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424 条记录 (耗时 0.017 秒)

    Low friction pivot
    61.
    发明授权
    Low friction pivot 失效
    低摩擦枢轴

    公开(公告)号：US4438983A

    公开(公告)日：1984-03-27

    申请号：US295053

    申请日：1981-08-21

    申请人： Roland O. Davis

    发明人： Roland O. Davis

    IPC分类号： F16C11/00 ,  F16C11/12

    CPC分类号： F16C11/12 ,  Y10T403/54

    摘要： Low friction pivot 10 has base 12 and pivot pin 16. Bands 22, 24, and 26 are secured to the base 12 on one end and half-wrapped around the cylindrical pivot pin 16 on the other end. The slot 18 in pin 16 is for receiving and clamping that end of the bands. The torque caused by the bent bands is equal so that in any rotative position there is no net torque applied to pin 16.

    摘要翻译： 低摩擦枢轴10具有底座12和枢轴销16.轨道22,24和26在一端固定到底座12上，并在另一端上围绕圆柱形枢轴销16半包裹。 销16中的槽18用于接收和夹紧带的端部。 由弯曲带引起的扭矩相等，使得在任何旋转位置，施加到销16的净转矩都不会产生。

    Flexure-pivot assemblies and methods of making them
    62.
    发明授权
    Flexure-pivot assemblies and methods of making them 失效

    公开(公告)号：US4122689A

    公开(公告)日：1978-10-31

    申请号：US702827

    申请日：1976-07-06

    申请人： Geoffrey Beardmore

    发明人： Geoffrey Beardmore

    IPC分类号： F16C11/12 ,  F16D3/50 ,  F16F1/14 ,  F16F1/18 ,  G01C19/16 ,  G01C19/18 ,  B23P11/00

    CPC分类号： G01C19/16 ,  F16C11/12 ,  F16F1/14 ,  Y10T74/1293

    摘要： A flexure-pivot for providing resilient restraint that opposes relative angular displacement between two members involves two flat springs, that are held at one end between pairs of pins carried by one member and at the other end between pairs of pins carried by the other member, the flat springs each having two parallel rib portions that are linked at one end and are interlaced with one another. In one form of flexure-pivot the unlinked end of both the rib portions of each spring is secured between a pair of pins carried by one member and the linked end of both the rib portions of each spring is secured between a pair of pins carried by the other member. In another form of flexure-pivot the pairs of pins carried by one member are axially aligned with the pairs of pins carried by the other member, when there is no relative displacement between the members, and the unlinked end of one of the rib portions is secured to one of the pairs of pins carried by one member and the unlinked end of the other one of the rib portions is secured to the axially aligned pair of pins carried by the other member, so that there is a resilient interconnection between the axially aligned pairs of pins. In both forms of flexure-pivot, further pins are mounted with one or other of the members to limit relative angular displacement between the two members by engagement with pairs of pins mounted on an opposite member. Manufacture of both forms of flexure-pivot is initially the same and is carried out by inserting the ends of four pairs of pins in holes in one member, securing each end of the two flat springs between opposite pairs of pins, inserting the other ends of the four pairs of pins in holes in the other member, and brazing the assembly formed to secure the springs to the pins and the pins to the members. One form of flexure-pivot is subsequently formed by cutting two adjacent pairs of pins close to one member and the other two adjacent pairs of pins close to the other member. The other form of flexure-pivot however is formed by cutting through two adjacent pairs of pins at points between the rib portions and cutting through the other two adjacent pairs of pins at one point close to one member and at another point close to the other member.

    Rolling contact joint
    63.
    发明授权
    Rolling contact joint 失效
    滚动接头接头

    公开(公告)号：US3932045A

    公开(公告)日：1976-01-13

    申请号：US337868

    申请日：1973-03-05

    申请人： Benny M. Hillberry ,  Allen S. Hall, Jr.

    发明人： Benny M. Hillberry ,  Allen S. Hall, Jr.

    IPC分类号： A61F2/38 ,  F16C11/12 ,  F16M11/06 ,  F16C11/00 ,  F16C32/02 ,  F16D1/12 ,  F16D3/00

    CPC分类号： F16C11/12 ,  A61F2/3836 ,  A61F2/3877 ,  Y10T403/32622 ,  Y10T74/18568 ,  Y10T74/18848

    摘要： An apparatus is disclosed for a rolling contact joint that is particularly useful as a prosthetic joint such as a knee joint, as well as other applications requiring relatively movable sections having mechanical joints. The joint may take a variety of forms depending upon the particular situation, but in essence, includes at least two bodies that have surface portions in contact, with the bodies being movable relative to one another and constrained in this movement by the nature of the surfaces in contact and flexible straps positioned about and also in contact with the bodies. Where a basic configuration including a pair of cylinders is utilized, the flexible straps may be wrapped completely or partially around each of the cylinders to provide a joint having substantially no restraint of motion with very low friction due to the rolling contact between the contacting surfaces of the cylinders. In addition, such bodies may each have a pair of cylindrical surfaces of different diameter with respect to one another with the bodies in contact at one cylindrical surface and the flexible straps wrapped about the other of the cylindrical surfaces. If the cylindrical surfaces are concentric with respect to one another and have diameters of proper ratio, there will be no substantially resistance to the motion, and because of the rolling contact, friction will be very low. If the cylindrical surfaces are not concentric, however, then the flexible straps will be strained during rotation and a spring action will be provided in the device. Since the shape of the bodies and the positioning of the flexible straps determines the particular type of motion, various possible combinations have been described. In addition, a particular embodiment of a rolling contact joint is described for use as a prosthetic knee joint.

    摘要翻译： 公开了用于滚动接触接头的装置，其特别可用作诸如膝关节的假体关节，以及需要具有机械关节的相对可移动部分的其它应用。 关节可以根据特定情况采取各种形式，但实质上包括具有接触表面部分的至少两个主体，其中主体可相对于彼此移动并且通过表面的性质被限制在该运动中 接触和柔性带定位在主体周围并且也与主体接触。 在使用包括一对气缸的基本结构的情况下，可以将柔性带完全地或部分地围绕每个气缸包裹，以提供一种接头，其基本上没有约束的运动，具有非常低的摩擦力，这是由于接触表面之间的滚动接触 气瓶。 此外，这些主体可以各自具有一对相对于彼此不同直径的圆柱形表面，其中主体在一个圆柱形表面处接触并且柔性带缠绕在另一个圆柱形表面上。 如果圆柱形表面相对于彼此同心且具有适当比例的直径，则基本上不会阻碍运动，并且由于滚动接触，摩擦力将非常低。 然而，如果圆柱形表面不是同心的，那么柔性带在旋转过程中会变形，并且在该装置中将提供弹簧作用。 由于主体的形状和柔性带的定位确定了特定类型的运动，所以已经描述了各种可能的组合。 此外，描述了用作假膝关节的滚动接触关节的特定实施例。

    Pliable tape structure
    64.
    发明授权
    Pliable tape structure 失效
    可塑胶带结构

    公开(公告)号：US3751760A

    公开(公告)日：1973-08-14

    申请号：US3751760D

    申请日：1971-07-06

    申请人： WAKEMAN A

    发明人： WAKEMAN A

    IPC分类号： E05D1/00 ,  F16C11/12 ,  F16G3/10 ,  E05D7/00

    CPC分类号： F16G3/10 ,  E05D1/00 ,  F16C11/12 ,  Y10T16/5257

    摘要： A flexible longitudinally continuous tape construction is disclosed for use in joining mating edges of juxtaposed members, the tape having an X-like configuration transversely of its length to provide legs adapted to receive and be secured to the edges of the members to be joined. The tape is capable of serving as a pliable hinge to permit articulation of the joined members, or it may also serve simply as a binding for joining members intended to be fixed relative to each other. The tape construction combines longitudinally continuous marginal web portions or carriers, forming the extremities of the legs of the X, with longitudinally spaced strand or equivalent connector means running crosswise of and interconnecting pairs of marginal web portions. The connector means intersect and interlock forming the axis of the X-like configuration.

    摘要翻译： 公开了柔性纵向连续带结构，用于连接并置构件的配合边缘，该带具有横向于其长度的X形构造，以提供适于容纳和固定到待接合构件的边缘的腿。 该带能够用作柔性铰链以允许接合构件的铰接，或者也可以简单地用作用于连接要相对于彼此固定的构件的装订。 胶带结构组合纵向连续的边缘腹板部分或载体，形成X的腿部的末端，纵向隔开的股线或等效的连接器装置横跨并互连成对的边缘腹板部分。 连接器意味着相交并互锁形成X形构造的轴线。

    Two degree inverted flexure
    65.
    发明授权
    Two degree inverted flexure 失效
    两度倒角弯曲

    公开(公告)号：US3700291A

    公开(公告)日：1972-10-24

    申请号：US3700291D

    申请日：1971-10-29

    申请人： NASA

    发明人： HADLAND WAYNE O

    IPC分类号： F16C11/12 ,  F16C11/00

    CPC分类号： F16C11/12 ,  Y10T74/1293 ,  Y10T403/45 ,  Y10T403/54

    摘要： An inverted flexure is provided having two degrees of freedom which can be made from a single block of material by simple drilling and sawing operations. The flexural axis of either or both planes can be located either on or off the geometric center of the device.

    摘要翻译： 提供具有两个自由度的倒置挠曲，其可以通过简单的钻孔和锯切操作由单块材料制成。 一个或两个平面的弯曲轴可以位于设备的几何中心上或离开设备的几何中心。