JP2011011779A - Packaging container - Google Patents

Abstract

A packaging container capable of preventing water droplets and the like inside a container from leaking out of the container is provided.
A packaging container comprising a container main body for containing contents and a lid for closing an opening of the container main body, a main body flange formed on the periphery of the container main body, A body edge portion formed downward from the periphery of the body flange portion, and the lid body includes a lid flange portion formed on a peripheral edge of the lid body so as to face the body flange portion, A lid edge portion formed downward from the periphery of the lid flange portion, and the main body flange portion and the lid flange portion are spaced apart so as not to cause capillary action due to water over the entire area; and The main body edge portion and the lid edge portion are configured to contact each other, and a lid flange portion inner peripheral projection positioned inward of the main body flange portion along the inner periphery of the lid flange portion. Package characterized by being formed Depends on the wearing container.
[Selection] Figure 3

Description

  The present invention relates to a packaging container that can mainly store various processed foods, and more particularly to a packaging container suitable for storing warm processed foods.

  As this type of packaging container, a container having a container main body for storing contents and a lid for closing the opening of the container main body is generally known. The packaging container may be displayed in a state in which stored items such as prepared foods and processed foods are stored, or may be used for storing foods purchased in stores and taking them home on the spot. is there.

  However, when a warm food is stored in the packaging container and a time elapses with the lid closed, condensation occurs or water droplets adhere to the inside of the packaging container lid. If such a container is displayed in an inclined state, or if the packaging container is tilted while being taken home, such moisture will be transferred to the joint surface between the container body and the lid body through the lid. There was a problem of leaking to the outside of the container due to capillarity that occurred and reached in the gap.

Conventionally, in order to prevent such moisture leakage, a packaging container has been proposed in which a space part is formed between the flange of the container body and the peripheral part of the lid so as to partially form a space between each other. (Patent Document 1 below).
According to the packaging container having such a configuration, the capillarity can be blocked by the space portion, and even when water droplets adhering to the inside of the lid flow toward the peripheral edge side of the lid, There is an effect that the flow of water droplets can be cut off and leakage of water droplets to the outside of the container can be prevented.

JP 2002-362463 A

  However, even in the container described in Patent Document 1, for example, when the amount of water droplets is large or when the container is inclined, water droplets may leak out, and a container that can more reliably prevent water droplet leakage is desired. It was.

  An object of the present invention is to provide a packaging container that can prevent water droplets and the like inside a container from leaking out of the container.

  A packaging container according to the present invention is a packaging container including a container main body for containing contents and a lid that closes an opening of the container main body, and is formed on the periphery of the container main body. A main body flange portion and a main body edge portion formed downward from the periphery of the main body flange portion are provided, and the lid body has a lid formed on the periphery of the lid body so as to face the main body flange portion. A flange portion and a lid edge portion formed downward from the periphery of the lid flange portion are provided so that the main body flange portion and the lid flange portion do not cause capillary action due to water over the entire area. A lid that is spaced apart and configured so that the main body edge and the lid edge are in contact with each other, and further, is a lid that is positioned inward of the main body flange along the inner periphery of the lid flange. Flange inner peripheral protrusion is formed And features.

  In addition, each structure of the container main body and the lid main body in the present invention specifies the state when the lid is closed, and the outward refers to a direction extending substantially horizontally from the inside of the container to the outside of the container. Good, the inside means a direction extending substantially horizontally from the outside of the container to the inside of the container, and the upper and lower means the upper and lower in the vertical direction when the container is placed on a horizontal surface. Is.

  According to the packaging container having such a configuration, the lid flange portion inner peripheral protrusion is formed inward of the main body flange portion along the inner periphery of the lid flange portion. The water droplets that have flowed down and flowed down to the inside of the main body flange portion, and it is possible to prevent the water droplets from entering between the main body flange portion and the lid flange portion. Further, the main body flange portion formed on the peripheral edge of the container main body and the lid flange portion formed on the peripheral edge of the lid so as to face the main body flange portion do not cause capillary action due to water over the entire area. Since the main body flange portion is inclined so as to become higher toward the outside of the container, it is effective that water drops move outward through the gap between the main body flange portion and the lid flange portion. Can be prevented. Such an action can prevent water droplets from leaking outside the container.

  In the packaging container according to the present invention, preferably, an inner peripheral protrusion protruding upward is formed on the inner side of the main body flange portion, and becomes lower inward on the outer side of the main body flange portion. It is assumed that an inclined surface inclined as described above is formed.

  According to the packaging container having such a configuration, when the main body flange portion inner peripheral projection protruding upward is formed inside the main body flange portion, if a large amount of water drops enter the gap between the flanges. Even so, the water droplets are transmitted in the circumferential direction along the flange inner circumferential projection by capillary action, and can be prevented from flowing out of the container. In addition, since an inclined surface that is inclined so as to become inwardly lower is formed on the outer side of the main body flange portion, it is assumed that a large amount of water drops over the inner peripheral protrusion of the main body flange portion. However, it can prevent flowing out of the container.

  Furthermore, the packaging container according to the present invention is preferably configured such that a gap between the main body flange portion and the lid flange portion expands outward.

  If the gap between the main body flange portion and the lid flange portion is configured to expand outward, in the unlikely event that a large amount of water drops enter the gap between the main body flange portion and the lid flange portion However, a force that keeps the inner space at a narrow interval acts due to the surface tension of water, and leakage of water droplets to the outside of the container can be prevented more reliably.

  In the packaging container according to the present invention, it is preferable that the inner circumferential protrusion of the main body flange is divided in the circumferential direction by a notch.

  According to the packaging container having such a configuration, even if a water droplet enters between the main body flange portion and the lid flange portion, the water droplet is returned to the inside of the container through the notch portion. And leakage of water droplets outside the container can be prevented more reliably.

  In addition, the packaging container according to the present invention is preferably configured so that the inner flange protrusion of the lid flange comes into contact with the container body when the lid is closed.

  According to the packaging container having such a configuration, since the inner flange protrusion of the lid flange and the container main body are in contact with each other, water droplets that have flowed down from the lid top plate to the inner peripheral protrusion of the lid flange section promptly enter the container main body. Therefore, it is possible to more reliably prevent water droplets from leaking outside the container.

  Further, the packaging container according to the present invention is preferably such that the main body edge portion hangs down from the periphery of the main body flange portion, and a main body collar portion projecting outward from the periphery of the main body suspending portion. And the lid edge portion includes a lid hanging portion that hangs down from the periphery of the lid flange portion, and a lid collar portion that projects outward from the periphery of the lid suspending portion, and the body hanging portion and the lid hanging portion It is assumed that engagement means that engage with each other are formed in each part.

  According to the packaging container having such a configuration, by providing the main body collar part and the lid collar part, both can be brought into contact with each other so that the inside of the container is sealed, and the main body flange part and the lid flange part are It becomes easy to be held at the predetermined interval as described above. Moreover, the lid body can be fixed in a closed state by forming engagement means that engage with each other on the main body hanging portion and the lid hanging portion, and these main body hanging portion, main body collar portion, lid hanging portion Since the lid flange portion is disposed outward from the main body flange portion and the lid flange portion, the water droplet leakage preventing effect is exhibited as described above while keeping the inside of the container sealed. be able to.

  In the packaging container according to the present invention, preferably, the container main body and the lid body may be connected by a hinge portion that connects the main body edge portion and the lid edge portion.

  According to the packaging container having such a configuration, the container main body and the lid body are connected by the hinge portion, so that it is easy to use, for example, as a container for packaging warm cooked food or the like sold at a store. At the same time, the leakage of condensed water that tends to occur when such warm cooked food is stored can be prevented by the above-described action.

  As described above, according to the packaging container of the present invention, it is possible to very effectively prevent water droplets inside the container from leaking out of the container. In particular, leakage of water droplets to the outside of the container can be effectively prevented even when warm foods that easily generate water droplets are contained in the container. Moreover, even when the container is tilted and displayed, leakage of water droplets to the outside of the container can be effectively prevented.

The top view (a) and side view (b) which showed one Embodiment of the packaging container which concerns on this invention. The top view which showed the state which removed and removed the cover body 20 from the container main body 10 of this packaging container 1. FIG. Sectional drawing which expanded and showed the peripheral part of this container 1 for packaging at the time of making the container main body 10 obstruct | occluded with the cover body 20. As shown in FIG. Sectional drawing which expanded and showed the side in which the hinge part was provided about the packaging container which concerns on this embodiment, ie, the back side of a container.

  FIG. 1: is the top view (a) and side view (b) which showed one Embodiment of the packaging container based on this invention, and shows the state which covered the cover body 20 on the container main body 10. FIG. . FIG. 2 is a plan view showing a state where the lid 20 is removed from the container body 10 of the packaging container 1 and deployed.

  As shown in FIGS. 1 and 2, the packaging container 1 of the present embodiment includes a substantially rectangular container body 10 and a lid 20 that closes an opening of the container body 10 via a hinge part 30. It is formed integrally. A plurality of containers are stacked in the unfolded state as shown in FIG. 2, and the packaging container 1 is transported to a retail store such as a sugar beet store or a supermarket, where contents such as food are stored in the container body 10. After that, it is distributed and used in the procedure of closing with the lid 20. The contents to be stored are not particularly limited, but from the viewpoint that the effects of the present invention are easily exerted, for example, freshly cooked foods cooked at the retail store are suitable. .

FIG. 3 is an enlarged cross-sectional view of the peripheral portion of the packaging container 1 when the container body 10 is closed with the lid 20.
As shown in FIG. 3, the container body 10 includes a bottom portion 11 on which the above contents are placed, a body peripheral wall portion 12 that stands up while being inclined obliquely upward from the periphery of the bottom portion 11, A main body flange portion 13 extending outward from the upper end of the main body peripheral wall portion 12, a main body hanging portion 14 hanging from the periphery of the main body flange portion 13, and a horizontal direction outward from the lower end of the main body hanging portion 14. And a main body flange 15 projecting from the main body.

  In the present invention, “hanging down” is not limited to the case of hanging down strictly in the vertical direction, but is a concept including the case of tilting downward with an inclination angle.

Further, as the configuration of the main body flange portion 13, a main body flange portion inner peripheral projection 13a is formed along the opening of the container on the inner portion thereof, and the inclined portion is inclined so as to be lowered inward toward the outer portion thereof. 13b is formed.
Further, in the present embodiment, the inner side surface of the main body flange portion inner peripheral protrusion 13a is configured such that the upper inclined surface of the main body peripheral wall portion 12 extends as it is, and the inner surface of the main body flange portion inner peripheral protrusion 13a and the main body The peripheral wall portion 12 forms a single inclined surface with no boundary on one side of the packaging container.

  Furthermore, as shown in FIG. 2, in the packaging container 1 according to the present embodiment, the main body flange portion inner peripheral protrusion 13a is divided in the circumferential direction by a notch portion 13c. In other words, the notch 13c has a part of the main body flange inner peripheral protrusion 13b formed in the circumferential direction along the container opening part, and the inclined part 13b is extended to extend from the main body peripheral wall 12 and It is a part formed so as to be directly continuous. In the packaging container 1 according to the present embodiment, the notch is formed at three to four locations per side of the container.

  In the present embodiment, a plurality of elongate ridges 16 bulging from the bottom 11 are formed in parallel on the bottom 11 of the container body 10. The raised portion 16 can float the content to be stored from the bottom portion 11 of the container body 10 and can prevent the content from getting wet by condensed water. Furthermore, in the present embodiment, a plurality of water reservoirs 17 that are recessed downward from the bottom 11 are formed at the outer portion of the bottom 11, that is, at a position adjacent to the main body peripheral wall 12. By providing such a water reservoir 17, even when a large amount of water drops fall from the lid and the packaging container is tilted, the contents can be prevented from getting wet with the water drops.

  On the other hand, as shown in FIG. 3, the lid body 20 includes a top plate portion 21 that faces the bottom portion 11, and a lid peripheral wall portion 22 that is inclined downward from the periphery of the top plate portion 21 toward the outside. ing. Further, at the periphery of the lid body 20, a lid flange portion 23 that faces the main body flange portion 13 at the time of closing, a lid hanging portion 24 formed downward from the periphery of the lid flange portion 23, A lid flange 25 projecting outward from the lower end of the lid hanging portion 24, and the lid body 20 further includes an inner circumference of the lid flange portion protruding downward along the inner circumference of the lid flange portion 23. A protrusion 26 is provided.

  By providing the lid flange portion inner circumferential projection 26, water droplets condensed on the lid top plate 21 and the lid circumferential wall portion 22 are promptly introduced without being led to the gap between the lid flange portion 23 and the main body flange portion 13, as will be described later. Can be guided to the water reservoir 17 or the like through the peripheral wall portion 12 or the like of the main body.

Further, as shown in FIG. 3, the lower end of the inner flange protrusion 26 of the lid flange portion preferably has a shape that does not have a horizontal plane, and more preferably has a sharp shape in a cross section perpendicular to the circumferential direction. Specifically, it is preferable that the lower end of the lid flange portion inner peripheral projection 26 has a shape such that the horizontal length is 1.5 mm or less or the curvature radius is 3 mm or less in a cross section perpendicular to the circumferential direction. .
By adopting such a shape, when water droplets condensed on the lid top plate 21 and the lid peripheral wall portion 22 flow down, it is possible to prevent the water droplets from growing greatly at the lower end of the lid flange portion inner peripheral projection 26. In other words, if water droplets grow large at the lower end of the lid flange inner circumferential projection 26, there is a higher risk of adhering to the gap between the flanges and leaking to the outside. Can easily fall, prevent the growth of water droplets, and more reliably prevent leakage to the outside.

  Moreover, in this embodiment, the cover flange part 23 becomes a shape inclined so that it might become low toward inward. With such a configuration, even if a water droplet adheres to the lid flange portion 23, it becomes easier for the water droplet to flow inward due to the inclination, in other words, to reduce the possibility of leakage to the outside. Can do.

  As shown in FIG. 3, when the lid is closed, the lid hanging portion 24 is engaged from the outside of the main body hanging portion 14, and the lid 20 is in a state of fitting the container body 10 externally. Further, the lid collar part 25 is in contact with the main body collar part 15. On the other hand, the main body flange portion 13 and the lid flange portion 23 are in a state of being vertically separated to such an extent that capillary action due to water does not occur over almost the entire area. More specifically, the gap between the main body flange portion 13 and the lid flange portion 23 is configured to have a gap of 2 mm to 5 mm in the vertical direction from the main body flange portion, for example, preferably 2.5 mm to 4 mm. It is configured to have a gap.

  Further, engaging means for engaging each other are formed on the main body hanging portion and the lid hanging portion, respectively. Specifically, in the corner portion of the packaging container 1 or the central portion of each side, a protrusion is formed on the main body hanging portion 14, and a hollow portion is formed on the lid hanging portion 24. Both are engaged to hold the lid on the container body.

  According to the packaging container having such a configuration, normally, at least a part thereof is configured to be in contact with each other, and the flange portion that exhibits the function of creating a sealed state of the container is dared to prevent the entire region from contacting. By comprising, it can prevent effectively that a water droplet leaks out of a container via this flange surface.

Moreover, in this embodiment, the clearance gap between the said main body flange part 13 and the said cover flange part 23 is comprised so that it may expand toward outward. In other words, the lid flange portion 23 is configured so that the inclination angle of the lid flange portion 23 is larger than that of the inclined portion 13b formed on the outer portion of the main body flange portion 13. More specifically, the inclined portion 13b of the main body flange portion 13 is larger than 0 ° and not larger than 50 °, preferably 5 to 40 °, and the inclined angle of the lid flange portion 23 is larger than 0 ° and not larger than 60 °, preferably 5 to 45 °, and the difference between the two is 2 to 30 °, preferably 5 to 10 °.
In other words, in the present embodiment, the gap between the main body flange portion 13 and the lid flange portion 23 is configured to expand outward, thereby preventing leakage by the inclined portion 13b as described above. In addition to the leakage preventing action by the inclined lid flange portion 23 as described above, further leakage prevention is achieved by the action of trying to keep the gap inward by a surface tension of water.

  Further, in the present embodiment, the lower end of the lid flange portion inner peripheral projection 26 is configured to contact the main body peripheral wall portion 12. With such a configuration, water droplets flowing down from the lid top plate 21 and the lid peripheral wall portion 22 can be easily transmitted to the main body peripheral wall portion 12, and can be prevented from entering the gap of the flange portion. Further, if the lower end of the lid flange portion inner peripheral protrusion 26 is in contact with the main body peripheral wall portion 12, the risk that water droplets accumulated in the water reservoir portion 17 etc. will enter the flange portion due to the inclination of the container or the like is reduced. Can be made.

FIG. 4 is an enlarged cross-sectional view of the packaging container according to the present embodiment on the side where the hinge portion is provided, that is, the rear side of the container. It is shown.
As shown in FIG. 4, the configuration of the container body 10 and the lid body 20 and the closed state are also provided on the rear side of the container, except that the main body collar part 15 and the lid collar part 25 are connected by a hinge part. The relationship between them is almost the same as that on the front side of the container.
ing.

  Although not specifically mentioned, the container main body 10 and the lid body 20 in the present embodiment can be formed by, for example, a thermoforming method, and the boundary portions of the above-described parts are continuous and necessary. It is formed in a curved (rounded) manner with a corresponding curvature radius.

  The packaging container according to the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

For example, in the above embodiment, the case where the lid flange portion inner circumferential protrusion is configured to come into contact with the main body circumferential wall portion 12 when the lid is closed has been described, but the present invention is not limited to such an aspect. When the lid is closed, the inner peripheral protrusion of the lid flange portion may not come into contact with any part of the container body. Even in such a case, since the inner peripheral protrusion of the lid flange portion is configured to be located inward of the main body flange portion, the generated water droplets can be reliably guided to the inside of the container.
In addition, when the inner flange protrusion of the lid flange portion does not contact the container body, it is preferable that the inner flange protrusion of the lid flange portion extends downward from the main body flange portion. Water droplets can be quickly guided to the lower part of the container body without entering the gaps in the flange.

  Moreover, although the said embodiment demonstrated the case where the space | interval of a main body flange part and a cover flange part was comprised so that it might expand outward, this invention is not limited to such an aspect. For example, a configuration in which the interval is substantially uniform or a configuration in which the interval is reduced toward the outside may be employed.

  Further, in the above embodiment, the case where the main body edge portion is composed of the main body hanging portion and the main body collar portion and the lid edge portion is composed of the lid hanging portion and the lid collar portion has been described. The present invention is not limited to such a mode, and various configurations can be adopted in which the main body flange portion and the lid flange portion can face each other at a predetermined interval as described above.

  Furthermore, although the said embodiment demonstrated the case where a container main body and a cover body were integrally comprised because the main body collar part and the lid collar part were connected by the hinge part, this invention is such an aspect. However, the container body and the lid may be configured separately.

  Further, although not shown in the drawings, the end portion of the lid (for example, the outer peripheral portion of the lid collar) is subjected to fine uneven processing and embossing by thermoforming, so that a waveform (sine wave, triangular wave) is obtained in a side view. , Trapezoidal wave, etc.), that is, an outer edge line that is not a straight line may be provided. Thereby, since the sharpness of the edge of the outer periphery of the lid is eliminated, the fingertip when opening and closing the lid can be protected, and when wrapping using a packaging film (not shown) The packaging film can be prevented from tearing. Further, the strength of the outer peripheral edge of the lid is increased, and there is an effect of preventing the lid from tearing. In addition, you may give the various measures for eliminating the sharpness of the edge of an outer periphery mentioned above to the outer peripheral part (namely, outer peripheral part of a main body collar part) of a container main body.

  In the above embodiment, the case where the container body 10 and the lid body 20 are rectangular has been described, but the present invention is not limited to the horizontal cross-sectional shape of the container, and any shape can be adopted. For example, a polygonal shape, an elliptical shape, a circular shape, or the like can be adopted.

DESCRIPTION OF SYMBOLS 1 ... Container for packaging, 10 ... Container main body, 11 ... Bottom part, 12 ... Main body surrounding wall part, 13 ... Main body flange part, 13a ... Main body flange part inner peripheral protrusion, 13b ... Inclined part, 13c ... Notch part, 14 ... Main body drooping , 15 ... body collar part, 16 ... raised part, 17 ... water reservoir, 20 ... lid body, 21 ... lid top plate, 22 ... lid peripheral wall part, 23 ... lid flange part, 24 ... lid bottom part, 25 ... Lid of lid, 26 ... Inner protrusion of lid flange, 30 ... Hinge

Claims (7)

A packaging container comprising a container body for containing contents and a lid for closing an opening of the container body,
A main body flange portion formed on the peripheral edge of the container main body, and a main body edge portion formed downward from the periphery of the main body flange portion;
The lid body is provided with a lid flange portion formed on the periphery of the lid body so as to face the main body flange portion, and a lid edge portion formed downward from the periphery of the lid flange portion,
The main body flange portion and the lid flange portion are separated to the extent that capillary action due to water does not occur over the entire area, and the main body edge portion and the lid edge portion are configured to contact each other,
Furthermore, along the inner circumference of the lid flange portion, a lid flange portion inner circumferential projection is formed that is located inward of the main body flange portion.
A packaging container characterized by that.   An inner peripheral projection of the main body flange portion that protrudes upward is formed inside the main body flange portion, and an inclined portion that is inclined so as to become lower inward is formed on the outer side of the main body flange portion. The packaging container according to claim 1.   The packaging container according to claim 1, wherein a gap between the main body flange portion and the lid flange portion is configured to expand outward.   The packaging container according to any one of claims 1 to 3, wherein the inner circumferential protrusion of the main body flange portion is divided in the circumferential direction by a notch portion.   The packaging container according to any one of claims 1 to 4, wherein the inner circumferential protrusion of the lid flange portion is configured to contact the container body when the lid is closed.   The main body edge portion includes a main body hanging portion hanging from the periphery of the main body flange portion, and a main body collar portion projecting outward from the periphery of the main body hanging portion, and the lid edge portion includes A lid hanging portion hanging from the periphery and a lid collar portion projecting outward from the periphery of the lid hanging portion, and engaging means for engaging each other are formed in the body hanging portion and the lid hanging portion, respectively. The packaging container according to claim 1, wherein the packaging container is a packaging container.   The packaging container according to any one of claims 1 to 6, wherein the container body and the lid are connected by a hinge portion that connects the body edge and the lid edge.

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