JP6334922B2 - Cardboard cases - Google Patents

Description

  The present invention relates to a corrugated cardboard case in which a lid piece can be closed in accordance with the shape of a pile of stored vegetables.

In order to store vegetables and fruits such as vegetables, cardboard cases that can be folded from a single cardboard into a box shape are used so that the lid can be closed even if the volume increases to a certain extent.
The applicant first formed the lid part so as to spread outward, and the lid part can be locked in two to three stages according to the capacity of the fruits and vegetables (Patent Document 1), not in stages. We have developed a device that can lock the lid even if the capacity fluctuates (Patent Document 2).

  As shown in FIG. 7, the corrugated cardboard case of Patent Document 1 divides an end cover piece 44 into a main cover piece 44a and a lid cover piece 44b through a fold P, and has engagement grooves 45a and 45b. The stop piece 45 is connected through the crease Q. The side wall is provided with a cover 46 via a crease R, and is provided with a corner portion 47 on which the locking groove 45a or 45b is locked. Thus, since it comprises, even if it packs up fruit and vegetables from which a magnitude | size differs individually, a lid | cover can be expanded outside a cardboard case and can be closed in two steps.

  As shown in FIG. 8, the corrugated cardboard case of Patent Document 2 is provided with a fold S in the longitudinal direction at the center part of the side lid pieces 51 and 53 and an engaging piece 70 having jaws 73 at both ends. . Further, the end cover pieces 52 and 54 are provided with two cutout holes 52A each having a fold line T perpendicular to the fold line S and having a guide part 62 into which the engaging part 70 is inserted from above and the jaw part 73 is engaged. I have one. Since it is configured in this manner, the lid is easily closed according to the shape of the upper end even if the capacity to be stored varies, and the jaw portion 73 is locked by the guide portion 62 of the cutout hole 52A and closed.

Japanese Patent No. 4718794 JP 2013-116768 A

The corrugated cardboard case of Patent Document 1 is suitable for storing vegetables whose sizes vary in size and volume because the lid can be locked in two to three stages even when the fruits and vegetables are raised. In addition, since the lid is locked only at one location of the lid piece, the operation is simple.
However, in this cardboard case, the lid can be closed only in stages, so the lid is not closed following the shape of the heap of fruits and vegetables, the locking is incomplete, and the amount of vegetables to be packed is large Then, there is a problem in that the lid pieces are not sufficiently locked and the lid cannot be closed.

  Further, since the cardboard case of Patent Document 2 is provided with the folds S and T in the lid piece, the lid piece swells in accordance with the shape of the heap formed by the storage state of the fruits and vegetables, and can be reliably closed. However, since the engaging piece 70 is pushed into the cutout hole 52A and the jaw portion 73 is locked to the guide portion 62 of the cutout hole 52A, the closing operation can be performed only before (close to the closing portion). Absent. In addition, since there are four engaging pieces 70, each time one is closed, the cardboard case storing the fruits or vegetables is rotated, or the operator sequentially performs the closing operation while moving to the closing portion. There is a drawback that it takes time.

  Therefore, an object of the present invention is to provide a corrugated cardboard case in which a lid piece is surely closed by a simple operation even when fruits and vegetables are stored in a pile.

In order to achieve the above object, the cardboard case of the present invention is configured as follows.
That is, a pair of left and right side cover pieces (11, 13) and end cover pieces (12 ) connected to the upper ends of the side walls (21, 23) and the end walls (22, 24) via fold lines (A), respectively. , 14) are engaged with each other, and the side cover pieces (11, 13) are folded in a box shape from a single cardboard that is closed in accordance with the shape of the pile of stored fruits and vegetables. ) Are provided with 45-degree folds (G) from both ends of the fold (A) toward the center, and the cover surface pieces (112, 132) outside the fold (G) are the inner cover surface pieces. (111, 131) is formed lower and the upper end is provided with an insertion piece (7), and the end cover piece (12, 14) is 45 degrees from both ends of the fold (A) toward the center. fold (H) are respectively provided, the inside of the lid surface pieces from folds (H) (1 1,141) to the difference Komihen (7) is cut hole to be fitted (6A) is provided, said difference Komihen (7) is provided with an oval head (7a) jaw and (7b) While the fold line (K) provided at the lower end can be folded inward, the cutout hole (6A) is connected to the parallel vertical fold line (M) provided in the cover surface piece (121, 141). By bending the fold line (L) inward, a rectangular tongue piece (5) and a vertical ellipse-shaped presser piece (6) are cut and raised, and the insertion piece (7 ) Can move in the cutout hole (6A), the length of the fold (L) of the cutout hole (6A) is larger than the length of the fold (K) provided at the lower end of the insertion piece (7). It is characterized by being formed large inward.

The corrugated cardboard case includes side cover pieces (11, 13) and end cover pieces (12, 14) connected to the upper ends of the side walls (21, 23) and the end walls (22, 24) via folds (A), respectively. ), A 45-degree crease (G) and a crease (H) are provided from both ends of the crease (A) toward the center, respectively, so that even if the fruits and vegetables are larger than the storage volume , the crease (A) is in accordance with the piled state at the upper end. Thus, the side lid pieces (11, 13) and the end lid pieces (12, 14) can be easily closed .

The engaging means of the side lid pieces (11 , 13) and the end lid pieces ( 12, 14 ) are inserted into the lid surface pieces (112, 132) outside the folds (G) of the side lid pieces (11, 13). provided with a strip (7), folds the (H) than the inner lid side strips (121, 141) to the insertion piece (7) larger cut-out holes (6A) provided in Tanfutahen (12, 14), said The cutout hole (6A) is formed by cutting and raising from the crease (L) and bending it inward, and the insertion piece (7) is provided with an elliptical head (7a) and jaw (7b) at the lower end. The fold (L) of the cutout hole (6A) can be bent inward from the fold (K) so that the insertion piece (7) can move in the cutout hole (6A) according to the amount of stored items. Is made larger inward than the length of the crease (K) provided at the lower end of the insertion piece (7) .

The corrugated cardboard case according to the present invention has an oblique fold (G) and a fold (H) on the side lid pieces (11, 13) and the end lid pieces ( 12, 14) from the both ends of the fold line (A) toward the center portion, respectively. Even if there is a large amount of fruits and vegetables, the upper end is piled up and the end cover pieces (12, 14) and the side cover pieces (11, 13) are closed, so that the folds (G) and creases According to both (H), the lid can be easily closed in accordance with the heaped state of the upper end. Since the crease (G) and the crease (H) are 45 degrees from the crease (A), the amount of fruits and vegetables can be increased, and the crease (G) and the crease (H) can be formed in a stable mountain shape.

The lid closing means is provided with an insertion piece (7) outside the fold (G) of the side lid pieces (11, 13) and inside the fold (H) of the end lid pieces (12, 14). Since the cutout hole (6A) larger than the insertion piece (7) is provided in the insertion piece (7) , the end cover piece ( 12, 14) is closed and the side cover piece (11, 13) is closed. Since it can be closed only by a simple operation of inserting the hole into the cut-out hole (6A) , it is not necessary to perform the closing operation, and the closing operation can be performed in a short time.

It is a whole perspective view which shows embodiment of the cardboard case of this invention, and shows the state before closing a cover part. Same as above, in a development view of the cardboard case 200, it is a cardboard 100. The same as the above, it is the top view which expanded the latching | locking part of the cover part, (a) is the insertion piece 7 , (b) is the cutout hole 6A. The above shows the engagement state of the insertion piece 7 to the cutout hole 6A. (A) is the engagement state of the insertion piece when the stored item has a small capacity, and (b) is the medium capacity. A state in a certain case, (c) shows a state in the case of a large capacity. It is a partial perspective view which shows the state of a cover part when a storage thing is medium capacity | capacitance same as the above. It is a partial perspective view which shows the state of a cover part when a storage thing is a capacity | capacitance same as the above. It is a perspective view which shows the conventional cardboard case. It is a perspective view which shows another conventional cardboard case.

An embodiment of a cardboard case according to the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing the entire corrugated cardboard case 200 of the present embodiment. The size is 35 cm × 55 cm and the height is 15 cm. FIG. 2 is a development view of the corrugated cardboard case 200, and the size is 45 cm × 180 cm here.
FIG. 3 is an enlarged plan view of the locking portion of the lid portion, and FIG. 4 shows the state of the locking portion depending on the amount of stored items. FIG. 5 is a perspective view showing a state where the lid is closed when the stored item has a medium capacity, and FIG. 6 shows a case where the stored item has a large capacity.

As shown in FIG. 2, the corrugated cardboard 100 has a substantially rectangular shape, is provided with parallel creases A and creases B in the left-right direction, and is divided into three parts: a lid part 10, a peripheral wall part 20, and a bottom part 30.
The first-stage lid 10 is divided into a side lid piece 11, an end lid piece 12, a side lid piece 13, and an end lid piece 14 through a cut. The side lid piece 11 and the side lid piece 13 and the end lid piece 12 and the end lid piece 14 have the same shape.

  The side lid pieces 11, 13 are each provided with a crease G of 45 degrees with respect to the crease A from both ends, and are divided into a central lid face piece 111, 131 and a triangular lid face piece 112, 132. . The lid surface pieces 112 and 132 are formed to be lower in height than the lid surface pieces 111 and 131 in the central portion, and the insertion pieces 7 and 7 are provided so as to project symmetrically at the upper end. As shown in FIG. 3A, the insertion piece 7 has a jaw 7b formed by a head 7a and cuts d and e, and can be bent by a fold k.

  Further, the end cover pieces 12 and 14 are each provided with a fold line H of 45 degrees with respect to the fold line A from both ends, and the cover surface pieces 121 and 141 in the central part and the triangular cover surface pieces 122 and 142 are formed by the fold line H. It is divided into. The lid surface pieces 121 and 141 are provided with two cutout holes 6A on the left and right sides. As shown in FIG. 3 (b), the cut-out hole 6A is provided with a fold line L and a fold line M in parallel, and a rectangular tongue piece 5 and a vertical elliptical presser are formed between the cut lines a, b and c. A piece 6 is formed. When the presser piece 6 and the tongue piece 5 are cut and raised, a cutout hole 6A is formed. The length of the crease L (here, 42 mm) is longer (7 mm) than the length of the crease K (here, 35 mm) of the insertion piece 7.

The second-stage peripheral wall portion 20 includes folds C, D, E, and F in parallel from the right end in a direction perpendicular to the folds A to B, respectively, and a paste margin piece 25, a side wall 21, an end wall 22, a side wall 23, an end Divided into walls 24. Here, the side wall 21 and the side wall 23 have the same shape except for the adhesive margin piece 25, and the end wall 22 and the end wall 24 have the same shape.
Further, the bottom 30 of the third stage is divided into a side bottom piece 31, an end bottom piece 32, a side bottom piece 33, and an end bottom piece 34 through a cut. The end bottom pieces 32 and 34 are provided with creases J and J, respectively, and are divided vertically. The side bottom pieces 31 and 33 are provided with substantially triangular tongue pieces (not shown) on the left and right, respectively. Here, the end bottom piece 32 and the end bottom piece 34, and the side bottom piece 31 and the side bottom piece 33 have the same shape.

  Next, a procedure for folding the corrugated cardboard 100 (FIG. 2) configured as described above into the corrugated cardboard case 200 (FIG. 1) will be described.

First, it is folded up from the middle peripheral wall portion 20. This is bent from the position of the folds D, E, and F so as to surround a square, forming a side wall 21, an end wall 22, a side wall 23, and an end wall 24. Glue to the part.
Next, the bottom 30 is folded up. This closes the bottom surface while inserting the side bottom piece 31, the end bottom piece 32, the side bottom piece 33, and the end bottom piece 34 into each other, and holds them so that they do not fall out.

Next, a procedure for closing the lid 10 will be described.
First, the 45-degree fold H of the end cover pieces 12, 14 and the folds L, M of the tongue piece 5 and the presser piece 6 are folded to form creases. Similarly, the 45-degree crease of the side lid pieces 11, 13 is provided. G and the fold K of the insertion piece 7 are folded and creased.
Then, the end cover piece 12 and the end cover piece 14 are bent from the fold A portion toward the center, and then the side cover piece 11 is bent from the fold A portion toward the center from the right angle direction. Subsequently, the top cover piece 112 is put on the end cover piece 14 from the part of the crease G, and the insertion piece 7 is pushed into the cutout hole 6 </ b> A of the end cover piece 14. In this case, when the head 7a of the insertion piece 7 is pushed over the holding piece 6, the holding piece 6 is bent inward, and the insertion piece 7 enters the lower side of the holding piece 6 and is locked.

Subsequently, the side lid piece 13 is bent from the crease A portion toward the center, and the lid surface piece 132 at the tip from the crease G portion is covered on the end lid piece 14, and the insertion piece 7 is cut out in the cutout hole 6 </ b> A of the end lid piece 14. Push into. By performing this operation also on the end lid piece 12 side, the lid face pieces 111 and 131 are closed.
As described above, the closing operation of the lid portion 10 simply inserts the smaller insertion piece 7 into the cutout hole 6A almost straightly, so that the four insertion pieces 7 are sequentially inserted into the cutout hole 6A. However, the operator can work in one place and can close quickly.

Next, the manner in which the closed state of the lid 10 changes depending on the capacity for storing fruits and vegetables in the cardboard case 200 will be described with reference to FIGS.
When the capacity stored in the cardboard case 200 is small, as shown in FIG. 4A, the side lid pieces 11 and 13 and the end lid pieces 12 and 14 are largely overlapped, and the lid portion 10 is almost flat. . That is, when the storage amount is small, there is no upward swell due to the fruits and vegetables, the fold G of the side lid pieces 11 and 13 and the fold H of the end lid pieces 12 and 14 are small, and the fold G is broken. The eyes H are almost overlapped, and the insertion piece 7 goes deep into the cutout hole 6A.
At this time, the root of the insertion piece 7 (fold K) is located closer to the outside (end walls 22 and 24) of the fold L of the cutout hole 6A. And the side cover piece 11 and the side cover piece 13 are closed in a substantially flat state.

  Further, when the capacity to be stored is medium, as shown in FIG. 4B, the end cover piece 14 and the side cover piece 13 are raised upward, the fold line H and the fold line G are folded into a mountain shape, and the insertion piece 7 is submerged in the cutout hole 6A, and the degree thereof becomes shallower than that in the case where the aforementioned capacity is minimum. The crease K is located substantially at the center of the crease L. When viewed as a whole, the state shown in FIG. 5 is obtained, and the interval W between the side lid piece 11 and the side lid piece 13 is considerably opened.

  Furthermore, when the capacity to be stored increases and is about the maximum, as shown in FIG. 4 (c), the end cover piece 14 and the side cover piece 13 are raised upward and the fold line H and the fold line G are folded in a mountain shape, The insertion piece 7 is located in the innermost part of the cutout hole 6A. When viewed as a whole, the state shown in FIG. 6 is obtained, and the distance W between the side lid piece 11 and the side lid piece 13 is greatly opened.

  In the above embodiment, in order to make the contents of the invention easier to understand, the dimensions of each part of the corrugated cardboard case are shown and described. However, the present invention is not limited to this.

A, B, C Fold D, E, F Fold G, H, J Fold K, L, M Fold P, Q, R Fold S, T Fold a, b, c Cut d, e Cut 100 Corrugated cardboard 200 Corrugated cardboard case 5 Tongue piece 6A Cutout hole 6B Locking part 6 Holding piece 7 Insertion piece 7a Head part 7b Jaw part 10 Lid part 11, 13 Side lid piece 12, 14 End lid piece 111, 112 Lid piece 121, 122 Lid piece 131 , 132 Lid surface piece 141, 142 Lid surface piece 20 Peripheral wall portion 21, 23 Side wall 22, 24 End wall 25 Adhesive margin piece 30 Bottom portion 31, 33 Side bottom piece 32, 34 End bottom piece 41, 43 Side lid piece 42, 44 End lid Piece 44a main lid piece 44b lid lid piece 45 locking piece 45a locking groove 45b locking groove 46 cover 47 corner 51, 53 side lid pieces 52, 54 end lid piece 52A cutout hole 62 guide part 70 engaging piece 73 jaw Part

Claims (1)

A pair of symmetrical side cover pieces (11, 13) and end cover pieces (12, 14 ) connected to the upper ends of the side walls (21, 23) and the end walls (22, 24) via fold lines (A), respectively. the) and, by engaging with each other, in a single cardboard cases raised folded into a box-like corrugated cardboard which is to be closed following the heaped in the form of a housing the fruits or vegetables, in the side lid piece (11, 13) Are provided with 45-degree folds (G) from both ends of the fold (A) toward the center, and the cover surface pieces (112, 132) outside the fold (G) are the inner cover surface pieces (111). 131) and is provided with an insertion piece (7) at the upper end, and the end cover pieces (12, 14) are provided with a 45-degree fold (from the both ends of the fold (A) toward the center ( H) are respectively provided, the inside of the lid surface pieces from folds (H) (121,14 ) To the difference Komihen (7) is cut hole to be fitted (6A) is provided, said difference Komihen (7) is provided at the lower end provided with an oval head (7a) jaw and (7b) The cut-out hole (6A) can be folded inward from the fold line (K) formed, while the cut-out hole (6A) has parallel longitudinal fold lines (M) and fold lines (L ) Is bent inward to form a rectangular tongue piece (5) and a vertical elliptical presser piece (6).
The length of the fold line (L) of the cutout hole (6A) is set so that the insertion piece (7A ) can move in the cutout hole (6A) according to the amount of the stored item. ) A cardboard case characterized by being formed larger inward than the length of the crease (K) provided at the lower end .

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