JP5164697B2 - Packaging container - Google Patents

Description

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

  Conventionally, as a packaging container for storing various foods such as bento, sushi, prepared dishes, fresh products such as meat and sashimi, and cooking materials, a plastic container body having a food container and a transparent container body. A packaging container that is covered with a lid is known. This type of packaging container includes a main body part in which the container main body constitutes a container for contents, and an outer peripheral part provided along the outer periphery of the main body part, while the lid is detachable from the container main body. It is configured.

Specifically, this type of packaging container is attached to the container body so that the lid covers the opening of the container body, and the engaging protrusion is provided on the outer periphery of the container body, while the lid has An engaging convex portion that engages with the engaging convex portion of the container body is provided, and the engaging convex portion of the container main body and the engaging convex portion of the lid engage with each other so that the lid can be attached to and detached from the container main body. A so-called external fitting type is known (Patent Document 1).
JP 2004-83089 A

  However, since the packaging container as described above is engaged with the engaging protrusions being overlapped with each other in a state where the lid is attached to the container body, the engaging force is strong. There was a difficult surface to remove when removing. For example, when removing the lid, the corner portion of the lid is raised upward, but the engaging convex portions are engaged with each other so that the engaging convex portions are entirely overlapped with each other. A large force is required to get over the engaging convex part of the main body.

  Accordingly, the present invention has been made in view of the above problems, and a packaging container that can easily remove the lid attached to the container body and can reliably maintain the state attached to the container body. It is an issue to provide.

  The packaging container according to the present invention is configured to solve the above problems, and includes a container body having a corner portion and a lid that is detachably attached to the container body so as to cover the opening of the container body. In the packaging container provided, the container main body includes a main body portion that constitutes a content storage portion, and an outer peripheral portion that is provided along the outer periphery of the main body portion. Engaging protrusions projecting to either one of the inner sides are provided, and the lid is provided along the outer periphery of the lid main body that forms the container for the contents together with the main body of the container main body. A lid outer peripheral portion, and the lid outer peripheral portion is provided with an engaging convex portion that protrudes outward or inward and engages with the engaging convex portion of the container main body. Either the engaging projection or the lid engaging projection Also in the corner portion side, characterized in that the projection height is configured to be gradually or stepwise lower toward the corner portion.

  According to such a configuration, the protruding height of either the engaging convex portion of the container body or the engaging convex portion of the lid is gradually or stepwise lowered toward the corner portion at least on the corner portion side. In the state where the lid is attached to the container body, the engagement between the engaging protrusions gradually or gradually becomes shallower toward the corner portion. The force required to get over the engaging projection is reduced. For this reason, for example, when pulling up the corner portion of the lid and removing the lid, the engagement is easily released from the vicinity of the corner portion, and the lid can be easily removed. Moreover, in the position away from the corner part, since the engaging convex parts are deeply engaged with each other with the lid attached, the state where the lid is attached to the container body can be reliably maintained. Further, when the lid is attached, the closer to the corner portion, the easier it is to engage the engaging convex portion of the container body and the engaging convex portion of the lid, so that the lid can be easily attached.

In addition, the packaging container according to the present invention further includes a peripheral frame attached so as to surround the container main body, and the lid is attached to and detached from the container main body so as to cover the respective openings of the container main body and the peripheral side frame. It mounted for Ru.

  According to such a configuration, the appearance is better than the packaging container including the container body and the lid, and the commercial value can be increased. Further, when the peripheral side frame has heat insulation properties such as foamed plastic, even if the contents are heated by a microwave oven or the like, the handle is not heated due to the heat insulation properties of the peripheral side frame.

Furthermore, packaging containers according to the present invention, the outer peripheral portion of the container body, ing is configured to gradually lower toward the middle portion of each side of the container body.

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

  As described above, according to the present invention, the protruding height of any one of the engaging convex portion of the container body and the engaging convex portion of the lid is gradually or stepwise reduced toward the corner portion at least on the corner portion side. By forming in this way, when the engaging projections are engaged with each other, a portion with a weak engaging force and a strong portion are formed, so the lid can be easily removed by applying a force to the portion with a weak engaging force. In addition, the portion having a strong engaging force can be reliably maintained in the state where the lid is attached.

  Hereinafter, a packaging container (hereinafter simply referred to as “container”) according to an embodiment of the present invention will be described with reference to FIGS. In addition, in the following description, the terms “outward” and “inward” may be used. “Outward” refers to a direction spreading in the horizontal direction when viewed from the center of the container. "" Refers to the direction from the outside toward the center of the container in the horizontal direction. However, the terms “outward” and “inward” include not only the case where they coincide with the horizontal direction, but also the direction in which they are inclined within a certain angle range.

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

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

  The container body 1 and the lid 3 are configured by thermoforming a plastic sheet (synthetic resin sheet). As the plastic, for example, polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), etc. are used alone, Or what mixed 2 or more types is used. In addition, inorganic substances such as talc and calcium carbonate may be added to these resins, and a compatibilizing agent may be added when two or more kinds of resins are used in combination. The container body 1 may be a colored non-foamed sheet or a foamed sheet, and the lid 3 is transparent in that the contents can be visually recognized through the lid 3. preferable. On the other hand, the peripheral frame 2 is formed by bending a foamed plastic strip-like material into a quadrangle (square) along the outer peripheral edge of the container body 1 and fixing the ends with an adhesive. The peripheral frame 2 may be decorated with a grain or the like on the outer surface in order to create a high-class feeling.

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

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

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

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

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

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

  The attachment portion 17 is provided on the inner wall of the peripheral frame 2. More specifically, the attachment portion 17 is inserted into a slit 21 provided along the circumferential direction at a location above the intermediate location on the inner wall. In order to fix 17, the container body 1 and the peripheral frame 2 are integrated using an adhesive (not shown). As a means for integrating the container main body 1 and the peripheral side frame 2, the container main body 1 and the upper end surface or the lower end surface of the peripheral side frame 2 may be integrated by bonding or heat-sealing. . Moreover, it is not limited to the adhering means such as an adhesive or heat fusion. For example, the attachment portion 17 may bite into the inner wall or the slit 21 of the peripheral side frame 2, or the attachment portion 17 falls off from the slit 21. If there is no such thing, the peripheral side frame 2 may be simply wrapped around the container body 1 without using an adhering means such as an adhesive or heat fusion.

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

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

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

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

  The convex portion 18a of the container body 1 includes an engaging convex portion 19 that swells (inward), while the concave portion 41 of the lid 3 includes an engaging convex portion 42 that swells (outward). The engaging convex portion 42 is located above the engaging convex portion 42 in a state where the lid 3 is attached to the container main body 1 and the concave portion 41 of the lid 3 is externally fitted to the convex portion 18 a of the container main body 1. It is adapted to be engaged with the joint projection 19. Moreover, since the engaging convex portion 19 and the engaging convex portion 42 are engaged with each other in the direction intersecting the attaching / detaching direction of the lid 3 with respect to the container main body 1, the convex portion 18 a of the container main body 1 including the engaging convex portion 19. Has a function as a fitting convex portion, while the concave portion 41 of the lid 3 having the engaging convex portion 42 has a function as a fitting concave portion, and the container body 1 and the lid 3 are fitted to each other. The structure (attachment structure of the lid) is a so-called internal / external fitting type.

  Here, referring to the engaging convex portion 19 and the engaging convex portion 42 in more detail, the engaging convex portion 19 is such that a portion of the upright portion 14 on the top portion 15 side protrudes toward the center side of the container body 1. The molded convex portion 42 functions as the engaging convex portion 19, while the engaging convex portion 42 is opposite to the center side of the lid 3 (same as the central side of the container main body 1). The inner surface side functions as the engaging convex portion 42. In other words, the engaging convex portion 19 is formed such that the inner side wall (standing portion 14) of the convex portion 18a swells inward, while the engaging convex portion 42 is formed of the concave portion 41. Among them, the inner side wall (standing portion 35) is formed so as to bulge outward, and the bulge of the engaging convex portion 42 gets over the bulge of the engaging convex portion 19 and is engaged with the engaging convex portion 19 from above. Thereby, the container main body 1 and the lid | cover 3 are integrated.

  Further, the engaging convex portion 19 is formed such that the protruding height (bulge height) gradually decreases toward the corner portion at least on the corner portion side of the container body 1. More specifically, the engaging convex portion 19 is formed around the corner portion of each side of the container body 1, and is formed such that the protruding height of the engaging convex portion 19 gradually decreases toward the corner portion. . On the other hand, the engaging convex portion 42 is formed at a position that can be engaged with the engaging convex portion 19, and has the same height as the highest projecting portion (the most swollen portion) of the engaging convex portion 19. It is formed so as to protrude uniformly. For this reason, in the state where the engaging convex portion 19 and the engaging convex portion 42 are engaged, the region where the engaging convex portion 19 and the engaging convex portion 42 are engaged (the engaging convex portion 19 and the engaging convex portion. The region overlapping with 42) becomes gradually narrower toward the corner. In other words, the engagement between the engaging convex portion 19 and the engaging convex portion 42 is configured to gradually become shallower toward the corner portion. In FIG. 1, the engaging convex portion 19 is shown such that the protruding height gradually decreases toward the corner portion. However, even if the engaging convex portion 19 is formed so as to gradually decrease. In other drawings, it is shown in detail that the engaging projections 19 are gradually or stepwise lowered.

  The first flange 38 faces the upper surface of the peripheral frame 2 and overlaps the upper surface, and the second flange 39 faces the outer surface on the upper end side of the peripheral frame 2 and the outer surface. Therefore, the outer peripheral edge 43 including the first flange 38, the second flange 39, and the edge 40 is covered on the upper end of the peripheral frame 2. Thereby, not only the opening of the container main body 1 but also the opening of the peripheral side frame 2 can be completely covered by the lid 3 (the outer peripheral edge 43 thereof). Various measures for eliminating the sharpness of the edge of the outer periphery of the lid 3 described above are applied to the edge 40.

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

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

  Further, the engaging convex portion 19 and the engaging convex portion 42 are formed with a predetermined length along the circumferential direction of the container main body and the circumferential direction of the lid, and are formed only at the corner portion of the container main body 1 or the lid 3. (See FIG. 1). Note that a pair of the engaging convex portion 19 and the engaging convex portion 42 are provided on each of two sides intersecting each other at each corner portion.

  The container according to the present embodiment is configured as described above, and the engagement between the engaging convex part 19 and the engaging convex part 42 becomes gradually shallower toward the corner part with the lid 3 attached to the container main body 1. Therefore, the force when the engaging convex portion 42 gets over the engaging convex portion 19 decreases toward the corner portion, and for example, the engagement can be easily released by pulling the corner portion upward, In the part away from the corner part, the engaging convex part 19 and the engaging convex part 42 are deeply engaged, so that the state where the lid is attached can be reliably maintained. That is, according to the container according to the present embodiment, it is possible to easily remove the lid 3 and to have two seemingly contradictory effects such as reliably maintaining the state where the lid is attached.

  Moreover, the paragraph part 33 in the corner part is not formed in the intermediate part of each side of the container main body 1, and the paragraph part 33 is absorbed by the peripheral wall part 32. Therefore, in the intermediate part of each side of the container main body 1, the inclination of the surrounding wall part 32 is gentle, and the front-end | tip protrudes outward. By being configured in this way, the food contained in the container body 1 can be easily seen through the transparent lid 3, and the appearance at the corner of the container and the appearance at the middle of each side of the container are greatly different. It becomes possible to make the whole design novel.

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

  For example, in the above-described embodiment, the engaging convex portion 19 is formed so that the protruding height gradually decreases toward the corner portion of the container body 1, but is not limited to this, and FIG. As shown in FIG. 5, the engaging convex portion 19 ′ may be formed to be tapered toward the corner portion. More specifically, as shown in FIGS. 4A and 4B, the engaging convex portion 19 ′ has a uniform convex portion 60 having a uniform protrusion height and a tapered shape from the uniform convex portion 60 toward the corner portion. The taper convex part 61 formed in this may be comprised. As shown in FIG. 5A, the uniform convex portion 60 is preferably formed with a projection height equal to or substantially equal to the projection height of the engagement convex portion 42. Moreover, it is preferable that the uniform convex part 60 is provided with the outer peripheral surface formed in circular arc shape. The tapered convex portion 61 is formed on the corner portion side of the uniform convex portion 60, and as shown in FIGS. 5B and 5C, the protruding height decreases and the width decreases toward the corner portion side. It is preferable to be formed as follows. Moreover, the taper convex part 61 is formed so that it may taper toward the top part 15 side of the container main body 1 as it goes to a front-end | tip part (as it goes to a corner part), as shown to FIG.5 (b) (c). It is preferable.

  With this configuration, as shown in FIG. 5A, the uniform convex portion 60 and the engaging convex portion 42 can be engaged deeply. On the other hand, the taper convex portion 61 does not come into contact with the engaging convex portion 42 as shown in FIGS. 5B and 5C, and the taper convex portion 61 and the engaging convex portion become closer to the corner portion. Since the engagement with the surface 42 becomes shallow, by raising the corner portion of the lid 3 upward, the engagement convex portion 42 is inclined toward the taper convex portion 61 side, and the taper convex portion 61 is easily overcome. Therefore, it is possible to easily remove the lid.

  Moreover, in the said embodiment, although the convex part 19 for engagement is formed so that protrusion height may become low gradually as it goes to a corner part, it is not limited to this, FIG.6 and FIG.7. As shown, the engaging convex portion 19 '' may be formed such that the protruding height decreases stepwise toward the corner portion. Specifically, as shown in FIGS. 6A and 6B, the engaging convex portion 19 '' has a high convex portion 62 having a high projecting height and a low convex portion projecting lower than the high projecting portion 62. It may be composed of a part 63 and an inclined convex part 64 whose height gradually decreases from the high convex part 62 to the low convex part 63. More specifically, the high convex portion 62 and the low convex portion 63 are formed so that the protruding heights thereof are uniform, and the low convex portion 63 may be formed closer to the corner than the high convex portion 62. preferable. And it is preferable that the inclination convex part 64 is formed so that the height difference of the high convex part 62 and the low convex part 63 may be connected. Moreover, in the said embodiment, although the convex part 19 for engagement is provided in the standing part 14, it is not limited to this, As shown to Fig.7 (a)-(c), the convex part 19 for engagement is shown. '' May be provided on the drooping portion 16 so as to protrude outward. Accordingly, the engaging convex portion 42 ′ may be provided on the hanging portion 37 so as to protrude inward.

  Moreover, in the said embodiment, although the convex part 19 for engagement is horizontally formed in each edge | side of the container main body 1, it is not limited to this, As shown in FIG.8 and FIG.9, for engagement, The engaging convex portion 19 ′ ″ may be provided so as to be inclined toward the intermediate portion of each side of the container body 1 where the convex portion 19 ′ ″ is formed. Specifically, as shown in FIGS. 8A and 8B, the engaging convex portion 19 ′ ″ includes an inclined upper end portion 65 that is inclined toward the intermediate portion of each side of the container body 1, and the engaging convex portion 19 ′ ″. It is preferable that a locking lower end portion 66 for locking the convex portion 42 is provided. The locking lower end portion 66 is connected to the inclined lower end portion 67 that is inclined toward the middle portion of the container body 1 and the inclined lower end portion 67, and is formed horizontally or substantially horizontally along the circumferential direction of the container body 1. It is preferable to provide a horizontal lower end 68. On the other hand, the engaging convex portion 42 ″ includes a locking lower end 66, that is, an inclined upper end 69 and a horizontal upper end 70 formed so as to correspond to the inclined lower end 67 and the horizontal lower end 68, and the container body. It is preferable to provide a horizontal lower end 71 formed horizontally along the circumferential direction.

  With this configuration, when the engaging convex portion 19 ′ ″ and the engaging convex portion 42 ″ are engaged, the upper end portion 72 and the horizontal lower end portion 71 of the engaging convex portion 19 ′ ″ are engaged. Therefore, the contact surface is small, and the force when the engaging convex portion 42 ″ gets over the engaging convex portion 19 ′ ″ can be reduced. Further, the inclined upper end portion 69 and the horizontal upper end portion 70 are provided with shapes corresponding to the inclined lower end portion 67 and the horizontal lower end portion 68, so that as shown in FIGS. '' And the engaging convex portion 42 '' are in contact with each other at a wide portion from the inclined lower end portion 67 to the horizontal lower end portion 68, so that the engaging convex portion 19 ′ ″ and the engaging convex portion 42 ″ are securely connected. And the protrusion 19 ′ ″ for engagement is formed so that the protruding height gradually decreases toward the corner, so that the lid can be easily removed as in the above embodiment. be able to.

  Also, as shown in FIGS. 10 and 11, a part of the horizontal lower end 71 of the engaging convex portion 42 ″ of the embodiment according to FIGS. A part may be formed so as to be parallel or substantially parallel to the inclined upper end part 69 to form the inclined bottom part 73. Further, the engaging convex portion 19 ″ ″ and the engaging convex portion 42 ′ ″ may be formed inside the convex portion 18a of the container body 1.

  Moreover, in embodiment shown in FIGS. 4-11, it is formed so that the protrusion height of the convex part 19 for engagement of the container main body 1 may become low gradually or in steps toward the corner part of the container main body 1. FIG. However, the present invention is not limited to this, and the protruding height of the engaging convex portion 42 of the lid 3 may be gradually or stepwise lowered toward the corner portion of the lid 3 as described above. Good.

  Moreover, in the said embodiment, although the peripheral side frame 2 is attached to the outer periphery of the container main body 1 so that the outer periphery of the container main body 1 may be enclosed, it is not limited to this, A peripheral side frame is attached. Instead, the container may be composed of the container body 1 and the lid 3.

The top view of the container for packaging concerning one embodiment of the present invention is shown. FIG. 2 is a sectional view taken along line AA in FIG. 1. (A) is a B arrow view of FIG. 1, (b) is a C arrow view of FIG. (A) and (b) are the principal part enlarged views of the packaging container which concerns on other embodiment of this invention, respectively, (a) is related with the convex part for engagement of a container main body, and the convex part for engagement of a lid | cover. FIG. 5B is a top view of the combined state, and FIG. 5B is a side view of the state where the engaging convex portion of the container main body is engaged with the engaging convex portion of the lid. (A)-(c) is the principal part expanded sectional view of the packaging container which concerns on other embodiment of this invention, respectively, (a) is the DD sectional view taken on the line of FIG. 4, (b), 4 is a cross-sectional view taken along line EE in FIG. 4, and FIG. 4C is a cross-sectional view taken along line FF in FIG. 4. (A) and (b) are the principal part enlarged views of the packaging container which concerns on other embodiment of this invention, respectively, (a) is related with the convex part for engagement of a container main body, and the convex part for engagement of a lid | cover. FIG. 5B is a top view of the combined state, and FIG. 5B is a side view of the state where the engaging convex portion of the container main body is engaged with the engaging convex portion of the lid. (A)-(c) is the principal part expanded sectional view of the packaging container which concerns on other embodiment of this invention, respectively, (a) is GG sectional view taken on the line of FIG. 6, (b), FIG. 6C is a cross-sectional view taken along line H-H in FIG. 6, and FIG. 6C is a cross-sectional view taken along line II in FIG. 6. (A) and (b) are the principal part enlarged views of the packaging container which concerns on other embodiment of this invention, respectively, (a) is related with the convex part for engagement of a container main body, and the convex part for engagement of a lid | cover. FIG. 5B is a top view of the combined state, and FIG. 5B is a side view of the state where the engaging convex portion of the container main body is engaged with the engaging convex portion of the lid. (A)-(c) is the principal part expanded sectional view of the packaging container which concerns on other embodiment of this invention, respectively, (a) is JJ sectional view taken on the line of FIG. 8, (b), 8 is a cross-sectional view taken along the line KK in FIG. 8, and FIG. 8C is a cross-sectional view taken along the line LL in FIG. (A) and (b) are the principal part enlarged views of the packaging container which concerns on other embodiment of this invention, respectively, (a) is related with the convex part for engagement of a container main body, and the convex part for engagement of a lid | cover. FIG. 5B is a top view of the combined state, and FIG. 5B is a side view of the state where the engaging convex portion of the container main body is engaged with the engaging convex portion of the lid. (A)-(c) is the principal part expanded sectional view of the packaging container which concerns on other embodiment of this invention, respectively, (a) is the MM sectional view taken on the line of FIG. 10, (b), 10 is a sectional view taken along line NN in FIG. 10, and FIG. 10C is a sectional view taken along line OO in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Container main body, 10 ... Main body part, 11 ... Bottom part, 11a ... Bottom surface part, 11b ... Annular recessed part, 12 ... Peripheral wall part, 13 ... Outer peripheral part, 14 ... Standing part, 15 ... Top part, 16 ... Hanging part, 16a ... 1st part, 16b ... 2nd part, 17 ... Mounting part, 18 ... Folded part, 18a ... Convex part (fitting convex part), 19, 19 ', 19' ', 19' '', 19 '' '' ... engagement convex part, 2 ... circumferential side frame, 21 ... slit, 22 ... adhesive, 3 ... lid, 30 ... lid body part, 31 ... ceiling part, 32 ... peripheral wall part, 33 ... paragraph part, 34 ... lid outer periphery 35, standing part, 36 ... top part, 37 ... drooping part, 38 ... first collar part, 39 ... second collar part, 40 ... edge part, 41 ... concave part (fitting concave part), 42, 42 ', 42 '', 42 '' '... engaging convex part, 43 ... outer peripheral edge part, 60 ... uniform convex part, 61 ... tapered convex part, 62 ... high convex part, 63 ... low convex part, 64 ... inclined convex part, 65 ... Top of slope , 66 ... engaging the lower end, 67 ... inclined lower end portion, 68 ... horizontal lower portion, 69 ... inclined upper portion, 70 ... horizontal upper portion, 71 ... horizontal lower portion, 73 ... inclined lower end

Claims (1)

In a packaging container comprising a container main body having a corner portion and a lid that is detachably attached to the container main body so as to cover the opening of the container main body, the container main body includes a main body portion that constitutes a content storage portion; And an outer peripheral portion provided along the outer periphery of the main body, and an engaging convex portion protruding outward or inward is provided at a predetermined position of the outer peripheral portion. The main body of the main body includes a lid main body that constitutes a content container, and a lid outer peripheral provided along the outer periphery of the main body of the lid. An engaging projection that protrudes to the other and engages with the engaging convex portion of the container body, and at least one of the engaging convex portion of the container main body and the engaging convex portion of the lid is at least the corner portion side The protrusion height gradually increases toward the corner. Ri Na is configured to be stepwise lowered, further comprising a peripheral side frame mounted so as to surround the container body, the lid, the container so as to cover the respective opening of the container body and the peripheral-side frame body removably attached to, and, the outer peripheral portion of the container body, the packaging container according to claim Rukoto such are configured to gradually lower toward the middle portion of each side of the container body.

Images