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Driving device

  • US 8,601,891 B2
  • Filed: 12/02/2011
  • Issued: 12/10/2013
  • Est. Priority Date: 12/03/2010
  • Status: Active Grant
First Claim
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1. A driving device comprising:

  • a housing tube connectable to one of a stationary base part and a movable structural component part;

    a protective tube connectable to the other of the stationary base part and the movable structural component part;

    a spindle drive by which the housing tube and protective tube are movable axially relative to one another, comprising;

    a threaded spindle; and

    a spindle nut arranged on the threaded spindle;

    a rotary drive that drives the spindle drive in rotation via an overload protection device, a rotationally rigid interconnection of the overload protection device configured to be canceled when a determined torque is exceeded;

    a sensor element arranged so as to be stationary with respect to the housing tube; and

    a magnetic ring having a plurality of north poles and south poles arranged to be rotationally movable near the sensor element, the magnetic ring cooperating with the sensor element,wherein the magnetic ring is arranged at a part of the overload protection device that is connected to the threaded spindle to be fixed with respect to rotation relative to the threaded spindle.

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