JP2009286450A - Container for packaging - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container for packaging on which a lid can be fitted easily and at the same time from which the lid cannot be detached easily. <P>SOLUTION: A folding part 18, which is folded from the upper part to the lower part and the upper end of which is projected to the upper part over a peripheral side frame 2, is provided at a corner part of the container body 1 and a projection 19 which is the upper end side of the folding part 18 and a recess part 41 provided at a corner part of the lid 3, are engaged in a recess-projection engagement so that the lid 3 is mounted to the container body 1 attachably and detachably. By this, engagement force between the container body 1 and the lid 3 is increased, but the recess-projection engagement is not performed at the whole perimeter of the container, so that an inconvenience that the lid 3 is not fit to the container body 1 easily is not produced. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a packaging container suitable for containing food.

  Conventionally, as a packaging container for storing various foods such as bento, sushi, prepared dishes, fresh products such as meat and sashimi, and cooking materials, it has been made of plastic with a food container inside the peripheral frame made of foamed plastic. A packaging container in which a container body is arranged and covered with a transparent lid is known. Since this type of packaging container has a peripheral frame on the outer periphery of the container body, it has an advantage that it looks better than a packaging container consisting of a container body and a lid, and can increase the commercial value. In addition, if the contents are put on a microwave oven to heat the contents, there is an advantage that the handle does not become hot because of the heat insulation provided in the peripheral side frame.

In this type of packaging container, as shown in FIG. 6A, the lid 52 is slightly larger than the peripheral frame 51, so that the lid 52 covers the opening of the container body 50 together with the peripheral frame 51. A concave portion 53 is provided on an outer peripheral portion of the container main body 50 that is attached to the main body 50 and protrudes above the peripheral side frame 51, while a convex portion 54 that engages with the concave portion 53 is provided on the lid 52. A so-called external fitting type in which the lid 3 is detachably attached to the container body 1 by fitting the concave portion 53 and the convex portion 54 is known (Patent Document 1).
JP 2004-83089 A

  However, when the packaging container described in Patent Document 1 is heated with a microwave oven or the like, the lid 52 is heated by steam generated from the food in the container, and the outer peripheral edge of the lid 52 is deformed outward. In such a case, as shown in FIG. 6B, the fitted state may be released.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a packaging container that can be easily fitted while a lid is not easily detached.

  A packaging container according to the present invention is configured to solve the above-described problems, and includes a container main body, a peripheral frame attached so as to surround the container main body, and an opening in each of the container main body and the peripheral frame. In a packaging container comprising a lid that is detachably attached to the container body so as to cover, the container body includes a main body part that constitutes a content storage part, and an outer peripheral part provided along an outer periphery of the main body part And the outer peripheral portion includes a folded portion from the upper side to the lower side whose upper end protrudes upward from the peripheral side frame at the corner portion of the container main body, while the lid includes the main body portion of the container main body. A lid main body part that constitutes the housing part, and a lid outer peripheral part provided along the outer periphery of the lid main body part, and the lid outer peripheral part is a convex that is the upper end side of the folded part at the corner part of the lid With a recess that fits around By the convex portion and the concave portion of the lid of the container body is projection fitting lid is characterized by comprising been configured to be removably attached to the container body.

  According to this structure, it functions so that the convex part of a container main body may be inserted | pinched from the inner side and the outer side, and the recessed part of a lid | cover may fit. Such a fitting structure between the container body and the lid (attachment structure of the lid) is a so-called inner / outer fitting type, so the fitting force is stronger than the conventional packaging container, and the lid is deformed outward from the outer periphery. This prevents the lid from being inadvertently removed. Moreover, if the fitting structure between the container body and the lid of the inner / outer fitting type is provided over the entire circumference of the packaging container, it is difficult to fit the lid by the strength of the fitting force. However, in the present invention, such a problem does not occur because the fitting structure is partially provided. That is, according to the packaging container according to the present invention, it is possible to solve two seemingly contradictory matters such as making it easy to fit the lid, but being difficult to come off.

  Further, in the packaging container according to the present invention, the convex portion of the container body is provided with either one of the convex portion for engagement or the concave portion for engagement at a predetermined location, and the concave portion of the lid is the convex portion for engagement of the container body. Or the structure provided with either the other of the convex part for engagement engaged with any one of the concave parts for engagement, or the concave part for engagement is employable.

  According to such a configuration, when the entire convex portion of the container body and the entire concave portion of the lid are fitted, the engaging convex portion and the engaging concave portion are engaged with each other, so that the attachment state of the lid to the container main body is further improved. It can be reliably maintained.

  Moreover, the packaging container which concerns on this invention can employ | adopt the structure that the folding | returning part of the said container main body becomes gradually low as it goes to the intermediate part of each side of a container main body.

  According to such a configuration, it is possible to make the contents contained in the container easier to visually recognize, and it can be expected that the consumer's willingness to purchase such as bento and side dishes will be improved.

  As described above, according to the present invention, the convex portion provided partially on the container body and the convex portion provided partially on the lid are unevenly fitted, and the fitting structure between the container main body and the lid is a so-called inside / outside. Because it is a fitting type, even if the fitting structure is only partially provided, the fitting force between the container body and the lid is strong, and it is possible to suitably prevent the lid from being inadvertently removed. Moreover, it is possible to satisfy the conflicting effect that the lid can be easily fitted and removed.

  Hereinafter, a packaging container (hereinafter simply referred to as “container”) according to an embodiment of the present invention will be described with reference to the drawings. In addition, it cannot be overemphasized that about the part which is common also in the packaging container which concerns on this embodiment among the description regarding the said conventional packaging container, it can be used as description regarding the packaging container which concerns on this embodiment. Yes. In addition, in the following description, the terms “outward” and “inward” may be used. “Outward” refers to a direction spreading in the horizontal direction when viewed from the center of the container. "" Refers to the direction from the outside toward the center of the container in the horizontal direction. However, the terms “outward” and “inward” include not only the case where they coincide with the horizontal direction, but also the direction in which they are inclined within a certain angle range.

  FIG. 1 shows a plan view of a container according to this embodiment. The container includes a container body 1, a peripheral side frame 2 that is attached to the outer periphery of the container body 1 so as to surround the outer periphery of the container body 1, and a lid 3 that is detachably attached to the container body 1. In other words, the container is configured such that the container main body 1 is provided inside the peripheral frame 2 and the container main body 1 is covered with the lid 3. In FIG. 1, only a part of the lid 3 (the upper right quarter region) is shown, and the rest is not shown. Accordingly, the upper right quarter of FIG. 1 is represented with the lid 3 covering the container body 1 and the peripheral frame 2, and the other three quarters of the state without the lid 3. That is, the container body 1 and the peripheral frame 2 are exposed.

  The container is a so-called rectangular container that forms a substantially rectangular parallelepiped in a closed state, that is, in a state where the lid 3 is attached to the container body 1. Therefore, the container has a quadrangle (rectangle) in plan view, and all of the container main body 1, the peripheral frame 2, and the lid 3 have a quadrangle in plan view. Strictly speaking, however, the corners of the container are not round but rounded. In this embodiment, a fitting structure between the container main body 1 and the lid 3 is employed at the corner portions (four corners of the container), and the lid 3 can be detachably attached to the container main body 1. This will be described later.

  The container body 1 and the lid 3 are formed by molding a plastic sheet (synthetic resin sheet). As the plastic, for example, a material such as polypropylene (PP), polyethylene terephthalate (PET), or polystyrene (PS) is used. It is done. The container body 1 may be colored and opaque, and the lid 3 is preferably transparent in that the contents can be visually recognized through the lid 3. On the other hand, the peripheral frame 2 is formed by bending a foamed plastic strip-like material into a quadrangle (square) along the outer peripheral edge of the container body 1 and fixing the ends with an adhesive. The peripheral frame 2 may be decorated with a grain or the like on the outer surface in order to create a high-class feeling.

  The size of the lid 3 is configured to be the same as or slightly larger than the size of the peripheral side frame 2, and the outer peripheral edge of the lid 3 is configured to project outside the peripheral side frame 2. In addition, the outer peripheral edge is not shown in the figure, but by applying fine uneven processing and embossing by pressing, the outer peripheral line of a waveform (sine wave, triangular wave, trapezoidal wave, etc.) in side view, that is, an outer edge that is not a straight line It comes to have a line. By these, since the sharpness of the edge of the outer periphery of the lid | cover 3 is eliminated, the fingertip at the time of opening and closing the lid | cover 3 can be protected, and when wrapping using a packaging film (not shown) The packaging film can be prevented from tearing. Further, the strength of the outer peripheral edge of the lid 3 is increased, and there is an effect of preventing the lid 3 from tearing. It should be noted that a finger hook for opening the lid may be provided on a part of the outer peripheral edge of the lid 3, and various measures for eliminating the sharpness of the edge of the outer peripheral edge are provided on the outer peripheral edge of the container body 1. You may give it.

  FIG. 2 shows an enlarged cross-sectional view (cross-sectional view taken along the line AA in FIG. 1) at the corner portion of the container in which the fitting structure between the container main body 1 and the lid 3 is provided. The container main body 1 is roughly divided into a main body portion 10 that is recessed (downward) to form a food storage portion, and an outer peripheral portion 13 that is provided along the outer periphery of the main body portion 10. The lid 3 is roughly divided into a lid main body portion 30 that swells (upward) and roughly constitutes a food container together with the main body portion 10 of the container main body 1, and the outer periphery of the lid main body portion 30. And a lid outer peripheral portion 34 provided.

  The main body 10 of the container body 1 extends from the outer periphery of the bottom 11 and the outer periphery of the bottom 11 (in more detail, more specifically), and more specifically, a food container that extends upward while inclining so as to bulge outward toward the upper side. And a peripheral wall portion 12 constituting the peripheral wall. The bottom portion 11 further includes a bottom surface portion 11a and an annular recess portion 11b arranged around the bottom surface portion 11a. The peripheral wall portion 12 is connected to the bottom portion 11 at the annular recess portion 11b. Thus, the container body 1 has a flat bottom and a shape in which the cross-sectional area gradually increases upward. Further, the bottom 11 of the container main body 1 is set at a position higher than the lower end of the peripheral frame 2 so as to float the bottom of the container main body 1. Such a configuration is suitable for stacking and mounting the container main body 1.

  The outer peripheral portion 13 of the container body 1 further extends (rises) further from the peripheral wall portion 12, and more specifically, rises 14 that extends upward without inclining, and extends outward (extends) from the stand 14. More specifically, the apex 15 extends outward without being inclined, and extends downward (hangs down) from the apex 15, and more specifically, the drooping portion 16 extending downward without inclining, and the drooping portion 16. It extends outward (projects), and more specifically, includes a mounting portion 17 that extends outward while bending in a stepped manner.

  The hanging portion 16 further faces the upright portion 14 and has a first portion 16a having a height corresponding to the rising portion 14, and extends downward (hangs down) from the first portion 16a, and faces the peripheral wall portion 12. And a second portion 16b. The upper end of the peripheral wall portion 12, that is, the lower end of the standing portion 14 is set at the same or substantially the same height as the upper end of the second portion 16 b of the hanging portion 16, that is, the lower end of the first portion 16 a of the hanging portion 16. Moreover, it is set at the same or substantially the same height as the upper end of the peripheral frame 2.

  Therefore, the upright portion 14, the top portion 15, and the hanging portion 16 constitute a folded portion 18 that is folded back from above in the outer peripheral portion 13 of the container body 1, and the rising portions 14, the top portion 15, and the hanging portion 16 The one portion 16 a constitutes a convex portion 18 a that swells (upward) in the outer peripheral portion 13 of the container body 1, more specifically, a convex portion 18 a that protrudes upward from the peripheral side frame 2. That is, the convex portion 18 a is a part of the folded portion 18, and more specifically, is configured to be positioned on the upper end side of the folded portion 18.

  The attachment portion 17 is provided on the inner wall of the peripheral frame 2. More specifically, the attachment portion 17 is inserted into a slit 21 provided along the circumferential direction at a location above the intermediate location on the inner wall. In order to fix 17, the container body 1 and the peripheral frame 2 are integrated using an adhesive (not shown). The means for integrating the container body 1 and the peripheral frame 2 is not limited to a fixing means such as an adhesive or heat fusion. For example, the mounting portion 17 bites into the inner wall or the slit 21 of the peripheral frame 2. Alternatively, if the attachment portion 17 does not fall off from the slit 21, the peripheral side frame 2 is simply wrapped around the container body 1 without using a fixing means such as an adhesive or heat fusion. You may just attach.

  The lid body portion 30 extends downward (hangs down) from the outer periphery of the ceiling portion 31 and more specifically, the food storage portion that inclines so as to bulge outward toward the lower side and extends downward. The peripheral wall part 32 which comprises this peripheral wall, and the paragraph part 33 extended outward from this peripheral wall part 32 (overhang | projection), and more specifically extended outwardly without inclining. Thus, the lid 3 has a flat ceiling and a shape in which the cross-sectional area gradually increases downward.

  The lid outer peripheral portion 34 extends (rises) upward from the paragraph portion 33, more specifically, an upright portion 35 that extends upward without inclining, and extends (extends) outward from the upright portion 35, more specifically A top portion 36 extending outwardly without being inclined, and extending downward (hanging down) from the top portion 36, more specifically, a hanging portion 37 extending downward without being inclined, and extending outwardly from the hanging portion 37. More specifically, the first flange 38 extends outward without being inclined, and extends downward (hangs down) from the first flange 38, and more specifically extends downward without being inclined. It consists of the 2nd collar part 39, and the edge part 40 (outer peripheral edge of a container) extended outward from this 2nd collar part 39, and more specifically, extending outward, without inclining.

  The leading end of the paragraph 33, that is, the lower end of the standing portion 35 is set at the same or substantially the same height as the base end of the first flange 38, that is, the lower end of the hanging portion 37, and it is It is set at the same or substantially the same height as the upper end of the frame 2. And the standing part 35 is formed slightly higher than the standing part 14 of the container main body 1, and it opposes this standing part 14 in the state close | similar or close to it. The top portion 36 is formed to be slightly wider than the top portion 15 of the container main body 1, and faces the top portion 15 in a state of being close or close thereto. The drooping portion 37 is formed slightly higher than the first portion 16a of the drooping portion 16 of the container body 1 and faces the first portion 16a in a state of being in close proximity or close thereto.

  Therefore, the standing portion 35, the top portion 36, and the hanging portion 37 are recessed portions 41 that are recessed (upward) in the lid outer peripheral portion 34, more specifically, recessed portions that are located above the peripheral side frame 2 and opened downward. 41 is constructed. The concave portion 41 is externally fitted to the convex portion 18 a of the container main body 1, in other words, the convex portion 18 a of the container main body 1 is fitted into the concave portion 41 of the lid 3, so that the lid 3 is detachable from the container main body 1. Attached to.

  The convex portion 18a of the container body 1 includes an engaging convex portion 19 that swells (inward), while the concave portion 41 of the lid 3 includes an concave concave portion 42 that is concave (inward). The engaging recess 42 is adapted to engage with the engaging protrusion 19 in a state where the lid 3 is attached to the container body 1 and the recess 41 of the lid 3 is externally fitted to the protrusion 18 a of the container body 1. Yes. In addition, since the engaging convex portion 19 and the engaging concave portion 42 engage with each other in the direction intersecting the attaching / detaching direction of the lid 3 with respect to the container body 1 (or the uneven fitting), The structure is such that it cannot be easily removed. Therefore, while the convex part 18a of the container body 1 provided with the engaging convex part 19 has a function as a fitting convex part, the concave part 41 of the lid 3 provided with the engaging concave part 42 serves as a fitting concave part. Such a fitting structure (attachment structure of the lid) between the container body 1 and the lid 3 is a so-called inside / outside fitting type.

  The engagement convex portion 19 and the engagement concave portion 42 will be described in more detail. The engagement convex portion 19 is formed such that a portion on the top portion 15 side of the upright portion 14 protrudes toward the center side of the container body 1, and the outer surface. While the side functions as the engaging convex portion 19, the engaging concave portion 42 is formed so that a portion on the top portion 36 side of the standing portion 35 protrudes toward the center side of the lid 3 (the same as the central side of the container body 1). Thus, the inner surface side functions as the engaging recess 42. In other words, the engaging convex portion 19 is formed such that the inner side wall (standing portion 14) of the convex portion 18a swells inward, while the engaging concave portion 42 is formed of the concave portion 41. The inner side wall (standing portion 35) is formed so as to be recessed inward (center side of the lid 3), and the bulge of the engaging convex portion 19 is engaged with the concave portion of the engaging concave portion 42. The lid 3 is integrated.

  Such internal / external fitting can be grasped from a different perspective. That is, it can be considered that the concave portion 41 is not formed with the engaging concave portion 42 but is similarly formed with the engaging convex portion 43. Then, the engaging convex portion 43 of the concave portion 41 of the lid 3 is locked to the engaging convex portion 19 of the convex portion 18 a of the container main body 1 located above the convex portion 18 a of the container main body 1. It can also be considered that the concave and convex portions 41 of the lid 3 are concavo-convexly fitted.

  The engaging convex portion 43 of the concave portion 41 will be described in more detail. The engaging convex portion 43 swells (outward) from the concave portion 41 of the lid 3. That is, the engaging convex portion 43 is formed such that a portion of the standing portion 35 on the side of the paragraph portion 33 protrudes toward the side opposite to the center side of the container body 1, and the inner surface side functions as the engaging convex portion 43. In other words, the engaging convex portion 43 is formed such that the inner side wall (standing portion 35) of the concave portion 41 swells outward, and the bulging of the engaging convex portion 43 is the engaging convex portion 19. The container body 1 and the lid 3 are integrated with each other by overcoming the bulge and being locked to the engaging convex portion 19 from above.

  The first flange 38 faces the upper surface of the peripheral frame 2 and overlaps the upper surface, and the second flange 39 faces the outer surface on the upper end side of the peripheral frame 2 and the outer surface. Therefore, the outer peripheral edge 44 including the first flange 38, the second flange 39, and the edge 40 is covered on the upper end of the peripheral frame 2. Thereby, not only the opening of the container body 1 but also the opening of the peripheral side frame 2 can be completely covered by the lid 3 (the outer peripheral edge 44 thereof). Various measures for eliminating the sharpness of the edge of the outer periphery of the lid 3 described above are applied to the edge 40.

  By the way, the convex part 18a (part protruding upward from the peripheral frame 2) of the container body 1 is intentionally provided at the corner parts (four corners of the container body 1) of the container body 1 as shown in FIG. is there. Therefore, the convex part 18a is small or missing in the intermediate part of each side of the container main body 1. More specifically, the convex portion 18a at the corner portion of the container body 1 has a constant shape within a predetermined range, but when it deviates from the convex portion 18a, the convex portion 18a gradually decreases toward the middle portion of each side. In other words, it is not formed in the middle of each side. This is on either the long side (same figure (a)) of the container main body 1, or the short side (same figure (b)).

  In other words, the upper end side of the folded portion 18 of the container body 1 (the portion connecting the body portion 10 of the container body 1 and the mounting portion 17 of the container body 1) is a predetermined range of the corner portion of the container body 1 However, when it deviates from it, it gradually becomes lower toward the middle part of each side, becomes the lowest at the middle part of each side, and is the same or substantially the same height as the upper end of the peripheral frame 2. It becomes the position. This is on either the long side (same figure (a)) of the container main body 1, or the short side (same figure (b)).

  Further, the engaging convex portion 19 and the engaging concave portion 42 (engaging convex portion 43) are also formed along the side, and are formed only at the corner portion of the container body 1 or the lid 3 (see FIG. 1). Note that a pair of the engaging convex portion 19 and the engaging concave portion 42 (engaging convex portion 43) are provided on each of the two sides that intersect each other in each corner portion.

  The container according to the present embodiment has the above-described configuration, and has an inner / outer fitting structure in which the container body 1 and the lid 3 are partially fitted, so that the fitting force is stronger than the conventional container, The lid 3 has a structure that is not easily deformed by heat or the like. Moreover, since the inner / outer fitting structure is not provided over the entire circumference of the container body 1 and the lid 3, there is a problem that the lid 3 is difficult to be fitted or removed due to the strength of the fitting force. It does not occur. That is, according to the container according to the present embodiment, two seemingly contradictory matters such as making the lid 3 easy to fit but difficult to come off are solved by a simple configuration, and even when heated in a microwave oven, it is inadvertent Can be extremely useful.

  Moreover, the paragraph part 33 in the corner part is not formed in the intermediate part of each side of the container main body 1, and the paragraph part 33 is absorbed by the peripheral wall part 32. Therefore, in the intermediate part of each side of the container main body 1, the inclination of the surrounding wall part 32 is gentle, and the front-end | tip protrudes outward. In this respect, the appearance at the corner portion of the container and the appearance at the intermediate portion of each side of the container are greatly different, and the overall design can be made novel.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

  For example, in the above-described embodiment, the engaging convex portion 19 and the engaging concave portion 42 are provided at the end portions (specifically, the upper end portion) of the convex portion 18 a of the container body 1 and the concave portion 41 of the lid 3. However, as shown in FIG. 4A, it may be provided in the middle. Moreover, in the said embodiment, although the convex part 19 for engagement is provided in the convex part 18a side of the container main body 1, and the recessed part 42 for engagement is provided in the concave part 41 side of the lid | cover 3, as shown in the figure, a container main body is provided. The engaging concave portion 19 ′ may be provided in one convex portion 18 a and the engaging convex portion 42 ′ may be provided in the concave portion 41 of the lid 3.

  Moreover, in the said embodiment, while providing the convex part 19 for an engagement in the inner side wall (stand part 14) among the convex parts 18a of the container main body 1, the inner side wall (stand part) among the recessed parts 41 of the lid | cover 3 is provided. 35), the engaging recess 42 '' may be provided on the outer side wall as shown in FIG. 4B.

  Moreover, in the said embodiment, although the hanging part 16 of the container main body 1 is suspended to the middle part of the circumferential frame 2, it is made to fix to the slit 21 provided in the inner wall of this circumferential frame 2, but FIG. As shown in (c), the hanging part 16 'is extended to the lower surface of the circumferential frame 2, and the previous mounting portion 17' of the hanging part 16 'is attached to the lower surface of the circumferential frame 2 by fixing means such as heat fusion. You may do it.

  Moreover, in the said embodiment, although the convex part 18a of the container main body 1 provided with the convex part 19 for engagement and the concave part 41 of the lid | cover 3 provided with the concave part 42 for engagement are fitted, a convex part and a recessed part are used. However, the structure is not limited to this. For example, as shown in FIG. 5, the inner and outer fitting may be performed by the convex portion 18 a ′ and the concave portion 41 ′ in which the proximal end side is narrow (the distal end side is wide) without providing the engaging convex portion and the engaging concave portion. Good. In addition, what is shown to the figure (a) is an example which narrows the base end side of convex part 18a 'and concave part 41' by inclining the outer side wall of convex part 18a 'and concave part 41', respectively. The example shown in FIG. 5B is an example in which the proximal side of the convex portion 18a ′ and the concave portion 41 ′ is narrowed by inclining the inner side walls of the convex portion 18a ′ and the concave portion 41 ′. is there.

The top view of the container for packaging concerning one embodiment of the present invention is shown. FIG. 2 is a sectional view taken along line AA in FIG. 1. (A) is a B arrow view of FIG. 1, (b) is a C arrow view of FIG. (A)-(c) shows the principal part expanded sectional view of the packaging container which concerns on other embodiment of this invention, respectively. (A)-(b) shows the principal part expanded sectional view of the container for packaging which concerns on further another embodiment of this invention, respectively. It is a principal part expanded sectional view of the conventional packaging container, Comprising: (a) is a closed state, (b) is a state where the outer periphery of the lid has been deformed outward due to heat or the like. Show.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Container main body, 10 ... Main body part, 11 ... Bottom part, 11a ... Bottom surface part, 11b ... Annular recessed part, 12 ... Peripheral wall part, 13 ... Outer peripheral part, 14 ... Standing part, 15 ... Top part, 16 ... Hanging part, 16a ... 1st part, 16b ... 2nd part, 17 ... Mounting part, 18 ... Folding part, 18a ... Convex part (fitting convex part), 19 ... Convex part for engagement, 2 ... Circumferential side frame, 21 ... Slit, 22 ... Adhesive, 3 ... Lid, 30 ... Lid body part, 31 ... Ceiling part, 32 ... Peripheral wall part, 33 ... Paragraph part, 34 ... Lid outer part, 35 ... Standing part, 36 ... Top part, 37 ... Drooping part, 38 ... 1st collar part, 39 ... 2nd collar part, 40 ... edge part, 41 ... recessed part (fitting recessed part), 42 ... recessed part for engagement, 43 ... convex part for engagement, 44 ... outer peripheral edge part

Claims (3)

  In a packaging container comprising a container body, a peripheral side frame that is attached so as to surround the container body, and a lid that is detachably attached to the container body so as to cover the openings of the container main body and the peripheral side frame, The container main body includes a main body portion that constitutes a content storage portion, and an outer peripheral portion that is provided along the outer periphery of the main body portion. The outer peripheral portion is a corner portion of the container main body, and the upper end is a peripheral side frame. On the other hand, the lid is provided along the outer periphery of the lid main body and the lid main body constituting the container for the contents together with the main body of the container main body. A lid outer peripheral portion, and the lid outer peripheral portion includes a concave portion that is fitted to a convex portion on the upper end side of the folded portion at the corner portion of the lid, and the convex portion of the container body and the concave portion of the lid are uneven. By fitting, the lid becomes a container book Packaging containers, characterized by comprising configured for being removably attached to.   The convex portion of the container body includes either one of an engaging convex portion or an engaging concave portion at a predetermined location, and the concave portion of the lid engages with either the engaging convex portion or the engaging concave portion of the container body. The packaging container according to claim 1, comprising either the engaging convex portion or the engaging concave portion to be engaged.   The packaging container according to claim 1 or 2, wherein the folded portion of the container body is configured to gradually become lower toward an intermediate portion of each side of the container body.

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