JP2000335558A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a packaging box capable of hammock packaging in which the strength of a frame is increased, and the risk of the bottom touch is reduced by providing a box body part forming a rectangular parallelepiped box having a lid and a support body part to support an article to be packaged continuous thereto separate from a wall of the box on a blank formed of one sheet-like material. SOLUTION: In a box body part of a blank, side wall plates 3, 6' are extended from a rectangular bottom plate, and a lid plate 4 and a covering side wall plate 5 are successively and continuously provided on one side wall plate. On the other hand, in a support body part, one side of a lower horizontal support plate 102 is continuously provided on a side wall plate 3, and an upper horizontal support plate 104 is continuously provided on the other side of the lower horizontal support plate 102 through a return perpendicular support plate. After the box body part is set up by folding the box body part of the blank, the support body of the blank is folded and set up in the inside of the packaging box. That is the upper horizontal support plate 104 is folded through the return perpendicular support plate after the article is placed on the lower horizontal support plate 102, and the article is supported thereby.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box, and more particularly, to a packaging box which holds an article to be packaged away from a wall of the box to protect the article from impact applied to the box. Regarding the improvement.

[0002]

2. Description of the Related Art Conventional packing boxes and corner pads made of polystyrene foam and corner pads are used as packing boxes for transporting and storing pottery, glassware, electric and electronic equipment, precision mechanical parts, and other articles that are vulnerable to impact. So-called "hammock packaging" has been proposed and partially used in place of a packaging box that is filled with a mounted cushioning material or a loose cushioning material or one packed in a small bag. "Hammock packaging" is described in U.S. Pat. No. 4,852,743 and U.S. Pat.
No. 5,5071009 or JP-A-7-330
As disclosed in Japanese Patent No. 34, the entire package is placed in a box with a package made of elastic material stretched over a plate-like frame and sandwiched from above and below, and the package is placed inside the box. This is a package that is held in a space away from the box wall.

[0003] In this hammock packaging, since the material to be packaged is supported by a sheet of elastic material, the packaging target is of course limited to relatively small articles and light weight objects.
Nevertheless, problems often occur such that the packaged product may reach the bottom wall of the outer box and be damaged during transportation. The first measure is to increase the strength of the elastic sheet.However, due to the elasticity of the sheet, the resilience of the frame sandwiching the packaged object in the outer box becomes large, making it difficult to reduce it. One of the pair of upper and lower frames, especially the lower one, is crushed. In general, the frame is formed by punching out paperboard or the like, forming an opening, bending the four sides of the surface on which the elastic sheet is stretched in the opening, and determining the height from the bottom of the box by the height of the bent portion of the lower frame. The compressive strength in the surface direction of this portion supports the weight of the packaged object.

[0004] On the other hand, a packaging box made of cardboard or corrugated paper, having a rectangular parallelepiped outer shape and having a main body and a lid integrated with each other, is assembled with a blank shown in a development view in FIG. Things are used. That is, a pair of side wall plates (2, 3) are manufactured from one sheet-like material, and are formed on both sides in the sheet longitudinal direction (vertical direction in the drawing) from one of two opposing sides (11, 12) of the rectangular bottom plate (1). ) Are extended, and sandwiching pieces (21, 21 '; 31, 31') extending in the sheet lateral direction are attached to both ends of the side wall plates, and one of the side wall plates (2) further has a size corresponding to the bottom plate. The end of the lid plate (4) in the sheet longitudinal direction ends with the cover side wall plate (5), and the cover side wall plate (5)
Inserting pieces (51, 5) extending in the sheet lateral direction
1 ′) is attached, and the bottom plate (1) further includes a pair of outer end wall plates (6, 6 ′) and a pair of outer end wall plates (6, 6 ′) on both sides in the sheet lateral direction from the other opposite side (13, 14). Subsequently, the inner end wall plate (7, 7 ') further extends, and an engagement protrusion (8, 8') is provided at the end of the inner end wall plate, and the protrusion is fitted on the other two sides of the bottom plate. Fixing slit (9,
9 ') is a combination of the blanks provided.

[0005] When the blank is assembled, all broken lines (Fig.
1 is indicated by a fine dashed line), and is folded inward, and at that time, sandwiching pieces (21, 21 '; 31, 3)
1 ′) is sandwiched between the outer end wall plate (6, 6 ′) and the inner end wall plate (7, 7 ′) that is folded over the outer end wall plate (6, 6 ′). Fit into the slits (9, 9 ') to form a rectangular box. After storing the contents in this box, the lid (4) is closed and the side wall plate (5) is covered over the outside of the other side wall plate (3).
51 ′) is inserted into the gap formed between the outer end wall plate (6, 6 ′) and the inner end wall plate (7, 7 ′) outside the sandwiching pieces (21, 31). By fixing the lid, packaging can be performed.

[0006] Since this type of packaging box is assembled without using an adhesive or staples, it can be left as a blank manufactured by punching out sheet material until the final step of packaging, so that the packaging material can be transported and stored. The space-saving and assembled box has the advantage that it can be quite strong structurally, even if the material is not very thick. Although it is possible to perform hammock packaging inside this packaging box, the problems common to hammock packaging described above naturally remain.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems associated with hammock packaging, to make it easy to store an article to be packaged in a box at the time of packaging, and to increase the strength of the frame. SUMMARY OF THE INVENTION An object of the present invention is to provide a packaging box realized by combining a hammock packaging with reduced danger of bottoming with a known assembled packaging box having many advantages.

[0008]

According to the present invention, there is provided a packaging box in which a known assembling type packaging box and a hammock packaging part characterizing the present invention are combined as described below. It is. That is, a box portion (I) which is made of one sheet-like material and becomes a rectangular box having a lid, and a supporting portion which is connected to the box portion in the sheet longitudinal direction and supports the article to be separated from the wall of the box. Body part (II)
And a packaging box formed by assembling a blank composed of:

The box portion (I) of this blank is as already described with reference to FIG. 1, and is located in the longitudinal direction of the sheet from one of the two opposite sides (11, 12) of the rectangular bottom plate (1). A pair of side wall plates (2, 3) extend on both sides, and sandwiching pieces (21, 21 '; 31, 31') extending in the sheet lateral direction are attached to both ends of these side wall plates, respectively. ) Is further connected to a lid plate (4) having a size and shape corresponding to the bottom plate, and the end of the lid plate (4) in the sheet longitudinal direction ends with the cover side wall plate (5), and both ends of the cover side wall plate (5). The insertion piece (5
, 51 ') is attached, and the bottom plate (1) further includes a pair of outer end wall plates (6, 6') on both sides in the sheet lateral direction from the other opposite sides (13, 14). Then, the inner end wall plate (7, 7 ') further extends, and at the end of the inner end wall plate, there is an engagement projection (8, 8'), which is fitted on the other side of the bottom plate. Fixing slit (9,
9 ').

As shown in an exploded view in FIG. 2, one of the opposite sides of the lower horizontal support plate (102) is connected to the side wall plate (3) via a connecting plate (101). ), The vertical support plate (103) and the upper horizontal support plate (104) are folded in the longitudinal direction of the sheet from one of the sides, and extend in this order, and the end of the upper horizontal support plate is a terminal vertical support plate (105). And the middle vertical support plate (106, 10) in the sheet lateral direction from the other opposite side of the lower horizontal support plate.
6 ') through which the coupling plates (107, 107') extend so that their ends engage with each other.
8 '), horizontal vertical support plates (109, 109') extend on two sides of the upper horizontal support plate in the sheet lateral direction, and further, the lower horizontal support plate and the upper horizontal support plate have openings respectively. An elastic sheet (201, 202) is stretched over these openings. In FIG. 2, a fine broken line indicates an inner fold line as in FIG. 1, and a coarse dashed line indicates an outer fold line.

The method of assembling the packaging box of the present invention is as follows. First, the box body is assembled. The technique is the same as that of the known box body alone, and it is as described above, and it is assembled up to the state before the lid is put.

In the subsequent assembling of the support portion, both sides of the intermediate vertical support plate (106, 106 ') are folded outward, and the two connecting plates (107, 107') are positioned below the lower horizontal support plate. To engage the key-shaped portions of the engagement pieces (108, 108 '). FIG. 3 illustrates this stage. In this way, since the lower horizontal support plate enters the box, the article to be packaged is placed on the elastic sheet (201) of the opening, and
The folded vertical support plate (103) and the upper horizontal support plate (104) are bent, and the package is held down by the elastic sheet (202) of the upper horizontal support plate. After that, the terminal vertical support plate (105) and the horizontal vertical support plate (109, 10)
9 ') is folded, the upper horizontal support plate is placed in the box, and the lid is closed as described above, and the packaging is completed. The internal structure of the package is as shown in FIG.
I) indicates a packaged item.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The shape of the openings provided in the upper horizontal support plate (104) and the lower horizontal support plate (102) is arbitrary, and usually (especially in general-purpose packaging boxes)
The shape is symmetrical and congruent, such as a rounded rectangle as shown in the illustrated representative example, a square, a triangle, a polygon, a circle, an ellipse, and the like. However, depending on the shape of the packaged item,
The shape is not limited to a symmetrical shape and a congruent shape, but may be appropriate depending on the shape of the packaged object, such as a semicircle or an L-shape, and may be different at the top and bottom. Usually, the two horizontal support plates are provided so as to be substantially closely opposed to each other, but in some cases, it is appropriate to provide a slight distance. When it is close to or close to it, it is possible to securely hold the packaged object, and at a certain distance, the force applied to the elastic sheet can be prevented from becoming unduly strong.

In the assembled state, the lower horizontal support plate (10
2) Two coupling plates (108, 108 ') located below
May be configured to be in close contact with the bottom plate (1), or may be configured to have a slight distance from the bottom plate (1). The latter is suitable when another package, for example, an instruction for the package of the main body, is to be placed between the coupling plate and the bottom plate.

As the sheet material, a material selected from cardboard, corrugated cardboard, plastic sheet and foamed plastic sheet is suitable. The elastic sheet is made of polyurethane thermoplastic elastomer, polyamide, ethylene-
Sheets of material selected from vinyl acetate copolymers and single site catalyzed polyolefins are suitable. In addition, natural rubber or various synthetic rubbers, polyethylene, chlorinated polyethylene, fluorine resin, or the like can be used. Depending on the use, it is preferable to increase the strength of these materials by crosslinking or stretching by irradiation with an electron beam. The form is not limited to a sheet or a film, and may be a net. In the present invention, the term “sheet” is used to include a net.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A blank having a shape in which a box portion shown in FIG. 1 and a supporting portion shown in FIG. 2 are connected to each other. The outer dimensions of the box are 177 mm (vertical) × 133 mm (width) × 45 mm (height). A horizontal support plate having a substantially concentric shape with 127 mm in length and 90 mm in width and having rounded corners was punched out from E-flute double-faced corrugated paper and prepared. Cover the openings of the upper and lower horizontal support plates, and
m-ethylene-vinyl acetate copolymer film was adhered using an acrylic resin emulsion adhesive.

As shown in FIGS. 2 and 3, the box was assembled, and a hard disk drive for a built-in desktop personal computer was placed between upper and lower horizontal support plates to form a package. The package was unpacked after about 12 hours of truck transport, and the hard disk drive was removed and used.

[0018]

The packaging box of the present invention can be composed of a single blank, and as can be understood from the development, when blanks are manufactured by punching from a large sheet, only a small part is cut off. Therefore, the use yield of the material is high, so it is suitable for mass production and the cost is low. No adhesive or staples are needed to assemble the blank into a packaging box,
Since the flat blank may be left just before use, handling and transportation can be advantageously performed.

In use, first, the main body of the box is first assembled, the lower horizontal support plate is placed in the box, the article to be packaged is placed, and then the upper horizontal support is covered, and then the box is closed. The procedure prevents the upper horizontal support from jumping up due to the resilience of the elastic sheet and facilitates the packaging operation.

[Brief description of the drawings]

FIG. 1 is a development view showing the shape of a blank in a box portion that is a part of the packaging box of the present invention. The lower part of FIG. 1 is connected to the upper part of FIG.

FIG. 2 is an exploded view showing the shape of the blank of the support portion, which is connected to the blank of FIG. 1 and constitutes the blank of the packaging box of the present invention as a whole, which characterizes the present invention.

FIG. 3 is a perspective view showing a process of assembling the packaging box of the present invention.

FIG. 4 is a cross-sectional view of a package using the packaging box of the present invention.

[Explanation of symbols]

I Box part 1 Bottom plate 11, 12 Both sides 13, 14
The other two sides 2 One side wall plate 21, 21 ′ Inserting piece 3 The other side wall plate 31, 31 ′ Inserting piece 4 Cover plate 5 Covering side wall plate 51, 51 ′ Inserting piece 6, 6 ′ Outer end wall plate 7, 7 'Inner end wall plate 8,8' Engagement protrusion 9,9 'Slit II support part 101 Connecting plate 102 Lower horizontal support plate 103 Folded vertical support plate 104 Upper horizontal support plate 105 Terminal vertical support plate 106,106' Middle vertical Supporting plates 107, 107 'Coupling plates 108, 108' Coupling pieces 109, 109 'Horizontal vertical support plates 201, 202 Elastic sheet III Packaging

[Procedure amendment]

[Submission date] May 31, 1999 (1999.5.3
1)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 2

[Correction method] Change

[Correction contents]

FIG. 2

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

 ──────────────────────────────────────────────────続 き Continued from the front page F term (reference) 3E060 AA03 AB13 AB20 CC03 CC17 CC18 CC19 CC43 CC70 DA23 EA09 EA16 EA17 3E066 AA38 BA01 BA06 CA01 CA04 CB03 FA04 HA01 JA03 KA10 MA02 NA01 NA42 NA43 NA47 NA48

Claims (7)

[Claims] 1. A box part (I) made of one sheet-like material and serving as a rectangular box having a lid, and an article to be packaged is connected to the sheet in the longitudinal direction of the sheet and separated from a wall of the box. A packaging box comprising a supporting body part (II) for supporting, wherein the box body part (I) is formed on one side (11, 12) of the rectangular bottom plate (1) facing both sides in the sheet longitudinal direction. , A pair of side walls (2, 3) are extended, and sandwiching pieces (21,
21 ′; 31, 31 ′) adheres to one of the side wall plates (2).
Is further connected to a cover plate (4) having a size and a shape corresponding to the bottom plate, and the end of the cover plate (4) in the sheet longitudinal direction ends with the cover side wall plate (5), and is provided at both ends of the cover side wall plate (5). Is the insertion piece (51, 51 ') extending in the lateral direction of the sheet
The bottom plate (1) further includes a pair of outer end wall plates (6, 6 ') on both sides in the transverse direction of the sheet from the opposite opposite sides (13, 14), and furthermore, The inner end wall plate (7, 7 ') extends, and at the end of the inner end wall plate, there are engaging projections (8, 8'), and the other side of the bottom plate is provided with slits (9, 7 '). 9 ′), the support portion (II) has one of the opposite sides of the lower horizontal support plate (102) connected to the side wall plate (3) via the connecting plate (101); The vertical support plate (103) and the upper horizontal support plate (104) are folded in the sheet longitudinal direction from the other side to extend in this order, and the end of the upper horizontal support plate ends at the terminal vertical support plate (105), and the lower horizontal support plate (105) ends. From the other opposite side of the support plate in the sheet lateral direction, the intermediate vertical support plate (1
06, 106 ') through the coupling plate (107, 107')
Are extended so that their ends engage with each other.
8, 108 '), a horizontal vertical support plate (109, 109') extends on two sides of the upper horizontal support plate in the sheet lateral direction, and further, openings are provided in the lower horizontal support plate and the upper horizontal support plate, respectively. A packaging box comprising a blank, wherein elastic sheets (201, 202) are stretched over these openings. 2. The shape of the openings provided in the upper horizontal support plate (104) and the lower horizontal support plate (102) is substantially congruent, and the two horizontal support plates are substantially closely contacted or slightly apart from each other. 2. The packaging box according to claim 1, wherein the packaging boxes face each other. 3. The upper horizontal support plate (104) and the lower horizontal support plate (102) have different openings from each other in shape, and the two horizontal support plates face each other with a slight distance therebetween. Packaging box. 4. The two connecting plates (107, 107 ′)
2. The packaging box according to claim 1, wherein the coupling box is in close contact with the bottom plate when the coupling pieces are engaged. 5. The two connecting plates (107, 107 ′),
2. The packaging box according to claim 1, wherein the packaging piece is present at a distance from the bottom plate (1) when the coupling pieces (108, 108 ') are engaged. 6. The packaging box according to claim 1, wherein the sheet material is selected from cardboard, corrugated paper, plastic sheet and foamed plastic sheet. 7. An elastic sheet (201, 202) stretched over openings of the upper horizontal support plate (104) and the lower horizontal support plate (102) is made of polyurethane thermoplastic elastomer, polyamide, ethylene-vinyl acetate copolymer. A packaging box according to any one of claims 1 to 5, which is a sheet of a material selected from coalesced and single-site catalyzed polyolefins.