JP2011126548A - Sheet, paper box, and method for making hole in sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely form a narrow long opening without damaging a sheet. <P>SOLUTION: A sheet portion 100 forming the outline of an opening 26 is cut all the way along the outline with a cutter, forming the outline of the opening 26. A sheet portion 102 surrounded by the cut portion is pushed in with a pin 150, and is separated from the remaining sheet portion 103, forming a narrow long opening 26 in the sheet 2. In this case, in order to avoid the interference between the pin 150 and the remaining sheet portion 103 when the pin 150 is pushed in, the outline of the opening 26 is formed so that part of the opening 26 may expand outward in the short-side direction of the opening 26. The pushing-in of the sheet portion 102 with the pin 150 is carried out in an area including the projecting portion. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a sheet having an elongated opening, a paper box assembled using the sheet, and a method of forming an elongated opening in the sheet.

  With respect to a paper box assembled using a blank sheet, for example, in Patent Document 1, a paper box is resealed by providing a re-sealing insertion port on the front side of the paper box and inserting the lower end of the lid into the insertion port after opening. Such a technique is disclosed. In such a technique, the insertion port for resealing is configured by a cut formed in a blank sheet.

  However, when the insertion port for resealing is configured by cutting in this way, the lower end of the lid portion cannot be inserted into the insertion port unless the insertion port is widened, so that it may not be easily resealable.

  In view of this problem, it can be considered that the re-sealing insertion port is constituted by an elongated opening instead of the cut. In this case, a certain amount of width can be secured without expanding the insertion port in the short direction of the insertion port, and the lower end of the lid can be easily inserted into the insertion port.

JP 2009-1113835 A

  When forming an opening in a blank sheet for a paper box, first, a sheet portion that forms the outline of the opening is cut with a cutter. Subsequently, the sheet portion surrounded by the cut portion is dropped with a pin so as to be separated from the remaining sheet portion, whereby an opening is formed in the blank sheet.

  However, when a long and narrow opening is formed in the blank sheet as the re-sealing insertion port, the width of the opening in the short direction may be the same as the outer diameter of the pin. In some cases, the pin may interfere with the sheet portion around the periphery of the opening. Therefore, in this case, dropping by the pin may be incomplete or the blank sheet may be damaged.

  Therefore, in the present invention, after the sheet portion forming the outline of the opening is cut with a cutter, the sheet portion surrounded by the cut portion is pushed with a pin so as to be separated from the remaining sheet portion, thereby being elongated in the sheet. In forming the opening, the basic object is to reliably form the opening without damaging the sheet.

In order to solve the above problems, a sheet according to the present invention is
The sheet portion forming the contour of the elongated opening is cut by the cutter over the entire circumference of the contour, and the sheet portion surrounded by the cutting portion is pushed by the pin and separated from the remaining sheet portion, A sheet in which the opening is formed,
In order to prevent the pin and the remaining sheet portion from interfering with each other when the sheet portion surrounded by the cut portion is pushed into the opening by the pin, it bulges outward in the short direction of the opening. A bulging portion is provided.

A paper box according to the present invention is a paper box assembled using the above-described sheet,
A bottom surface portion, a peripheral wall portion rising from the bottom surface portion, and a lid portion that closes an upper end opening of the peripheral wall portion,
The elongated opening is an insertion port provided in the peripheral wall for inserting a part of the lid.

The sheet opening method according to the present invention includes:
A sheet opening method for forming an elongated opening in a sheet,
A contour forming step of forming the contour by cutting a sheet portion that forms the contour of the opening with a cutter over the entire circumference of the contour;
Separating the sheet part surrounded by the cutting part by the cutter with a pin and separating it from the remaining sheet part,
In the contour forming step, the contour is formed such that a part of the opening bulges outward in the short direction of the opening in order to avoid interference between the pin and the remaining sheet portion in the separation step. Forming,
In the separation step, the sheet portion surrounded by the cut portion is pushed into the portion including the bulging portion by the pin.

  According to the present invention, after a sheet portion that forms the outline of the opening is cut with a cutter, the sheet portion surrounded by the cut portion is pushed with a pin so as to be separated from the remaining sheet portion, thereby elongating the sheet. In the case of forming an opening, a bulge that bulges outward in the short-side direction of the opening in order to avoid interference between the pin and the remaining sheet portion when the pin is pushed into the opening. Is provided. For this reason, it is possible to prevent the opening from being reliably formed or the sheet from being damaged due to uncertain separation of the sheet due to the pressing of the pin.

It is a perspective view which shows the paper box which concerns on one Embodiment of this invention. It is a top view of the blank sheet used for formation of the paper box shown in FIG. It is a perspective view which shows the procedure which assembles the blank sheet | seat shown in FIG. It is a perspective view which shows the procedure which assembles the blank sheet | seat shown in FIG. It is a perspective view which shows the procedure which assembles the blank sheet | seat shown in FIG. It is a perspective view which shows the paper box of the state which the assembly was completed. It is a perspective view which shows the state which opened the paper box. It is a perspective view which shows the state which disassembled the paper box. It is a perspective view which shows the procedure which forms an insertion port in a blank sheet. It is a perspective view which shows the procedure which forms an insertion port in a blank sheet. It is a perspective view of the paper box which expands and shows an insertion port.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings. In the following description, terms that mean a specific direction (for example, “up”, “down”, “left”, “right”, and other terms including them) are used. In order to facilitate understanding of the invention with reference to the drawings, the present invention should not be construed as being limited by the meaning of these terms. Moreover, in the following description, the same code | symbol is used for the same or similar component.

  FIG. 1 is a perspective view showing a paper box 1 according to the present embodiment. The paper box 1 is used for packaging, for example, containers for medicines and cosmetics, and is assembled using a blank sheet 2 composed of a plurality of panels as shown in FIG.

  As shown in FIG. 1, the paper box 1 includes a bottom surface portion 14, a cylindrical peripheral wall 4 that rises from the bottom surface portion 14, and a lid portion 15 that closes an upper end opening of the cylindrical peripheral wall 4. The lid portion 15 is connected to a part of the upper end of the cylindrical peripheral wall 4 through a fold 72 and is connected to the upper surface portion 16 through the fold 71 to close the upper end opening of the cylindrical peripheral wall 4. And it has the coating | coated part 17 which coat | covers a part of outer peripheral surface of the cylindrical surrounding wall 4. As shown in FIG. The covering portion 17 can be separated from the peripheral wall adhesive portion 20 adhered to the outer peripheral surface of the cylindrical peripheral wall 4 and the peripheral wall adhesive portion 20 while being connected to the upper surface portion 16, and by the lid portion 15 after the separation. A locking portion 22 that can be locked to the cylindrical peripheral wall 4 when the upper end opening of the cylindrical peripheral wall 4 is closed is provided. A perforation 91 made of a plurality of cuts is formed at the boundary between the peripheral wall bonding portion 20 and the locking portion 22. An insertion piece 24 to be inserted into an insertion port 26 described later formed in the cylindrical peripheral wall 4 is provided at the tip of the locking portion 22.

  The cylindrical peripheral wall 4 includes a rear surface portion 6 in which the upper surface portion 16 of the lid portion 15 is continuously provided, a front surface portion 8 that is disposed so as to face the rear surface portion 6 and is covered with the covering portion 17 of the lid portion 15, and the front surface portion 8. And a pair of side views 10 and 12 straddling the rear surface portion 6.

  An insertion port 26 for inserting the insertion piece 24 of the above-described locking portion 22 is formed in the front surface portion 8. The insertion port 26 is configured by an elongated opening bent in a crescent shape, for example. Unlike the insertion slot configured by cutting, the insertion slot 26 configured by the opening has a certain width in the short direction of the insertion slot 26, and thus the insertion piece 24 of the lid 15 is inserted into the insertion slot. 26 is easy to insert. The insertion port 26 is provided so that the longitudinal center portion thereof is the uppermost portion, and insertion of the insertion piece 24 into the insertion port 26 is started from the longitudinal center portion of the insertion port 26. . As shown in FIG. 11, a bulging portion 110 (described later) that bulges upward is provided at the longitudinal center of the insertion opening 26. Further, the front surface portion 8 is provided with a plurality of cuts 104 (104a, 104b, 104c, 104d, 104e) connected to the upper edge of the insertion opening 26. By providing these notches 104, the upper edge portion of the insertion port 26 can be easily bent, so that the insertion piece 24 can be more easily inserted into the insertion port 26.

  As shown in FIGS. 3 and 4, each of the side surface portions 10 and 12 is configured by overlapping a plurality of panel portions, specifically, three panel portions 60 a to 60 c and 62 a to 62 c described later. Adhesive pieces 30 for adhering to the lower surface of the upper surface portion 16 are connected to the upper ends of the side surface portions 10 and 12 via folds 83 and 84, respectively. An inner piece 32 that is superimposed on the inner side of the adhesive piece 30 is connected to the upper ends of the side surface portions 10 and 12 via folds 81 and 82. In the present embodiment, the adhesive piece 30 is connected to the panel portions 60 c and 62 c arranged on the outermost side in the side surface portions 10 and 12, and the inner piece 32 is a panel arranged on the innermost side in the side surface portions 10 and 12. It is connected to the parts 60a and 62a.

  However, the adhesive piece 30 may be connected to any of the panel portions 60b, 60c, 62b, 62c other than the panel portions 60a, 62a arranged on the innermost side in the side surface portions 10, 12, or the inner piece 32 may be connected to any of the panel portions 60a, 60b, 62a, 62b as long as it is a panel portion arranged on the inner side of the panel portion connected to the adhesive piece 30. Further, the adhesive piece 30 and / or the inner piece 32 may be connected to the upper end of one of the side surfaces.

  FIG. 2 is a plan view of the blank sheet 2 as seen from the side of the face that is arranged inside the box when assembled. As shown in FIG. 2, the blank sheet 2 includes a bottom panel part 64 that constitutes the bottom part 14, a front panel part 58 that constitutes the front part 8, a rear panel part 56 that constitutes the rear part 6, Three side panel portions 60a, 60b, 60c constituting the side surface portion 10, three side panel portions 62a, 62b, 62c constituting the other side surface portion 12, and an upper surface panel portion 66 constituting the upper surface portion 16, And a covering panel portion 67 constituting the covering portion 17.

  In the vertical direction in the drawing, the covering panel portion 67, the top panel portion 66, the rear panel portion 56, the bottom panel portion 64, and the front panel portion 58 are arranged in a straight line through the fold lines 71 to 74. It is installed. The front panel portion 58 is provided with an insertion port 26. A method of forming the insertion opening 26 in the front panel portion 58 will be described later.

  One side surface portion 10 includes a first side surface panel portion 60a disposed on the innermost side when assembled, a second side surface panel portion 60b disposed on the outer side of the first side surface panel portion 60a, It is comprised by the 3rd side surface panel part 60c arrange | positioned on the outer side of the 2 side surface panel parts 60b, ie, the outermost side. Similarly, the other side surface portion 12 includes a first side surface panel portion 62a disposed on the innermost side when assembled and a second side surface panel portion 62b disposed on the outer side of the first side surface panel portion 62a. And the third side panel 62c arranged outside the second side panel 62b, that is, the outermost side. The first side panel portions 60a and 62a are connected to the bottom panel portion 64 via folds 77 and 78, and the second side panel portions 60b and 62b are connected to the rear panel portion 56 via folds 75 and 76. The third side panel portions 60c and 62c are connected to the front panel portion 58 through folds 79 and 80. Perforations 92 to 95 having a plurality of cuts are formed at the boundary between the rear panel portion 56 and the second side panel portions 60b and 62b and at the boundary between the front panel portion 58 and the third side panel portions 60c and 62c. Is formed. In addition, perforations 96 and 97 having a plurality of cuts are formed at the boundary between the third side panel portions 60c and 62c and the adhesive piece 30, whereby the adhesive piece 30 is connected to the side portions 10 and 12. It can be separated from the upper end.

  Seal portions S1 to S3 are provided at predetermined positions on the outer surfaces of the first side panel portions 60a and 62a, the second side panel portions 60b and 60b, and the adhesive piece 30 (FIGS. 3 to 5). reference). Further, a seal portion S4 is also provided at a predetermined location on the inner surface of the peripheral wall bonding portion 20. An adhesive is applied to the seal portions S1 to S4 in advance before the blank sheet 2 is assembled.

  A procedure for assembling the blank sheet 2 will be described with reference to FIGS. As shown in FIG. 3, first, the first side panel portions 60 a and 62 a are bent along the fold lines 77 and 78 at a substantially right angle. Subsequently, as shown in FIG. 4, after the rear panel portion 56 is bent at a substantially right angle along the fold line 73, the second side panel portions 60b and 62b are bent at a substantially right angle along the fold lines 75 and 76, The second side panel portions 60b and 62b are bonded to the outer surfaces of the first side panel portions 60a and 62a. Next, as shown in FIG. 5, after the front panel 58 is bent at a substantially right angle along the fold line 74, the third side panel parts 60c and 62c are bent at a substantially right angle along the fold lines 79 and 80. The third side panel portions 60c and 62c are bonded to the outer surfaces of the second side panel portions 60b and 62b. Thereby, the inner piece 32 is piled up inside the adhesive piece 30 (refer FIG. 1). Finally, the cover 15 is closed in a state in which a container such as a chemical container is accommodated in the box, whereby the assembly of the blank sheet 2 is completed as shown in FIG. Things are enclosed. Specifically, when closing the lid portion 15, the upper panel portion 66 is bent along the fold line 72 at a substantially right angle with the adhesive piece 30 and the inner piece 32 folded inward along the fold lines 81 to 84. The upper panel portion 66 is bonded to the outer surface of the piece 30. Further, the cover panel portion 67 is bent at a substantially right angle along the crease 71, and the peripheral wall bonding portion 20 of the cover panel portion 67 is bonded to the outer surface of the front panel portion 58. Thereby, the upper surface portion 16 of the lid portion 15 is adhered to the adhesive piece 30, and the covering portion 17 of the lid portion 15 is adhered to the front surface portion 8, so that the adhesion of the lid portion 15 is performed between the front surface and the upper surface of the paper box 1. Will be done on the surface. Therefore, it is possible to more reliably prevent the lid portion 15 from being accidentally opened before opening compared to the case where the lid portion is bonded only on the front surface of the paper box.

  In a state where the contents are enclosed in the paper box 1, the paper box 1 can be opened as shown in FIG. 7 by grasping and pulling up the insertion piece 24 provided at the tip of the lid portion 15 while holding the paper box 1. . Specifically, by this opening operation, in the covering portion 17 of the lid portion 15, the locking portion 22 is separated from the peripheral wall adhesive portion 20 along the perforation 91 and is adhered to the lower surface of the upper surface portion 16 of the lid portion 15. The adhesive piece 30 is cut off from the third side panel portions 60 and 62 c along the perforations 96 and 97, whereby the lid portion 15 can be opened. When the paper box 1 is opened in this way, the adhesive piece 30 is cut off from the side portions 10 and 12, but the inner piece 32 that is superimposed on the inner side of the adhesive piece 30 before opening is on the upper end of the side portions 10 and 12. The connected state is maintained. When the lid 15 is closed after the paper box 1 is once opened, the insertion portion 24 at the tip of the lid 15 is inserted into the insertion port 26 of the front portion 8, thereby engaging the locking portion 22 of the lid 15 with the front portion 8. Thereby, it becomes possible to re-enclose a container such as a chemical container in the paper box 1 once opened. At this time, since the upper surface portion 16 of the lid portion 15 is overlapped with the outer side of the inner piece 32, a gap between the upper surface portion 16 of the lid portion 15 and the upper ends of the side surface portions 10 and 12 is formed by the inner piece 32. Can be closed.

  When the opened paper box 1 is discarded, as shown in FIG. 8, the third side panel portions 60c and 62c are moved along the perforations 94 and 95 while the side surface portions 10 and 12 are tilted outward. 8, and the second side panel portions 60 b and 62 b are separated from the rear surface portion 6 along the perforations 92 and 93, whereby the side surface portions 10 and 12 can be easily separated from the front surface portion 8 and the rear surface portion 6. . Thereby, the paper box 1 can be easily made into a thin plate shape, and the convenience at the time of disposal is improved.

  Next, a method for forming the insertion opening 26 in the blank sheet 2 will be described with reference to FIGS. 9 and 10.

  The insertion opening 26 is formed through a contour formation process and a separation process.

  First, in the contour forming step, the sheet portion 100 that forms the contour of the insertion slot 26 is cut with a cutter (not shown) over the entire circumference of the contour, thereby forming the contour of the insertion slot 26. The contour of the insertion port 26 is formed so that the insertion port 26 is formed in a substantially crescent shape and the bulging portion 110 is provided in the insertion port 26. In order to avoid the pin 150 from interfering with the remaining sheet portion 103 excluding the sheet portion 102 surrounded by the cut portion 100 in the next separation step, the bulging portion 110 is located outward in the short direction of the insertion opening 26. Protruded and provided. Further, the bulging portion 110 is provided so as to be arranged at the center in the longitudinal direction of the insertion opening 26 and to have a shape corresponding to the lower surface shape of the pin 150 described later, specifically, for example, a semicircular shape. It is done. By forming the outline of the insertion opening 26 so that the bulging portion 110 is provided in this way, the width in the short direction of the sheet portion 102 is ensured to be relatively large in the longitudinal center portion of the sheet portion 102. Is done.

  In the contour formation step, the plurality of cuts 104 (104a, 104b, 104c, 104d, 104e) connected to the insertion port 26 are formed together with the contour formation of the insertion port 26.

  In the next separation step, the sheet portion 102 surrounded by the cut portion 100 is pushed by the pins 150 and separated from the remaining sheet portion 103. Specifically, in a state where the sheet 2 is horizontally disposed, the sheet portion 102 surrounded by the cut portion 100 is dropped by being pushed downward by a lower end of a round bar-shaped pin 150 disposed along the vertical direction. . At this time, the pressing by the pin 150 is performed at a portion including the portion corresponding to the bulging portion 110 of the sheet portion 102, that is, at the central portion in the longitudinal direction of the sheet portion 102. Since the central portion in the longitudinal direction of the sheet portion 102 has the maximum width in the lateral direction of the sheet portion 102, the sheet portion 102 is pushed by the pins 150 while avoiding interference between the pins 150 and the remaining sheet portions 103. It can be done reliably. Therefore, it is possible to reliably form the insertion port 26 by dropping the sheet portion 102 while preventing the remaining sheet portion 103 from being damaged due to contact with the pins 150.

  While the present invention has been described with reference to the above-described embodiments, the present invention is not limited to the above-described embodiments.

  For example, in the above-described embodiment, the case where the opening is formed in the blank sheet for the paper box has been described, but the present invention is equally applicable to the case where the opening is formed in a sheet used for various purposes other than the paper box. be able to.

  Further, in the above-described embodiment, the case where the crescent-shaped opening is formed has been described. However, the present invention can be equally applied to the case of forming elongated openings having various shapes other than the crescent. it can.

1: paper box, 2: blank sheet, 4: peripheral wall portion, 14: bottom surface portion, 15: lid portion, 17: covering portion, 26: insertion port (elongated opening), 100: sheet portion forming a contour (cut portion) ), 102: sheet portion surrounded by the cut portion, 103: remaining sheet portion, 110: bulging portion, and 150: pin.

Claims (5)

The sheet portion forming the contour of the elongated opening is cut by the cutter over the entire circumference of the contour, and the sheet portion surrounded by the cutting portion is pushed by the pin and separated from the remaining sheet portion, A sheet in which the opening is formed,
In order to prevent the pin and the remaining sheet portion from interfering with each other when the sheet portion surrounded by the cut portion is pushed into the opening by the pin, it bulges outward in the short direction of the opening. A sheet having a bulging portion.   The sheet according to claim 1, wherein the bulging portion is formed at a central portion in the longitudinal direction of the opening. A paper box assembled using the sheet according to claim 1 or 2,
A bottom surface portion, a peripheral wall portion rising from the bottom surface portion, and a lid portion that closes an upper end opening of the peripheral wall portion,
The paper box, wherein the elongated opening is an insertion opening provided in the peripheral wall for inserting a part of the lid. The lid portion includes a covering portion that covers a part of the peripheral wall portion,
The insertion port is provided so that a lower end portion of the covering portion can be inserted,
The paper box according to claim 3, wherein the bulge portion is provided so as to bulge upward in the insertion port. A sheet opening method for forming an elongated opening in a sheet,
A contour forming step of forming the contour by cutting a sheet portion that forms the contour of the opening with a cutter over the entire circumference of the contour;
Separating the sheet part surrounded by the cutting part by the cutter with a pin and separating it from the remaining sheet part,
In the contour forming step, the contour is formed such that a part of the opening bulges outward in the short direction of the opening in order to avoid interference between the pin and the remaining sheet portion in the separation step. Forming,
In the separating step, a sheet punching method, wherein a portion including the bulging portion of the sheet portion surrounded by the cut portion is pushed by the pin.

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