| 摘要 |
<p>The anchor head has a base-plate, a clamping sleeve with retention wedges for the steel rods, and a ball joint between the base-plate and sleeve. The ball joint socket is provided in the base-plate. The socket is formed in a separate base-plate part which is easily adjustable in the tension direction of the base-plate. The clamping sleeve is provided with engagement elements for connection to a tensioning press acting upon the sleeve in tensioning direction. The socket part has pref. an external thread cooperating with an inner thread in the base-plate. The socket carries engagement surfaces for a spanner, such as axis-parallel bores round the socket periphery.</p> |
