JP6084809B2 - Container structure - Google Patents

Description

  The present invention relates to a container structure which is generated from a sheet material through a punching process and a box making process, and is three-dimensionalized by bending based on a bending line (ruled line) applied by the punching process to be a container.

  A container, generally called a paper container, composed of a sheet material such as paperboard is widely used for packaging various articles. Such a container is formed by three-dimensionalizing a planar container structure, and the container structure is a product that performs predetermined folding and adhesion to a sheet blank obtained by punching the sheet material. Generated by making a box.

  The main problem to be solved by the present invention is that a container structure constituting this type of container can be more rationally generated from the sheet material and can be three-dimensionally (contained) more easily and appropriately. It is in the point to make.

In order to achieve the above object, in the present invention, the container structure is divided into a central folding line along the left-right direction that bisects the sheet material in the front-rear direction,
A front folding line applied along the central folding line in front of the central folding line;
A rear folding line applied along the central folding line behind the central folding line;
A left first folding line along the front-rear direction that separates the left end of the sheet material;
A left-side second folding line that is outside the left-side first folding line and bisects at least a portion of the left end portion into left and right;
A right first folding line along the front-rear direction that separates the right end of the sheet material;
A right-side second folding line that is outside the right-side first folding line and bisects at least a part of the right end portion to the left and right;
Front left fold line connecting the center fold line and the left second fold line, and the front fold line and the left first fold line at the front of the center fold line. When,
For rear left folding that connects the center folding line and the left second folding line at the rear of the center folding line and the rear folding line and the left first folding line at the intersection Lines and,
Front right fold line connecting the center fold line with the right second fold line and the front fold line and the right first fold line at the front of the center fold line. When,
For rear right folding that connects the location where the center folding line and the right second folding line intersect with the location where the rear folding line and the right first folding line intersect at the rear of the center folding line With a line,
Fold the left end of the left first folding line, and fold the right end of the right first folding line, and fold the center folding line and sandwich the front side and the rear side, Furthermore, the container structure formed by adhering the overlapped left end portions on the outside of the left second bending line, and adhering the overlapped right end portions on the outside of the right second bending line,
A three-dimensional structure in which a portion other than the bonding portion in the left end portion and the right end portion of the container structure is a thickness side container side surface, and a portion between the front folding line and the rear folding line is a container bottom surface. As well as
In the three-dimensionalization, an auxiliary folding line for bending the lower end side of the lower end side so that the lower end of the left end portion and the right end portion does not hit the bottom surface of the container in the container is applied to the bonding portion. .

  The sheet blank that is the basis of the container structure according to the present invention can be punched out of the sheet material with little waste, and boxing of the sheet blank can be easily performed by an automatic machine. Moreover, the container structure obtained by such box making can be easily and appropriately three-dimensionalized (contained).

FIG. 1 is a plan view of a sheet blank serving as a base of a container structure according to an embodiment of the present invention. FIG. 2 is a perspective view of the container structure. FIG. 3 is a perspective view of a container formed by three-dimensionalizing the container structure. FIG. 4 is a fragmentary perspective view showing a state in the middle of making the container structure three-dimensional, and shows the left side thereof. FIG. 5 is a fragmentary perspective view showing a state in the middle of making the container structure three-dimensional, and shows the left side as viewed from the left side of FIG. FIG. 6 is a longitudinal sectional view showing a state in the middle of the three-dimensionalization of the container structure, and shows the left side as viewed from the inside. FIG. 7 is a cross-sectional view showing a state in which the container structure is being three-dimensionalized, and shows the left side as viewed from above. FIG. 8 is a fragmentary perspective view of the container structure after the three-dimensionalization, showing the left side thereof. FIG. 9 is a cross-sectional view of the container structure after the three-dimensionalization, and shows the left side as viewed from above. FIG. 10 is a fragmentary perspective view of the container structure after the three-dimensionalization, showing the left side thereof.

  A typical embodiment of the present invention will be described below with reference to FIGS. The container structure B according to this embodiment is produced from a sheet material such as paperboard, corrugated cardboard, and plastic sheet through a punching process and a box making process, and is used for bending performed by the punching process. The container C is three-dimensionalized by bending based on a line (ruled line). The sheet blank A, which is the basis of the container structure B according to this embodiment, can be punched out of the sheet material with little waste, and boxing for the sheet blank A can be easily performed by an automatic machine. Moreover, the container structure B obtained by the box making can be three-dimensionally (contained) easily and appropriately.

  FIG. 1 shows a sheet blank A (a punched sheet material) that is the basis of the container structure B. The sheet blank A has a substantially rectangular main body 1 and is connected to a front side along the left-right direction on the front side (lower side in FIG. 1) of the main body 1 via a folding line 2. 3 and a rear flap 5 connected to a rear side along the left-right direction on the rear side (upper side in FIG. 1) of the main body 1 via a folding line 4. In the figure, reference numeral 5 a denotes a zipper portion formed by two rows of cut lines applied to the rear flap 5.

The main part 1 of the sheet blank A is provided with the following folding lines 6 to 16 by the punching process. Based on a part of these folding lines 6 to 16, folding is performed in the box making process to generate a container structure B from the sheet blank A (FIG. 2). The container structure B is three-dimensionalized into a container C through the based bending. (FIG. 3) These folding lines 6 to 16 are typically composed of streaks applied to the sheet material by the punching process, but can also be composed of a plurality of cut lines. A part of the slit 6a may be provided.
(1) Center folding line 6
(2) Front bending line 7
(3) Rear folding line 8
(4) Left first folding line 9
(5) Left second folding line 10
(6) Right first folding line 11
(7) Right second folding line 12
(8) Front left bending line 13
(9) Rear left bending line 14
(10) Front right folding line 15
(11) Rear right folding line 16

 The center folding line 6 is a folding line along the left-right direction that bisects the main body 1 in the front-rear direction. The center folding line 6 is provided along a virtual straight line (not shown) that connects the approximate middle of the left side 1a of the main body 1 and the approximate middle of the right side 1b. In the illustrated example, a part of the center folding line 6 is constituted by a slit 6a along such a virtual straight line. More specifically, a portion of the center folding line 6 positioned between the left first folding line 9 and the left second folding line 10, and the right first folding line 11 and the second right folding line 6. The portion located between the bending line 12 is constituted by the slit 6a. The slit 6a functions so as not to cause wrinkles when the sheet blank A is boxed in the container structure B.

  The front folding line 7 is provided along the central folding line 6 in front of the central folding line 6. The front folding line 7 is provided so as to be parallel to the central folding line 6 with a gap between the front folding line 7 and the central folding line 6. The front folding line 7 is provided between the left second folding line 10 and the right second folding line 12.

  The rear folding line 8 is provided along the central folding line 6 behind the central folding line 6. The rear folding line 8 is provided so as to be parallel to the central folding line 6 with a gap between the rear folding line 8 and the central folding line 6. Further, the rear bending line 8 is provided between the left second bending line 10 and the right second bending line 12.

  The distance between the front folding line 7 and the central folding line 6 is substantially equal to the distance between the rear folding line 8 and the central folding line 6. Then, a portion between the left first folding line 9 and the right first folding line 11 and between the front folding line 7 and the rear folding line 8 is the container by the three-dimensionalization. It becomes C container bottom face Ca. Further, a portion between the left first folding line 9 and the right first folding line 11 between the front folding line 7 and the front side of the main body 1 is formed by the three-dimensionalization. It becomes the container front side surface Cb of the said container C. As shown in FIG. Further, a portion between the left first folding line 9 and the right first folding line 11 and between the rear folding line 8 and the rear side of the main body 1 is formed by the three-dimensionalization. The container C has a container rear side surface Cc.

  The left first folding line 9 is a folding line along the front-rear direction that separates the left end 17 of the main body 1 from the remaining portion. The left folding line is parallel to the left side 1 a of the main body 1.

  The left second bending line 10 is outside the left first bending line 9 and bisects the left end 17 into left and right. The left second folding line 10 is provided so as to be parallel to the left first folding line 9 with a space between the left first folding line 9 and the left first folding line 9. In the illustrated example, the left second bending line 10 is provided so as to bisect the left end portion 17 in the left-right direction across the front-rear direction. If it is applied to the front, the container structure B can be three-dimensionalized even if it is not behind the center folding line 6, and the left second folding line 10 is behind the center folding line 6. If applied, the container structure B can be three-dimensionalized even if it is not in front of the center folding line 6.

  The right first folding line 11 is a folding line along the front-rear direction that separates the right end 18 of the main body 1 from the remaining portion. The right first bending line 11 is parallel to the right side 1 b of the main body 1.

  The right second bending line 12 is outside the right first bending line 11 and bisects the right end 18 into left and right. The right second folding line 12 is provided so as to be parallel to the right first folding line 11 with a space between the right first folding line 11 and the right first folding line 11. In the illustrated example, the right second folding line 12 is provided so as to bisect the right end portion 18 in the left-right direction across the front-rear direction. If it is applied to the front, the container structure B can be three-dimensionalized even if it is not behind the center folding line 6, and the right second folding line 12 is behind the center folding line 6. If applied, the container structure B can be three-dimensionalized even if it is not in front of the center folding line 6.

  The distance between the left first folding line 9 and the left second folding line 10 and the distance between the right first folding line 11 and the right second folding line 12 are the front folding line 7. And the distance between the center folding line 6 and the distance between the rear folding line 8 and the center folding line 6 are substantially equal. And the location between the left first bending line 9 and the left second bending line 10 becomes the thickness side container side surface Cd on the left side of the container C by the three-dimensionalization. Further, a portion between the right first folding line 11 and the right second folding line 12 becomes a thickness side container side surface Cd on the right side of the container C by the three-dimensionalization.

  The front left folding line 13 is located in front of the central folding line 6 where the central folding line 6 and the left second folding line 10 intersect, and the front folding line 7 and the left first folding line. 9 and the place where 9 intersects.

  The rear left folding line 14 is located behind the central folding line 6 where the central folding line 6 and the left second folding line 10 intersect, and the rear folding line 8 and the left first folding line. The point where the line 9 intersects is connected.

  The front side right folding line 15 is located in front of the central folding line 6 where the central folding line 6 and the right second folding line 12 intersect, the front folding line 7 and the right first folding line. 11 and the place where it intersects.

  The rear right folding line 16 is located behind the central folding line 6 where the central folding line 6 and the right second folding line 12 intersect, and the rear folding line 8 and the right first folding line. The point where the line 11 intersects is connected.

  The front left folding line 13 and the rear left folding line 14 are line symmetric with the central folding line 6 as the axis of symmetry. Further, the front right folding line 15 and the rear right folding line 16 are symmetrical with respect to the central folding line 6 as an axis of symmetry.

  The sheet blank A having the above-described configuration is folded at the left end portion 17 at the left first folding line 9, and at the right first folding line 11, the right end portion 18 is folded, and the central folding line 6 is folded. The front side and the rear side sandwiched between the front end and the rear side are overlapped, and the overlapped left end portions 17 are bonded to each other in the front-rear direction outside the left second bending line 10, and the overlapped right end The container constituting body B is constituted by a box-making process in which the portions 18 are bonded to each other in the front-rear direction on the outside of the right second bending line 12. (Figure 2)

  In the state before the three-dimensionalization, a portion of the container bottom surface Ca that is positioned between the front folding line 7 and the center folding line 6 is located on the same plane as the container front side surface Cb and is a container structure B. The portion of the container bottom surface Ca that is located between the rear folding line 8 and the central folding line 6 is located on the same plane as the container rear side surface Cc, and the rear surface of the container structure B is formed. The left end portion 17 and the right end portion 18 are folded in the front and back and overlapped with each other so as to be sandwiched between the front surface and the rear surface of the container structure B. (Figure 2)

  And since this container structure B is based on the sheet blank A comprised as mentioned above, each location other than this adhesion location in the left end part 17 and the right end part 18 of this container structure B is each thickness. It is possible to form a three-dimensional structure having a side surface Cd and a portion between the front folding line 7 and the rear folding line 8 as a container bottom surface Ca.

That is, (1) a portion of the container bottom surface Ca that is positioned between the front folding line 7 and the center folding line 6 and a space between the rear folding line 8 and the center folding line 6 of the container bottom surface Ca. Unfold at the center folding line 6 so that the part located on the same plane is the same surface,
(2) Folding is performed at the front folding line 7 so that the container bottom surface Ca and the container front side surface Cb form a right angle, and the rear folding line so that the container bottom surface Ca and the container rear side surface Cc form a right angle. Fold it at 8 and
(3) The lower front side (substantially square region 19) of the left end portion 17 surrounded by the front folding line 7, the central folding line 6, the left first folding line 9 and the left second folding line 10. In the state of the sheet blank A, the front left-side folding line 13 is folded so that the portion 19a located outside the front left-side folding line 13 is overlapped with the portion 19b located inside. Give rise to
(4) The lower rear side (substantially square region 20) of the left end 17 surrounded by the rear folding line 8, the central folding line 6, the left first folding line 9 and the left second folding line 10. Then, in the state of the sheet blank A, the rear left folding line 14 is overlapped with the portion 20a positioned outside the rear left folding line 14 on the inner portion 20b. Causes the fold to
(5) The lower front side (substantially square region 21) of the right end 18 surrounded by the front folding line 7, the central folding line 6, the right first folding line 11 and the right second folding line 12. In the state of the sheet blank A, the front side right folding line 15 is folded so that the portion 21a located outside the front side right folding line 15 is overlapped on the portion 21b located inside. Give rise to
(6) The lower rear side (substantially square region 22) of the right end 18 surrounded by the rear folding line 8, the central folding line 6, the right first folding line 11 and the right second folding line 12. Thus, in the state of the sheet blank A, the rear side right folding line 16 is overlapped with the part 22a positioned outside the rear side right folding line 16 on the inner part 22b. Causes the fold to
(7) The first left-hand side bend so that the portions other than the adhesion portion in the left end portion 17 are perpendicular to the container bottom surface Ca, the container front side surface Cb, and the container rear side surface Cc by the folding of the above (3) and (4). Loosen the folding of the wire 9 and cause the left second folding wire 10 to fold,
(8) The first right-hand side bend so that the portions other than the bonded portion in the right end portion 18 are perpendicular to the container bottom surface Ca, the container front side surface Cb, and the container rear side surface Cc by the folding of the above (5) and (6). By loosening the folding of the wire 11 and causing the right second folding wire 12 to fold,
The container structure B is three-dimensionalized to become a container C.

  In this embodiment, the lower end side of the left end portion 17 and the right end portion 18 does not abut on the container bottom surface Ca in the container C in the three-dimensionalization at the bonding portion. An auxiliary bending line for bending is provided.

  In the illustrated example, on the outside of the left second folding line 10 at the left end portion 17, a front left auxiliary folding line 23 that continues to the front side folding line 7 and reaches the left side 1 a of the main body 1, and a rear folding line. A rear left auxiliary bending line 24 that extends to the left side 1a of the main body 1 continuously from the line 8 is provided. The front left auxiliary folding line 23 and the rear left auxiliary folding line 24 are symmetrical with respect to the central folding line 6 as an axis of symmetry.

  Further, on the outer side of the right second folding line 12 at the right end portion 18, a front right auxiliary folding line 27 that continues to the front side folding line 7 and reaches the right side 1 b of the main body 1, and a rear folding line 8. And a rear right auxiliary folding line 28 which reaches the right side 1b of the main body 1 continuously. The front right auxiliary folding line 27 and the rear right auxiliary folding line 28 are symmetrical with respect to the central folding line 6 as an axis of symmetry.

  By this auxiliary folding line 23, 24, 27, 28, a location located below the auxiliary folding line 23, 24, 27, 28 at the bonding location of the left end portion 17 and the right end portion 18 is changed to this location. Can be folded in the container C so as to be parallel to the container bottom surface Ca, whereby the container structure B can be appropriately three-dimensionalized. Only by the auxiliary folding lines 23, 24, 27, 28, the portions located below the auxiliary folding lines 23, 24, 27, 28 at the bonding positions of the left end portion 17 and the right end portion 18 are folded. In this case, the portion located above the auxiliary folding lines 23, 24, 27, 28 in the bonding portion of the left end portion 17 and the right end portion 18 is parallel to the thickness side container side surface Cd. It is folded at the left second folding line 10 and the right second folding line 12. (Fig. 3, Fig. 10)

  In this embodiment, on the outside of the left second bending line 10 at the left end portion 17, an additional front left extending from the left end of the front bending line 7 diagonally forward to the left side 1 a of the main body 1. A side auxiliary folding line 25 and an additional rear left side auxiliary folding line 26 extending diagonally rearward from the left end of the rear folding line 8 and reaching the left side 1a of the main body 1 are provided. The additional front left auxiliary folding line 25 and the additional rear left auxiliary folding line 26 are symmetrical with respect to the central folding line 6 as an axis of symmetry.

  Further, on the outer side of the right second folding line 12 at the right end 18, an additional front right auxiliary folding line 29 extending obliquely forward from the right end of the front folding line 7 and reaching the right side 1 b of the main body 1 is provided. An additional rear right auxiliary folding line 30 extending diagonally rearward from the right end of the rear folding line 8 and reaching the right side 1b of the main body 1 is provided. The additional front right side auxiliary folding line 29 and the additional rear side right auxiliary folding line 30 are line symmetric with the central folding line 6 as the axis of symmetry.

  Thereby, in this embodiment, the additional auxiliary folding lines 25, 26, 29, at the bonding positions of the left end portion 17 and the right end portion 18, by the additional auxiliary folding lines 25, 26, 29, 30. , 30 can be folded at two locations of the auxiliary folding lines 23, 24, 27, 28 and the additional auxiliary folding lines 25, 26, 29, 30, as shown in FIG. As shown in the figure, the part located below the auxiliary folding lines 23, 24, 27, and 28 in the bonding part of the left end part 17 and the right end part 18 is parallel to the container bottom surface Ca in the container C. Even if it does not fold as it is, appropriate three-dimensionalization of the container structure B is possible. (Fig. 8, Fig. 9)

  In the example shown in the figure, the container C formed by three-dimensionalizing the container structure B folds the rear flap 5 after folding the front flap 3, and folds the portion of the rear flap 5 ahead of the zipper portion 5 a. By adhering to the outer surface of the container front side surface Cb, the upper opening is closed. The container C is opened with one touch by breaking the rear flap 5 using the zipper portion 5a.

B Container structure Ca Container bottom 6 Center folding line 9 Left first folding line 10 Left second folding line 11 Right first folding line 12 Right second folding line 17 Left end 18 Right end 23, 24, 27, 28 Auxiliary bending line

Claims (1)

A central folding line along the left-right direction that bisects the sheet material;
A front folding line applied along the central folding line in front of the central folding line;
A rear folding line applied along the central folding line behind the central folding line;
A left first folding line along the front-rear direction that separates the left end of the sheet material;
A left-side second folding line that is outside the left-side first folding line and bisects at least a portion of the left end portion into left and right;
A right first folding line along the front-rear direction that separates the right end of the sheet material;
A right-side second folding line that is outside the right-side first folding line and bisects at least a part of the right end portion to the left and right;
Front left fold line connecting the center fold line and the left second fold line, and the front fold line and the left first fold line at the front of the center fold line. When,
For rear left folding that connects the center folding line and the left second folding line at the rear of the center folding line and the rear folding line and the left first folding line at the intersection Lines and,
Front right fold line connecting the center fold line with the right second fold line and the front fold line and the right first fold line at the front of the center fold line. When,
For rear right folding that connects the location where the center folding line and the right second folding line intersect with the location where the rear folding line and the right first folding line intersect at the rear of the center folding line With a line,
Fold the left end of the left first folding line, and fold the right end of the right first folding line, and fold the center folding line and sandwich the front side and the rear side, Furthermore, the container structure formed by adhering the overlapped left end portions on the outside of the left second bending line, and adhering the overlapped right end portions on the outside of the right second bending line,
A three-dimensional structure in which a portion other than the bonding portion in the left end portion and the right end portion of the container structure is a thickness side container side surface, and a portion between the front folding line and the rear folding line is a container bottom surface. As well as
In the three-dimensionalization, an auxiliary folding line for bending the lower end side of the adhesive portion is provided so that the lower ends of the left end portion and the right end portion do not hit the bottom surface of the container in the container. A container structure.

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