Envelopes – wrappers – and paperboard boxes – Paperboard box – Variable volume
Patent
1996-12-31
1998-01-13
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Variable volume
206245, 220 8, B65D 8500
Patent
active
057070032
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a so-called box file and, more particularly, to a box file capable of optionally changing its inside width to receive objects therein.
BACKGROUND ART
A box file, which has a certain inside space to receive therein objects, has previously been used when required to file the documents in an office work. The known box file is generally defined by a bottom plate, a pair of side walls respectively connecting with both sides of the bottom plate, and a back wall connecting with these side walls and back wall in a state that it opens into the air at the top portion to have a certain hollow receiving area. These box files are made of hard paper or plastic material to protect the objects from damage effectively using the material hardness and to make good use of space in conformity with types of objects.
However, it should be noticed that the documents as objects to be contained or filed is always increased naturally as time goes on, so that the conventional one has a latent disadvantage not to correspond to an exceeded width because of much documents since it strictly defines the maximum width to receive between both side walls.
Accordingly, if required to file exceeded documents over the defined width for a single box file, it is naturally necessary to use another box file. When files documents as objects to be filed and required to be arranged consistently and relevantly, it can not be expected to be filed within one box file.
On the contrary, in the conventional box files, when the documents to be contained or filed is rather small in number, the lower portions of the documents tends to be waved or curved down to the bottom direction and, possibly the prior documents may be covered with other documents filed later to thereby be hidden.
The present invention is conceived reviewing the above and has an object to provide a box file capable of changing its width cooperating with the amount of objects to be filed to assure a variable and stable receiving state for several types of the objects.
SUMMARY OF THE INVENTION
In order to achieve the above mentioned object, the conceived box file in the present invention is of a box file which is characterized to have two or more box forming components in a relatively parallel state, each component being defined by at least one plate as a mount surface to make the box forming component stand straight and at least one side wall connecting with the plate, so that the respective plates of the box forming components are coupled evenly on one plane and a first box forming component and a second box forming component are provided such that an intervals between the side walls thereof are reciprocally closed or departed and the respective side walls are adapted not to move in surface directions mutually.
The above-mentioned object will be also attained by a box file having a first box forming component having a pair of side walls and at least one bottom plate and at least one back wall provided between the side walls in an opening state into the air at least at a top portion thereof; and a second box forming component having one side wall formed into a shape symmetrical to or a similar figure smaller than the side wall of the first box forming component and in a parallel state with reference to the side wall of the first box forming component and at least one bottom plate and at least one back wall provided between edges of the side walls, so that the bottom plates and back walls of the first and second box forming components are adapted to be coupled together and the first box forming component and the second box forming component are provided such that an intervals between the side walls thereof are reciprocally closed or departed and the respective side walls are adapted not to move in surface directions mutually.
Now, the first and second box forming components are provided such that the bottom plates and the back walls are respectively aligned on one plane.
Furthermore, the first box forming component is provided with at least one
REFERENCES:
patent: 776042 (1904-11-01), Acheson
patent: 1254991 (1918-01-01), Darst
patent: 2556568 (1951-06-01), Aikman
patent: 2683953 (1954-07-01), Hopkins
patent: 3700159 (1972-10-01), Beigel
patent: 3900157 (1975-08-01), Roth
patent: 4759443 (1988-07-01), Egly
patent: 5192019 (1993-03-01), Meehan
Microfilm of the specification and drawings annexed to the written application of Japanese Utility Model Application No. 168565/1976, Jul. 1978.
Microfilm of the specification and drawings annexed to the written application of Japanese Utility Model Application No. 99977/1986, Jan. 1988.
Elkins Gary E.
Kokuyo Co. Ltd.
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