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Apparatus for lifting sheets from a stack

  • US 5,352,086 A
  • Filed: 08/20/1992
  • Issued: 10/04/1994
  • Est. Priority Date: 01/27/1990
  • Status: Expired due to Fees
First Claim
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1. An apparatus for lifting a sheet from a stack of sheets comprising:

  • a suction head frame;

    suction plate means for engaging the sheet;

    lifting means connected to said suction plate means so as to move said suction plate means in a vertical direction, said lifting means for moving said suction plate means between a first sheet-engaging position and a second sheet-releasing position, said suction plate means pivotally connected to said lifting means so as to align parallel to a surface of the stack;

    a setting member extending upwardly from said suction plate means to said suction head frame, said suction plate means pivotally connected to said setting member, said setting member linearly movable relative to said suction head frame; and

    a ramp member connected to said frame and positioned along a length of said setting member, said ramp member in cooperative relationship with said setting member, said setting member for causing said suction plate means to be positioned in parallel relation to said ramp member when said suction plate means is in said first position, said ramp member being stationary during a movement of said suction plate means between said first and second positions, said suction plate means comprising;

    a plate carrier;

    a suction plate affixed to a surface of said plate carrier, said plate carrier pivotally connected to said setting member, said suction plate having a surface for engaging the sheet; and

    a ball fitting attached to a surface of said plate carrier opposite said suction plate, said ball fitting being in a pivotal relationship with respect to said lifting means.

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