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Working line

  • US 5,160,011 A
  • Filed: 05/02/1990
  • Issued: 11/03/1992
  • Est. Priority Date: 05/13/1989
  • Status: Expired due to Fees
First Claim
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1. A working line having a plurality of work stations arranged in series and a free-flow transport conveyor means for transporting work pieces to said work stations, wherein:

  • an outer frame to support said conveyor means is formed extending over a plurality of said work stations;

    a jig base is provided in each of said work stations and is inserted into a framed space of said outer frame;

    a jig is provided on each jig base for supporting and positioning each of the work pieces on said transport conveyor means at the respective work station; and

    wherein said transport conveyor means includes a main transport conveyor on said outer frame,a plurality of pallets sized to ride on said main transport conveyor, each for carrying one or more of the work pieces, anda return conveyor for returning empty pallets from a terminal end of said working line to a starting end thereof, said return conveyor being supported on said outer frame under said transport conveyor, andwherein said framed space in said outer frame is formed between said transport conveyor and said return conveyor;

    wherein said transport conveyor and said return conveyor comprise, respectively, a pair of right and left conveying members provided in parallel to each other on both lateral sides thereof;

    said outer frame comprises a plurality of supporting frames in portal shape provided at a predetermined pitch in the longitudinal direction of the working line, a pair of right and left guide members for said transport conveyor extendedly provided between upper portions of said supporting frames for guiding said conveying members of the transport conveyor, and a pair of right and left guide members for said return conveyor extendedly provided between lower portions of said supporting frames for guiding said conveying members of the return conveyor; and

    said framed space is provided between said guide members for said transport conveyor and said guide members for said return conveyor.

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