JP6853656B2 - Packaging container and lid and container body of packaging container - Google Patents

Description

The present invention relates to a packaging container that can be closed with a lid while an inner plate containing different types of food is placed on the container body, and the lid and container body of the packaging container.

Conventionally, for example, packaging containers using medium plates have been widely used for packaging foods sold at retail stores such as supermarkets and convenience stores. In general, the inner plate was used to separate and package foods (liquid foods, foods in which juice and oil easily flow out, etc.) different from the foods in the container body. In such a packaging container, a form in which the inner plate is suspended from the container body or the lid has been adopted. For example, it is a two-stage packaging container in which the flange portion of the inner plate is caught by the flange portion of the container body and the food storage portion of the inner plate is arranged directly above the food storage portion of the container body.

In the above-mentioned two-stage packaging container, since the inner plate overlaps the upper layer of the container body, the total area of the packaging container can be reduced, so that the effect of saving the display space at the time of over-the-counter sales is expected. However, for example, food liquid leakage (juice leakage) due to surface tension from the contact portion (flange portion, etc.) between the inner plate and the container body and the lid, the middle plate falling due to overweight of the food, and the inner plate with respect to the container body. Overfitting (a state in which the inner plate is difficult to remove from the container body) has been regarded as a problem.

Therefore, the flange portion of the inner plate is placed on the flat surface of the step portion provided in the container body, and the pressing portion corresponding to the lowermost end of the flange portion of the lid body is the flange of the inner plate when the lid is closed. An idea of pressing from the top of the part (see, for example, Patent Document 1) has been proposed. Based on this idea, the flange of the lid is internally fitted inside the container body via the inner plate, which prevents food leakage and the inner plate from falling, and makes it easier to attach and detach the inner plate from the container body. The effect of improvement is claimed.

Japanese Unexamined Patent Publication No. 2014-213921

Conventional two-stage packaging containers are suitable for commercial distribution (for example, distribution by a central kitchen) in which the place where food is manufactured and packaged and the place where food is sold are different. In other words, not only is the workability of packaging good because the inner plate can be easily attached to the container body, but also the inner plate is less likely to shift or fall inside the container body, so it is highly safe during distribution, and the product Quality maintenance was expected.

On the other hand, in recent retail stores, taking advantage of improvements in food freezing technology and heating technology, frozen foods are cooked in the backyard of the store with a heating device, and the products are provided to consumers in a warm state or displayed in stores. Tend to do. With such a sales format, it is possible to appropriately determine whether to increase or decrease the production of products according to sales and the status of orders from consumers, so retailers can not only reduce the burden of purchasing and inventory management from the central kitchen, but also. It has the advantage of being able to provide consumers with accurate services in response to their demands.

The above-mentioned changes in the sales format of retail stores are due to changes in consumers who purchase lunch boxes and delicatessen items. In detail, while the tendency of home-cooked meals (meals by purchasing ready-made products), which started with the desire to save money on eating out, continued, the burden and resistance to freshly prepared foods and self-cooking increased. Along with the quality of eating out, there is a growing demand for home-cooked meals from inorganic bland meals to organic warm meals.

The inventors think that food packaging should follow the changes in the commercial distribution at retail stores against the background of such changes in consumer demand, and as a method of packaging the middle plate, two-stage packaging From the perspective that it is not necessary to limit it to containers for use. In other words, unlike the commercial distribution from central kitchens, the risk of the middle plate falling is low, and it is not necessary to secure sufficient display space at the store due to inventory management, so the idea of adopting a one-stage packaging container It came to.

The one-stage packaging container has an advantage different from the two-stage packaging container. For example, it is easy to improve purchasing motivation because all the foods arranged in the container body can be shown to consumers. In addition, since the inner plate can be placed on the container body and easily attached and detached, it is possible to increase the types and combinations of foods, not limited to bowls. Such advantages are suitable for cooking in the backyard in the store and order sales in the store.

However, the inner plate stored in the conventional one-stage packaging container is fixed by a partition provided in the container body to prevent misalignment, so that an extra space may be created in the container body or the inside may be inside. In order to prevent the contents from leaking by attaching the lid to the dish, the cost for extra materials was incurred. Further, since the load applied to the container body and the lid, which are applied to the one-stage packaging container, is partially different depending on the type of the contents, damage / deformation and misalignment of the contents occur.

In order to solve the problem of such a one-stage packaging container, the inventors made use of the shape of the container body and the lid without using a partition or a lid dedicated to the inner plate after ingenuity. Structure to prevent misalignment of dishes, shape of container body and lid to prevent damage / deformation and misalignment of contents when serving foods with different weights, willingness to purchase while responding to consumer demand Found in the shape of the container body and lid that stir up.

Therefore, the first object of the present invention is the packaging container and the packaging container in which the position of the inner plate placed on the container body that can be closed by the lid is fixed by the container body and the lid. The purpose is to provide a lid and a container body. A second object of the present invention is to provide a lid of a packaging container that enhances rigidity and makes it easy to see the contents inside the container body. A third object of the present invention is to provide a container body of a packaging container that increases rigidity and prevents misalignment of placed contents.

That is, the packaging container according to the present invention includes a container body for accommodating the contents, a middle plate taller than the container body, and a lid for closing the container body with the middle plate placed. A packaging container provided with a lid, which has a middle plate fixing mechanism for fixing the position of the middle plate in a closed state, and the middle plate fixing mechanism is such that the middle plate is the bottom of the main body of the container body and the main body. It is characterized in that it abuts and is fixed to the side wall portion and the lid top surface portion of the lid.

Further, in the middle plate fixing mechanism, the convex shape of the bottom of the main body of the container body and the convex shape of the bottom of the middle plate of the middle plate match, and the stepped shape of the side wall of the main body of the container body and the inside of the middle plate. It is desirable to have a mechanism in which the tip shape of the plate flange portion matches and the rib shape of the lid top surface portion of the lid body matches the upper end shape of the middle plate side wall portion of the middle plate.

Further, the convex shape of the bottom of the main body is the convex shape of the bottom of the main body protruding upward from the bottom of the main body, and the stepped shape of the side wall of the main body is formed so as to protrude outward from the circumferential direction of the side wall of the main body. It is a stepped portion of the side wall of the main body having a substantially horizontal flat portion, and the rib shape of the top surface of the lid projects upward along a part of the peripheral edge of the top surface of the lid. The rib portion, the convex shape of the bottom of the middle plate is the convex portion of the bottom of the middle plate having substantially the same shape that covers the convex portion of the bottom of the main body, and the tip shape of the flange portion of the middle plate is the flatness of the stepped portion of the side wall of the main body. It is desirable that the flat inner plate flange tip portion is placed on the portion and the upper end shape of the inner plate side wall portion is the upper end portion of the inner plate side wall portion housed in the lid top surface rib portion. ..

Further, the lid of the packaging container according to the present invention is a lid of the packaging container that closes the opening of the container body, and is a pair of mountain-shaped lids protruding upward from the top surface of a substantially rectangular lid in a plan view. The lid top surface rib portion is provided at least, and each of the lid body top surface rib portions extends from all the short edges of the lid top surface portion to a part of both longitudinal edges, and a portion along the longitudinal edge is provided. It is characterized in that it is provided so as to have the same length.

Further, a steeply inclined portion in which the rib portion on the top surface of the lid is inclined outward with respect to the top surface portion of the lid, and a gently inclined portion inwardly inclined more gently than the steeply inclined portion. It is desirable to have.

Further, the container main body of the packaging container according to the present invention is the container main body of the packaging container for accommodating the contents, and includes at least a convex portion on the bottom of the main body protruding upward from the bottom of the main body which is substantially rectangular in a plan view. The bottom convex portion of the main body has an arch-shaped first convex portion and a second convex portion parallel to the short edge and adjacent to each other, and the second convex portion is the first convex portion. It is characterized in that it is higher and is located on the center side of the bottom of the main body.

Further, the main body further includes a main body side wall step portion having a substantially horizontal flat portion formed so as to project outward from the circumferential direction of the main body side wall portion provided so as to expand upward from the peripheral edge of the main body bottom portion. It is desirable that the side wall step portion is provided in the circumferential direction of a part of the side wall portion of the main body in the lateral direction and a part in the longitudinal direction.

The "contents" may be bento or side dish foods sold at supermarkets or convenience stores, or medium plates containing the above foods, and the foods may be, for example, curry rice, beef stew, omelet rice, and the limitation is limited. Absent.

The "middle plate fixing mechanism" means the mechanism of the container body, the lid, and the middle plate that realizes that the middle plate placed in the container body is fixed in a closed state so as not to be displaced. The inner plate may be easily attached and detached with the lid open.

The packaging container according to the present invention has a middle plate fixing mechanism for fixing the position of the inner plate in the closed state, and the inner plate hits the bottom of the main body of the container, the side wall of the main body, and the top surface of the lid of the lid. By being in contact and fixed, the inner plate is fixed in contact with the container body and the lid at three points when the lid is closed, so that the position of the inner plate does not shift inside the container body and is placed on the container body. It is possible to prevent the contents from getting out of shape or being biased.

Further, the lid of the packaging container according to the present invention includes at least a pair of chevron-shaped lid top ribs projecting upward from a substantially rectangular lid top rib in a plan view, and the lid top ribs. Each of the portions extends from all the short edges of the top surface of the lid to a part of both longitudinal edges, and the portions along the longitudinal edges are provided so as to have the same length. It is expected that the rigidity of the body will be improved and the inside of the container body can be easily seen. That is, if the rib portion on the top surface of the lid is mountain-shaped (gentle curved surface shape), the reflection of light is dispersed, so that the inside of the container body (including the inner plate) can be easily seen even through the rib portion on the top surface of the lid. it can. Further, the rib portion on the top surface of the lid extends to the end portion of the longitudinal edge of the top surface portion of the lid, does not reach the central portion, and a flat portion without the rib portion on the top surface of the lid is formed on the peripheral edge of the top surface portion of the lid. Therefore, not only the inside of the container body can be easily seen, but also the flat portion can be used as a space for attaching a predetermined label on the contents. Further, since the range in which the rib portion on the top surface of the lid is provided is limited to a part of the longitudinal edge from all the short edges of the top surface of the lid, the upper end portion of the inner plate placed on the container body. The shape easily matches the shape of the rib portion on the top surface of the lid, and the inner plate can be fixed to the container body with the lid closed.

Further, the container main body of the packaging container according to the present invention is the container main body of the packaging container for accommodating the contents, and includes at least a convex portion on the bottom of the main body protruding upward from the bottom of the main body which is substantially rectangular in a plan view. The bottom convex portion of the main body has an arch-shaped first convex portion and a second convex portion parallel to the short edge and adjacent to each other, and the second convex portion is the first convex portion. By being higher and located on the center side of the bottom of the main body, the rigidity of the container main body can be expected to be improved, and the contents placed on the bottom of the main body can be prevented from being displaced in the longitudinal edge direction. .. That is, the first convex portion and the second convex portion serve as anti-slip parts for the contents, and in particular, the second convex portion located on the center side of the bottom portion of the main body is higher than the first convex portion. Therefore, it is possible to prevent the contents from being further displaced toward the center of the bottom of the main body beyond the second convex portion. Further, since the first convex portion and the second convex portion are adjacent to each other, the shape of the bottom portion of the inner plate placed on the container body is the shape of the first convex portion and the second convex portion. It is easy to match the shape of the container, and the inner plate can be fixed to the container body.

It is a perspective view which shows an example of a packaging container. It is a front view which shows an example of the container main body of a packaging container. It is a top view which shows an example of the container main body of a packaging container. It is a bottom view which shows an example of the container main body of a packaging container. It is a right side view which shows an example of the container main body of a packaging container. It is an end view which shows an example of the container main body of a packaging container. It is another end view which shows an example of the container body of a packaging container. It is a front view which shows an example of the lid body of a packaging container. It is a top view which shows an example of the lid body of a packaging container. It is a bottom view which shows an example of the lid body of a packaging container. It is a right side view which shows an example of the lid body of a packaging container. It is a front view which shows an example of the inner plate of a packaging container. It is a rear view which shows an example of the inner plate of a packaging container. It is a top view which shows an example of the inner plate of a packaging container. It is a right side view which shows an example of the inner plate of a packaging container. It is a left side view which shows an example of the inner plate of a packaging container. It is an end view which shows an example of the inner plate of a packaging container.

Hereinafter, with reference to FIG. 1, the outline of the packaging container according to the present invention, the container body, the lid, and the inner plate constituting the packaging container will be described. FIG. 1 is a perspective view showing a state in which a lid is attached to a container body on which an inner plate is placed.

As shown in FIG. 1, the packaging container according to the present embodiment includes a container body 1 for accommodating the contents, a middle plate 3 taller than the container body, and the container in a state where the middle plate is placed. It is a packaging container provided with a lid 2 for closing the main body, and has a middle plate fixing mechanism for fixing the position of the middle plate in the closed state. , The bottom portion 11 of the main body of the container body, the side wall portion 13 of the main body, and the top surface portion 21 of the lid of the lid may be abutted and fixed.

Further, the inner plate fixing mechanism matches the convex shape of the main body bottom portion 11 of the container body 1 with the convex shape of the inner plate bottom portion 31 of the inner plate 3, and the stepped shape of the main body side wall portion 13 of the container main body and the inner plate. Even if it has a mechanism in which the tip shape of the inner plate flange portion 33 matches and the rib shape of the lid top surface portion 21 of the lid 2 matches the upper end shape of the inner plate side wall portion 32 of the inner plate. Good.

Further, the convex shape of the main body bottom portion 11 is the main body bottom convex portion 11a protruding upward from the main body bottom portion, and the stepped shape of the main body side wall portion 13 is formed so as to project outward from the circumferential direction of the main body side wall portion. It is a main body side wall step portion 13a having a substantially horizontal flat portion, and the rib shape of the lid top surface portion 21 projects upward along a part of the peripheral edge of the lid top surface portion. The top rib portion 22 has a convex shape of the bottom plate portion 31 of the middle plate, which is a convex portion of the bottom portion of the middle plate having substantially the same shape that covers the convex portion of the bottom of the main body, and the tip shape of the flange portion 33 of the middle plate is the side wall of the main body. The flat middle plate flange tip portion 33a placed on the flat portion of the step portion, and the upper end shape of the middle plate side wall portion is the middle plate side wall upper end portion 32a housed in the lid top surface rib portion. There may be.

Further, the lid 3 of the packaging container according to the present embodiment is the lid 3 of the packaging container that closes the opening of the container body 1, and projects upward from the substantially rectangular lid top surface 21 in a plan view. A pair of chevron top ribs 22 are provided, and each of the lid ribs extends from all the short edges of the lid top to part of both longitudinal edges. The portions along the longitudinal edge may be provided so as to have the same length.

Further, the lid top surface rib portion 22 is inclined outward with respect to the lid top surface portion 21 with a steep slope 22a, and is inclined inward with a gentle slope from the lid top surface rib steep slope portion. It may have a gently sloping portion 22b.

Further, the container body 1 of the packaging container according to the present embodiment is the container body 1 of the packaging container for accommodating the contents, and the convex portion of the bottom of the main body protrudes upward from the bottom 11 of the main body which is substantially rectangular in a plan view. 11a, 11b are provided, and the bottom convex portion of the main body has an arch-shaped first convex portion 11a and a second convex portion 11b parallel to the short edge and adjacent to each other, and the second convex portion is provided. The portion may be located higher than the first convex portion and on the central side of the bottom portion of the main body.

Further, a main body side wall step portion 13a having a substantially horizontal flat portion formed so as to project outward from the circumferential direction of the main body side wall portion 13 provided so as to expand upward from the peripheral edge of the main body bottom portion 11 is further provided. The step portion on the side wall of the main body may be provided in the circumferential direction of a part of the side wall of the main body in the lateral direction and a part in the longitudinal direction.

Next, with reference to FIGS. 1 to 17, the structure of the packaging container according to the embodiment of the present invention and the container body, lid, and inner plate constituting the packaging container will be described in detail. FIG. 6 is an enlarged end view of the BB portion in the AA ′ portion of FIG. FIG. 7 is an enlarged end view of the DD portion in the CC portion of FIG. FIG. 17 is an enlarged end view of the FF portion in the EE portion of FIG.

As shown in FIG. 1, the packaging container in the present embodiment includes a container body 1 in which food and an inner plate are stored, a lid 2 that closes an opening portion of the container body by internal fitting, the container body, and the container body. An inner plate 3 whose mounting position is fixed by the lid may be provided. Assuming that the normal state in which the food consumer faces the main packaging container is a plan view, the shape of the main packaging container is a substantially rectangular shape that gently bulges outward in a plan view, and the ratio of the long side to the short side. May be a silver-white ratio (1: √2).

As shown in FIGS. 2 to 7, the container main body 1 expands upward via a main body bottom portion 11 on which food and an inner plate are placed and a main body boundary portion 12 gently curved from the peripheral edge of the main body bottom portion. The main body side wall portion 13 provided may be provided, and the main body flange portion 14 extending outward from the upper end of the main body side wall portion may be provided. The shape of the container body 1 may be substantially rectangular in a plan view, and the ratio of the long side to the short side may be the silver ratio (1: √2).

The main body bottom portion 11 may have a main body bottom main body bottom first convex portion 11a and a main body bottom second convex portion 11b protruding upward (inward direction of the container main body 1) from the flat portion. The shape of the bottom portion 11 of the main body may be a substantially rectangular shape in which the peripheral edge (longitudinal edge) in the longitudinal direction and the peripheral edge (short edge) in the lateral direction gently bulge outward in a plan view. The degree of swelling of the long edge (short edge) may be 0.01 to 0.1 times the length of the straight line connecting both ends of the long edge (short edge). The bottom of the main body 11 may be provided with an upper bottom of the bottom of the main body (not numbered) that is raised slightly from the inside of the peripheral edge, and the first convex portion 11a of the bottom of the main body and the second convex of the bottom of the main body are provided from the upper bottom of the bottom of the main body. The portion 11b may be projected.

The first convex portion 11a at the bottom of the main body and the second convex portion 11b at the bottom of the main body may have an arch shape parallel to the short edge and adjacent to each other. The second convex portion 11b on the bottom of the main body may be closer to the center of the bottom 11 of the main body than the first convex portion 11a on the bottom of the main body. The highest peak of the second convex portion 11b on the bottom of the main body may be higher than the highest peak of the first convex portion 11a on the bottom of the main body. The first convex portion 11a at the bottom of the main body has a gently sloping inclined surface (not numbered) inclined inward of the bottom of the main body 11 and a steeply sloping surface (not numbered) slightly bulging outward. Do not) and may have. The second convex portion 11b at the bottom of the main body may have an inclined surface (not numbered) that is inclined in the inner direction and the outer direction of the bottom portion 11 of the main body with the same degree of gradient. The gently sloping inclined surface inclined inward of the first convex portion 11a of the bottom of the main body may be gentler than the inclined surface inclined in the outward direction of the second convex portion 11b of the bottom of the main body. The main body bottom first convex portion 11a and the main body bottom second convex portion 11b may be arranged symmetrically with only one or both of the main body bottom 11 divided into two equal parts parallel to the short edge.

The main body boundary portion 12 is located between the main body bottom portion 11 and the main body side wall portion 13, and may be integrally provided with the peripheral edge of the main body bottom portion and the peripheral edge of the lower end of the main body side wall portion. The radius of curvature of the main body boundary portion 12 may be 10 to 18 mm, preferably 12 to 16 mm, more preferably 13 to 15 mm, and may be curved to the extent that the tips of general spoons match.

The main body side wall portion 13 may be provided so as to expand upward from the peripheral edge of the upper end of the main body boundary portion 12. The shape of the side wall portion 13 of the main body may be a rounded curved surface that bulges to the same extent as the longitudinal edge and the minor edge of the main body bottom portion 11 in a plan view. A main body having a substantially horizontal flat portion formed in a predetermined portion in the height direction of the main body side wall portion 13 (for example, near the middle or above the middle) so as to project outward from the circumferential direction of the main body side wall portion. The side wall step portion 13a may be provided. Of the main body side wall portion 13, the upper side of the main body side wall step portion 13a as a boundary may protrude outward from the lower side according to the width of the main body side wall step portion 13a, and the upper end of the main body side wall portion and the main body side wall portion An in-body fitting portion (not numbered) into which the lid 2 is internally fitted may be provided between the step portion and the step portion.

A pair of facing main body side wall step partition portions 13b may be provided at the central portion on the long side side of the main body side wall step portion 13a. The main body side wall step portion 13a may be provided on both sides of the main body side wall portion 13 with the main body side wall step partition portion 13b as a boundary, and may or may not be provided at the corner portion of the main body side wall portion.

The main body flange portion 14 has a main body flange flat portion 14a extending substantially horizontally from the peripheral edge of the upper end of the main body side wall portion 13 and a main body extending downward from the peripheral edge of the main body flange flat portion. It may have a flange inclined portion 14b. The radius of curvature of the peripheral edge of the main body flange inclined portion 14b corresponding to the corner portion of the main body flange portion 14 may be 15 to 25 mm, preferably 17 to 23 mm, and more preferably 19 to 21 mm. The angle of the main body flange inclined portion 14b with respect to the main body flange flat portion 14a may be 20 to 30 °, preferably 23 to 29 °, and more preferably 26 to 28 °.

As shown in FIGS. 8 to 11, the lid 2 includes a flat lid top surface portion 21, a pair of chevron top surface rib portions 22 provided on the periphery of the lid top surface portion, and the lid body top surface rib portion 22. A lid side wall portion 23 provided so as to extend downward from the peripheral edge of the lid top surface portion or the lid top surface rib portion, and a lid flange portion 24 extending upward from the lower end of the lid side wall portion. And may be provided. The lid 2 may be molded of a transparent material. The shape of the lid 2 may be substantially rectangular in a plan view, and the ratio of the long side to the short side may be the silver ratio (1: √2).

The shape of the top surface portion 21 of the lid may be a substantially rectangular shape in which the longitudinal edge and the lateral edge gently bulge outward in a plan view. The degree of swelling of the long edge (short edge) may be 0.01 to 0.1 times the length of the straight line connecting both ends of the long edge (short edge).

The lid top surface rib portion 22 corresponds to the boundary portion between the lid top surface portion 21 and the lid side wall portion 23, and the central portion of the longitudinal edge of the lid top surface portion (32.5 on both sides from the center of the longitudinal edge). It may be provided on the entire short edge from the portion other than the portion (up to 37.5 mm). The end face shape of the cross section crossing the lid top surface rib portion 22 is a lid steep slope portion 22a that is steeply inclined outward with respect to the lid top surface portion 21, and this steep inclination portion 22a inward. It may have a mountain shape having a lid gently inclined portion 22b on the top surface of the lid which is inclined gently from the portion. Of the lid top surface rib portions 22, the lid top surface rib end portion 22c on the longitudinal edge of the lid top surface portion 21 is gently curved and continuously provided on the lid top surface portion while expanding in a V shape. You may be doing it.

The lid side wall portion 23 may be provided so as to extend downward from the peripheral edge of the lid top surface rib portion 22 or the peripheral edge of the lid top surface portion 21 in which the lid top surface rib portion is not provided. The shape of the side wall portion 23 of the lid may be a rounded curved surface that bulges to the same extent as the longitudinal edge and the minor edge of the top surface portion 21 of the lid in a plan view.

The lid flange portion 24 includes a lid flange inner fitting portion 24a erected upward after extending outward substantially horizontally from the peripheral edge of the lower end of the lid side wall portion 23, and the lid inner fitting portion 24a. It may have a lid flange tip portion 24b extending substantially horizontally from the peripheral edge of the lid. A pair of degassing holes may be provided in the central portion on the long side side of the lid flange tip portion 24b.

As shown in FIGS. 12 to 17, the middle plate 3 includes a middle plate bottom portion 31 for accommodating food, a middle plate side wall portion 32 provided so as to expand upward from the peripheral edge of the middle plate bottom portion, and the middle plate. A flat inner plate flange portion 33 provided so as to expand downward from the upper end of the side wall portion via a substantially horizontal flat inner plate side wall upper end portion 33a may be provided. The shape of the middle plate 3 may form a substantially pentagon in a plan view, and may be the same as the plan view shape of the bottom 1 of the main body or the half side of the lid 2.

The middle plate bottom portion 31 may have a middle plate bottom convex portion 31a having substantially the same shape as the main body bottom first convex portion 11a protruding upward (inward direction of the middle plate 3). The shape of the bottom portion 31 of the inner plate may be substantially pentagonal in a plan view. The shape of the boundary portion between the middle plate bottom portion 31 and the inner plate side wall portion 32 on the center side of the container body 1 is such that the inner plate 3 is placed on the container body and is outside the second convex portion 11b at the bottom of the main body. It may coincide with the inclined surface.

The middle plate side wall portion 32 may have a middle plate side wall upper end portion 32a extending substantially horizontally from the upper end and having a stepped shape with partially different heights. The shape of the side wall portion 32 of the middle plate is the same as that of the bottom portion 31 of the middle plate at the lower end, and may change from a substantially pentagonal shape to a substantially trapezoidal shape as it approaches the upper end. The upper end portion 32a of the side wall of the middle plate may be located higher than the flange portion 14 of the main body in a state where the middle plate 3 is placed on the container main body 1.

The middle plate flange portion 33 is provided so as to expand downward from the outer peripheral edge of the upper end portion 32a of the inner plate side wall, and even if it has the middle plate flange tip portion 33a extending substantially horizontally from the lowermost end. Good. The middle plate flange tip portion 33a may be at the same height as the main body side wall step portion 13a in a state where the middle plate 3 is placed on the container main body 1. The side surface of the countersunk flange portion 33 may be provided with ribs (not numbered) in the vertical or horizontal direction to increase the rigidity. A part of the tip portion 33a of the middle plate flange may be provided with a knob having a predetermined length for tilting or lifting the middle plate 3.

Next, with reference to FIG. 1, the structure of the packaging container (medium plate fixing mechanism) according to the embodiment of the present invention will be described in detail.

When the middle plate 3 is placed on the main body bottom portion 11 of the container main body 1, the middle plate bottom convex portion 31a of the middle plate bottom portion 31 covers the main body bottom first convex portion 11a of the main body bottom portion, and the middle plate bottom portion 31 Of the boundary portion between the inner plate side wall portion 32 and the inner plate side wall portion 32, the central side of the container main body 1 may be fitted between the main body bottom first convex portion 11a and the main body bottom second convex portion 11b.
As a result, the shape of the bottom plate 31 of the middle plate matches the shape of the first convex portion 11a of the bottom of the main body and the second convex portion 11b of the bottom of the main body, so that the middle plate 3 is displaced from the predetermined position with respect to the bottom portion 11 of the main body. I'm preventing it.

Further, the tip portion 32a of the inner plate flange may be placed on the stepped portion 13a on the side wall of the main body, and the corner portion of the tip of the flange of the inner plate on the central side of the container body 1 may abut on the stepped partition portion 13b on the side wall of the main body. ..
As a result, the shape of the middle plate flange tip portion 32a matches the shape of the main body side wall step portion 13a including the main body side wall step partition portion 13b, so that the middle plate 3 deviates from a predetermined position with respect to the main body side wall portion 13. Is being prevented.

Further, when the lid 2 is attached to the container body 1, the lid top surface rib portion 22 may cover the upper end 32a of the side wall of the inner plate. That is, the lid top surface rib end portion 22c may come into contact with the stepped shape of the middle plate side wall upper end portion 32.
As a result, the shape of the upper end portion 32a of the side wall of the inner plate matches the shape of the rib 22 on the top surface of the lid, so that the inner plate 3 is prevented from being displaced from a predetermined position with respect to the top surface portion 21 of the lid.

Therefore, the packaging container according to the present embodiment has an inner plate fixing mechanism for fixing the position of the inner plate 3 in the closed state, and the inner plate is the main body bottom portion 11 and the main body side wall portion 13 of the container main body 1, and the lid. By abutting and fixing the lid top surface portion 21 of the body 2, when the lid is closed, the three places of the inner plate are abutted and fixed to the container body and the lid, so that the position of the inner plate is the container. It does not shift inside the main body, and it is possible to prevent the contents from getting out of shape or being biased.

Further, as the above-mentioned middle plate fixing mechanism, the convex shape of the main body bottom 11 of the container body 1 (for example, the first convex portion 11a of the main body bottom) and the convex shape of the middle plate bottom 31 of the middle plate 3 (for example, the convex shape of the bottom of the middle plate). The portion 31a) coincides with the step shape of the main body side wall portion 13 of the container body (for example, the main body side wall step portion 13a) and the tip shape of the middle plate flange portion 33 of the middle plate (for example, the middle plate flange tip portion 33a). ) Matches, and the rib shape of the lid top surface portion 21 of the lid (for example, the lid top surface rib portion 22) and the upper end shape of the middle plate side wall portion 32 of the inner plate (for example, the upper end portion of the inner plate side wall). By having a mechanism that matches 32a), the lower part, the middle part, and the upper part of the inner plate are fixed in a well-balanced manner with the lower part and the middle part of the container body and the upper part of the lid, respectively, and thus are used normally. Even if the entire packaging container is tilted, shaken in the lateral direction, or dropped, the fixed state of the inner plate can be maintained.

Further, the convex shape of the main body bottom portion 11 is the main body bottom first convex portion 11a protruding upward from the main body bottom portion, and the stepped shape of the main body side wall portion 13 protrudes outward from the circumferential direction of the main body side wall portion. It is a main body side wall step portion 13a having a substantially horizontal flat portion formed by the lid, and the rib shape of the lid top surface portion 21 projects upward along a part of the peripheral edge of the body top surface portion. The rib portion 22 on the top surface of the body, the convex shape of the bottom portion 31 of the middle plate is the convex portion 31a of the bottom of the middle plate having substantially the same shape that covers the first convex portion of the bottom of the main body, and the tip shape of the flange portion 33 of the middle plate is A flat inner plate flange tip portion 33a placed on the flat portion of the side wall step portion of the main body, and the upper end shape of the inner plate side wall portion 32 is housed in the lid top surface rib portion. The upper end portion 32a ensures the prevention of misalignment of the inner plate with respect to the container body, the rigidity of the container body and the lid, the visibility inside the container body through the lid, and the design of the entire packaging container. Not only that, but it is possible to find the feasibility of a new commercial distribution in retail stores that enhances consumers' purchasing motivation.

Further, the lid 2 of the packaging container according to the present invention includes at least a pair of chevron top ribs 22 projecting upward from the substantially rectangular lid top 21 in a plan view, and the lid 2 is provided. Each of the top ribs shall be provided so as to extend from all the short edges of the top of the lid to a part of both longitudinal edges and to have the same length along the longitudinal edges. As a result, the rigidity of the lid can be expected to be improved, and the inside of the container body 1 can be easily seen. That is, if the lid top surface rib portion 22 has a mountain shape (gentle curved surface shape), light reflection is suppressed, so that the inside of the container body (including the middle plate 3) can be easily passed through the lid top surface rib portion. You can see it. Further, the lid top surface rib portion 22 extends to the end portion on the longitudinal edge of the lid body top surface portion 21, does not reach the central portion, and does not have the lid top surface rib portion on the peripheral edge of the lid top surface portion. Since it has a flat portion, not only the inside of the container body 1 can be easily seen, but also this flat portion can be used as a space for attaching a predetermined label on the contents. Further, since the range in which the lid top surface rib portion 22 is provided is limited to the entire short edge of the lid top surface portion 22 to a part of the longitudinal edge, the middle plate 3 placed on the container body 1 is placed. The shape of the upper end portion (upper end portion 32a of the side wall of the inner plate) easily matches the shape of the rib portion on the top surface of the lid, and the inner plate can be fixed to the container body 1 with the lid 2 closed.

Further, the lid top surface rib portion 22 is steeply inclined outward with respect to the lid top surface portion 21, and the lid top surface rib steeply inclined portion 22a and the lid top surface rib steeply inclined portion inside. By having the lid gently inclined portion 22b on the top surface of the lid, which is more gently inclined, not only is it easy to see the inside of the container body 1 through the gently inclined portion of the rib on the top surface of the lid even in a plan view. When the inner plate 3 is placed on the container body 1, the steeply inclined portion of the lid top surface rib serves as a stopper for the upper end portion 32a of the side wall of the inner plate, so that the inner plate 3 is prevented from laterally displaced in the opened state. be able to.

Further, the container main body 1 of the packaging container according to the present embodiment includes at least a main body bottom convex portion protruding upward from the substantially rectangular main body bottom 11 in a plan view, and the main body bottom convex portion is parallel to the short edge. It also has an arched main body bottom first convex portion 11a and main body bottom second convex portion 11b that are adjacent to each other, and the main body bottom second convex portion 11b is higher than the main body bottom first convex portion and is this. Since it is located on the center side of the bottom of the main body, the rigidity of the container main body can be expected to be improved, and the contents placed on the bottom of the main body can be prevented from being displaced in the longitudinal edge direction. That is, the first convex portion 11a on the bottom of the main body and the second convex portion 11b on the bottom of the main body serve to prevent the contents from slipping, and the second convex portion 11b on the bottom of the main body located particularly on the center side of the bottom 11 of the main body is the first convex portion on the bottom of the main body. Since it is higher than the portion 11a, it is possible to prevent the contents from shifting beyond the second convex portion of the bottom portion of the main body and further toward the center side of the bottom portion of the main body. Further, since the first convex portion 11a at the bottom of the main body and the second convex portion 11b at the bottom of the main body are adjacent to each other, the shape of the bottom plate 31 of the middle plate 3 placed on the container main body 1 is the first convex portion at the bottom of the main body. The shape of the portion and the second convex portion of the bottom of the main body can be easily matched, and the inner plate can be fixed to the main body of the container.

Further, a main body side wall step portion 13a having a substantially horizontal flat portion formed so as to project outward from the circumferential direction of the main body side wall portion 13 provided so as to expand upward from the peripheral edge of the main body bottom portion 11 is further provided. Since the step portion on the side wall of the main body is provided in the circumferential direction of a part of the side wall of the main body in the lateral direction and a part in the longitudinal direction, the shape is partially changed to further increase the rigidity of the container body. Not only is it raised, but with the middle plate 3 placed on the container body 1, the stepped portion on the side wall of the main body serves as a base for the tip 33a of the flange of the middle plate, and the tip of the flange of the middle plate serves on the side wall of the main body. Since it is located near the wall, it is possible to prevent the inner plate 3 from laterally shifting when the lid is open.

The container body 1, the lid 2, and the inner plate 3 in the present embodiment are formed by thermoforming a synthetic resin sheet by, for example, vacuum forming, compressed air forming, vacuum forming, double-sided vacuum forming, hot plate forming, or the like. It is formed by doing. The synthetic resin sheet may be, for example, a polyester resin such as polyethylene terephthalate, a styrene resin such as polystyrene, or an olefin resin such as polypropylene, and a single-layer or multi-layer sheet may be used. As the resin, for example, a foamed resin is preferable because it is lightweight and has heat insulating properties. Further, the front surface or the back surface of the sheet may be covered with a synthetic resin film, and when the front surface is covered, printing may be performed. The thickness of the synthetic resin sheet is not particularly limited, but may be 0.15 to 0.5 mm, preferably 0.18 to 0.45 mm, and more preferably 0.2 to 0.35 mm.

The packaging container in the present invention, and the container body, lid, and inner plate of the packaging container are not limited to food manufacturing and retailing, but are used in, for example, industries related to eating and drinking, advertising, entertainment, medical care, nursing care, and toys for children. Widely available.

1 Container body 11 Main body bottom 11a Main body bottom first convex part (main body bottom convex part, first convex part)
11b Main body bottom second convex portion (second convex portion 11)
12 Main body boundary 13 Main body side wall 13a Main body side wall step 13b Main body side wall step partition 14 Main body flange 14a Main body flange Flat part (flat part)
14b Main body flange inclined part 2 Lid body 21 Lid body top surface part 22 Lid body top surface rib part 22a Lid body top surface rib steeply inclined part (steep inclined part)
22b Lid top surface rib gentle slope (slow slope)
22c Lid top rib end 23 Lid side wall 24 Lid flange 24a Lid flange fitting part 24b Lid flange tip 3 Middle plate 31 Middle plate bottom 31a Middle plate bottom convex part 32 Middle plate side wall 32a Middle plate side wall upper end 33 Middle plate flange 33a Middle plate flange tip

Claims (5)

A packaging container including a container body for accommodating the contents, a middle plate taller than the container body, and a lid for closing the container body with the middle plate placed on the container body.
It has a middle plate fixing mechanism that fixes the position of the middle plate in the closed state.
The middle plate fixing mechanism is
The inner plate abuts and is fixed to the bottom of the main body of the container body, the side wall of the main body, and the top surface of the lid of the lid .
The rib shape of the top surface of the lid of the lid matches the shape of the upper end of the side wall of the middle plate of the middle plate.
A packaging container characterized in that the upper end shape of the inner plate side wall portion is the upper end portion of the inner plate side wall portion housed in the lid top surface rib portion. The middle plate fixing mechanism further
The convex shape of the bottom of the main body of the container body matches the convex shape of the bottom of the middle plate of the middle plate.
Packaging container according to claim 1 in which the tip shape of the inner tray flange portion in said dish and stepped shape of the body sidewall portion of the container body and having a match Organization. The convex shape of the bottom of the main body is a convex portion of the bottom of the main body that protrudes upward from the bottom of the main body.
The stepped shape of the side wall of the main body is a stepped side wall of the main body having a substantially horizontal flat portion formed so as to project outward from the circumferential direction of the side wall of the main body.
The rib shape of the lid top surface portion is a mountain-shaped lid top surface rib portion protruding upward along a part of the peripheral edge of the lid body top surface portion.
The convex shape of the bottom of the inner plate is a convex portion of the bottom of the inner plate having substantially the same shape that covers the convex portion of the bottom of the main body.
The tip shape of the inner plate flange portion is a flat inner plate flange tip portion placed on the flat portion of the side wall step portion of the main body.
Packaging container according to claim 2, wherein the this. The main body of the packaging container that houses the contents.
It has at least a convex part on the bottom of the main body that protrudes upward from the bottom of the main body, which is substantially rectangular in plan view.
The bottom convex portion of the main body has an arch-shaped first convex portion and a second convex portion parallel to the short edge and adjacent to each other.
The container body of the packaging container, wherein the second convex portion is higher than the first convex portion and is located on the center side of the bottom portion of the main body. Further provided is a stepped portion of the side wall of the main body having a substantially horizontal flat portion formed so as to project outward from the circumferential direction of the side wall of the main body which is provided so as to expand upward from the peripheral edge of the bottom of the main body.
The container body of the packaging container according to claim 4 , wherein the step portion on the side wall of the main body is provided in a circumferential direction of a part of the side wall portion of the main body in the lateral direction and a part in the longitudinal direction.

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