and at a second bearing zone by regular cylindrical cradle bearing or a journal bearing whose axis is aligned with the swashplate tilt axis.

    Support element and a method for supporting an elongated beam, and a rotary platform

    公开(公告)号:US11700834B2

    公开(公告)日:2023-07-18

    申请号:US16646376

    申请日:2018-09-12

    申请人: DAIRYMASTER

    摘要: A rotary milking platform (1) comprises a platform (3) having a circular carrier beam (7) secured to the underside of the platform (3). The carrier beam (7) is supported on a plurality of support elements (10), each of which comprise a freely rotatable roller (35) which is configured to rollably engage an under surface (38) of the carrier beam (7). Each support element (10) comprises an anchor plate (27) adjustably mounted on a corresponding ground engaging element (20) which is secured to the ground. A carrier plate (40) is carried on four guide bolts (50) extending upwardly from the anchor plate (27). Side members (41) extending downwardly from the carrier plate (40) rotatably carry the roller (35). Compression springs (59) acting between abutment washers (55) secured to the guide bolts (50) and the carrier plate (40) urge the carrier plate (40) against heads (53) of the guide bolts (50). The compression springs (59) accommodate downward and upward movement of the roller (35) in order to accommodate rising and falling of the under surface (38) of the beam (7). The compression springs (59) permit tilting movement of the roller (35) about a tilt axis (61) which extends in the direction of motion of the beam (7) in order to facilitate tilting of the roller (35) to follow any non-horizontality of the under surface (38) of the beam (7). The tilt axis is located just below a line of contact (67) of the roller (35) with the under surface (38) of the beam (7) to minimise lateral movement of the roller relative to the beam (7) as the roller (35) tilts about the tilt axis.

    Bearing and medical device
    6.
    发明授权

    公开(公告)号:US11525476B2

    公开(公告)日:2022-12-13

    申请号:US16800455

    申请日:2020-02-25

    发明人: Kosuke Nishio

    摘要: Provided are a bearing and a medical device in which a gap is secured between an inner ring and an outer ring, and the gap can be used as a flow path for a fluid or an object. A bearing having a plurality of rolling elements between an inner ring and an outer ring is provided with a raceway surface on which the rolling elements roll on the outer ring and receiving portions for rotatably accommodating the rolling elements at a position of the inner ring facing the raceway surface.

    Bearing arrangement
    7.
    发明授权

    公开(公告)号:US11441603B2

    公开(公告)日:2022-09-13

    申请号:US16793556

    申请日:2020-02-18

    摘要: A bearing arrangement having: a first element having an inner race and a first bearing surface; a second element, pivotable relative to the first element about a first axis, and having an outer race and a second bearing surface that cooperates with the first bearing surface to form a plain bearing. The bearing arrangement also includes a roller element disposed between the inner and outer races to form a rolling bearing. The inner and outer races are arcuate and subtend an angle of less than 360° about the first axis.

    ADJUSTABLE FORCE AND BALL BEARING ATTACHMENT MECHANISM FOR DOCKING CANNULAS TO SURGICAL ROBOTIC ARMS

    公开(公告)号:US20220096070A1

    公开(公告)日:2022-03-31

    申请号:US17039981

    申请日:2020-09-30

    发明人: Matthew Vargas

    摘要: An apparatus for attaching a cannula to a robotic surgical system, the apparatus comprising: a clamp assembly configured to attach a cannula to a robotic surgical system, the clamp assembly comprising an actuator coupled to a clamp to transition the clamp between an open position configured to receive the cannula and a closed position to attach the cannula to the robotic surgical system; and a lock out assembly coupled to the clamp assembly to control the transition of the clamp, the lock out assembly having a hook that is dimensioned to engage a bearing coupled to the actuator when the clamp is in the open position and disengage the bearing to allow the clamp to automatically transition to the closed position.

    Wheel and lift unit for radiation imaging modalities

    公开(公告)号:US11234659B2

    公开(公告)日:2022-02-01

    申请号:US16605182

    申请日:2017-04-14

    摘要: Among other things, a radiation system is provided. The radiation system includes a stationary unit and a rotating unit that rotates about an axis relative to the stationary unit. A radiation source and a detector array are mounted to the rotating unit. A wheel mechanism at least partially supports the rotating unit and facilitates rotation of the rotating unit relative to the stationary unit. A lift unit is supported by the stationary unit and engages the rotating unit. When the lift unit is in a lowered position, the rotating unit is supported by the wheel mechanism and the lift unit is spaced a distance apart from the rotating unit. When the lift unit is in a raised position, the rotating unit is supported by the lift unit and the rotating unit is spaced a second distance apart from the wheel mechanism.

    WHEEL AND LIFT UNIT FOR RADIATION IMAGING MODALITIES

    公开(公告)号:US20210137471A1

    公开(公告)日:2021-05-13

    申请号:US16605182

    申请日:2017-04-14

    摘要: Among other things, a radiation system is provided. The radiation system includes a stationary unit and a rotating unit that rotates about an axis relative to the stationary unit. A radiation source and a detector array are mounted to the rotating unit. A wheel mechanism at least partially supports the rotating unit and facilitates rotation of the rotating unit relative to the stationary unit. A lift unit is supported by the stationary unit and engages the rotating unit. When the lift unit is in a lowered position, the rotating unit is supported by the wheel mechanism and the lift unit is spaced a distance apart from the rotating unit. When the lift unit is in a raised position, the rotating unit is supported by the lift unit and the rotating unit is spaced a second distance apart from the wheel mechanism.