| 摘要 |
There is an anchor for securing a working line ( 54 ) to a structure. The anchor includes a sole plate ( 2 ) with an attachment ( 19 ) for the working line ( 54 ). There is at least one friction plate ( 5 ) and a connector strap ( 4 ). In use of the anchor the sole plate ( 2 ) and friction plate ( 5 ) are located against respective opposite sides of a rafter ( 3 ) of the structure and are linked together by the strap ( 4 ) in a manner such that the working line load on the sole plate ( 2 ) generates a clamping force between the sole plate ( 2 ) and the friction plate ( 5 ). This force resists movement of the anchor by gripping only the outside of the rafter ( 3 ).
|
