JP2007106443A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To store an article and to stand it and to display it under a stable condition. <P>SOLUTION: In a packaging container, on a part continuous to a joint 4 among side wall parts 2b provided around a face plate part 2a of a container main body, storing article supporting walls 9 and 9 which carry the article to be stored when the container is erected, and an erection rib 8 having an erection bottom wall 8a inclined to the storing article supporting walls 9 and 9 so that it overhangs outside of the container main body than the storing article supporting walls 9 and 9 as it becomes to the face plate part 2a side from the joint 4 side, are formed. When a lid body is closed to the container main body, the end part on the face plate part 2a side of the erection bottom wall 8a and the joint 4 folded and projecting outside of the container function as a grounding parts for erecting the container so that the joint 4 side is erected obliquely so as to be higher in comparison with the side end part side of the face plate part 2a of the erection bottom wall 8a, and when the container is stood, the storing article supporting walls 9 and 9 has a smaller angle of inclination to an installation face for installing the container than the erection bottom wall 8a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a packaging container that can store and store stored items such as rice balls and sandwiches.

Conventionally, as this type of packaging container, a container main body, a lid that is closed to the container main body, and a hinge part that connects the container main body and the lid so as to be openable and closable by being bent are continuously provided. It is known that it is integrally formed and can be erected on the installation surface with the side wall on the hinge part side down in a state where the lid is closed to the container body (for example, Patent Document 1). reference).
JP 2003-31630 A

  However, the packaging container is grounded to the installation surface by an overhanging portion that protrudes outward from the side wall of the hinge portion and an end portion on the opposite side of the hinge portion of the side wall, and is upright with respect to the installation surface. However, the side wall on the hinge part side on which the stored items stored in the packaging container in this standing state are inclined so that the bottom wall side is lowered in the thickness direction of the packaging container. The contents in the packaging container are inclined in the thickness direction of the packaging container and become unstable. Further, on the side wall on the hinge part side, a rib in a direction perpendicular to the hinge part is provided at the middle part in the longitudinal direction of the hinge part so as to protrude outward from the side wall on the hinge part side. When the packaging container is grounded to the installation surface, the inner surface of the side wall on the hinge portion side is deformed into a convex curved surface with the intermediate portion raised, so that the accommodation The lower end of the object is placed on the curved convex portion, and the object is unstable even in the longitudinal direction of the hinge portion. For this reason, when an external force is inadvertently applied to the packaging container in the thickness direction, the packaging container tends to collapse, and there is a risk that a large number of the packaging containers arranged on the display shelf will fall.

  This invention is made | formed in view of the said situation, Comprising: It aims at providing the packaging container which can set up and display as a stable state which accommodates a stored item.

In order to solve the above-described problems, the present invention functions as a container body, a lid body closed to the container body, and a hinge that is bent and deformed so as to connect the container body and the lid body so that the container body can be opened and closed. In the resin packaging container that can be erected with the side face on the side of the connecting part down, with the connecting part formed continuously and in a state where the lid is closed to the container body,
Of the side wall portion provided around the face plate portion of the container main body, the portion that is connected to the connecting portion, the stored item support wall on which the stored item is placed when the container is erected, and the connecting portion side to the face plate portion side. And a standing rib having a bottom wall for standing that is inclined with respect to the stored article support wall so as to protrude to the outside of the container body from the stored article support wall according to
When the lid is closed to the container body, the end of the standing bottom wall on the face plate part side and the connecting part that is deformed so as to be bent and protrudes to the outside of the container are used for container standing. Functioning as a grounding part, can be erected and inclined so that the side of the connecting part is higher than the side of the face plate part side end of the bottom wall for standing.
Moreover, when the container is erected, the stored object support wall has a smaller inclination angle with respect to the installation surface for container installation than the bottom wall for erecting.

  In the packaging container, it is preferable that the stored object support walls are formed on both sides of the bottom wall for standing because a stored object such as a rice ball is stably placed in the longitudinal direction of the connecting portion.

  In the packaging container, a flange portion is provided on an upright portion having an inverted U-shaped cross section erected on the mouth edge portion of the container body, and the container body is closed at the mouth edge portion of the lid body. A stepped portion that is in contact with the upper surface of the upright portion, a hanging portion that is bent so as to be in contact with the outer wall portion of the rising portion continuously from the stepped portion, and a tip extending from the tip of the hanging portion to the outside of the lid. A lid outer edge portion formed of a jaw portion protruding so as to protrude is formed, and the connection portion in the container body and the lid body of the outer wall portion of the standing portion of the container body and the hanging portion of the lid body An engaging portion that engages and disengages when the container main body and the lid body are closed together and engages the lid body with the container main body is formed at a portion located at the opposite end. Can be configured.

  In the packaging container, the outer wall portion and the hanging portion of the standing portion are arranged on one of the outer wall portion of the standing portion on the connecting portion side of the container body and the hanging portion on the connecting portion side of the lid. A concave portion into which the convex portion formed on the other side enters is formed, and the lid body is positioned with respect to the container main body when the convex portion enters the concave portion when the lid body is closed to the container main body. It is preferable that it is such.

  In the packaging container, the container body is formed so that the depth is closer to the side closer to the connection part, and the depth is shallower from the connection part, and the lid body is closer to the connection part. It can be set as the structure formed so that depth might become deep, so that a depth is shallow and it is far from the said connection part.

  In the packaging container, the height of the side wall at the end of the container main body opposite to the connecting portion is 20% of the total container thickness when the lid is closed to the container main body. It is preferable that it is -80%.

  In the packaging container, the height of the side wall at the end of the container main body on the side of the connecting portion is 60 to 92% of the total container thickness when the lid is closed to the container main body. Preferably there is.

According to the present invention, when the container with the contents placed inside the container body and the lid closed is erected on the installation surface, the connecting portion protruding outward from the container is placed on the installation surface. In addition to being grounded, the face plate portion side of the bottom wall for standing of the container body is opposed to the installation surface, and the container is erected in a state where the entire container is inclined to the opposite side with the lid side positioned at the front. . In this state, the bottom wall for standing is inclined with respect to the installation surface so that the face plate portion side is lowered with the inclination of the entire container, but the support material supporting wall is substantially horizontal along the installation surface. Therefore, the stored item stored in the container is erected in a state where the lower end portion thereof is supported by the inner surface of the stored item support wall and is stabilized in a substantially upright state.
Therefore, even though the container is inclined so that the contents can be easily seen, there is no force that causes the container to fall over due to the contents in the container, so that the container containing the contents is extremely stable. In this state, it can be erected and displayed on the installation surface.

Hereinafter, a packaging container according to an embodiment of the present invention will be described with reference to the accompanying drawings.
1 and 2, reference numeral 1 indicates a packaging container according to an embodiment of the present invention. The packaging container 1 functions as a container body 2, a lid body 3 that is closed to the container body 2, and a hinge that connects the container body 2 and the lid body 3 so as to be openable and closable by being bent. In a state in which the connecting portion 4 is continuously formed integrally by molding a transparent synthetic resin material, and the lid 3 is closed to the container body 2 by folding the connecting portion 4 (see FIGS. 5 and 6). The container body 2 can be installed horizontally on the installation surface with the container body 2 side down, or can be installed on the installation surface with the side surface on the connection 4 side down.

The container body 2 has a main body portion with a side wall portion 2b provided around the outer peripheral portion of the face plate portion 2a, and an upright portion 5 having an inverted U-shaped cross section at the mouth edge of the free end of the side wall portion 2b. And a flange portion 6 that protrudes outward is provided at the lower end on the outer side of the upright portion 5. In addition, the inverted U-shaped cross section of the upright portion 5 includes a semicircular shape, a gate shape, a chamfered corner of the portal shape, as well as an inverted U shape.
Further, the lid body 3 has a side wall portion 3b around the outer peripheral portion of the face plate portion 3a to constitute a main body portion, and a lid outer edge portion 7 is formed at the mouth edge portion on the free end side of the side wall portion 3b. Yes.
And in the side wall part 2b1 which is a part connected with the said connection part 4 among the side wall parts 2b of the said container main body 2, in the intermediate part of the width direction (vertical direction in FIG. 1, FIG. 3) of this side wall part 2b1, A standing rib 8 having a bottom wall 8a for standing is formed, and on both sides of the standing rib 8, there are formed storage support walls 9, 9 on which stored items are placed when the packaging container 1 is erected. ing.

  As shown in FIGS. 2 and 5, the standing rib 8 is stretched to the outside of the container main body 2 more than the stored article support walls 9, 9 as it goes from the connecting portion 4 side to the face plate portion 2 a side. It is inclined with respect to the front container support walls 9 and 9 so as to come out. Further, both outer end sides of the stored article support walls 9, 9 are formed in an arc shape in plan view (see FIGS. 1 and 3) and are connected to the other side wall 2b. Furthermore, the corners at both ends of the face plate portion 2a on the side of the connecting portion 4 are formed as inclined surfaces 2c and 2c of about 45 ° that increase from the center side to the outside of the face plate portion 2a. In addition, since the amount of the standing rib 8 that projects from the container support walls 9 and 9 to the outside of the container main body 2 is small, the size of the entire container is unnecessary with respect to the capacity of the container. It will never grow.

  As shown in FIG. 4, the lid outer edge portion 7 of the lid 3 is placed on the upper surface 5 a of the upright portion 5 of the container body 2 when the lid 3 is closed to the container body 2 (closed state). A stepped portion 7a that abuts, a hanging portion 7b that is continuously bent from the stepped portion 7a so as to be in contact with the outer wall portion 5b of the upright portion 5; It is formed from a jaw portion 7c protruding so as to protrude. And one upper end part of the said connection part 4 formed in the U-shaped cross section is connected with the outer end part of the said flange part 6 of the standing part 5 in the connection part 4 side of the container main body 2, and the other upper end The portion is connected to the jaw portion 7 c on the connecting portion 4 side of the lid 3.

  A concave portion 5c is formed in the outer wall portion 5b of the upright portion 5 positioned on the connecting portion 4 side of the container body 2, and the hanging portion 7b positioned on the connecting portion 4 side of the lid 3 has the container A convex portion 7 d that enters the concave portion 5 c when the lid body 3 is closed to the main body 2 and positions the lid body 3 with respect to the container main body 2 is formed. A concave portion may be formed in the hanging portion 7b of the lid 3 in place of the convex portion 7d, and a convex portion entering the concave portion may be formed in the outer wall portion 7b in place of the concave portion 5c. The concave portion 5c and the convex portion 7d may be formed in any number of one or more, and the formation positions are not particularly limited as long as the outer wall portion 5b and the hanging portion 7b of the standing portion 5 on the connecting portion 4 side.

  Further, the thickness of the connecting portion 4 is such that the outer wall portion 5b of the standing portion 5 of the container body 2 on both sides of the connecting portion 4, the flange portion 6, the jaw portion 7 c of the lid outer edge portion 7 of the lid body 3, It is set to 10 to 70%, preferably 20 to 60% of the thickness of 7b. If the upper limit is exceeded, the thin portion other than the connecting portion 4 may be deformed and only the connecting portion 4 may not be concentrated and bent, and the position of the lid 3 with respect to the container body 2 is difficult to determine accurately. On the other hand, when the value falls below the lower limit value, the connecting portion 4 is easily damaged. Further, the width of the flange portion 6 of the outer wall portion 5b and the jaw portion 7c of the lid outer edge portion 7 on both sides of the connecting portion 4 are each at least 0.2 mm, and the connecting portion 4 is substantially circular when the lid is closed. It is preferable to use a substantially semicircular hinge having a diameter of 4 mm or more so that the cross-section when bent into 2 mm has a diameter of 2 mm or more. When each of the dimensions is below the lower limit, when the connecting portion 4 is bent and closed, before the corner on the lid 3 side of the jaw portion 7c of the lid 3 comes into contact with the flange portion 6 of the container body 2. There are cases where the outer wall 5b is partially in contact and cannot be closed smoothly.

  Further, in the portion of the upright portion 5 of the container body 2 that is located at the end of the outer wall portion 5b opposite to the connecting portion 4, there are formed engaging portions 10, 10 consisting of a pair of left and right convex portions, Engagement portions 11 and 11 formed of a pair of left and right recesses are formed in a portion of the hanging portion 7b of the lid body 7b located at the end opposite to the connecting portion 4, and the lid body 3 is attached to the container body 2. When closed, the engaging portion 11 of the lid body 3 is detachably engaged with the engaging portion 10 of the container body 2 so that the lid body 3 is locked to the container body 2. . The container main body 2 and the lid 3 may have only one pair of engaging portions 10 and 11, and not only at the end opposite to the connecting portion 4 but also the positions of other outer wall portions 5 b and hanging portions 7 b. Can also be provided. Further, the engaging portion 10 on the container body 2 side may be a concave portion, and the engaging portion 11 on the lid 3 side may be a convex portion.

The container body 2 increases the height from the face plate portion 2a of the side wall portion 2b on the connecting portion 4 side, and decreases the height from the face plate portion 2a of the side wall portion 2b on the end side away from the connecting portion 4. And the upright part 5 of a mouth edge part is inclined with respect to the faceplate part 2a so that it may become low as it goes to the other end side from the said connection part 4 side. Therefore, the depth of the container body 2 is deeper as it is closer to the connecting part 4 and is shallower as it is farther from the connecting part 4 (see FIG. 5).
Moreover, the said cover 3 makes the height from the faceplate part 3a of the side wall part 3b by the side of the said connection part 4 low, and the height from the faceplate part 3a of the side wall part 3b of the edge part side away from the connection part 4 is made. The lid outer edge portion 7 of the mouth edge portion is inclined with respect to the face plate portion 3a so as to increase from the connecting portion 4 side toward the other end side. Therefore, the depth of the lid 3 is shallower as it is closer to the connecting part 4 and is deeper as it is farther from the connecting part 4 (see FIG. 5).

Accordingly, when the connecting portion 4 is bent toward the concave portion with respect to the container main body 2 and the lid body 3 is closed, the container main body 2 and the lid body 3 have a face plate of the container main body 2 as shown in FIG. In a side view in which the portion 2a side is placed on the installation surface S, both the face plate portions 2a and 3a of the container body 2 and the lid 3 are configured as a rectangular container 12 that is substantially parallel.
And the height h1 of the side wall part 2b in the edge part on the opposite side to the said connection part 4 of the said container main body 2 is the ratio with respect to the thickness h of the container 12 when the said container main body 2 is closed to the cover body 3, It is preferable to set it to 20 to 80%. In addition, the height h2 of the side wall 2b (2b1) at the end of the container body 2 on the connecting part 4 side is such that the ratio of the height h2 of the container 12 when the container body 2 is closed to the lid 3 is , 60 to 92% is preferable. If the height h2 of the side wall 2b (2b1) is less than the lower limit value, in order to erect the container 12 on the installation surface, it becomes necessary to overhang the erecting bottom wall 8a. Sometimes the standing bottom wall 8a may be undercut. When the upper limit is exceeded, the side portion formed by the side wall 2b1 and the face plate 2a on the connecting portion 4 side of the container body 2 becomes thin and is easily broken.

As shown in FIG. 6, the container 12 formed by closing the lid 3 on the container body 2 is bent and deformed with the end portion 2e on the face plate portion 2a side of the bottom wall 8a for standing, and the container 12 The protruding end portion 4a of the connecting portion 4 protruding outward functions as a grounding portion for standing the container, and the connecting portion as compared with the end portion 2e side of the face plate portion 2a side of the standing bottom wall 8a. 4 is inclined so that the side of 4 becomes higher, and it is erected on the installation surface S. In addition, when the container 12 is erected, the inclination angle α of the storage object support walls 9 and 9 with respect to the installation surface S is smaller than the inclination angle β of the standing bottom wall 8a with respect to the installation surface S. Set to
And, the sandwiching angle θ (see FIG. 5) formed by the bottom wall 8 for standing and the flange portion 6 in the standing portion 5 of the container body 2 is in a range of 80 to less than 90 °, so that the container can be stabilized. In order to stand upright, it is preferably as close to 90 ° as possible. The reason why the angle is less than 90 ° is that when the packaging container 1 is manufactured by vacuum forming a synthetic resin sheet, the sheet can be easily removed without undercutting.

  In the packaging container 1 having the above-described configuration, the container body 2 and the lid body 3 are separated by putting the stored item such as a rice ball inside the container body 2 and then bending it toward the concave portion around the connecting portion 4. When the connecting portion 4 and the opposite side are brought close to each other and finally the ends opposite to the connecting portion 4 are brought into contact with each other by applying a slightly stronger force, the connecting portion between the container body 2 and the lid 3 Since the engaging portions 10 and 11 provided at the end opposite to the side 4 are engaged with each other, the lid body is locked with respect to the container body so as not to be removed carelessly. When closing the lid 3 to the container body 2, when the lid 3 approaches the container body 2, the recess 5 c provided on the outer wall 5 b of the upright portion 5 on the connecting portion 4 side of the container body 2 is The convex part 7d provided in the hanging part 7b of the lid outer edge part 7 on the connecting part 4 side of the lid 4 enters, and positioning in the longitudinal direction (vertical direction in FIG. 1) of the connecting part 4 of the lid 3 is performed. Therefore, the position of the end portion on the opposite side of the connecting portion 4 of the lid body 3 with respect to the end portion on the opposite side of the connecting portion 4 of the container body 2 is naturally determined correctly, and the engaging portion 10 of the container body 2 and the lid body 3 is determined. , 11 can be engaged smoothly and quickly.

  In the case where the container 12 in which the container M is put inside and the lid 3 is closed as described above is erected on the installation surface S, the bent portion of the connecting portion 4 as shown in FIG. The projecting end portion 4a is positioned on the front side (right side in FIG. 6) on the installation surface S and grounded, and the end portion 2e on the opposite side of the connecting portion 4 of the standing bottom wall 8a of the container body 2 is opposite ( 6 is placed on the left side in FIG. 6 and is grounded, with the lid 3 side positioned in front and the entire container 12 tilted to the opposite side. In this state, the stored matter M accommodated in the container 12 has its lower end supported substantially horizontally (substantially parallel to the installation surface S) by the inner surfaces of the stored item support walls 9 and 9, and the lower end. The portions on both ends on the opposite side are supplementarily supported by the inclined surfaces 2c and 2c on both ends of the face plate portion 2a on the connecting portion 4 side. As described above, the container 12 is self-supporting by being slightly inclined toward the container body 2 side, and therefore has a feature that the contents are easier to see and look through the lid than the container that is vertically self-supporting.

Thereby, the container M is supported in the four corners at its lower ends and is erected in a stable state in the container 12, and the lower end thereof is substantially parallel to the installation surface S, so that the container 12 is inclined. In spite of the fact that the container 12 is in an upright state, the center of gravity of the contents M acts substantially perpendicularly to the installation surface S, and the container M is toppled by the contents M. Does not work. For this reason, according to the packaging container 1 in which the container body 2 and the lid body 3 are continuously and integrally formed via the connecting portion 4, the container 12 is erected on the installation surface S in an extremely stable state. be able to.
It should be noted that moisture in the air contained in the container 12 (moisture evaporated from the contents or moisture in the outside air contained in the container is cooled and condensed when the container 12 is erected and displayed. Even when dripping on the lower part of the container 12, the bottom wall 8a for standing is located at a position lower than the support walls 9 and 9, so that the moisture enters the bottom wall 8a for standing, The contents M supported by the contents collection support walls 9 and 9 are not wetted.

It is the top view which showed the packaging container which concerns on one embodiment of this invention in the state which opened the cover body. It is the longitudinal cross-sectional view which similarly showed the cover body in the open state. FIG. 3 is a cross-sectional view taken along the line II in FIG. 2. It is an enlarged view of the A section of FIG. It is the side view which showed the packaging container which concerns on one embodiment of this invention in the state which closed the lid body and put it sideways with the container main body. It is the side view shown in the state which stood up with the cover body closed similarly. It is the front view similarly shown in the state which closed the lid and stood up.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging container 2 Container main body 2a, 3a Face plate part 2b Side wall part 2c Inclined surface 3 Lid body 4 Connection part 5 Standing part 5b Outer wall part 6 Flange part 7 Lid outer edge part 7b Vertical part 8 Standing rib 8a Standing bottom wall 9 Containment Support Wall 10, 11 Engagement Section 12 Container

Claims (7)

A container main body, a lid that is closed to the container main body, and a connecting portion that functions as a hinge that is connected to the container main body and the lid so as to be openable and closable by being bent and deformed, are integrally formed. In a state where the lid body is closed to the container body, the packaging container made of resin that can be erected with the side surface on the connecting portion side down,
Of the side wall portion provided around the face plate portion of the container main body, the portion that is connected to the connecting portion, the stored item support wall on which the stored item is placed when the container is erected, and the connecting portion side to the face plate portion side. And a standing rib having a bottom wall for standing that is inclined with respect to the stored article support wall so as to protrude to the outside of the container body from the stored article support wall according to
When the lid is closed to the container body, the end of the standing bottom wall on the face plate part side and the connecting part that is deformed so as to be bent and protrudes to the outside of the container are used for container standing. Functioning as a grounding part, can be erected and inclined so that the side of the connecting part is higher than the side of the face plate part side end of the bottom wall for standing.
In addition, the packaging container is characterized in that, when the container is erected, the stored object support wall has a smaller inclination angle with respect to the installation surface for container installation than the bottom wall for erection.   The packaging container according to claim 1, wherein the storage support walls are formed on both sides of the standing bottom wall. A flange portion is provided on an upright portion having an inverted U-shaped cross section erected on the mouth edge portion of the container body, and the mouth edge portion of the lid body has, in a closed state, the rise portion of the container body. A stepped portion that abuts on the upper surface, a hanging portion that is bent so as to contact the outer wall portion of the upright portion continuously from the stepped portion, and projects so as to protrude from the tip of the hanging portion to the outside of the lid. A lid outer edge composed of the jaw is formed,
The container main body and the lid are disposed at portions of the outer wall portion of the standing portion of the container main body and the hanging portion of the lid body that are located at the ends of the container main body and the lid body opposite to the connecting portion. The packaging container according to claim 1 or 2, wherein an engaging portion is formed to engage with and disengage from the container body when the body is closed. One of the outer wall portion of the standing portion on the connecting portion side of the container body and the hanging portion on the connecting portion side of the lid is formed on the other of the outer wall portion and the hanging portion of the standing portion. A concave part into which the convex part enters is formed,
4. The lid body is positioned with respect to the container main body when the convex portion enters the concave portion when the lid body is closed to the container main body. Packaging containers. The container body is formed such that the side closer to the connection part is deeper and the depth is further away from the connection part,
5. The lid according to claim 1, wherein the lid is formed so that the depth is closer to the side closer to the connection part, and the depth is deeper as it is farther from the connection part. Packaging container.   The height of the side wall at the end of the container body opposite to the connecting portion is 20 to 80% of the total container thickness when the lid is closed to the container body. The packaging container according to claim 5. The height of the side wall at the end of the container body on the side of the connecting portion is such that the ratio of the height of the entire container when the lid is closed to the container body is 60 to 92%. The packaging container according to claim 5.

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