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    Machine key
    3.
    发明授权
    Machine key 失效
    机器钥匙

    公开(公告)号：US3877828A

    公开(公告)日：1975-04-15

    申请号：US38616673

    申请日：1973-08-06

    申请人： SMITH ROBERT F

    发明人： SMITH ROBERT F

    IPC分类号： F16D1/08

    CPC分类号： F16D1/0888 ,  Y10T403/585 ,  Y10T403/7024 ,  Y10T403/76

    摘要： A machine key having lower and upper cooperating wedges which are insertable into a keyway to lock two machine parts against relative movement or accidental separation. The lower wedge has a small end and the upper wedge has a large end which project beyond an end face of a machine part when the key is jammed in the keyway. Near these projecting ends, there are transverse holes in each of the wedges. A stop pin is inserted into a transverse hole in the lower wedge to limit inward movement of the wedge as the upper wedge is tapped home. The stop pin is transferred to a hole in the upper wedge to limit inward movement of that wedge when the lower wedge is tapped inwardly to release the key from the keyway.

    摘要翻译： 具有下和上配合楔的机械钥匙，其可插入键槽中以锁定两个机器部件以防止相对运动或意外分离。 下楔形件具有小端部，并且当钥匙卡在键槽中时，上楔形件具有超过机器部件的端面的大端部。 在这些突出端附近，每个楔形件中都有横向孔。 一个止动销被插入到下楔形物的横向孔中，以限制楔形件在向上移动时向内运动。 当下楔形件被向内抽吸时，止动销被转移到上楔形件中的孔中以限制该楔形件的向内运动，以从键槽释放钥匙。