U.S. patent application number 10/885602 was filed with the patent office on 2006-01-12 for paper meal box.
Invention is credited to Jung-Chih Chen.
Application Number | 20060006215 10/885602 |
Document ID | / |
Family ID | 35540261 |
Filed Date | 2006-01-12 |
United States Patent
Application |
20060006215 |
Kind Code |
A1 |
Chen; Jung-Chih |
January 12, 2006 |
Paper meal box
Abstract
A paper meal box is comprised of a box body formed of a
boxboard, which has a plurality of predetermined creases and is
folded along the creases and is partially adhesively overlapped,
defining a box bottom member, four box wall members abutting a
periphery of the box bottom member, four box top members each
abutting an edge of the box wall member, and four connecting
corners located at four corners of the box body and abutting the
box wall members. Each of the four connecting corners is partially
adhesively overlapped and adhesively connected with the two
adjacent box top members. Accordingly, the structural strength of
the paper meal box can be reinforced and it is convenient to fold
and adhesively connect the paper meal box.
Inventors: |
Chen; Jung-Chih; (Pingtung
County, TW) |
Correspondence
Address: |
BACON & THOMAS, PLLC
625 SLATERS LANE
FOURTH FLOOR
ALEXANDRIA
VA
22314
US
|
Family ID: |
35540261 |
Appl. No.: |
10/885602 |
Filed: |
July 8, 2004 |
Current U.S.
Class: |
229/186 ;
229/109; 229/125.35 |
Current CPC
Class: |
B65D 5/246 20130101;
B65D 5/563 20130101 |
Class at
Publication: |
229/186 ;
229/109; 229/125.35 |
International
Class: |
B65D 5/24 20060101
B65D005/24; B65D 43/14 20060101 B65D043/14 |
Claims
1. A paper meal box comprising a box body formed of a boxboard
having a plurality of predetermined creases, said box body being
folded along said creases and partially pressed to be adhesively
overlapped, defining a box bottom member, four box wall member
respectively abutting a periphery of said box bottom member, four
box top members respectively abutting edges of said four box wall
members, and four connecting corners located at four corners of
said box body, wherein each of said four connecting corners has a
supporting wall member having a bottom side abutting said box
bottom member, two conjunctive wall members each abutting a lateral
side of said supporting wall member and said box wall member, a top
corner member abutting a top side of said supporting wall member,
and two corner supporting members each abutting said conjunctive
wall member, said two conjunctive wall member being adhesively
connected to said supporting wall member and located outside said
box body, said top corner member being adhesively connected with
said two box top members, said corner supporting members being
adhesively connected to a bottom side of said top corner
member.
2. The paper meal box as defined in claim 1, wherein said boxboard
is made of a paper layer and a water-resistant layer, said
water-resistant layer being coated or accumulated on a top side of
said paper layer.
3. The paper meal box as defined in claim 1, wherein said box top
member comprises a coupling piece and a reinforced piece, said
coupling piece having a side abutting a top edge of said box wall
member, said reinforced piece having a side abutting the other side
of said coupling piece, said reinforced piece being folded to be
adhesively connected on said coupling piece.
4. The paper meal box as defined in claim 1, wherein said two
conjunctive wall members respectively define a first conjunctive
piece and a second conjunctive piece, and a third conjunctive piece
and a fourth conjunctive piece, said first and third conjunctive
pieces each having a side abutting a lateral side of said
supporting wall member, said second and fourth conjunctive pieces
each having a side abutting the other side of one of said first and
third conjunctive pieces, said second and fourth conjunctive pieces
each having the other side abutting said box wall member, said
first and second conjunctive pieces being folded along a crease
formed therebetween and being adhesively connected with each other,
said third and fourth conjunctive pieces being folded along a
crease formed therebetween and being adhesively connected with each
other, said two conjunctive wall members each having an inner side
adhesively connected to an outer side of said supporting wall
members.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates generally to paper meal boxes,
and more particularly to a paper meal box, which structural
strength is reinforced.
[0003] 2. Description of the Related Art
[0004] A conventional paper meal box is usually formed of a
boxboard made of a paper material, which complies with the
regulations of U.S. Food and Drug Administration (FDA), and the
boxboard is folded along predetermined creases. The boxboard is
coated with a water-resistant material, such as polyethylene (PE)
or polypropylene (PP), respectively on a top side thereof and a
bottom side thereof, such that the folded portions of the boxboard
can be adhesively bonded to each other by, usually, hot-pressing
adhesion and keep water from penetrating and further softening the
boxboard.
[0005] In fact, merely the inner side of the paper meal box, i.e.
the top side of the boxboard, can contain objects, like food or
meal, such that the top side the boxboard must be coated with the
water-resistant material. The bottom side of the boxboard is coated
with the water-resistant material for the purpose of the
hot-pressing adhesion to define a predetermined tridimensional
shape of the paper meal box. However, the top and bottom sides of
the boxboard that are coated with the water-resistant material to
cause high production cost and low popularity for the paper meal
box.
[0006] Thus, many manufacturers make the paper meal box which top
side other than the bottom side is coated the water-resistant
material to reduce the production cost and to enhance the
popularity. However, the bottom side of the paper meal box is not
coated with any of the water-resistant material to cause limited
scope where the hot-pressing adhesion is applied and to further
incur understrength structure of the paper meal box.
SUMMARY OF THE INVENTION
[0007] The primary objective of the present invention is to provide
a paper meal box, which production cost is low.
[0008] The secondary objective of the present invention is to
provide a paper meal box, which structural strength is
reinforced.
[0009] The foregoing objectives of the present invention are
attained by the paper meal box, which is comprised of a box body.
The box body is formed of a boxboard, which has a plurality of
predetermined creases and is folded along the creases and is
partially adhesively overlapped, defining a box bottom member, four
box wall members abutting a periphery of the box bottom member,
four box top members each abutting an edge of the box wall member,
and four connecting corners located at four corners of the box
body. The four connecting corners each has a supporting wall
member, two conjunctive wall members, a top corner member, and two
corner supporting members. The supporting wall member has a bottom
edge abutting the bottom wall member. The two conjunctive wall
members each abut one of bilateral sides of the supporting wall
member and the box wall member. The top corner member abuts a top
edge of the box wall member. The two corner supporting members
respectively abut top edges of the two conjunctive wall members.
The two conjunctive wall members are respectively adhesively
connected to the supporting wall member and located at an external
side of the box body. The top corner member has bilateral sides
adhesively connected to the box top member. The two corner
supporting members are adhesively connected to a bottom side of the
top corner member.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is a developed view of a preferred embodiment of the
present invention;
[0011] FIG. 2 is a sectional view of the preferred embodiment of
the present invention;
[0012] FIG. 3 is a perspective view of the preferred embodiment of
the present invention;
[0013] FIG. 4 is a partial enlarged view of FIG. 1, showing that a
box top member is folded and adhesively overlapped;
[0014] FIG. 5 is a partial enlarged view of FIG. 1, showing that a
connecting corner is being folded and adhesively overlapped;
[0015] FIG. 6 is a converse partial enlarged view of FIG. 5,
showing that a top corner member is being adhesively bonded to two
corner supporting members of the connecting corner; and
[0016] FIG. 7 is similar to FIG. 5, showing that the top corner
member is adhesively bonded to the two corner supporting members of
the connecting corner.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0017] Referring to FIGS. 1 and 2, a paper meal box 100 constructed
according to a preferred embodiment of the present invention is
comprised of a box body 10, which is formed of a boxboard 1 cut
properly and folded along its creases of predetermined design and
then pressed to be partially adhesively overlapped.
[0018] Referring to FIG. 2 again, the boxboard 1 includes a paper
layer 2 and a water-resistant layer 3. The paper layer 2 is made of
fiber intermixed with adequate additives, which comply with the
regulations of the FDA. The water-resistant layer 3 is made of PE
or PP and is coated or accumulated on a top side of the paper layer
2 to prevent water from penetrating the paper layer 2, being gluey
by heating. The box body 10 defines a box bottom member 11, four
box wall members 12 located at a periphery of the box bottom member
11, four box top members 13 located at a top edge of the box wall
member 12, a receiving space 14 located between the box bottom
member 11 and the box wall member 12 and having an opening facing
upwards, and four connecting corners 15 respectively located at
four corners of the box body 10 and connected respectively with the
four box wall members 12.
[0019] The box bottom member 11 is rectangular or of other shape
according to requirement, having four corners , each of which is
cutaway not to have a right angle.
[0020] Each of the box wall members 12 has a side abutting a side
of the box bottom member 11.
[0021] Each of the box top members 13 includes a coupling piece 131
and a reinforced piece 132. The coupling piece 131 has a side
abutting a top edge of the box wall member 12. The reinforced piece
132 has a side abutting the other side of the coupling piece 131,
as shown in FIG. 1.
[0022] Each of the connecting corners 15 includes a supporting wall
member 151, two triangular conjunctive wall members 152 and 153, a
top corner member 154, and two corner supporting members 155.
[0023] The supporting wall member 151 is rectangular, having a
bottom end connected with one cutaway corner of the box bottom
member 11.
[0024] The two conjunctive wall members 152 and 153 each abut a
side of the supporting wall member 151 and the box wall member 12,
respectively defining a first conjunctive piece 156, a second
conjunctive piece 157, a third conjunctive piece 158, and a fourth
conjunctive piece 159. Each of the first and third conjunctive
pieces 156 and 158 is triangular, having a tip end abutting the box
bottom member 11 and a side abutting one side of the supporting
wall member 151. Each of the second and fourth conjunctive pieces
157 and 159 is triangular, having a tip end abutting the box bottom
member 11, a side abutting the other side of the first conjunctive
piece 156 or the third conjunctive pieces 158, and the other side
abutting the box wall member 12.
[0025] The top corner member 154 abuts a top end of the supporting
wall member 151.
[0026] The two corner supporting members 155 respectively abut top
ends of the second and fourth conjunctive pieces 157 and 159.
[0027] The formation of the box body is recited as follows.
Firstly, referring to FIGS. 3 and 4, the reinforced piece 132 of
the box top member 13 is folded and adhesively bonded to the
coupling piece 131 to enable the box top member 13 to have the
thickness of two-layers boxboard to further enhance the structural
strength. Secondly, referring to FIGS. 5 and 6, the first and
second conjunctive pieces 156 and 157 are folded at a crease formed
therebetween and pressed to be adhesively overlapped to define the
overlapped conjunctive wall member 152, and the third and fourth
conjunctive pieces 158 and 159 are folded at a crease formed
therebetween and pressed to be adhesively overlapped to define the
overlapped conjunctive wall member 153, such that two sides of the
supporting wall member 151 abutting the connecting corner 15
contact respectively against the two sides of the two adjacent box
wall members 12, and the two overlapped conjunctive wall members
152 and 153 are located outside the box body 10. Thirdly, referring
to FIG. 7, inner sides of the two overlapped conjunctive wall
members 152 and 153 are adhesively bonded to an outer side of the
supporting member 151, and the top corner member 154 is adhesively
bonded to edges of the two adjacent box wall members 13. Finally,
the two corner supporting members 155 are adhesively bonded to a
bottom side of the top corner member 154. It is to be noted that
FIGS. 6 and 7 are viewed at a tilting angle from the bottom side of
the box body 10 facing upwards to clearly show the two conjunctive
wall members 152 and 153 and the two corner supporting members 155
after they are adhesively bonded.
[0028] The present invention includes advantages as follows. The
four corners of the box body are connected by the four connecting
corners to enhance the structurally conjunctive strength of the
four corners of the box body. In other words, the four connecting
corners enable the four corners of the box body not to be connected
at right angle to further disperse stress exerted on the four
corners , i.e. when the box body contains objects, centralization
of the stress on the corners can be avoided. The conjunctive wall
members of the connecting corners are adhesively bonded to the
outer sides of the supporting wall members to enhance supporting
strength of each corner of the box body. In addition, when each of
the top corner members is adhesively bonded to the two adjacent box
top members, a tension is generated and held between the connecting
corner and the box wall member to enhance the structural strength
of the box body.
[0029] Further, each of the top corner members extends from the
conjunctive wall member and is adhesively bonded to the supporting
corner member to be supported by the supporting corner member to
further hold the structural strength of the top corner member.
[0030] Furthermore, the present invention merely needs only one
water-resistant layer coated on the top side of the box board for
the purpose of the pressing adhesion rather than two resistant
layers coated on the top and bottom sides of the box board, thereby
reducing the production cost and shortening the process of the
pressing adhesion to further increase the production.
* * * * *