U.S. patent application number 11/454370 was filed with the patent office on 2007-12-20 for food box.
Invention is credited to Jingdong Wu.
Application Number | 20070289963 11/454370 |
Document ID | / |
Family ID | 38860543 |
Filed Date | 2007-12-20 |
United States Patent
Application |
20070289963 |
Kind Code |
A1 |
Wu; Jingdong |
December 20, 2007 |
Food box
Abstract
A food box comprises a base and a cover, the cover and the base
each is formed on their edge thereof with an annular engaging
portion, respectively, the engaging portion of the cover is
employed to be engaged with the engaging portion of the base. Each
of the engaging portions of the base and the cover are a protruding
structure located around the periphery of the base and is formed in
its bottom with a groove, and each of the engaging portions is in
such a shape in cross section that its upper part is smaller than
its lower part. When two bases or covers are stacked up, the
distance between the two neighboring bases or the two covers is
less than the height of the engaging portion of a single base or a
single cover, thus substantially reducing the required storage
space of the product while improving the transportation volume.
Inventors: |
Wu; Jingdong; (Tai Shan
City, CN) |
Correspondence
Address: |
CHARLES E. BAXLEY, ESQ.
90 JOHN STREET, THIRD FLOOR
NEW YORK
NY
10038
US
|
Family ID: |
38860543 |
Appl. No.: |
11/454370 |
Filed: |
June 15, 2006 |
Current U.S.
Class: |
220/4.21 |
Current CPC
Class: |
B65D 2543/00296
20130101; B65D 2543/00731 20130101; B65D 2543/00694 20130101; B65D
21/0233 20130101; B65D 2543/00101 20130101; B65D 2543/00805
20130101; B65D 2543/00027 20130101; B65D 43/0208 20130101; B65D
2543/00555 20130101; B65D 2543/00537 20130101; B65D 2543/00351
20130101; B65D 2543/0062 20130101; B65D 2543/00509 20130101 |
Class at
Publication: |
220/4.21 |
International
Class: |
B65D 6/28 20060101
B65D006/28 |
Claims
1. A food box comprising a base and a cover, the cover and the base
each being formed on their edge thereof with an annular engaging
portion, respectively, the engaging portion of the cover employed
to be engaged with the engaging portion of the base, characterized
in that: each of the engaging portions of the base and the cover
are a protruding structure located around the periphery of the base
and is formed in its bottom with a groove, and each of the engaging
portions is in such a shape in cross section that its upper part is
smaller than its lower part.
2. The food box as claimed in claim 1, wherein each of the engaging
portions is trapezoid-shaped or arc-shaped in cross section, with
its upper part smaller than its lower part.
3. The food box as claimed in claim 1, wherein a bevel edge is
formed on an outer periphery of the engaging portion of the
cover.
4. The food box as claimed in claim 2, wherein a bevel edge is
formed on an outer periphery of the engaging portion of the
cover.
5. The food box as claimed in claim 1, wherein a plurality of
elastic clamping pieces is provided on a periphery of the bottom of
the cover.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a packaging container, and
more particularly to a new style food box.
[0003] 2. Description of the Prior Art
[0004] As shown in FIG. 1, a conventional food box comprises a base
1 and a cover 2. The base 1 and the cover 2 each is formed in their
edge thereof with an engaging portion 11 and 21, so that the cover
2 can mate with the base 1 through the engagement of the engaging
portions 11 and 21. However, when a plurality of such bases 1 and
covers 2 are stacked up, respectively, the distance L between two
neighboring bases 1 or between two covers 2 is not less than the
height of the engaging portion of a single base or cover. And in
transportation or storage, the bases and the covers are usually
stacked up, plus the food box is light, normally, a 5 ton truck can
only carry 2 tons of food box. Therefore, the base and the cover of
this type of food box do not facilitate transportation and storage
since they occupy a lot of space when being stacked up.
[0005] The present invention has arisen to mitigate and/or obviate
the afore-described disadvantages.
SUMMARY OF THE INVENTION
[0006] The primary objective of the present invention is to provide
a simply structured food box which can provide the effect of
reducing the required storage space while improving the
transportation volume.
[0007] To obtain the abovementioned objective, the food box in
accordance with the present invention comprises a base and a cover,
the cover and the base each is formed on their edge thereof with an
annular engaging portion, respectively, the engaging portion of the
cover is employed to be engaged with the engaging portion of the
base. Each of the engaging portions of the base and the cover is a
protruding structure located around the periphery of the base or
the cover and is formed in its bottom with a groove, and each of
the engaging portions is in such a shape in cross section that its
upper part is smaller than its lower part.
[0008] Each of the engaging portions is trapezoid-shaped or
arc-shaped in cross section, with its upper part smaller than its
lower part.
[0009] A bevel edge is formed on an outer periphery of the engaging
portion of the cover, and the bevel edge makes it easier for the
user to open the cover and can prevent the engaging portions form
contamination.
[0010] When two bases or covers are stacked up, the distance
between the two neighboring bases or the two covers is less than
the height of the engaging portion of a single base or a single
cover, thus substantially reducing the required storage space of
the product while improving the transportation volume.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is an illustrative view of showing the existing food
box;
[0012] FIG. 2 is an illustrative view of showing a cover and a base
of a food box in accordance with the present invention;
[0013] FIG. 3 is a transverse cross section view of showing the
cover and the base of the food box in accordance with the present
invention;
[0014] FIG. 4 is a longitudinal cross section view of showing the
cover and the base of the food box in accordance with the present
invention;
[0015] FIG. 5 is a cross sectional assembly view of showing the
cover and the base of the food box in accordance with the present
invention;
[0016] FIG. 6 is a transverse cross section view of showing that
two covers and two bases of the food box in accordance with the
present invention are being stacked up;
[0017] FIG. 7 is a longitudinal cross section view of showing that
two covers and two bases of the food box in accordance with the
present invention are being stacked up;
[0018] FIG. 8 is an illustrative view in accordance with the
present invention of showing the bottom surface of the cover of the
base; and
[0019] FIG. 9 is an illustrative view of showing a food box
structure in accordance with a second embodiment of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0020] The present invention will be more clear from the following
description when viewed together with the accompanying drawings,
which show, for purpose of illustrations only, the preferred
embodiment in accordance with the present invention.
[0021] FIG. 2 shows a food box in accordance with the present
invention, and the food box comprises a cover 2 and a base 1.
[0022] As shown in FIGS. 3 and 4, the cover 2 and the base 1 each
is formed on their edge thereof with a slant hem 12 and horizontal
hem 22. An engaging portion 11 and 21 is formed at the outer
periphery of the slant hems 12 and horizontal hem 22, respectively,
and the engaging portion 11 and 21 is trapezoid-shaped in cross
section, with its upper part smaller than its lower part. The
engaging portion 11 of the base 1 is an annular protruding
structure located around the periphery of the base 1 and is formed
in its bottom with a groove, and likewise, the engaging portion 21
of the cover 2 is a protruding structure located around the
periphery of the cover 2 and is formed in its bottom with a groove.
In addition, a bevel edge 211 is formed on the outer periphery of
the engaging portion 21.
[0023] Referring to FIG. 5, when the cover 2 is rested on the base
1, the engaging portion 21 of the cover 2 is engaged with the
engaging portion 11 of the base 1, namely, the engaging portion 11
of the base 1 is received in the groove in the bottom of the
engaging portion 21 of the cover 2, and thus the cover 2 is placed
in position to seal the base 1.
[0024] During transportation or storage, a plurality of bases and
covers should be stacked up for saving space, as shown in FIGS. 6
and 7. Two bases 1 and 1' are stacked up, the base 1 is received in
the base 1' in such a manner that the engaging portion of the base
1' is received in the groove in the bottom of the engaging portion
11 of the base 1, and the covers 2 and 2' are stacked up likewise.
When the bases 1 and 1' or the covers 2, 2' are stacked up, since
the engaging portion is a four-sided pyramid in cross section, the
distance H between two neighboring bases 1 or between two covers 2
is less than the height of the engaging portion of a single base or
a single cover. In the manner as shown in FIGS. 6 and 7, a
plurality of bases or covers are stacked up, and storage space is
substantially reduced as compared with the conventional food
box.
[0025] Referring then to FIG. 8, to improving the tightness between
the base 1 and the cover 2, a plurality of elastic clamping pieces
23 is provided on the periphery of the bottom of the cover 2, when
the cover 2 is closed, the elastic clamping pieces 23 will clamp
against the outer periphery of the base 1, preventing the
disengagement of the cover 2 from the base 1.
Embodiment 2
[0026] As shown in FIG. 2, the engaging portions 11 and 21 of the
base 1 and the cover 2 are an arc-shaped groove in cross section,
with its upper part smaller than its lower part.
[0027] While we have shown and described various embodiments in
accordance with the present invention, it is clear to those skilled
in the art that further embodiments may be made without departing
from the scope of the present invention.
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