JPH043950Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a connecting box that stores, transports and stores items in a connected state and can be divided as needed.

[Conventional technology]

Conventionally, as shown in FIGS. 5 to 7, this type of connection box has been manufactured by the Utility Model Publication Co., Ltd.
There is one described in Publication No. 49704. This connection box is
A bottom wall 33 extending in opposite directions is connected to each lower edge of a double intermediate wall 32 having a connecting portion 31 at the upper edge, and each bottom wall 33 has a side wall 34 facing the intermediate wall at a side edge. 35 are connected to the outer end walls at both ends, an inner end wall 36 is connected to the end edge of each outer end wall 35, and folding pieces 37 are arranged symmetrically at one end of each intermediate wall 32.
In addition, a horizontally long folding piece 38 is provided at the other end, and the part folded in the opposite direction from the middle is located at the connecting part of the box, respectively, and the outer end wall 35 and the inner end are doubled at both ends of each side wall 34. Folding pieces 39 are provided to protrude between the walls 36, respectively.

Note that 40 is a partition frame which is a separate member.

The feature of this connection box is that when assembling it, the 6th
As shown in the figure, the horizontally elongated folding piece 38 that has been folded inward and engaged with the abutting folding pieces 39 is folded halfway in the opposite direction and positioned at the connecting part of the box body, and each folding piece 37, 39 At the same time, by being held by the outer end wall 35 and the inner end wall 36, the legs of both boxes are prevented from opening.

[Problem that the invention attempts to solve]

However, in this known connecting box, the connected state of each unit box cannot be maintained unless the upper edges of the overlapping side walls are connected, and the structure is such that this upper edge is broken, making it difficult to connect the unit boxes. There was a drawback that the upper edge of the overlapping side wall had to be cut when making it, which was time-consuming. Furthermore, since the folding piece 38 is folded back, the portion spanning both bookcases is short, resulting in a problem of poor locking performance.

This is particularly noticeable when the depth of the box is shallow, and even if you try to make the folding piece 38 longer, as you can see from the development view shown in Figure 7, only this folding piece can be extended horizontally. There was a problem in that a large amount of wasteful cutting loss occurred when the material was made to protrude.

[Means for solving problems]

In order to solve the above-mentioned problems, this invention provides side walls that stand up on both sides of the bottom wall, provides folding pieces at both ends of each side wall, and creates outer end walls that stand up on both ends of the bottom wall. and an inner end wall that is bent from the upper edge of each outer end wall and folded back inside the outer end wall, and a connecting plate having retaining pieces connected to both ends of the joint. A plurality of unit boxes are arranged and abutted with side plates, and a joint portion is overlapped on the outside of each folding piece that is connected to the abutting side wall, and a retaining piece is bent so as to wrap around the edge of the folding piece, A folding piece and a connecting piece are held between an outer end wall and an inner end wall.

[Effect]

This design uses a connecting plate, which is a separate member from the unit box, with retaining pieces provided at both ends of the joint to connect the unit boxes, and the ends of the folding pieces are wrapped around the retaining pieces, ensuring a secure connection. The state is obtained. Furthermore, when dividing into unit boxes, only the connecting plates need to be cut.

〔Example〕

1 to 4 show examples of this invention. This connecting box is made by connecting two tray-shaped unit boxes A with two connecting plates B and covering them with one lid plate C. Each unit box A and connecting plate B is connected with one connecting plate B. They are formed from a unit box blank a and a connecting plate blank b (see FIG. 3), which are punched out of a thick plate D such as rectangular corrugated board.

The punched blank a for unit boxes has an outer wall 3 that is erected during assembly through vertical fold lines 2 on both side edges of a rectangular bottom wall 1, and two vertical fold lines 4 on the side edges of this outer wall 3.
The inner wall 5 which is bent downward and inward during assembly is connected through the outer wall 3 and the inner wall 5 during assembly.
A double-layered side wall is formed. In addition, an outer end wall 7 is provided at both ends of the bottom wall 1 to stand up during assembly through horizontal fold lines 6, and an outer end wall 7 is bent downward and inward during assembly via two horizontal fold lines 8 at the edges of this outer end wall 7. The outer wall 3 has slightly larger folding pieces 10 on both edges, and the inner wall 5 has slightly smaller folding pieces 11 protruding on both edges.

In addition, the inner end wall 9, which is folded in at the end to lock each wall during assembly, has small projections 12 protruding from both edge corners, and locking holes 18 formed by L-shaped cuts are provided at both ends of the inner wall 5. When the inner end wall 9 is folded in from the transverse fold line 8, the small protruding pieces 12 fit into the locking holes 18 of the inner wall 5, providing great locking performance.

The vertical fold line 4 is double-striped in order to easily fold the inner wall 5 inward, and the interval between the two horizontal fold lines 8 is such that the two folding pieces 10, 11 and the connecting plate B are connected to the outer end wall 7. It is wide because it is sandwiched between the inner end wall 9 and the inner end wall 9.

Each of the folding pieces 10 and 11 is approximately the same height as the inner end wall 9 and is formed long enough to leave a gap between the ends of the pieces that face each other from the left and right when assembled into the box.

Note that the folding piece may be provided only on the inner wall 5 or only on the outer wall 3, or the side wall itself may not have a double structure but may have a single side wall structure.

The connecting plate blank b has a rectangular joint portion 19.
A round hole 13 to facilitate tearing is bored in the center, and a perforated tear line 14 is cut in the longitudinal direction of the center, and two crease lines 15 are formed on both edges of the joint 19.
The retaining piece 16 is continuously provided through the blank, and is punched out from a space between two unit box punching blanks in a rectangular thick plate D, resulting in less cutting loss and is economical.

The connecting plate B has approximately the same height as the folding pieces 10 and 11, and the dimension between the tear line 14 and the fold line 15 (see FIG. 3) is approximately 1/2 of the total length in the lateral direction of the inner end wall 9.
It has the dimensions of

A perforation-like tear line 17 is carved in the center of the lid plate C, so that it can be used even after being divided into unit boxes.

When assembling the connecting box, as shown in FIG. The wall 5 is bent downward and inward, the folding pieces 10 and 11 are respectively bent inward, and then the two unit boxes A are overlapped on the outer wall 3 and the outer surface of the folding piece 10 is formed across both unit boxes. The joint part 19 of the connecting plate B is brought into contact with the joint part 19, and the retaining pieces 16 at both ends of the joint part are bent and inserted between the two folding pieces 10 and 11 (see Fig. 4), and finally the outer end wall 7 is The inner end wall 9 is bent downward and inward from the upper edge of the outer end wall 7 so as to hold the folded pieces 10, 11 and the connecting plate B in the overlapping state while the small projecting piece 12 locks the inner wall 5. The coupling box is fitted into the hole 18 and locked to maintain its shape.

Note that three or more unit boxes can also be connected in the same manner using a connecting plate.

This connecting box can be easily separated into a plurality of unit boxes by dividing the connecting plate B along the breaking line 14, and the lid plate C can also be divided along the breaking line 17 and used by covering each unit box.

〔effect〕

As listed above, the connection box according to this invention is
The side walls of each unit box were overlapped and a plurality of them were arranged, a separate connecting plate was inserted into the double gap between the adjacent end walls, and the retaining pieces at both ends of this connecting plate held the folding pieces connected to the side wall. Even if they are separate unit boxes, they can be reliably connected and can be easily divided into unit boxes. Furthermore, the assembly operation is very simple, and although the connecting plate is a separate member from the unit box, it is possible to utilize the empty space when cutting the unit box.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of this invention, Fig. 2 is an exploded perspective view of the same, Fig. 3 is a developed view of the same, Fig. 4 is a plan view with the connecting plate insertion part cut away, and Fig. 5 is a perspective view showing an embodiment of the invention. The figure is a perspective view showing a conventional example, and FIGS. 6 and 7 are an exploded perspective view and a developed view of essential parts of the conventional example. 3... Outer wall, 5... Inner wall, 7, 35... Outer end wall, 9, 36... Inner end wall, 10, 11, 37,
38, 39... folding piece, 14, 17... breaking line,
16... Retention piece, 19... Joint portion, A... Unit box, B... Connection plate, C... Lid plate, a, b... Removal blank.

Claims (1)

[Scope of utility model registration request] Upright side walls are provided on both edges of the bottom wall, folded pieces are provided at both ends of each side wall, and outer end walls are provided that stand up on both end edges of the bottom wall, and each outer end wall is bent from the upper edge to extend outward. It consists of a unit box with an inner end wall that is folded back inside the end wall, and a connecting plate with retaining pieces attached to both edges of the joint. The joint part of the connecting plate is overlapped with the outside of each folding piece connected to the adjacent side wall, and the retaining piece is bent so as to wrap around the edge of the folding piece, so that the folding piece and the connecting piece are connected to the outer end wall and the inner end. A connecting box held between walls.