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    • 6. 发明授权
    • Support assembly for overbed table
    • 支撑组件用于床垫
    • US4601246A
    • 1986-07-22
    • US607922
    • 1984-05-07
    • Frank M. Damico
    • Frank M. Damico
    • A47B9/08F16B7/14E04G25/08
    • F16B7/1409A47B9/083A47B23/046
    • A support assembly (2) is provided for an overbed table (4). A lower pedestal column (6) is mounted on a base (8), and an upper pedestal column (12) is telescopically slideable within the lower column, and supports a table (4). A wedge and roller clutch (14) at the bottom of the upper column includes: wedges (16, 18) fixed to the upper column and extending downwardly from the lower end (20) thereof and having opposing camming surfaces (22, 24); a retainer (26) mounted to a release rod (28) and moveable up and down toward and away from the bottom end of the upper column; and rollers (32, 34) loosely received in the retainer and forced laterally horizontally outwardly against the inner walls (36, 38) of the lower column by the camming surfaces of the wedges to stop downward movement of the upper column and support the table. Downward movement of the release rod and the retainer permits lateral inward movement of the rollers out of forced cammed engagement with the inner walls of the lower column, to permit downward movement of the upper column and table. A counterbalancing return spring (90) biases the retainer upwardly to reduce the effort needed to lift the table and to bias each of the rollers to a proper camming position to be cammed by the camming surfaces of the wedges to a latched condition to support the table. Disclosed features include positive break disengagement means and silencing means. Other features include simplicity of design and efficiency and economy of manufacture, including part tolerances.
    • 为叠层台(4)提供支撑组件(2)。 下基座柱(6)安装在基座(8)上,并且上基座柱(12)在下列可伸缩地滑动,并支撑台(4)。 在上列底部的楔形和滚柱离合器(14)包括:固定到上柱并从其下端(20)向下延伸并具有相对的凸轮表面(22,24)的楔形物(16,18); 安装到释放杆(28)并且可以朝向和远离上柱的底端上下移动的保持器(26) 和松动地容纳在保持器中的辊(32,34),并且通过楔的凸轮表面横向横向水平地向外压靠下列的内壁(36,38),以阻止上部塔的向下运动并支撑工作台。 释放杆和保持器的向下运动允许辊的侧向向内运动脱离与下柱的内壁的强制凸轮啮合,以允许上柱和工作台的向下运动。 平衡复位弹簧(90)将保持器向上偏压以减少提升工作台所需的力,并将每个辊偏置到适当的凸轮位置,以将楔形凸轮表面凸轮锁定到锁定状态以支撑工作台 。 公开的特征包括阳性断开分离装置和沉默装置。 其他功能包括设计简单,效率和制造经济性,包括零件公差。
    • 7. 发明授权
    • Telescoping post
    • 电话号码
    • US3883106A
    • 1975-05-13
    • US38220973
    • 1973-07-24
    • DOMINION BRIDGE CO LTD
    • SIMONSEN OLE FINN
    • E04G21/32E04G25/08
    • E04G25/08E04G21/3233
    • A telescoping post in which sliding post sections can be locked into fixed positions relative to one another by the operation of a locking device. The telescoping post is retained between a floor and ceiling by a compression force caused by the operation of the locking device. The locking device consists of an apertured plate through which one of the sections of the telescoping post extends, and a pair of pivoted levers interconnected to one another into a toggle arrangement and designed to tilt the apertured plate by raising one side of it relative to the lower portion of the telescoping post.
    • 伸缩柱,其中滑动柱部分可以通过锁定装置的操作而相对于彼此锁定在固定位置。 通过由锁定装置的操作引起的压缩力将伸缩柱保持在地板和天花板之间。 锁定装置包括有孔板,伸缩杆的一个部分延伸通过该孔板,以及一对彼此互相连接成肘节装置的枢转杆,并且设计成通过将多孔板的一侧抬高 伸缩柱的下部。