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165 条记录 (耗时 0.014 秒)

    Safety device
    71.
    发明授权
    Safety device 失效
    安全装置

    公开(公告)号：US5343976A

    公开(公告)日：1994-09-06

    申请号：US25461

    申请日：1993-03-03

    申请人： Meyer Ostrobrod

    发明人： Meyer Ostrobrod

    IPC分类号： A62B1/06 ,  A62B35/04 ,  B66D1/06

    CPC分类号： A62B35/0093 ,  A62B1/06

    摘要： A safety device for preventing injuries to a worker as a result of a fall includes a housing which is intended to be mounted at an elevated position where the worker is working and a cable which is adapted to be connected to a harness or belt worn by the worker. The housing includes a spring driven drum therein which normally keeps the cable wound thereon but which allows the same to be withdrawn slowly from the housing as more cable is needed by the worker. A centrifugally operated brake senses an initial quick withdrawal of the cable from the housing which results from the worker falling and stops further withdrawal therefrom to thereby prevent the worker from falling further. A manually operated crank mechanism carried by the housing allows a fellow worker to raise or lower the fallen worker to safety.

    摘要翻译： 用于防止由于跌倒而对工作人员造成伤害的安全装置包括旨在安装在工作人员正在工作的升高位置的壳体，以及适于连接到由所述工具所穿戴的线束或带 工人。 壳体包括弹簧驱动的滚筒，通常将电缆缠绕在其上，但是当工作者需要更多的电缆时，允许将电缆从壳体缓慢地取出。 离心式操作的制动器感测到电缆从壳体的初始快速撤出，这是由于工作人员下落而导致的，并且停止从其中进一步退出，从而防止工人进一步掉落。 由壳体承载的手动曲柄机构允许同事将堕落的工人升高或降低到安全。

    Dual-handled winch
    72.
    发明授权
    Dual-handled winch 失效
    双手绞车

    公开(公告)号：US4456227A

    公开(公告)日：1984-06-26

    申请号：US360837

    申请日：1982-03-23

    申请人： Leo J. Notenboom

    发明人： Leo J. Notenboom

    IPC分类号： B66D1/06 ,  B66D1/04 ,  B66D1/54

    CPC分类号： B66D1/06

    摘要： A dual-handled manual winch has a ratchet wheel meshing constantly with a pawl and which is automatically frictionally locked to a drive pinion for the winch drum when the drum starts to overrun. The drive pinion is threaded into a drive shaft on the ends of which the handles are mounted in diametrically opposite relation and on which the ratchet wheel and a pair of friction washers are sleeved to be engaged between the pinion and the ratchet wheel, and between the ratchet wheel and a stop collar on the shaft, responsive to axial movement of the drive pinion in the shaft toward the ratchet wheel.

    摘要翻译： 双手动绞车具有棘轮与棘爪啮合的棘轮，当滚筒开始超速时，该棘轮自动摩擦锁定到绞车鼓的驱动小齿轮。 驱动小齿轮螺纹连接到驱动轴上，手柄的端部沿直径相对的关系安装，棘轮和一对摩擦垫圈套在该驱动轴上，以便啮合在小齿轮和棘轮之间， 棘轮和轴上的止动环，响应于驱动小齿轮在轴中朝向棘轮的轴向运动。

    Overload-preventing handles
    73.
    发明授权
    Overload-preventing handles 失效
    过载预防手柄

    公开(公告)号：US3597995A

    公开(公告)日：1971-08-10

    申请号：US3597995D

    申请日：1969-12-29

    申请人： COLUMBUS MCKINNON CORP

    发明人： HAWKINS HAROLD V ,  DICK RALPH A

    IPC分类号： B66D1/06 ,  B66D3/14 ,  G05G1/04

    CPC分类号： B66D3/14 ,  B66D1/06 ,  Y10T74/20396

    摘要： A handle of the type adapted to prevent overloading of a mechanism with which it is operably associated, wherein a significant length of the handle is designed such that all points lengthwise thereof will simultaneously experience the same bending stress when a mechanism-operating load is applied to the handle, thereby resulting in a noticeably bending deformation of the length of handle before failure of the handle.