JP2013079080A - Wound body storage box, and storage box having wound body stored therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wound body storage box of which the breakage is suppressed, and the storage box having the wound body stored therein.SOLUTION: The wound body storage box 1 includes a body 10 for storing the wound body, and a lid 20 having side lid pieces 25. In the side lid piece 25, a cut corner edge 25t formed by removing a corner around a lower rear intersection point A from a basic rectangle is formed in an area interposed between an innermost borderline INL and an outermost borderline ELX. The innermost borderline INL is a virtual straight line interconnecting an intersection point 25b and an intersection point 25c, and the outermost border line EXL is a virtual line interconnecting a point E moved from the lower rear intersection point A to a top side 25q by 20% of the length of a front side 25p and a point F moved from the lower rear intersection point A to the front side 25p by 20% of the length of the top side 25q. Thus, the area of a portion where floating of the side lid piece 25 becomes large is reduced to reduce catching of the side lid piece 25, and breakage of the wound body storage box 1 is suppressed. The storage box storing the wound body includes the wound body and the wound body storage box 1.

Description

  The present invention relates to a wound body storage box and a wound body-containing storage box, and more particularly to a wound body storage box and a wound body-containing storage box that suppress the occurrence of breakage.

  Wrap film for food that wraps dishes such as ingredients, dishes, dishes, etc. with food, etc. that are frequently used around the kitchen, and wrapping or laying under food ingredients for draining or draining during cooking There is kitchen paper. In general, long objects such as wrap film and kitchen paper are wound in a roll and then sold in a long rectangular box. As a storage box, a box body that opens one side for accommodating the wound body, a lid plate that is pivotally connected to the rear plate of the box body and closes the opened side, and a lid plate that is connected to the cover plate A lid piece covering the top of the front plate of the box body that faces the rear plate when the lid is closed, and a side plate of the box body that is connected to the lid plate and is orthogonal to the rear plate and the front plate when the lid plate is closed. A side cover piece that covers the upper part, the side cover piece is overlapped and joined on a joining piece that is connected perpendicularly to the lid cover piece, and the side plate is connected to the upper end of the side cover piece and directed outward and downward from the box body. There is a structure in which the flap piece is bent and the flap piece is engaged with the joining piece to generate a snap sound when the cover plate is closed (see, for example, Patent Document 1). ).

JP 2009-035301 A (FIG. 1 etc.)

  In general, the storage box as described above is assembled by bending a single sheet of paper cut out. When assembled, the side lid piece is disposed on the outermost side, has a relatively small area, and is joined to a joining piece connected to the lid cover piece in a cantilevered manner. The remote end is easy to open to the outside, and on this open part there is a stepped part that is created by overlaying the cover of the cardboard box for packing during transportation, a shelf or other storage box when displayed in the store There was a case where the storage box was damaged due to being caught.

  In view of the above-described problems, an object of the present invention is to provide a wound body storage box and a wound body containing storage box that suppress the occurrence of breakage.

  In order to achieve the above object, the wound body storage box according to the first aspect of the present invention has a wound body 91r around which a long object 91f is wound, as shown in FIGS. 1 and 2A, for example. Is a main body portion 10 formed in a rectangular parallelepiped shape, and an opening surface in which one of four rectangular surfaces parallel to the axis 91a of the wound body 91r is opened when the wound body 91r is received. A rear plate 14 forming one of two rectangular surfaces orthogonal to the opening surface 10h, a front plate 12 forming a rectangular surface facing the rear plate 14, and four rectangular surfaces. A main body 10 having a side plate 15 that forms a rectangular parallelepiped end surface; a lid portion 20 that is rotatably connected to a rear plate end side 18 that is an end side that intersects the opening surface 10h of the rear plate 14; When the lid 20 is closed, the top plate 21 that covers the opening surface 10h, A lid portion 20 having a lid cover piece 22 connected to the plate 21 and covering a part of the front plate 12, and a side cover piece 25 connected to the top plate 21 and covering a part of the side plate 15; The lid piece 25 is formed of a basic shape rectangle having a top side 25q connected to the top plate 21 and a front side 25p adjacent to the lid piece 22, a lower side 25s facing the top side 25q, and a front side 25p. Formed by removing corners around the lower rear intersection A where the opposite rear side 25r intersects; in the basic shape rectangle, the intersection 25b between the top side 25q and the rear side 25r, the front side 25p and the lower side 25s A virtual straight line connecting the intersection point 25c and the intersection point 25c is defined as an innermost boundary line INL, and a point E moved by 20% of the length of the front side 25p from the lower rear intersection point A to the top side 25q side along the rear side 25r, The length 2 of the top side 25q from the back intersection point A to the front side 25p along the lower side 25s. When the imaginary straight line connecting the point F that has been moved to the outermost boundary line EXL is the outermost boundary line EXL, the cut edge 25t that constitutes the outline of the portion from which the corners around the lower rear intersection A are removed is the innermost boundary line INL. And the outermost boundary line EXL.

  If comprised in this way, the area of the part which the floating of a side cover piece becomes large will decrease, and the catch of a side cover piece will be reduced, and generation | occurrence | production of the failure | damage of a wound body storage box can be suppressed.

  Typically, for example, as shown in FIG. 1, the side cover piece 25 is an overlapping line between the top plate 21 and the side cover piece 25 by being overlapped and bonded to the joining piece 22 j connected to the lid cover piece 22. By providing the joining piece 22j outside the joining piece 22j so that the joining piece 22j does not contact the top side 25q, a recess 25d is formed between the top side 25q and the joining piece 22j; A protrusion 15p that is provided on the side plate edge 15s that is an edge that intersects the opening surface 10h and protrudes to the outside of the main body 10, and has a protrusion 15p that fits into the recess 25d when the lid 20 is closed. .

  Under the situation where the side plate edge is provided with a convex portion, the convex portion tends to open the side lid piece outward because the force acts to open the side lid piece outward. Even under circumstances, the occurrence of breakage due to catching of the side lid piece can be reduced by forming the cut edge in the region sandwiched between the innermost boundary line and the outermost boundary line.

  Moreover, the wound body storage box which concerns on the 2nd aspect of this invention is a winding body storage box which concerns on the said 1st aspect of this invention, for example, as shown in FIG.2 (B). A convex curve is formed on the lower rear intersection A side.

  If comprised in this way, the catch of the corner | angular part where a cut edge | side and a back side and / or a lower side cross can be reduced.

  Further, the wound body storage box according to the third aspect of the present invention is, for example, as shown in FIG. 1, in the wound body storage box 1 according to the first aspect or the second aspect of the present invention. The piece 22 is orthogonal to the bent side 21f as the front end side 22t facing the bent side 21f connected to the top plate 21 moves from the middle point of the front end side 22t to the end side of the front end side 22t. The distance between the bent side 21f and the tip side 22t in the direction is shortened.

  If comprised in this way, the selection range of the cutting method of a long thing can be increased. In addition, like the wound body storage box according to the third aspect of the present invention, the distance between the bent side and the tip side in the direction perpendicular to the bent side of the portion adjacent to the side plate of the lid cover piece is short. As the distance between the joining piece and the side lid piece in that direction becomes shorter, the side lid piece tends to open outward, but even under such circumstances, the cut edge is the outermost boundary line and the outermost borderline. By being formed in a region sandwiched between the boundary lines, it is possible to reduce the occurrence of breakage due to catching of the side lid pieces.

  In addition, the container with a wound body according to the fourth aspect of the present invention includes, for example, as shown in FIG. 1, a wound body 91r wound with a long article; The winding body storage box 1 which concerns on any one aspect of 3 aspects is provided.

  If comprised in this way, it will become an accommodation box with a wound body with few generation | occurrence | production of damage.

  According to the present invention, the floating of the side lid piece is reduced, and the occurrence of breakage due to the catch of the side lid piece can be reduced.

1 is a perspective view of a carton with a wrap including a wrap carton according to an embodiment of the present invention. (A) is a side view of a wrap carton according to an embodiment of the present invention, (B) is a partial side view of a wrap carton according to a modification of the embodiment of the present invention. (A)-(C) are side views of the wrap carton which concerns on the Example of this invention, (D) is a side view of the wrap carton which concerns on a comparative example. It is a figure which shows the test result of the various lap cartons in an Example.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or similar members are denoted by the same or similar reference numerals, and redundant description is omitted.

  First, referring to FIG. 1, a wrap carton 1 as a wound body storage box and a wrapped body containing a wrap roll 91r as a wound body in the wrap carton 1 according to the embodiment of the present invention. A carton 100 with a wrap as a box will be described. FIG. 1 is a perspective view of a carton 100 with a wrap. FIG. 1 shows an open state. The wrap roll 91r is formed by rolling a wrap film 91f as a thin thin film around a shaft 91a around a cylindrical core. In the following description, when the appearance shapes of the wrap roll 91r and the wrap film 91f are not distinguished, they are collectively referred to as “wrap 91”. In this embodiment, the wrap film 91f is formed to have a thickness of 5 to 20 μm using polyvinylidene chloride as a raw material. The wrap carton 1 includes a main body portion 10 that accommodates the wrap roll 91r and a lid portion 20 that is connected to the main body portion 10.

  The main body 10 is a box in which one of the elongated surfaces is an opening surface 10h with respect to a rectangular parallelepiped having a size capable of accommodating an unused wrap roll 91r. The size of the main body 10 is formed as small as possible while a gap that does not prevent the accommodated unused lap roll 91r from rotating around the axis 91a is formed, and the width and height are approximately 30 each. It is preferable that the length is approximately within a range of 200 to 400 mm. In this embodiment, the width is 44 mm, the height is 44 mm, and the length is 310 mm. The main body 10 has a front plate 12, a bottom plate 13, and a rear plate 14 that form side surfaces of the rectangular parallelepiped in cooperation with the opening surface 10h, and two side plates 15 that form end surfaces of the rectangular parallelepiped. The bottom plate 13 faces the opening surface 10h. The front plate 12 and the rear plate 14 are orthogonal to the opening surface 10 h and the bottom plate 13. The side plate 15 has a smaller area than each of the front plate 12, the bottom plate 13, and the rear plate 14 and is typically formed in a square shape, but may have a rectangular shape with different vertical and horizontal lengths. In the following description, the bottom plate 13 side may be described as the bottom and the opening surface 10h side as the top, with reference to the state where the bottom plate 13 is placed on a horizontal surface.

  A projection 15p as a convex portion formed by folding a small piece extending upward by about 3 mm outward is provided at the central portion of the side plate end side 15s, which is the upper end side of the side plate 15. The protrusion 15p is provided at the upper end of each of the two side plates 15. Further, the main body 10 has a sub-plate 16 that is continuous with the front plate 12 at the front plate edge 19. The front plate edge 19 is an edge of the front plate 12 where the front plate 12 and the opening surface 10h intersect. The sub-plate 16 is substantially the same size as the front plate 12 but is not in contact with the bottom plate 13 and is provided inside the main body 10 with respect to the front plate 12. The sub-plate 16 is bonded to the front plate 12 at the end on the bottom plate 13 side along the longitudinal direction.

  The lid portion 20 is a member that closes the opening surface 10 h of the main body portion 10. The lid portion 20 includes a lid plate 21 as a top plate, a lid lid piece 22, a cutting blade 23, and a side lid piece 25. The lid plate 21 is a rectangular flat plate member having substantially the same size as the opening surface 10h, and the lid plate 21 can be formed into a rectangular parallelepiped with the main body portion 10 closed by fitting the lid plate 21 to the opening surface 10h. The lid plate 21 is substantially the same size as the opening surface 10h. The lid plate 21 is larger by the thickness of the lid lid piece 22 and the side lid piece 25, and a gap that does not hinder the opening and closing of the lid portion 20 is formed. It is meant to include cases where the degree is large. The lid plate 21 has one side in the longitudinal direction connected to the rear plate end side 18 of the main body 10. In other words, the main body 10 and the cover plate 21 are connected via the rear plate end side 18. The rear plate end side 18 is an end side of the rear plate 14 where the rear plate 14 and the opening surface 10 h intersect. The cover plate 21 is configured to be rotatable with respect to the main body 10 with the rear plate end side 18 as a rotation axis.

  The lid piece 22 is provided so as to be orthogonal to the lid plate 21 via the bent side 21f and to extend toward the bottom plate 13 when the lid portion 20 is closed. The lid piece 22 has a height (length in the short side direction of the rectangular front plate 12) at both ends in the direction in which the axis 91a of the wrap roll 91r extends (hereinafter referred to as “axis direction D”) is short of the front plate 12. About 1/2 of the length in the side direction and the height of the central portion in the axial direction D is about 3/4 of the length in the short side direction of the front plate 12. As the front end side 22t facing the bent side 21f moves from the center in the axial direction D to each end, the distance between the bent side 21f and the front end side 22t in the direction orthogonal to the axial direction D decreases. It is formed to become. With this configuration, the tip side 22t is formed in a V shape. When the lid portion 20 is closed, the lid cover piece 22 overlaps the outside of the front plate 12 along the front plate 12 and covers the upper portion of the front plate 12 in a pentagonal shape. A cutting blade 23 for cutting the wrap film 91f is attached to the distal end side 22t of the lid piece 22. The cutting blade 23 is provided in a V shape along the tip side 22t so that the cutting edge comes out of the tip side 22t.

  The side lid piece 25 is provided orthogonal to both the lid plate 21 and the lid lid piece 22. A total of two side lid pieces 25 are provided at both ends of the lid plate 21 (the lid lid piece 22). The side cover piece 25 is fixed to the joining piece 22j connected to the lid cover piece 22 with an adhesive. The joining piece 22j is smaller than the side lid piece 25 and is formed in a size included in the side lid piece 25. The joining piece 22j is disposed so that most of the joining piece 22j is parallel to the top side 25q, which is a line of intersection between the lid plate 21 and the side lid piece 25, with a gap. Thereby, a concave portion 25d is formed on the inner side of the side lid piece 25 between the joining piece 22j and the lid plate 21 (the top side 25q). When the lid portion 20 is closed, a protrusion 15p provided on the upper end of the side plate 15 is fitted into the recess 25d.

  Here, the configuration of the side lid piece 25 will be described in more detail with reference to FIG. The basic shape of the side cover piece 25 is such that the long side is the same length as the short side of the cover plate 21, and the short side is the height at the center of the lid piece 22 (from the V-shaped tip to the bent side 21f). It is formed in a rectangle having the same length as the shortest distance. The basic shape rectangle (hereinafter simply referred to as “basic rectangle”) includes the top side 25q, the rear side 25r which is the side on the rear plate 14, the lower side 25r which is the side on the bottom plate 13 side, It is a quadrangle whose outline is the front side 25p that is the side on the plate 12 side. On the basis of this basic rectangle, the side cover piece 25 has corners around the lower rear intersection point A where the extension line of the lower side 25s and the extension line of the rear side 25r intersect. In FIG. 2A, the removed corner of the basic rectangle is indicated by a two-dot chain line. In the following description, for the sake of convenience, the top side 25q, the rear side 25r, the lower side 25s, the front side, both in the case of targeting the basic rectangle and in the case of targeting the contour of the side lid piece 25 in which the basic rectangle is deformed. The same designation is used for the corresponding part of the side 25p (by this, the lower rear intersection A can be regarded as the point where the lower side 25s and the rear side 25r intersect). The side cover piece 25 has a cut edge 25t formed by removing a corner around the lower rear intersection point A. The cut edge 25t is a part of the outline of the side lid piece 25. The cut edges 25t are connected to the lower edge 25s and the rear edge 25r, respectively.

  The cut edge 25t is formed in a region sandwiched between the innermost boundary line INL and the outermost boundary line EXL. The innermost boundary line INL is a virtual straight line connecting the intersection 25b between the top side 25q and the rear side 25r and the intersection 25c between the front side 25p and the lower side 25s in the basic rectangle. The outermost boundary line EXL is a virtual straight line connecting the point E and the point F. Point E is a point in the basic rectangle that is moved 20% of the length of the rear side 25r on the rear side 25r from the lower rear intersection point A toward the intersection point 25b. Point F is a point in the basic rectangle that is moved 20% of the length of the lower side 25s on the lower side 25s from the lower rear intersection A toward the intersection 25c. The cut edge 25t has a cut edge one end 25e at a point where the extended line and the rear edge 25r intersect, and a cut edge other end 25f at a point where the extended line and the lower edge 25s intersect, The position is determined between 20% and 100% of the length of the rear side 25r with respect to the lower rear intersection point A, and the other side 25f of the cut edge is 20% of the length of the lower side 25s with respect to the lower rear intersection point A. It is configured to be positioned between ˜100%. Preferably, the cut edge one end 25e is positioned between 25% and 50% with respect to the length of the rear edge 25r, and the other edge 25f is cut with respect to the length of the lower edge 25s between the lower rear intersection A and 25% to 50%. It should be decided. In the present embodiment, the cut edge one end 25e and the cut edge other end 25f are both determined to be 50%, and the corners formed by the cut edge 25t, the rear edge 25r, and the lower edge 25s are chamfered (rounded). Is attached).

  The description of the configuration of the lap carton 1 will be continued with reference to FIG. In the present embodiment, the main body 10 and the lid 20 are formed by processing coated cardboard having a thickness of about 0.45 to 0.7 mm. In the present embodiment, for convenience of explanation, the main body 10 and the lid 20 are distinguished from the viewpoint of function. However, the main body 10 and the lid 20 are integrally formed by cutting out a single base paper and assembling it. Has been. The assembly of the wrap carton 1 and the production of the wrapped carton 100 are typically performed automatically by a carting machine. The side plates 15 and the like constituting the main body 10 and the side lid pieces 25 and the like constituting the lid 20 are formed by bending the cut base paper with a propeller at an appropriate time. The surface of the main body 10 and the lid 20 is subjected to a surface treatment after being printed with a design that causes consumers to purchase. At this time, OP varnish may be applied as a surface treatment. When OP varnish is applied, the slipping property is improved, so that the productivity at the time of molding in the cartoning machine can be improved.

  In the wrap carton 1, a flap 12 f is formed in the upper center of the front plate 12. In this embodiment, the length of the flap 12f in the axial direction D is the length of the front plate 12 (hereinafter simply referred to as the front plate 12 means the entire rectangular front plate 12 including the flap 12f and the like). The length in the height direction is about ½ of the length of the front plate 12. The flap 12f has a contour that extends from one of the points that divides the front plate edge 19 into approximately three equal parts to the other of the approximately three equal points while proceeding to the side of the side plate 15 that is farther from the bottom plate 13 side. Further, it is formed by cutting the surface of the front plate 12. The lower side of the flap 12f is formed in a waveform so that three convex portions are formed. The flap 12f is connected to the sub-plate 16 at the front plate edge 19 and is configured to be rotatable about the front plate edge 19 as a rotation axis. A holding portion 12fs is provided in a substantially centroid portion of the flap 12f. The holding part 12fs is formed by applying UV varnish. The UV varnish that forms the holding portion 12fs adheres to the wrap film 91f, but does not adhere paper, dust, or the like. The flap 12f is formed in a size that is covered with the lid lid piece 22 and does not appear on the outer surface when the lid 20 is closed. In addition, you may improve the rewinding prevention effect of the wrap film 91f by apply | coating UV varnish to the whole part of the front board 12 covered with the lid cover piece 22 when the cover part 20 is closed. In addition to applying UV varnish, the holding portion 12fs may be formed of a film, a label, or the like having a configuration to which the wrap film 91f adheres.

  With reference to FIG. 1 and FIG. 2 (A), the operation of the wrapped carton 100 will be described. The operation of the wrap carton 1 will be described as a part of the operation of the wrapping carton 100. A plurality of wrapped cartons 100 manufactured in a factory are packed in a cardboard box (not shown) for packing and transported to a retail store or the like. When a wrapping carton 100 is packed in a cardboard box at a factory, the cardboard box is usually inserted from the side plate 15 into the opening of the cardboard box, and then the lid of the cardboard box is folded to close the opening. When the lid of the cardboard box is folded, a step is generated at the portion where the lid is folded. The wrap carton 1 has a side cover piece 25 that is moved sideways by a restoring force after the base paper is folded when assembled and / or a force that the projection 15p provided on the side plate edge 15s opens outward. The plate 15 tends to open, and in particular, the opening of the rear side 25r and the lower side 25s that are not attached to the main body 10 due to the structure tends to be large.

  The side lid piece 25 that has become open from the side plate 15 is easily caught by a step formed in the overlapping portion of the lid of the cardboard box, and if it is caught, the side lid piece 25 is peeled off from the joining piece 22j, and the lap carton 1 In some cases, it may lead to damage. However, in the wrap carton 1, the side cover piece 25 has a cut edge 25t formed by removing corners around the lower rear intersection A of the basic rectangle as the innermost boundary line INL and the outermost boundary line EXL. Since it is formed in the sandwiched region, it is not caught by a step generated in the lid portion of the cardboard box, and damage to the lap carton 1 can be suppressed. In other words, the wrap carton 1 has improved resistance to breakage, that is, strength. Although the side cover piece 25 that has become open from the side plate 15 may be caught by other things in stores or the like, as described above, the wrap carton 1 has the lower side 25s of the side cover piece 25 and the lower side 25s. The corner where the rear side 25r intersects is hardly caught by other objects, and breakage can be suppressed.

  When using an unopened wrapped carton 100 in the hands of the consumer for the first time, it is connected to the tip side 22t of the lid cover piece 22 via a perforation (not shown) and is attached to the lower part of the front plate 12. The cut piece (not shown) is cut off at the perforation (not shown) while being peeled off from the front plate 12 and separated from the lid lid piece 22. By opening the wrap carton 1 in this way, the lid 20 can be rotated around the rear plate edge 18 with respect to the main body 10. When the lid 20 is opened in the opened carton 100 with a wrap, a wrap roll 91r is contained in the main body 10. The wrap roll 91r has a drawer seal (not shown) attached to the tip of the wrap film 91f, and the tip of the wrap film 91f is peeled from the wrap roll 91r by pulling out the drawer seal (not shown). The wrap film 91f can be pulled out easily.

  When using the wrap film 91f, hold the wrap carton 1 with one hand, pick the tip of the wrap film 91f with the other hand, pull out the wrap film 91f from the wrap roll 91r to the required length, and cut it with the cutting blade 23 To do. At this time, the lid portion 20 is closed with the wrap film 91f pulled out by a necessary length, the wrap film 91f is sandwiched between the front plate 12 and the lid cover piece 22, the centroid of the lid cover piece 22 is pressed with the thumb, and the cutting blade When the wrapping carton 100 is twisted about the axis 91a so that the center of the wrap film 91f is drawn into the drawn wrap film 91f, it is preferable that the wrap film 91f can be cut cleanly without being twisted. When the lid 20 is closed, a snapping sound is generated when the projection 15p provided on the side plate edge 15s falls into the recess 25d, so that it can be seen that the lid 20 is closed.

  Since the wrap film 91f sandwiched between the front plate 12 and the lid cover piece 22 after being cut is attached to the holding portion 12fs, it is prevented from being rewound onto the wrap roll 91r. In addition, when UV varnish is apply | coated to the whole part of the front board 12 covered with the lid cover piece 22 when the cover part 20 is closed, the rewinding prevention effect of the wrap film 91f will further increase. Further, when the wrap film 91f is used next time, when the lid portion 20 is opened, the flap 12f floats from the front plate 12, so that the tip of the wrap film 91f attached to the holding portion 12fs also floats from the front plate 12. It is easy to pick.

  In the above description, the cut edge 25t, which is a part of the outline of the side lid piece 25, is determined to be positioned at 50% of the length of the rear edge 25r in the basic rectangle with the lower rear intersection A as a reference. It is assumed that it is formed in a straight line connecting one end 25e and the other side 25f of the cut edge determined at a position of 50% of the length of the lower side 25s, but as in the wrap carton 1R shown in FIG. In addition, it may be formed in a curved shape (circular arc or elliptical arc) bulging (convex) toward the lower rear intersection A. If it does in this way, the contact area of the side cover piece 25 and the joining piece 22j can be enlarged. Even when the cut edge 25t is formed in a curved shape, the cut edge 25t is formed so as to be entirely within a region sandwiched between the innermost boundary line INL and the outermost boundary line EXL.

  EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited to these Examples. In the following description, when the configuration of the wrap carton 1 is referred to, FIG. 1 and FIG. In the examples shown below, the force when the side lid piece 25 was broken was measured by pulling up the cut edge 25t with a push-pull gauge for four types of lap cartons in which the position where the cut edge 25t was formed was changed. . The breakage of the side lid piece 25 was judged by the fact that the adhesion between the side lid piece 25 and the joining piece 22j was peeled off or that the joining piece 22j was separated from the lid lid piece 22 while being adhered to the side lid piece 25.

  FIG. 3 shows the side surfaces of various wrap cartons used in the test. 3A is a wrap carton 1A according to the first embodiment, FIG. 3B is a wrap carton 1B according to the second embodiment, and FIG. 3C is a wrap carton 1C according to the third embodiment. FIG. 3D shows a wrap carton 9 according to a comparative example. The wrap carton 1A is based on the lower rear intersection point A with respect to the length of the rear side 25r of the basic rectangle and the other side of the cut side 25f to the length of the lower side 25s of the basic rectangle. As a position of 33%, the cut edge 25tA is formed in a straight line. The wrap carton 1B is based on the lower rear intersection point A with respect to the length of the rear side 25r of the basic rectangle and the other side of the cut side 25f to the length of the lower side 25s of the basic rectangle. As a position of 66%, the cut edge 25tB is formed in a straight line. The wrap carton 1C has the cut edge one end 25e with respect to the length of the rear edge 25r in the basic rectangle and the cut edge other end 25f with respect to the length of the lower edge 25s in the basic rectangle with respect to the lower rear intersection A. The cut edge 25tC is formed as a straight line at the position of 100% (the cut edge 25t is on the outermost boundary line EXL). The wrap carton 9 has a cutting mode around the lower rear intersection A, in which the cut side 25t9 is a ¼ circular arc whose radius is 40% of the length of the rear side 25r in the basic rectangle. The entire cut edge 25t9 of the wrap carton 9 is outside the region sandwiched between the innermost boundary line INL and the outermost boundary line EXL. The test was performed five times for each wrap carton 1A, 1B, 1C, and 9.

  FIG. 4 shows the test results. The wrap carton 1A reached breakage with an average force of 1.42 kg. The wrap carton 1B reached breakage with an average force of 1.10 kg. The wrap carton 1C reached breakage with an average force of 1.09 kg. The wrap carton 9 reached breakage with an average force of 0.42 kg. As can be seen from the above test results, the wrap cartons 1A, 1B, and 1C having the side lid pieces 25 formed in the region where the cut edge 25t is sandwiched between the innermost boundary line INL and the outermost boundary line EXL are broken. Among them, the cut edge one end 25e is lower than the rear side 25r of the basic rectangle, and the cut edge other end 25f is lower to the lower side 25s of the basic rectangle. It was confirmed that the lap carton 1A having the cut edge 25t positioned between 25% and 50% with respect to A was more excellent in resistance to breakage.

DESCRIPTION OF SYMBOLS 1 Wrap carton 10 Main part 10h Opening surface 12 Front plate 13 Bottom plate 14 Rear plate 15 Side plate 15p Protrusion 15s Side plate edge 18 Rear plate edge 20 Lid 21 Lid 21f Bending side 22 Lid piece 22t Tip side 22j Joining Piece 25 Side cover piece 25d Recess 25p Front side 25q Top side 25r Rear side 25s Lower side 25t Cut side 91a Axis 91f Long body 91r Rolled body 100 Wrapped carton A Lower rear intersection EXL Innermost boundary line INL Outermost boundary line

Claims (4)

A main body formed in a rectangular parallelepiped shape for accommodating a wound body wound with a long object, and having four rectangular surfaces parallel to the axis of the wound body when the wound body is accommodated A rear plate that forms one of the two rectangular surfaces that are orthogonal to the opening surface, and a front plate that forms the rectangular surface that faces the rear plate. And a side plate that forms a rectangular parallelepiped end face at right angles to the four rectangular surfaces;
A lid portion rotatably connected to a rear plate end side that is an end side intersecting with the opening surface of the rear plate, the top plate covering the opening surface when the lid portion is closed; and A lid portion having a lid piece connected to the top plate and covering a part of the front plate, and a side cover piece connected to the top plate and covering a part of the side plate;
The side cover piece is formed from a basic shape rectangle having a top side connected to the top plate and a front side adjacent to the lid cover piece, a lower side facing the top side, and a front side. Formed by removing the corners around the lower rear intersection where the rear side intersects;
In the basic shape rectangle, an imaginary straight line connecting the intersection of the top side and the rear side and the intersection of the front side and the lower side is an innermost boundary line, and the rear side from the lower rear intersection 20% of the length of the front side along the lower side and 20% of the length of the top side along the lower side from the lower rear intersection to the front side When the imaginary straight line connecting the points is the outermost boundary line, the cut edges constituting the outline of the portion from which the corners around the lower rear intersection are removed are the innermost boundary line and the outermost boundary line. Formed in the area between
Winding box. The cut edge is formed in a convex curve on the lower rear intersection side;
The wound body storage box according to claim 1. The lid piece is in a direction orthogonal to the bent side as the tip side facing the bent side connected to the top plate moves from the middle point of the tip side to the end side of the tip side. Configured such that the distance between the bent side and the tip side in
The wound body storage box according to claim 1 or 2. A wound body wound with a long object;
A wound body storage box according to any one of claims 1 to 3;
Containment box with wound body.

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