JP2006225005A - Assembly type returnable container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembly type returnable container which ensures the improved strength of a bottom plate and the improved strength of inner frame sides, and is capable of resisting to the weight of a stored object and repeated disassembly and assembly. <P>SOLUTION: The assembly type returnable container includes an upper lid, an inner frame, and a freely detachable bottom plate, firstly all of which are separate from one another. Secondly, the bottom plate comprises a bottom plate body and folding fittable flaps extending down from the four edges of the bottom plate body. Thirdly, an inner frame has a freely foldable tubular shape by connecting two inner-frame composing members by hinge members, each inner-frame composing member having side wall plates continuous with each other via a crease. Fourthly, a receiving-part composing flap is continuous with the lower end of a corresponding side wall plate, and a space defining flap is continuous with the leading end of the receiving-part composing flap. Each receiving-part composing flap is folded inside the corresponding side wall plate. Each space defining flap is folded in the direction of a space between the corresponding side wall plate and receiving-part composing flap. Each space defining flap is held on the internal face of the corresponding side wall plate so that a fitting space is defined inside the corresponding receiving-part composing flap and the corresponding side wall plate, thus forming a receiving part. Fifthly, fittable flaps are fitted in the fitting spaces of the corresponding receiving parts. Then, the bottom body is brought into contact with the four sides of the upper end of the receiving parts. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an improvement of a three-piece assembly box that is divided into three members: a top lid, a cylindrical foldable inner frame having an open top and bottom, and a removable bottom plate, and is particularly foldable. The present invention relates to an improvement of a three-piece assembly box having a feature in an inner frame and a removable bottom plate.

  The conventional box is generally a one-piece box with an upper lid, an inner frame, and a bottom plate integrated with each other, or a two-piece box with an inner frame and a bottom plate that are integrated with a separate upper lid. there were. However, in these conventional boxes, there is a problem that folding is not effective if importance is given to strength, and if folding is possible, the shape tends to collapse, and in particular, the strength of the bottom plate cannot be secured. Therefore, as shown in Patent Document 1, a three-piece assembly box that has been divided into three members: a top cover, a cylindrical foldable inner frame having an open top and a bottom, and a removable bottom plate has been developed. It was.

  However, in the means shown in Patent Document 1, the receiving portion (denoted as tongue piece in Patent Document 1) of the removable bottom plate formed in the inner lower part of the inner frame (indicated as Box body in Patent Document 1) is in a bent state. However, the strength of the portion cannot be increased, and there is a problem that it is difficult to withstand the weight of the stored item and multiple disassembly and assembly. Furthermore, the assembled box-like container described in Patent Document 1 has a problem in that the strength of the side surface of the inner frame cannot be increased, and deformation from the side surface occurs.

Japanese Patent No. 3313052

  The present invention secures the strength of the detachable bottom plate and its receiving portion, and further secures the strength of the side surface of the middle frame by adding the configuration of the second invention, thereby solving the above problems. The purpose of the present invention is to provide an assembly-type passing box that reduces the storage space before and after use and helps reduce transportation costs.

In order to solve the above problems, the first invention employs the following means.
First, it is assumed that the assembly type box is divided into an upper lid, a cylindrical foldable middle frame having an open top and bottom, and a removable bottom plate.
Secondly, the bottom plate is provided with a bottom plate body and a fitting piece that can be bent downward from the peripheral end of the bottom plate body.
Thirdly, the middle frame is formed into a foldable cylindrical shape by connecting two middle frame members, whose side wall plate portions are coupled at the bent portions, with hinge members fixed at diagonal positions.
Fourth, in order to constitute a receiving part for the fitting piece of the bottom plate, a receiving part constituting piece is connected to the lower end part of the side wall plate part and an empty part forming piece is provided at the tip thereof, and the receiving part constituting piece is arranged inside the side wall plate part. The hollow portion forming piece is bent between the side wall plate portion and the receiving portion constituting piece, the empty portion forming piece is held on the inner surface of the side wall plate portion, and the receiving portion constituting piece and the side wall plate portion are A fitting empty part is formed inside.
Fifth, it is characterized in that the bottom plate main body is brought into contact with the entire periphery of the upper end of the receiving portion and assembled by fitting the fitting piece of the bottom plate into the fitting empty portion of the receiving portion formed in the inner lower portion of the middle frame. Assume an assembly box.

  A second invention is an assembly-type box that adds to the above-mentioned first invention that a reinforcing folded piece is connected to the upper part of the side wall plate part, folded back to the outside of the side wall plate part, and fixed to the side wall plate part. is there.

  In the first invention, the receiving portion of the bottom plate fitting piece formed in the inner lower portion of the middle frame is provided with a receiving portion constituting piece at the lower end portion of the side wall plate portion and an empty portion forming piece at the tip thereof, and the receiving portion constituting piece Is bent toward the inside of the side wall plate part, the empty part forming piece is bent between the side wall plate part and the receiving part constituting piece, and the empty part forming piece is held on the inner side surface of the side wall plate part, Since the mating empty part is formed inside the component piece and the side wall plate part, it is possible not only to assemble the middle frame and the bottom plate reliably, but also to increase the strength of the middle frame part near the bottom plate and the receiving part. As a result, it became an assembly-type bin that can withstand the weight of the stored items and multiple disassembly and assembly.

  Further, the assembly type is characterized in that the bottom plate body is brought into contact with the entire periphery of the upper end of the receiving portion by assembling the fitting piece of the bottom plate into the fitting empty portion of the receiving portion formed in the inner lower portion of the inner frame. Because it was a box, it was possible to assemble the bottom plate firmly in the middle frame and to make it a bottom plate that could withstand the weight of the stored items.

  According to a second aspect of the present invention, there is provided an assembly-type passing box in which a reinforcing folded piece is connected to the upper portion of the side wall plate portion, folded back to the outside of the side wall plate portion, and fixed to the side wall plate portion. Therefore, the reinforcing folded piece at the upper part of the middle frame and the receiving part constituting piece and the empty part forming piece at the lower part of the middle frame are bent and fixed in opposite directions, and the strength of the side face of the middle frame has been successfully increased.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing an embodiment of an assembled box according to the present invention. The assembled box 1 includes a cylindrical foldable middle frame 2 having an open top and bottom, a detachable middle frame 2. It is a three-piece assembly box that is divided into three members, a bottom plate 3 and an upper lid 4.

  The assembly box 1 in the illustrated embodiment is a rectangular plane, and it is preferable to use a resin plate foam material except for the hinge member 23 described later, and reuse without deformation. The one with possible strength is used.

  The upper lid 4 is a plane quadrangular shape as shown in the plan view of FIG. 10 and the front view of FIG. 11, but is sized to fit the top of the middle frame 2 to close the upper opening of the middle frame 2. The shape is not particularly characteristic in the present invention.

  As shown in the plan view of FIG. 7 and the front view of FIG. 8, the bottom plate 3 includes a bottom plate body 30 having a rectangular shape that fits inside the middle frame 2 and two left and right end portions on each side of the bottom plate body 30. It consists of the fitting piece 31 formed in this. In the figure, reference numeral 32 denotes a reinforcing plate bonded for reinforcement, which has the same shape as the bottom plate main body 30.

  The fitting piece 31 is connected to the bottom plate body 30 so as to be bendable. As shown at least in FIGS. 8 and 9, the bottom plate body 30 needs to be bendable in a range from a horizontal state to a vertical state. In the embodiment, two fitting pieces 31 are formed at the left and right end portions of each side of the bottom plate main body 30, but may be one piece depending on the configuration of the empty portion forming pieces 29 of the middle frame 2. Further, the height of the fitting piece 31 is set to a height suitable for the receiving portion of the middle frame 2.

  As shown in FIG. 2, the middle frame 2 has two middle frame members 22 in which two side wall plates 20 are connected by a bent portion 21 near the center, as shown in the plan view of FIG. It is connected to a hinge member 23 fixed at a position and formed into a foldable cylindrical shape. 4 is a front view of the middle frame 2 showing a folded state, and FIG. 5 is a plan view thereof. In addition, when using the middle frame 2 as a box, it is opened and used as a cylindrical body of a plane quadrangle having upper and lower openings as shown in FIG.

  The hinge member 23 is made of a flexible material and absorbs the thickness of the receiving portion 25 when folded, so that one middle frame component 22 and the other middle frame component 22 are slightly separated as shown in FIG. Need to be connected.

  FIG. 2 is a front view of the middle frame constituting member 22, which is a horizontally long one in which two side wall plate portions 20 are connected in a horizontal direction by bent portions 21, and the side wall plate portion 20 is reinforced at its upper end portion. The folded piece 27 is provided with a receiving portion constituting piece 28 for constituting the receiving portion 25 of the fitting piece 31 of the bottom plate 3 at the lower end portion and an empty portion forming piece 29 at the tip thereof.

  The reinforcing folded piece 27 is formed to be slightly shorter than the lateral length of the side wall plate portion 20, folded back to the outside of the side wall plate portion 20, and brought into close contact with the side wall plate portion 20.

  The receiving portion constituting piece 28 is formed to have a lateral width slightly shorter than the width of the side wall plate portion 20, and an empty portion forming piece 29 narrower than the receiving portion constituting piece 28 is formed at the tip thereof. That is, the empty portion forming piece 29 has a length that allows the fitting empty portion 26 of the fitting piece 31 of the bottom plate 3 to be formed on both sides of the receiving portion constituting piece 28.

  The receiving portion constituting piece 28 is bent inside the side wall plate portion 20, and thereafter, the empty portion forming piece 29 is bent between the side wall plate portion 20 and the receiving portion constituting piece 28, and the empty portion forming piece 29 is formed. Is held on the inner surface of the side wall plate portion 20. Of course, in order to increase the strength of this portion, it is preferable to adhere and fix the empty portion forming piece 29 to the side wall plate portion 2 in close contact. In this way, the fitting empty portion 26 is formed inside the receiving portion constituting piece 28 and the side wall plate portion 20.

  In addition, the fitting piece 31 of the bottom plate 3 is inserted and fitted into the fitting empty portion 26 of the receiving portion 25 formed in the inner lower portion of the middle frame 2, and the bottom plate main body 30 is brought into contact with the entire upper end of the receiving portion 25. Then, the middle frame 2 and the bottom plate 3 are assembled.

Exploded perspective view of an assembly type box according to the present embodiment Front view of middle frame component in the embodiment Perspective view of the middle frame component showing the folded state Front view showing the inner frame in the folded state Plan view The same enlarged plan view Top view of the bottom plate Front view Front view with the fitting piece folded Top view of the top lid Front view

Explanation of symbols

1. . . . . . Assembly type box 1. . . . . . Middle frame . . . . . Bottom plate 4. . . . . . Upper lid 20. . . . . Side wall plate part 21. . . . . Bent part 22. . . . . Middle frame component 23. . . . . Hinge member 25. . . . . Receiving part 26. . . . . Fitting empty part 27. . . . . Reinforced folded piece 28. . . . . Receiving part constituting piece 29. . . . . Empty part forming piece 30. . . . . Bottom plate body 31. . . . . Fitting piece 32. . . . . Reinforcing plate

Claims (2)

In the assembly type box that is divided into an upper lid, a cylindrical foldable middle frame with an open top and bottom, and a removable bottom plate,
Assume that the bottom plate is connected with a fitting piece that can be bent downward from the bottom end of the bottom plate body and the bottom plate body,
The middle frame is formed into a foldable cylindrical shape by connecting two middle frame constituent members whose side wall plate portions are coupled by a bent portion with hinge members fixed to diagonal positions,
In order to configure the receiving portion of the fitting piece of the bottom plate, the receiving portion constituting piece and the empty portion forming piece are continuously provided at the lower end portion of the side wall plate portion, and the receiving portion constituting piece is bent inside the side wall plate portion, The void forming piece is bent between the side wall plate portion and the receiving portion constituting piece, the empty portion forming piece is held on the inner surface of the side wall plate portion, and is fitted inside the receiving portion constituting piece and the side wall plate portion. Forming a space,
An assembly-type passing box characterized in that a bottom plate fitting piece is fitted into a fitting empty portion of a receiving portion formed in an inner lower portion of an inner frame, and a bottom plate body is brought into contact with the entire upper end of the receiving portion for assembly. .
  The assembly type box according to claim 1, wherein a reinforcing folded piece is connected to the upper part of the side wall plate part, folded back to the outside of the side wall plate part, and fixed to the side wall plate part.

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