JPH0441065Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention is capable of stably storing items such as microcassette recorders, cameras, transistor radios, etc. under good buffer conditions, and also allows small items such as small items to be partitioned off from the inside of the box by a part of the side plate connected to the bottom plate. The present invention relates to an improved assembly packaging box that can be used as a storage section for earphones, batteries, etc., for example.

[Conventional technology]

A side plate is provided on each side of the bottom plate, a lid plate is provided on the upper side of one set of opposing side plates, and a top folding piece is provided on the upper side of the other set of side plates that are bendable. Assembling packaging boxes are known in the art (for example, Japanese Utility Model Application Publication No. 59-155972, Japanese Unexamined Patent Publication No. 59-1559
-Refer to Publication No. 176046). This known assembly packaging box has a structure in which foamed synthetic resin sheet molded products having a bulge formed on the inner surface of a paperboard are laminated with adhesive.

[Problem that the invention attempts to solve]

In the above-mentioned known assembly packaging box, accessories such as earphones and dry batteries are placed in desired positions on a mount for forming an assembly packaging box along with stored items such as a cassette recorder, camera, and radio, and then the mount is assembled into a box shape. and pack it. Therefore, it takes time and effort to handle these accessories, causing delays in the automatic packaging line.

[Means for Solving the Problems] The present invention was made in view of the above points, and its purpose is to provide a side panel that is attached to the final lid of an assembly box that stores items such as a radio. A storage chamber for parts is provided, and this storage chamber facilitates packaging. In other words, the present invention uses a composite sheet made by laminating a foamed synthetic resin sheet on the inner surface of paperboard as a base material for a box that can be assembled freely.While aiming to improve the cushioning properties of the box as a whole, it is also possible to use a composite sheet that is foldably connected to the bottom plate. The paperboard and foamed synthetic resin sheet, including the top folding piece attached to the upper side of the sideboard, can be separated without adhesion by applying a release agent to the paperboard surface in advance. An object of the present invention is to provide an improved assembly packaging box in which articles can be individually and neatly accommodated by forming side plate portions of the loose foamed synthetic resin sheets into storage recesses. Therefore, the above object of the present invention is to create a composite sheet made of paperboard with a foamed synthetic resin sheet adhesively laminated on the inner surface of the paperboard, and to provide a rectangular bottom plate necessary for assembling the box, and folds on each side of the bottom plate. side plates that are connected in a bendable manner; a cover plate that is bendably connected to the upper side of at least one pair of opposing side plates of these side plates; A box body is formed which has upper folding pieces arranged in a freely continuous manner, and at least one side plate to which the upper folding pieces of the box body are connected is made of paperboard and a foamed synthetic resin sheet, including the upper folding pieces. Let it go,
This is achieved by an assembly packaging box formed by forming a storage recess in the side plate portion of the free synthetic resin sheet that bulges toward the opposite side of the paperboard.

【Example】

Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1, 2, and 3, the box generally indicated by the symbol a is a foamed synthetic resin sheet such as a foamed polystyrene sheet or a foamed polyethylene sheet, which is attached to the inner surface of a paperboard 1 with an adhesive film 3 interposed therebetween. The box body a is provided with a buffer bulge 5 having an air chamber 4 and holding ribs 6 and 7 at predetermined locations, which will be described later. The box body a includes a rectangular bottom plate 11 and side plates 13 connected to each side of the bottom plate 11 via hinge parts 12.
16, lid plates 18 and 19 connected to the upper sides of side plates 13 and 15 of one set of these side plates facing each other via a hinge part 17, and side plates 14 and 16 of the other set facing each other. It includes top folding pieces 21 and 22 connected to the upper side via a hinge part 20, and corner folding pieces 24 to 27 connected to both left and right sides of the side plates 14 and 16 via a hinge part 23. When the box body a is assembled into a box shape, the lid plates 18 and 19 overlap, and the upper folding pieces 21 and 22 are inscribed in the inner lid plate 18, and the corner folding pieces 24 to
27 are inscribed in the side plates 13 and 15, respectively. Thus, a fitting hole 28a is formed in the upper surface folding piece 21 which is connected to the side plate 14, and a fitting hole 28a is formed in the corner folding pieces 26 and 27 which are connected to the side plate 16.
b are respectively provided, and when the box body a is assembled into a box shape, a fitting protrusion 29a that fits into the fitting hole 28a is provided, and a fitting protrusion 29a that fits into the lid plate 19, and a fitting protrusion that fits into the fitting hole 28b. 29b are provided to protrude from the side plates 13 and 15, respectively. Furthermore, an insert piece 31 that can be bent freely by a hinge part 30 is provided in a cut-out state at the center portion facing the boundary between the side plate 13 and the lid plate 18 that becomes inside when assembled. Insertion holes 32 are provided along the hinge portion 17 on both sides of the hinge portion 31 . On the other hand, an insertion piece 33 that is inserted into the insertion hole 32 is connected to the tip of the lid plate 19 that is on the outside during assembly via a hinge part 34, and a part on the hinge part 34 of the insertion piece 33 is placed on the lid plate 18 side. An insertion hole 35 into which an insertion piece 31 is inserted is provided so that the assembled state of the box body a is determined. In the illustrated embodiment, the buffer bulge 5 includes the bottom plate 11, the side plate 14, the upper folding piece 21 connected to the side plate 14, the cover plate 19 which becomes the outer side when the box body a is assembled, and Each corner folding piece 24-2
The holding protrusions 6 and 7 are provided on the bottom plate 11 adjacent to opposite edges of the transparent window 8 formed on the bottom plate 11. The window 8 is formed by stretching a transparent synthetic resin film over a window hole made on the bottom plate 11. In addition, the cushioning bulge 5, the holding protrusions 6, 7, and the fitting protrusions 29a, 29b are connected to the adhesive film 3 and the foamed synthetic resin sheet at the stage of laminating the foamed synthetic resin sheet 2 on the paperboard 1. It is formed by vacuum forming a laminate of 2 and 3 while the adhesive film 3 is melting (Utility Model No. 61).
-Refer to Publication No. 47610). In the box a having the above configuration, a side plate 14, a top folding piece 21 connected to the side plate 14,
The corner folding pieces 24 and 25 connected to the upper folding piece 21 are made of a paperboard 1 and a foamed synthetic resin sheet 2.
The foamed synthetic resin sheet 2 is left loose without adhering, and the part corresponding to the side plate 14 is bulged toward the opposite side of the paperboard 1, and this part is formed into the storage recess 40. Implement. The storage recess 40 can be formed using the same vacuum forming method as that used for forming the buffer bulge 5, and a rib 41 is provided on the side wall thereof. Therefore, in order to form a free part between the paperboard 1 and the foamed synthetic resin sheet 2, it is necessary to
A release layer may be provided on a predetermined portion of the upper part using a release agent such as silicone, and the foamed synthetic resin sheet 2 on which the adhesive film 3 is laminated may be melt-bonded onto the paperboard 1 and vacuum formed. , storage recess 40
When pulled by hand, the foamed synthetic resin sheet in the free area including the storage recess 40 is more easily peeled off than the paperboard due to the presence of the release agent. Note that the storage recess 40 can be formed in both the side walls 14 and 16 depending on the form of the box a, and can also be applied to an assembled packaging box that is not provided with the corner folding pieces 24 to 27. Of course. In the figure, 42 is a notch provided at the edge of the cover plate 18 that overlaps the upper folding piece 21 during assembly. It is. According to the above configuration, an article is placed on the bottom plate 11, the side plates 13, 15, and 16 are made to stand up, and the corner folding pieces 26, 27 face each other in one set of the side plates 1.
3, 15, and the top folding piece 22
Fold each horizontally. Next, after bending one cover plate 18 horizontally, bending the other cover plate 19 horizontally, stacking both cover plates 18 and 19 and inserting the insertion piece 33 into the insertion hole 32, and then inserting the insertion piece 33 into the insertion hole 32. 31 into the insertion hole 35, the box body a is assembled with the side plate 14 side unfolded. Next, small items such as dry batteries are stored in the storage recess 40, and the side plate 14 and the top folding piece 2 are
1 and corner folding pieces 24 and 25, and inserting the storage recess 40 into the box, packaging can be completed. In this case, the fitting protrusions 29a and 29b fit into the fitting holes 28a and 28b, and the assembled state of the box is stabilized.

[Effect of the idea]

The present invention is as described above, and the side plate to which the upper folding piece is connected is made to separate the paperboard and the foamed synthetic resin sheet including the upper folding piece, and the synthetic resin sheet of the side plate part is formed in the storage recess. So,
In the storage recess, the part of the paperboard facing the storage recess functions as a lid, and an independent storage chamber is formed by folding the top folding piece during assembly, making it ideal for storing items individually. It is convenient and
In addition, the inner layer made of a foamed synthetic resin sheet can further improve the cushioning properties of the box as a whole, and its practical value is extremely great.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a developed view, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, FIG. 3 is a cross-sectional view taken along line B-B in FIG. 1, and FIG. is a front sectional view when assembled. In the figure, 1 is paperboard, 2 is a foamed synthetic resin sheet, 1
1 is a bottom plate, 13 to 16 are side plates, 18 and 19 are lid plates, 21 and 22 are upper folding pieces, 40 is a storage recess, and a is a box body.

Claims (1)

[Scope of utility model registration request] It is made of a composite sheet in which a foamed synthetic resin sheet is glued and laminated on the inner surface of paperboard, and includes a rectangular bottom plate that is necessary for assembling the box, and side plates that are connected to each side of this bottom plate so that they can be bent freely. , a lid plate that is bendably connected to the upper side of at least one set of side plates facing each other among these side plates, and a top folding piece that is connected so as to be bendable to the upper side of the side plate of the other set of facing sides. At least one side plate to which the upper folding piece of the box body is connected releases the paperboard and the foamed synthetic resin sheet including the upper folding piece, and the released synthetic resin An assembly packaging box characterized in that the side plate portion of the sheet is formed into a storage recess that bulges toward the opposite side of the paperboard.