Method and apparatus for forming a fibrous cylindrical element
    1.
    发明授权
    Method and apparatus for forming a fibrous cylindrical element 失效
    用于形成纤维状圆柱形元件的方法和装置

    公开(公告)号:US4146188A

    公开(公告)日:1979-03-27

    申请号:US847160

    申请日:1977-10-31

    IPC分类号: B65H18/22 B65H17/14

    摘要: Apparatus for forming a cylindrical element from a fibrous web, the element having a predetermined density characteristic radially thereof, comprises an endless belt, guide means about which said belt is entrained and which are arranged to define a loop in said belt to which loop the fibrous web is fed, said guide means being arranged so that, in use, said loop extends around substantially the entire circumference of the element forming in said loop, means for driving said belt so as to thereby cause the fibrous web to be fed into said loop and there to roll up on itself, and means for progressively increasing the diameter of said loop, said loop diameter increasing means including a control member about which said belt is entrained and which is movable to vary the dimensions of said loop, and means for moving said control member so as to increase the diameter of said loop at a rate which is a function of the linear speed of the belt and the length and weight per unit length of the fibrous web so as to obtain the predetermined radial density characteristic of the cylindrical element to be formed in said loop.

    摘要翻译: 用于从纤维网形成圆柱形元件的装置,具有其径向预定密度特征的元件包括环形带,引导装置,所述带夹在所述导向装置上,并且被布置成在所述带中限定环,所述环的纤维 所述引导装置被布置成使得在使用中,所述环围绕在所述环中形成的元件的基本上整个圆周延伸,用于驱动所述带的装置,从而使得纤维幅被馈送到所述环中 并且在其上卷起,并且用于逐渐增加所述环的直径的装置,所述环直径增加装置包括控制构件,所述带夹在所述控制构件上并且可移动以改变所述环的尺寸,以及用于移动的装置 所述控制构件以增加所述环的直径的速率来增加所述环的直径,该速率是所述带的线速度和纤维的每单位长度的长度和重量的函数 以获得要在所述环中形成的圆柱形元件的预定径向密度特性。

    Extendable and retractable leg rest
    2.
    发明申请
    Extendable and retractable leg rest 有权
    可伸缩腿托

    公开(公告)号:US20050077701A1

    公开(公告)日:2005-04-14

    申请号:US10960864

    申请日:2004-10-07

    IPC分类号: A61G5/12 A47D1/02

    摘要: An extendable and retractable leg rest includes a first member which is mounted for rotation to a support. A second member supporting a footrest is coupled to the first member and slides relative to the first member as the first and second members rotate, extending away from the first member as the first and second members are rotated into a raised position and retracting toward the first member as the first and second members are rotated into a lowered position. Movement of the second member relative to the first member is driven by a third member coupled to the second member by a gear system.

    摘要翻译: 可伸缩的支腿包括第一构件,其被安装成用于旋转到支撑件。 支撑脚踏板的第二构件联接到第一构件并随着第一和第二构件旋转而相对于第一构件滑动,随着第一构件和第二构件旋转到升高位置并且朝向第一构件回缩 作为第一和第二构件的构件被旋转到降低位置。 第二构件相对于第一构件的移动由通过齿轮系联接到第二构件的第三构件驱动。

    Articulating leg rest for a wheelchair
    3.
    发明申请
    Articulating leg rest for a wheelchair 有权
    轮椅的腿部休息

    公开(公告)号:US20060086202A1

    公开(公告)日:2006-04-27

    申请号:US11252482

    申请日:2005-10-18

    IPC分类号: G05G1/18

    摘要: An articulating leg rest is provided having a first member pivotally connected to a base frame. The base frame may be either connected to or part of a wheelchair frame. A second member is telescopically received by the first member. A drive system includes a motor-driven lead screw. First and second housings each have internally threaded portions engaged with the lead screw. A link connects the first housing to the base frame. The second housing engages the second member. Rotation of the lead screw advances the first housing along the lead screw, moving the link and causing the first and second members to rotate relative to the base frame. Rotation of the lead screw also advances the second housing along the lead screw, causing the second housing to linearly translate the second member relative to the first member.

    摘要翻译: 提供了一种铰接腿托,其具有枢转地连接到基架的第一构件。 基座框架可以连接到轮椅框架的一部分或轮椅框架的一部分。 第二构件由第一构件可伸缩地接收。 驱动系统包括电动丝杠。 第一和第二壳体各自具有与导螺杆接合的内螺纹部分。 链路将第一壳体连接到基架。 第二个壳体与第二个构件接合。 导螺杆的旋转使第一壳体沿着导螺杆前进,使连杆移动并使第一和第二构件相对于基架旋转。 导螺杆的旋转还使得第二壳体沿着导螺杆前进,使得第二壳体相对于第一构件线性平移第二构件。