JP4953986B2 - Packaging container, lid, packaging container with lid, and food packaging body - Google Patents

Description

  The present invention relates to a packaging container suitable for containing an object to be packaged such as food, a lid attached to the packaging container, a packaging container with a lid, and a food packaging body.

Conventionally, resin-made packaging containers are widely used as containers for storing food such as lunch boxes and side dishes. In these packaging containers, the appearance when food is served is also an important quality.
As this type of packaging container, there is a packaging container in which a peripheral frame made of a foamable resin plate or the like is provided on the outside of a container body that contains food or the like (see, for example, Patent Documents 1 to 3).
In this container, since a high-class feeling can be produced by the peripheral side frame, the appearance can be improved and the commercial value can be increased. In addition, since the heat insulation is enhanced by the peripheral frame, there is an advantage that there is less risk of burns when the container is held by hand even when the food or the like is heated to high temperature by heating with a microwave oven.
JP 2005-263283 A JP 2005-263284 A JP 2002-166978 A

However, since this type of packaging container has a peripheral frame, there is a problem that the height when a plurality of the containers are stacked increases, and the cost required for transportation and storage increases. If the circumferential side frame is formed low, the stacking height can be lowered, but if the circumferential side frame is lowered, the container main body becomes conspicuous and the appearance is inferior.
The present invention has been made in view of the above circumstances, and can reduce the stacking height, improve the appearance and increase the commercial value, a lid attached to the packaging container, with a lid An object is to provide a packaging container and a food package.

The packaging container of the present invention is a packaging container comprising a container main body and a peripheral side frame provided outside the container main body, and the container main body has a plan view shape having a plurality of sides. A bottom plate portion and a side wall portion standing on the periphery of the bottom plate portion, and an end portion of the side wall portion formed on the side portion is formed higher than the peripheral frame, and is formed at both end portions of the side wall portion. A low edge portion formed lower than the end portion is formed in the intermediate portion.
The packaging container of this invention WHEREIN: The said low edge part is good also as a shape which has the inclination part which becomes low gradually toward the approximate center of the said side part.
In the packaging container of the present invention, it is preferable that the height of the peripheral frame is the same as or lower than the height of the lowest portion of the low edge portion of the container body.
In the packaging container of the present invention, the side wall portion has an upright portion that rises from the periphery of the bottom plate portion, and a folded portion that folds outward from the upper edge and hangs down, and an outer surface of the folded portion is It is preferable that it is inclined inward toward the upper edge.
In the packaging container according to the present invention, the outer surface of the folded portion is a container member that is a convex portion or a concave portion that is engaged with a lid engaging portion that is formed on a lid that is detachably attached to the opening of the container body. It is preferable that the stop part is formed.
The packaging container of this invention WHEREIN: It is preferable that the said container latching | locking part is a latching convex part formed protruding outward.
In the packaging container of the present invention, it is preferable that a position display protrusion is formed in the approximate center of the bottom plate portion.

The lid of the present invention is a lid that is detachably attached to the opening of the container body of the packaging container according to the present invention, and has a lid step portion formed along the low edge portion. And
The packaging container with a lid according to the present invention is characterized in that the lid is attached to the packaging container according to the present invention.
The food packaging body of the present invention is characterized in that food as a package is placed in the container body of the packaging container according to the present invention, and the lid is attached to the packaging container.

In the packaging container of the present invention, since the low edge portion is formed on the side wall portion, the container main body is less noticeable than in the case where there is no low edge portion. Since the peripheral side frame excellent in terms of appearance can be conspicuous, the appearance of the packaging container can be improved.
For example, if the peripheral frame is decorated with a grain, the user can be reminded of an image close to a high-quality wooden folding box, and the product value can be increased.
Since the peripheral side frame can be conspicuous, the appearance is good even when the peripheral side frame is formed low.
Since the peripheral side frame can be formed low without deteriorating the appearance, the height when a plurality of the frames are stacked can be reduced, and the cost required for transportation and storage can be suppressed.
In this packaging container, since the end portion of the side wall portion is formed high, the accommodation amount of food to be packaged (food, etc.) is not greatly inferior even though the low edge portion is formed.
Moreover, since the edge part of the side wall part is formed higher than the surrounding side frame, the packaging container can be stacked stably.

FIG. 1 is a perspective view showing a packaging container 10 which is an example of the packaging container of the present invention. FIG. 2 is a front view of the packaging container 10. 3A and 3B show the packaging container 10, where FIG. 3A is a plan view, FIG. 3B is a side sectional view, and FIG. 3C is a front sectional view. FIG. 4 is a cross-sectional view showing a main part of the packaging container 10. FIGS. 5A and 5B show the lid 3 that can be attached to the packaging container 10. FIG. 5A is a plan view, FIG. 5B is a side view, and FIG. 5C is a front view. FIG. 6 is a perspective view showing a packaging container with a lid comprising the packaging container 10 and the lid 3. FIG. 7 is a side view showing a packaging container with a lid. FIG. 8 is a cross-sectional view showing the main part of the packaging container with a lid. FIG. 9 is a cross-sectional view showing a state in which two packaging containers 10 are stacked. Note that the scales in these drawings are not necessarily accurate.
In the following description, as shown in FIG. 4, the direction from the outside of the container to the inside along the horizontal direction is referred to as inward, and the opposite direction is referred to as outward.

As shown in FIGS. 1 to 3, the packaging container 10 includes a container body 1 and a peripheral frame 2 provided outside the container body 1.
The container main body 1 includes a bottom plate portion 4 and a side wall portion 5 erected on the periphery thereof, and the inside thereof is a storage portion 6 that can store an object to be packaged.
In the example of illustration, the planar view shape of the baseplate part 4 is made into the substantially rectangular shape which has the long side parts 4a and 4a and the short side parts 4b and 4b (refer FIG. 3).
As shown in FIG. 4, the bottom plate portion 4 includes a substantially rectangular flat plate portion 4 c that is arranged substantially horizontally, and leg portions 4 d that hang outwardly from the periphery of the flat plate portion 4 c.

As shown in FIG. 4, the bottom plate portion 4 can be formed at a position higher than the lower end of the peripheral frame 2. Thereby, since the container main body 1 is separated from the floor surface F1 when the packaging container 10 is placed on the floor surface F1, heat input and output between the container main body 1 and the floor surface F1 is reduced, and the heat retaining performance is improved. be able to.
As shown in FIG. 3, a position display protrusion 7 that protrudes upward is formed substantially at the center of the upper surface of the bottom plate portion 4. The shape of the position display protrusion 7 is not particularly limited, and may be, for example, a truncated cone shape or a hemispherical shape.
Since the center position of the container main body 1 can be confirmed by the position display protrusion 7, it is easy to determine the placement position when placing an object to be packaged such as food.

As shown in FIG. 1 and FIG. 3, the side wall part 5 is erected on the periphery of the bottom plate part 4, and is formed on the long side wall part 5 a formed on the long side part 4 a and the short side part 4 b. A short side wall portion 5b. For this reason, the container main body 1 has a substantially rectangular shape in plan view like the bottom plate portion 4.
In addition, the planar view shape of the container main body 1 should just be a shape which has not only the example of illustration but a several side part. For example, a substantially polygonal shape, specifically, a substantially quadrangular shape, a substantially pentagonal shape, a substantially hexagonal shape, or a substantially octagonal shape can be used. In particular, a substantially rectangular shape that is easy to display and stack and is excellent in handling, for example, a square, a rectangle, a rhombus, a parallelogram, and a trapezoid is preferable.

As shown in FIG. 4, the side wall portion 5 includes a standing portion 8 that rises from the periphery of the bottom plate portion 4, and a folded portion 9 that folds outward from the upper edge of the standing portion 8 and hangs down.
The upright portion 8 includes a curved portion 11 that extends outward from the periphery of the bottom plate portion 4 in a substantially circular arc shape, a step portion 12 that extends outward from the outer edge of the curved portion 11, and a step portion And an inner plate portion 13 that extends outwardly from the outer edge of 12 and inclines outward.
The curved portion 11 is curved outward so that the inclination angle with respect to the horizontal plane gradually increases, and the tangential direction of the uppermost portion is close to the inclination direction of the inner plate portion 13.
In the packaging container 10, since the side wall part 5 has the curved part 11, compared with the case where the inner surface of the side wall part 5 is a fixed angle close | similar to the perpendicular direction V1, the packaged goods (foodstuff etc.) in the container main body 1 are contained. Increases volume and improves appearance.

  The folded portion 9 includes a top plate portion 15 that extends substantially horizontally outward from the upper edge of the inner plate portion 13, an outer plate portion 16 that extends obliquely downward from the outer edge of the top plate portion 15, and the outer plate portion 16. A stepped portion 17 having an arcuate cross section formed so as to protrude outward from the bottom, and a flange portion 18 extending outward from the lower end of the stepped portion 17.

The outer plate portion 16 is inclined inward at a substantially constant angle as it goes upward, and the inclination angle of the outer surface, that is, the inclination angle with respect to the vertical direction V1 (direction perpendicular to the flat plate portion 4c) shown in FIG. α1 can be set to 2 to 20 degrees, for example.
By forming the outer plate portion 16 to be inclined, the container body 1 is less noticeable than when the outer plate portion 16 is vertical. Since the peripheral side frame 2 excellent in terms of appearance can be made conspicuous, the appearance of the packaging container 10 can be improved.

  The outer plate portion 16 can be formed close to the inner surface of the peripheral frame 2. By forming the outer plate portion 16 at a position close to the circumferential frame 2, when the circumferential frame 2 is bent and deformed inward by the fixing recess 24, the circumferential frame 2 is supported from the inside, and more Deformation can be prevented.

As shown in FIGS. 1 to 3, the end portion 5 c of the side wall portion 5 formed on the side portions 4 a and 4 b is formed higher than the peripheral frame 2. The end portion 5 c is a portion corresponding to a corner portion of the substantially rectangular container body 1.
Since the end portion 5 c is formed higher than the peripheral frame 2, the article to be packaged is not easily spilled from the container body 1. In addition, a plurality of packaging containers 10 can be stacked stably.

A low edge portion 20 formed lower than the end portion 5 c is formed in the middle portion of the side wall portion 5, that is, between both end portions 5 c and 5 c of the side wall portion 5.
The low edge portion 20 is a portion in which the upper edge of the side wall portion 5 is formed in a concave shape. In the illustrated example, the lower edge portion 20 is formed at the center bottom portion 21 formed substantially at the center of the side portions 4a and 4b and ends from both ends of the center bottom portion 21 It is a substantially trapezoidal recessed part which has the inclination part 22 formed over the part 5c and 5c vicinity.

The center bottom portion 21 is a linear portion formed substantially horizontally and is the lowest portion of the low edge portion 20. In the illustrated example, the height position of the central bottom portion 21 is substantially the same as the height position of the upper end portion of the peripheral side frame 2, but the height position of the central bottom portion 21 may be higher than the upper end portion of the peripheral side frame 2. .
The inclination part 22 inclines so that it may become low gradually toward the edge part of the center bottom part 21 from the position near the edge parts 5c and 5c. The inclined portion 22 is inclined at a substantially constant angle. Note that the angle of the inclined portion may not be constant.
In the illustrated example, the top plate portion 15 in the low edge portion 20 is wider at the lower portion, and is formed to be widest at the center bottom portion 21. This makes it difficult for items to be packaged (food, etc.) to fall out even at low positions.

By forming the low edge portion 20, the container body 1 becomes less conspicuous as compared with the case where the low edge portion 20 is not provided. Since the peripheral side frame 2 excellent in terms of appearance can be made conspicuous, the appearance of the packaging container 10 can be improved.
In the example of illustration, since the low edge part 20 is the shape which has the inclination part 22, the side wall part 5 will be formed so that the position close | similar to the edge part 5c where a to-be-packaged item is easy to spill out. For this reason, the fall of the accommodation amount of the container main body 1 can be suppressed.
In addition, the low edge part 20 should just be formed lower than the edge part 5c, and the shape is not limited to the example of illustration. For example, a concave portion such as a rectangular shape, a substantially U shape, a substantially V shape, or a substantially arc shape can be used.

On the upper part of the outer surface of the outer plate portion 16 in the vicinity of the end portion 5c, a locking projection 19 (container locking portion) that locks on the lid locking portion 39 formed on the lid 3 is formed.
The locking projections 19 are protrusions formed to protrude outward from the outer surface of the outer plate portion 16 along the extending direction of the side wall portion 5, and are formed at both ends of the side portions 4a and 4b, respectively. Has been. The cross-sectional shape of the locking projection 19 is not particularly limited, and can be, for example, a substantially trapezoidal shape or a substantially semicircular shape.
The structure in which the lid is locked to the container main body is not limited to the illustrated example, and a locking recess that is a container locking portion is formed on the outer surface of the outer plate portion 16, and the lid locking portion 39 is formed in this locking recess. It is also possible to adopt a structure in which is locked.

As shown in FIG. 9, the protrusion height of the locking projection 19 is such that when the container body 1 and the peripheral side frame 2 are stacked, the upper part of the container body 1 of the packaging container 10 located below is It is set so that it can be accommodated in the peripheral side frame 2 of the packaging container 10 positioned above.
The protruding height of the locking projection 19 is set so that the front end of the locking projection 19 of the packaging container 10 positioned below is close to the inner surface of the peripheral frame 2 of the packaging container 10 positioned above. Then, when a plurality of packaging containers 10 are stacked, it is desirable that the horizontal displacement of the packaging containers 10 hardly occurs.

The container body 1 and the lid 3 can be formed by molding a resin sheet. As the resin, for example, polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), or the like can be used.
As the forming method, vacuum forming, pressure forming, vacuum pressure forming, etc. can be adopted.

As shown in FIGS. 1 to 3, the peripheral frame 2 has a shape that follows the outer shape of the container body 1, and is a frame having a constant height that is substantially rectangular in plan view in the illustrated example.
As shown in FIG. 4, the peripheral side frame 2 is formed substantially along the vertical direction V1. The peripheral frame 2 can be formed of a plate material having a certain thickness. For example, a plate material made of foamed resin having a thickness of 2 to 8 mm can be used.

A high-class feeling can be given by decorating the outer surface of the peripheral side frame 2 with a grain pattern or the like.
A fixed recess 24 to which the container body 1 is fixed is formed on the inner surface of the peripheral frame 2. In the example of illustration, the fixed recessed part 24 is made into the groove shape of the cross-sectional rectangular shape in which the collar part 18 of the container main body 1 is inserted, and is formed in the inner surface of the circumferential side frame 2 along the horizontal direction.
In the example shown in FIG. 4, the lower surface of the flange portion 18 is in contact with the inner surface (lower surface 24 a) of the fixing recess 24 and is fixed by an adhesive or the like.
The height of the peripheral frame 2 can be the same as or lower than the height of the central bottom 21 of the low edge 20. Thereby, the height when a plurality of packaging containers 10 are stacked can be reduced.

As shown in FIGS. 5 and 6, the lid 3 is detachably attached to the opening of the container body 1, and has a top plate portion 31 and a lid side wall portion 32 that hangs down from the periphery thereof.
The lid side wall portion 32 includes a side plate portion 33 that extends outwardly from the outer edge of the top plate portion 31 while being inclined downward, and a horizontal extension formed to protrude outward from the lower end of the side plate portion 33 substantially horizontally. It has a protruding portion 34, a hanging portion 35 that hangs down from the outer edge of the horizontal extending portion 34, and a tip extending portion 36 that extends outward from the lower end of the hanging portion 35 almost horizontally.

As shown in FIGS. 7 and 8, the side plate portion 33 is formed with a lid step portion 38 formed along the upper edge of the container body 1. The lid step portion 38 is a portion where the side plate portion 33 is bent and extends outward, and is formed along the entire circumference of the side plate portion 33.
As shown in FIG. 7, the lid step portion 38 is formed along the upper edge of the side wall portion 5 when the lid 3 is attached to the packaging container 10. The lid step portion 38 at a position corresponding to the low edge portion 20 is formed to protrude downward in accordance with the shape of the low edge portion 20.

As shown in FIG. 8, a lid locking portion 39 that locks to the locking projection 19 of the container body 1 is formed in the lower portion of the side plate portion 33. The lid locking portion 39 is formed on the inner surface of the side plate portion 33 so as to protrude inward, and is locked to the lower surface of the locking convex portion 19 when the lid 3 is attached to the container body 1. Yes.
The horizontal extension portion 34 and the hanging portion 35 are formed along the upper surface and the outer surface of the peripheral frame 2, respectively.

  A food package is obtained by storing food as an article to be packaged in the container body 1 and attaching the lid 3 to the container body 1.

As shown in FIG. 9, when a plurality of packaging containers 10 are stacked, the packaging container 10 is arranged such that the lower end surface of the circumferential side frame 2 positioned above abuts the upper end surface of the circumferential side frame 2 positioned below. Are stacked.
Since the end of the side wall 5 is formed higher than the peripheral frame 2, the upper part of the container body 1 of the packaging container 10 positioned below is placed in the peripheral frame 2 of the packaging container 10 positioned above. Be contained. For this reason, the packaging container 10 can be stacked stably.
Further, when the packaging containers 10 are stacked, the upper packaging container 10 is guided by the container body 1 of the lower packaging container 10, so that the stacking operation is facilitated.
Although the outer plate portion 16 of the container body 1 is inclined inward, a locking projection 19 is formed on the outer surface of the outer plate portion 16, so that the container body 1 of the lower packaging container 10 and the upper portion The distance from the inner surface of the peripheral side frame 2 of the packaging container 10 becomes smaller. For this reason, the horizontal displacement of these two packaging containers 10 is less likely to occur.

As shown in FIGS. 1 to 3, in the packaging container 10, since the low edge portion 20 is formed on the side wall portion 5, the container body 1 becomes less conspicuous as compared with the case where there is no low edge portion 20. Since the peripheral side frame 2 excellent in terms of appearance can be made conspicuous, the appearance of the packaging container 10 can be improved.
For example, if the peripheral frame 2 is decorated with a grain, the user can be reminded of an image close to a high-quality wooden folding box, and the commercial value can be increased.
Since the peripheral side frame 2 can be made conspicuous, even when the peripheral side frame 2 is formed low, the appearance is good.
Since the peripheral side frame 2 can be formed low without deteriorating the appearance, as shown in FIG. 9, the height when a plurality of the frames are stacked can be reduced, and the cost required for transportation and storage can be suppressed.

  In the packaging container 10, the formation position of the low edge portion 20 is an intermediate portion of the side wall portion 5. . This is because the intermediate part of the side wall part 5 has a smaller contribution to the function of holding the packaged object than the end part, so even if it is formed on the low edge part 20 in the intermediate part, the reduction in the accommodation amount is small. is there.

FIG. 10 shows another example of the shape of the packaging container in plan view.
The packaging container 50 shown in FIG. 10 has a substantially octagonal peripheral side frame 52 in plan view formed outside the container body 51 in plan view.
In the container main body 51, side wall portions 55 are respectively formed on the eight side portions 54 a of the bottom plate portion 54 having a substantially octagonal shape in plan view.
An end portion 55a of the side wall portion 55 is formed higher than the peripheral frame 52, and a low edge portion 56 formed lower than the end portion 55a is formed in an intermediate portion of the side wall portion 55.
Reference numeral 57 denotes a locking projection that is locked to a lid (not shown) attached to the container body 51.

In the example shown in FIGS. 1 to 10, the container body is formed in a polygonal shape in plan view, but the shape of the container body is not limited to this, and the side portion may be a curve.
A packaging container 60 shown in FIG. 11 has a peripheral side frame 62 having a substantially circular shape in plan view formed outside a container body 61 having a generally circular shape in plan view.
In the container body 61, side wall portions 65 are respectively formed on arc-shaped side portions 64a obtained by dividing the periphery of the bottom plate portion 64 that is substantially circular in plan view into four parts. These four side wall portions 65 form a single cylinder as a whole.
An end portion 65 a of the side wall portion 65 is formed higher than the peripheral frame 62, and a low edge portion 66 formed lower than the end portion 65 a is formed in an intermediate portion of the side wall portion 65.
Reference numeral 67 denotes a locking projection that is locked to a lid (not shown) attached to the container body 61.

FIG. 12 shows another example of the shape of the low edge portion.
The packaging container 70 shown in FIG. 12 has the same configuration as the packaging container 10 shown in FIG. 1 except for the shape of the low edge portion 72 formed on the side wall 5 of the container body 71. The low edge portion 72 is a substantially rectangular recess.

It is a perspective view which shows the container main body and peripheral side frame of an example of the packaging container of this invention. It is a front view of a container main body and a peripheral side frame. The container main body and the peripheral side frame are shown, (a) is a plan view, (b) is a side sectional view, and (c) is a front sectional view. It is sectional drawing which shows the principal part of a container main body. The lid is shown, (a) is a plan view, (b) is a side view, and (c) is a front view. It is a perspective view which shows the container for packaging with a lid | cover. It is a side view which shows the container for packaging with a lid | cover. It is sectional drawing which shows the principal part of the packaging container with a lid | cover. It is sectional drawing which shows the state which accumulated the container for two packaging. The other example of the container for packaging is shown. The other example of the container for packaging is shown. The other example of the container for packaging is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Container main body, 2 ... Circumferential frame, 3 ... Cover, 4 ... Bottom plate part, 5 ... Side wall part, 5c ... End part, 6 ... Storage part, 7 ... Position indication protrusion, 8 ... Standing part, 9 ... Folding part, 10, 50, 60, 70 ... Container for packaging, 16 ... Outer plate part, 19 ... Locking convex Part, 20 ... low edge part, 22 ... inclined part, 39 ... lid locking part.

Claims (10)

A packaging container comprising a container body and a peripheral frame provided outside the container body,
The container body includes a bottom plate portion having a plurality of sides and a plan view shape, and a side wall portion standing on the periphery thereof,
The end of the side wall formed on the side is formed higher than the peripheral frame,
A packaging container, wherein a low edge portion formed lower than the end portion is formed in an intermediate portion between both end portions of the side wall portion.   The packaging container according to claim 1, wherein the low edge portion has an inclined portion that gradually decreases toward a substantial center of the side portion.   The packaging container according to claim 1 or 2, wherein the height of the peripheral frame is the same as or lower than the height of the lowest part of the lower edge of the container body. The side wall portion has an upright portion that rises from the periphery of the bottom plate portion, and a folded portion that folds outward from the upper edge and hangs down.
The packaging container according to any one of claims 1 to 3, wherein an outer side surface of the folded portion is inclined inward toward the upper edge.   A container locking portion that is a convex portion or a concave portion that is locked to a lid locking portion formed on a lid that is detachably attached to the opening of the container body is formed on the outer surface of the folded portion. The packaging container according to any one of claims 1 to 4.   The packaging container according to claim 5, wherein the container locking portion is a locking projection that protrudes outward.   The packaging container according to any one of claims 1 to 6, wherein a position display protrusion is formed at substantially the center of the bottom plate portion.   It is a lid | cover detachably attached to the opening part of the said container main body of the packaging container of any one of Claims 1-7, Comprising: It has a lid step part formed along the said low edge part. A lid characterized by that.   A packaging container with a lid, wherein the lid according to claim 8 is attached to the packaging container according to any one of claims 1 to 7.   The foodstuff which is a package is put into the said container main body of the packaging container of any one of Claims 1-7, The lid | cover of Claim 8 was mounted | worn with the said packaging container. Characteristic food packaging.

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