JP2019167134A - Middle frame and packaging box with middle frame - Google Patents

Abstract

To provide a middle frame and a packaging box with middle frame in which an outer case and the middle frame are separate bodies and easy to use, in which the middle frame can be made easily by double-folding a middle frame forming piece having a small area, which surely protect an object to be stored, and in which the middle frame can be easily taken out from the outer case with the object to be stored in a state of holding the object to be stored.SOLUTION: A middle frame is provided separately from an outer case 12, it holds an object 11 to be stored, and it is put in from an opening of the outer case 12 and stored. A middle frame forming piece 16 has a pair of side surfaces 18, 20 and a folding ruled line 22 which becomes substantially vertical in a use state where the side surfaces 18, 20 are partitioned. At the side surfaces 18, 20, a cutting line 32 crossing the folding ruled line 22 is provided, and the portion below the cutting line 32 becomes a holding piece 36 for holding a bottom part of the object 11 to be stored. The pair of side surfaces 18, 20 forms a space for storing the object 11 to be stored by the folding ruled line 22 and end part on the opposite side being pasted with each other. Below the space, a holding piece is provided extending from the pair of side surfaces 18, 20 in the direction of the folding ruled line 22 for partitioning the pair of side surfaces 18, 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging box with a middle frame provided with a middle frame accommodated in an outer box and a middle frame that is placed in the outer box and holds the contents.

  Conventionally, a packaging box formed by bending and pasting a box-forming piece integrally punched from a blank sheet is used for a buffer for holding a container, such as a glass bottle, that is vulnerable to impacts inside the box. Some have a partition piece. For example, in the case of the packaging box with a buffer function disclosed in Patent Document 1, an inner frame is provided inside the box, and the inner frame is opposed to the pair of side surfaces sandwiching the product and the pair of side surfaces of the product. The window part formed in the part to perform, and the elastic film stuck on the said goods stuck on the said window part are provided. An embodiment is disclosed in which the middle frame is housed so that both side edges of a pair of side surfaces are fitted in diagonal corners within the box.

  Moreover, the packaging body with a buffer function described in Patent Document 2 and the packaging box using the same have a main crease line in which the first side plate, the second side plate, and the support plate connected in a row to the mount are parallel to each other. A package that is an inner frame is formed. The inner side of the support plate is divided into first and second gluing portions at both ends by a sub-fold ruled line parallel to the main fold ruled line, and a container support part at the center. The package is formed by folding the main crease line and overlapping the three plates in order, the first glue portion is glued to the first side plate, the second glue portion is glued to the second side plate, By the operation of bending the second side plate outward, the accommodation support part moves to a position where it intersects with the first and second side plates, and an accommodation space is formed above the accommodation support part.

JP 2014-5054 A Utility Model Registration No. 3212133

  In the case of the said patent document 1, the process of sticking a stretchable film to an inner frame is required, and manufacture, an assembly man-hour, and cost start. Moreover, in the case of patent document 2, it consists of three members, a 1st side plate, a 2nd side plate, and a support plate, and an area is large and the number obtained by punching from a blank sheet is few.

  On the other hand, for packaging of chemical solutions such as anticancer agents, a packaging material with a buffer function is considered that prevents exposure of the drug and considers the safety aspects of workers handling the drug. For example, a resin molded product that contains a vial containing a drug is provided, and the vial is stored in a box together with the molded product and packaged. When using a drug, the molded product is held without touching the vial directly. To remove from the box. After the removal, the molded product is self-supported on the work table, the vial is allowed to stand, and the drug solution in the vial can be transferred to the syringe while holding the molded product. Thereby, it can prevent that a chemical | medical solution adheres to an operator, and can improve safety | security.

  However, there is a problem that the cost of the mold cost is required for the molded product. Therefore, there is a need for a packaging form that can prevent exposure as much as possible, improve safety, have good handleability, and reduce costs.

  The present invention has been made in view of the above problems of the background art, and the outer box and the inner frame are separate and easy to use, and the inner frame is easily obtained by folding the inner frame forming piece in a small area into two. It is an object of the present invention to provide an inner frame and a packaging box with an inner frame that can be easily taken out together with the stored item from the outer box in a state in which the stored item is securely protected and the stored item is held.

  The present invention is an inner frame that is provided separately from the outer box, holds the contents, and is inserted through the opening of the outer box. The middle frame is formed of a middle frame forming piece, and the middle frame forming piece is provided with a pair of side surfaces and a crease line that is substantially vertical in a use state that divides the pair of side surfaces. A cutting line that intersects the cutting line is provided, and below the cutting line is a holding piece that holds the bottom of the container. The pair of side surfaces are glued together at opposite ends to the crease line to form a space for accommodating the contents, and below the space, in the direction of the crease line that divides the pair of side surfaces, The holding piece is formed by the middle frame forming piece at a portion where the pair of side surfaces extend.

  The holding piece is provided with a plurality of folding lines intersecting with the cutting line, and the pair of side surfaces are curved outward so as to be separated from each other, thereby creating a space for accommodating the contents inside. The holding piece is bent toward the inside of the space along the folding line and is located inside the space in plan view.

  The holding pieces are provided on the pair of side surfaces, respectively, and a part of the holding pieces is glued to form a double structure, and the strength is high. The holding piece is provided with two folding lines and is Y-shaped in plan view.

  The middle frame is formed with a knob portion that is held when the middle frame is pulled up from the outer box, and a crease line is provided at the base end portion of the knob portion, when the inner frame is accommodated in the outer box. It is bent along the crease line to cover the upper surface of the container.

  In addition, the length of one side that is substantially horizontal when the side surface of the middle frame is used is slightly longer than the diagonal line of the outer box, and the middle frame is separated from the pair of side surfaces by the container. It can be put in an outwardly curved state and is accommodated without a gap between a pair of corners located on a diagonal line.

  Further, according to the present invention, the outer box and the inner frame are separate bodies, the outer box is a bottomed cylindrical shape that opens upward, and the inner frame holds the contents and is inserted from the opening of the outer box. The middle frame is formed of a middle frame forming piece, and the middle frame forming piece is provided with a pair of side surfaces and a crease line that is substantially vertical in a use state separating the pair of side surfaces. Is provided with a cutting line that intersects with the crease line, and below the cutting line is a holding piece for holding the bottom of the container, and the pair of side surfaces are opposite to each other with the opposite ends of the crease line. A space for accommodating the contents is formed by being glued, and below the space is formed by the middle frame forming piece in a portion where the pair of side surfaces extend in the direction of the crease line separating the pair of side surfaces. Further, it is a packaging box with an inner frame in which the holding piece is assembled.

  The inner frame and the packaging box with an inner frame of the present invention are easy to use because the outer box and the inner frame are separate, and the inner frame is easily made by folding the small inner frame forming piece in half. It can be easily taken out together with the contents from the outer box while protecting the contents.

It is the perspective view (a) and top view (b) of the packaging box with a middle frame of 1st embodiment of this invention. It is a perspective view which shows the state which packaging of the packaging box with a middle frame of 1st embodiment of this invention was completed. It is an expanded view of the middle frame of the packaging box with a middle frame of 1st embodiment of this invention. It is an expanded view of the middle frame of the packaging box with a middle frame of the second embodiment of this invention. It is an expanded view of the middle frame of the packaging box with a middle frame of 3rd embodiment of this invention. It is an expanded view of the middle frame of the packaging box with a middle frame of 4th embodiment of this invention. It is the perspective view (a) of the folded state of the middle frame of the packaging box with a middle frame of 4th embodiment of this invention, and the perspective view (b) of the state which opened the space which accommodates a stored item.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of the present invention, and a packaging box 10 with an inner frame in this embodiment is an outer box-forming piece formed by punching out one blank sheet such as cardboard. An outer box 12 that is assembled and a middle frame 14 that is placed in the outer box 12 and holds the contents 11 are provided.

  Here, the middle frame 14 will be described. The middle frame 14 is formed by assembling a middle frame forming piece 16 formed by punching out a single blank sheet such as cardboard in the same manner as the outer box 12. FIG. 3 is a developed view of the middle frame forming piece 16 as viewed from the surface. A rectangular side surface 18 that is long in one direction and a rectangular side surface 20 that is adjacent to the long side edge of the side surface 18 and is smaller than the side surface 18 are shown. It is provided by being separated by a crease line 22. The length of the side surface 20 in the connecting direction with the side surface 18 is substantially the same as that of the side surface 18, and the length intersecting the connecting direction is shorter than that of the side surface 18. On the side edge of the side surface 20 opposite to the crease line 22, a glued piece 24 to be glued to the surface of the side surface 18 is provided by being separated by a crease line 26.

  The upper end portion 18a of the side surface 18 that intersects the crease line 22 and is positioned upward in use is slightly shorter than the width of the side surface 18 near the center perpendicular to the crease line 22, The edge portion is an inclined portion 18b such that the portion connected to the upper end portion 18a approaches each other as it approaches the upper end portion 18a. This is an escape to prevent the outer box 12 from hitting an insertion piece 70 described later. At the center of the upper end portion 18a, a tongue-like knob portion 28 that protrudes upward from the upper end portion 18a at a substantially right angle is formed, and at the base end portion of the knob portion 28, a knob that curves toward the center of the side surface 18. A part crease line 30 is provided.

  A slit portion 32, which is a cutting line, is cut out at a position near the lower end portion 18 c located on the side opposite to the upper end portion 18 a and on the lower side. The slit portion 32 communicates with the side edge portion on which the crease line 22 is provided, and the tip end portion 32a on the opposite side of the slit portion 32 slightly exceeds the center of the width of the side surface 18 and is on the side edge on the opposite side to the crease line 22. It has reached the vicinity of the portion 18d. The longitudinal direction of the slit portion 32 is substantially perpendicular to the crease line 22. A portion where the upper edge of the slit portion 32 intersects with the crease line 22 is chamfered to become an inclined portion 22a, which becomes a relief when inserted into the outer box 12. A portion of the side surface 18 where the lower end portion 18c and the side edge portion 18d intersect is also chamfered to form an inclined portion 18e, which becomes a relief when inserted into the outer box 12.

  Further, the side surface 18 is provided with a folding line 34 connecting the tip 32a of the slit 32 and the lower end 18c. The folding line 34 is substantially perpendicular to the longitudinal direction of the slit 32 and the lower end 18c. . A portion surrounded by the slit portion 32, the folding line 34, and the lower end portion 18c is a holding piece 36. The holding piece 36 is formed by a portion in which the side surface 18 extends in the direction of the crease line 22, and has a long band shape along the lower end portion 18c. The tip end portion 36a of the holding piece 36 opposite to the folding line 34 is folded. The length does not reach the extended line of the ruled line 22, and is formed by a straight line substantially parallel to the folding line 34 and the folded ruled line 22. A protrusion 38 that protrudes toward the inside of the slit portion 32 is provided on a portion of the distal end portion 36 a of the holding piece 36 opposite to the lower end portion 18 c, that is, on the side edge portion on the lower side of the slit portion 32. Near the center of the holding piece 36 in the longitudinal direction, a folding line 40 that is substantially parallel to the folding line 34 is provided. The folding line 40 extends to the slit 32 and the lower end 18c over the entire length of the holding piece 36. Communicate.

  The side surface 20 continues to the side surface 18 via the crease line 22, and the upper end portion 20a closer to the upper end portion 18a of the side surface 18 is a straight line positioned substantially perpendicular to the crease line 22, and the end portion 18a It is located closer to the end 18 c than the extension line, and is continuous with the end of the crease line 22. At the center of the upper end portion 20a, a concave portion 42 that is curved and recessed toward the center of the side surface 20 is formed. A lower end 20b of the side 20 opposite to the upper end 20a is a straight line located on an extension line of the end 18c of the side 18. Between the upper end portion 20a and the lower end portion 20b, there are provided a slit portion 44 and a holding piece 46 which are in line symmetry with the slit portion 32 and the holding piece 36 with the crease line 22 interposed therebetween. The holding piece 46 is also formed by a portion where the side surface 20 extends in the direction of the crease line 22, and a portion where the slit portion 44 and the crease line 22 intersect with each other is an inclined portion 22a and an inclined portion 22b having a line symmetry shape. The holding piece 46 is provided with folding lines 48 and 50 and projections 52 which are symmetrical with the folding lines 34 and 40 and the projections 38. A portion where the crease line 26 and the end portion 20 b intersect is chamfered to become an inclined portion 20 c, which is a relief when inserted into the outer box 12. In addition, as for a pair of holding pieces 36 and 46, the front-end | tip parts 36a and 46a are spaced apart.

  An upper end portion 24a of the glued piece 24 continuous with the upper end portion 20a of the side surface 20 is a straight line located on an extension line of the upper end portion 20a. The lower end 24b opposite to the upper end 24a is a straight line that is closer to the center of the glued piece 24 than the lower end 20b and continues to the end of the inclined portion 20c.

  In addition, each crease line and each fold line described above may be provided as a break line so as to be easily bent.

  Next, an example of a method for assembling the middle frame 14 will be described. Here, FIG. 3 is a view of the surface of the middle frame forming piece 16 of the middle frame 14, and the folding method in which the front surface of the middle frame forming piece 16 is convex and the back surface is convex. Is called reverse folding.

  First, the paste 54 is applied to the back surface of the holding piece 46 between the folding line 50 and the tip 46a. The paste 56 is also applied to the back surface of the glued piece 24 along the crease line 26 for a long time. Next, the crease line 22 is folded forward and the back surface of the holding piece 46 is glued to the back surface of the holding piece 36. Then, the crease line 26 is normally folded and the back surface of the glued piece 24 is glued to the surface of the side surface 18. The middle frame forming piece 16 is in a folded state, and the middle frame 14 is shipped in the folded state.

  Next, in a factory or the like where the contents 11 are stored and packaged, a force is applied to bring the crease line 22 and the crease line 26 closer to each other, and the folded side surfaces 18 and 20 are bent outwardly away from each other. Thus, a spindle-shaped space is created on the inside as shown in FIG. At this time, the holding pieces 36 and 46 are pulled away from the side surfaces 18 and 20 and separated from each other. However, since the vicinity of the tip portions 36a and 46a is bonded with the glue 54, the folding lines 34 and 48 are normally folded and the folding line 40 is bent. , 50 are reversely folded into a Y shape in plan view as shown in FIG. 1B, and are assembled along the lower end portions 18c, 20b below the space between the side surfaces 18, 20.

  Next, the contents 11 are put into the space between the side surfaces 18 and 20 from the upper end portions 18a and 20a. The container 11 is, for example, a vial containing a liquid medicine. The side peripheral surface of the container 11 is pressed and sandwiched between the side surfaces 18 and 20 by the elastic force of the side surfaces 18 and 20 from both sides. The bottom surface of the container 11 is held in contact with holding pieces 36 and 46 assembled in a Y shape. In addition, the protrusions 38 and 52 of the holding pieces 36 and 46 are positioned on the side of the bottom surface of the container 11 to suppress and stabilize the movement of the spindle-shaped space between the side surfaces 18 and 20 in the longitudinal direction.

  The middle frame 14 containing the contents 11 is packed in the outer box 12. Here, the outer box 12 will be described. The outer box 12 is provided with four side surfaces 58, 60, 62, and 64 connected in parallel to each other, and is glued with a glued piece to be assembled into a rectangular tube shape. The lower open end of the cylinder is closed by a bottom cover piece 66, and the shape retaining property is maintained as a box. An upper lid piece 68 is provided at the upper end of the side surface 58 by being separated by a crease line. An insertion piece 70 is further provided on the end of the upper lid piece 68 opposite to the side surface 58, separated by a crease line. At the upper ends of the side surfaces 60 and 64 positioned at right angles to the side surface 58, a rectangular upper flap 72 is provided by being separated by a crease line. The four side surfaces 58, 60, 62, and 64 have the same shape, are rectangular in the direction intersecting the connecting direction rather than the connecting direction of the side surfaces, and the assembled rectangular cylindrical inner space is: The length of the diagonal line from the crease line 22 of the side surface 18 to the side edge 18d opposite to the crease line 22 is slightly deeper than the length from the lower end portion 18c and the upper end portion 18a of the side surface 18 of the middle frame 14. It is a little shorter than the length.

  When packaging the contents 11, as shown in FIG. 1, the inner frame 14 holding the contents 11 is placed in the outer box 12 in which the side surfaces 58, 60, 62, 64 and the bottom cover piece 66 are assembled. At this time, the side surfaces 18 and 20 of the inner frame 14 are set along a diagonal line that intersects the depth direction of the rectangular cylindrical inner space of the outer box 12. Since the diagonal line of the inner space of the outer box 12 is slightly shorter than the length from the crease line 22 of the side surface 18 to the side edge 18d, the side surfaces 18 and 20 are bent outwardly by the container 11 so as to be separated from each other. It can be inserted and is accommodated without a gap between a pair of corners located on a diagonal line. The lower end portions 18 c and 20 b of the side surfaces 18 and 20 are in contact with the bottom lid piece 66, and the holding piece 36 and the holding piece 46 are installed in a Y shape along the bottom lid piece 66. The upper end portion 18 a of the side surface 18 is at a position slightly lower than the opening end portion above the outer box 12, and the knob portion 28 of the inner frame 14 protrudes upward beyond the opening end portion of the outer box 12.

  Next, the knob portion 28 of the middle frame 14 is forwardly folded at the knob portion crease line 30. Since the knob part crease line 30 is curved, it can be normally folded at approximately 90 ° along the curved side surface 18. Then, the pair of upper flaps 72 of the outer box 12 are normally folded along the crease line from above the knob portion 28, and then the upper lid piece 68 is folded forward along the crease line, and further the insertion piece 70 is folded forward along the crease line. Then, it is inserted into the inside of the side face 18 and closed to complete the packaging of the packaging box 10 with the middle frame as shown in FIG. The contents 11 are held away from the side surfaces 58, 60, 62, and 64 of the outer box 12 and the bottom cover piece 66 in a shock-absorbing manner, and are safely accommodated in the outer box 12.

  When using the medicine of the contents 11 accommodated in the packaging box 10 with the middle frame, the upper lid piece 68 is pulled up and opened. Then, the pair of upper flaps 72 are opened, the knob portion 28 of the middle frame 14 is raised, and the knob portion 28 is held and pulled upward.

  According to the packaging box 10 and the middle frame 14 with the middle frame of this embodiment, the outer box 12 and the middle frame 14 are separate and easy to use, and the middle frame 14 has a simple structure consisting of side surfaces 18 and 20. The middle frame forming piece 16 is assembled easily and manufactured efficiently. Since the middle frame forming piece 16 is composed of the side surfaces 18 and 20 and has a small area, a large number of the middle frame forming pieces 16 can be punched from a single blank sheet, and can be obtained efficiently. Although the middle frame 14 is a small area composed of the side surfaces 18 and 20, the holding pieces 36 and 46 are raised from the portions continuing to the lower end portion 18c and the lower end portion 20b of the side surfaces 18 and 20 to form a three-dimensional shape. It can be reliably supported. The container 11 can be held away from the side surfaces 58, 60, 62, and 64 and the bottom cover piece 66 of the outer box 12, and can be safely stored and transported without any impact or vibration received from the outside. Can do. Since the side surfaces 18 and 20 bend and come into contact with the container 11, the side surfaces 18 and 20 can be held elastically. The holding pieces 36 and 46 are partially glued to each other to form a double structure, have high strength, and are safe even when an impact is applied from the outside. The pair of holding pieces 36 and 46 are automatically caused from the side surfaces 18 and 20 when the side surfaces 18 and 20 are bent away from each other when the accommodation 11 is put into the middle frame 14, and an assembling process is unnecessary. The holding pieces 36 and 46 are Y-shaped in a plan view, reliably hold the bottom portion of the storage object 11, and are provided with the projections 38 and 52, so that the storage object 11 is not displaced and is stable. The inclined portions 18e, 20c, 22a, and 22b are escaped when inserted into the outer box 12, and can be smoothly inserted without being caught when the inner frame 14 is inserted into the outer box 12. The inclined portion 18 b serves as a relief when the insertion piece 70 of the outer box 12 is placed inside the side surface 62, and can smoothly insert the insertion piece 70 and close the upper lid piece 68. Since the upper end portion 20a of the side surface 20 is provided at a position lower than the upper end portion 18a of the side surface 18 and the concave portion 42 is provided, the accommodation object 11 can be easily accommodated between the side surface 18 and the side surface 20. it can.

  Next, a second embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The packaging box 74 with an inner frame in this embodiment is provided with an outer box 12 similar to the above embodiment, and an inner frame 76 that is placed in the outer box 12 and holds the contents 11.

  The middle frame 76 is formed by assembling a middle frame forming piece 78 formed by punching out a single blank sheet such as cardboard in the same manner as the outer box 12. FIG. 4 is a development view of the middle frame forming piece 78 as viewed from the surface, and the side surface 18 and the side surface 20 are provided by being separated by a crease line 22. On the side edge of the side surface 20 opposite to the crease line 22, a glued piece 24 to be glued to the surface of the side surface 18 is provided by being separated by a crease line 26.

  At the upper end portion 18 a of the side surface 18, a knob portion 28 is provided by being separated by a knob fold line 30. A cutting line 80 is provided at a position near the lower end portion 18 c of the side surface 18. The cutting line 80 communicates with the side edge portion on which the crease line 22 is provided, and is inclined so as to approach the lower end portion 18c as it moves away from the crease line 22, and is bent in the middle to be parallel to the lower end portion 18c. Is a letter. The front end 80a of the cutting line 80 on the side opposite to the crease line 22 slightly exceeds the center of the width of the side surface 18 and reaches the vicinity of the side edge 18d, and becomes a semicircular shape with a small diameter toward the upper end 18a. It becomes a curved shape. An uncut portion 81 is provided in the middle of the cutting line 80.

  In addition, a folding line 82 is provided to connect the tip end 80a of the cutting line 80 and the lower end 18c, and the folding line 82 is substantially perpendicular to the cutting line 80 and the lower end 18c. A portion surrounded by the cutting line 80, the folding line 82, and the lower end portion 18 c is a holding piece 84. The holding piece 84 is formed by a portion in which the side surface 18 extends in the direction of the crease line 22, and has a long band shape along the lower end portion 18c. The tip end portion 84a of the holding piece 84 opposite to the folding line 82 is folded. The length reaches the extension line of the ruled line 22, and is formed by a straight line parallel to the folding line 82 and the folding line 22. A protrusion 86 that protrudes toward the upper end 18 a along the inclined portion of the cutting line 80 is provided on the cutting line 80 side portion of the distal end portion 84 a of the holding piece 84. A gap is formed in the vicinity of the protruding end of the protrusion 86 away from the cutting line 80. A portion of the distal end portion 84 a of the holding piece 84 on the lower end portion 18 c side is chamfered to form an inclined portion 88, which is a relief when inserted into the outer box 12. Near the center of the holding piece 84 in the longitudinal direction, a folding line 90 that is substantially parallel to the folding line 82 is provided. The folding line 90 extends to the cutting line 80 and the lower end 18c over the entire length of the holding piece 84. Communicate.

  In the side surface 20, the upper end portion 20 a is a straight line located closer to the end portion 18 c than the extension line of the end portion 18 a, and the lower end portion 20 b is a straight line located on the extension line of the end portion 18 c of the side surface 18. Between the upper end portion 20a and the lower end portion 20b of the side surface 20, a cutting line 80 and a holding line 94 that are symmetrical with the holding piece 84 are provided with the crease line 22 interposed therebetween. The holding piece 94 is also formed by a portion where the side surface 20 extends in the direction of the crease line 22, and an uncut portion 93 is provided in the middle of the cutting line 92. The front end portion 94 a of the holding piece 94 is continuous with the front end portion 84 a of the holding piece 84 on the extension line of the crease line 22, and is divided by the crease line 96. A portion of the tip end portion 94 a on the lower end portion 20 b side is chamfered at a corner portion to become an inclined portion 98 that is symmetrical with the inclined portion 88. The holding piece 94 is provided with folding lines 100 and 102 and projections 104 which are symmetrical with the folding lines 82 and 90 and the projections 86.

  Next, an example of a method for assembling the middle frame 76 will be described. Here, FIG. 4 shows the surface of the middle frame forming piece 78 of the middle frame 76. The folding method in which the front surface of the middle frame forming piece 78 is convex and the back surface is convex. Is called reverse folding.

  First, the paste 54 is applied to the back surface of the holding piece 94 between the folding line 102 and the tip end portion 94a. The paste 56 is also applied to the back surface of the glued piece 24 along the crease line 26 for a long time. Next, the crease line 22 is folded forward and the back surface of the holding piece 94 is glued to the back surface of the holding piece 84. Then, the crease line 26 is normally folded and the back surface of the glued piece 24 is glued to the surface of the side surface 18. The middle frame forming piece 78 is in a folded state, and the middle frame 76 is shipped in this folded state.

  Next, in a factory or the like for storing and packaging the contents 11, a force is applied to bring the crease line 22 and the crease line 26 closer to each other, and the side surfaces 18 and 20 are curved outward so as to be separated from each other. Create a space. At this time, the holding pieces 84 and 94 are pulled by the side surfaces 18 and 20 and separated from each other. However, since the vicinity of the distal end portions 84a and 94a is bonded with the glue 54, the folding lines 82 and 100 are normally folded, and the folding lines 90 and 102 are reversely folded, and like the above-described embodiment, they are Y-shaped in plan view, and are assembled along the lower end portions 18c and 20b below the space between the side surfaces 18 and 20. When the holding pieces 84 and 94 are raised from the side surfaces 18 and 20, the uncut portions 81 and 93 of the cutting lines 80 and 92 are broken. Next, the contents 11 are put into the space between the side surfaces 18 and 20 from the upper end portions 18a and 20a. The bottom surface of the container 11 is held in contact with the holding pieces 84 and 94 assembled in a Y shape. In addition, the protrusions 86 and 104 of the holding piece 84 and the holding piece 94 are located on the side of the bottom surface of the storage object 11 and are stabilized.

  The inner frame 76 containing the contents 11 is packed in the outer box 12. The inclined portions 18e, 20c, 88, and 98 serve as a relief when inserted into the outer box 12, and can be smoothly inserted.

  According to the packaging box 74 with the middle frame and the middle frame 76 of this embodiment, it is the same usage as the packaging box 10 with the middle frame, and has the same effect. Since the holding pieces 84 and 94 are continuous with each other, and the holding pieces 84 and 94 are provided with the uncut portions 81 and 93 at the cutting lines 80 and 92 that divide the side surfaces 18 and 20, the intermediate frame forming piece 78 is the other. It is not entangled with this member or the middle frame forming piece 78 of the same shape, and is stable during production and easy to handle.

  Next, a third embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The packaging box 106 with an inner frame in this embodiment is provided with an outer box 12 similar to that in the above embodiment and an inner frame 108 that is placed in the outer box 12 and holds the contents 11.

  The middle frame 108 is formed by assembling a middle frame forming piece 110 formed by punching out a single blank sheet such as cardboard in the same manner as the outer box 12. FIG. 5 is a developed view of the middle frame forming piece 110 as viewed from the surface, and the side surface 18 and the side surface 20 are provided by being separated by a crease line 22. On the side edge of the side surface 20 opposite to the crease line 22, a glued piece 24 to be glued to the surface of the side surface 18 is provided by being separated by a crease line 26. The side face 18 is not provided with a cutting line and a holding piece. A corner portion of the lower end portion 18c of the side surface 18 on the side of the crease line 22 is chamfered to form an inclined portion 88, which becomes a relief when inserted into the outer box 12.

  The side surface 20 is provided with a cutting line 112 at a position close to the lower end 20b. The cutting line 112 is a straight line that communicates with the side edge provided with the crease line 22 and is substantially parallel to the lower end 20b. The front end 112a of the cutting line 112 on the opposite side of the crease line 22 slightly exceeds the center of the width of the side surface 20 and reaches the vicinity of the crease line 26, and curves toward the upper end 20a in a semicircular shape with a small diameter. It becomes a shape. An uncut portion 114 is provided in the middle of the cutting line 112.

  In addition, a folding line 116 that connects the tip end 112a of the cutting line 112 and the lower end 20b is provided, and the folding line 116 is substantially perpendicular to the cutting line 112 and the lower end 20b. A portion surrounded by the cutting line 112, the folding line 116, and the lower end 20 b is a holding piece 118. The holding piece 118 is formed by a portion in which the side surface 20 extends in the direction of the crease line 22 and has a long strip shape along the lower end portion 20b. The front end portion 118a of the holding piece 118 on the crease line 22 side is a fold line 120. Through the side 18. That is, the folding line 120 is continuous with the crease line 22. A portion of the front end portion 118 a of the holding piece 118 on the lower end portion 20 b side is chamfered to form an inclined portion 98, which serves as a relief when inserted into the outer box 12. A folding line 122 that is substantially parallel to the folding line 116 is provided at a position closer to the distal end portion 118a than the center in the longitudinal direction of the holding piece 118. The folding line 122 is cut across the entire length of the holding piece 118. The wire 112 communicates with the lower end 20b.

  Next, an example of a method for assembling the middle frame 108 will be described. Here, FIG. 5 is a view of the surface of the middle frame forming piece 110 of the middle frame 108. The folding method in which the front surface of the middle frame forming piece 110 is convex and the back surface is convex. Is called reverse folding.

  First, the paste 54 is applied to the back surface of the holding piece 118 between the folding line 122 and the tip end portion 118a. The paste 56 is also applied to the back surface of the glued piece 24 along the crease line 26 for a long time. Next, the crease line 22 is folded forward and the back surface of the holding piece 118 is glued to the back surface of the side surface 18. Then, the crease line 26 is normally folded and the back surface of the glued piece 24 is glued to the surface of the side surface 18. The middle frame forming piece 110 is in a folded state, and the middle frame 108 is shipped in this folded state.

  Next, in a factory or the like for storing and packaging the contents 11, a force is applied to bring the crease line 22 and the crease line 26 closer to each other, and the side surfaces 18 and 20 are curved outward so as to be separated from each other. Create a space. At this time, the holding piece 118 is pulled by the side surface 20 and separated from the side surface 18, but since the vicinity of the tip end portion 118 a is adhered to the side surface 18 with the glue 54, the folding line 116 is forwardly folded and the folding line 122 is reversed The portion between the folding line 116 and the folding line 122 of the holding piece 118 is folded and connected to the space between the side surface 18 and the side surface 20 and passed to the space between the side surfaces 18 and 20. 18c and 20b are assembled. When the holding piece 118 is raised from the side surface 20, the uncut portion 114 of the cutting line 112 is broken.

  Next, the contents 11 are put into the space between the side surfaces 18 and 20 from the upper end 18a and the upper end 20a. The bottom surface of the container 11 is held in contact with the holding piece 118.

  The middle frame 14 containing the contents 11 is packed in the outer box 12. The inclined portions 18e, 20c, 88, and 98 serve as a relief when inserted into the outer box 12, and can be smoothly inserted.

  According to the packaging box 106 with a middle frame and the middle frame 108 in this embodiment, the usage method is the same as that of the packaging box 10 with a middle frame, and the same effect is obtained. The cutting line 112 and the folding lines 116 and 122 are provided only on the side surface 20, and the structure is simple and the manufacture is easy. Even with a weak force, the folding lines 116 and 122 can be bent, the uncut portion 114 can be broken, and the holding piece 118 can be assembled.

  Next, a fourth embodiment of the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. The packaging box 124 with a middle frame in this embodiment is provided with an outer box 12 similar to the above-described embodiment, and a middle frame 126 that is placed in the outer box 12 and holds the contents 11.

  The middle frame 126 is formed by assembling a middle frame forming piece 128 formed by punching out a single blank sheet such as cardboard, like the outer box 12. FIG. 6 is a developed view of the middle frame forming piece 128 as viewed from the surface, and the side surface 18 and the side surface 20 are provided by being separated by a crease line 22. A cutting line 130 is provided at a position near the lower end portion 18 c of the side surface 18. The cutting line 130 is a straight line that communicates with the side edge 18d and is substantially parallel to the lower end 18c. The cutting line 130 has a shape in which the front end part 130a on the side of the crease line 22 slightly exceeds the center of the width of the side face 18 and reaches the vicinity of the crease line 22, and is curved in a semicircular shape with a small diameter toward the upper end part 18a. Become. An uncut portion 131 is provided in the middle of the cutting line 130.

  In addition, a folding line 132 is provided to connect the tip end part 130a of the cutting line 130 and the upper end part 18a, and the folding line 132 is substantially perpendicular to the cutting line 130 and the upper end part 18a. Between the folding line 132 and the side edge 18d, folding lines 134, 136 substantially parallel to the folding line 132 are provided, and the folding lines 132, 134, 136 communicate with the upper end 18a and the cutting line 130, They are equally spaced from one another. The upper end portion 18 a is formed with a concave portion 133 that is recessed downward between the folding lines 132 and 134. Further, the side edge portion 18d is chamfered at a portion intersecting with the cutting line 130 to become an inclined portion 18f, which becomes a relief when inserted into the outer box 12.

  A portion between the cutting line 130 and the lower end portion 18 c is a holding piece 138. The holding piece 138 is formed by a portion in which the side surface 18 extends in the direction of the crease line 22 and has a long band shape along the lower end portion 18c. The tip end portion 138a of the holding piece 138 opposite to the crease line 22 is The length does not reach the extended line of the edge 18d, and is formed by a straight line substantially parallel to the side edge 18d.

  The side surface 20 is substantially symmetrical with respect to the side surface 18 with the crease line 22 in between. The cut line 130, the uncut portion 131, the folding lines 132, 134, 136, and the holding piece 138 are formed in the same manner as the side surface 18. Is provided. The front end 138a of the holding piece 138 opposite to the crease line 22 has a length that does not reach the extended line of the side edge 20d. Inclined portions 20e and 20f similar to the inclined portions 18e and 18f are provided. However, the upper end portion 20a has a shape different from that of the upper end portion 18a, and a concave portion 135 that is recessed downward is formed between the folding line 134 and the folding line 136.

  Next, an example of a method for assembling the middle frame 126 will be described. Here, FIG. 6 is a view of the surface of the middle frame forming piece 128 of the middle frame 126. The folding method in which the front surface of the middle frame forming piece 128 is convex and the back surface is convex. Is called reverse folding.

  First, the paste 54 is applied to the back surface of the holding piece 138 on the side surface 20, and the paste 56 is applied to a portion between the folding line 136 and the side edge. The glue 54 may be applied long along the crease line 22 or may be applied over a wide area.

  Thereafter, the crease line 22 is normally folded and the middle frame forming piece 128 is folded in half. The holding pieces 138 are glued together with glue 54, and the part between the folding line 136 and the side edge 18 d and the part between the folding line 136 and the side edge 20 d are glued with glue 56. The middle frame forming piece 128 is in a folded state, and the middle frame 126 is shipped in this folded state.

  Next, a force is applied so that the side edge portions 18d and 20d and the crease line 22 are brought close to each other in a factory or the like that houses and packs the contents 11. Then, as shown in FIG. 7 (b), the side surfaces 18 and 20 are folded outward so that the folding lines 134 are separated from each other, the folding lines 134 are forward-folded, the folding lines 132 and 136 are folded backward, and the inner sides are folded. Make a rectangular space in plan view. At this time, the doubly held holding piece 138 crosses the diagonal of the rectangular space between the side surfaces 18 and 20. When the side surfaces 18 and 20 are three-dimensionally assembled, the uncut portion 131 of the cutting line 130 is broken. Since the positions of the recesses 133 and 135 are shifted in the upper end portions 18a and 20a, when making the side surfaces 18 and 20 three-dimensional, it is easy to push the recesses 133 and 135 of the upper end portion 18a20a outward with a finger. The side surfaces 18 and 20 can be separated from each other.

  Next, the contents 11 are put into the space between the side surfaces 18 and 20 from the upper end portions 18a and 20a. The bottom surface of the container 11 is held in contact with the holding piece 138.

  The inner frame 126 containing the contents 11 is put in the outer box 12 and packaged. The inclined portions 18e, 18f, 88, 98 become a relief when inserted into the outer box 12, and can be smoothly inserted. Since the diagonal line of the inner space of the outer box 12 is slightly shorter than the length of the side surfaces 18 and 20 from the crease line 22 to the side edge 18d or the side edge 20d, the folding lines 134 are separated from each other by the accommodation 11. It can be put in a state of being folded outward and is accommodated without a gap between a pair of corners located on a diagonal line. The length of the holding piece 138 from the crease line 22 to the tip end portion 138a is substantially equal to the diagonal line, is not bent, and is positioned along the diagonal line.

  According to the packaging box with a middle frame 124 and the middle frame 126 in this embodiment, it is the same usage as the packaging box with a middle frame 10 and has the same effect. Even a small container 11 can be reliably held in a buffer. Moreover, the recessed parts 133 and 135 are formed in the upper end parts 18a and 20a, and the operation which separates the side surfaces 18 and 20 at the time of an assembly can be performed easily.

  The middle frame and the packaging box with a middle frame of the present invention are not limited to the above embodiment. The size of the middle frame, the width and length of the holding piece, the position and number of folding lines, and the like can be appropriately changed according to the contents. The shape of each member and the structure of the bottom lid piece, the top lid piece, etc. can also be freely designed for the outer box. The material of the middle frame may be made of a synthetic resin sheet other than cardboard.

10, 74, 106, 124 Packing box with middle frame 11 Contained item 12 Outer box 14, 76, 108, 126 Middle frame 16, 78, 110, 128 Middle frame forming pieces 18, 20 Side surface 22 Folded line 32 Slit ( Cutting line)
28 Knob part 30 Knob part crease line 34, 40, 48, 50, 82, 90, 100, 102, 122, 116, 136, 134, 132 Folding curve 36, 46, 84, 94, 118, 138 Holding piece 80 , 112, 130 Cutting line

Claims (5)

An inner frame that is provided separately from the outer box, holds the contents, and is received from the opening of the outer box,
The middle frame forming piece is provided with a pair of side surfaces and a crease line that is substantially perpendicular to the pair of side surfaces when used, and the side surface intersects the crease line. A cutting line is provided, and below the cutting line is a holding piece that holds the bottom of the stored item,
The pair of side surfaces are glued together at opposite ends to the crease line to form a space for accommodating the contents,
A middle frame comprising the holding piece formed by the middle frame forming piece at a portion where the pair of side surfaces extend in the direction of the crease line separating the pair of side surfaces, below the space.   The holding piece is provided with a plurality of folding lines intersecting the cutting line, the pair of side surfaces are curved outward so as to be separated from each other, and the spindle-shaped space is formed in a plan view on the inside. The inner frame according to claim 1, wherein the holding piece is bent toward the inside of the space along the folding line and is positioned inside the space in a plan view.   The holding pieces are respectively provided on the pair of side surfaces, and a part of the holding pieces is glued to each other to form a double structure. The holding pieces are provided with two folding lines, and are Y-shaped in plan view. The middle frame according to claim 1.   The middle frame is formed with a knob portion that is held when the middle frame is pulled up from the outer box, and a fold line for the knob portion is provided at a proximal end portion of the knob portion. frame. The outer box and the inner frame are separate bodies, and the outer box has a bottomed cylindrical shape that opens upward, and the inner frame is received from the opening of the outer box while holding the contents.
The middle frame is formed of a middle frame forming piece, and the middle frame forming piece is provided with a pair of side surfaces and a crease line that is substantially vertical in a use state that divides the pair of side surfaces. Is provided with a cutting line that intersects, and below the cutting line is a holding piece that holds the bottom of the contents,
The pair of side surfaces are glued together at opposite ends to the crease line to form a space for accommodating the contents,
The inner frame, wherein the holding piece formed by the middle frame forming piece at a portion where the pair of side surfaces extend in the direction of the crease line that divides the pair of side surfaces is assembled below the space. Packing box with.

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