CN111295341A - packaging container - Google Patents

Abstract

Among the four corners of the rectangular container body (3) and the lid, at least one corner is used as the target corner (1X), and the target corner (1X) is used as the opening area (11), and the main body peripheral wall (32) The part corresponding to the object corner (1X) is provided with an inner peripheral edge (32A) that protrudes toward the inside of the container, and the inverted cone part (35) of the main body is engaged with the inverted cone part of the cover. The closing parts are respectively arranged in the opening area (11) so as to cover substantially the entire opening area (11), and are independently arranged in the area outside the opening area (11) in the outer periphery of the container, in a rectangular shape. The middle part of at least one of the sides of the container body (3) and the lid body.

Description

packaging container

technical field

The present invention relates to a packaging container having a container body and a lid.

Background technique

For example, the following Patent Document 1 (Japanese Patent No. 6371023) discloses a packaging container (1) in which a main body reverse taper (35) provided on a container body (3) and a lid body (5) are provided. ) of the cover body reverse taper portion (55) is engaged, whereby the container body (3) and the cover body (5) can be firmly fitted. Furthermore, in the packaging container (1) of Patent Document 1, a lid body for gripping when the lid is opened is provided corresponding to the position where the main body reverse taper part (35) and the lid body reverse taper part (55) are engaged. The gripping portion (56) can thereby firmly fit the container body (3) and the lid body (5) as described above, and also has a structure that can be easily opened.

However, a packaging container in which the container body and the lid body are firmly fitted when the lid is closed requires a certain amount of force when the lid is closed, and even if the lid body has a gripping portion so that the lid can be easily opened, due to the When opening the lid, it is necessary to release the fitting of the container body and the lid body, so a certain amount of force is required. Therefore, in such a packaging container, a load is applied when the lid is opened or when the lid is closed, and the container body may be deflected. The deflection of the container body also disturbs the contents contained in the container. For example, as in the packaging container (1) of Patent Document 1, when a container body (3) is provided with a partition wall (38) for partitioning an accommodation portion (37) for accommodating an object to be accommodated, the partition wall (38) 38) The function of reinforcing the container body (3) is exerted, and the deflection of the container body (3) can also be suppressed. However, in this field, such a partition wall is not necessarily provided in the packaging container, and there is room for further improvement in suppressing the deflection of the container body regardless of whether the partition wall is provided or not.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent No. 6371023

SUMMARY OF THE INVENTION

Invention to solve problem

In view of the above-mentioned actual situation, it is desirable to prevent the container body from being flexed when the container body and the lid body are firmly fitted with each other when the lid is opened or closed.

means to solve the problem

The packaging container of the present disclosure includes a container body and a lid, and is formed by sheet metal molding, wherein,

The container body and the lid are formed in a rectangular shape in plan view,

The container main body has a bottom surface portion, a main body peripheral wall portion, a main body flange portion, a main body reverse taper portion, and a main body gripping portion, the main body peripheral wall portion extending upward from the bottom surface portion, and the main body flange portion extending from the bottom surface portion. The main body peripheral wall portion extends outward, the main body reverse taper portion is provided on the peripheral edge side than the main body flange portion, and the main body gripping portion is constituted by a protruding piece protruding outward from the main body flange portion,

The cover body has a top surface portion, a cover body peripheral wall portion, a cover body flange portion, a cover body inverted taper portion, and a cover body gripping portion, the cover body peripheral wall portion extending downward from the top surface portion, and the cover body A flange portion extends outward from the peripheral wall portion of the cover body, the cover body reverse taper portion is provided on a peripheral edge side than the cover body flange portion, and is engaged with the main body reverse taper portion, and the cover body is gripped and pinched The part is composed of a protruding piece that protrudes outward from the flange part of the cover body and overlaps the gripping part of the main body,

The lid opening area where the gripping portion of the main body overlaps with the gripping portion of the lid body is arranged on the outer periphery of the container,

Among the four corners of the rectangular container body and the lid, at least one corner is used as the target corner, and the target corner is used as the lid opening area,

A portion of the peripheral wall portion of the main body corresponding to the corner portion of the object is provided with an inner peripheral edge portion protruding toward the inside of the container,

The inverted taper engaging portion formed by engaging the main body inverted taper portion with the lid body inverted taper portion is provided in the decap region so as to cover substantially the entire lid decap region, and in the container In the area other than the opening area in the outer periphery, it is provided independently in the intermediate part of at least one of the sides of the rectangular container body and the lid body.

According to this structure, the container main body and the cover body can be firmly fitted by the engagement of the main body reverse taper portion and the cover body reverse taper portion. In addition, the rigidity of the container body can be improved by the inner peripheral edge portion provided on the body peripheral wall portion, and even if a load is applied, when the container body is fitted with the lid body, that is, when the lid is closed or when the fitting is released, that is, the lid is opened. The container body can be made difficult to bend.

As an embodiment, it is preferable that among the four corners of the rectangular container body and the lid body, two diagonally arranged corners are the target corners and the lid opening area, and the remaining two corners are the non-opening area where the main body gripping portion and the cover gripping portion do not overlap,

The reverse taper engaging portion is provided in all the decap areas and all the non-decap areas.

According to this configuration, since the inverted taper engaging portions can be arranged at all four corners of the rectangular container body and the lid body, the container body and the lid body can be fitted in a balanced manner as a container as a whole. In addition, the opening area where the main body gripping part and the lid body gripping part overlap are arranged at two diagonally arranged corners of the rectangular container body and the four corners of the lid body, and the other two corners are non-removing areas and do not need the main body gripping area. The pinch portion or the lid body grasps the pinch portion, so that the simplification of the structure can be achieved.

As one embodiment, it is preferable that a positioning ridge portion for positioning the stored object accommodated in the container is formed so as to protrude upward from the bottom surface portion.

According to this configuration, since the contents in the container can be positioned by the positioning ridges, even if a load is applied to the container body when the lid is opened or closed, and the container body is slightly deflected, it is possible to prevent the contents from being trapped in the container. The inside is messed up.

As one embodiment, it is preferable that an indicator portion serving as a reference when the object to be accommodated in the container is accommodated is formed on the bottom surface portion.

According to this configuration, since it is possible to arrange the to-be-stored objects in a predetermined position by the indicator portion, even if a load is applied when the lid is opened or closed and the container body is slightly deflected, it is possible to suppress a plurality of items arranged at different positions. A situation in which the contained item(s) are mixed together.

As an embodiment, it is preferable that the bottom surface has a mounting portion on which the objects to be stored are mounted, and a bottom groove portion provided on the outer edge of the mounting portion and recessed downward,

A positioning ridge portion for positioning the stored object placed on the placing portion is formed to protrude upward from the placing portion and continuously extends to the bottom groove portion,

The marking portion is formed by protruding upward or recessed downward from the mounting portion, and extending continuously to the bottom groove portion.

According to this structure, for example, excess water flowing out from the stored object or excess water adhering to the stored object can be made to flow to the bottom groove portion via the positioning ridge portion or the marking portion. Therefore, the deterioration of the quality of the stored object can be suppressed.

Further features and advantages of the disclosed technology will be further apparent from the following description of exemplary and non-limiting embodiments described with reference to the accompanying drawings.

Description of drawings

Fig. 1 is an exploded front view of the packaging container.

Fig. 2 is an exploded side view of the packaging container.

Fig. 3 is a plan view of the packaging container.

Fig. 4 is a plan view of the container body.

FIG. 5 is a cross-sectional view taken along the line V-V of FIG. 3 .

FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 3 .

FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 3 .

Detailed ways

(Schematic structure of packaging container)

The packaging container 1 of the present embodiment will be described with reference to the drawings. The packaging container 1 is formed by sheet molding, and as shown in FIGS. 1 and 2 , has a container body 3 and a lid 5 . 5 to 7 are cross-sectional views obtained by cutting the packaging container 1 along the V-V, VI-VI and VII-VII cutting lines in FIG. 3 showing the plan view of the packaging container 1, respectively.

In addition, in order to understand the cut part of the container main body 3 easily, the above-mentioned cut line is also shown in FIG. 4 which shows the top view of the container main body 3. As shown in FIG.

Foods and the like (eg, dishes, etc.) to be accommodated are accommodated in the packaging container 1 . The packaging container 1 of the present embodiment is suitable for accommodating small pieces to be accommodated, such as nigiri sushi and Hagi cake, for example. In addition, hereinafter, the inner side of the packaging container 1, that is, the direction from the outer edge side toward the center side will be referred to as "inward direction" or "inner side". In addition, the outer side of the packaging container 1, that is, the direction from the center side toward the outer edge side will be described as "outward" or "outside".

As shown in FIG. 3 , in the present embodiment, the packaging container 1 is formed in a rectangular shape in plan view. That is, the container main body 3 and the lid body 5 constituting the packaging container 1 are formed in a rectangular shape in plan view. In the present embodiment, the container body 3 and the lid body 5 are formed in a rectangular shape in plan view, and each has a pair of short side portions 3SS and 5SS and a pair of long side portions 3SL and 5SL. However, the container body 3 and the lid body 5 are not limited to this structure, and may be formed in a square shape in plan view.

The container body 3 is provided with a main body reverse taper portion 35 , and the lid body 5 is provided with a cover body reverse taper portion 55 engaged with the main body reverse taper portion 35 , which will be described in detail later. Furthermore, as shown in FIG. 3 , the packaging container 1 is provided with a reverse taper engaging portion 15 formed by engaging these main body reverse taper portions 35 with the lid body reverse taper portion 55 . Thereby, the container main body 3 and the lid body 5 can be firmly fitted. In addition, the container body 3 is provided with a body gripping portion 36 , and the lid body 5 is provided with a lid body gripping portion 56 overlapping the body gripping portion 36 . Furthermore, as shown in FIG. 3, the container 1 for packaging is provided with the opening area 11 in which these main body gripping portions 36 and lid body gripping portions 56 overlap. As a result, the lid body gripping portion 56 can be easily grasped in the lid opening region 11 , and when the lid is opened, the lid body gripping portion 56 can be easily grasped to open the lid.

In addition, as shown in FIGS. 1 to 3 , among the four corners of the rectangular container body 3 and the lid body 5 , at least one corner is used as the target corner 1X, and the target corner 1X is used as the lid opening region 11 . In the present embodiment, among the four corners of the rectangular container body 3 and the lid body 5, two diagonally arranged corners are the target corners 1X and the lid opening region 11, and the other two corners that are not the target corners 1X It is the non-opening area 12 in which the main body gripping portion 36 and the lid body gripping portion 56 do not overlap. In the illustrated example, the main body gripping portion 36 and the lid body gripping portion 56 are not disposed in the non-opening region 12 .

However, it is not limited to such a structure, and either one of the main body gripping portion 36 and the lid body gripping portion 56 may be arranged in the non-opening region 12 . Next, the structure of each part of the packaging container 1 is demonstrated in detail.

(container body)

As shown in FIG. 4, the container main body 3 has four main body side parts 3S. In the present embodiment, the main body side portion 3S includes a pair of main body short side portions 3SS and a pair of main body long side portions 3SL that constitute a long side portion of the container main body 3 having a rectangular shape in plan view.

As shown in FIGS. 4 to 7 , the container main body 3 has a bottom surface portion 31 , a main body peripheral wall portion 32 extending upward from the bottom surface portion 31 , a main body flange portion 33 extending outward from the main body peripheral wall portion 32 , and a larger portion than the main body flange portion. 33 A main body reverse taper portion 35 provided on the peripheral side (outer side) and a main body gripping portion 36 constituted by a protruding piece protruding outward from the main body flange portion 33 .

The bottom surface portion 31 is formed in a rectangular (rectangular) shape in plan view. In the example shown in FIG. 4, the four corners of the bottom surface part 31 are formed in the chamfered shape. The container main body 3 has an accommodation portion 37 for accommodating a to-be-contained object surrounded by the main body peripheral wall portion 32 . In the present embodiment, the bottom surface portion 31 has a placing portion 31A on which the objects to be accommodated in the accommodating portion 37 are placed, and a first bottom groove portion 31B (corresponding to an outer edge of the placing portion 31A that is recessed downward) "Bottom groove portion") and a second bottom groove portion 31C which is provided at the outer edge of the first bottom groove portion 31B and is recessed downward.

The mounting part 31A is provided in the center of the container main body 3, and is arrange|positioned above the 1st bottom groove part 31B and the 2nd bottom groove part 31C. The first bottom groove portion 31B is formed outward of the mounting portion 31A, and in the example shown in the figure, is formed in a ring shape surrounding the entire circumference of the mounting portion 31A. Moreover, 31 C of 2nd bottom groove parts are formed in the outward direction of 1st bottom groove part 31B, and are formed in the ring shape which surrounds the whole circumference of 1st bottom groove part 31B in the example shown in figure. In addition, the second bottom groove portion 31C is arranged below the mounting portion 31A and the first bottom groove portion 31B. As shown in FIGS. 5 to 7 , in the present embodiment, the second bottom groove portion 31C constitutes the leg portion 30 of the container body 3 on the back side thereof. Further, as shown in FIG. 4 , in the second bottom groove portion 31C, a plurality of in-groove convex portions 31Ca protruding upward are provided inside the second bottom groove portion 31C. Thereby, the rigidity of the leg part 30 which consists of 31 C of 2nd bottom groove parts can be improved.

As shown in FIG. 4 , in the present embodiment, a positioning rib 38 for positioning (displacement preventing) the object to be accommodated in the container is formed to protrude upward from the bottom surface portion 31 . In the example shown in the figure, the positioning ridges 38 are formed to protrude upward from the placement portion 31A of the bottom surface portion 31 , and position the stored object placed on the placement portion 31A.

As shown in FIG. 4 , the positioning rib 38 is arranged at the center of the placing portion 31A in the direction along the main body short side portion 3SS, extends along the main body long side portion 3SL, and faces the stored objects in the direction along the main main body short side portion 3SS. to locate. In the example shown in the figure, the central portion of the positioning ridge portion 38 extends along the main body long side portion 3SL in plan view. On the other hand, in plan view, both end portions of the positioning ridge portion 38 are inclined with respect to the direction along the main body long side portion 3SL and the direction along the main body short side portion 3SS. In the present embodiment, the positioning ridge portion 38 extends continuously to the first bottom groove portion 31B. Both end portions of the positioning rib portion 38 extend continuously to the first bottom groove portion 31B, in other words, so as to extend across the first bottom groove portion 31B formed in a ring shape. As a result, excess moisture on the mounting portion 31A (for example, excess moisture flowing out of the object to be accommodated) can be smoothly flowed to the first bottom groove portion 31B via the positioning ridge portion 38, and the mounting can be properly maintained. The quality of the object placed on the part 31A. However, it is not limited to such a structure, and the positioning ridges 38 may be limited within the mounting portion 31A, and may not extend so as to cross the first bottom groove portion 31B.

As shown in FIG. 4 , in the present embodiment, the bottom surface portion 31 is formed with an indicator portion 39 that serves as a reference when the object to be accommodated in the container is accommodated. In this example, the indicator portion 39 is formed so as to be recessed downward from the placement portion 31A of the bottom surface portion 31 . However, it is not limited to such a configuration, and the indicator portion 39 may be formed so as to protrude upward from the placement portion 31A. The marking portion 39 only needs to have a slight concave depth or protruding height, which can be visually recognized. In addition, as long as it can be visually recognized, the marking part 39 may be comprised by the pattern etc. which do not have unevenness|corrugation.

As shown in FIG. 4 , on both sides of the mounting portion 31A across the positioning ridge portion 38 , the indicator portions 39 are arranged at intervals with respect to the positioning ridge portion 38 . A plurality of indicator portions 39 are arranged at intervals along the direction of the main body long side portion 3SL. In the illustrated example, the indicator portion 39 extends in the same direction as the direction in which both end portions of the positioning ridge portion 38 are inclined in a plan view, and all the plurality of indicator portions 39 extend in the same direction. In the present embodiment, one end portion of the indicator portion 39 (the end portion on the opposite side to the positioning ridge portion 38 ) extends continuously to the first bottom groove portion 31B. In this way, in addition to the above-described positioning ridges 38 , the indicator portion 39 can also be used to allow excess moisture on the placement portion 31A to flow to the first bottom groove portion 31B via the indicator portion 39 . However, it is not limited to such a structure, and the indicator portion 39 may be limited to the mounting portion 31A without extending to the extent that it spans the first bottom groove portion 31B.

As described above, the main body peripheral wall portion 32 extends upward from the bottom surface portion 31 . As shown in FIGS. 5 to 7 , in the present embodiment, the main body peripheral wall portion 32 is connected to the second bottom groove portion 31C of the bottom surface portion 31 and extends upward from the second bottom groove portion 31C. In the example shown in the figure, the main body peripheral wall portion 32 is inclined so as to become outward as it goes upward.

Here, in general, when a container main body is provided with a partition wall for partitioning a storage portion for storing objects, such as a platter container or a lunch box that stores many dishes, such partition The wall has a function of increasing the rigidity of the container body, and can suppress deflection of the container body when a load is applied to the container body when the container body is opened or closed, for example. However, as described above, the packaging container 1 of the present embodiment is suitable for accommodating small pieces of items to be accommodated such as nigiri sushi and hagi cakes, and does not have the accommodating portion 37 that divides the accommodating portion 37 , such as a platter container or a lunch box container. divide the wall.

Then, as shown in FIGS. 4 and 5 , in the portion of the main body peripheral wall portion 32 corresponding to the target corner portion 1X (the target corner portion of the four corners of the packaging container 1 ), there is provided an inner portion that protrudes toward the inside of the container. The edge portion 32A. Thereby, even in the structure without the partition wall as described above, when a load is applied to the container body 3 when the lid is opened or closed, the container body 3 can be prevented from being flexed. In the present embodiment, the inner peripheral edge portions 32A are respectively arranged at the two corners of the rectangular container body 3 , which are the target corners 1X, and the other two corners, which are not the target corners 1X. In other words, the inner peripheral edge portions 32A are arranged at all four corners of the container body 3 . In the example shown in the figure, the inner peripheral ridge portion 32A extends in the up-down direction along the inclined surface of the main body peripheral wall portion 32 . In this example, at each of the four corners of the container body 3 , the plurality of inner peripheral edge portions 32A are arranged side by side in the circumferential direction. However, it is not limited to such a configuration, and only one inner peripheral edge portion 32A may be arranged at each of the four corners of the container body 3 . In addition, when a plurality of inner peripheral edge portions 32A are provided at each of the four corners of the container body 3, not only three are provided as in the illustrated example, but two or four or more may be provided. Furthermore, the number of the inner peripheral edge portions 32A may be different between the counterpart corner portion 1X and the counterpart corner portion 1X.

As shown in FIGS. 4 to 7 , the main body flange portion 33 extends outward from the upper end of the main body peripheral wall portion 32 . In the present embodiment, the container body 3 has a body skirt 34 extending downward from the outer end of the body flange 33 . The main body skirt 34 is formed over the entire circumference of the container main body 3 . Further, the main body skirt portion 34 is formed with a main body bulging portion 34A that bulges outward, and the main body bulging portion 34A is formed over the entire circumference of the container main body 3 . In the present embodiment, the main body reverse taper portion 35 is continuous with the main body bulging portion 34A on the lower side of the main body bulging portion 34A. The main body reverse taper portion 35 is inclined so as to become more inward as it goes downward.

As shown in FIG. 4 , in this embodiment, the main body reverse taper portion 35 is intermittently formed on the outer periphery of the container main body 3 . In the illustrated example, the main body reverse taper portion 35 is provided in the decap region 11 so as to cover substantially the entire decap region 11 (target corner portion 1X), and in the outer periphery of the container other than the decap region 11 In the region, the main body reverse taper portion 35 is independently provided in the intermediate portion 3M of at least one main body side portion 3S among the plurality of main body side portions 3S.

In this embodiment, the main body reverse taper part 35 is provided in the intermediate part 3M of the main body long side part 3SL. Moreover, the main body reverse taper part 35 is provided in each both end parts 3E of the main body long-side part 3SL, respectively. In the example shown in the figure, the main body reverse taper part 35 is also provided in the main body short side part 3SS, and more specifically, the main body reverse taper part 35 is also provided in both end parts 3E of the main body short side part 3SS. In addition, the main body reverse taper part 35 is not provided in the intermediate part 3M of the main body short side part 3SS. Therefore, in the present example, the main body reverse taper parts 35 are independently provided at both end parts 3E and the middle part 3M of the pair of main body long side parts 3SL of the rectangular container main body 3, and at the pair of main main body short side parts 3SS, the main body The reverse taper portion 35 is provided only at both end portions 3E of each of the main body short side portions 3SS.

As shown in FIGS. 4 and 5 , the body gripping portion 36 is continuous with the body flange portion 33 via the body skirt portion 34 and protrudes outward from the body flange portion 33 . In the present embodiment, the body gripping portions 36 are arranged at two of the four corners of the container body 3 which are the target corners 1X, and the body gripping portions 36 are not arranged at the other two corners which are not the target corners 1X. In the example shown in FIG. 4 , the body gripping portion 36 is formed in a substantially triangular shape in plan view. As shown in FIG. 5 , in this embodiment, the body gripping portion 36 extends outward in the horizontal direction from the lower end of the body skirt portion 34 . In the present embodiment, the body gripping portion 36 is provided with a planar body gripping surface portion 36A and an upper protrusion portion 36B protruding upward from the body gripping surface portion 36A.

(cover)

As shown in FIGS. 1 to 3 , the lid body 5 has four lid body side portions 5S. In this embodiment, the lid body side portion 5S includes a pair of lid body short side portions 5SS and a pair of lid body long side portions 5SL constituting a long side portion of the lid body 5 having a rectangular shape in plan view.

The lid body 5 has a top surface portion 51 , a lid body peripheral wall portion 52 extending downward from the top surface portion 51 , a lid body flange portion 53 extending outward from the lid body peripheral wall portion 52 , and provided at a peripheral edge relative to the lid body flange portion 53 . The cover reverse taper portion 55 which engages with the main body reverse taper portion 35 and the cover body gripping portion 56 which is constituted by a protruding piece protruding outward from the cover body flange portion 53 and overlaps the body gripping portion 36 .

The top surface portion 51 is formed in a rectangular shape (rectangle) in plan view. In the example shown in FIG. 3 , the four corners of the top surface portion 51 are chamfered.

The lid peripheral wall portion 52 is continuous with the outer edge of the top surface portion 51 . The lid peripheral wall portion 52 is inclined so as to be outward as it goes downward. As shown in FIGS. 3 and 5 , at positions corresponding to the four corners of the lid body 5 in the lid body peripheral wall portion 52 , there are provided peripheral wall concave portions 52A recessed inward. The peripheral wall recess 52A extends in the up-down direction. In the present embodiment, the peripheral wall recessed portion 52A is formed over the entire area of the lid peripheral wall portion 52 in the vertical direction. The strength of the lid body peripheral wall portion 52 can be increased by the peripheral wall recessed portion 52A, and the lid body 5 can be restrained from being deflected by an external force.

As shown in FIGS. 3 and 5 to 7 , the cover flange portion 53 extends outward along the horizontal direction from the lower end of the cover peripheral wall portion 52 . In the present embodiment, the lid body 5 has a lid body skirt portion 54 extending downward from the outer end portion of the lid body flange portion 53 . The cover skirt 54 is formed over the entire circumference of the cover 5 . Moreover, the cover body skirt 54 is formed with a cover body bulging portion 54A that swells outward, and the cover body bulging portion 54A is formed over the entire circumference of the cover body 5 . In the present embodiment, the cover body reverse taper portion 55 is continuous with the cover body bulging portion 54A on the lower side of the cover body bulging portion 54A. The cover body reverse taper portion 55 is inclined so as to be inward as it goes downward.

As shown in FIG. 3 , in the present embodiment, the cover body reverse taper portion 55 is intermittently formed on the outer periphery of the cover body 5 . In addition, the cap body reverse taper portion 55 is provided in the cap opening region 11 so as to cover substantially the entire cap opening region 11 (the target corner portion 1X), and in the outer periphery of the container, the cap portion is not covered by the cap opening region 11. The body reverse taper portion 55 is independently provided in the intermediate portion 5M of at least one cover body side portion 5S among the plurality of cover body side portions 5S.

In this embodiment, the cover body reverse taper part 55 is provided in the middle part 5M of the cover body long side part 5SL. Moreover, the cover body reverse taper part 55 is provided in each both end parts 5E of the cover body long-side part 5SL, respectively. In the example shown in the figure, the lid body reverse taper portion 55 is also provided in the lid body short side portion 5SS. More specifically, the lid body reverse taper portion 55 is provided at both end portions 5E of the lid body short side portion 5SS. In addition, the cover body reverse taper part 55 is not provided in the intermediate part 5M of the cover body short side part 5SS. Therefore, in this example, the cover body reverse taper portion 55 is independently provided at both end portions 5E and the middle portion 5M of the pair of cover body long side portions 5SL of the rectangular cover body 5, and is provided at the pair of cover body short side portions. 5SS, the cover body reverse taper portion 55 is provided only on both end portions 5E of each cover body short side portion 5SS.

As shown in FIGS. 3 and 5 , the lid body gripping portion 56 is continuous with the lid body flange portion 53 via the lid body skirt portion 54 and protrudes outward from the lid body flange portion 53 . In the present embodiment, the cover gripping portions 56 are arranged at two of the four corners of the cover 5 which are the target corners 1X, and the cover gripping portions 56 are not arranged at the other two corners which are not the target corners 1X. In the example shown in FIG. 3 , the lid body gripping portion 56 is formed in a substantially triangular shape in plan view. As shown in FIG. 5 , in the present embodiment, the cover gripping portion 56 extends outward along the horizontal direction from the lower end of the cover skirt 54 . In the present embodiment, the lid gripping portion 56 is provided with a planar lid gripping surface portion 56A and a lower protrusion portion 56B protruding downward from the lid gripping surface portion 56A.

As shown in FIG. 3 , a lid opening region 11 (see also FIG. 5 ) that is a starting point when the lid body 5 is removed from the container body 3 is provided on the outer periphery of the container. As described above, among the four corners of the rectangular container body 3 and the lid body 5 , the diagonally arranged two corners are the target corners 1X and the lid opening regions 11 . In addition, the other two corners that are not the target corners 1X become the non-opening regions 12 in which the main body gripping portion 36 and the lid body gripping portion 56 do not overlap. In the lid-opening region 11 , in a state where the lid-grip parts 56 are arranged above the body-grip parts 36 , these lid-grip parts 56 overlap with the body-grip parts 36 . As shown in FIG. 5 , in the state where the body gripping portion 36 and the lid body gripping portion 56 are overlapped, the upper protruding portion 36B of the body gripping portion 36 abuts against the lower protruding portion 56B of the lid body gripping portion 56 . Therefore, a gap is generated between the main body gripping surface portion 36A and the lid body gripping surface portion 56A. Therefore, it becomes easy to grasp the lid body grasping portion 56 when the lid is opened.

(reverse taper engaging part)

As shown in FIG. 3 , the reverse taper engaging portion 15 formed by engaging the main body reverse taper portion 35 (see FIG. 4 etc.) with the cover body reverse taper portion 55 is provided on the cover opening so as to cover substantially the entire cover opening area 11 . In the area 11, and in areas other than the lid opening area 11 in the outer periphery of the container, the reverse taper engaging portion 15 is independently provided in the intermediate portion 1M of at least one of the sides of the rectangular container body 3 and the lid body 5. . Furthermore, as described above, in the present embodiment, two of the four corners of the rectangular container main body 3 and the lid body 5 which are not the target corners 1X are the main body gripping portions 36 and the lid body gripping portions 56 that do not overlap. Non-opening area 12 . In addition, the reverse taper engaging portions 15 are provided in all the decap areas 11 and all the non-decap areas 12 . In this way, the reverse taper engaging portions 15 are provided at the four corners of the container body 3 and the lid body 5 . Thereby, the entire container body 3 and the entire lid body 5 can be fitted in a balanced manner.

The reverse taper engaging portion 15 is provided in all the decap regions 11 and all the non-decap regions 12 so as to cover substantially the entire regions of all the decap regions 11 and all the non decap regions 12 , respectively. As shown in FIGS. 5 and 6 , in the reverse taper engaging portion 15 , the cover reverse taper portion 55 is engaged with the main body reverse taper portion 35 from the outside.

Furthermore, as described above, the cover body reverse taper portion 55 and the main body reverse taper portion 35 are inclined so as to be inward as they go downward. Therefore, the reverse taper engaging portion 15 formed by engaging the cover reverse taper portion 55 and the main body reverse taper portion 35 is also inclined so as to be inward as it goes downward. In the example shown in FIGS. 5 and 6 , the reverse taper engaging portion 15 is inclined at an angle that forms θ with the vertical line. "θ" is preferably, for example, 30° to 90°. According to the above-described configuration, in a state where no external force is applied, it is difficult to remove the lid body 5 from the container body 3 .

In addition, as shown in FIG. 5, when the cover body 5 is fitted to the container body 3, it is necessary to press the cover body reverse taper portion 55 into the main body bulging portion 34A from top to bottom. Therefore, the cover body 5 is required to be capable of Withstand the strength of pressing. As described above, in the present embodiment, in the lid peripheral wall portion 52 , at the positions corresponding to the four corners of the lid 5 , more specifically, the inverted taper clamps provided in the lid opening region 11 and the non-covering region 12 A peripheral wall concave portion 52A recessed inward is provided at a position just above the joint portion 15 (see FIGS. 3 and 5 ). Thereby, the strength of the lid body peripheral wall portion 52 is increased, and further the strength of the lid body 5 is increased, so that the lid body 5 is hardly flexed even by press-fitting at the time of fitting.

As described above, the reverse taper engaging portion 15 is independently provided in the intermediate portion 1M of at least one of the sides of the rectangular container body 3 and the lid body 5 . In the present embodiment, the reverse taper engaging portion 15 is provided in the intermediate portion 1M of the respective long side portions 3SL and 5SL of the container body 3 and the lid body 5 (packaging container 1 ). Moreover, the reverse taper engaging part 15 is also provided in each both end parts 1E of each long side part 3SL and 5SL of the container main body 3 and the lid body 5 (packaging container 1). In the example shown in the figure, each of the short side portions 3SS and 5SS of the container body 3 and the lid body 5 (the packaging container 1 ) is also provided with a reverse taper engaging portion 15 , more specifically, a reverse taper engaging portion. 15 is provided at both end portions 1E of each of the short side portions 3SS and 5SS. In addition, the reverse taper engaging part 15 is not provided in the intermediate part 1M of each short side part 3SS, 5SS of the container main body 3 and the lid body 5 (packaging container 1).

Therefore, in this example, the reverse taper engaging portion 15 is independently provided at both end portions 1E and the middle portion 1M of the pair of long side portions 3SL and 5SL of the rectangular container body 3 and the lid body 5, and is provided at the pair of short side portions 1E and 1M. The side portions 3SS and 5SS and the reverse taper engaging portion 15 are provided only at the two end portions 1E of the respective short side portions 3SS and 5SS.

According to the packaging container 1 described above, it is possible to realize a structure in which the container body 3 and the lid body 5 can be firmly fitted by the engagement of the body reverse taper portion 35 and the lid body reverse taper portion 55 . In addition, according to this structure, a certain amount of force is required when opening and closing the lid, and a load is applied to the container body 3 . However, in this packaging container 1, since the rigidity of the container body 3 can be improved by the inner peripheral edge portion 32A provided in the main body peripheral wall portion 32, even when a load is applied to the container body 3 when the lid is opened or closed Even in the case of the container body 3, the container body 3 can be made difficult to bend.

(Other Embodiments)

(1) In the above-described embodiment, an example has been described in which, among the four corners of the rectangular container body 3 and the lid body 5 , the diagonally arranged two corners are the target corners 1X and the lid opening regions 11 . , and the other two corners that are not the target corners 1X are used as the non-opening regions 12 where the main body gripping portion 36 and the lid body gripping portion 56 do not overlap. However, the present invention is not limited to such an example. All four corners of the rectangular container body 3 and the lid body 5 may be used as the target corners 1X and the lid opening area 11 . Alternatively, only one corner of the rectangular container body 3 and the lid body 5 may be used as the target corner 1X and the lid opening area 11 .

(2) In the above-described embodiment, an example in which the positioning ridge portion 38 and the indicator portion 39 are formed on the bottom surface portion 31 has been described. However, the positioning ridge portion 38 and the marking portion 39 are not necessarily structures, and at least one of them may not be formed on the bottom surface portion 31 .

(3) In the above-described embodiment, an example in which the main body reverse taper portion 35 is intermittently formed on the outer periphery of the container main body 3 has been described. However, the present invention is not limited to such an example.

The main body reverse taper portion 35 may be formed over the entire circumference of the outer periphery of the container main body 3 . In addition, similarly, the cover body reverse taper portion 55 is not limited to the example in which the cover body 5 is intermittently formed on the outer circumference of the cover body 5 , and may be formed over the entire circumference of the outer circumference of the cover body 5 . The reverse taper engaging portion 15 formed by engaging the main body reverse taper portion 35 and the lid body reverse taper portion 55 may be provided in the uncapped region 11 so as to cover substantially the entire uncapped region 11, and may be provided on the outer periphery of the container. In the area other than the opening area 11, the intermediate portion 1M of at least one of the sides of the rectangular container body 3 and the lid body 5 is independently provided, thereby determining the main body reverse taper portion 35 and the cover body reverse taper portion. 55 in the form of formation.

(4) In addition, the structures disclosed in the above-mentioned respective embodiments may be used in combination with the structures disclosed in other embodiments as long as there is no contradiction. Regarding other structures, all contents of the embodiments disclosed in this specification are merely examples. Therefore, various changes can be suitably made in the range which does not deviate from the summary of this disclosure.

Industrial Availability

The technology of the present disclosure can be applied to a packaging container including a container body and a lid.

Description of reference numerals

1: Packaging container,

1M: The middle part of each side of the packaging container,

1X: Object corner,

3: container body,

3S: main body edge,

3M: The middle part of the edge of the main body,

5: cover body,

5S: edge of cover body,

5M: The middle part of the edge of the cover body,

11: Opening area,

12: Non-opening area,

15: Inverted taper engaging part,

31: Bottom face,

31A: Loading part,

31B: The first bottom groove portion (bottom groove portion),

32: The peripheral wall of the main body,

32A: inner peripheral edge,

33: Body flange part,

35: main body reverse taper,

38: Positioning edge,

39: Marking Department,

51: top face,

52: The peripheral wall of the cover body,

52A: Peripheral wall recess,

53: Cover flange part,

55: Inverted taper of cover body,

56: The gripping part of the cover body.

Claims (as amended by Article 19 of the Treaty)

1. (After correction)

A packaging container, comprising a container body and a lid, formed by sheet molding, wherein the packaging container is characterized in that:

The container body and the lid are formed in a rectangular shape in plan view, and have a pair of short sides and a pair of long sides,

The container main body has a bottom surface portion, a main body peripheral wall portion, a main body flange portion, a main body reverse taper portion, and a main body gripping portion, the main body peripheral wall portion extending upward from the bottom surface portion, and the main body flange portion extending from the bottom surface portion. The main body peripheral wall portion extends outward, the main body reverse taper portion is provided on the peripheral edge side than the main body flange portion, and the main body gripping portion is constituted by a protruding piece protruding outward from the main body flange portion,

The cover body has a top surface portion, a cover body peripheral wall portion, a cover body flange portion, a cover body inverted taper portion, and a cover body gripping portion, the cover body peripheral wall portion extending downward from the top surface portion, and the cover body A flange portion extends outward from the peripheral wall portion of the cover body, the cover body reverse taper portion is provided on a peripheral edge side than the cover body flange portion, and is engaged with the main body reverse taper portion, and the cover body is gripped and pinched The part is composed of a protruding piece that protrudes outwardly from the flange part of the cover body and overlaps the gripping part of the main body,

The lid opening area where the gripping portion of the main body overlaps with the gripping portion of the lid body is arranged on the outer periphery of the container,

Among the four corners of the rectangular container body and the lid, at least one corner is used as the target corner, and the target corner is used as the lid opening area,

A portion of the peripheral wall portion of the main body corresponding to the corner portion of the object is provided with an inner peripheral edge portion protruding toward the inside of the container,

The inverted taper engaging portion formed by engaging the main body inverted taper portion with the lid body inverted taper portion is provided in the decap region so as to cover substantially the entire lid decap region, and in the container In the area other than the opening area in the outer periphery, it is provided independently in the middle part of the long side part, and is not provided in the middle part of the short side part.

2. The packaging container according to claim 1, wherein

Among the four corners of the rectangular container body and the lid body, two diagonally arranged corners are used as the target corners and the lid opening area, and the remaining two corners are used as the main body gripping and pinch parts. the non-opening area where the gripping parts of the cover body do not overlap,

The reverse taper engaging portion is provided in all the decap areas and all the non-decap areas.

3. The packaging container according to claim 1 or 2, wherein

A positioning rib for positioning the object accommodated in the container is formed to protrude upward from the bottom surface.

4. The packaging container according to any one of claims 1 to 3, wherein

The bottom surface part is formed with the indicator part used as a reference when the to-be-contained object accommodated in a container is accommodated.

5. The packaging container according to claim 4, wherein

The bottom surface portion has a mounting portion for mounting the object to be accommodated, and a bottom groove portion provided on the outer edge of the mounting portion and recessed downward,

A positioning ridge portion for positioning the stored object placed on the placing portion is formed to protrude upward from the placing portion and continuously extends to the bottom groove portion,

The marking portion is formed by protruding upward or recessed downward from the mounting portion, and extending continuously to the bottom groove portion.

Claims (5)

1. A packaging container comprising a container body and a lid, and formed by sheet metal molding, wherein the packaging container is characterized in that: The container body and the lid are formed in a rectangular shape in plan view, The container main body has a bottom surface portion, a main body peripheral wall portion, a main body flange portion, a main body reverse taper portion, and a main body gripping portion, the main body peripheral wall portion extending upward from the bottom surface portion, and the main body flange portion extending from the bottom surface portion. The main body peripheral wall portion extends outward, the main body reverse taper portion is provided on the peripheral edge side than the main body flange portion, and the main body gripping portion is constituted by a protruding piece protruding outward from the main body flange portion, The cover body has a top surface portion, a cover body peripheral wall portion, a cover body flange portion, a cover body inverted taper portion, and a cover body gripping portion, the cover body peripheral wall portion extending downward from the top surface portion, and the cover body A flange portion extends outward from the peripheral wall portion of the cover body, the cover body reverse taper portion is provided on a peripheral edge side than the cover body flange portion, and is engaged with the main body reverse taper portion, and the cover body is gripped and pinched The part is composed of a protruding piece that protrudes outward from the flange part of the cover body and overlaps the gripping part of the main body, The lid opening area where the gripping portion of the main body overlaps with the gripping portion of the lid body is arranged on the outer periphery of the container, Among the four corners of the rectangular container body and the lid, at least one corner is used as the target corner, and the target corner is used as the lid opening area, A portion of the peripheral wall portion of the main body corresponding to the corner portion of the object is provided with an inner peripheral edge portion protruding toward the inside of the container, The inverted taper engaging portion formed by engaging the main body inverted taper portion with the lid body inverted taper portion is provided in the decap region so as to cover substantially the entire lid decap region, and in the container In the area other than the opening area in the outer periphery, it is provided independently in the intermediate part of at least one of the sides of the rectangular container body and the lid body. 2. The packaging container according to claim 1, wherein Among the four corners of the rectangular container body and the lid body, two diagonally arranged corners are used as the target corners and the lid opening area, and the remaining two corners are used as the main body gripping and pinch parts. the non-opening area where the gripping parts of the cover body do not overlap, The reverse taper engaging portion is provided in all the decap areas and all the non-decap areas. 3. The packaging container according to claim 1 or 2, wherein A positioning rib for positioning the object accommodated in the container is formed to protrude upward from the bottom surface. 4. The packaging container according to any one of claims 1 to 3, wherein The bottom surface part is formed with the indicator part used as a reference when the to-be-contained object accommodated in a container is accommodated. 5. The packaging container according to claim 4, wherein The bottom surface portion has a mounting portion for mounting the object to be accommodated, and a bottom groove portion provided on the outer edge of the mounting portion and recessed downward, A positioning ridge portion for positioning the stored object placed on the placing portion is formed to protrude upward from the placing portion and continuously extends to the bottom groove portion, The marking portion is formed by protruding upward or recessed downward from the mounting portion, and extending continuously to the bottom groove portion.

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