JP2019147620A - Packaging container - Google Patents

Abstract

To provide a packaging container in which engagement of a container main body with a lid body is strengthened to prevent the lid body from easily disengaging and deflection and torsion of the container main body which are caused when releasing the strengthened engagement is reduced.SOLUTION: A packaging container 400 is constituted of a container main body 403 and a lid body 407, which is molded by molding a sheet. The container main body has a bottom surface 32, a wall surface 31, a flange part for engaging the lid body, a container-side inverse taper surface and partitioning walls 33 for a storage part 36. The partitioning wall includes a linear partitioning wall 35, and the lid body is constituted of a top plate 72, a lid-body wall 71, a lid-body flange part and a lid-body inverse taper surface, where a depth of the lid-body inverse taper surface is made to correspond to a depth of the container main body. The container-side inverse taper surface and a folded-back part are provided through a round part. A cut end of the folded-back surface of the lid body does not protrude to the outside more than an outer periphery of the folded-back part of the container main body. A tip position is positioned closer to the outside than a position at which the round part of the lid body starts. In a part on an outer periphery of the container main body is formed a receiving piece protruding outward, and a knob part is formed at a position corresponding to the receiving piece, in the lid body.SELECTED DRAWING: Figure 38

Description

  The present invention is a packaging container which is a resin sheet molded product, which is composed of a lid and a container body, and a plurality of food storage sections are defined in the container body, for example, a packaging container called an hors d'oeuvre container About.

  Conventionally, a food container in which a synthetic resin sheet or film is formed by compressed air, vacuum forming, etc., and a plurality of storage units, for example, a rice storage unit as a staple food and a plurality of side dishes storage units are formed with a partition wall interposed. Yes (Patent Document 1).

  Patent Document 2 discloses a circular packaging container that can accommodate a large amount of food as an object to be contained by a plurality of partition walls. Such a circular packaging container is suitable for providing food, for example, for a large group dinner.

JP-A-8-47411 JP 2016-37323 A

  By the way, in a container in which a plurality of partition walls are provided in the container main body and three or more storage portions are provided, mixing of different side dishes must be avoided because the original quality and taste are greatly impaired. .

  In this way, the mixing of side dishes may of course be caused by the height of the partition wall, in other words, by the depth of the storage part, but the rampage of the stored item caused by the deflection of the container body when the lid is opened May be the cause.

  In this regard, in a packaging container (commodity) in which the contents are already stored, the lid body is strongly fitted to the container body in order to prevent inadvertent opening at the time of transportation or display. In this case, however, when the buyer (consumer) releases the strong fitting and opens the lid, the container body is likely to be bent or twisted, and the above-mentioned problem is likely to be caused. Arise. In addition, when the deformed container body is restored, the contents may be splashed and jumped out by that force.

  In particular, in the case of a circular packaging container (hors d'oeuvre container) as in Patent Document 2, in order to produce a sense of volume, the container body has an inclined shape such that the bottom surface of the container body becomes higher toward the center, When the lid is opened while applying force from the outer edge to the center side, the center of the container body is deformed to bend downward, and after opening the container body is restored to its original shape at once There was a risk of jumping out.

  The present invention has been made in order to solve the above-described problems. The object of the present invention is to prevent the lid from easily coming off by strengthening the fitting between the container main body and the lid, and this. Thus, it is an object of the present invention to provide a packaging container that reduces the bending and twisting of the container body that occurs when releasing the strong fitting, which is an essential problem of strengthening the fitting between the container body and the lid.

  In order to achieve the object described above, the present invention is a sheet-molding packaging container comprising a container body and a lid, and the container body includes a bottom surface, a wall surface rising from the periphery of the bottom surface, and a wall surface. On the other hand, the container-side reverse taper has a flange portion for fitting the lid facing outward, and has an inclination of 30 to 90 degrees with respect to the vertical through a round portion formed all around the flange portion for fitting the lid. And a partition wall for partitioning a plurality of storage portions for storing the contents, wherein the partition wall rises from the bottom surface of the container. And a linear partition wall formed in contact with the wall surface and formed from the outer edge portion toward the center portion side, and an annular partition wall formed in an annular shape and provided on the center portion side of the container body. The container body A receiving piece protruding outward is formed on a part of the outer periphery, and the lid body includes a top plate, a lid wall continuous downward from the periphery of the top plate, and a lower edge portion of the lid wall. A lid flange portion that expands toward the outside and a knob portion that projects outwardly corresponding to the receiving piece are formed on a part of the outer periphery of the lid body. The lid flange portion extends from the lid flange portion. A lid reverse taper surface is provided intermittently through the section, and the folded surface is extended outward from the reverse taper surface. Further, the cut end of the folded surface of the lid body does not exceed the outer periphery of the folded portion of the container body, and the tip end position of the cut end extends from the lid flange portion. Means to position outside the position where the lid rounded portion starts Used.

  In the present invention, since the reverse taper surface is formed on both the container main body and the lid body, the lid reverse taper surface provided on the lid body is once engaged with the reverse taper surface of the container main body. To achieve proper engagement. The container-side reverse tapered surface of the container main body can be more securely engaged by setting the inclination within a range of 30 to 90 degrees with respect to the vertical. On the other hand, a receiving piece that protrudes outward is formed on a part of the outer periphery of the container body, and a knob that protrudes outward corresponding to the receiving piece is formed on a part of the outer periphery of the lid. Therefore, when opening the lid, first, when a downward force is applied to the receiving piece of the container body, the knob part of the lid body is relatively detached from the receiving piece, and the knob part can be sandwiched between fingers. Therefore, the lid can be easily opened by separating the knob and the receiving piece from each other in the direction of opening the lid.

  In addition, the container-side reverse tapered surface is provided at an inclination of 30 to 90 degrees with respect to the vertical through the rounded portion formed from the lid fitting flange portion to the entire circumference, and further outward from the reverse tapered surface. On the other hand, a lid reversely tapered surface is intermittently provided from the lid flange portion via the lid rounded portion, and the folded surface is extended outward from the reverse tapered surface. The cut end of the container body does not exceed the outer periphery of the folded portion of the container body, and the tip end position of the cut end is positioned outside the position where the lid round portion starts from the lid flange portion. Therefore, it is possible to prevent the lid from opening the lid by inadvertently hitting the finger of a human finger against the lower edge (cut end) of the lid.

  At the same time, the linear partition wall provided in the container body reinforces the torsional strength of the container body and reduces the bending of the container body that occurs when the lid body in the above-described positive engagement state is opened. Can be made.

  In particular, it is preferable that the linear partition wall has an inwardly curved shape on the center side with an inclination angle that curves inward from the outer edge toward the center.

  Furthermore, as the partition wall, it further has an annular partition wall that is formed in an annular shape and is provided on the center side of the container body. Can be increased.

  In addition, it is preferable that the accommodating part side of a container main body is shape | molded with the aluminum vapor deposition film sheet.

  According to the present invention, it is possible to prevent the lid body from being easily detached by strengthening the fitting between the container body and the lid body, and to strengthen the fitting between the container body and the lid body in this way. It is possible to provide a packaging container in which bending and twisting of the container main body that occurs when releasing strong fitting, which is a difficult problem, is reduced.

Exploded plan view showing an embodiment related to a lunch box (square) Same as above, top view of lid A-A 'line end view of FIG. Same as above, top view of the container body Same as above, plan view explanatory view showing the partition wall of the container body B-B 'line end view and C-C' line end view of FIG. The top view of the container main body which shows other embodiment of a lunch box container The top view of the container main body which shows other embodiment of a lunch box container Plan view schematic diagram of container body showing variations of partition wall Schematic diagram in plan view showing variations in the outer shape of the packaging container The perspective view which showed the principal part of the fitting structure Same as above, end view of main part of container body Same as above, end view of the main part of the lid The principal part sectional view which shows the state which closed the cover body to the container main body similarly The principal part end view of the container main body which shows another embodiment of a fitting structure Same as above, end view of the main part of the lid Sectional drawing which shows the principal part which shows the closed state in further another embodiment of a fitting structure Explanatory drawing showing lid opening operation Explanatory drawing which shows the lid opening operation | movement in other embodiment. Cross-sectional view of relevant parts showing a closed state in yet another embodiment of the fitting structure Cross-sectional view of relevant parts showing a closed state in yet another embodiment of the fitting structure Explanatory drawing which shows the lid opening operation | movement in further another embodiment of a fitting structure. Explanatory drawing which shows the state which piled up container main bodies or lids Explanatory drawing comparing different fitting structures Explanatory drawing which shows the state which piled up other container main bodies or lids Furthermore, explanatory drawing which shows the state which piled up other container main bodies or lids The figure which shows the result of the lid opening test in the lunch box of FIG. The figure which shows the result of the lid opening test in the lunch container which does not have a partition wall The figure which shows the preferable aspect ratio of the lunch container which has a division wall Exploded plan view showing an embodiment of an hors d'oeuvre container (circular) Same as above, top view of the container body Side view of the container body B-B ′ line end view and C-C ′ line end view of FIG. 31. Cross-sectional view of the main part of a closed packaging container showing the structure of the knob Same part perspective view Same part perspective view of the lid Same perspective view of the main body of the container Disassembled perspective view of hors d'oeuvre container (circular) with a middle container Same as above, enlarged perspective view of main part of container body and middle container Same part cross section Main part sectional view showing other embodiments of an hors d'oeuvre container (circular) having a middle container Sectional drawing which shows the principal part which shows other embodiment same as the above Cross-sectional view of the main part showing an hors d'oeuvre container (oval) with a middle container Same as above, perspective view of main body container and middle container Sectional view along the second direction of the packaging container Sectional drawing in alignment with the 1st direction in one use aspect of a packaging container Sectional drawing which follows the 1st direction in the other one usage mode of a packaging container same as the above The figure which shows the state which piled up the same two packaging containers Sectional drawing along the 1st direction of the packaging container of another aspect same as the above Sectional drawing along the 1st direction of the packaging container of another aspect same as the above Sectional drawing along the 1st direction of the packaging container of another aspect same as the above Sectional drawing along the 1st direction of the packaging container of another aspect same as the above Sectional drawing along the 1st direction of the packaging container of another aspect same as the above Sectional drawing in alignment with the 2nd direction of the packaging container of another aspect same as the above Sectional drawing in alignment with the 2nd direction of the packaging container of another aspect same as the above The exploded perspective view of the packaging container according to another embodiment The top view of the packaging container of another aspect Schematic plan view of another embodiment of packaging container Schematic plan view of another embodiment of packaging container

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1 to 5 show a rectangular lunch box. As shown in FIG. 1, the lid 1 and the container body 2 both have a rectangular shape in plan view.

  As shown in FIG. 2, the lid 1 includes a top plate 1a, a lid wall 1b that is inclined downward from the peripheral edge of the top plate 1a, and a lid wall 1b. And a lid flange portion 1c that expands toward the center. The lid flange portion 1d is formed with an engaging portion 1d that fits with the container body 1, and details thereof will be described later.

  As shown in FIG. 3, the top plate 1a is formed with a flat portion 1e once from an inclined lid wall 1b, and is formed one step higher from there. The corners of the top plate 1a have a round shape in a circular arc shape and reinforce the corners.

  In the lid wall 1b, a reinforcing recess 1f is formed at the center of each slope. In addition, projecting linear portions 1g that reinforce the corners of the lid flange portion 1d are formed at the four corners of the lid wall 1b. Further, on the long side of the lid wall 1b, a protruding reinforcing rib 1h is formed between the reinforcing concave portion 1f and the protruding linear portion 1g and straddling the lid flange portion 1c. On the other hand, when the lid body 1 is stacked on the short side of the lid wall 1b, a stop projection 1i is formed between the reinforcing concave portion 1f and the protruding linear portion 1g and straddles the lid flange portion 1c. In addition, the lid flange portion 1c of the upper lid body 1 is in contact with the upper lid body 1 so that they can be stacked at a predetermined height.

  The corners at the four corners of the lid flange portion 1c serve as knobs 1j when the lid 1 is opened, and a triangular guide recess 1k pointing to the knob 1j is formed at the center of the lid region. A second flange portion 11 is formed on the inner side of the open lid region, which is one step higher than the lid flange portion 1c, and a triangular guide recess 1m is formed on an extension line from the guide recess 1k of the second flange portion 1l. The guide recess 1k and the guide recess 1k allow the consumer to recognize the presence of the knob 1j visually or by touch.

  As shown in FIG. 4, the container body 2 corresponding to the lid body 1 includes a bottom surface 2a, a wall surface 2b rising from the periphery of the bottom surface 2a, and a lid body fitting flange portion 2c facing outward from the wall surface 2b. And have. And the engaging part 2d extended from the said cover body fitting flange part 2c and the engaging part 1d of the cover body 1 fits is formed, The detail is mentioned later.

  The container body 2 has a partition wall 2e that rises from the bottom surface 2a. The partition wall 2e is provided on a diagonal line of the container body 2 as indicated by the hatched portion in FIG. Further, both ends of the partition wall 2e are bifurcated at an angle of approximately 90 degrees, and the respective ends are integrally connected to the outer peripheral wall surface 2b. By such a partition wall 2e, the container main body 1 forms a total of four accommodating portions including two large accommodating portions 2f and 2g and two small accommodating portions 2h and 2i.

  Furthermore, as shown in FIG. 6 (A), the partition wall 2e is formed in a mountain shape that spreads toward the end, thereby enhancing the sense of volume by accommodating food so as to lean against the slope, and the container body 2 It has an effective function to prevent the bending of the.

  Further, in one large accommodating portion 2f, a plurality of continuous raised portions 21 are formed so as to protrude from the bottom surface 2a obliquely so as not to be parallel to the outer edge portion of the container body 2. The continuous raised portion 2l functions as a dam when the above-mentioned food is stood and accommodated on the slope of the partition wall 2e, and at the same time improves the strength of the bottom surface 2a of the container body 2 and complements the partition wall 2e. And has a function of preventing the container body from being bent.

  Furthermore, as shown in FIG. 6B, the wall surface 2b at the corners of the inner four corners of the container body 2 forms a stepped step portion 2j, whereby the strength of each of the large and small storage portions is increased. It also serves to supplement the partition wall 2e and prevent the container body 2 from bending.

  Further, the substantially triangular portions at the four corners of the lid fitting flange portion 2c serve as the lid opening region 2k as a receiving piece for the knob 1j of the lid 1.

  In addition, about the form of the partition wall 2e and the form of an accommodating part, of course, it is not limited to the thing of the said embodiment, The partition wall which forms in the container main body 2 diagonally (diagonal), or has an intersection part By doing, the bending of the container main body 2 which arises when opening the lid body 1 which fits firmly can be further reduced. That is, as shown in FIG. 7, when only one end side of the partition wall 2 e ′ provided diagonally is bifurcated to have three accommodating portions, or as shown in FIG. This is the case where a plurality of partition walls 2e "along one direction and the second direction in the long side direction are formed in a deformed lattice shape having two or more intersections. 9A to 9F may be adopted on the basis of a structure extending to the outer edge portion (wall surface), and a structure extending to an adjacent outer edge portion via a corner portion, The layout can be freely laid out in terms of the amount and type of items (rice and side dishes) to be accommodated, and also from the viewpoint of design.

  Further, as shown in FIG. 10, the outer shape of the entire packaging container is also (A) a square type (including one rounded at least one corner), (B) a square type (one rounded at least one corner). ), (C) a quadrangle with two opposite corners cut out (including those with at least one cut out), (D) a pentagon, (E) a hexagon, (F) an octagon, etc. Any polygonal shape can be adopted. Further, an elliptical shape and a circular shape are not excluded from the present invention.

  Subsequently, an embodiment of the fitting structure of the engaging portions 1d and 2d of the lid 1 and the container main body 2 will be described with reference to FIGS. FIG. 11 is a perspective view showing a longitudinally cut end surface of a packaging container, and shows a part of a circular packaging container. The basic structure of the container body 2 is the above-described rectangular packaging. As with the container, the container 3 is composed of a storage part 3 for stored items, a bottom surface 4 of the storage part 3, and a wall surface 5 rising around the bottom surface 4. As an important configuration of the present invention, a flange portion 6 that expands outward from the wall surface 5 is formed, a peripheral wall portion 7 is formed in an annular shape downward from the entire circumference of the outer peripheral edge of the flange portion 6, and the peripheral wall portion 7 A flange 8 for lid fitting is formed from the outer side toward the outer side, continues to the reverse tapered surface 10 through the rounded portion 9, and a folded portion 11 is formed from the reverse tapered surface 10 toward the outer side. Since the rounded portion 9 is a configuration necessary for forming the reverse tapered surface 10, the curvature of the rounded portion is not particularly limited. Further, since it is important that the reverse tapered surface 10 appears with respect to the lid fitting flange portion 8, specifically, an angular configuration may be used instead of a round shape. Thus, the rounded portion in the present invention refers to an element for the reverse tapered surface to continue from the lid fitting flange portion 8.

  In addition, about the flange part 6 and the surrounding wall part 7 which were shown to this embodiment, it may abbreviate | omit depending on the contents with respect to the container main body 2. FIG. That is, a configuration in which the lid fitting flange portion 8 is directly connected from the wall surface 5 is also included in the present invention.

  Next, the configuration of the lid 1 will be described. The lid 1 is basically composed of a top plate 21 and a lid wall 22 that continues downward from the periphery of the top plate 21. As an important configuration, the lid flange portion 24 expands outward from the lower edge portion 23 of the lid body wall 22, and corresponds to the rounded portion 9 of the container body 2 from the outer periphery of the lid flange portion 24. Then, the lid round portion 25 is provided, and the lid reverse taper surface 26 extends from the lid round portion 25, and further continues to the folded surface 27. In addition, it is preferable that the round shape of the lid round portion 25 substantially coincides with the round portion 9 of the container body. However, if the container body 2 and the lid body 1 can be reliably fitted, it is necessary to completely match. Absent.

  12 is a partial cross-sectional view showing only the engaging portion of the container main body 2, FIG. 13 is a partial cross-sectional view of the lid 1, and FIG. 14 is a diagram in which the lid 1 is engaged with the container main body 2. It is a partial sectional view showing a state. Here, the engagement state of the container body 2 and the lid body 1 shows a state in which the round shape of the rounded portion 9 of the container main body and the round shape of the lid rounded portion 25 coincide with each other. There is no need to match. In this state, an important configuration is that the cover reverse taper surface 26 is engaged with the reverse taper surface 10 of the container body 2 so that both are closely engaged. The length of the taper surface 10 and the length of the lid reverse taper surface 26 need not be strictly limited. In addition, as shown in FIG. 14, the lower end peripheral part of the cover body 1 is made so that the cut end 28 of the folding surface 27 formed on the lid body 1 does not exceed the folded section 11 formed on the container body 2. It is possible to prevent the lid from opening the lid by inadvertently hitting (cut end 28) with a human finger.

  In the description of the present embodiment, the rounded portion 9 formed on the container body 2 and the reverse tapered surface 10 continuous thereto, the lid rounded portion 25 formed on the lid 1, and the lid reversely tapered surface 26. However, what is necessary is that the container body 2 and the lid body 1 are intimately engaged with each other by these configurations. Therefore, the present invention also contemplates that each of them is provided intermittently at a corresponding position in the outer periphery, or intermittently formed on the entire periphery on one side and on the outer periphery on the other.

  Next, a further embodiment of the engagement portion between the container body 2 and the lid 1 will be described with reference to FIGS. 15 and 16, and the portions denoted by the same reference numerals as in the previous embodiment indicate the same portions. The difference from the previous embodiment as a configuration is that the folded portion 11 of the container body 2 is constituted by a vertical folded portion 11a vertically falling from the lower end of the reverse tapered surface 10 and a horizontal folded portion 11b. The basic functions are not different from the previous embodiment. Here, the undercut depth D of the reverse taper surface 10 of the container body 2 and the lid reverse taper surface 26 is set to 0.5 to 4.0 mm, and the reverse taper surfaces 10 and 26 are perpendicular to each other. Set to 30-90 degrees. In addition, although 90 degree | times is substantially equivalent to a return here, it is preferable to make it the state which does not completely overlap a folding | returning part but a space | gap exists. Therefore, it is precisely less than 90 degrees. Thus, in order to deepen the undercut, a slide core is used for a mold used for sheet molding. If the depth D is shallower than 0.5 mm, the lid can be easily removed as in the conventional problem. On the other hand, if the depth D is too deep, it is necessary to apply an extra force when the lid is opened. Then, the depth D is set in this way. Regarding the depth D, the depth of the reverse taper surface 10 and the depth of the lid reverse taper surface 26 may be completely matched. However, by making the depth of the cover reverse taper surface 26 sufficiently deep, The extension length may be relatively shorter than the tapered surface 10, that is, it may be somewhat shallower. As for the taper angle, if the angle is smaller than 30 degrees, the reverse taper surface 10 becomes too high to make the depth D deep, the stackability of the container body deteriorates, and the transfer to the transport box during transport becomes difficult. The capacity cannot be increased. Therefore, the angle is set to an angle exceeding 30 degrees.

  Next, FIGS. 17 and 18 show still another embodiment of the fitting structure. The difference from the above embodiment is that the rounded portion 9 and the lid of both the container body 2 and the lid body 1 are as follows. The whole body round part 25 is being changed to vertical plane parts 9 'and 25'.

  As described above, the vertical plane portion is formed between the lid flange portion 24 and the lid reverse tapered surface 26 in the lid body 1 and between the lid fitting flange portion 8 and the reverse tapered surface 10 in the container body 2. By forming each of 9 ′ and 25 ′, as shown in FIG. 18, the lid body 1 is continuously tapered until the lid body 1 is completely detached from the state in which the lid body 1 is fitted to the container body 2, and the reverse body taper surface 10 of the lid body is reversely tapered. Maintain surface contact with surface 9. Therefore, in this case, the fitting strength is high.

  On the other hand, in the above-described embodiment in which the vertical flat portions 9 ′ and 25 ′ are rounded portions 9 and 25, the lid reverse taper surface 26 is in surface contact with the reverse taper surface 10 until halfway. Then, as shown in FIG. 19, since the lid reverse tapered surface 26 is in point contact with the rounded portion 9 (lower side) of the container body 2, the vertical plane portions 9 ′ and 25 ′ shown in FIGS. The fitting strength is lower than the above.

  The rounded portion 9 described above has a semicircular arc shape and is configured to connect the lid fitting flange portion 8 and the reverse tapered surface 10 alone, but as shown in FIG. If only the upper side on the fitting flange portion 8 side is formed as an upper semicircular arc-shaped portion 9a so as to be continuous with the reverse tapered surface 10 through a vertical plane portion 9 'from here, a lid fitting flange portion in the container body 2 8 and the reverse taper surface 10, even if part of the rounded portion is included, the lid body 1 is continuously removed from the state in which the lid body 1 is fitted to the container body 2. Since the surface contact with the reverse tapered surface 9 is maintained, the same fitting strength as that of FIG. 17 can be obtained. On the other hand, as shown in FIG. 21, only the lower side of the reverse tapered surface 10 of the container body 2 is a lower quarter arcuate portion 9b, and as shown in FIG. 22, the reverse tapered chamfered portion 9c In this case, even if the vertical flat surface portion 9 ′ is interposed between the lid fitting flange portion 8 and the reverse taper surface 10, the lid reverse taper surface 26 is formed in the lower quarter at the final stage of fitting release (lid opening). Since it is in point contact with the arcuate part 9b, the fitting strength is equivalent to that of the semicircular arcuate round part 9.

  On the other hand, the lid body 1 and the container main body 2 immediately after manufacturing are stored and transported by stacking the lid bodies 1 and the container main bodies 2 together. As shown in FIG. 23, the rounded portions 9 and 25 are in point contact, have low frictional resistance, and poor stability in a stacked state.

  Comparing this with the case where all of the rounded portions 9 and 25 are changed to the vertical plane portions 9 ′ and 25 ′, as shown in FIG. 8 and the lid flange portion 24 have effective lengths L1 and L2, respectively, so that L1 <L2, so that not only from the viewpoint of fitting, but also from the viewpoint of stacking, the rounded portions 9 and 25 are all formed as vertical plane portions 9 ′. It is advantageous to change to 25 '.

  This can be said to be common to the stability in the temporarily placed state in which the lid body 1 is simply put on the container body 2 before fitting for closing. That is, in the container body 2 and the lid body 1 formed by extending the folded portion 11 and the folded surface 27 as shown in FIGS. 15 and 16 from the reverse tapered surface 10 and the lid reverse tapered surface 26, As shown, by forming a planar inclined surface 9d having the same inclination angle as the folded surface 27 of the lid 1 between the lid fitting flange 8 and the vertical plane portion 9 ′ of the container body 2, Since the folded surface 27 of the lid 1 is in surface contact with the inclined surface 9d of the container body 2, the temporarily placed state where the lid 1 is placed on the container body 2 is stabilized.

  On the other hand, when the inclined surface is a rounded inclined surface 9e, as shown in FIG. 26, the folded surface 27 of the lid 1 is in point contact with the inclined surface 9e. May lack stability.

  Up to now, the configuration of the packaging body in which the container body 2 is provided with two or more accommodating portions by the partition wall 2e and the fitting structure of the lid body 1 to the container body 2 has been described in detail. With respect to the packaging container of the present invention, FIG. 27 shows the result of the movement (rampage) test of the contents when the lid is opened. The test involves preparing five types of sample containers having different vertical (D) / horizontal (W) ratios for each of the packaging containers shown in FIG. The lid was opened five times for each, and it was determined whether or not the food contained in the contained food could be visually observed even once. On the other hand, FIG. 28 shows the result after conducting the same test on a packaging container without a partition wall.

  As shown in these results, in the packaging container without a partition wall, in most of the samples, the rampage of the contents could be visually observed almost every time, whereas in the packaging container according to the present invention, On the other hand, the rampage of the contents was hardly visible. Therefore, in the packaging container having a partition wall according to the present invention, the container body 2 is reinforced by the partition wall to prevent bending and twisting such that the contents move when the lid 1 to be fitted is opened. It was confirmed.

  FIG. 29 shows the container main body in comparison with the packaging container having no partition wall for a plurality of samples having different vertical (D) / horizontal (W) ratios of the packaging container having a partition wall according to the test result. The ratio which can reduce the bending of (including the bottom face) is shown. Since there was a remarkable effect in the range of (A) excluding 1: 1.9 in FIG. 5B, there is a partition wall having an aspect ratio in the range of 1: 1.2 to 1: 1.7. A packaging container is preferred.

  In addition, although detailed test results are omitted, in the case of a packaging container having an annular outer shape, the container body formed with a partition wall could not be visually observed in the contents. Therefore, a packaging container with a partition wall has a ring main body (mainly the bottom surface of the main body) when the lid is opened compared to a circular packaging container without a partition wall, even if it has an annular outer shape other than a square. It was possible to reduce twisting and bending.

  As a specific example of the packaging container having such an annular outer shape, there is a circular hors d'oeuvre container shown in FIG. This hors d'oeuvre also includes a container main body 100 and a lid 200, and the basic configuration of each is the same as that of the previous embodiment of the rectangular packaging container except that the outer shape is circular.

  That is, also in this hors d'oeuvre container, the container body 100 has a bottom surface 101, a wall surface 102 rising from the periphery of the bottom surface 101, and a lid fitting flange portion 103 facing outward with respect to the wall surface 102. The lid fitting flange 103 is provided with the engaging portion 104 having the above-described fitting structure.

  Further, the basic configuration of the lid 200 also includes a top plate 201, a lid wall 202 that continues downward from the periphery of the top plate 201, and a lid that expands outward from the lower edge of the lid wall 202. The lid flange portion 203 is provided with an engagement portion 204 that engages with the engagement portion 104 of the container main body 100.

  The engaging portions 104 and 204 may be ones that continue to the reverse tapered surface from the lid fitting flange portion 103 through the rounded portion, but instead of the rounded portion, reversely through the vertical plane portion. It is preferable to adopt a continuous taper surface because stronger fitting can be realized. What is important in this hors d'oeuvre container is that the container body 100 and the lid body 200 correspond to each other in the depth of the reverse tapered surface, thereby realizing reliable engagement.

  Another important structure is that the container main body 100 has a plurality of partition walls for partitioning a plurality of storage portions for storing the contents therein, as shown in FIG. The partition wall in this embodiment is a linear partition wall 105 that rises from the container bottom surface 101 and abuts against the wall surface 102 and is formed from the outer edge portion of the container body 100 toward the center side.

  Furthermore, in the present embodiment, an annular partition wall 106 is further provided in the center of the container body 100, and a donut-shaped annular region between the annular partition wall 106 and the outer edge (wall surface 102) of the container body 100 is provided with 5 A linear partition wall 105 is provided radially at equal intervals to constitute a partition wall. With this configuration, in this container body 100, a central circular storage portion 107 and five fan-shaped storage portions 108 around it form a storage portion for storing a total of six types of prepared foods. ing. Moreover, these accommodating part sides are formed with the aluminum vapor deposition film sheet. However, the annular partition wall 106 may be omitted, and the accommodating portion may be partitioned by the linear partition wall 105 alone. In this case, in the case of three or more linear partition walls 105, the accommodating portion is partitioned, and it is a matter of course that the respective tips are connected.

  In addition, although the code | symbols 109 and 205 in FIG.30 * 31 are the knob | pick parts used when opening a lid, the details are explained in full detail separately.

  And as shown in FIG. 32, the bottom face 101 of the container main body 100 is inclined so as to become higher from the outer edge portion toward the central portion, thereby ensuring a sense of volume and the visibility of food.

  In addition, as shown in FIG. 32, the linear partition wall 105 also has an inclination angle that curves inward from the outer edge portion of the container body 100 toward the center portion along the inclination of the bottom surface 101. The central portion has an inwardly curved shape.

  Such a configuration of the partition wall also reinforces the container main body 100 in the hors d'oeuvre container, and prevents bending and twisting such that the contents move when the lid 200 to be fitted is opened. Further, in the embodiment, the linear partition wall 105 has a substantially mountain shape spreading toward the bottom surface 101 as shown in FIG. More specifically, the left and right slopes are formed in a two-step slope 105a, and the center of the top is a concave strip 105b that is recessed toward the bottom 101. In addition, this shape is gradually changed from the central part of the container body 100 toward the outer edge part, and the concave part 105b is shallow near the central part, whereas the concave part 105b becomes deep near the outer edge part, In addition, a gentle slope 105c is formed between the two-step slope 105a and the top near the outer edge. As a result, the torsional strength on the outer edge side of the container main body 100 is increased, and the twisting and bending of the container main body 100 can be further reduced when the fitting is released (opened).

  In addition, in the circular packaging container like the hors d'oeuvre container of this embodiment, since the corner | angular part does not exist in an outer edge part like the rectangular packaging container, it is preferable to specify the instruction | indication part of a lid opening. If there is no clear opening instruction part, the consumer is expected to open the lid while forcing the center of the hors d'oeuvre container, so that the center part of the container body 100 is pushed down, and conversely, the outer edge part is raised. This is because, as soon as the lid 200 is deformed and the fitting of the lid body 200 is released, there is a possibility that the contents of the container main body 100 may pop out due to the momentum restored to the original shape.

  Therefore, in the present embodiment, as described above, the knobs 109 and 205 serving as the opening start points are provided on both outer edges of the container body 100 and the lid body 200. In addition, since something may be caught on the knobs 109 and 205 and the lid may be inadvertently opened or an accident may occur in which the product is dropped on the floor, from the viewpoint of solving these problems, The configuration of the knobs 109 and 205 will be described in detail.

  Since the knobs 109 and 205 in the hors d'oeuvre container can be commonly used as the knobs 1j and 2k in the lunch box, the following embodiments will be described with new reference numerals.

  FIG. 34 is a cross-sectional view of the main part showing a state in which the lid 302 is closed with respect to the container main body 301 of the packaging container employing the knob of the present invention. The container main body 301 and the lid 302 are externally fitted. Closed. A flange surface 304 is formed in a circumferential shape on the outer peripheral portion 303 of the container main body 301, and a peripheral wall 305 falls from the flange surface 304 in a substantially vertical direction. Reference numeral 306 denotes a fitting receiving surface formed in an inward annular shape in the middle of the peripheral wall 305. A receiving piece 308 bulges from a part of the lower surface of the peripheral wall 305 via an arc-shaped connecting portion 307. Further, the protruding portion 309 seen on the front end side of the receiving piece 308 is formed so as to surround the periphery of the receiving piece 308 excluding the outer periphery of the container main body 301. On the other hand, a flange portion 310 corresponding to the flange surface 304 of the container main body 301 is also formed on the lid 302, and an annular fitting convex portion 312 is formed on the downward wall surface 311 from the flange portion 310. The fitting convex portion 312 of the lid 302 is configured to be externally fitted to the receiving surface 306. A knob 313 bulges outward from a part of the outer periphery of the lid 302 and is accommodated inside the protruding portion 309 of the receiving piece 308 of the container body 301 when the lid is closed. 314 is a number of fine irregularities provided on the surface of the knob 313 as appropriate. Note that the height of the protruding portion 309 is set to be higher than the thickness of the knob portion 313. In this way, the knob portion 313 does not protrude from the protruding portion 309, and a finger or the like is not accidentally caught.

  FIG. 35 shows a state in which the knob 313 formed on the lid 302 is accommodated with respect to the receiving surface 307 formed on the container body 301 when the lid is closed, and the same numbers as those in FIG. Yes. 36 and 37 show the container main body 301 and the lid 302 independently. In this embodiment, the shape of the entire container is circular in plan view. However, the shape of the entire container is not limited to a circle, and may be a rectangle, an ellipse, or a polygon such as a hexagon or an octagon. It does not affect.

  In the packaging container configured as described above, when closing the lid, the lid body 302 corresponds to the container body 301, and the knob 313 of the lid body 302 corresponds to the receiving piece 308 of the container body 301. At the rotational position, the lid is closed in the same manner as a normal outer fitting container. Once the lid is closed, the knob 313 is accommodated at a position lower than the protrusion 309 formed around the receiving piece 308. Therefore, when no force is applied, the knob 313 It wo n’t catch you. Next, when the lid is opened, first, when a downward force is applied to a part of the receiving piece 308 of the container main body 301, preferably the tip of the protruding portion 309, the receiving piece 308 is easily connected via the connecting portion 307. Deforms to bend downward. If it does so, the knob | pick part 313 of the cover body 302 will detach | leave relatively from the receiving piece 308 by this deformation | transformation, and can hold | pinch the knob | pick part 313 with a finger | toe. Next, the knob 313 can be secured with the fingers of one hand, and the receiving piece 308 can be secured with the fingers of the other hand, and the lids can be easily opened by pulling them apart in the lid opening direction.

  In the present embodiment, the container body 301 and the lid body 302 have been described as being configured to be closed by external fitting. However, the fitting structure already described for the lunch box container and the hors d'oeuvre container is employed. In addition, the receiving piece 308 formed on the container body 301 is formed through the connecting portion 307 to facilitate deformation. However, if the receiving piece 308 can be deformed downward with a small force, the connecting portion 307 may be omitted. In addition, an essential configuration in the present invention is that the knob portion 313 does not protrude from the outer periphery of the receiving piece 308. Therefore, the outer shape of the knob portion 313 and the outer shape of the receiving piece 308 do not need to be similar to each other. The shape portion 309 may be omitted as necessary. Furthermore, although this embodiment demonstrated the case where a knob | pick part was formed in a cover body and the receiving piece was formed in the container main body, conversely, forming a knob | pick part in a container main body and a receiving piece in a cover body is also this invention. Included in the range.

  The knob 313 and the receiving piece 308 are appropriately provided with a large number of fine irregularities. However, when a water droplet or the like enters between the knob 313 and the receiving piece 308, both of them stick tightly with the water drop. One of the purposes is to avoid this, but unevenness may be omitted if, for example, a gap is formed between the knob 313 and the receiving piece 308. However, when anti-slip is expected when picked with a finger, it is preferable to provide unevenness, but the shape of the unevenness is not particularly limited, but the anti-slip function such as knurl shape, dot shape, multiple stripe shapes, etc. Any shape that can be exhibited is acceptable.

  By the way, as shown in FIGS. 35 and 37, in this embodiment, the both end receiving pieces 308 of the projecting portion 309 continue to incline downward gradually. When configured in this way, even when the positions of the container body 301 and the lid 302 are shifted during the closing operation, the knobs 313 are rotated relative to each other to adjust the knob 313 to the exact position of the receiving piece 308. Can be rotated smoothly. In other words, since the knob 313 is regulated by the inner wall of the projecting portion 309 once the alignment is performed, it does not rotate carelessly even when a force in the rotational direction is applied. However, these relations function in the case where the fitting portion between the container main body 301 and the lid 302 has a circular shape that fits at any angle in the rotation direction.

  So far, the embodiment according to the packaging container in which the fitting structure and the partition wall are inseparable is described, and as its effect, it has been described in detail that twisting and bending of the container body at the time of opening is reduced, Several embodiments of a new packaging container having an intermediate container in the container body regardless of the presence or absence of the partition wall will be described below as having the same effects as the partition wall. In addition, what was already demonstrated in detail shall be employ | adopted about a fitting structure.

[First embodiment of packaging container including middle container]
As shown in FIG. 38, one embodiment of a new packaging container 400 including an intermediate container includes a container main body 403 and an intermediate container placed on the container main body 403 in a state of being engaged with the container main body 403. 405, and a lid 407 that covers the container main body 403 and the middle container 405.

  The container main body 403 includes a container bottom surface 32 and a container wall surface 31 erected from the outer edge of the container bottom surface 32. In a space surrounded by the container bottom surface 32 and the container wall surface 31, a storage portion 36 that stores a storage object is formed. The accommodating part 36 accommodates food etc., for example as an accommodation thing. In the present embodiment, cooked food (hereinafter referred to as “cooking”) is stored in the storage unit 36 as a storage item. Below, the packaging container 400 for hors d'oeuvre that accommodates at least two kinds of dishes will be described as an example. In the example shown in FIG. 38, the packaging container 400 is formed in a circular shape in plan view.

  As shown in FIG. 38, the container main body 403 has a partition wall 33 that partitions the storage portion 36 that stores the storage items into a plurality of portions. In the present embodiment, the accommodating portion 36 has a first accommodating space 36A and a second accommodating space 36B. The first accommodation space 36 </ b> A and the second accommodation space 36 </ b> B are partitioned by a partition wall 33.

  The partition wall 33 is erected from the container bottom surface 32. In the example shown in FIG. 38, the partition wall 33 includes an annular partition wall 34 that is formed in an annular shape and provided on the center side of the container body 403. Here, the partition wall 33 is formed in an annular shape with the upper surface having a width in the radial direction. In the present embodiment, the partition wall 33 includes a plurality of linear partition walls 35 extending radially from the annular partition wall 34 in addition to the annular partition wall 34. In the example illustrated in FIG. 38, the partition wall 33 includes one annular partition wall 34 and five linear partition walls 35. However, the number of the annular partition walls 34 is not limited to one, and a plurality of annular partition walls 34 may be formed concentrically. The annular partition wall 34 includes an annular inner peripheral wall 34B facing the inside of the container main body 403, an annular outer peripheral wall 34A facing the outer side of the container main body 403 and covering the annular inner peripheral wall 34B from the outside, and an annular inner peripheral wall 34B. An annular ceiling portion 34D connecting the upper end portion of the annular outer peripheral wall 34A and the upper end portion of the annular outer peripheral wall 34A. The annular ceiling portion 34D has a partition wall outer edge portion 34D1 at a boundary portion with the annular outer peripheral wall 34A. In the present embodiment, the partition wall outer edge portion 34D1 corresponds to “the outer edge of the annular partition wall”. In the following, the direction from the outer edge of the container body 403 toward the center is referred to as “inward” or “inside”, and conversely, the direction from the center toward the outer edge is referred to as “outward” or “outer”. ".

  The second storage space 36 </ b> B is provided on the center side of the container main body 403. The second housing space 36B is configured by a space surrounded by a container-side second bottom 32B provided on the center side of the container body 403 in the container bottom surface 32, and an annular inner peripheral wall 34B. As described above, when a plurality of annular partition walls 34 are formed, a plurality of second accommodation spaces 36B are also provided.

  The first accommodation space 36A is provided around the second accommodation space 36B. In the example shown in FIG. 38, five first accommodation spaces 36A are provided around one second accommodation space 36B. 36 A of 1st accommodation space is the container side 1st bottom part 32A provided in the circumference | surroundings of the container side 2nd bottom part 32B among the container bottom surfaces 32, annular outer peripheral wall 34A, and several linear division wall 35 (this example 2). And a space surrounded by the container wall surface 31.

  A table can be gorgeously decorated by storing the same or different types of dishes in the first storage space 36A and the second storage space 36B. Such a packaging container 400 is suitable, for example, when a dinner is held by a large number of people.

  As shown in FIGS. 38 and 39, the middle container 405 is placed on the container body 403. In the present embodiment, the middle container 405 is placed on the annular partition wall 34 in a state of being accommodated inside the partition wall outer edge portion 34D1. As shown in FIG. 38, the middle container 405 has an engaging portion 53B, and the container main body 403 has an engaged portion 34C that engages with the engaging portion 53B.

  As shown in FIGS. 38 and 40, the engaged portion 34 </ b> C is formed on the upper side of the annular partition wall 34. In the present embodiment, the engaged portion 34C is formed in a part of a region where the annular ceiling portion 34D is formed, and more specifically, is formed in an inner portion of the annular ceiling portion 34D (see FIG. 40 etc.). In the example shown in FIG. 40, the engaged portion 34C is bent outwardly from the gently tapered portion 34C1 that gently slopes downward as it goes inward, and from the inner end of the gently tapered portion 34C1. It has a to-be-engaged tapered portion 34C4 that inclines downward as it goes, and a to-be-engaged recess portion 34C5 that is formed continuously with the to-be-engaged tapered portion 34C4 and that is recessed outward.

  In the present embodiment, the engagement between the engaging portion 53B and the engaged portion 34C is internal fitting. As shown in FIGS. 38 and 40, the lower end of the engaging portion 53B is guided from above to the engaged tapered portion 34C4 by the gently tapered portion 34C1 of the engaged portion 34C, and then the engaged recessed portion 34C5. Lock to. In a state where the lower end of the engaging portion 53B is locked to the engaged recessed portion 34C5, the engaged tapered portion 34C4 and the engaged recessed portion 34C5 press the lower end of the engaging portion 53B inward to thereby It functions as a stopper for the joint portion 53B. In this way, the engaging portion 53B and the engaged portion 34C are internally fitted. Thereby, the engaging part 53B and the to-be-engaged part 34C can be firmly fitted. And the sealing property of the 2nd accommodation space 36B which is the space inside the engaging part 53B (engaged part 34C) can be made high, for example, when food with much moisture is accommodated in the 2nd accommodation space 36B as an accommodation thing. In addition, leakage of juice can be suppressed.

  The middle container 405 covers the second accommodation space 36 </ b> B of the container body 403 from above and is placed on the container body 403. As shown in FIGS. 38 and 39, the middle container 405 has an inner peripheral wall 52 and a bottom portion 51 that form a concave accommodation space 57 for accommodating the contents. In the example shown in FIG. 40, the storage space 57 is configured as an upper storage space 57 disposed above the second storage space 36B in a state where the middle container 405 is placed on the container main body 403. In the present embodiment, the middle container 405 is transparent. Thereby, the second storage space 36 </ b> B disposed below the upper storage space 57 can be viewed from the outside in a state where the middle container 405 is placed on the container main body 403. For example, when a dish (food) is stored in the second storage space 36B, the dish can be visually recognized from the outside, and a visual satisfaction can be given to the consumer. Therefore, consumers can be motivated to purchase at the store, and the dining table can be improved at home.

  As shown in FIG. 40, the middle container 405 has an opening 54 and an opening edge 54 </ b> A surrounding the opening 54. The opening 54 is formed continuously with the upper accommodation space 57. The accommodation is accommodated in the upper accommodation space 57 through the opening 54. In the example shown in FIG. 38, the opening 54 and the opening edge 54A are formed in a circular shape in plan view. Thereby, it becomes easy to accommodate a thing in the upper accommodation space 57 from any direction around the middle container 405. In addition, the contents accommodated in the upper accommodation space 57 can be easily taken out from any direction around the middle container 405, which is suitable for, for example, a dinner with a large number of people.

  As shown in FIG. 40, the middle container 405 has an outer peripheral wall 53 that surrounds the inner peripheral wall 52. In the present embodiment, the inner peripheral wall 52 is configured to face inward. And the outer peripheral wall 53 is comprised so that it may face outward. The inner peripheral wall 52 and the outer peripheral wall 53 are connected to each other by a top portion 56 formed at the upper end of the middle container 405. The inner peripheral wall 52 is disposed inside the top portion 56, and the outer peripheral wall 53 is disposed outside the top portion 56. In the example shown in FIG. 39, the inner peripheral wall 52 and the outer peripheral wall 53 are formed in a circular shape in plan view.

  In the example shown in FIG. 40, the outer peripheral wall 53 is formed in a tapered shape that spreads outwards downward. In the present embodiment, the outer peripheral wall 53 has a long tapered portion 53A that spreads outward toward the bottom. Further, the inner peripheral wall 52 is formed in a tapered shape that spreads inwardly downward. In the present embodiment, the inner peripheral wall 52 has a short taper portion 52A that is formed shorter than the long taper portion 53A and spreads inwardly downward. Accordingly, it is possible to improve the shape retention of the inner container 405 when an external force is applied to the outer peripheral wall 53 and the inner peripheral wall 52 from above.

  In the example shown in FIG. 40, the inner peripheral wall 52 has an inner peripheral base end recess 52 </ b> B formed continuously from the short taper portion 52 </ b> A at the base end of the inner peripheral wall 52. In the present embodiment, the inner peripheral proximal end recess 52B is formed in a shape that is recessed downward. The inner peripheral base end recess 52 </ b> B is formed so as to be annularly continuous along the inner peripheral wall 52. Thereby, the intensity | strength of the base end part of the inner peripheral wall 52 can be improved. Further, for example, when food containing water is stored in the upper storage space 57, the water exuded from the food can be flowed to the inner peripheral proximal recess 52B, and the food can be prevented from being immersed in water. As a result, it is possible to suppress the food texture and flavor of the food stored in the upper storage space 57 from being impaired.

  As shown in FIGS. 38, 40, etc., an engaging portion 53 </ b> B of the middle container 405 with the container body 43 is formed on the outer peripheral wall 53. In the present embodiment, the engaging portion 53 </ b> B is formed over the entire circumference of the outer peripheral wall 53. Further, the engaging portion 53 </ b> B is formed at the lower end portion of the outer peripheral wall 53. In the example shown in FIG. 40, the engaging portion 53B is continuously formed below the long tapered portion 53A. The engaging portion 53B is formed continuously with the engaging bulging portion 53B3 that bulges downward and outward from the base end of the long tapered portion 53A, and the engaging bulging portion 53B3, and as it goes upward. It has an engagement taper portion 53B4 that narrows inward, and an outer flange portion 53B5 that is folded outward from the engagement taper portion 53B4 and extends outward.

  In the present embodiment, the engagement bulging portion 53B3 is guided from above to the engaged tapered portion 34C4 by the gently tapered portion 34C1 of the engaged portion 34C, and then locked to the engaged recessed portion 34C5. In a state where the engagement bulge portion 53B3 is locked to the engaged recess portion 34C5, the engagement bulge portion 53B3 is pressed inward by the engaged taper portion 34C4 and the engagement recess portion 34C5. The engagement taper portion 53B4 abuts on the engaged taper portion 34C4 and functions as a stopper for the engagement bulge portion 53B3. Therefore, the engaging portion 53B and the engaged portion 34C can be fitted more firmly. In this way, in the container that can accommodate the middle container, in the present embodiment, the middle container has a partition wall inside the container main body to define the container, and the function of reinforcing the bottom of the container main body. To complement. Therefore, twisting and bending of the container main body (bottom surface) when opening the lid that fits relatively strongly can be reduced, and the rampage of the contents can be prevented.

  In the example shown in FIG. 40, the bottom 51 is disposed above the engaging portion 53B. In the present embodiment, the bottom 51 is formed continuously with the inner peripheral wall 52 of the middle container 405, and the engaging portion 53 </ b> B is formed continuously with the outer peripheral wall 53 of the middle container 405. More specifically, the bottom portion 51 is formed on the proximal end side of the short taper portion 52A in the inner peripheral wall 52, and the engagement portion 53B is a long taper in the outer peripheral wall 53 formed longer than the short taper portion 52A. It is formed on the base end side of the portion 53A. Therefore, the middle container 405 has a bottom-up shape in which the bottom 51 is positioned above the engaging portion 53B. Thereby, the accommodation space of the 2nd accommodation space 36B arrange | positioned under the bottom part 51 can be enlarged. In addition, for example, when a dish is stored in the second storage space 36 </ b> B, it is possible to suppress the dish from adhering to the lower surface of the bottom 51. Accordingly, it is possible to suppress dirt on the lower surface of the bottom 51.

  In the present embodiment, the engaging portion 53B and the engaged portion 34C are provided so as to have a portion overlapping in the vertical direction in a state where the middle container 405 and the container main body 403 are engaged. In the example shown in FIG. 40, the engaging portion 53B and the engaged portion 34C overlap within the range of the overlapping length L2 in the vertical direction. In the present embodiment, the overlap length L2 is set to the length in the vertical direction of the engaged portion 34C. More specifically, the overlap length L2 is set to the length in the vertical direction from the upper end of the gently tapered portion 34C1 to the lower end of the engaged recess portion 34C5 in the engaged portion 34C.

  As shown in FIG. 38, the lid 407 covers the middle container 405 and the container main body 403 in a state where the middle container 405 is placed on the container main body 403. The lid body 407 is formed to cover the middle container 405 and the container main body 403 from above, and to protrude downward from the outer edge of the lid body top plate 72, while the middle container 405 and the container main body 403 are disposed outward. And a peripheral wall engaging portion 73 that is formed at the lower end of the cover body wall 71 and engages with the peripheral peripheral engaged portion 37 of the container main body 403. The shape of the lid 407 can be changed as appropriate in accordance with the shape of the container body 403. In the present embodiment, the lid body 407 is formed in a circular shape in plan view. Thereby, it can be engaged with the container body 403 formed in a circular shape in plan view. Note that the shape of the lid 407 does not depend on the shape of the middle container 405.

  In the example illustrated in FIG. 38, the lid body 407 includes a shift prevention portion 72 </ b> A that protrudes upward from the lid body top plate 72. As shown in FIG. 38, in the present embodiment, the container-side second bottom portion 32B of the container body 403 is disposed above the plurality of container-side first bottom portions 32A disposed around this. Therefore, the container bottom surface 32 has a shape in which the central side is recessed upward. For example, when a plurality of packaging containers 400 are stacked in a state where the lid 407 is mounted on the container body 403, the container body 403 of the packaging container 400 positioned above is packaged below. It is placed on the lid 407 of the container 400 for use. At this time, the displacement prevention portion 72A of the lid body 407 is fitted into the container bottom surface 32 positioned above this. Thereby, the horizontal shift of the plurality of packaging containers 400 stacked in the vertical direction can be suppressed, and the plurality of packaging containers 400 can be stacked with good stability.

  Here, when the packaging container 400 alone is viewed, some external force is applied even when the middle container 405 is not properly engaged with the container main body 403, or even when it is properly engaged. In this case, the middle container 405 may come off from the container main body 403. When the middle container 405 is detached from the container main body 403 in a state where the lid 407 is attached to the container main body 403, dishes (contained items) pop out from the upper storage space 57 or the second storage space 36B below the upper storage space 57B. Different types of dishes may be mixed between the accommodating portions 36. Such a situation is caused by the middle container 405 moving upward with respect to the container main body 403 with the lid 407 mounted on the container main body 403, and the engaging portion 53B getting over the engaged portion 34C. Arise.

  Therefore, in the present embodiment, as shown in FIG. 40, the vertical direction between the top 56 which is the upper end of the middle container 405 and the inner surface 72 </ b> F of the lid 407 with the lid 407 mounted on the container main body 403. The gap L1 is set to be smaller than the overlapping length L2 between the engaging portion 53B and the engaged portion 34C in the vertical direction. In the present example, the inner surface 72F is the lower surface of the lid top plate 72.

  According to such a configuration, even when the middle container 405 moves upward with respect to the container main body 403 with the lid body 407 mounted on the container main body 403, the engaging portion 53B is engaged with the engaged portion. The top portion 56 of the middle container 405 contacts the inner surface 72F of the lid 407 before completely overcoming (disengaging) 34C. Therefore, the state where the engaging portion 53B and the engaged portion 34C overlap each other in the vertical direction can always be maintained, and the middle container 405 is detached from the container main body 403 with the lid 407 mounted on the container main body 403. This can be suppressed.

  Further, in the present embodiment, in the overlapping length L2 between the engaging portion 53B and the engaged portion 34C, the vertical direction from the upper end portion of the engaged tapered portion 34C4 to the lower end portion of the engaged recessed portion 34C5 is determined. The length is set to the second overlap length L2a. As shown in FIG. 40, the gap L1 is set to be smaller than the second overlap length L2a. Accordingly, even when the middle container 405 moves upward with respect to the container main body 403 with the lid 407 mounted on the container main body 403, the engagement bulging portion 53B3 of the engagement portion 53B is engaged. There is no detachment from the engaged recess 34C5 of the joint 34C. Accordingly, the middle container 405 can be prevented from being displaced from the container main body 403 in a state where the lid body 407 is mounted on the container main body 403. In this case, naturally, the middle container 405 can be prevented from being detached from the container main body 403. .

  As described above, in the packaging container 400, the engaging part 53 </ b> B of the middle container 405 with the container main body 403 is formed on the outer peripheral wall 53. Therefore, the engaging portion 53B can be engaged with the container body 403 while visually recognizing the engaging portion 53B. For example, when the middle container 405 and the container main body 403 are engaged in the state where the food is stored in the upper storage space 57 of the middle container 405, these are engaged while visually confirming the engaging portion 53B. be able to. Therefore, it is not necessary to use a nerve particularly with respect to the engagement between the middle container 405 and the container main body 403. For example, the middle container 405 and the container main body 403 are taken care not to spill food stored in the upper housing space 57. Can be easily engaged.

  Further, since the engaging portion 53B is formed on the outer peripheral wall 53, when the middle container 405 and the container main body 403 are engaged, the middle container 405 is disposed on the outermost wall 53 disposed on the outermost side of the middle container 405. It is in a state supported by the position. Therefore, for example, even if the storage position of the dish stored in the second storage space 36B of the middle container 405 is biased, the middle container 405 can be satisfactorily stabilized.

  Note that the packaging container 400 (container main body 403, middle container 405, and lid 407) of the present embodiment can be manufactured using, for example, a sheet material made of a thermoplastic resin as a raw material. Examples of thermoplastic resins include polyolefin resins (polyethylene resins, polypropylene resins, etc.), polystyrene resins (impact polystyrene resins, etc.), and polyester resins (polyethylene terephthalate resins and modified with heat resistance). Polyethylene terephthalate resin, etc.) can be employed. As the sheet material, a foamed sheet material or a non-foamed sheet material can be used, and a laminated sheet obtained by laminating a film or the like on these can also be used. The packaging container 400 can be molded by thermoforming using the above-described various thermoplastic resin sheets. As specific methods for thermoforming, various methods such as vacuum forming, pressure forming, vacuum / pressure forming, and hot plate forming can be employed.

[Second embodiment of packaging container including middle container]
Next, a second embodiment of the packaging container will be described. In the first embodiment, the example in which the engagement between the engaging portion 53B of the middle container 405 and the engaged portion 34C of the container main body 403 is inward fitting has been described. However, in the second embodiment, the engagement between the engaging portion 53B and the engaged portion 34C is an external fitting. Hereinafter, the packaging container according to the second embodiment will be described with reference to FIG. In addition, since it is the same as that of 1st embodiment about the point which is not demonstrated especially, description is abbreviate | omitted.

  In the example shown in FIG. 41, the engaged portion 34C has an engaged protruding portion 34C6 that is formed continuously outside the gently tapered portion 34C1 and protrudes outward. In the present embodiment, the engaged protrusion 34C6 is formed over the entire outer periphery of the gently tapered portion 34C1.

  In the example shown in FIG. 41, the engaging portion 53B has an engaging hook portion 53B6 that is hooked and engaged with the engaged protrusion 34C6. The engagement hook 53B6 is formed in a hook shape that curves outward at the lower end of the outer peripheral wall 53 of the middle container 405. In the state where the engaging hook 53B6 is acting inwardly, the engaging protrusion 53C6 is hooked from the outside, whereby the engaging portion 53B of the middle container 405 and the engaged portion 34C of the container main body 403 are engaged. And fits outside.

  According to the second embodiment, the engaging portion 53B and the engaged portion 34C can be fitted with a simple structure. In addition, when placing the container after the middle container 405 is attached to the container main body 403, the engaging portion 53B can function as a stopper so that the posture of the middle container 405 does not collapse due to the influence of wind or the like. Therefore, the workability of placing the medium container 405 can be improved.

[Third embodiment of a packaging container including a middle container]
Next, a third embodiment of the packaging container will be described. In each of the above embodiments, the example in which the engaging portion 53B of the middle container 405 and the engaged portion 34C of the container main body 403 are fitted inside or outside has been described. However, in the third embodiment, the middle container 405 is placed on the container main body 403 in a state where the engaging portion 53B and the engaged portion 34C are not fitted. Hereinafter, the packaging container according to the third embodiment will be described with reference to FIG. In addition, since it is the same as that of 1st embodiment about the point which is not demonstrated especially, description is abbreviate | omitted.

  In the example shown in FIG. 42, the engaged portion 34C is formed continuously with the outer tapered portion 34C7 that is inclined downward as it goes outward from the apex portion of the gently tapered portion 34C1, and the outer tapered portion 34C7. And an outer mounting portion 34C8 projecting in the direction. And the middle container 405 is attached to the container main body 403 in the state in which the lower end part of the engaging part 53B was mounted in the outer mounting part 34C8. In this case, as shown in FIG. 42, the overlapping length L2 is set to the vertical length of the outer tapered portion 34C7.

[Other Embodiments of Packaging Container with Medium Container]
(1) In the first and second embodiments described above, an example in which the engagement between the engaging portion 53B of the middle container 405 and the engaged portion 34C of the container main body 403 is an inner fitting or an outer fitting is described. did. However, the present invention is not limited to such an example. The engagement between the engaging portion 53B of the intermediate container 405 and the engaged portion 34C of the container main body 403 may be “internal / external fitting” including both internal fitting and external fitting.

(2) In the third embodiment, the example in which the lower end portion of the engaging portion 53B is placed on the outer placement portion 34C of the engaged portion 34C as shown in FIG. However, the present invention is not limited to such an example. The lower end portion of the engaging portion 53B may be placed on another portion of the engaged portion 34C.

(3) In the above embodiment, there is a vertical gap L1 between the top 56 which is the upper end of the middle container 405 and the inner surface 72F of the lid 407 with the lid 407 mounted on the container body 403. The example to do was demonstrated (refer FIG. 40). However, the present invention is not limited to such an example. In a state where the lid body 407 is mounted on the container body 403, the top portion 56, which is the upper end of the middle container 405, and the inner surface 72F of the lid body 407 come into contact with each other (in other words, the gap L1 becomes 0 (zero)). It may be configured.

  Here, when stacking a plurality of packaging containers 400, the lid 407 of the packaging container 400 positioned below may bend downward due to the weight of the packaging container 400 positioned above. As the number of packaging containers 400 to be stacked increases, the weight increases and the amount of bending of the lid 407 also increases. In this state, at the outer edge of the lid body 407, a force acts in a direction in which the outer periphery engaging portion 73 of the lid body 407 is disengaged from the outer periphery engaged portion 37 of the container body 403. As a result, the lid body 407 may come off from the container main body 403, and the contents may spill out from the middle container 405 and the container main body 403. According to the above configuration, the top portion 56 of the middle container 405 and the inner surface 72F of the lid body 407 come into contact with each other, so that the middle container 405 is located above the container body 403 with the lid body 407 mounted on the container body 403. The movement can be suppressed, and as a result, the middle container 405 can be prevented from being detached from the container main body 403.

(4) In the above embodiment, an example in which the long tapered portion 53A of the outer peripheral wall 53 of the middle container 405 is formed to have a smooth outer surface has been described. However, the present invention is not limited to such an example. The long taper portion 53A may be configured to have a plurality of rib portions extending along the lower side. Thereby, the intensity | strength of the outer peripheral wall 53 can be improved. Note that the rib portion may be formed only in a partial region of the outer peripheral wall 53.

(5) In the above embodiment, the example in which the annular partition wall 34 is provided in the central portion of the container main body 403 has been described. However, the present invention is not limited to such an example. The annular partition wall 34 may be provided at a position eccentric from the central portion of the container main body 403. Further, the annular partition wall 34 is not limited to a circular shape as long as it is formed in an annular shape, and may have an elliptical shape or a polygonal shape in a plan view.

(6) In the above embodiment, the example in which the engaging portion 53B of the middle container 405 is formed over the entire circumference of the outer peripheral wall 53 has been described. However, the present invention is not limited to such an example. The engaging portion 53B may be formed in a partial region of the outer peripheral wall 53. For example, two engaging portions 53B may be formed at 180 ° intervals with respect to the annular outer peripheral wall 53, or four engaging portions 53B may be formed at 90 ° intervals.

(7) In the above embodiment, the example in which the inner peripheral wall 52 and the outer peripheral wall 53 of the middle container 405 are formed in a circular shape in plan view has been described. However, the present invention is not limited to such an example. The inner peripheral wall 52 and the outer peripheral wall 53 may be formed in an elliptical shape or a polygonal shape in a plan view.

(8) In the above embodiment, the example in which the bottom 51 is disposed above the engaging portion 53B with respect to the middle container 405 has been described. However, the present invention is not limited to such an example. The bottom 51 may be disposed at the same position as the engaging portion 53B in the vertical direction, or may be disposed below the engaging portion 53B.

(9) In the above embodiment, an example in which the middle container 405 is transparent has been described. However, the present invention is not limited to such an example. The middle container 405 may be opaque. For example, the middle container 405 may be translucent or may have a printed pattern or coloring on the surface.

(10) It should be noted that the configurations disclosed in the above-described embodiments can be applied in combination with the configurations disclosed in other embodiments as long as no contradiction arises. Regarding other configurations, the embodiments disclosed herein are merely examples in all respects. Accordingly, various modifications can be made as appropriate without departing from the spirit of the present disclosure.

[Still another embodiment of packaging container including middle container]
As for a further embodiment of the packaging container 500 including the middle container, as shown in FIG. 43, the main body container 40, the middle container 60 installed in the main body container 40, and the lid that covers the main body container 40 and the middle container 60. 80. The main body container 40 and the lid 80 are formed in an elliptical shape in plan view (viewed from above). The middle container 60 is formed in a rectangular shape (more specifically, a rectangular shape) in plan view. The main body container 40 is a main body that stores a plurality of types of foods that are stored items, and has a storage portion C for storing the plurality of types of foods. In the present embodiment, the main body container 40 is formed so as to have a single accommodating portion C. The middle container 60 is also capable of containing a food item, and has an accommodating part D for accommodating the food item.

  The middle container 60 is formed to be smaller than the main body container 40 and the lid body 80, and divides the inside of the accommodating portion C of the main body container 40 into two spaces. That is, in the packaging container 500 of this embodiment, the middle container 60 functions as an “accommodating container” for accommodating food and a “partition” for partitioning the accommodating portion C of the main body container 40 into two spaces. Combined with the function. Thus, the use of the middle container 60 as a “partition” is one of the characteristic features of the packaging container 500 of the present embodiment. By adopting such a configuration, various kinds (at least three kinds) of food can be accommodated and packaged in a state of being separated from each other without providing a partition wall at a fixed position of the main body container 40.

  The packaging container 500 of the present embodiment is further characterized by the fact that the middle container 60 is configured to be installable at a plurality of positions in the single container C of the main body container 40. That is, the use of the middle container 60 as an “middle container / movable partition” is also one of the characteristic features of the packaging container 500 of this embodiment.

  The main body container 40 has an engaged portion F with which the middle container 60 is engaged on the inner surface facing the accommodating portion C. Here, as shown in FIG. 43, the main body container 40 has a main body bottom surface 41 and a wall surface 42 surrounding the main body bottom surface 41. The accommodating portion C is configured as a space defined by the main body bottom surface 41 and the wall surface 42. Therefore, in this embodiment, the “inner surface facing the housing portion C” is a surface including the upper surface of the main body bottom surface 41 and the inner peripheral surface of the wall surface 42 continuous from the periphery.

  The bottom surface 41 of the main body is formed flat as a whole and is formed in an elliptical shape in plan view. In the following description, a direction parallel to the major axis of the elliptical main body container 40 (main body bottom surface 41) is referred to as “first direction X”, and a direction parallel to the minor axis is referred to as “second direction Y”. The first direction X and the second direction Y are orthogonal to each other (an example of “intersection”). In the present embodiment, the first direction X corresponds to the “slide direction”, and the second direction Y corresponds to the “direction intersecting the slide direction”.

  The wall surface 42 is erected from the main body bottom surface 41 so as to surround the main body bottom surface 41. The wall surface 42 is erected in a posture inclined with respect to the main body bottom surface 41. The wall surface 42 is formed to have a two-step inclination, and an inner inclined wall 42A continuous from the main body bottom surface 41 and an outer side located on the outer side (opposite to the main body bottom surface 41) than the inner inclined wall 42A. And an inclined wall 42B. In the present embodiment, the outer inclined wall 42B is formed so as to be inclined more gently than the inner inclined wall 42A (see FIG. 45). The flange portion 45 continues to the outside of the outer inclined wall 42B in a state of extending outward. The flange portion 45 is fitted with the flange portion 83 of the lid 80 (see FIG. 48).

  In the present embodiment, a guide wall 43 that is steeper than the inner inclined wall 42A is provided on the inner peripheral surface of the boundary surface with the main body bottom surface 41 of the wall surface 42 (here, in particular, the inner inclined wall 42A). The guide wall is formed so as to stand up from the bottom surface 41 of the main body at an angle that is vertical or close thereto (see FIG. 45). A pair of guide walls 43 are provided so as to face each other in the second direction Y in the central region of the first direction X in the loop-shaped boundary portion with the main body bottom surface 41 of the inner inclined wall 42A. Each of the pair of guide walls 43 is provided so that at least a boundary portion with the main body bottom surface 41 is parallel to the first direction X. The separation length in the second direction Y between the pair of guide walls 43 is set to be the same as or approximately the same as the length in the second direction Y of the middle container 60. A first edge portion 64 </ b> A of a support flange 64 provided at the lower end portion of the outer peripheral wall 63 of the middle container 60 is engaged with the guide wall 43. The guide wall 43 and the first edge portion 64A are in contact with each other in the second direction Y. In the present embodiment, the engaged portion F is configured by the guide wall 43 formed on the inner surface of the boundary portion between the wall surface 42 and the main body bottom surface 41.

  Further, the main body container 40 further includes locked portions M to which the middle container 60 is locked at a plurality of locations in the first direction X on the inner surface facing the accommodating portion C. In the present embodiment, a plurality of protrusions 47 extending in the second direction Y are provided on the upper surface of the main body bottom surface 41. The protrusion 47 is provided in an installation area (a central area in the first direction X) of the guide wall 43 on the main body bottom surface 41. A plurality of ridges 47 are provided on one side of the first direction X with respect to the center indicator 49 provided in the center of the first direction X, and the same number of ridges 47 are provided with respect to the center indicator 49. It is provided on the other side in the first direction X. On both sides of the center marking portion 49, a plurality (three in this example) of protrusions 47 are provided at a predetermined pitch. The installation pitch of the protrusions 47 (the interval in the first direction X between adjacent protrusions 47) is set smaller than the width of the middle container 60 in the first direction X. In the present embodiment, the installation pitch of the protrusions 47 is set to about １ ／ of the width of the middle container 60 in the first direction X.

  Further, among the protrusions 47 of each group located on both sides of the center marking portion 49, the interval in the first direction X when the same order when counted from one side in the first direction X is the middle container 60. Is set to be the same as or approximately the same as the width in the first direction X. In the present embodiment, the distance in the first direction X between the side surfaces facing each other of the pair of protrusions 47 in the same order is set to be approximately the same as the width of the middle container 60 in the first direction X. For this reason, a predetermined set of protrusions 47 located on both sides of the center marking portion 49 has a second edge portion 64B of the support flange 64 provided at the lower end portion of the outer peripheral wall 63 of the middle container 60. Locked. The protruding portion 47 and the second edge portion 64B are in contact with each other in the first direction X. In the present embodiment, the locked portion M is configured by the protrusion 47 formed on the upper surface of the main body bottom surface 41.

  The middle container 60 of the present embodiment includes an engaging portion E that engages with the engaged portion F and a locking portion L that engages with the locked portion M. As shown in FIG. 43, the middle container 60 includes a bottom 61, an inner peripheral wall 62 that extends upward from the outer edge of the bottom 61, and an outer peripheral wall 63 that extends downward from the upper end of the inner peripheral wall 62. The bottom portion 61 is formed flat as a whole and is formed in a rectangular shape in a plan view (in this example, a rectangular shape that is longer in the second direction Y than in the first direction X). The bottom portion 61 only needs to be formed flat as a whole, and an annular recess formed so as to be slightly depressed below the center portion is provided on the outer peripheral portion of the bottom portion 61 as shown in the illustrated example. good.

  The inner peripheral wall 62 is erected from the bottom portion 61 so as to surround the bottom portion 61. The inner peripheral wall 62 is formed in a taper shape slightly outward as it goes upward. The inner peripheral wall 62 is formed in a two-step taper shape having a step portion near the central portion in the vertical direction. The outer peripheral wall 63 is suspended from the inner peripheral wall 62 so as to surround the inner peripheral wall 62. The outer peripheral wall 63 is formed in a divergent shape slightly outward as it goes downward. The outer peripheral wall 63 extends downward beyond the position of the bottom 61 in the vertical direction. That is, the vertical height of the outer peripheral wall 63 is set to be higher than the vertical height of the inner peripheral wall 62. The middle container 60 is a raised bottom container in which the position of the bottom 61 is higher than the position of the lower end of the outer peripheral wall 63.

  A support flange 64 that bulges outward is provided at the lower end portion of the outer peripheral wall 63 having two surfaces facing the first direction X and two surfaces facing the second direction Y. The lower end portion of the support flange 64 is further folded outward. The support flange 64 has a pair of first side edge portions 64A facing both sides in the second direction Y and a pair of second side edge portions 64B facing both sides in the first direction X at the folded portion.

  The first edge portion 64A is formed so as to extend in parallel with the first direction X. 64 A of 1st edge parts engage with the guide wall 43 provided in the wall surface 42 of the main body container 40 (refer FIG. 45). In the present embodiment, the engagement portion E is configured by a pair of first edge portions 64 </ b> A of the support flange 64 provided at the lower end portion of the outer peripheral wall 63. The second edge portion 64B is formed so as to extend in parallel with the second direction Y. The second edge portion 64B can be locked to any one of the plurality of protrusions 47 provided on the main body bottom surface 41 of the main body container 40 (see FIGS. 46 to 48). In the present embodiment, the locking portion L is configured by the pair of second edge portions 64B of the support flange 64 provided at the lower end portion of the outer peripheral wall 63.

  In such a packaging container 500, the engaging portion E (first edge portion 64 </ b> A in this example) of the middle container 60 is engaged at a plurality of positions in the single container C in the main body container 40. F (engagement wall 43 in this example) is provided to be engageable. At that time, as shown in FIG. 44, the first edge portion 64A of the middle container 60 provided parallel to the first direction X is engaged with the guide wall 43 of the main body container 40 which is also provided parallel to the first direction X. By being able to slide in the combined state, the engaging portion E of the middle container 60 can be engaged with the engaged portion F of the main body container 40 at a plurality of positions. Thus, the middle container 60 is slid in the first direction X in a state where the guide wall 43 of the main body container 40 and the first edge portion 64A of the middle container 60 are engaged, so that the middle in the first direction X The installation position of the container 60 can be adjusted easily.

  In addition, the first edge portion 64A of the middle container 60 and the guide wall 43 of the main body container 40 are slidable in the first direction X in an engaged state, while the locking portion L (second in this example) of the middle container 60. The edge part 64B) is provided so as to be engaged with the two protrusions 47 located at different positions in the first direction X. In this way, the middle container 60 can be easily positioned in the first direction X by engaging the pair of second edge portions 64B of the middle container 60 with the pair of protrusions 47. As shown in FIGS. 46 to 48, the single container C in the main body container 40 is changed by changing the set of protrusions 47 that actually engage the pair of second edge portions 64 </ b> B of the middle container 60. The middle container 60 can be stably fixed at a plurality of positions.

  Then, using the middle container 60 surrounded by the outer peripheral wall 63 on all four sides as the “middle container / movable partition” as described above, it is possible to easily optimize the overall layout according to the type of food to be stored. it can. For example, in the case where food of the same volume is accommodated on both sides of the middle container 60, the middle container 60 can be installed at the center in the first direction X (see FIG. 48). In addition, for example, when the volume of food stored on both sides of the middle container 60 is different, the middle container 60 can be placed in one of the first directions X (see FIGS. 46 and 47).

  Since the middle container 60 is formed on the raised bottom, it is easy to create a volume feeling of the food stored in the middle container 60, and the appearance (appearance) can be improved. In determining the installation position of the intermediate container 60, a preferable storage position of the food to be stored in the intermediate container 60 to be conspicuous may be considered.

  As shown in FIG. 43, the lid 80 has a top plate 81, a lid wall 82 that surrounds the periphery of the top plate 81, and a flange portion 83 provided on the outer edge of the lid wall 82. The top plate 81 is formed flat as a whole, and is formed in an elliptical shape in plan view. The lid wall 82 is formed so as to extend downward from the outer edge of the top plate 81 while being inclined with respect to the top plate 81. The flange portion 83 is formed to extend outward from the lower end portion of the lid wall 82. The flange portion 45 is fitted with the flange portion 45 of the main body container 40 (see FIG. 48).

  At both end portions of the top plate 81 in the first direction X, bulging portions 81A that bulge upward along the outer edges thereof are formed to bulge. The pair of raised portions 81A are each formed in a U shape in plan view, and are formed so that the U-shaped opening portions face each other. When the plurality of packaging containers 500 are stacked one above the other, the raised portion 81A is engaged with the wall surface 42 (specifically, the inner inclined wall 42A) of the main body container 40 of the packaging container 500 directly above from the outside. It can be stopped (see FIG. 48). And it restrict | limits that the packaging container 500 immediately above moves to both the 1st direction X and the 2nd direction Y.

  In addition, the packaging container 500 (the main body container 40, the middle container 60, and the cover body 80) of this embodiment can be manufactured using the sheet material which uses a thermoplastic resin as a raw material, for example. Examples of thermoplastic resins include polyolefin resins (polyethylene resins, polypropylene resins, etc.), polystyrene resins (impact polystyrene resins, etc.), polyester resins (polyethylene terephthalate resins, and modified polyethylene with heat resistance). At least one of terephthalate resin and the like, and styrene thermoplastic elastomer (styrene-butadiene-styrene block copolymer and the like) can be employed. As the sheet material, a foamed sheet material or a non-foamed sheet material can be used, and a laminated sheet obtained by laminating a film or the like on these can also be used. The packaging container 500 can be formed by thermoforming using the above-described various thermoplastic resin sheets. As specific methods for thermoforming, various methods such as vacuum forming, pressure forming, vacuum / pressure forming, and hot plate forming can be employed.

Further embodiments
(1) In the above embodiment, the example in which the engaged portion F is configured by the guide wall 43 formed on the inner surface of the boundary portion between the wall surface 42 and the main body bottom surface 41 has been described. However, without being limited to such a configuration, for example, a pair of protrusions extending in the first direction X is provided on the upper surface of the main body bottom surface 41, and the engaged portion F is configured by the pair of protrusions. May be.

(2) In the above embodiment, the example in which the locked portion M is configured by the protrusion 47 formed on the upper surface of the main body bottom surface 41 has been described. However, without being limited to such a configuration, for example, a dotted protrusion may be provided instead of the protrusion 47, and the locked portion M may be configured by the protrusion.

(3) In the above embodiment, the configuration in which a total of six protrusions 47 as the locked portions M are provided at a plurality of locations in the first direction X has been described as an example. However, the number of the ridges 47 may be arbitrary without being limited to such a configuration.

(4) In the above embodiment, the configuration in which the engagement between the outer peripheral wall 63 of the middle container 60 and the protrusion 47 of the main body container 40 is merely contact in the first direction X has been described as an example. However, without being limited to such a configuration, for example, as shown in FIG. 49 or 50, the engagement between the outer peripheral wall 63 and the protrusion 47 may be an internal fit. Alternatively, as shown in FIG. 51, for example, the engagement between the outer peripheral wall 63 and the protrusion 47 may be external fitting. Alternatively, for example, as shown in FIG. 52, the engagement between the outer peripheral wall 63 and the protrusion 47 may be an inner / outer fitting (inner fitting and outer fitting). In these configurations, the middle container 60 can be stably fixed to the main body container 40. Therefore, for example, it is possible to suppress the movement of the inner container 60 inside the packaging container 500 in a state where an accommodation item such as food is accommodated.

(5) In the above embodiment, the configuration in which the middle container 60 is formed in the raised bottom mold having the bottom portion 61, the inner peripheral wall 62, and the outer peripheral wall 63 has been described as an example. However, the present invention is not limited to such a configuration. For example, as shown in FIG. 53, an ordinary bowl-shaped container having a bottom 61 and a peripheral wall 67 extending upward from the outer edge of the bottom 61 as an intermediate container 60. May be used. In such a case, for example, a locking groove 68 may be provided at the center of the bottom 61 of the middle container 60 and the locking groove 68 may be locked to the protrusion 47 (an example of the locked portion M). good. In this case, the locking portion L is constituted by the locking groove 68. If the protrusion 47 and the locking groove 68 are formed in an inverted trapezoidal shape as in the illustrated example, it is preferable that the middle container 60 can be stably fixed to the main body container 40. Note that the peripheral edge of the bottom 61 of the middle container 60 may be locked to the protrusion 47 (not shown). In this case, the lock L is constituted by the peripheral edge of the bottom 61.

(6) In the above embodiment, the configuration in which the engagement between the outer peripheral wall 63 of the middle container 60 and the guide wall 43 of the main body container 40 is merely contact in the second direction Y has been described as an example. However, without being limited to such a configuration, for example, as shown in FIG. 54 or FIG. 55, the engagement between the outer peripheral wall 63 and the guide wall 43 may be an internal fitting. For example, the guide wall 43 as the engaged portion F is formed in a reverse taper shape toward the central portion side of the main body container 40 as it goes upward, and the engaging portion E provided at the lower end portion of the outer peripheral wall 63 is provided. It may be formed in a divergent shape toward the outside as it goes downward, and these may be fitted.

(7) In the above-described embodiment, the locking portion L is configured by the second edge portion 64B of the outer peripheral wall 63 of the inner container 60, and the locked portion is formed by the protrusion 47 formed on the upper surface of the main body bottom surface 41. The example in which M is configured has been described. However, the present invention is not limited to such a configuration. For example, as shown in FIGS. 56 and 57, a locking protrusion that bulges from the wall surface 42 (guide wall 43) of the main body container 40 toward the center side of the main body container 40. A portion 48 may be provided, and the locked portion M may be configured by the locking convex portion 48. In this case, the support flange 64 of the outer peripheral wall 63 of the middle container 60 is provided with a locking recess 65 that is received in a state where the locking projection 48 is locked, and the locking recess L constitutes the locking portion L. Good to be done. Thus, the engaged portion F and the locked portion M are provided at the same location (guide wall 43) in the main body container 40, and the engaging portion E and the locking portion L are the same location in the middle container 60 ( The first edge portion 64A) may be provided. In such an example, a normal bowl-shaped middle container 60 as shown in FIG. 53 may be used. In this case, the locking portion L can be provided on the peripheral wall 37 of the middle container 60.

(8) In the above embodiment, the middle container 60 and the main body container 40 are slidable, so that the engaging portion E of the middle container 60 is engaged with the engaged portion F of the main body container 40 at a plurality of positions. The possible configuration has been described as an example. However, without being limited to such a configuration, the engaging portion E of the middle container 60 may be engageable with the engaged portion F of the main body container 40 at a plurality of pinpoint positions. An example of such a configuration is shown in FIG. As shown in this figure, the main body container 40 is provided with a plurality of projecting portions 44 projecting upward from the main body bottom surface 41 in a predetermined arrangement (for example, a lattice shape or a zigzag shape). An engaging portion F is configured. The middle container 60 is formed in a raised bottom mold having a bottom portion 61, an inner peripheral wall 62, and an outer peripheral wall 63, and an engaging portion E is configured by the inner surface of the outer peripheral wall 63. The middle container 60 is selected from the plurality of projecting parts 44 and has an engagement part E (of the outer peripheral wall 63) with respect to the combination of the projecting parts 44 having a predetermined shape (a shape corresponding to the plan view shape of the middle container 60). By fitting the inner surface), it can be moved and fixed stably at a plurality of positions. In such a configuration, depending on the size of the middle container 60, the middle container 60 can be moved in both the first direction X and the second direction Y (see FIG. 58). In addition, the engaging part E may be comprised by the outer surface of the outer peripheral wall 63 of the middle container 60. In this case, the middle container 60 has the engaging part E (with respect to the combination of the plurality of projecting parts 44 having a predetermined shape. When the outer surface of the outer peripheral wall 63 is internally fitted, it can be moved and stably fixed to a plurality of positions. In these cases, the middle container 60 may be such that the engaging portion E simply abuts against the combination of the plurality of projecting portions 44 having a predetermined shape (see FIG. 46).

(9) In the above example, a normal bowl-shaped middle container 60 as shown in FIG. 53 may be used. In this case, the main body container 40 is provided with a plurality of downward concave portions that are recessed downward from the main body bottom surface 41 in a predetermined arrangement (for example, a lattice shape or a zigzag shape), and the engaged portion F is configured by the downward concave portions. Is done. Further, the middle container 60 is provided with one or a plurality of downward protruding portions that protrude downward from the bottom portion 61, and the engaging portion E is configured by the downward protruding portion. The middle container 60 has a plurality of engaging portions E (downward projecting portions) fitted to a combination (or one) of the downward concave portions that are selected from a plurality of downward concave portions and have a predetermined shape. It can be moved and stably fixed at the position. The main body container 40 may be provided with an upward projecting portion (an example of the engaged portion F) and the middle container 60 may be provided with an upward recess (an example of the engaging portion E). The upward recesses are respectively fitted to a combination of a plurality of upward projecting portions (which may be one) having a predetermined shape, so that it can be moved and fixed stably at a plurality of positions.

(10) In the above embodiment, the configuration in which the main body container 40 and the lid body 80 are formed in an elliptical shape in plan view and the middle container 60 is formed in a rectangular shape in plan view has been described as an example. However, without being limited to such a configuration, the main body container 40 and the lid body 80 are formed in other shapes such as a circular shape, a rectangular shape, or a polygonal shape (for example, a hexagonal shape, an octagonal shape, etc.) in plan view. May be. The middle container 60 may also be formed in other shapes such as a circular shape, an elliptical shape, or a polygonal shape in plan view. When the non-rectangular middle container 60 is used (see FIG. 59), if the main body container 40 (or similar container 2) having a plurality of protruding portions 44 is used as the engaged portion F, various shapes can be used. This is suitable because it can be applied to the middle container 60.

(11) In the above embodiment, the configuration in which the packaging container 500 includes only one middle container 60 has been described as an example. However, the number of the middle containers 60 is not limited to such a configuration, and may be arbitrary as long as it is ensured that each of the middle containers 60 is movable within the single container C of the main body container 40.

(12) In the above-described embodiment, the main container 40 has been described mainly assuming a configuration having only one housing part C. However, without being limited to such a configuration, the main body container 40 may have a plurality of accommodating portions C partitioned by fixed partition walls. In this case, it is preferable that at least one of the plurality of storage units C be configured such that the middle container 60 can be installed at a plurality of positions in the storage unit C.

(13) In the embodiment described above, the upper end portion of the middle container 60 and the inner surface of the lid body 80 may be in contact with each other with the lid body 80 attached to the main body container 40. In this way, even if the outer peripheral wall 63 of the middle container 60 and the protrusion 47 of the main body container 40 are simply in contact with each other, the middle container is inside the packaging container 500 during the transportation of the packaging container 500. It can suppress that 60 moves. In addition, the lid 80 can be supported from below by the middle container 60 and the lid 80 can be prevented from bending downward when the plurality of packaging containers 500 are stacked one above the other.

(14) In the above embodiment, an inner lid that covers the inner container 60 may be provided separately from the lid 80.

(15) In the above-described embodiment, the packaging container 500 that contains food is described as an example. However, without being limited to such a configuration, the packaging container 500 can be used for the purpose of accommodating all items other than food.

(16) The configurations disclosed in each of the above-described embodiments (including the above-described embodiments and other embodiments; the same applies hereinafter) are applied in combination with the configurations disclosed in the other embodiments unless a contradiction arises. It is also possible to do. Regarding other configurations as well, the embodiments disclosed in the present specification are examples in all respects, and can be appropriately modified without departing from the gist of the present disclosure.

1, 80, 200, 302, 407 Lid 1d Engagement part 2, 40, 100, 301, 403 Container body 2d Engagement part 2e Partition wall 109, 205 Knob 105 Linear partition wall 106 Annular partition wall 60, 405 Middle container

Claims (1)

A packaging container for sheet molding comprising a container body and a lid,
The container body is
The bottom,
A wall that rises from the bottom,
It has a flange for fitting the lid facing outward against this wall surface,
A container-side reverse taper surface having an inclination of 30 to 90 degrees with respect to the vertical is provided through a rounded portion formed on the entire circumference from the lid fitting flange portion, and is further turned outward from the reverse taper surface. While providing the part
A partition wall for partitioning a plurality of storage portions for storing the storage items;
The partition wall is
Rises from the bottom of the container and abuts against the wall;
And a linear partition wall formed from the outer edge toward the center,
It further has an annular partition wall that is formed in an annular shape and is provided on the center side of the container body,
A receiving piece protruding outward is formed on a part of the outer periphery of the container body,
The lid is
With the top plate,
A lid wall continuous downward from the periphery of the top plate;
A lid flange that expands outward from the lower edge of the lid wall;
A part of the outer periphery of the lid is formed with a knob that protrudes outward corresponding to the receiving piece,
A lid reverse tapered surface is intermittently provided from the lid flange portion via the lid rounded portion, and a folded surface is extended outward from the reverse tapered surface. Corresponding to the depth of the reverse tapered surface of the container body,
Furthermore, the cut end of the folded surface of the lid body does not exceed the outer periphery of the folded portion of the container body, and the tip position of the cut end is a position where the lid round portion starts from the lid flange portion Located outside,
A packaging container characterized by that.

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