Envelopes – wrappers – and paperboard boxes – Paperboard box – Elevated bottom wall included in a one-piece box construction
Reexamination Certificate
1999-05-26
2001-02-27
Elkins, Gary E. (Department: 3727)
Envelopes, wrappers, and paperboard boxes
Paperboard box
Elevated bottom wall included in a one-piece box construction
C229S109000, C229S122290, C229S122310, C229S122330, C229S122340
Reexamination Certificate
active
06193148
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a folding type box-shaped container which can be easily assembled and disassembled and which is not bulky in a disassembled state.
As a container, e.g., for foods, chemicals and the like, for example, Japanese Utility Model Publications Nos. JP-Y2-3-27940 and JP-Y2-7-32416 disclose cylindrical containers. These containers have a container body formed by attaching a bottom member
2
made of paper or aluminum to a lower end of a cylindrical member
1
made of paper as shown in FIG.
20
. And, a ring member
3
is embedded in a circumferential portion of an upper end of the cylindrical member
1
which is open, and a circularid member
4
is fitted into the ring member
3
.
The cylindrical member
1
made of paper is fabricated by consecutively winding a kraft paper
6
around a roll
5
which is rotating in the direction of “B” as shown in FIG.
21
. The kraft paper
6
has the form of a roll when supplied. An adhesive is applied to the inner surface of the kraft paper
6
which is taken up around the roll
5
, with an adhesive applicator roll
7
. That is, an adhesive feed roll
8
turns while it is in contact with the adhesive applicator roll
7
, so that the adhesive feed roll
8
feeds a roll surface of the adhesive applicator roll
7
with an adhesive at a constant rate. As a result, the adhesive is applied to the kraft paper
6
which is passed in the direction of “C”, with the adhesive applicator roll
7
. While the kraft paper
6
is taken up around the roll
5
, the cylindrical member
1
is fabricated. The container body having the above-fabricated cylindrical member
1
has high durability due to a multi-layered kraft paper even in a state where an external force is exerted onto a side portion in the direction of an arrow “A” shown in
FIG. 20
, against drop and collapse thereof.
Further, a cylindrical container wholly made of paper, shown in
FIG. 22
, is also known as a conventional container. The container has an internal cylindrical member
9
having a bottom, an external cylindrical member
10
and aid member. The internal cylindrical member
9
and the external cylindrical member
10
are engaged with each other, and the internal cylindrical member
9
has its upper portion projected above the external cylindrical member
10
. The lid member has a circular flat plate portion
11
and a side wall portion
12
extending downward from the circumferential edge of the circular flat plate portion
11
. The side wall portion
12
is formed of a band-like member made of paper, and the side wall portion
12
is bonded to the circumferential edge of the circular flat plat portion
11
with an adhesive. The lid member is fitted onto the upper portion of the internal cylindrical member
9
which is projected from the external cylindrical member
10
.
The above conventional cylindrical containers are shipped, for example, in a state where a chemical or a food are packed in, and such products are distributed from a supplier to an end user. When they are recycled, they are difficult to be folded, so that the cylindrical containers have a problem in that they are bulky. That is, it is difficult to flatten the cylindrical body portions of the above cylindrical containers, and when they are recycled to a shipping plant, they are bulky and require an additional transportation cost. Further, end users have a problem in that since the cylindrical containers have durability in the direction of the arrow “A” in
FIG. 20
, they cannot be flattened. Even when the above conventional cylindrical containers are disposed of as a waste, it takes time to destroy them since they have some strength.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a folding type box-shaped container which easily permits assembling and disassembling, and which is not bulky in a disassembled state so that it can be easily transported or disposed of as a waste.
According to the present invention, the above object of the present invention is achieved by a folding type box-shaped container comprising a container body having a hollow member whose top portion and bottom portion are open, and a bottom member removably attached to the bottom portion of the hollow member, and a lid member being fitted onto the top portion of the hollow member,
the hollow member having a cross-sectional form of a polygon having N sides, where N is an integer of 4 or more, when the hollow member is cut through a plane perpendicular to an axial line thereof, having side surface portions in the number of N, and having lingual portions each of which extends from a lower end portion of the side surface portion, is folded back inward and has two sides and an end,
the bottom member having a flat plate portion having a flat form of a polygon having N sides and being analogous to the cross-sectional form of the hollow member, and side wall portions extending downward from the sides of the flat plate portion, and
each side wall portion of the bottom member being to be received in a space formed between each side surface portion and lingual portion of the hollow member, and the flat plate portion of the bottom member being to be supported by the ends of the lingual portions, when the folding type box-shaped container is assembled.
In the folding type box-shaped container of the present invention, preferably, the side of the lingual portion of the hollow member which is folded inward is engaged with the side of the adjacent lingual portion, when the folding type box-shaped container is assembled. In this case, the inwardly folded lingual portions can be prevented from falling down toward the axial line of the hollow member. Alternatively, in the folding type box-shaped container of the present invention, each lingual portion has at least one projection on the end thereof, and the flat plate portion of the bottom member has holes in which the projections are to be fitted. This configuration is preferred in view of accomplishing the reliable fitting of the lingual portions and the bottom member and preventing the lingual portions from falling down toward the axial line of the hollow member.
In the folding type box-shaped container of the present invention, the lid member preferably has a flat plate portion having a flat form of a polygon having N sides and being analogous to the cross-sectional form of the hollow member, and side wall portions extending downward from the sides of the flat plate portion. When the lid member is covered on the top portion of the hollow member, preferably, the inner surfaces of the lid member and the outer surfaces of top portion of the hollow member are brought into contact such that the gaps therebetween are as small as possible.
In one preferred embodiment of the folding type box-shaped container of the present invention, preferably, the folding type box-shaped container further has an internal hollow member housed in the hollow member for improving the strength of the folding type box-shaped container on assembling and for improving the sealability of the folding type box-shaped container. Preferably, the lower end of the internal hollow member is supported on the flat plate portion of the bottom member, the internal hollow member has its upper portion projected above the top portion of the hollow member, and the projected upper portion of the internal hollow member is fitted with the lid member. In this case, preferably, the lower ends of the side wall portions of the lid member and the top end of the hollow member are in contact with each other at least partly in a state where the lid member is fitted onto the internal hollow member, i.e., in a state where the container body is closed with the lid member.
In the folding type box-shaped container of the present invention, preferably, N=2m is satisfied where m is an integer of 2 or more, in view of an easiness in folding the folding type box-shaped container.
In the folding type box-shaped container of the present invention, a band-like member can be used for the
Elkins Gary E.
Tohsho Logitech Kabushiki Kaisha
Wenderoth , Lind & Ponack, L.L.P.
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