JP2612422B2 - Corrugated cardboard box and base plate for forming the box body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable corrugated cardboard box and a base plate for forming a main body of the cardboard box.

[0002]

2. Description of the Related Art There have been known various cardboard boxes which are foldable so as not to be bulky during storage or return. However, in the conventional case, all four sides of a bottom plate portion are so folded as to be easy to fold. However, even if the reinforcing bottom plate is attached to the inner surface of the bottom plate portion, sufficient strength cannot be obtained even if the reinforcing bottom plate is attached to the inner surface of the bottom plate portion. Therefore, there is a strong demand for the development of a corrugated cardboard box having sufficient strength to be easily folded.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a corrugated cardboard box which can be easily folded in response to the above-mentioned demands, returned and stored without bulk, and has sufficient strength. To provide.

[0004]

According to the present invention, which solves the above-mentioned problems, a reinforcing plate portion is folded over an upper edge via a width plate portion.
The front and rear side plate parts and the inside that will be the main plate of the left and right side plate parts
The plate part is bent upright on the four sides of the bottom plate part, and each inner plate part
With the formation of an outer folding line for folding in the vertical direction
On the outer surface of the front and rear side plate
Place the outer plate component piece continuously connected from both sides
On the bottom plate portion, a top line is located on a line connecting the outer fold lines, and a ridge-shaped fold line in which ridge lines reach the four corners from both ends of the top line is attached while leaving a gap where the outer fold line is located. A linear notch connecting both ends of the top line and the outer folding line is provided so that the top of the descending ridge section sandwiched between the two ridge lines is three
And Kayoibako body cardboard formed in the notch of the corner shape, Sowaseru to the bottom plate portion is charged inside the Kayoibako body wherein
It is composed of a separate reinforcing bottom plate from the pass box body, and the pass box body is held in the expanded state by the reinforcing bottom plate during use,
When not in use, take out the reinforcing bottom plate from the box body and fold the two side plates from the outer fold line, and the body frame will be folded into a flat state with its front and rear plates close together, and the bottom plate will be trapezoidal from the fold line And a bottom plate portion, which is a base plate from which such a cardboard box can be easily obtained. long hole is set for and manual insertion at about 1/2 the width of the longitudinal width of consecutively provided a side plate portion of the front and rear through the inner fold line around edge to the bottom plate portion via an inner fold line on both sides of the
In addition to connecting the outer plate parts,
Reinforcement plates are connected to each other via a narrow width plate between them
On the other hand, left and right inner plates are connected to the left and right edges of the bottom plate via inset lines, and the bottom plate has two front and rear sides.
A top line is located on the branch line, and a ridge-shaped folding line is formed in which the ridge lines reach the four corners from both ends of the top line, and a linear cut is made from both ends of the top line to the base ends of the left and right inner plate portions. The top of the descending ridge that is sandwiched between two ridges
Are formed in triangular cutouts, and a base plate for forming a pass box body of a pass box made of cardboard.

[0005]

In such a cardboard box, the packaged goods are stored in an internal storage space and used in the same manner as a normal box. Then, when not in use, remove the reinforcing bottom plate from the box body and fold the left and right side plates from the outer fold line, and the body frame will be folded with its front and rear plates close together and the bottom plate will be folded at the same time Since it is folded into a more trapezoidal shape and becomes a flat state stored between the front and rear plates, it can be stored and transported without being bulky. If you want to use it again from this folded state, put your fingers between the upper parts of the front and rear plate parts, apply force in the direction to increase the distance between them, and extend the left and right side plate parts that are folded in half. For example, the bottom plate portion that has been folded into a trapezoidal shape from the fold line is also in an expanded state. The frame portion and the bottom plate portion are prevented from being folded, and in this state, the packaged product is stored in the internal storage space, and then the packaged product may be used in the same manner as a normal box.

[0006] In the above-mentioned base plate for forming the main body of the corrugated cardboard box, the front and rear side plate portions and the left and right inner plate portions are respectively bent upright from the inward folding curve, and the front and rear side plates are bent. A pass-through box having the above-described constitutional requirements simply by bending the outer side plate component pieces on both sides of the side plate portion approximately 90 ° from the fold curve for inner folding and attaching and integrating them on the outer surfaces of the left and right inner side plate portions. You can get the body.

[0007]

Next, the present invention will be described in detail with reference to the illustrated embodiment. 1 to 6 show an embodiment of the present invention. Reference numeral 1 denotes a bottom plate portion 5 connected to the lower end of a rectangular body frame portion 2 composed of front and rear side plate portions 3, 3 and left and right side plate portions 4, 4. Square box body made of corrugated cardboard, 21 is the box body 1
Is a reinforcing bottom plate made of a corrugated cardboard material that is inserted into the bottom plate and is attached to the inner surface of the bottom plate portion 6.

The pass-through main body 1 is provided with outer folding lines 14, 14 extending vertically in the left and right side plates 4, 4 of the rectangular body frame 2 facing each other. A ridge-shaped folding line 17 in which a top line 17a is located on a line connecting the outer folding lines 14 and 14 on the continuous bottom plate portion 5 and ridge lines 17b reach four corners from both ends of the top line 17a,
Linear cuts 18, 18 are provided between both ends of the top line 17 a and the outer folding lines 14, 14.
The bottom plate 21 is substantially the same size as the bottom plate portion 5 and is provided with a notch 22 for a handle at a required side edge.

The pass box body 1 as described above is assembled from one pass box body forming plate. In the pass-through box body forming plate, front and rear side plates 3 and 3 are continuously connected to two opposite front and rear sides of a rectangular bottom plate 5 via internal fold lines 6 and 6, and the bottom plate 5 faces each other. Outer folding lines 14 and 14 for folding in two directions extending in the vertical direction and long holes 15 for manual insertion are provided on the two left and right sides.
The inner left and right inner plate portions 4a, 4a provided with the inner fold lines 9, 9
And on both sides of the front and rear side plate portions 3, 1/1 of the front and rear width of the bottom plate portion 2 via the internal folding line 7.
Outer plate component pieces 4b each having a width slightly smaller than 2 are continuously provided, and narrow width plate portions 10 and 10 are provided at the respective front ends of the front and rear side plate portions 3 and 3 via the inner folding lines 8 and 8. At the end, reinforcing plate portions 13, 13 having inward folding lines 12, 12 formed inward at the ends thereof through the inner folding lines 11, 11, are further connected, and the bottom plate portion 5 is provided with the reinforcing plate portions 13, 13. A top line 17a is located on a line connecting the outer fold lines 14 and 14, and a ridge-shaped fold line 17 in which ridge lines 17b reach four corners from both ends of the top line 17a, and both ends of the top line 17a and the outer fold line 14, 1
4, and linear cuts 18, 18 are formed. The inner folding lines 6, 7, and 9 in the pass-through box body forming base plate are all double lines so that they can be easily bent. To form the width plate portion W between the inner fold lines 7 and 7 by using the inner fold line 7 of the portion to be a double line as a double line, a tongue piece w is continuously provided on the lower edge of the width plate portion W and 4 It is preferable that the gap between the two corner portions and the bottom plate portion 5 is filled with the tongue piece w.

Then, the front and rear side plates 3, 3 following the two opposite front and rear sides of the bottom plate 5 of the box body forming plate are bent approximately 90 degrees from the inner fold lines 6, 6, and the bottom plate 5 is erected.
The inner plate portions 4a, 4a following the left and right two sides are bent upright by approximately 90 degrees from the inner fold lines 9, 9, respectively, and the outer plate portion constituent pieces are respectively connected to both sides of the front and rear side plate portions 3, 3. 4
b is bent inwardly by about 90 ° from the inner fold line 7 so that the outer fold line 14 is positioned in a small gap 16 formed between the abutting ends thereof.
b is adhered and integrated on the outer surface of the inner plate portion 4a. Further, the reinforcing plate portions 13, 13 are folded in two from the fold lines 12, 12, and inward from the inner fold lines 8, 8 by approximately 90 °. The reinforcing plates 13 and 13 are adhered to the inner surfaces of the front and rear side plates 3 and 3 so that the rim is formed by the width plate portions 10 and 10 and the rectangular shape having the reinforcing edges 19 and 19 at the rim. Is formed following the bottom plate 5.

In the drawing, reference numeral 20 denotes two of the bottom plate portions 5.
A triangular cutout provided at the top of the descending ridge portion 5a sandwiched between the two ridgelines 17b, 17b, 20a is a circular cutout formed at the skirt end of the cutout 20 for preventing tearing, and 31 is a width plate portion 1
The reference numeral 32 denotes a connecting support convex piece cut and raised at the outer edge of the outer plate part 32, and the same reference numeral 33 denotes an outer plate. Component piece 4
b is a connection supporting convex piece engaging portion formed on the lower edge of the lower portion b.

[0012] With this configuration, the packaged product is stored in the internal storage space and is used in the same manner as a normal pass-through box, but when not in use, the hand is inserted into the notch 22 for the hand. After taking out the reinforcing bottom plate 21 from the box body 1 with
If the left and right side plates 4, 4 are folded in two from the outer folding lines 14, 14, the body frame 2 is folded so that the front and rear side plates 3, 3 are close to each other, and at the same time, the bottom plate 5 is folded from the folding line 17. Since it is folded into a shape and becomes a flat state stored between the front and rear side plates 3, 3, it can be stored and transported without being bulky. When the user wants to use the folded state again, he puts his / her fingers between the upper portions of the front and rear side plates 3 and 3 and applies a force in a direction in which the interval between them becomes larger, as shown in FIGS. The left and right side plate portions 4 and 4 folded in two from the vertical outer folding lines 14 and 14 and the bottom plate portion 5 folded in a trapezoidal shape from the ridge-shaped folding line 17 so as to be folded. As shown in FIG. 1, the left and right side plates 4 and 4 and the bottom plate 5 are properly developed without any special operation, so that the bottom plate 5 is developed in a flat plate shape. Thereafter, a bottom plate 21 is superimposed on the upper surface of the developed bottom plate portion 5 to prevent the package from falling out due to the weight of the packaged product.
Is prevented from being folded by the folding line 17, the packaged product is stored in the internal storage space in this state, and after that, it can be used like a normal pass-through box.

However, during storage and transportation when not in use, for example, as shown in FIG. 6, two cardboard boxes are left unfolded and one of them is used as a receiving box and the other is used as a lid box. By storing and packing about 10 pieces folded in a receiving box together with the bottom plate, it is possible to store and transport in a good format.

In addition, two ridges 17 of the bottom plate 5
b, since the top portion of the downlink building portion 5a sandwiched 17b is formed in a triangular-shaped cut-out 20, 2-folded folding edge of the left and right side plates 4 and 4 when folded is housed in a triangular-shaped cut-out 20 will be able to fold without it and becomes particularly bulky that, further since the reinforcing edges 19, 19 folded inwardly on the upper edge of the front and rear side plates 3, 3 are provided, the Kayoibako body 1 This is particularly preferred because the rim is reinforced and has sufficient strength to withstand stacking.

In producing such a corrugated cardboard box, as described above, the front and rear side plate portions 3, 3 are connected to the front and rear edges of the rectangular bottom plate portion 5 via the inner folding line 6, and are connected to each other. Approximately の of the front-rear width of the bottom plate portion 5 via the inner folding line 7 on both sides
Outer plate portion forming pieces 4b, 4b each having a width and provided with a long hole 15 for manual insertion are continuously provided, and supplemented to the end of each side plate portion 3.
The strong plate portions 13 are connected to each other with a narrow width plate portion 10 interposed therebetween.
On the other hand, left and right inner plate portions 4a, 4a are continuously provided on the left and right edges of the bottom plate portion 5 via an inner folding line 9, and further, the bottom plate portion 5
The ridgeline 17a is located on the front and rear bisecting lines of the ridgeline 17a, and the ridgeline 17b, 17b is formed at the four corners from both ends of the topline 17a. Linear cuts 18, 18 are provided over the base ends of the side plates 3, 3, and sandwiched between two ridge lines 17b.
If the top part of the descending ridge part 5a to be formed is formed in a triangular cutout 20, a pass box body forming base plate is used, so that a cardboard pass box having the above characteristics can be easily formed from one sheet of material. There is an advantage that can be assembled.

[0016]

As is apparent from the above description, the present invention can be applied before and after the reinforcing plate is folded back via the width plate on the upper edge.
Bottom plate and the inner plate that is the main plate of the left and right side plates.
Bend upright on the four sides of the board, and vertically on each inner board
Forming an external folding line for folding in two and for manual insertion
A long hole is provided, and the outer surface is connected from both sides of the front and rear side plates.
The outer fold line is placed between the tips of the outer plate component pieces provided.
The top plate is positioned on a line connecting the outer fold lines, and a ridge-shaped folding line in which ridge lines reach four corners from both ends of the top line, and Providing a linear cut connecting between both ends of the line and the outer folding line;
Cut the top of the descending ridge between two ridges
A cardboard box body formed in a gap, and the box body inserted into the box body and attached to the bottom plate portion.
Consists of a separate reinforcing bottom plate.When in use, the box body is held in the expanded state by the reinforcing bottom plate, but when not in use, the reinforcing bottom plate is removed from the box body and the both side plate parts are folded twice from the outer folding line Then, the trunk frame part is folded into a flat state with its front and rear plate parts close to each other, and at the same time, the bottom plate part is folded into a trapezoidal shape from the folding line and stored between the front and rear plate parts, so it is excellent in strength In addition, when the body frame is folded in two from the outer folding line and folded in a flat state in which the front and rear side plates are close to each other, the four sides of the bottom plate are connected to the lower edge of the body frame. Despite being a single product, it is folded into a trapezoidal shape from the folding line and the two folded left and right side plate parts are stored without bulk between the front and rear side plate parts, and can be folded with simple operation In addition, thickness It can be reduced to about / 4, which can greatly improve the storage and transportation efficiency. In addition, the bottom plate keeps the body frame and bottom plate in use, so it can be deformed even if it is used repeatedly. In other words, the package will be properly protected. Therefore, the present invention solves the conventional problems and contributes to the development of the industry as a corrugated cardboard box having sufficient strength that can be easily folded and returned and stored without being bulky, and a base plate for forming the box body. It is a huge thing to do.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a cardboard box of the present invention.

FIG. 2 is a plan view showing an embodiment of a blank for forming a main body of a cardboard box of the present invention.

FIG. 3 is a plan view showing an embodiment of a bottom plate used for the cardboard box of the present invention.

FIG. 4 is a perspective view showing a state in which the box body of the cardboard box of the present invention is folded.

FIG. 5 is a longitudinal sectional side view showing a state in which the box body of the cardboard box of the present invention is folded.

FIG. 6 is a partially cutaway side view showing a state in which a large number of corrugated cardboard boxes of the present invention are packed.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 pass box body 2 trunk frame 3 front and rear side plates 4 left and right side plates 4a inner plate 4b outer plate component piece 5 bottom plate 5a down ridge 6 inner fold line 7 inner fold line 8 inner fold line 9 inner fold line 14 outer fold line 17 Folding line 17a Top line 17b Ridge line 18 Linear cut 19 Reinforcement edge 20 Triangular notch 21 Reinforced bottom plate

Claims (4)

(57) [Claims] (1 ) A reinforcing plate is provided on upper edges through width plate portions (10), (10).
Side plate parts (3), (3) before and after the parts (13), (13) are folded back
And the inner plate (4), which is the main plate of the left and right side plates (4) and (4).
a) and (4a) are bent upright on the four sides of the bottom plate (5), and
The plate part (4a) has an outer folding line (1
4), (14) and long holes for hand insertion (15), (15)
On the outer surface, on both sides of the front and rear side plates (3) and (3).
The outer plate part pieces (4b) and (4b) that are continuously connected
Paste leaving a gap (16) where the outer folding lines (14) and (14) are located
On the other hand, on the bottom plate portion (5), a top line (17a) is located on a line connecting the outer folding lines (14) and (14), and ridge lines (17b) are provided at the four corners from both ends of the top line (17a). Folding line (17) reaching the ridge, reaching both ends of the top line (17a) and the outer folding lines (14), (1
4) a linear cutting connecting between the (18), the two edges provided with (18)
Cut the top of the descending ridge (5a) between the lines (17b)
The box body (1) made of corrugated cardboard formed in the gap (20) and the box body attached to the inner surface of the bottom plate (5) of the box body (1)
It consists of a reinforcing bottom plate (21) that is separate from the box body (1) that holds the shape of (1), and takes out the reinforcing bottom plate (21) from the box body (1) when not in use. When the left and right side plates (4) and (4) are folded in two from the outer fold lines (14) and (14), the body frame (2) comes close to the front and rear side plates (3) and (3). It is folded flat and the bottom plate (5) is folded into a trapezoidal shape from the fold line (17) so as to be stored between the front and rear side plates (3) and (3). Cardboard box. 2. The reinforcing edge (19) is cut from the outer edge of the width plate (10).
While providing the raised connection support convex piece (31),
The side plate part constituting piece (4b) has a connecting support convex piece (32) on its upper edge.
And a connection support projection engaging part (33) on the lower edge.
The cardboard box according to claim 1, wherein the cardboard box can be stacked . 3. An inner fold line (6) at the front and rear edges of the rectangular bottom plate (5).
The front and rear side plates (3) and (3) are connected in series via
Approximately の of the front-rear width of the bottom plate portion (5) via the inner folding line (7)
Outer plate structure with width and slot (15) for hand insertion
Pieces (4b) and (4b) are connected in series and attached to the end of each side plate (3).
Reinforcement plates (13) are connected to each other via narrow width plate (10)
On the other hand, the left and right edges of the bottom plate (5) are
The left and right inner plates (4a) and (4a) are connected in series, and
The top line (17a) is located on the plate part (5) on the front and rear bisectors, and
Edges (17b), (17b) at the four corners from both ends of the top line (17a)
To form a ridge-shaped folding line (17)
Then, from both ends of the top line (17a), left and right inner plates (4a), (4
Provide two linear cuts (18), (18) over the base end of a)
Cut the top of the descending ridge (5a) between the lines (17b)
Through the corrugated cardboard box characterized by being formed in the gap (20).
Base plate for forming the box body. 4. A cut between a reinforcing plate (13) and a width plate (10).
While providing the connection supporting convex piece (31) that can be raised , the outer plate
The component supporting piece (4b) is provided with a connecting support convex piece (32) at the upper edge thereof.
And a connecting support projection engaging portion (33) is provided on the lower edge.
Kayoibako body forming element of cardboard Kayoibako of claim 3 that
Board.