JP6785080B2 - Packaging container - Google Patents

Description

The present invention relates to a food packaging container.

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

JP-A-2007-210660

At convenience stores, cooked foods such as fried foods and grilled foods are stored in display cases called hot warmers, and are packaged and sold according to the wishes of the purchaser. Then, there is a desire to store these cooked foods in a packaging container in advance, display the foods in a visible state, and sell them promptly according to a purchase request.

Since the packaging container disclosed in Patent Document 1 usually uses paper or a paper coated with a resin as a sheet material, the food inside becomes invisible when the lid is closed. On the other hand, in such a packaging container, in a state where the lid portion is opened, the opening of the lid portion is rotated by 180 ° from the opening of the container portion via the hinge portion so that a large number of such packaging containers can be easily stacked after assembly. , 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 is opened 180 °, the lid is bulky in the display case, and the number of foods that can be displayed is limited. is there.

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

The present invention is a packaging container in which the container portion and the lid portion can be opened and closed via a hinge portion.
The container portion has a bottom plate, a lower front plate and a lower rear plate arranged around the bottom plate, and left and right lower plates.
It said lid portion has a top plate, a side plate on the right and left front plate and the upper rear plate on which is disposed around the top plate, and
In the packaging container and the opening-side edge of the previous SL lower rear plate, and the opening-side edge of the previous SL upper rear plate constituting said hinge portion,
Open-side edge of the previous SL lower side plate is, at least in the lower rear plate side, an inclined portion inclined to the bottom plate side to the lower rear plate side from the lower front plate side,
With the lid open, in the opening of the lid, the opening-side end of the upper plate protrudes from the opening-side end of the upper and rear plates.
Before SL on the side plates, on said rear plate side of the opening side, through a linear folding portion towards the sides from the opening-side edge has a folding piece foldable into the opening of the lid, the The folded portion and the folded piece are formed in a region on the opening side of the upper plate that protrudes from the opening side end side of the upper rear plate.
When the folded piece is bent so as to protrude into the opening of the lid in the folded portion with the lid open and rotated in the closing direction of the lid, the folded piece is tilted. It is characterized in that it comes into contact with a portion .

In the present invention, the following configuration is included as a preferred embodiment.
(1) The inclined portion is linear and
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 and
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 of the above (1) to (4), the angle of the inclined portion with respect to the bottom plate is smaller than the angle of the folded portion with respect to the top plate.
(6) with open the lid, and, in a state before folding the folding piece to the opening side of the lid, the opening-side edge of the folding piece, of the upper side plate of the folding piece vicinity It is connected in a straight line to the edge on the opening side.
(7) When the folded piece is bent so as to protrude into the opening of the lid with the lid open and rotated in the closing direction of the lid, the folded piece becomes the inclined portion. Contact.

According to the present invention, when the folding piece provided on the lid portion is bent inward, the folding piece protrudes into the opening of the lid portion and the lid portion is rotated toward the container via the hinge portion. It is possible to maintain a state in which the folded piece comes into contact with the inclined portion of the opening end of the container portion and an appropriate gap is formed between the opening of the lid portion and the opening of the container portion. Therefore, it is possible to display the product without being bulky with the lid part closed halfway so that the inside can be seen. 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 holding down the lid portion, and the lid portion can be easily closed.

Therefore, according to the present invention, the food stored in the container can be displayed without being bulky in a visible state, and the lid can be closed instantly to provide the food to the purchaser, so that the food can be sold quickly. Is possible.

It is a development 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 the folding piece of the packaging container of FIG. 1 was bent inward and protruded into the opening of a lid part, (a) is a perspective view, (b) is a side view. It is a figure which shows the state which the folding piece of the packaging container of FIG. 1 was bent inward, and the lid part was closed halfway in the state which protruded into the opening of the lid part, (a) is a side view, (b) is a figure. It is an end view of AA'in (a). It is a figure which shows the state which the folding piece of the packaging container of FIG. 1 is folded between the side plate of a lid part and the side plate of a container part, and the lid part is completely closed, (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. Also, in the drawings referenced below, the same reference numerals indicate similar components.

1 and 2 are explanatory views of a packaging container according to a preferred embodiment of the present invention, FIG. 1 is a developed view of the packaging container, FIG. 2A is a perspective view of the packaging container, and FIG. (B) is a side view of the packaging container. The alternate long and short dash line in FIG. 1 indicates a valley fold, and the broken line will be described later.

The packaging container of the present invention can be formed by bending a sheet material having a notch as shown in FIG. 1 and appropriately adhering it. The sheet material used in the present invention may be any material having appropriate flexibility so that the folding piece described later can be easily folded and folded, and conventionally used paper, resin sheet, and the like. Alternatively, a paper surface coated with a resin is preferably used.

In the packaging container of the present invention, as shown in FIGS. 1 and 2, the container portion 10 and the lid portion 20 are configured to be openable and closable via the hinge portion P.

In the container portion 10, the front plate 2, the rear plate 3, and the pair of side plates 4, 4'are connected to the four sides of the bottom plate 1 via folds, and the lid 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 to each other via the above. In the following description, the front plate 2, the rear plate 3, and the side plates 4, 4'of the container portion 10 are described as the lower front plate 2, the lower rear plate 3, and the lower side plates 4, 4', and the lid portion 20 The front plate 22, the rear plate 23, and the side plates 24, 24'are described as the upper front plate 22, the upper rear plate 23, and the upper plates 24, 24'.

In the present embodiment, the lower front plate 2 of the container portion 10 is connected to the left and right attachment pieces 5, 5'via the folding portion, and the attachment pieces 5, 5'are connected to each other via the folding portion. It is bent inward and adhered to the inside of the lower plates 4, 4', and the lower front plate 2 and the lower plates 4, 4'are integrally fixed. Further, the sticking pieces 6 and 6'are also connected to the left and right sides of the lower rear plate 3 via the folding portion, and the sticking pieces 6 and 6'are bent inward via the folded portion and lowered. The lower rear plate 3 and the lower plate 4, 4'are integrally fixed to the inside of the side plates 4, 4'. As a result, the lower front plate 2, the lower rear plate 3, and the lower plates 4, 4 ′ form the side wall of the container portion 10.

Further, in the present embodiment, the upper plates 24 and 24'of the lid portion 20 are connected to the upper front plate 22 side via the folding portions, respectively, and the attachment pieces 25 and 25'are connected to each other. , 25'are bent inward through the folded portion and adhered to the inside of the upper front plate 22, and the upper front plate 22 and the upper plates 24, 24'are integrally fixed. Further, the sticking pieces 26 and 26'are also connected to the left and right sides of the upper and rear plate 23 via the folding portions, and the sticking pieces 26 and 26'are bent inward through the folded portions and above. The upper rear plate 23 and the upper plate 24, 24'are integrally fixed to the inside of the side plates 24, 24'. As a result, the upper front plate 22, the upper rear plate 23, and the upper plates 24, 24 ′ form 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 plates 4 and 4'are all widened from the bottom plate 1 side toward the opening side, and the container portion 10 is extended from the bottom plate 1 toward the opening side. The opening area is widening. Further, in the lid portion 20, the upper front plate 22, the upper rear plate 23, and the upper plates 24, 24'are all extended from the top plate 21 toward the opening side, and the lid portion 20 is from the top plate 21 to the opening side. The opening area is expanding toward. The present invention is not limited to the form in which the opening side of the container portion 10 and the lid portion 20 is widened as described above, but at least the opening of the lid portion 20 is wider than the opening of the container portion 10 to close the lid portion 20. At that time, the opening side of the container portion 10 is inserted into the lid portion 20, and after the lid portion 20 is closed, there is no possibility that foreign matter is mixed inside. Further, at least for the lid portion 20, since the opening area expands from the top plate 21 toward the opening side, the opening side of the container portion 10 can be easily inserted into the lid portion 20 when the lid portion 20 is closed. can do.

In the present invention, the opening side end side of the lower rear plate 3 of the container portion 10 and the opening side end side of the upper rear plate 23 of the lid portion 20 are connected to form the hinge portion P. In the present embodiment, a notch 41 for separating the lower rear plate 3 and the upper rear plate 23 is formed at the connecting portion between the upper rear plate 23 and the lower rear plate 3, and the notch 41 makes the connecting portion of the connecting portion. The strength is weakened. As a result, the lid portion 20 can be opened 180 ° with respect to the container portion 10, and a large number of packaging containers can be laminated in the vertical direction. Further, by adjusting the strength of the hinge portion P, the lid portion 20 can easily rotate with respect to the container portion 10.

In the present invention, the opening side ends 4a, 4a'of the lower plates 4, 4'of the container portion 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, and the bottom plate 1 It has inclined portions 4b and 4b'inclined to the side. In the present embodiment, the inclined portions 4b and 4b'are linear. Further, the upper plates 24, 24'of the lid portion 20 are linearly folded portions 24d, 24d'toward the side sides 24b, 24b'from the opening side end sides 24a, 24a' on the opening side upper rear plate 23 side. It has folding pieces 24c and 24c'that can be folded inward via the above. The folded pieces 24c and 24c'protrude into the opening of the lid 20 by bending inward through the folded portions 24d and 24d'. Further, the opening side end side 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. 2 (a) and 2 (b), the packaging container of the present invention is in a state in which the container portion 10 and the lid portion 20 are opened by 180 ° via the hinge portion P before use. Here, when the folding pieces 24c and 24c'are folded inward at the folding portions 24d and 24d', the folding pieces 24c and 24c' are covered with the folding portions 24d and 24d' as shown in FIG. 3A. It protrudes into the opening of the portion 20. 3 (b) is a side view of a folded state folding piece 24c, the 24c 'inwardly, when viewed from the outside of the upper plate 24 and lower plate 4 side, folding piece 24c is no longer observed ..

As shown in FIGS. 3 (a) and 3 (b), when the lid portion 20 is rotated toward the container portion 10 with the folding pieces 24c and 24c'bent inward, as shown in FIG. 4 (b). The folding pieces 24c and 24c'protruding into the opening of the lid portion 20 abut on the inclined portions 4b and 4b'on the opening side of the lower plates 4 and 4'of the container portion 10 and are shown in FIG. 4 (a). As described above, the rotation of the lid portion 20 is stopped at a position where there is a gap between the opening of the container portion 10 and the opening of the lid portion 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 bent inward at the folded portions 24d and 24d', and the folded pieces 24c and 24c' are inclined in the container portion 10. If the lid portion 20 is rotated until it comes into contact with the portions 4b and 4b', the food in the container portion 10 can be displayed in an observed state. Further, in this state, since the lid portion 20 is rotated halfway and arranged on the container portion 10, the lid portion 20 is more than the state shown in FIGS. 2 (a) and 2 (b) when the lid portion 20 is completely opened. Is not bulky. Note that FIG. 4A is a side view, FIG. 4B is an end view of AA'in (a), and the end surface of AA'in (a) is a solid line in (b). Indicated by.

In the present invention, as shown in FIGS. 4A and 4B, the inclined portion 4b, shown in FIG. 2B, is used to keep the inside of the container portion 10 observable. The sum of the angle θ1 with respect to the bottom plate 1 of 4b'and the angle θ2 with respect to the top plate 21 of the folding portions 24d, 24d' for bending the folding pieces 24c, 24c', that is, the top plate shown in FIG. 4A. The angle θ3 formed by the 21 and the bottom plate 1 is preferably less than 90 °. When the sum of θ1 and θ2, that is, θ3 becomes 90 ° or more, the rotated lid portion 20 may rotate in the opposite direction again to return to the states shown in FIGS. 2A and 2B.

Further, in the present invention, it is preferable that θ1 and θ2 shown in FIG. 2B are each less than 60 °. Further, 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 this range, θ1 and θ2 are respectively. It is preferably 10 ° to 40 °.

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

In the embodiment of FIGS. 1 to 4, the inclined portions 4b and 4b'are linear, but in the present invention, the inclined portions 4b and 4b'are not limited to the linear shape and are convex or concave. It may have a curved shape or a stepped shape. Even in that case, it is desirable that θ3 is less than 90 ° in the state of FIG. 4A. From the viewpoint of ease of manufacturing and manufacturing accuracy, the inclined portions 4b and 4b'preferably linear.

Further, in the above embodiment, the inclined portions 4b, 4b'are located on the lower rear plate 3 side of the lower plate 4 from a position closer to the lower rear plate 3 side than the center of the opening end of the lower plates 4, 4'. Although it is formed toward the side, in the present invention, it is sufficient that the end portion on the lower rear plate 3 side reaches the side side on the lower rear plate 3 side, and the end portion on the opening end side is the lower side plate. The lower front plate 2 side may be closer to the center of the opening end of 4, and the opening side end sides 4a, 4a'of the lower plate 4 may all be inclined portions 4b, 4b'.

Further, when the folded pieces 24c and 24c'are bent at the folded portions 24d and 24d' and 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. It suffices if it is formed so as to be in contact with the fold pieces, but preferably, the opening side ends 24e, 24e'of the fold pieces 24c, 24c' are in the vicinity of the fold pieces 24c, 24c', and the upper plates 24, 24 It is formed so as to be linearly connected to the opening side ends 24a and 24a of'. As a result, when the lids 20 of FIGS. 2A and 2B are open, the folding 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. It is possible to prevent the folding pieces 24c and 24c'from being inadvertently bent at the time of handling or handling.

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

In the present invention, the folding portions 24d and 24d'for bending the folding pieces 24c and 24c'can be easily folded by making perforated cuts or making a half cut. preferable.

Further, in the present embodiment, as shown in FIG. 1, two linear and parallel notches 42, 42'are formed over the top plate 21 of the lid portion 20 and the upper rear plate 23. This is for forming a vent for exhausting the steam generated from the food inside to the outside after the lid portion 20 is completely closed, and the folding portion 43a connecting both ends of the cuts 42 and 42'. , 43a'is valley-folded, and the folded portion 43b connecting the centers of the cuts 42, 42' in the length direction is mountain-folded to form a rectangular vent.

Further, in the present embodiment, locking pieces 4c and 4c'protruding outward are provided on the opening side of the side side of the lower front plate 2 side of the lower plates 4 and 4'of the container portion 10 and the lid portion 20 is provided. The attachment pieces 25, 25'connected to the upper front plate 22 side of the upper plates 24, 24'are provided with locking pieces 25a, 25a'protruding outward from the left and right side sides of the upper front plate 22. ing. With this configuration, when the lid 20 is completely closed, as shown in FIG. 5A, the locking pieces 25a and 25a'are locked below the locking pieces 4c and 4c', and the lid is closed. The portion 20 is fixed so that it does not open naturally. Since the locking pieces 25a, 25a', 4c, and 4c'are easily deformed, the locking can be easily released by simply pulling up the recess 22a provided in the upper front plate 22 with a finger. , 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 portion 10 can be seen and the lid portion 20 is not bulky, but the folding pieces 24c and 24c'are bent. If the lid 20 is closed without closing, it can be used in the same manner as a conventional packaging container. Therefore, the packaging container of the present invention is not limited to the form in which the food stored in the container is displayed and sold in a visible state, and can be widely used as a packaging container for food.

Further, in the packaging container of the present invention, food is stored in the container portion 10 at the food cooking site, and the folded pieces 24c and 24c'are transported to the store with the lid portion 20 closed without bending, and the lid portion is transported in the store. It is also possible to open 20 and raise the folded pieces 24c and 24c'by 90 ° to project them into the opening of the lid 20 so that the food can be seen and displayed.

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': Inclined portion, 4c, 4c': Locking piece, 5,5', 6,6': Adhesive 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 end side of upper plate, 24b, 24b': Side side of upper plate, 24c, 24c': Folded piece, 24d, 24d': Folded part, 24e, 24e': Folded piece Opening side edge, 25, 25', 26, 26': Adhesive piece, 25a, 25a': Locking piece, 41, 42, 42': Notch, 43a, 43a', 43b: Folded part, P: Hinge part

Claims (8)

A packaging container in which the container and lid can be opened and closed via a hinge.
The container portion has a bottom plate, a lower front plate and a lower rear plate arranged around the bottom plate, and left and right lower plates.
It said lid portion has a top plate, a side plate on the right and left front plate and the upper rear plate on which is disposed around the top plate, and
In the packaging container and the opening-side edge of the previous SL lower rear plate, and the opening-side edge of the previous SL upper rear plate constituting said hinge portion,
Open-side edge of the previous SL lower side plate is, at least in the lower rear plate side, an inclined portion inclined to the bottom plate side to the lower rear plate side from the lower front plate side,
With the lid open, in the opening of the lid, the opening-side end of the upper plate protrudes from the opening-side end of the upper and rear plates.
Before SL on the side plates, on said rear plate side of the opening side, through a linear folding portion towards the sides from the opening-side edge has a folding piece foldable into the opening of the lid, the The folded portion and the folded piece are formed in a region on the opening side of the upper plate that protrudes from the opening side end side of the upper rear plate.
When the folded piece is bent so as to protrude into the opening of the lid in the folded portion with the lid open and rotated in the closing direction of the lid, the folded piece is tilted. A packaging container characterized by abutting on a portion . The inclined portion is straight and
The packaging container according to claim 1, wherein 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 °. The packaging container according to claim 2, wherein 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 °. The inclined portion is straight and
The packaging container according to claim 1, wherein 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 °. The packaging container according to claim 4, wherein 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. The packaging container according to any one of claims 2 to 5, wherein the angle of the inclined portion with respect to the bottom plate is smaller than the angle of the folded portion with respect to the top plate. With open said lid, and said in a state before folding the folding piece to the opening side of the lid, the opening-side edge of the folding piece, the opening side end of the upper side plate of the folding piece vicinity The packaging container according to any one of claims 1 to 6, wherein the packaging container is linearly connected to the sides. The packaging container according to any one of claims 1 to 7, wherein the folded portion is provided with a perforated cut or a half cut.

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