JP2018008731A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container in which a container part and a lid part are connected in a hinge part, and which can be formed by an inexpensive sheet material, preventing the lid body from becoming bulky when food is stored in the container part and displayed, and capable of opening and holding the lid part to a position enabling properly viewing food.SOLUTION: A packaging container in which: a container part 10 and a lid part 20 are connected in a hinge part P; inclined parts 4b,4b' are provided at opening side end sides 4a,4a' of lateral plates 4,4' of the container part 10; folding pieces 24c,24c' protruding into the opening of the lid part 20 are provided at a rear plate 23 side of opening sides of lateral plates 24,24' of the lid part 20 by folding via linear folding parts 24d,24d' from opening side end sides 24a,24a' to lateral sides 24b,24b'; and the opening side end side of the rear plate 23 of the lid part 20 is positioned at a top plate 21 side than folding pieces 24c,24c'.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a food packaging container.

  As a food packaging container, as disclosed in Patent Document 1, a so-called clamshell carton structure in which a container part and a lid part each having a depth are connected via a hinge part is disclosed. Such packaging containers can be formed from a single sheet material, are inexpensive and easy to dispose of, and are widely used for packaging cooked foods such as hamburgers.

JP 2007-210660 A

  Convenience stores and the like store cooked foods such as fried foods and grilled foods in display cases called hot warmers, and package and sell them according to the purchaser's wishes. Then, there is a demand to store these cooked foods in a packaging container in advance, display them in a state where the foods can be seen, and sell them quickly according to purchase requests.

  The packaging container disclosed in Patent Document 1 normally uses paper or paper coated with a resin as a sheet material. Therefore, if the lid is closed, the food inside cannot be seen. On the other hand, in order to facilitate stacking a large number of such packaging containers, when the lid part is opened, the opening of the lid part is in a position rotated 180 ° from the opening of the container part via the hinge part. The strength of the hinge part is adjusted. Therefore, when food is stored in the packaging container and displayed in the display case, the lid portion is in an open state of 180 °, the lid portion is bulky in the display case, and the number that can be displayed is limited. is there.

  An object of the present invention is a packaging container in which a hinge part is connected to a container part and a lid part, and can be formed of an inexpensive sheet material, and the lid part is bulky when food is stored and displayed in the container part. In addition, an object of the present invention is to provide a packaging container capable of opening and holding a lid at a position where food can be seen moderately.

The present invention is a packaging container in which the container part and the lid part can be opened and closed through a hinge part,
The container portion includes a bottom plate, a front plate, a rear plate, and left and right side plates disposed around the bottom plate;
The lid has a top plate, a front plate, a rear plate, and left and right side plates arranged around the top plate,
In the packaging container in which the opening side end side of the rear plate of the container part and the opening side end side of the rear plate of the lid part constitute the hinge part,
The opening side edge of the side plate of the container portion has an inclined portion that is inclined toward the bottom plate side from the front plate side toward the rear plate side at least on the rear plate side,
The side plate of the lid portion has a folding piece that can be folded into the opening of the lid portion on the rear plate side of the opening side through a linear fold portion from the opening side end side to the side side,
The opening side edge of the rear plate of the lid portion is located on the top plate side with respect to the folded piece.

The present invention includes the following configuration as a preferred embodiment.
(1) The inclined portion is linear,
The sum of the angle of the inclined portion with respect to the bottom plate and the angle of the folded portion with respect to the top plate is less than 90 °.
(2) In the above (1), the angle of the inclined portion with respect to the bottom plate and the angle of the folded portion with respect to the top plate are both less than 60 °.
(3) The inclined portion is linear,
The sum of the angle of the inclined portion with respect to the bottom plate and the angle of the folded portion with respect to the top plate is 30 ° to 60 °.
(4) In the above (3), the angle of the inclined portion with respect to the bottom plate and the angle of the folded portion with respect to the top plate are 10 ° to 40 °, respectively.
(5) In any one of the above (1) to (4), an angle of the inclined portion with respect to the bottom plate is smaller than an angle of the folded portion with respect to the top plate.
(6) The opening side edge of the folding piece is connected in a straight line to the opening side edge of the side plate in the vicinity of the folding piece.

  According to the present invention, when the folding piece provided on the lid portion is folded inward, the folding piece projects into the opening of the lid portion, and when the lid portion is rotated to the container side via the hinge portion, The folded piece comes into contact with the inclined portion of the opening end of the container portion, and a state where an appropriate gap is formed between the opening of the lid portion and the opening of the container portion can be maintained. Therefore, it is possible to display without being bulky in a state where the lid portion is closed halfway and the inside is visible. Further, the folded piece can be folded between the side plate of the container portion and the side plate of the lid portion from the state of being in contact with the inclined portion by suppressing the lid portion, and the lid portion can be easily closed.

  Therefore, according to the present invention, the food stored in the container portion can be displayed without being bulky, and the lid portion can be instantaneously closed and provided to the purchaser. Is possible.

It is an expanded view of the packaging container of one Embodiment of this invention. It is a figure which shows the packaging container of FIG. 1, (a) A perspective view, (b) is a side view. It is a figure which shows the state which bent the folding piece of the packaging container of FIG. 1 inside, and was made to protrude in opening of a cover part, (a) is a perspective view, (b) is a side view. It is a figure which shows the state which folded the folding piece of the packaging container of FIG. 1 inside, and closed the cover part in the state protruded in the opening of the cover part, (a) is a side view, (b) is It is AA 'end elevation in (a). It is a figure which shows the state which folded the folding piece of the packaging container of FIG. 1 between the side plate of the cover part, and the side plate of the container part, and closed the cover part, (a) is a perspective view, (b) is a side view. is there.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments. In the drawings referred to below, the same reference numerals denote the same components.

  1 and 2 are explanatory views of a packaging container according to a preferred embodiment of the present invention, FIG. 1 is an exploded view of the packaging container, and FIG. 2 (a) is a perspective view of the packaging container. (B) is a side view of the packaging container. A one-dot chain line in FIG. 1 indicates a valley fold, and a broken line will be described later.

  The packaging container of the present invention can be formed by folding and appropriately bonding a sheet material with cuts as shown in FIG. The sheet material used in the present invention may be any material provided with appropriate flexibility so as to facilitate folding and folding of a folded piece to be described later, conventionally used paper, resin sheet, Or what coated the resin on the surface of paper is used preferably.

  As shown in FIGS. 1 and 2, the packaging container of the present invention is configured such that the container part 10 and the lid part 20 can be opened and closed via a hinge part P.

  The container 10 is connected to the front plate 2, the rear plate 3, and the pair of side plates 4, 4 ′ on the four sides of the bottom plate 1 via the folding portions, and the lid portion 20 is folded on the four sides of the top plate 21. The front plate 22, the rear plate 23, and the pair of side plates 24, 24 'are connected via the. In the following description, the front plate 2, the rear plate 3, and the side plates 4 and 4 ′ of the container unit 10 are referred to as the lower front plate 2, the lower rear plate 3, and the lower side plates 4 and 4 ′, and the lid 20 The front plate 22, the rear plate 23, and the side plates 24 and 24 'are referred to as the upper front plate 22, the upper rear plate 23, and the upper plates 24 and 24'.

  In this embodiment, sticking pieces 5 and 5 ′ are connected to the lower front plate 2 of the container part 10 on the left and right via folding parts, and the sticking pieces 5 and 5 ′ are respectively connected via folding parts. The lower front plate 2 and the lower plates 4 and 4 ′ are integrally fixed by being bent inward and bonded to the inner side of the lower plates 4 and 4 ′. Also, the left and right sides of the lower back plate 3 are connected to the sticking pieces 6 and 6 ′ via the folding parts, and the sticking pieces 6 and 6 ′ are respectively bent to the inside via the folding parts, The lower rear plate 3 and the lower side plates 4 and 4 ′ are fixed integrally with each other by being bonded to the inside of the side plates 4 and 4 ′. As a result, the lower front plate 2, the lower rear plate 3, and the lower side plates 4, 4 ′ constitute the side wall of the container portion 10.

  Moreover, in this embodiment, sticking pieces 25 and 25 'are connected to the upper plates 24 and 24' of the lid part 20 via the folding parts on the upper front plate 22 side, respectively. , 25 'are bent inward through the folding portions and bonded to the inside of the upper front plate 22, so that the upper front plate 22 and the upper plates 24, 24' are fixed integrally. Also, the left and right sides of the upper rear plate 23 are connected to the sticking pieces 26 and 26 'via the folding parts, and the sticking pieces 26 and 26' are respectively bent to the inside via the folding parts. The upper rear plate 23 and the upper plates 24, 24 'are fixed integrally with each other by being bonded to the inner side of the side plates 24, 24'. As a result, the upper front plate 22, the upper rear plate 23, and the upper plates 24 and 24 ′ constitute the side wall of the lid portion 20.

  In the present embodiment, the lower front plate 2, the lower rear plate 3, and the lower side plates 4, 4 ′ all spread from the bottom plate 1 side toward the opening side, and the container portion 10 extends from the bottom plate 1 toward the opening side. The opening area is widened. The lid 20 has an upper front plate 22, an upper rear plate 23, and upper plates 24, 24 ′ that all spread from the top plate 21 toward the opening side, and the lid portion 20 extends from the top plate 21 to the opening side. The opening area is widening. In the present invention, the container part 10 and the lid part 20 are not limited to the form in which the opening side expands as described above, but at least the opening of the lid part 20 is wider than the opening of the container part 10 so that the lid part 20 is closed. At this time, after the opening side of the container portion 10 is inserted into the lid portion 20 and the lid portion 20 is closed, there is no possibility that foreign matter is mixed inside. Further, at least the lid 20 has an opening area that widens from the top plate 21 toward the opening, so that the opening side of the container 10 can be easily inserted into the lid 20 when the lid 20 is closed. can do.

  In the present invention, the opening side edge of the lower rear plate 3 of the container portion 10 and the opening side edge of the upper rear plate 23 of the lid portion 20 constitute a hinge portion P. In the present embodiment, a cut 41 that separates the lower rear plate 3 and the upper rear plate 23 is formed at the connection portion between the upper rear plate 23 and the lower rear plate 3, and the cut portion 41 defines the connection portion. The strength is weakened. Thereby, the cover part 20 can take the state opened 180 degrees with respect to the container part 10, and can laminate | stack many packaging containers on the orthogonal | vertical direction. Further, by adjusting the strength of the hinge part P, the lid part 20 is easily rotated with respect to the container part 10.

  In the present invention, the opening side edges 4a and 4a 'of the lower side plates 4 and 4' of the container part 10 are at least on the lower rear plate 3 side from the lower front plate 2 side toward the lower rear plate 3 side. It has inclined parts 4b and 4b 'inclined to the side. In the present embodiment, the inclined portions 4b and 4b 'are linear. Further, the upper side plates 24, 24 ′ of the lid part 20 are arranged on the side of the upper rear plate 23 on the opening side, and linear folding portions 24d, 24d ′ from the opening side edges 24a, 24a ′ to the side edges 24b, 24b ′. Folding pieces 24c and 24c 'that can be folded inward via the. The folding pieces 24c and 24c 'project into the opening of the lid portion 20 by being folded inward via the folding portions 24d and 24d'. Further, the opening side end of the upper rear plate 23 of the lid portion 20 is located closer to the top plate 21 than the folding pieces 24c and 24c '.

  As shown in FIGS. 2A and 2B, the packaging container of the present invention is in a state where the container part 10 and the lid part 20 are opened by 180 ° via the hinge part P before use. Here, when the folded pieces 24c and 24c ′ are folded inward at the folded portions 24d and 24d ′, as shown in FIG. 3A, the folded pieces 24c and 24c ′ are covered via the folded portions 24d and 24d ′. It protrudes into the opening of the part 20. FIG. 3B is a side view of the folded pieces 24c, 24c 'folded inward, and the folded pieces 24c are not observed when viewed from the outside on the upper side 24 and lower side 4 side.

  As shown in FIGS. 3A and 3B, when the lid portion 20 is rotated toward the container portion 10 with the folded pieces 24c and 24c ′ folded inward, as shown in FIG. 4B. Further, the folded pieces 24c and 24c ′ protruding into the opening of the lid portion 20 abut against the inclined portions 4b and 4b ′ on the opening side of the lower plates 4 and 4 ′ of the container portion 10 as shown in FIG. Thus, the rotation of the lid 20 stops at a position having a gap between the opening of the container 10 and the opening of the lid 20. Therefore, in the packaging container of the present invention, food is stored in the container portion 10, the folded pieces 24c and 24c ′ are folded inward at the folded portions 24d and 24d ′, and the folded pieces 24c and 24c ′ are inclined to the container portion 10. If the lid part 20 is rotated until it abuts on the parts 4b and 4b ', the food in the container part 10 can be displayed. Moreover, in this state, since the cover part 20 rotates to the middle and arrange | positions on the container part 10, from the state which the cover part 20 shown to FIG. 2 (a), (b) opened completely. Also not bulky. 4A is a side view, FIG. 4B is an AA ′ end view in FIG. 4A, and in FIG. 4B, the AA ′ end face in FIG. It shows with.

  In the present invention, as shown in FIGS. 4A and 4B, the lid 20 is held in a state where the inside of the container 10 can be observed. 4b ′ is the sum of the angle θ1 with respect to the bottom plate 1 and the angle θ2 with respect to the top plate 21 of the folding portions 24d and 24d ′ for folding the folded pieces 24c and 24c ′, that is, the top plate shown in FIG. The angle θ3 formed between the base plate 21 and the bottom plate 1 is preferably less than 90 °. If the sum of θ1 and θ2, that is, θ3 is 90 ° or more, the rotated lid 20 may rotate in the opposite direction again and return to the state of FIGS. 2 (a) and 2 (b).

  In the present invention, θ1 and θ2 shown in FIG. 2B are each preferably less than 60 °. Furthermore, in the present invention, in order to stably maintain the state of FIG. 4A, the sum (θ3) of θ1 and θ2 is preferably 30 ° to 60 °, and in such a range, θ1 and θ2 are respectively It is preferably 10 ° to 40 °.

  Further, it is preferable that θ1 and θ2 satisfy θ1 <θ2. When θ1> θ2, the height of the container portion 10 is higher than that of the lid portion 20 and is likely to become unstable when a large number of packaging containers are stacked. Further, when θ1> θ2, the folded pieces 24c, 24c ′ must be extended to the container part 10 side or formed from a position close to the upper front plate 22, and the folded pieces 24c, 24c ′ are elongated, There is a possibility that the lid portion 20 cannot be supported in a state of being in contact with the inclined portions 4b and 4b ′. Further, the elongated folding pieces 24c and 24c 'may be difficult to be folded between the upper and lower plates 24 and 24' when the lid portion 20 is closed. Therefore, in the present invention, preferably 10 ° ≦ θ1 <θ2 ≦ 40 °.

  In the embodiment shown in FIGS. 1 to 4, the inclined portions 4b and 4b ′ are linear. However, in the present invention, the inclined portions 4b and 4b ′ are not limited to a linear shape, and are convex or concave. It may be a curved shape or a stepped shape. Also in that case, it is desirable that θ3 be less than 90 ° in the state of FIG. Note that the inclined portions 4b and 4b 'are preferably linear in terms of ease of manufacture and manufacturing accuracy.

  Moreover, in the said embodiment, inclined part 4b, 4b 'is the side of the lower back board 3 side of the lower board 4 from the position which approached the lower back board 3 side rather than the center of the opening end of lower board 4, 4'. Although it is formed toward the side, in the present invention, it is only necessary that the end on the lower rear plate 3 side reaches the side on the lower rear plate 3 side, and the end on the opening end side is the lower plate. 4 may be on the lower front plate 2 side from the center of the opening end, and the opening side end sides 4a and 4a ′ of the lower plate 4 may be all inclined portions 4b and 4b ′.

  In addition, the folding pieces 24c and 24c ′ are bent at the folding portions 24d and 24d ′ and when the lid portion 20 is rotated in a state of protruding into the opening of the lid portion 20, the inclined portions 4b and 4b of the container portion 10 are formed. The opening side edges 24e and 24e 'of the folded pieces 24c and 24c' are preferably formed on the upper side plates 24 and 24 in the vicinity of the folded pieces 24c and 24c '. It forms so that it may continue in a straight line to the opening side edges 24a, 24a '. 2 (a) and 2 (b), the folded pieces 24c and 24c ′ do not protrude upward from the upper plates 24 and 24 ′, so that a plurality of packaging containers of the present invention are stacked. At the time of handling or handling, the folding pieces 24c and 24c ′ can be prevented from being bent carelessly.

  In the packaging container of the present invention, as described above, the inside of the container part 10 can be observed and the state of FIG. 4A in which the lid part 20 is stopped above the container part 10 can be maintained. By holding the top plate 21 of the lid part 20 toward the container part 10 in the state, the folded pieces 24c and 24c ′ that are in contact with the inclined parts 4b and 4b ′ are further bent via the folding parts 24d and 24d ′. By being folded between the upper plates 24, 24 ′ and the lower plates 4, 4 ′, the lid portion 20 completely covers the opening of the container portion 10 as shown in FIGS. The lid 20 can be closed. 5A is a perspective view, and FIG. 5B is a side view.

  In the present invention, the folding portions 24d and 24d ′ for folding the folding pieces 24c and 24c ′ can be easily bent by making cuts in the perforations or by performing a half cut. preferable.

  Further, in the present embodiment, as shown in FIG. 1, two straight and parallel cuts 42 and 42 ′ extending between the top plate 21 and the upper rear plate 23 of the lid portion 20 are formed. This is for forming a vent for excluding the steam generated from the food inside after closing the lid part 20 completely, and a fold 43a connecting both ends of the cuts 42, 42 '. , 43a ′ and valley folds 43b connecting the centers in the length direction of the cuts 42, 42 ′ can be formed into a rectangular shape.

  Further, in the present embodiment, locking pieces 4c and 4c ′ projecting outward are provided on the opening side of the side of the lower front plate 4 and 4 ′ of the container unit 10 on the lower front plate 2 side, and the lid 20 The upper and lower plates 24, 24 ′ are provided with locking pieces 25a, 25a ′ projecting outward from the left and right sides of the upper front plate 22 on the adhering pieces 25, 25 ′ connected to the upper front plate 22 side. ing. With such a configuration, when the lid portion 20 is completely closed, as shown in FIG. 5A, the locking pieces 25a and 25a ′ are locked below the locking pieces 4c and 4c ′. The part 20 is fixed so that it does not open naturally. Since the locking pieces 25a, 25a ′, 4c, and 4c ′ are all easily deformed, the locking can be easily released simply by putting the finger on the recess 22a provided on the upper front plate 22 and pulling it up. The lid 20 can be opened.

  As described above, the packaging container of the present invention can be displayed in a state where the food stored in the container part 10 is visible and the lid part 20 is not bulky, but the folding pieces 24c and 24c ′ are folded. If the cover part 20 is closed without using, it can be used similarly to a conventional packaging container. Therefore, the packaging container of this invention can be widely used as a packaging container of food not only in the form displayed and sold in the state which can see the food stored in the container part.

  Further, the packaging container of the present invention stores food in the container portion 10 at the food cooking site, conveys it to the store with the lid portion 20 closed without folding the folded pieces 24c and 24c ′, and the lid portion in the store. 20 can be opened and the folded pieces 24c and 24c ′ that have been folded up can be raised 90 ° and protruded into the opening of the lid portion 20 so that food can be seen.

  1: bottom plate, 2: lower front plate, 3: lower rear plate, 4, 4 ′: lower plate, 4a, 4a ′: opening side edge of lower plate, 4b, 4b ′: hypotenuse portion, 4c, 4c ′: Locking piece, 5, 5 ′, 6, 6 ′: Adhering piece, 10: Container part, 20: Lid part, 21: Top plate, 22: Upper front plate, 23: Upper rear plate, 24, 24 ′: Upper plate, 24a, 24a ′: Open side edge of upper plate, 24b, 24b ′: Side of upper plate, 24c, 24c ′: Folded piece, 24d, 24d ′: Folded part, 24e, 24e ′: Folded piece 25, 25 ′, 26, 26 ′: sticking piece, 25a, 25a ′: locking piece, 41, 42, 42 ′: notch, 43a, 43a ′, 43b: folding part, P: Hinge part

Claims (7)

The container part and the lid part are packaging containers that can be freely opened and closed via a hinge part,
The container portion includes a bottom plate, a front plate, a rear plate, and left and right side plates disposed around the bottom plate;
The lid has a top plate, a front plate, a rear plate, and left and right side plates arranged around the top plate,
In the packaging container in which the opening side end side of the rear plate of the container part and the opening side end side of the rear plate of the lid part constitute the hinge part,
The opening side edge of the side plate of the container portion has an inclined portion that is inclined toward the bottom plate side from the front plate side toward the rear plate side at least on the rear plate side,
The side plate of the lid portion has a folding piece that can be folded into the opening of the lid portion on the rear plate side of the opening side through a linear fold portion from the opening side end side to the side side,
An opening-side end of the rear plate of the lid portion is positioned on the top plate side with respect to the folded piece. The inclined portion is linear,
A packaging container, wherein a sum of an angle of the inclined portion with respect to the bottom plate and an angle of the folded portion with respect to the top plate is less than 90 °.   The packaging container according to claim 2, wherein an angle of the inclined portion with respect to the bottom plate and an angle of the folded portion with respect to the top plate are both less than 60 °. The inclined portion is linear,
The packaging container according to claim 1, wherein a sum of an angle of the inclined portion with respect to the bottom plate and an angle of the folded portion with respect to the top plate is 30 ° to 60 °.   5. The packaging container according to claim 4, wherein an angle of the inclined portion with respect to the bottom plate and an angle of the folded portion with respect to the top plate are 10 ° to 40 °, respectively.   The packaging container according to any one of claims 2 to 5, wherein an angle of the inclined portion with respect to the bottom plate is smaller than an angle of the folded portion with respect to the top plate.   The packaging container according to any one of claims 1 to 6, wherein an opening side edge of the folding piece is linearly connected to an opening side edge of the side plate in the vicinity of the folding piece.

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