Deflecting roller for sensing the distribution of stress along the roller

  • US 5,629,487 A
  • Filed: 03/19/1996
  • Issued: 05/13/1997
  • Est. Priority Date: 10/30/1992
  • Status: Expired due to Term
First Claim
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1. An apparatus for sensing distribution of stress along a deflecting roller while said roller deflects a strip of sheet material, including a substantially cylindrical roller body having a circumferential surface, said apparatus comprising:

  • a radially extending recess in said cylindrical roller body, having a top portion which opens to the circumferential surface of said cylindrical roller body, a bottom defined at the radially innermost point of the recess, and a side wall defined therebetween;

    a stress-responsive sensor disposed completely within said radially extending recess, the stress-responsive sensor being circumferentially surrounded by the side wall of said recess and spaced apart from said side wall;

    a sensor cover having a cross sectional shape corresponding to that of the radially extending recess, said sensor cover being arranged in the top portion of said recess, for only radial movement with respect to the circumferential surface of the cylindrical roller body, wherein said sensor cover is separated from the side wall of the recess by a gap which circumferentially surrounds the sensor cover and prevents interfering forces from being imparted against the sensor by the sensor cover.

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