Tension jack used in the construction industry for tensioning a tension bar with an external thread comprises a tensioning connecting part adjustably held in a coupling sleeve by a finely threaded connection

摘要

Tension jack (3) for tensioning a tension bar (5) with an external thread (6) comprises a coupling sleeve (7), a tensioning nut (8) freely rotating in the coupling sleeve, and a tensioning connecting part (9) connected to the coupling sleeve. The tensioning connecting part is adjustably held in the coupling sleeve by a finely threaded connection. An independent claim is also included for a tensioning system comprising the above tension jack. Preferred Features: The tensioning connecting part has a forked first connecting end section (10) and a second connecting end section held in the coupling sleeve and provided with an external fine thread (15).