Patent ID: 6412607
Filing Date: 2002-07-02
Classification: F16D

Abstract:
A brake lining wear detection apparatus for detecting wear on brake linings in a friction brake which comprises:a lining member on which a brake lining is provided; a brake member that is pressed and braked by said brake lining when the brake is activated; a pressing member for pressing said brake lining onto said brake member when the brake is activated; means for generating pressing force for causing said pressing member to exert a pressing force; a transmission member that screws onto said pressing member between said pressing member and said means for generating pressing force and is disposed rotatably about this screw shaft, and which transmits the pressing force generated by said means for generating pressing force to said pressing member in the direction of said screw shaft; and an adjustment mechanism which rotates said transmission member about a screw axis to cause the pressing member to project according to the wear on said brake lining, and which automatically adjusts the space between said brake lining and said brake member when the brake is not activated so as to become a predetermined, prescribed magnitude; said detection apparatus comprising: rotation detecting means for detecting the state of rotation of said transmission member or of a rotating member which rotates said transmission member; means for storing a number of rotations that counts and stores the number of rotations of said transmission member or said rotating member from said state of rotation detected by said rotation detecting means; and warning means for performing a warning operation when it is determined that the number of rotations stored in said means for storing a number of rotations has exceeded a predetermined and stored limit number of rotations.