Automatic distribution center system

• US 5,411,151 A
• Filed: 12/07/1993
• Issued: 05/02/1995
• Est. Priority Date: 12/14/1992
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Sasada, Yasuhiro
• Primary Examiner(s): Noland, Kenneth W.
• Application Number:
  US08/162,283
• Time in Patent Office: 511 Days
• Field of Search: 209/583, 209/559, 209/563, 209/564, 209/565, 209/576, 209/912, 209/569, 209/567, 414/273, 414/286, 414/281, 414/282, 414/283, 414/331, 414/285
• US Class Current: 209/583
• CPC Class Codes: B65G 1/1373 for fulfilling orders in warehouses
• CPC Class Codes: Y10S 209/912 Endless feed conveyor with means for holding each item individually

Abstract

There is provided a fully automatic distribution center system capable of preventing mistakes made in distribution caused by human error. The system includes facilities which, after articles to be distributed are brought into the distribution center are conveyed to a storage area, permit the following series of operations to be performed automatically: Sorting of the articles until they are conveyed to a shipping area, storing in various packing styles of the cargoes, arranging of the cargoes, packing, palletizing, and the like. These facilities free workers from the task of handling the articles to be distributed during the usual operation of the center.

Claims

1. An automatic distribution center system including an unloading place for unloading articles of cargo transported into a distribution center, a storage/sorting area for sorting and storing the transported articles of cargo according to how the articles are packed, a shipping area for shipping the articles sorted in accordance with their destination from the distribution center, and a transfer apparatus for transferring the articles from the unloading place to the storage/sorting area or from the storage/sorting area to the shipping area, so that the articles are distributed from the unloading place to the shipping area by automatically sorting the articles in accordance with their destination, the system comprising a pallet-type automatic storage/supply apparatus provided in the storage/sorting area for loading and storing case cargo containing the articles on pallets and performing automatically a taking-out operation in accordance with requests for taking-out the articles, a case picking apparatus for storing cases containing a plurality of the articles each in case units and taking out in case units in accordance with requests for taking-out the articles, and a piece picking apparatus for storing articles each put into opened cases and taking out the articles in the smallest handling unit in accordance with requests for taking-out the articles, whereby the articles loaded on a pallet, the articles contained in cases and an individual article are automatically taken out in accordance with requests for taking-out the articles, and the taken-out articles are packed and palletized using a case packing machine and a palletizer so as to distribute the articles from the shipping area in accordance with their destination.

2. An automatic distribution center system according to claim 1, further comprising a transfer port provided in the unloading place and in the shipping area, and an automatic reader and an identification mark indicator provided in said transfer port for identifying articles which have been brought in and for comparing the identified articles to information related to arrived articles of cargo so as to instruct their destination to the transfer apparatus, said identification mark indicator providing additional identifying marks with respect to the articles which the automatic reader may have difficulty in identification thereof so as to avoid interference in the automatic operation within the distribution center, said transfer apparatus having a loop-like railway for connecting the unloading place, the storage/sorting area and the shipping area to each other, the transfer port of the unloading area and the transfer port of the shipping area having the same function, and when a load in one of the transfer ports of the unloading place and the shipping area reaches its peak, the load being designed to be equalized using another transfer port.

3. An automatic distribution center system including an unloading place for unloading articles of cargo transported into a distribution center, a storage/sorting area for sorting and storing the transported articles of cargo according to how the articles are packed, a shipping area for shipping the articles sorted in accordance with their destination from the distribution center, and a transfer apparatus for transferring the articles from the unloading place to the storage/sorting area or from the storage/sorting area to the shipping area, so that the articles are distributed from the unloading place to the shipping area by automatically sorting the articles in accordance with their destination, the system comprising a pallet-type automatic storage/supply apparatus provided in the storage/sorting area for loading and storing cases containing the articles on pallets and performing automatically a taking-out operation in accordance with requests for taking-out the articles, a case picking apparatus for storing cases containing a plurality of the articles each in case units and taking out in case units in accordance with requests for taking-out the articles, a piece picking apparatus for storing articles each put into opened cases and taking out the articles in the smallest handling unit in accordance with requests for taking-out the articles, thereby allowing articles transferred to the pallet-type automatic storage to be shipped from the shipping area by passing in a reverse order to a route which the arrived articles took in a package style in accordance with requirements for shipping the articles, and articles not shipped from the shipping area in an originally storing package style to be sent to a depalletizer through a load transfer conveyor and a pallet-load supply conveyor to separate the articles to an individual case and a pallet, so that the individual cases are sent to the case picking apparatus or the piece picking apparatus by way of a case storing conveyor and a case transfer conveyor, and the pallet is sent again to the pallet storage/supply apparatus through the pallet-load supply conveyor and the pallet-load transfer conveyor.