JP2005082210A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container which is manufactured in such a manner that a prescribed part of a plate-like blank is bent, and which can be stably stacked on a top wall. <P>SOLUTION: This packaging container A1, which is manufactured in such a manner that the prescribed part of the plate-like blank is bent, can be stacked on the top wall 21. The top wall 21 is provided with an anti-displacement fit-in hole 25 into which at least a part of a bottom of the container A1 to be stacked on the top wall 21 is fitted, and which prevents the displacement of the container A1. The fit-in hole 25 is closed with a film F which overlays the inner surface of the top wall 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a packaging container, and more specifically, for example, packaging suitably used for packaging various foods such as fried noodles such as beef bowl and oyakodon, yakisoba, takoyaki, fried chicken, oden and the like. Related to the container.

  For example, paper trays are widely used as containers for packaging take-out foods. This container is manufactured by bending a predetermined portion of a paper plate blank (see, for example, Patent Documents 1 and 2), and has an advantage that the container can be easily manufactured.

The container is covered with a lid after putting food (packaged goods) inside.
Japanese Patent Laid-Open No. 2002-205732 (Claims 1, 1 and 2) JP 2002-21115 A (Claim 1, FIG. 1)

  However, according to the container described above, since the top wall of the lid is generally flat, even if an attempt is made to stack the container on the cover after the cover is put on, the stacked container is in the horizontal direction (lateral direction). There was a risk that the container would fall due to misalignment, and it was difficult to stably stack the containers. Therefore, at the work site where the food is boxed, after the food is packed in a container, the container must be placed in a plane on the work table, and the boxing operation is performed as the number of containers packed in the box increases. There was a problem that the space was narrowed.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is a packaging container manufactured by bending a predetermined portion of a plate blank, and stably stacking on a top wall. It is to provide what can be done.

  In order to achieve the above object, the present invention provides a packaging container which is manufactured by folding a predetermined portion of a plate-shaped blank and can be stacked on the top wall, on the top wall, on the top wall. A film in which at least a part of the bottom of a container to be stacked is inserted, one or a plurality of insertion holes for preventing displacement of the container are provided, and each insertion hole is laminated at least on the inner surface of the top wall. (Claim 1).

  The packaging container includes a bottom wall, and a plurality of side walls that are provided on the periphery of the bottom wall via folds and bent from the folds in a rising manner with respect to the bottom wall. A plurality of side walls are provided with protrusions projecting downward at lower ends of two or more side walls, and each of the protrusions is formed by bending the side wall from the fold. Each insertion hole is formed by preventing the container from being displaced by inserting the projecting pieces of the container stacked on the top wall into the insertion hole. The film is laminated at least on the inner surface of the top wall, the bottom wall, and the plurality of side walls, and an opening formed in the bottom wall due to the cut and raised formation of the projecting piece is blocked by the film. (Claim 2).

  Further, the film is laminated in a state where it is detachably attached to the inner surfaces of at least the top wall, the bottom wall, and the plurality of side walls, and the inner surface of these walls is in contact with an object to be packaged. It is desirable to prevent contamination due to (claim 3).

  Further, the number of the insertion holes is one, and the insertion holes prevent the displacement of the container by inserting the entire bottom part of the container stacked on the top wall into the insertion hole. (Claim 4).

  In addition, the film is laminated in a state where it is peeled and stuck to at least the inner surface of the top wall, and for preventing contamination due to contact with the packaged object on the inner surface of the top wall. It is desirable (Claim 5).

  Moreover, it is desirable that the film is partially attached in the circumferential direction around each of the insertion holes on the inner surface of the top wall.

  In addition, it is desirable that each of the insertion holes is formed by pressing down the vicinity of the insertion hole forming cut provided in the top wall.

  According to the present invention, since the predetermined hole for preventing the displacement of the container is provided in the top wall, when the container is stacked on the top wall, the predetermined portion of the bottom portion of the container is inserted into the insertion hole. In addition, it is possible to prevent the misalignment of the stacked containers. Therefore, a plurality of containers can be stacked with good stability.

  Further, since the insertion hole is closed by the film, it is possible to prevent foreign dust and dirt from entering the inside of the container from the insertion hole, and furthermore, the heat inside the container escapes to the outside. It becomes difficult and has excellent heat retention. Therefore, for example, when a warm food such as fried noodles or takoyaki is packaged as a packaged item, or when the packaged food is heated in a microwave oven or the like while being packaged, the temperature of the food is kept for a long time. And can be kept warm.

  The packaging container of the present invention comprises a bottom wall, and a plurality of side walls provided on the periphery of the bottom wall via folds and bent from the folds in a rising manner with respect to the bottom wall. When a protruding piece that protrudes downward is provided at the lower end of two or more of the plurality of side walls, the fingers are put on the protruding piece when the container is held by hand. So you can hold the container firmly. Therefore, when the article to be packaged is, for example, food, there is an advantage that it is easy to hold the container when eating and drinking the food contained in the container. Further, when the container is placed on the table, the outer surface of the bottom of the container does not contact the table, that is, there is a gap between the bottom of the container and the table. The movement is prevented and the heat retention is further improved. Therefore, for example, when a warm food such as fried noodles or takoyaki is packaged as a packaged item, or when the packaged food is heated in a microwave oven or the like while being packaged, the temperature of the food is kept for a longer time. It can be kept warm throughout. Furthermore, since the outer surface of the bottom of the container does not contact the table, contamination due to contact with the table on the outer surface of the bottom of the container can be prevented, and the container can be used for regeneration in a clean state.

  Further, when the protruding piece is formed by cutting and raising from a part of the bottom wall by a bending operation from the side wall fold, the side wall is removed from the fold when the plate-shaped blank is assembled into the container. Since the protruding piece is cut and raised by bending, the protruding piece can be easily formed.

  Furthermore, the film is laminated on at least the top wall, the bottom wall, and the inner surfaces of the plurality of side walls, and the opening formed in the bottom wall due to the cut-and-raised formation of the projecting piece is blocked by the film. It is possible to prevent a problem that a part (for example, rice grains or liquid juice) of the packaged items is leaked from the opening.

  In addition, the film is laminated in a state where it is peelably attached to at least the top wall, the bottom wall, and the inner surfaces of the plurality of side walls, and prevents the inner surface of these walls from being contaminated by contact with the package. When the container is used, after the container is used, the film can be peeled off from the inner surfaces of these walls, so that the container can be in a clean state and used for regeneration.

  Further, the number of the insertion holes is one, and the insertion holes are configured to prevent the displacement of the containers by fitting the entire bottom portion of the containers stacked on the top wall into the insertion holes. If so, the size of the insertion hole can be set large. For this reason, the insertion hole is used not only as a hole for preventing the displacement of the container, but also as a window hole for allowing the packaged object packaged in the container to be seen from the outside. be able to.

  In addition, when the film is laminated in a state where it is detachably attached to the inner surface of the top wall, and is for preventing contamination due to contact with the packaged object on the inner surface of the top wall, As above, after use of the container, the film can be peeled off from the inner surface of the top wall to make the container clean and subjected to regeneration.

  In addition, when the film is partially attached in the circumferential direction around the insertion hole on the inner surface of the top wall, the film is easily loosened at the position of the insertion hole. Therefore, when the predetermined part of the bottom part of the container is inserted into the insertion hole, the film is loosened, so that the predetermined part of the bottom part of the container can be reliably inserted into the insertion hole.

  In addition, when the insertion hole is formed by pressing down the vicinity of the insertion hole forming cut provided in the top wall, before inserting the predetermined portion of the bottom of the container into the insertion hole In this state, not the hole (insertion hole) but the cut (insertion hole forming cut) is exposed on the top wall of the container. Therefore, the external appearance of the outer surface of the top wall of the container is improved, and a container having an excellent external appearance can be provided.

  Next, several preferred embodiments of the present invention will be described with reference to the drawings. Note that the packaging container according to the present invention has a relative front / rear / left / right direction, and in the embodiment described below, for convenience of explanation, of the four side walls of the container body (10), a lid (20 ) Is described as “rear side wall (12)”.

  FIGS. 1-7 is a figure for demonstrating the packaging container based on 1st Embodiment of this invention. In FIG. 1, (A1) is the packaging container of the first embodiment.

  The container (A1) is a paper-made container for packaging food (not shown), for example, as a packaged object, that is, a paper-made food packaging container.

  This container (A1) is produced by bending from a single sheet of paper flat blank (1) as shown in a development view in FIG. This blank (1) is obtained by punching a base paper (material) made of long and wide thick paper into a predetermined shape by a press punching device. And the predetermined | prescribed site | part of this blank (1) is bent, and the container (A1) is manufactured.

  As shown in FIGS. 1 and 6, the container (A1) includes a tray-shaped container body (10) having an upper surface opened and a lid (20) that closes the upper surface opening of the container body (10). I have. The lid (20) is provided integrally with the container body (10).

  In this container (A1), on the entire inner surface of the blank (1), that is, the entire inner surfaces of the container body (10) and the lid (20), as shown in FIGS. The film for preventing soiling (F) for preventing soiling due to contact with the substrate) is laminated in a state where it is partly attached so as to be peelable. In FIG. 7, (C) shows the sticking part of the antifouling film (F). As shown in the figure, the sticking portions (F) are scattered over the entire inner surfaces of the container body (10) and the lid (20). In this embodiment, the antifouling film (F) is stuck with a peelable adhesive, whereby the film (F) can be peeled off.

  The antifouling film (F) is made of a transparent plastic rich in water resistance and oil resistance, and is made of, for example, PP, OPP, PE, or PET (for example, a thickness of 20 to 200 μm). In the present invention, the film (F) may be, for example, colorless and transparent, colored and transparent, paper, or antibacterial. Alternatively, it may be made of a biodegradable plastic.

  As described above, this antifouling film (F) is laminated on the entire inner surface of the container body (10) and the lid (20), that is, has the same shape and the same size as the outer contour of the blank (1). Has been. Accordingly, the antifouling film (F) includes portions corresponding to all the constituent portions of the container (A1). In the antifouling film (F), in the blanking step of the blank (1), a peelable adhesive was applied to a predetermined portion of the surface on the surface of the base paper that would be the container inner surface. Later, a long and wide film material is laminated, and in this state, it is laminated together with the blank (1) by a press punching device, thereby being laminated on the entire inner surface of the blank (1). Then, in a state in which the antifouling film (F) is laminated on the entire inner surface of the blank (1), a predetermined part of the blank (1) is folded and assembled into the container (A1), thereby the container ( The corresponding part of the antifouling film (F) is laminated on the inner surface of each constituent part of A1).

  As shown in FIG. 7, the container body (10) includes a polygonal bottom wall (11). In the present embodiment, the bottom wall (11) has a quadrangular shape (in detail, a square shape). . Four peripheral side walls (12) (12) (13) (13) are provided on the periphery of the bottom wall (11) through folds (31) (31) (31) (31). And each side wall (12) (12) (13) (13) is bend | folded diagonally with respect to the bottom wall (11) from the said corresponding fold (31).

  Moreover, in the four side walls (12) (12) (13) (13) of the container body (10), two adjacent side walls (12) (13) are side edges of the side walls (12) (13). A connecting piece (15) comprising a pair of substantially triangular folding halves (15a) (15b) connected to each other via a fold (32) and connected to each other via a folding fold (33). They are connected to each other by being bonded to the outer surface of the left side wall (13) or the right side wall (13) with an adhesive in a state of being folded in half from the folding half fold (33). Each side wall (12) (12) (13) (13) is formed in a substantially inverted trapezoidal shape with the upper side length set larger than the lower side length. By setting in this way, the container (A1) is a so-called tapered container in which each side wall (12) (12) (13) (13) is inclined upward with respect to the bottom wall (11). Has been made.

  A left lid receiving piece (34) and a right lid receiving piece (34) are connected to the upper edge of the left side wall (13) and the right side wall (13) of the container body (10) through a fold (34), respectively. At the same time, the left and right lid receiving pieces (14) are bent outwardly from the fold line (34) (see FIG. 3). On the other hand, a front lid receiving piece (14) is provided on the upper edge of the front side wall (12) via a fold (34), and the front lid receiving piece (14) is inward from the fold (34). It is bent into a protruding shape (see FIG. 4).

  The lid (20) is integrally connected to the upper edge of the rear side wall (12) of the container body (10) via a fold (35). The lid (20) has a flat plate-like and polygonal top wall (21). In the present embodiment, the top wall (21) has a quadrangular shape like the bottom wall (11). The outer surface of the top wall (21) is formed in a substantially flat shape (flat shape). A left ear piece (22) and a right ear piece (22) are connected to the left and right edges of the top wall (21) via a fold (36), respectively. In addition, a front covering piece (23) is connected to the front edge of the top wall (21) through a fold (36).

  As shown in FIG. 3, the left ear piece (22) and the right ear piece (22) of the lid body (20) are in a state in which the lid body (20) is put on the container body (10) (ie, the lid is closed). Are respectively received on the upper surfaces of the corresponding left lid receiving piece (14) and right lid receiving piece (14) of the container body (10). On the other hand, as shown in FIGS. 1 and 4, the front cover piece (23) has a container body (20) covered with the container body (10) (that is, in the closed state). 10) covers the upper part of the outer surface of the front side wall (12). A tongue-like insertion locking piece (24) projects from the front end intermediate portion of the front covering piece (23). On the other hand, a substantially U-shaped cut (18) is provided on the upper part of the front side wall (12) of the container body (10), whereby a holding piece (12a) comprising a portion surrounded by the cut (18). Is formed. When the lid is closed, the insertion locking piece (24) of the front cover piece (23) is inserted and locked in the cut (18), and the front cover piece (23) is held by the pressing piece (12a). By pressing the outer surface, the closed state of the lid (20) is maintained as shown in FIG. In this state where the lid (20) is closed, the outer surface (upper surface) of the top wall (21) of the lid (20) is horizontal.

  As described above, the antifouling film (F) is laminated in a state where it is partly attached to the inner surface of the container body (10) and the lid (20) so as to be peeled off, and the container (A1) Are laminated on the inner surface of all the components. That is, this antifouling film (F) includes the bottom wall (11) of the container body (10), the front and rear side walls (12) (12) (13) (14), the connecting pieces (15) (15) ( 15) (15), lid receiving piece (14) (14) (14), top wall (21) of lid (20), left and right ear pieces (22) (22), front covering piece (23) and plug-in It laminates | stacks in the state stuck on the inner surface of the latching piece (24) so that peeling was possible.

  Thus, as shown in FIGS. 1 and 2, the container (A1) of the present embodiment can be stacked on the top wall (21) of the lid (20) in the closed state. The container (A1) of the embodiment prevents the upper container (A1) from being displaced in the horizontal direction (lateral direction) when another container (A1) is stacked on the top wall (21). Therefore, it is configured as follows.

  That is, in the lid (20), the central portion of the top wall (21) has a substantially oval window hole (in order to allow food packaged in the container (A1) to be seen from the outside ( 26) is provided. Further, a plurality of substantially semicircular or crescent-shaped misalignment insertion holes (25) (25) (25) (25) are provided around the window hole (26) in the top wall (21). Is provided. In the present embodiment, one insertion hole (25) is provided on each of the front, rear, left and right around the window hole (26) in the top wall (21). The insertion hole (25) is formed by inserting a part of the bottom of the upper container (A1) stacked on the top wall (21) (a projecting piece (16) described later) into the insertion hole (25). The positional displacement of the upper container (A1) in the horizontal direction (lateral direction) is prevented.

  Further, the fitting hole (25) and the window hole (26) are closed by a dirt prevention film (F) laminated over the entire inner surface of the top wall (21).

  On the other hand, as shown in FIG. 7, the antifouling film (F) has each insertion hole (25) on the inner surface of the top wall (21) with the insertion hole (25) and the window hole (26) closed. 25) is partially peeled in the circumferential direction in the vicinity of the periphery of (25).

  In the container body (10), as shown in FIG. 1, the lower and right and left side walls (12), (12), (13), and (13) are respectively provided with projecting pieces (16) projecting downward. Yes. Each protruding piece (16) protrudes below the outer surface (lower surface) of the bottom wall (11). When the container (A1) is stacked on the top wall (21), each projecting piece (16) of the upper container (A1) is fitted into the corresponding top wall (21) of the lower container (A1). It is inserted into the hole (25) (see FIG. 2), thereby preventing the displacement of the upper container (A1). Each insertion hole (25) is set to a size that allows the protruding piece (16) to be fitted almost exactly or slightly loosely. Therefore, the protruding piece (16) of the upper container (A1) is inserted into the inserting hole (25). In the state in which is inserted, the projecting piece (16) does not move greatly in the horizontal direction within the insertion hole (25).

  The projecting piece (16) is formed as follows. That is, as shown in FIG. 7, substantially U-shaped protrusions are formed at the peripheral edge of the bottom wall (11), that is, at the front edge, rear edge, left edge and right edge of the bottom wall (11). A piece forming cut (17) is provided. Both ends of each cut line (17) are located in the fold line (31) existing between the corresponding side wall (12) (12) (13) (13) and the bottom wall (11). And by cutting each side wall (12) (12) (13) (13) from the corresponding fold (31) to the bottom wall (11) obliquely rising, the cut (17) is opened, As a result, a projecting piece (16) composed of a portion surrounded by the cut (17) is formed by being cut and raised from the cut (17).

  Thus, as shown in FIG. 5, the projecting piece (16) is cut and raised to form a substantially rectangular opening (28) formed in the peripheral portion of the bottom wall (11) from the removal hole of the projecting piece (16). However, the opening (28) is closed by the antifouling film (F) laminated on the inner surface of the bottom wall (11).

  In FIG. 7, (19) is a substantially U-shaped cut for forming a finger insertion hole. When the container (A1) is discarded, the part (13a) surrounded by the cut (19) The film for preventing soiling (F) is peeled off from the inner surface of the container by pushing it into the container with fingers.

  Next, the usage method of the container (A1) of this embodiment is demonstrated.

  First, before putting food into the container (A1), the side walls (12), (12), (13), and (13) of the container (A1) are formed to rise obliquely with respect to the bottom wall (11). Thus, a large number of containers (A1) can be stacked with the lid (20) opened.

  Next, after the food is placed in the container body (10), the top wall (21) of the lid (20) is folded (35) with the front cover piece (23) folded from the fold (36). The lid (20) is closed and the upper surface opening of the container body (10) is closed, and the insertion locking piece (24) is inserted and locked in the cut (18) to close the lid (20). Keep state. Thereby, a container (A1) will be in the state which packaged the foodstuff. In this packaged state, the outer surface of the top wall (21) of the lid (20) of the container (A1) is substantially horizontal.

  When another container (A1) is stacked on the top wall (21) of the container (A1) in which food is packaged in this way, as shown in FIGS. 1 and 2, each of the upper containers (A1) Insert the protrusion (16) into the corresponding insertion hole (25) of the lower container (A1), and place the upper container (A1) on the outer surface of the top wall (21) of the lower container (A1). Put. By doing so, even if the upper container (A1) tries to move in the horizontal direction, the projecting piece (16) inserted into the insertion hole (25) is caught by the peripheral edge of the insertion hole (25). The container (A1) is not allowed to move in the horizontal direction, thereby preventing the upper container (A1) from being displaced. Further, another container (not shown) is further stacked on the top wall (21) of the upper container (A1). In this way, a plurality of containers (A1) are stacked one after another. Therefore, according to this container (A1), a plurality of containers (A1) can be stacked in a stable manner, and the boxing work space can be effectively utilized.

  Furthermore, according to this container (A1), since the insertion hole (25) is closed by the film (F), external dust, dust and the like enter the container (A1) from the insertion hole (25). In addition, the heat inside the container (A1) is difficult to escape to the outside, and the heat retention is excellent. Therefore, according to this container (A1), for example, when warm food such as fried noodles or takoyaki is packaged, or when the packaged food is warmed in a microwave oven or the like in the packaged state, the temperature of the food is reduced. It can be kept warm for a long time.

  Furthermore, since a downwardly projecting protruding piece (16) is provided at the lower end of each side wall (12) (12) (13) (13) of the container body (10), as shown in FIG. When holding the container (A1) with one hand, you can put your finger on the protruding piece (16), so you can hold the container (A1) firmly like a bowl. Therefore, according to this container (A1), there is an advantage that it is easy to hold the container (A1) when eating and drinking food contained in the container (A1).

  Further, as shown in FIG. 3 and FIG. 4, a projecting piece (16) projecting downward is provided at the lower end of each side wall (12) (12) (13) (13) of the container (A1). Therefore, when the container (A1) is placed on the table (T), the outer surface (lower surface) of the bottom wall (11) of the container (A1) is not in contact with the table (T). A gap (S) is generated between the bottom wall (11) of A1) and the table (T). This gap (S) can prevent the heat of the food in the container (A1) from moving to the table (T), and the heat retention is further improved. Therefore, according to this container (A1), for example, when warm food such as fried noodles or takoyaki is packaged, or when the packaged food is warmed in a microwave oven or the like in the packaged state, the temperature of the food is reduced. It can be kept warm for a longer time. Furthermore, since the outer surface of the bottom wall (11) of the container (A1) does not come into contact with the table (T), contamination due to contact with the table (T) on the outer wall of the bottom wall (11) of the container (A1) is prevented. The container (A1) can be regenerated in a clean state.

  Furthermore, each projecting piece (16) of the container body (10) is placed on the bottom wall (11) by bending operation from the corresponding fold (31) of each side wall (12) (12) (13) (13). The side wall (12) (12) (13) (13) is the corresponding fold (31) when assembling and manufacturing from the blank (1) to the container (A1). By bending from above, each protruding piece (16) is cut and raised, and the protruding piece (16) can be easily formed.

  Furthermore, an opening (28) is formed in the bottom wall (11) by the cut and raised formation of the projecting piece (16). Since this opening (28) is closed by the film (F), the inside of the container (A1) It is possible to prevent a problem that a part of the food packaged in the container (for example, rice grains or liquid juice) leaks from the opening (28).

  Furthermore, the film (F) is laminated in a state of being peelably attached to the inner surfaces of the top wall (21), the bottom wall (11) and the side walls (12) (12) (13) (13), And since it is a film for preventing soiling due to contact with food on the inner surfaces of these walls, that is, an antifouling film, the film (F) is peeled off from the inner surfaces of these walls after use of the container. By separating F) from the container (A1), the container (A1) can be made clean and used for regeneration.

  Further, as shown in FIG. 7, the film (F) is partially adhered in the circumferential direction in the vicinity of the insertion hole (25) on the inner surface of the top wall (21) of the lid (20). The film (F) is easily loosened at the position of the insertion hole (25). Therefore, when the protrusion (16) of the upper container (A1) is inserted into the insertion hole (25) of the lower container (A1), the film (F) is loosened, so that the protrusion (16) is inserted into the insertion hole (25). Thus, the protrusion (16) can be securely inserted into the insertion hole (25).

  8 and 9 are diagrams for explaining a packaging container (A2) according to a second embodiment of the present invention.

  In this container (A2), a plurality of substantially arc-shaped insertion hole forming cuts (29) (29) (29) are formed around the window hole (26) in the top wall (21) of the lid (20). (29) and a fold line (39) connecting both ends of each cut line (29) is provided. In the present embodiment, one cut (29) is provided on each of the front, rear, left and right around the window hole (26) in the top wall (21). Then, as the vicinity of the cut (29) in the top wall (21), a part (29a) surrounded by the cut (29) and the fold (39) is formed as shown in FIG. By pushing down with the projecting piece (16) of A1), the cut (29) is opened to form an insertion hole (25), and as shown in FIG. 9, the projecting piece (16 ) Is inserted.

  Further, as shown in FIG. 8, a fold (40) extending in the horizontal direction is provided at the base end (upper end) of each projecting piece (16).

  Other configurations of the container (A2) are the same as those of the container (A1) of the first embodiment.

  According to this container (A2), in the state before the projecting piece (16) of the container (A2) is inserted into the insertion hole (25), that is, before stacking, the top wall ( In 21), not the hole (insertion hole (25)) but the cut (insertion hole formation cut (29)) is exposed, so the appearance of the outer surface of the top wall (21) of the container (A2) is improved. Thus, the container (A2) having an excellent appearance can be provided.

  Also, since the base end of the projecting piece (16) is provided with a fold (40) extending in the horizontal direction, the projecting piece (16) can be removed from the fold (40) by hand after using the container. When the container (A2) is placed in the recycling collection box or garbage bag by folding it into the wall (11) and fitting into the opening (28), the projecting piece (16) will be attached to the edge of the collection box or the garbage bag. There is an advantage that the container (A2) can be easily placed in a collection box or the like.

  10-12 is a figure for demonstrating the container (A3) for packaging which concerns on 3rd Embodiment of this invention.

  In this container (A3), the center part of the top wall (21) of the lid (20) has a substantially square position shift that prevents the position of the container (A3) stacked on the top wall (21). A preventive insertion hole (25) is provided. The insertion hole (26) has the same shape as the bottom wall (11) of the container (A3) and is slightly larger than the bottom wall (11). By being formed in this way, the insertion hole (25) is formed in the bottom of the container (A3) consisting of the lower ends of the four side walls (12) (12) (13) (13) and the bottom wall (11). Is set to a size that can be fitted almost exactly. Therefore, as shown in FIG. 11, the bottom of the upper container (A3) is inserted into the insertion hole (25) in a state where the entire bottom of the upper container (A3) is inserted into the insertion hole (25). The upper container (A3) is supported at the periphery and does not move horizontally in the insertion hole (25). Further, the insertion hole (25) is closed by a dirt prevention film (F) laminated on the inner surface of the top wall (21).

  On the other hand, as shown in FIG. 12, the antifouling film (F) is placed around the periphery of the insertion hole (25) on the inner surface of the top wall (21) with the insertion hole (25) closed. In the direction, it is partly attached (at 16 points in the figure) so as to be peelable.

  In the container (A3) of the present embodiment, the projecting piece (16) and the opening (28) are provided at the lower ends of the side walls (12) (12) (13) (13) of the container body (20). Not provided.

  Other configurations of the container (A3) are the same as those of the container (A1) of the first embodiment.

  According to this container (A3), the insertion hole (25) is formed by inserting the entire bottom of the upper container (A3) stacked on the top wall (21) into the insertion hole (25). Since the position of the container (A3) is prevented, the size of the insertion hole (25) is set larger than the insertion hole (25) of the container (A1) of the first embodiment. . Therefore, this insertion hole (25) is not only used as a hole for preventing the displacement of the container, but also a window hole for allowing food packaged in the container (A3) to be seen from the outside. It can also be used as (26).

  Although several preferred embodiments of the present invention have been described above, the present invention is not limited to those shown in the above embodiments, and various setting changes can be made.

  For example, the container according to the present invention is not limited to that made of cardboard, and may be made of paper cardboard or plastic, for example.

  In the present invention, the lid (20) and the top wall (21) may be provided integrally with the container body (10) as in the above embodiment, or separate from the container body (10). It may be formed.

  In the present invention, the number of side walls may be four as in the above embodiment, three, five, or six or more. Also good.

  Further, the projecting piece (16) may be provided only on a pair of opposing side walls (for example, the left and right side walls (12) and (12) or the front and rear side walls (13) and (13)) among the plurality of side walls. good.

  Moreover, in this invention, the to-be-packaged goods packaged in a container (A1) (A2) (A3) are not limited to foodstuffs, Other things may be sufficient.

  The packaging container according to the present invention can be particularly suitably used when packaging various foods such as fried foods such as beef bowl and oyakodon, yakisoba, takoyaki, fried chicken, and oden.

It is a perspective view shown in the state in the middle of stacking the packaging container which concerns on 1st Embodiment of this invention. It is a perspective view shown in the state where the container was stacked. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is a perspective view which shows the bottom part of the same container. It is a perspective view which shows the state which hold | maintained the container with the hand. It is the expanded view seen from the inner surface side of the container. It is a perspective view corresponding to Drawing 1 shown in the state in the middle of stacking the packaging container concerning a 2nd embodiment of this invention. It is sectional drawing corresponding to FIG. 3 shown in the state which stacked the said container. It is a perspective view corresponding to Drawing 1 shown in the state in the middle of stacking the packaging container concerning a 3rd embodiment of this invention. It is sectional drawing corresponding to FIG. 3 shown in the state which stacked the said container. It is the expanded view seen from the inner surface side of the container.

Explanation of symbols

A1, A2, A3: Packaging container 1: Blank
10: Container body
11: Bottom wall
12, 13: Side wall
16: Projection
17: Cut for forming protrusion
20: Lid
21: sky wall
25: Insertion hole for preventing container displacement
26: Window hole
28: Opening
29: Cut hole for insertion hole formation F: Antifouling film C: Adhering part S: Gap

Claims (7)

A packaging container (A1, A2, A3) which is manufactured by folding a predetermined part of the plate blank (1) and can be stacked on the top wall (21),
The top wall (21) is provided with one or more insertion holes (25) for preventing displacement of the container into which at least a part of the bottom of the container stacked on the top wall (21) is inserted. And
Each packaging hole (25) is obstruct | occluded by the film (F) laminated | stacked on the inner surface of the said top wall (21) at least. A bottom wall (11), and a plurality of side walls provided on the periphery of the bottom wall via a fold (31) and bent from the fold (31) in a rising manner with respect to the bottom wall (11) (12, 12, 13, 13)
Protruding pieces (16) projecting downward are respectively provided at lower ends of two or more side walls of the plurality of side walls,
Each protruding piece (16) is formed by cutting and raising from a part of the bottom wall (11) by a bending operation from the fold line (31) of the side wall,
Each insertion hole (25) is configured to prevent displacement of the container by inserting the protruding piece (16) of the container stacked on the top wall (21) into the insertion hole (25). Made,
The film (F) is laminated on at least inner surfaces of the top wall (21), the bottom wall (11) and the plurality of side walls (12, 12, 13, 13),
The packaging container according to claim 1, wherein the opening (28) formed in the bottom wall (11) by the cut and raised formation of the projecting piece (16) is closed by the film (F).   The film (F) is laminated in a state where the film (F) is detachably attached to the inner surfaces of at least the top wall (21), the bottom wall (11), and the plurality of side walls (12, 12, 13, 13). The packaging container according to claim 2, which is for preventing contamination due to contact between the inner surface of the wall and the article to be packaged.   The number of the fitting holes (25) is one, and the fitting hole (25) is formed by fitting the entire bottom of the container stacked on the top wall (21) into the fitting hole (25). The packaging container according to claim 1, wherein the container is prevented from being displaced.   The film (F) is laminated in a state where the film (F) is detachably attached to at least the inner surface of the top wall (21), and stains due to contact with an object to be packaged on the inner surface of the top wall (21). The packaging container according to claim 4, which is for prevention.   The packaging according to any one of claims 1 to 5, wherein the film (F) is partially adhered in the circumferential direction around each of the insertion holes (25) on the inner surface of the top wall (21). Container.   Each said insertion hole (25) is formed by pushing down the vicinity (29a) of the insertion hole formation notch (29) provided in the said top wall (21). The packaging container according to any one of 6.

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