Thread drive with monitored safety nut
OwnerMichael Klein, Rudolf Schlereth +2inventors
InventorsMichael Klein, Rudolf Schlereth, Roland Greubel, Werner Blaurock
Life of this patent
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Abstract
A thread drive has a threaded spindle, a load-bearing nut that is in screwing engagement with the threaded spindle, a safety nut connected to the load-bearing nut in a manner fixed against relative rotation, which is likewise in screwing engagement with the threaded spindle, the safety nut having at least one contact portion which has no contact with the threaded spindle in a first operating state of the thread drive and has contact with the threaded spindle in a second operating mode of the thread drive, so that in the first operating state there is no electrically conductive connection between the at least one contact portion of the safety nut and the threaded spindle.
Claims11
A thread drive, comprising a threaded spindle;
- a load-bearing nut that is in screwing engagement with said threaded spindle;
- a safety nut connected to said load-bearing nut in a manner fixed against relative rotation, which is likewise in screwing engagement with said threaded spindle, said safety nut having at least one contact portion which has no contact with said threaded spindle in a first operating state of the thread drive and has contact with said threaded spindle in a second operating mode of the thread drive, so that in said first operating state there is no electrically conductive connection between said at least one contact portion of said safety nut and said threaded spindle.
Dependencies are inferred from the claim text.