JP2005088920A - Folding container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding container which is capable of protecting a stored article by making the container internal surface into a smooth surface with an upper portion opened, easily taking out the article, easily folded and assembled, and has a sufficient strength in the assembly condition. <P>SOLUTION: The folding container 10 of a hexahedron structure comprises an upper frame 11, a bottom plate 12, a pair of side plates 14 and a gate plate 13. An upper portion of the gate plate 13 and upper portions of the side plates are connected to the upper frame 11 by connection parts 13a and 14a in a readiness to turn inward of the container. In the assembly condition, both side edge parts of the gate plate 13 are abutted on both inner end parts of the side plates 14, and inner surfaces of each side plate 14 and the gate plate 13 form inclined surfaces which are outwardly and upwardly inclined. A protruded part 21 abutted on an upper surface of the bottom plate 12 at the outer position of the container from the perpendicular V from the connection part 13a to the upper frame when the gate plate 13 is erected is protruded from a lower part of the gate plate 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a folding container, and more particularly to a folding container having a structure suitable for storing a liquid or gel-like article filled in a soft article or a film bag.

  Conventionally, as a folding container, a pair of upper and lower side plates that are pivotally attached to the upper frame and the bottom plate, and are connected to the upper frame and the bottom plate so as to be bent inward at the connecting portion. And a tilt plate attached to the upper frame so as to be rotatable (see, for example, Patent Document 1).

In such a folded container, the upper frame is lifted upward in a folded state, the connecting portions of both side plates are extended, and then the both side plates are placed in an upright state between the two side plates. On the contrary, after both the tilting plates are rotated inward with respect to the upper frame, the connecting portions of both side plates can be folded inward.
Japanese Patent Publication No. 7-5133

  However, when a load is applied from above the container in a state in which the conventional folded container is assembled and accommodated, the connecting portion of the side plate is bent inward or outward of the container. Therefore, when the stored item is a liquid or gel-like product filled in a film bag or the like, for example, soy sauce or oil, those that solidify at room temperature to low temperature, for example, margarine, butter, chocolate, etc. When the container is stored and transported, there is a risk that the stored items may be deformed due to the bending of the side plate, and it becomes difficult to take out from the container if it is solidified in the stored state. . Further, depending on the state of the connecting portion, an article having a soft outer surface may be damaged. For this reason, the articles as described above are stored in a plastic or cardboard integrated storage container, but there is a big problem in the processing of the storage container after the article is taken out.

  Therefore, the present invention can protect the stored articles by making the container inner surface a smooth surface whose upper side is expanded, and can easily take out the articles, and can be easily folded and assembled, An object of the present invention is to provide a folding container with sufficient strength in an assembled state.

  In order to achieve the above object, a folding container according to the present invention comprises a rectangular upper frame and a bottom plate facing each other, a pair of side plates and a pair of doors closing each of the top and bottom opposing sides of the top frame and the bottom plate. A plate, and an upper portion of the side plate and an upper portion of the tilt plate are connected to the upper frame in a state where the upper portion of the side plate can be rotated inside the container by a connecting portion. A folding container having a hexahedron structure in which both side edges of the plate are in contact with each other and the inner surfaces of the side plates and the tilt plate are inclined to the outside toward the upper side. A protruding portion that abuts on the upper surface of the bottom plate is provided at a position outside the container from a perpendicular line from the connecting portion with the upper frame when the plate is erected.

  According to the folding container of the present invention, the container inner surface is made into a smooth surface with the upper side expanded, so that the stored article is a liquid or gel-like material filled in a film bag or the like, or these are normal temperature to low temperature. Even in the case of those that solidify, it is possible to protect them and to easily take out articles. Even when a load is applied from above, the protruding plate positioned on the outside of the container from the perpendicular from the connecting portion prevents the tilt plate from rotating and falling down inside the container, so that the assembled containers are stacked in multiple stages. However, it is possible to reliably prevent the collapse of the cargo.

  FIG. 1 shows an example of a folding container according to the present invention. FIG. 1 is a sectional front view of a main part showing the folded container in an assembled state, and FIG. 2 is a main part showing a state in which the folded containers are also assembled. 3 is a perspective view of the folded container in an assembled state, FIG. 4 is a partial sectional front view of the folded container in an assembled state, FIG. 5 is a sectional side view of the folded container in an assembled state, and FIG. 6 is a folded state. It is a cross-sectional front view of the folding container which shows.

  The folding container 10 includes a top frame 11 and a bottom plate 12 that are rectangular in plan view, a pair of tilt plates 13 that are rotatably provided on the opposing short sides of the top frame 11, and the long sides of the top frame 11. A folding container having a hexahedron structure having a pair of side plates 14 that are rotatably connected to the sides, and the tilt plate 13 is a plurality of connecting portions 13 a with respect to the short side of the upper frame 11, and The upper portion is connected to the long side of the upper frame 11 by three connecting portions 14a in the present embodiment, and is respectively connected to the inside of the container so as to be pivotable. Between the outer surfaces, hinge plates 15 for connecting the bottom plate 12 and the side plates 14 are provided at three locations.

  The hinge plate 15 is engaged with a hinge pin 16 provided at the lower end portion in a hinge hole 17 provided at an edge portion of the bottom plate 12 so as to be rotatable inside the container. A hinge groove 19 provided at the upper end of the hinge plate 15 is engaged with a horizontal support shaft 18 provided on the outer surface of the side plate 14 in a rotatable state.

  3 to 5, when the lower part of the both side plates 13 is turned inward and then the lower part of the side plate 14 is turned inward, the upper part of the hinge plate 15 becomes the container. The side plate 14 and the hinge plate 15 are bent so that the side plate 14 and the hinge plate 15 are bent and enter the inside of the container. As shown in FIG. It will be in the state folded between. In this folded state, the upper frame 11 is lifted upward so that the side plates 14 and the hinge plates 15 are stretched so that the side plates 14 are raised, and then the two side plates 14 are rotated to stand between the side plates 14. As shown in FIG. 5, the tilt plate 13 and the side plate 14 are substantially upright, and the upper and lower sides of the upper frame 11 and the bottom plate 12 are closed by the tilt plate 13 and the side plate 14 respectively. Can be assembled into a hexahedral box shape. In this assembled state, both side edge portions of the tilt plate 13 are in contact with both end portions of the inner surfaces of the both side plates 14, so that the tilt plate 13 does not press the side plate 14 from the inner side and the side plate 14 does not rotate inward. It will be in the state kept in.

  In this folding container, the inner surface of the container in the assembled state is surrounded by the four surfaces of the tilt plate 13 and the side plate 14 made of a single plate, and there is no connecting portion of the side plate like the conventional folding container on the inner surface side of the container. Therefore, the inner surface of the container can be a smooth surface. Further, both side edges of the tilt plate 13 are formed in an inverted trapezoidal shape whose bottom is narrowed, and the position of the connecting portion 13a and the connecting portion 14a and the position of the side plate 14 and the lower end portion of the tilt plate 13 at the time of assembly, By forming the inner surfaces of the side plates 14 and the tilt plate 13 so as to be inclined obliquely outward, the container inner surface shape formed by the tilt plate 13 and the side plate 18 at the time of assembly is expanded upward. It has a quadrangular pyramid shape.

  Thus, by making the container inner surface a smooth surface and further making it a quadrangular pyramid shape with an enlarged top, the articles stored in the container are not deformed or damaged, and the stored articles are protected. In addition, even when a liquid or gel filled in a film bag or the like has solidified during storage, it can be easily pulled out above the container in a solidified state, and the film bag is torn. It will not be. Moreover, since the load from the upper part at the time of multi-stage stacking can be received by both the tilt plate 13 and the side plate 14, the load strength can be greatly improved as compared with the conventional case where only the tilt plate is received.

  As shown in FIGS. 1 and 2, at the lower part of the tilt plate 13, when the tilt plate 13 is erected, the vertical position V from the connecting portion 13a to the upper frame 11 is positioned outside the container. A projecting portion 21 that abuts the upper surface of the bottom plate 12 is provided. That is, when a load is applied to the folded container 10 in the assembled state from above, for example, when the folded containers 10 are stacked, the bottom plate 12 receives the load applied to the upper frame 11 from the connecting portion 13a via the tilt plate 13. However, at this time, if the contact portion of the lower plate 13 with the bottom plate 12 is located inside the container with respect to the vertical line V from the connecting portion 13a, the tilt plate 13 rotates inside the container. Depending on the magnitude of the load, the lower part of the tilt plate 13 may turn inward due to vibration or the like, and the hexahedron shape in the assembled state may be deformed to cause load collapse.

  On the other hand, the protruding portion 21 as described above is provided at the lower portion of the tilt plate 13 and is formed so as to receive a load at a position outside the container from the vertical line V from the connecting portion 13a. As a result, a force in a direction rotating in the vertical direction or outside the container acts, so that the lower portion of the tilt plate 13 can be prevented from rotating inward, and the side plate 14 held by both side edges of the tilt plate 13 is also used. Since the tilting plate 13 restricts the rotation in the container inner direction, the folded container 10 in the assembled state can be held in a hexahedral shape to reliably prevent the occurrence of load collapse.

  Further, the outer edge 12a of the bottom plate 12 protrudes outward from the leg 12b so that the folding containers 10 can be stacked in a stable state, and the upper frame so that the leg 12b is fitted to the inner periphery of the upper frame 11. 1 and the bottom plate 12, as shown in FIG. 1, in the lowermost container, the outer side of the outer edge portion 12a is slightly outside due to the load that the protruding portion 21 of the tilt plate 13 contacts the upper surface of the outer edge portion 12a. Since it will be in the state inclined downward, it can prevent more reliably that the protrusion part 21 slips on the upper surface of a baseplate, and moves inside a container.

  In this embodiment, the example in which the hinge plate 15 is provided at the lower part of the side plate 14 is shown. However, the shape and installation position of such a hinge component are arbitrary, and are independent from the tilt plate 13 and the side plate 14. A pair of upper and lower hinge plates can be provided along these outer surfaces. Further, a lid can be provided on the upper frame portion.

  The folding container of the present invention is optimal for storing and transporting margarine, butter, chocolate, etc., which are solidified at room temperature to low temperature, in a state of filling a film bag or the like.

It is a cross-sectional front view of the principal part which shows the folding container of an assembly state. It is a cross-sectional front view of the principal part which shows the state which piled up the folding container of an assembly state. It is a perspective view of the folding container of an assembly state. It is a partial cross section front view of the folding container of an assembly state. It is a cross-sectional side view of the folding container of an assembly state. It is a section front view of the folding container which shows a folded state.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Folding container, 11 ... Upper frame, 12 ... Bottom plate, 13 ... Elevation plate, 13a ... Connection part, 14 ... Side plate, 14a ... Connection part, 15 ... Hinge plate, 16 ... Hinge pin, 17 ... Hinge hole, 18 ... Support Axis, 19 ... hinge groove, 21 ... protruding part, V ... perpendicular from connecting part 13a

Claims (1)

  And a pair of side plates and a pair of side plates that respectively close the two sides facing the top and bottom sides of the top and bottom plates. The upper part is connected to the upper frame in a state that it can be rotated inside the container by the connecting part, and in the assembled state, both side edges of the tilt plate abut both end portions of the inner surface of the side plate, and each side plate and In a folding container having a hexahedron structure formed so that the inner surface of the tilt plate has an inclined surface that is inclined outwardly upward, a connecting portion with the upper frame when the tilt plate is erected at the lower portion of the tilt plate A folding container, characterized in that a projecting portion that abuts on the upper surface of the bottom plate is provided at a position outside the container from the vertical line.

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