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Leaf paper bundling apparatus

  • US 5,126,002 A
  • Filed: 09/25/1990
  • Issued: 06/30/1992
  • Est. Priority Date: 09/29/1989
  • Status: Expired due to Term
First Claim
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1. A leaf paper bundling apparatus for winding a tape around a periphery of a stack f leaf papers having long and short edges, comprising:

  • a stacking means for stacking a predetermined number of leaf papers in an upright position in a direction parallel to the short edges of the leaf papers and aligning both the long and short edges of the leaf papers;

    a holding and transferring means for holding and transferring the stacked leaf papers in the upright position from said stacking means to a bundling position defined immediately below said stacking means, said holding and transferring means including left and right holding fingers for holding the stacked leaf papers and maintaining the upright position of the stacked leaf papers;

    a clamping means having a pair of clamping members for clamping the stacked leaf papers from both sides thereof at a position on the stacked leaf papers separated from the one position whereat the leaf papers are held by said left and right holding fingers of said holding and transferring means;

    a tape supply means for supplying tape to be wound around the stacked leaf papers, said tape supply means being provided adjacent one of said clamping members, and said tape supply means having tape tightening means for applying tension to the tape after the tape has been wound around the stacked leaf papers;

    a tape winding means for winding the tape from said tape supply means around the periphery of the stacked leaf papers at a position on the stacked leaf papers other than the one position whereat the leaf papers are held by said left and right holding fingers of said holding and transferring means, said tape winding means including a fixed holding member and a movable holding member for holding an end of the tape supplied by said tape supply means and winding the tape by moving to advance, describe an arc path at said bundling position around the stacked leaf papers, release the tape and retreat from said bundling position in a direction parallel to the long edges of the leaf papers;

    cutting means for cutting the tape after the tape has been wound around the stacked leaf papers by said tape winding means and tension has been applied to the tape by said tape tightening means, said cutting means being provided adjacent said tape supply means; and

    a tape thermal bonding means for adhering the cut ends of the tape together, said tape thermal bonding means including a thermal bonding pad moving to the cut ends from a predetermined position and retreating to said predetermined position after thermal bonding has been carried out.

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