Patent ID: 8508170
Filing Date: 2013-08-13
Classification: E05F,E05Y,Y10T

Abstract:
1. A driving device for a hatch in a vehicle, comprising: a housing tube configured to be connected to one of a stationary base part and a movable structural component part of the vehicle; a protective tube configured to be connected to the other of the stationary base part and the movable structural component part of the vehicle; a spindle drive comprising a threaded spindle and a spindle nut arranged on the threaded spindle configured to move the housing tube and the protective tube axially relative to one another; a rotary drive that drives the spindle drive in rotation comprising at least one electric motor; and a safety circuit configured to cause a braking effect on the rotary drive when the rotary drive is deactivated by short circuiting a winding of the rotary drive and when extraneous external forces are introduced into the driving device, wherein the safety circuit comprises: wherein the safety circuit works independently from the arrangement for sensing speed and rotational direction.