Patent ID: 8453529
Filing Date: 2013-06-04
Classification: B60N,F16H,Y10T

Abstract:
1. A gearing assembly for an adjustment device, comprising: a spindle nut on a threaded spindle; said threaded spindle extending along a central axial direction; a gearing housing operatively bounding said spindle nut; a first and a second bearing bush bounding said threaded spindle on opposing sides of said spindle nut and mounting said spindle nut inside said gearing housing; at least one of said bearing bushes further comprising: a planar bearing shoulder extending away from a tubular bearing segment of said at least one of said bearing bushes; at least one projection region extending unitarily outwardly from said planar bearing shoulder of said at least one of said bearing bushes along a plane perpendicular to said central axial direction during an initial assembly and beyond a diameter of said spindle nut; wherein said at least one of said bearing bushes is formed of a flexible material and is clamped during mounting under a prestressing between said gearing housing and said spindle nut; means for deflecting said at least one projection region away from said plane perpendicular to said central axial direction, thereby minimizing play in said mounted spindle nut; said means for deflecting includes at least one thickened portion being on one of said contact surface of said gearing housing and said projection at least one projection region of said at least one bearing bush; and said at least one thickened portion is located beyond a diameter boundary defined by a diameter of said spindle nut thereby enabling a prestressing between said gearing housing and said spindle nut by deflecting said at least one projection region of said at least one of said bearing bushes during said mounting of said spindle nut away from said contact surface.