JP3124032U - Cardboard box for packing - Google Patents

Abstract

An object of the present invention is to accommodate and pack mainly lightweight items such as vegetables, so that unpacking can be easily performed with one touch, and the cardboard box is hardly damaged during unpacking, and can be easily reused after unpacking. I want to provide a cardboard box for packing.
After forming the body part, the first cover pieces J and K of the first block A and the third block C are folded from the fold lines i and k, the end edges are butted, and the top part is closed. A piece is formed, an opening is formed in the center of the lid piece by abutting the notches J1 and K1, and a long hole is formed on both sides of the opening of the lid piece by the recesses J2, J2, K2, and K2. The second cover pieces L and M of the second block B and the fourth block D are mountain-folded from the folding lines j and m, and formed by the first cover pieces J and K of the first block A and the third block C, respectively. The convex pieces L1 and M1 formed on the both sides of the lid piece and formed on each of the second lid pieces are inserted into the long hole portions on both sides of the opening of the lid piece and the second lid pieces L and M are inserted. A cardboard box for packaging in which each is engaged with a lid piece.
[Selection] Figure 1

Description

  The present invention mainly relates to a packaging cardboard box suitable for packaging lightweight items such as salad vegetables, leafy vegetables such as lettuce and sanchu.

Corrugated cardboard boxes are used for packing goods, but generally, cardboard boxes are used to hold articles in the interior, and then stick the mating part of the left and right lid parts with tape to keep the lid closed. Is set.
In this case, in order to unpack the cardboard box, it is necessary to remove the attached tape. The work is cumbersome and complicated, and the surface structure of the tape attachment part of the cardboard box is peeled off in the process of peeling the tape. The cardboard box is damaged, and it is difficult to reuse the cardboard box without damaging the cardboard box, which is disadvantageous from an economical point of view.

Conventionally, a device for facilitating unpacking of a cardboard box is known (for example, see Patent Document 1).
Registered Utility Model No. 3019071

The device of Patent Document 1 continuously forms a breakable cut portion 16 that separates the lid portion 15 from the upper surface to the front surface of a packaging cardboard box 10 made of a cube (the reference numeral in the same publication is used hereinafter). The breakable notch 16 extends near the upper front end of the corrugated cardboard box 10, the end portion is inclined to form a breakable inclined notch 16 </ b> A, and both lower ends of the breakable inclined notch 16 </ b> A are horizontal. When the lid is cut off, the boundary portion tensile force with the breaking inclined notch 16A is applied intensively, and the lid 15 extends along the breaking inclined notch 16A. It is a configuration that can be separated.
When the lid 15 is separated, a wide outlet 25 extending from the upper surface to the front surface of the cardboard box 10 can be opened.

In the above-described device disclosed in Patent Document 1, it is possible to open the lid of the cardboard box and open the opening having a large opening area by one operation, but it is necessary to separate the lid from the cardboard box. It is cumbersome and cumbersome in terms of packing workability, and it is difficult to open the package, and the lid is separated from the front and top surfaces of the cardboard box, so that an opening with a large opening area can be formed by unpacking. However, the cardboard box including the lid piece after unpacking cannot be reused, and the cardboard box after unpacking has to be discarded, which is a great economic disadvantage.
The present invention has been made to solve the above problems.

  The present invention mainly accommodates and packs light-weight items such as vegetables, can be easily unpacked with a single touch, is less likely to damage the cardboard box during unpacking, and can be easily reused after unpacking. An object is to provide a certain cardboard box for packing, and another object is to provide a cardboard box for packing that can be obtained with a simple configuration and simple assembling work.

  The invention according to claim 1 is a packaging cardboard box, wherein three folding lines a, b, c provided in the short side direction are provided on the long side of one horizontally-long rectangular cardboard substrate 1; A horizontally long first block A is formed outside the first fold line a, a short second block B is formed between the first fold line a and the second fold line b, and the second fold line b A third block C having the same length as the first block is formed between the third fold line c, and a fourth block D having the same length as the second block is formed outside the third fold line c. On one outer side of the outer first or fourth block, a narrow joining piece E is integrally formed via a fold line d in the short side direction, and first to third fold lines a, b, c are formed. The first to fourth blocks A to D are mountain-folded, the joining piece E is joined to one of the first or fourth blocks to form a box body, and the first to fourth blocks A to D are formed. D's At the end, lower fold lines e to h are provided in the long side direction orthogonal to the fold lines a, b, and c, and the blocks A to D are continuous below the lower fold lines e to h. The bottom pieces F, G, H, and I are integrally provided, the bottom pieces F, G, H, and I of the first to fourth blocks A to D are mountain-folded from the fold lines e to h, and the bottom pieces F, G, H, and The bottom part which closes the trunk | drum lower end of the said box is formed by making a part of I go up and down, and the upper part parallel to the said lower fold line eh is formed in the upper end of 1st-4th block AD Folding lines i, j, k, m are provided, and a symmetrical first lid piece that covers the upper half of the body part above the upper folding lines i, k of the first block A and the third block C. J and K are provided respectively, and the first lid pieces J and K are symmetrically provided with the notches J1 and K1 at the end edges and two parallel recessed portions J2, J2, K2 and K2 which lie in the fold line direction. , Symmetrically shaped second lid pieces L and M are provided above the upper fold lines j and m of the second block B and the fourth block D, respectively, and at the center of each edge of the second lid pieces L and M. Is provided with convex pieces L1 and M1, the first lid pieces J and K of the first block A and the third block C are folded from the fold lines i and k, the end edges are butted together, and the lid piece that closes the upper part of the trunk is provided. Forming the opening part in the center part of the lid piece by abutting the notch parts J1, K1, and forming a long hole part on both sides of the opening part of the lid piece by the concave parts J2, J2, K2, K2, The second cover pieces L and M of the second block B and the fourth block D are folded from the folding lines j and m, and formed by the first cover pieces J and K of the first block A and the third block C. The projecting pieces L1 and M1 formed on the second lid pieces and overlapped on both sides of the lid piece are inserted into the elongated holes on both sides of the opening of the lid piece. Each of the second lid pieces L and M is engaged with the lid piece.

  In a second aspect of the present invention, the second lid pieces L and M provided above the folding lines j and m of the second block B and the fourth block D are parallel to the folding lines j and m, respectively. The outer fold lines n and p are provided outside and the outer fold lines n and p are foldable so that the convex pieces L1 and M1 of the second lid pieces L and M can be made longer than the length of the lid piece. It is characterized by easy extraction from the hole.

  The invention according to claim 3 is the invention according to claim 1, wherein the notches L2, L2, M2, M2 are symmetrically provided on both sides of the convex pieces L1, M1 formed at the center of the edge of the second lid pieces L, M. And a second lid that is exposed on both sides of the lid piece when the second lid pieces L and M are overlapped on both sides of the lid piece and the convex pieces L1 and M1 are engaged with the elongated hole. It is characterized in that it is a finger hook when the pieces L and M are raised.

  According to the first aspect of the present invention, after forming the body portion, the first cover pieces J and K of the first block A and the third block C are folded from the fold lines i and k so that the edges are abutted, A lid piece that closes the top is formed, the notches J1 and K1 are butted together to form an opening in the center of the lid piece, and a long hole is formed on both sides of the opening of the lid piece by the recesses J2, J2, K2, and K2. The second cover pieces L and M of the second block B and the fourth block D are folded from the fold lines j and m, and the first cover pieces J of the first block A and the third block C are formed. The convex pieces L1 and M1 formed on the two sides of the second lid piece are overlapped on both side portions of the lid piece formed of K, and inserted into the long hole portions on both sides of the opening portion of the lid piece. Since each of L and M is engaged with the lid piece, first of the convex pieces L1 and M1 inserted into the first lid piece and the long hole portion thereof on the body portion. By for cooperation, without the need for sealing means such as an adhesive tape, a cardboard box can be closed.

Further, in the present invention, in order to unpack, the second lid piece is obtained by inserting a finger into the opening formed in the lid piece that covers the trunk and pulling out the first lid pieces J and K on both sides upward. The protruding pieces L1 and M1 provided on L and M can be extracted from the long holes provided on both sides of the opening, and can be opened quickly and easily and reliably, and the unpacking operation can be performed quickly. Can be taken out easily.
Furthermore, since the present invention does not require sticking or sealing with tape, there is no inconvenience such as damage when unpacking the cardboard box, and the same cardboard box can be used repeatedly and can be reused. As a result, a cardboard box that is extremely advantageous economically can be obtained.

  According to a second aspect of the present invention, in the first aspect, the second lid pieces L, M provided above the fold lines j, m of the second block B and the fourth block D may include the fold lines j, Parallel to m, outer fold lines n and p are provided on the outer sides thereof, and the outer fold lines n and p are foldable so that the convex pieces L1 and M1 of the second lid pieces L and M are covered. Since it is easy to pull out from the long hole of the piece, in addition to the effect of claim 1, it is easy to fold at the outer folding lines n and p, and when the lid is opened by putting a finger into the opening, the folding lines n and p By forming a chevron at this part, it is possible to easily remove the convex pieces L1 and M1 from the opening, and to prevent the convex pieces L1 and M1 from being damaged during the extraction.

  According to a third aspect of the present invention, in the first aspect, the notches L2, L2, M2, and M2 are symmetrically formed on both sides of the convex pieces L1 and M1 formed at the center of the edge of the second lid pieces L and M. And a second lid that is exposed on both sides of the lid piece when the second lid pieces L and M are overlapped on both sides of the lid piece and the convex pieces L1 and M1 are engaged with the elongated hole. Since the fingers are raised when the pieces L and M are raised, in addition to the effect of the first aspect, the protruding pieces L1 and M1 are prepared to be removed from the elongated holes in advance through the notches L2, L2, M2 and M2. It is possible to prevent the convex pieces L1 and M1 from being damaged and to increase the number of times the cardboard box is reused.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a development view of a cardboard box according to the present invention, and is a diagram showing a substrate 1 (blank material) made of a piece of cardboard paper.
The substrate 1 is formed by punching out a piece of corrugated paper, and as a whole has a substantially horizontally long rectangle, and the vertical middle portion of the horizontally long rectangle is partitioned by three folding lines a, b and c in the short side direction. Then, the first block A, the second block B, the third block C, and the fourth block D are formed from the left side of the figure.
The upper portions of the second block B and the fourth block D are provided with long hole-like handle holes B1 and D1 extending in the left-right direction.

Each of the blocks A to D is rectangular, and the first block A before the first fold line a has a large size in the left-right direction (width direction), and the first fold line a and the second fold line b. The second block B between the second fold line and the second fold line a has a small size in the left-right direction, and the third block C between the second fold line a and the third fold line c has the same dimensions as the first block A, The fourth block D extending outside the folding line c has the same dimensions as the second block B.
A fold line d is provided on the short side outside the first block A, and a narrow joint piece (E) is continuously provided integrally outside the fold line d.

Below each block A, B, C, D, in the long side direction of the substrate 1, lower fold lines e, f, g, h are provided, and below the fold line e of the first block A, A bottom piece F projecting downward in a mountain shape is provided, and the bottom piece F has a convex piece F1.
An approximately L-shaped bottom piece G having a large width is provided below the fold line f of the adjacent second block B, and the full-width end portion is provided below the fold line g of the adjacent third block C. A bottom piece H having a concave portion H1 is provided, and a bottom piece I symmetrical with the bottom piece G of the second block B is provided below the folding line h of the adjacent fourth block D.

Further, upper fold lines i, j, k, and m are provided in the long side direction of the substrate 1 on the upper side of each of the blocks A to D.
Above the upper fold line i of the first block A, a first cover piece J is continuously extended, and the length from the fold line to the edge J3 is the length of the second block B (fourth block D). The width J is set to ½ of the width in the left-right direction, a notch J1 is provided at the center of the edge J3, and elongated recesses J2 and J2 are provided on both sides of the notch J1. The recesses J2 and J2 are formed so that the inner part in the width direction is symmetrically deeper by one step.
The third block C has the same shape as the first block A, and includes the first lid piece K having the same shape and the same size above the fold line k. The first lid piece K is the first lid piece of the first block A. Similarly to J, the dimension from the edge K3 to the fold line k is ½ of the width in the left-right direction of the second block B (fourth block D). The edge K3 has the same notch K1, It has left and right recesses K2, K2.

Second lid pieces L and M are integrally extended upward from the upper fold lines j and m of the second block B and the fourth block D. The second lid pieces L and M have the same shape, the left and right widths are substantially the same as those of the blocks B and D, and the length (height in the figure) to the edges L3 and M3 is the first lid piece J, Shorter than K.
Convex pieces L1 and M1 are provided at the edges L3 and M3 of the second lid pieces L and M and the central portion in the left-right direction, and cuts are provided on both sides of the second lid pieces L and M so as to be easily bent, and on both sides of the convex pieces L1 and M1. Are provided with notches L2, L2, M2, and M2.
Outside the fold lines j and m of the second lid pieces L and M, second fold lines n and p having a narrow upward width are provided in parallel with the fold lines j and m.

Next, a process for forming the packaging cardboard box by bending the above substrate will be described.
2 to 5 are explanatory views showing the operation of assembling the bottom, FIG. 2 is a diagram of the operation of forming blocks by folding the blocks A to D, FIG. 3 is a diagram of bending the half of the bottom piece, and FIG. FIG. 5 is a diagram immediately before completion, and FIG. 5 is a diagram in which the bottom is completed.

The first block A to the fourth block D are valley-folded from the fold lines a to c to form the body 11 of the rectangular cardboard box 1 in plan view, and at this time, the fold line d is placed outside the first block A. The joint piece E is bent from the fold line d and joined and integrated with the inner surface of the outer end portion of the fourth block M with an adhesive or the like.
Next, the bottom piece H of the third block C is valley-folded from the fold line e as shown by an arrow (A), and the folded state is shown in FIG. .

Next, the bottom pieces G and I of the second block B and the fourth block D having small horizontal dimensions are folded inward as indicated by arrows (A) and (A) from the folding lines f and h. This state is shown in FIG.
On both sides of the bottom piece H, the substantially triangular base pieces G1, I1 of the left and right bottom pieces G, I are overlapped, and the edges of the convex pieces G2, I2 of the bottom pieces G, I are abutted with each other, A gap is formed between the bottom piece H and the recess H1.

This state is shown in FIG. 4, and the bottom piece F of the first block A is mountain-folded from the fold line e as indicated by an arrow (c), and the convex piece F1 of the bottom piece F is inserted into the gap as indicated by an arrow (c).
As a result, the bottom pieces F, G, H, and I become intertwined with each other and engage with each other to form the bottom 12 of the cardboard box 1.

  FIGS. 6 to 9 are diagrams showing the assembly of the lid of the cardboard box 10, FIG. 6 is a diagram showing the state in which the first and second lid pieces stand up on the periphery of the cardboard box body, and FIG. FIG. 8 is a diagram showing a state in which one lid piece is bent, FIG. 8 is a diagram in which a second lid piece is folded and a convex piece is inserted into a long hole formed by folding the first lid piece, and FIG. 9 is an external view in a completed state. FIG. 10 is an enlarged view of FIG. 9 and shows the internal structure of the lid piece with a broken line.

As shown in FIG. 6, the body 1 of the cardboard box 10 is arranged upward, and first the first lid pieces J and K facing the upper fold lines i and k of the first block A and the third block C are indicated by arrows ( D) Fold it as shown in (d).
FIG. 7 shows a state in which the first lid pieces J and K are half-folded.
By folding the first lid pieces J and K in a mountain, as shown in FIG. 8, the first lid pieces J and K are abutted with their edges J3 and K3 facing each other in the horizontal state, and the lid pieces of the cardboard box 10 13 is formed.

In this state, a finger-hanging opening 14 is formed by the aforementioned notches J1 and K1 at the abutting portion of the original first lid pieces J and K at the center of the lid piece 13.
And the long holes 15 and 15 will be formed in the direction orthogonal to the length direction of the 1st cover pieces J and K by the above-mentioned recessed part J2, J2, K2, K2 in the both sides of the opening part 14. FIG. .
Then, as indicated by arrows (e) and (e), the second lid pieces L and M of the second block B and the fourth block M are folded from the upper folding lines j and m.
This state is shown in FIG.

  Since the second lid pieces L and M are provided with the second fold lines n and p parallel to the fold lines j and m, the second cover pieces L and M can be folded from the fold lines n and p. The convex pieces L1 and M1 located on the outer side are easily bent, and the convex pieces L1 and M1 can be inserted into the long holes 15 and 15 formed in the lid piece 13, and the intermediate portions of the second lid pieces L and M can be inserted. Bending slightly, the convex pieces L1, M1 can be easily inserted into the long holes 15, 15.

  The long holes 15 and 15 have wide portions 15a and 15a where the concave portions J2, J2, K2 and K2 are wide and narrow narrow portions 15b and 15b, and the convex portions L1 and M1 are wide at the tip portions. A wide hook-like shape, with the tips of the convex portions L1 and M1 inserted into the wide portions 15a and 15a of the long holes 15 and 15, and the convex portions L1 and M1 being substantially parallel to the bottom (ceiling) of the lid piece 15 Thus, the second lid pieces L and M are latched to the narrow portions 15b and 15b, and are held on top of each other near the both end portions of the lid piece 13 from above.

As described above, the lock lid pieces 16 and 16 that maintain the closed state by the lid piece 13 are formed on both ends of the lid piece 13 that covers the top of the trunk portion 11 of the cardboard box 10.
This state is shown in FIG. 9, and FIG. 10 shows this in an enlarged manner. On both sides of the body portion 11 of the cardboard box 10, handle portions 19, 19 for holding the cardboard box 10 by hand are formed.

FIG. 11 is an explanatory perspective view showing another embodiment of the present invention, including an explanatory view of the unpacking action, and FIG. 12 is a perspective view after unpacking.
In the present embodiment, the lock lid pieces 16 and 16 do not have the notches corresponding to the above-described L2 and M2, and the cardboard box 10 has a finger in the opening 14 provided in the center portion of the lid piece 13. In the figure, the index finger is inserted from above, the inserted fingertip is bent and applied to the back surface of the peripheral portion of the opening 14, and the finger is lifted as shown by an arrow (f) to lift the center portion of the lid piece 13.

The first lid pieces J and K constituting the lid piece 13 are lifted in a direction to open upward, and the lock lid pieces 16 and 16 are also lifted to open to the left and right. As a result, the lock lid pieces 16 and 16 are bent in a mountain shape from the second fold lines n and p, inserted into the long holes 15 and 15, and the convex pieces M1 and L1 engaged with the long holes 15 and 15 are inclined. It will be pulled out upward, and it will be smoothly pulled out from the long holes 15, 15.
This unpacking is shown in FIG. 12 after unpacking.
After unpacking, remove the leafy vegetables stored inside.

As is apparent from the above, the cardboard box according to the present invention is not required to be closed by covering the lid piece with an adhesive tape after the lid is closed, and a cardboard box that is extremely easy to pack and close is obtained. The unpacking of the cardboard box does not require any tape peeling work, and if the fingertip is inserted into the opening of the lid piece and the lid is lifted, the lid opens and is unpacked. Easy.
Further, since the lid is not closed by attaching the tape, the cardboard box can be used repeatedly without damaging the lid of the cardboard box when unpacking.

  In the above-described embodiment, the notches J1 and K1 that form the opening 14 after being provided in the first lid pieces J and K are formed in an arc shape to form an oval or egg-shaped opening. The shape of the notch portion is arbitrary, this portion may be a symmetrical concave shape close to a square shape, and the opening portion may be a square hole shape.

  The cardboard box for packing according to the present invention is suitable for packing and transporting lightweight items such as leafy vegetables.

It is a development view of the cardboard box concerning the present invention, and is a figure showing the substrate (blank material) which consists of corrugated paper. It is explanatory drawing which shows the operation | work which assembles a bottom, and is a figure of the operation | work which bends block AD and forms a trunk | drum. It is a figure which bends the half part of a bottom piece. It is a figure just before completion. It is the figure which the bottom completed. It is a figure which shows the assembly of the lid | cover of a cardboard box, and is a figure of the state which the 1st, 2nd lid piece stood up on the cardboard box trunk | drum periphery. It is a figure of the state which bent the 1st cover piece. It is a figure which folds a 2nd cover piece and inserts a convex piece into the long hole part formed by bending the 1st cover piece. It is an external view of a completed state. It is the enlarged view of FIG. 9, and is the figure which showed the internal structure of the cover piece with the broken line. It is explanatory perspective view which shows the other Example of this invention, and is a figure containing explanatory drawing of an unpacking effect | action. FIG. 12 is a perspective view after unpacking. It is a perspective view after unpacking of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Cardboard box, 11 ... Body part of cardboard box, 12 ... Bottom, 13 ... Cover piece, 14 ... Opening part.

Claims (3)

Three fold lines (a, b, c) provided in the short side direction are provided on the long side of one horizontally-long rectangular corrugated board substrate (1), and the horizontally long second fold line is provided outside the first fold line (a). One block (A) is formed, a short second block (B) is formed between the first fold line (a) and the second fold line (b), and the second fold line (b) A third block (C) having the same length as the first block is formed between the third fold line (c), and a fourth block having the same length as the second block is formed outside the third fold line (c). A block (D) is formed, and on one outer side of the outer first or fourth block, a narrow joint piece (E) is integrally formed via a fold line (d) in the short side direction,
The first to fourth blocks (A to D) are folded from the first to third fold lines (a, b, c), and the joining piece (E) is connected to one of the first or fourth blocks. Join to form the box body,
A lower fold line (e to h) is provided at a lower end of the first to fourth blocks (A to D) in a long side direction orthogonal to the fold line (a, b, c), and the lower fold line (e -H), the bottom piece (F, G, H, I) that is continuous with each of the blocks (A-D) is integrally provided on the lower side,
Each bottom piece (F, G, H, I) of the first to fourth blocks (A to D) is mountain-folded from the fold line (e to h), and a part of the bottom piece (F, G, H, I) To form a bottom that closes the lower end of the body of the box
An upper fold line (i, j, k, m) parallel to the lower fold line (e to h) is provided at the upper end of the first to fourth blocks (A to D),
On the upper side of the upper fold line (i, k) of the first block (A) and the third block (C), a symmetrical first lid piece (J, K) that closes half of the upper part of the trunk is formed. Each of the first lid pieces (J, K) is provided symmetrically with a notch (J1, K1) at the end edge and two parallel recesses (J2, J2, K2, K2) that lie in the fold line direction. Provided,
Symmetrically shaped second lid pieces (L, M) are provided above the upper fold lines (j, m) of the second block (B) and the fourth block (D), respectively, and the second lid pieces (L, Protruding pieces (L1, M1) are provided at the center of each edge of M),
The first cover pieces (J, K) of the first block (A) and the third block (C) are folded from the fold line (i, k), the end edges are butted together, and the cover pieces that block the upper part of the body are attached. The notch (J1, K1) is abutted to form an opening at the center of the lid piece, and the recesses (J2, J2, K2, K2) form oblong holes on both sides of the opening of the lid piece. Form the
The second cover pieces (L, M) of the second block (B) and the fourth block (D) are mountain-folded from the fold line (j, m), and the first block (A), the third block (C) ) On the both sides of the lid pieces formed by the first lid pieces (J, K), and the convex pieces (L1, M1) formed on the respective second lid pieces are formed as openings of the lid pieces. Each of the second lid pieces (L, M) was engaged with the lid pieces by inserting into the long hole portions on both sides.
A cardboard box for packaging. The second lid pieces (L, M) provided above the fold lines (j, m) of the second block (B) and the fourth block (D) are parallel to the fold lines (j, m). Then, an outer fold line (n, p) is provided on the outer side, and the outer fold line (n, p) can be folded in a mountain, so that the convex piece (L1) of the second lid piece (L, M) , M1) can be easily extracted from the long hole of the lid piece. Provided symmetrically on both sides of the convex pieces (L1, M1) formed at the center of the edge of the second lid piece (L, M) are the missing portions (L2, L2, M2, M2). (L, M) is overlapped on both sides of the lid piece, and when the projecting pieces (L1, M1) are engaged with the elongated holes, the second lid piece exposed on both sides of the lid piece ( The packaging cardboard box according to claim 1, wherein the cardboard box is a finger hook for causing L, M).

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