JP2013063802A - Wound body storage box and storage box containing wound body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wound body storage box and a storage box containing the wound body, which are prevented from collapsing in the vicinities of corner parts.SOLUTION: The wound body storage box 1 includes: a body part 10 storing a wound body 91r; and a lid part 20 turnably connected to a rear plate end side 18 to cover an opening face 10h. Side lid pieces 25 are provided on outer sides of joint pieces 22j to form recessed parts 25d between top sides 25q and joint pieces 22j. A protrusion 15p is fitted into the recessed part 25d when the lid part 20 is closed. The joint piece 22j is bent such that an adjacent side 22ja adjacent to the recessed part 25d leads to a crossing of a folding side 21f with the top side 25q, to the top side 25q within a range of 3 mm from the crossing, or to a front side 25p. Thus, the vicinities of corner parts, where a top plate 21, overhead cover pieces 22 and side lid pieces 25 join together, can be reinforced with the joint pieces 22j, and thereby being prevented from collapsing in the vicinities of the corner parts. The storage box containing the wound body 100 includes the wound body 91r and the wound body storage box 1.

Description

  The present invention relates to a wound body storage box and a wound body containing box, and more particularly to a wound body storage box and a wound body containing box capable of suppressing crushing in the vicinity of a corner.

  Food wrap films that wrap food, dishes, or dishes such as dishes with each dish are widely used. In general, food plastic wrap films are sold by storing a long plastic film (rolled body) wound in a roll shape in a long rectangular parallelepiped container (container box). As a storage box, a box main body with one side opened to accommodate the wound body, a top plate that is pivotally connected to the rear wall of the box main body to close the open side, and a top plate connected to the top plate The front wall of the lid that covers the top of the front wall of the box body that faces the rear wall when the lid is closed, and the bottom wall of the box body that is connected to the top panel and is orthogonal to the rear wall and the front wall when the top panel is closed A top plate flap that covers the top of the flap, the top plate flap is overlapped and joined on the lid front wall flap connected perpendicularly to the front wall of the lid, and the bottom wall flap is connected to the upper end side of the box. There is an extension portion that is bent toward the outside lower side of the main body, and when the lid is closed, the extension portion engages with the lid front wall flap to generate a click sound. (For example, refer to Patent Document 1).

JP 2007-176599 A (paragraph 0023, FIG. 5, etc.)

  However, in the above-described box, the top plate flap may be bent so that the space between the lid front wall flap and the top plate becomes narrow, and the corner portion of the lid may be crushed.

  In view of the above problems, an object of the present invention is to provide a wound body storage box and a wound body-containing storage box that can suppress crushing in the vicinity of a corner.

  In order to achieve the above object, the wound body storage box according to the first aspect of the present invention has, for example, a rectangular parallelepiped shape that houses a wound body 91r around which a long object 91f is wound, as shown in FIG. The formed main body 10 is formed in an opening surface 10h in which one of four rectangular surfaces parallel to the axis 91a of the wound body 91r when the wound body 91r is accommodated is opened. 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 a rectangular parallelepiped end surface perpendicular to the four rectangular surfaces. A lid portion 20 that is rotatably connected to a rear plate edge 18 that is an edge that intersects the opening surface 10h of the rear plate 14. When the 20 is closed, the top plate 21 covering the opening surface 10h and the top plate 21 are connected. The side cover 15 is overlapped and bonded to the lid piece 22 covering a part of the front plate 12 and the side lid piece 25 connected to the top plate 21 and joining piece 22j connected to the lid piece 22. The side plate 15 protrudes outside the main body 10 on the side plate edge 15s, which is the side that intersects the opening surface 10h of the side plate 15. The side cover piece 25 is provided on the outer side of the joining piece 22j, so that the top side 25q that is the intersection of the top plate 21 and the side cover piece 25 and the joining piece 22j are provided. Are formed with a concave portion 25d into which the convex portion 15p fits when the lid portion 20 is closed; the joining piece 22j has an adjacent side 22ja adjacent to the concave portion 25d (see, for example, FIG. 1B), It reaches the intersection of the bent side 21f, which is the intersection of the top plate 21 and the lid piece 22, and the top side 25q. In, or adjacent edge 22j is configured prior to reaching the edge 25p is intersection line between the top sides 25q or Engai piece 22 and the side cover piece 25 in the range of 3mm from the intersection.

  If comprised in this way, since it is comprised so that an adjacent side may reach the top side or front side in the range of 3 mm from the intersection of a bending side and a top side, or a top plate, a lid piece, and a side The vicinity of the corner where the lid piece intersects can be reinforced with the joining piece, and the collapse near the corner can be suppressed. Moreover, the length of the ruled line connecting the lid piece and the joining piece can be made relatively large, and the molding accuracy when the joining piece is folded at right angles to the lid piece can be improved.

  Moreover, the winding body storage box which concerns on the 2nd aspect of this invention is a convex part 15p in the winding body storage box 1 which concerns on the said 1st aspect of this invention, as shown, for example in FIG.1 (B). The distance between the top side 25q and the joining piece 22j of the portion into which is fitted is 7 mm or less.

  When configured in this way, even when the side lid piece appears to open outward as it moves away from the top side, when the lid is closed, the point where the convex part falls from the joining piece to the concave part is relatively on the top side. Therefore, the elastic strain energy stored in the convex portion becomes relatively large, and it becomes easy to obtain a feeling when the convex portion falls into the concave portion.

  In addition, the container with a wound body according to the third aspect of the present invention includes, for example, a wound body 91r wound with a long object as shown in FIG. 1A; A wound body storage box 1 according to the aspect or the second aspect is provided.

  If comprised in this way, it will become an accommodation box with a wound body which can suppress crushing near a corner.

  According to the present invention, since the adjacent side is configured to reach the intersection of the bent side and the top side or the top side or the front side within a range of 3 mm from the intersection, the top plate, the lid piece and the side The vicinity of the corner where the lid piece intersects can be reinforced with the joining piece, and the collapse near the corner can be suppressed. Moreover, the length of the ruled line connecting the lid piece and the joining piece can be made relatively large, and the molding accuracy when the joining piece is folded at right angles to the lid piece can be improved.

(A) is a perspective view of a wrapping carton including a wrap carton according to an embodiment of the present invention, and (B) is a side view of the wrap carton according to an embodiment of the present invention. It is a perspective view which shows the opening condition of the carton with a wrap which concerns on embodiment of this invention. It is a partial side view which shows the circumference | surroundings of the joining piece of the lap | carton used in each Example and the comparative example. (A)-(C) are the partial side views concerning an Example, (D) And (E) is the partial side view concerning a comparative example. It is a figure which shows the table | surface which put together the result of the moldability which concerns on each Example and a comparative 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. 1A is a perspective view of a wrapping carton 100, and FIG. 1B is a side view of the wrapping carton 1. FIG. 1A 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 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. Based on this basic shape, the side cover piece 25 is rounded at the corner where the lower side 25s that is the side on the bottom plate 13 side and the rear side 25r that is the side on the rear plate 14 side intersect.

  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 formed in a substantially rectangular shape, and is disposed so as to be substantially parallel with a gap with respect to the top side 25q that is an intersection line of the lid plate 21 and the side lid piece 25. . 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. That is, the concave portion 25d where the protrusion 15p fits is formed by providing the side lid piece 25 outside the joining piece 22j so that the joining piece 22j does not contact the top side 25q.

  The adjacent side 22ja, which is the side adjacent to the concave portion 25d (the side closest to the cover plate 21) of the joining piece 22j, is bent in the vicinity of the front side 25p, which is the intersection of the lid cover piece 22 and the side cover piece 25. It is bent so as to connect to the intersection of the side 21f, the front side 25p, and the top side 25q. The angle α formed by the bent portion of the adjacent side 22ja and the top side 25q is preferably 25 to 75 °, more preferably 30 to 50 °, and still more preferably 35 to 40 °. The protrusion 15p is formed so as to fit into the recess 25d between the portion other than the bent portion of the adjacent side 22ja and the top side 25q when the lid 20 is closed. The width of the recess 25d (the distance between the top side 25q and the adjacent side 22ja) where the projection 15p fits is wide from the viewpoint of improving the formability of the wrap carton 1 (particularly, it can be folded along the intended ruled line). From the viewpoint of making it easier to obtain a feel when the projection 15p fits into the recess 25d, a narrower side is preferable, but it is preferably 3 to 7 mm, more preferably 4 to 6 mm. The form is 5 mm. When the lid portion 20 configured as described above is closed, the lid portion 20 covers the opening 10h of the main body portion 10, and the lid lid piece 22 covers the upper portion of the front plate 12.

  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 part 10 and the lid part 20 is subjected to a surface treatment on the whole after a design that induces consumer's desire to purchase is printed. At this time, OP (overprint) 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 suitably to the part of the front board 12 covered with the lid cover piece 22 when the cover part 20 is closed.

  As shown in FIG. 2, the cut-out piece 29 is provided on the carton 100 with a wrap before use in a mode of being connected to the lid cover piece 22 through the front end side 22t. The cut piece 29 is connected to the lid cover piece 22 and the perforation 29c, and is bonded to the front plate 12 at a plurality of bonding areas 34. The bonding area 34 has an aspect in which circles having a diameter of 5 to 7 mm are appropriately arranged at 6 to 8 places, unlike circles having a diameter of 7 mm that are conventionally used and arranged at 6 places at equal intervals. In addition, a half cut line (a line continuously cut so as to surround the outer edge of the bonding area 34) is not used. By being configured in this manner, when the cut piece 29 is peeled off, traces of the used paper layer are unlikely to remain in the adhesion area 34 of the front plate 12, so that the appearance of the adhesion area 34 in use is improved. Even when the carton 100 with wrapping is in a state where the cut piece 29 is attached, the rear side 25r and the lower side 25s are not attached to the main body part 10, and the gap between the side cover piece 25 and the side plate 15 opens. Yes.

  With continued reference to FIGS. 1 and 2, 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. In the wrap carton 1 constituting the wrapping carton 100 manufactured at the factory, the restoring force after the base paper is folded when assembled and / or the protrusions 15p provided on the side plate edge 15s are opened outward. Due to such a force, the side cover piece 25 tends to open from the side plate 15, and in particular, the opening of the rear side 25 r and the lower side 25 s that are not attached to the main body 10 due to the structure tends to increase.

  The unopened wrapped carton 100 in the consumer's hand is provided with a cut piece 29. When the wrap film 91 f is used for the first time, the cut piece 29 is cut off at the perforation 29 c while being peeled off from the front plate 12 and separated from the lid cover 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 snap 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. In the wrap carton 1, the adjacent side 22ja is inclined with respect to the top side 25q in the vicinity of the front side 25p and is connected to the intersection of the bent side 21f, the front side 25p, and the top side 25q. Since the upper part of the front side 25p is supported by the joining piece 22j, it is possible to suppress the crushing of the corner of the lid 20 on the side of the lid piece 22. Further, in the wrap carton 1, since the width of the recess 25d is formed to be relatively narrow 5 mm, when the lid portion 20 is closed, the point at which the projection 15p falls from the joining piece 22j to the recess 25d is the top side 25q. Relatively close. For this reason, since the lower side 25s side is in the open side cover piece 25 and the projection 15p approaches the side plate 15 and falls into the recess 25d, the elastic strain energy stored in the projection 15p immediately before falling into the recess 25d is compared. It becomes easier to obtain a feeling when the protrusion 15p falls into the recess 25d.

  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 applied to the entire portion of the front plate 12 covered with the lid cover piece 22 or an appropriate place when the lid portion 20 is closed, the effect of preventing the wrap film 91f from rewinding is further enhanced. . 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 projection 15p is provided as a convex portion formed by folding back a small piece extending about 3 mm upward from the side plate end side 15s. However, as long as the projection 15p is shaped to fit into the concave portion 25d. The form is not ask | required.

  Hereinafter, mainly with reference to FIG. 3, the formability of the lid portion 20 when the position where the adjacent side 22ja contacts the lid cover piece 22 is changed will be examined. FIG. 3 is a partial side view showing the periphery of the joining piece of the wrap carton, and shows a state in which the lid 20 is viewed from the inside. In the following description, when referring to the configuration of the lap carton 1 other than the portion shown in FIG. 3, reference is made to FIG. 1 as appropriate.

  3A shows the periphery of the joining piece 22j of the lap carton 1 described above, and the end point 22je of the adjacent side 22ja on the front side 25p side is the bent side 21f (see FIG. 1) and the top side 25q. At the intersection (hereinafter referred to as “top 22c”). A front side 25p also intersects the top 22c. In order to distinguish the lid portion 20 of the aspect in which the end point 22je intersects the top portion 22c shown in FIG. 3A from the lid portion 20 of another aspect described below, the lid portion 20 is referred to as a “lid portion 20A”. In the lid portion 20A, the adjacent side 22ja is formed of two straight lines whose angles change with the conversion point 22jc as a boundary. The conversion point distance Wp, which is the shortest distance from the conversion point 22jc to the front side 25p, is 8 mm. The front interval Gp, which is the shortest distance from the conversion point 22jc to the top side 25q, and the back interval Gr, which is the shortest distance from the end of the adjacent side 22ja closest to the rear side 25r to the top side 25q, In terms of design (when one cut base paper is ideally bent), the front gap Gp is 6.0 mm and the rear gap Gr is 7.7 mm in anticipation of deformation during molding. That is, in design, the interval between the recesses 25d is narrowed from the rear side 25r side to the front side 25p side. The lid portion 20A is formed in a size that is suitably connected to the main body portion 10 (see FIG. 1) having a width of 44 mm, a height of 44 mm, and a length of 310 mm. Other configurations are the same as those of the wrap carton 1 shown in FIG. This is the same as the lid 20.

  3B is formed such that the end point 22je of the adjacent side 22ja is positioned on the front side 25p that is 2 mm away from the top portion 22c along the front side 25p. Other configurations are the same as those of the lid portion 20A, including the conversion point distance Wp, the front interval Gp, and the rear interval Gr. The lid 20C shown in FIG. 3C is formed such that the end point 22je of the adjacent side 22ja is positioned on the top side 25q that is 2 mm away from the top 22c along the top side 25q. Other configurations are the same as those of the lid portion 20A, including the conversion point distance Wp, the front interval Gp, and the rear interval Gr. In both the lid portion 20B and the lid portion 20C, the end point 22je is within a range of 3 mm from the top portion 22c.

  In the lid portion 20D shown in FIG. 3D, the adjacent side 22ja is not bent and is formed in a straight line. The lid portion 20D is formed so that the end point 22je is positioned on the front side 25p that is 6 mm away from the top portion 22c along the front side 25p, and the rear interval Gr is 7.7 mm. Since there is no conversion point 22jc for the lid portion 20D, the distance between the end point 22je and the top portion 22c is referred to as a front interval Gp. Other configurations are the same as those of the lid portion 20A. 3E is formed such that the end point 22je of the adjacent side 22ja is positioned on the top side 25q that is 5 mm away from the top 22c along the top side 25q. Other configurations are the same as those of the lid portion 20A, including the conversion point distance Wp, the front interval Gp, and the rear interval Gr. The lid portion 20D and the lid portion 20E are both shown as comparative examples, with the end point 22je not being in the range of 3 mm from the top portion 22c.

  In FIG. 4 (A), the wrap carton having each of the lid portions 20A to 20E described above was molded using a cartoning machine, and the front gap Gp and the rear gap Gr of the lid portions 20A to 20E after molding were measured. A result (a unit is mm) is shown. Each numerical value shown in FIG. 4 (A) is an average of values obtained by molding five lid portions 20A to 20E and measuring them. In addition, the “right side” refers to the side lid piece 25 on the right side when the lap carton 1 (see FIG. 1) is viewed from the front plate 12, and the “left side” refers to This is the side cover piece 25 on the left side when viewed from the front plate 12. “Gp−Gr” is obtained by subtracting the measurement value of the rear interval Gr from the measurement value of the previous interval Gp, and the closer to 0, the closer the adjacent side 22ja becomes to the parallel to the top side 25q.

  FIG. 4B is a compilation of the results shown in FIG. 4A, where “average” is the average of the measured values of the left and right of each lid 20A-20E, “right-left”. This is the value obtained by subtracting the measured value on the left side from the measured value on the right side. Each numerical value in the column “Right-Left” indicates the variation in the left and right moldability. The closer to 0, the smaller the variation in the left and right. When attention is paid to the item “Gp” in the “average” column shown in FIG. 4B, the degree of collapse of the top portion 22c after molding can be understood. The longer the distance at which the joining piece 22j is in contact with the top side 25q, the larger the front interval Gp is (the top portion 22c is less likely to collapse), and as the distance at which the joining piece 22j is in contact with the top side 25q becomes shorter, the joining piece 22j When the end point 22je is on the front side 25p and there is no contact between the top side 25q and the top side 25q, the further the end point 22je is farther from the top portion 22c, the narrower the front gap Gp after molding becomes (the top portion 22c tends to collapse). In addition, it is thought that it is the error accompanying a bending process that the front space | interval Gp of the cover part 20C and the cover part 20E is larger than the design numerical value (6.0 mm), respectively.

  Focusing on the item “Gr” in the “average” column shown in FIG. 4B, the rear interval Gr of the lid portion 20D is significantly smaller than the designed numerical value (7.7 mm), and the lid portion 20E. The rear interval Gr is significantly increased. The reason why the rear gap Gr of the lid portion 20E is large is that the distance that the joining piece 22j contacts the top side 25q is relatively large. Therefore, when the bending process is performed, the joining piece 22j in the portion that contacts the top side 25q is covered by the lid 20E. It is presumed that the rear gap Gr is increased by being pushed by the plate 21. When attention is paid to the item of “Gp−Gr” in the “average” column shown in FIG. 4B, the lid portions 20A to 20C are within a range of ± 0.5 mm, whereas the lid portion 20D, 20E has an absolute value of 1 mm or more. This indicates that the lids 20D and 20E have an inclination of the adjacent side 22ja with respect to the top side 25q after molding, and the shape of the recess 25d is not stable. Furthermore, when looking at the item “Gp-Gr” in the “Right-Left” column shown in FIG. 4B, the numerical values of the lid portions 20D and 20E are large. This indicates that in the lid portions 20D and 20E, the left and right variations in the parallelism of the adjacent side 22ja with respect to the top side 25q after molding are large.

  Considering the above results, it has been confirmed that the configurations of the lid portions 20A to 20C are appropriate and the configurations of the lid portions 20D and 20E are inappropriate from the viewpoint of suppressing collapse of the top portion 22c and molding stability. .

DESCRIPTION OF SYMBOLS 1 Wrap carton 10 Main body 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 22ja Adjacent side 25 Side cover piece 25d Recess 25p Front side 25q Top side 25r Rear side 25s Lower side 91a Axis 91f Long body 91r Roll body 100 Wrapped carton

Claims (3)

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 side cover 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 overlapped and bonded to a joining piece connected to the side cover piece, the side plate A lid portion having a side lid piece covering a part;
The side plate is provided with a convex portion protruding outside the main body portion on the side plate end side which is an end side intersecting with the opening surface of the side plate;
The side lid piece is provided on the outer side of the joining piece, so that the lid portion is closed between the joining side and the top side that is an intersection of the top plate and the side lid piece. A recess is formed in which sometimes the projection fits;
The joining piece is such that the adjacent side adjacent to the recess reaches the intersection of the bent side that is the intersection of the top plate and the lid piece, and the top side, or the adjacent side, It is configured to reach the top side or the front side that is a line of intersection between the lid piece and the side lid piece within a range of 3 mm from the intersection point;
Winding box. A distance between the top side of the portion where the convex portion fits and the joining piece is formed to be 7 mm or less;
The wound body storage box according to claim 1. A wound body wound with a long object;
A wound body storage box according to claim 1;
Containment box with wound body.

Images