Goods drop out device

Details Goods drop out device Goods drop out device

1993-03-18

1996-01-09

Werner, Frank E.

Material or article handling

Device for emptying portable receptacle

With gate or closure-type discharge control means

414276, 414404, 221242, 220529, 53257, B65G 6523

Patent

active

054824230

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION



FIELD OF THE INVENTION

The present invention relates to a goods drop out device and method therefor. More particularly, the invention relates to a goods drop out device suitable for picking of goods in a goods delivery center and so forth.


PRIOR ART

(A) As disclosed in Japanese Unexamined Utility Model Publication No. 2-86903, a conventional goods picking device employs goods receptacle portions defined in a drop out box and opening and closing devices for opening and closing bottoms of the goods receptacle portions so that the goods can be dropped out of each goods receptacle portion by an opening operation of the opening and closing device onto a collecting conveyer or so forth.
Here, in the conventional goods drop out device, the opening and closing device comprises an opening and closing member for opening and closing the bottom of the goods receptacle portion by movement in parallel to the bottom, and an opening and closing cylinder assembly for shifting the opening and closing member in a range where the opening and closing member is permitted to open and close the bottom of the goods receptacle portion.
However, in the prior art, when the sizes of the goods to be objects of dropping out are different from each other, the arrangement pattern of the goods receptacle portion defined in the drop out box can be differentiated resulting in a difference of the size of the bottom opening of each goods receptacle portion to be opened and closed by the opening and closing member, and thus in a difference of the range of movement of the opening and closing member to accordingly differentiate the stroke length of the opening and closing cylinder assembly. Namely, in the prior art, for drop out devices adapted to drop out mutually different sizes of goods, opening and closing cylinder assemblies having different stroke lengths are required.
An object of the invention is to improve the efficiency of the facility to open and close a bottom opening and closing member for goods receptacle portions having mutually different bottom opening sizes employing an opening and closing cylinder assembly having a uniform stroke length.
(B) On the other hand, in the conventional goods picking device, dropping out of the goods onto the collecting conveyer or so forth is by storing the goods in a plurality of goods receptacle portions defined by partitions inserted into the drop out box and by opening operation of the opening and closing devices.
Here, as disclosed in Japanese Unexamined Utility Model Publication 2-86903, in the conventional goods dropping out method, the opening and closing member corresponding to each individual goods receptacle portion defined in the drop out box by means of partitions is provided so that the opening and closing member corresponding to the individual goods receptacle portion is operated to open upon dropping out of the goods in each goods receptacle portion.
However, in the prior art, it has been necessary to provide an opening and closing member and the their driving portion for each of the goods receptacle portions. Accordingly, between the drop out devices for respectively different sizes of the goods as objects for dropping out and having different arrangement patterns of the goods receptacle portions defined in the drop out boxes, the installation condition of the opening and closing members and the driving portions therefore should be mutually different. Therefore, in the prior art, in order to enable dropping out of various sizes of goods, it becomes necessary to provide a plurality of kinds of drop out devices for respective sizes of the goods, which are differentiated not only in the arrangement of the partitions in the drop out boxes but also in the installation manner of the opening and closing members and the driving portions therefor, thus lowering efficiency of facility.
An object of the invention is to improve the efficiency of facility by enabling dropping out of various sizes of goods employing the drop out devices having common basic constru

REFERENCES:
patent: 2704144 (1955-03-01), Rety et al.
patent: 3028028 (1962-04-01), Nilsson
patent: 5020965 (1991-06-01), Tanaka et al.
patent: 5352081 (1994-10-01), Tanaka

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