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Work transport system including pallet transport apparatus

  • US 5,577,597 A
  • Filed: 02/06/1995
  • Issued: 11/26/1996
  • Est. Priority Date: 06/05/1992
  • Status: Expired due to Fees
First Claim
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1. A pallet handling device, providing a pallet delivery route and a pallet return route comprising:

  • a first lifting device located at a pallet receiving end of the pallet handling device, said first lifting device selectively moving upwardly and downwardly between a low position, a mid-position and a high position, pallets being transferred into the pallet delivery route and out of the pallet return route at said mid-position, said first lifting device receiving a pallet loaded with pieces of work at said mid-position along said pallet delivery route;

    an intermediate transport device, which has an upper level transport route and a lower level transport route, positioned adjacent said first lifting device and receiving a pallet loaded with pieces of work, transferred onto said intermediate transport device from said first lifting device when said first lifting device is positioned at its high position, at said upper level transport route along said pallet delivery route, said intermediate transport device being capable of temporarily storing a pallet loaded with pieces of work at said upper transfer level;

    a second lifting device positioned adjacent to said intermediate transport device, said second lifting device selectively moving upwardly and downwardly between lower and higher positions, said second lifting device receiving the pallet loaded with pieces of work at said higher position along said pallet delivery route from said intermediate transport device; and

    means for removing pieces of work from said pallet while on said second lifting device at said higher position, said second lifting device lowering the pallet after being emptied of said pieces of work along said pallet return route to said lower position, said intermediate transport device transporting the emptied pallet along the pallet return route to said first lifting device when the first lifting device is at said low position.

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