JP5579458B2 - Carton intermediate molded body and package supply body - Google Patents

Description

  The present invention relates to a carton intermediate molded body for producing a carton, and in particular, a carton intermediate molded body having a cutting blade for cutting a package drawn from the carton, and a carton comprising the carton intermediate molded body It is related with the package supply body provided with.

  A roll around which a package such as a wrap film, an aluminum foil, or a cooking sheet is wound is widely distributed in the form of being accommodated in a carton which is a box made of paperboard, from the viewpoint of handling and safety and hygiene. As a configuration of such a carton, a structure composed of a housing portion that accommodates a roll and a lid portion that is rotatably connected to the housing portion is generally known. Moreover, it is common that the cutting blade for cut | disconnecting the package pulled out from the accommodating part is attached to the front wall of the cover part which is one of the box side walls.

  When a carton having the above-described configuration is used, the container is first gripped by one hand, and then the package stored in the container is pulled out of the container by the other hand. Next, a part of the front wall of the lid is pressed by the thumb of one hand, and the package is sandwiched between the front wall of the lid and the front wall of the housing. And the package pulled out from the accommodating part is cut | disconnected with a cutting blade by twisting a carton with one hand holding the accommodating part (for example, patent document 1).

JP 2008-265839 A

  By the way, when the package is cut in the carton, the tooth tip of the cutting blade attached to the front wall of the lid portion is inserted into the package drawn out from the accommodating portion, and then inserted into the package. The package is gradually cut open by the teeth of the cutting blade. At this time, in order to improve the cutting ability of the package in the cutting blade, in particular, the insertability of the cutting blade into the package, the tooth tip of the cutting blade is directed to the surface of the package, that is, the tooth tip of the cutting blade is accommodated. It is required to be directed to the inside of the part.

  On the other hand, from the state in which the tooth tip of the cutting blade is inserted into the package, as the package is subjected to an external force such as being pulled away from the housing portion, the tooth tip of the cutting blade inserted into the package also becomes the front wall of the housing portion. It will receive an external force that will be pulled away from. Therefore, whenever the cutting operation of the package is executed, the external force repeatedly acts on the cutting blade. As a result, the front wall of the lid is warped so that the tooth tip of the cutting blade is separated from the front wall of the housing portion. Was inviting the problem.

In addition, if the area is pressed against the container when cutting the package, for example, the central area of the lid, the external force is canceled out by the force from the fingertip applied to the central area. Therefore, the displacement of the tooth tip is also suppressed. On the other hand, in the area other than the central area, that is, the front wall of the lid portion that is not pressed against the housing portion at the time of cutting, no resistance acts against the external force in the direction away from the front wall of the housing portion. . Therefore, the displacement of the tooth tip as described above is not suppressed after all, and the front wall of the lid portion warps so that the tooth tip of the cutting blade is separated from the front wall of the housing portion. As a result, it is difficult to arrange the cutting edge of the cutting blade toward the surface of the package by repeating the cutting operation, the insertability of the cutting edge of the cutting blade is deteriorated, and the cutting performance of the package is lowered. I was invited.

  The present invention has been made in view of the above circumstances, and its object is to provide a carton intermediate molded body capable of suppressing a decrease in the cutting property of the package, and a carton comprising the carton intermediate molded body. It is to provide a package supplier.

The carton intermediate molded body according to claim 1 is a carton intermediate molded body comprising a flat cylindrical body formed by folding a paperboard box composed of a plurality of box side walls connected via a plurality of ruled lines with the plurality of ruled lines. One of the two cylindrical side walls connected via one ruled line among the plurality of ruled lines is along a direction in which the one ruled line side becomes a tooth base and the one ruled line extends. The cutting blade is attached, the two cylinder side walls are bent at the one ruled line so that the angle formed between the two cylinder side walls connected via the one ruled line is an acute angle, and the plurality of ruled lines are The two cylinder side walls have an annular ruled line, include other ruled lines different from the one ruled line, and the two cylinder side walls connected via the other ruled lines have an obtuse angle. that it is bent in the other border The gist.

  In the carton intermediate formed body according to claim 1, an angle formed between the cylindrical side wall to which the cutting blade is attached and the other cylindrical side wall connected to the tooth base side of the cutting blade on the cylindrical side wall is an acute angle. In addition, the two cylindrical side walls are bent along one ruled line. Therefore, as a result of attaching a folding fold to the paperboard so that the angle formed by the two cylinder side walls connected via the one ruled line becomes an acute angle, a box corresponding to the two cylinder side walls also in the finished carton A force that makes an acute angle with the side wall acts on the paperboard.

On the other hand, when the package pulled out from the carton is cut by the cutting blade, the tension acting on the package is transmitted to the tooth tip of the cutting blade, so that the package side wall also acts on the package. As a result of the transmitted tension, even the side wall of the box to which the cutting blade is attached is displaced in the direction in which the package is pulled out. That is, the angle formed by the box side wall to which the cutting blade is attached and the other box side wall connected to the tooth base side of the cutting blade on the box side wall becomes large. However, when the configuration according to claim 1 is adopted, the angle formed by the box side wall to which the cutting blade is attached and the other box side wall connected to the tooth root side of the cutting blade on the box side wall is an acute angle. Will continue to act on the paperboard due to the creases described above. As a result, even if the angle between the box side wall to which the cutting blade is attached and the other box side wall connected to the tooth base side of the cutting blade on the side wall becomes larger, the angle formed by the two box side walls The force that reduces the pressure is also applied by the crease. Even if the angle between the box side wall to which the cutting blade is attached and the other side wall connected to the tooth root side of the cutting blade on the side wall of the box is once increased, the displacement of the relative position is caused by the force of the crease. Will be reduced or eliminated. Therefore, when compared with a carton without creases, it is possible to maintain a state in which the tooth tip of the cutting blade is easily inserted into the package for a long period of time, and thus it is possible to suppress a decrease in the cutting performance of the cutting blade. .
In addition, when two box side walls connected via an annular ruled line are bent at the ruled line, the corners formed by the two box side walls are chamfered in a region surrounded by the annular ruled line. . On the other hand, if the angle formed by the two cylindrical sidewalls connected via the annular ruled line becomes an acute angle in the intermediate formed body, the crease is formed up to a region surrounded by the annular ruled line. Therefore, the chamfered portion described above is difficult to be formed.
In this regard, according to the carton intermediate molded body according to claim 1, the angle formed by the two cylindrical side walls connected via the annular ruled line is an obtuse angle, so that the shape of the chamfered portion as described above is a finished product. In a carton.

  The carton intermediate molded body according to claim 2, wherein the flat cylindrical body is a paperboard cylindrical body whose both ends are open, and the two cylindrical side walls connected via the one ruled line are the flattened bodies. The gist is to constitute the peripheral wall of the cylindrical body.

  If the cylinder is made of paperboard with both ends open, a flatter shape can be realized as compared with the cylinder made of paperboard with both ends closed. According to the carton intermediate formed body according to claim 2, the cylindrical side wall to which the cutting blade is attached and the other cylindrical side wall connected to the tooth root side of the cutting blade on the cylindrical side wall constitute the peripheral wall of the cylindrical body. Therefore, it is possible to configure the angle formed by the two cylindrical side walls at a smaller angle. Therefore, the angle formed by the two box side walls is smaller with respect to the box side wall to which the cutting blade is attached and the other box side wall connected to the tooth base side of the cutting blade on the box side wall. It is possible to give creases to the carton intermediate molded body.

  The carton intermediate molded body according to claim 3, wherein the flat cylindrical body has a rhombus in a cross section viewed from a direction parallel to the one ruled line, and two cylindrical side walls connected via the one ruled line. The gist is that the angle formed is 0 ° to 50 °.

  According to the carton intermediate molded body of the third aspect, the flat cylindrical body is configured so as to have a diamond shape with a flat cross section. That is, the outer peripheral surface of a flat cylinder is comprised by the four cylinder side walls which comprise the four sides of a rhombus, and the four corners equivalent to the four corners of a rhombus. The four corners are a pair of opposite corners where the angle (bending angle) formed by the pair of cylindrical side walls constituting the corner is an acute angle, and a pair of opposite corners where the bending angle is an obtuse angle. It is comprised by a corner | angular part.

  Here, when the flat cylindrical body having the four corners is deformed so as to approach the box, the bending angles at the pair of opposite corners change in the same manner. More specifically, the pair of opposing corners having a bending angle that is an acute angle changes so that the respective bending angle increases. Moreover, a pair of opposing corner | angular parts from which a bending angle becomes an obtuse angle changes so that each bending angle may become small. Therefore, in order to increase the angle formed by the two cylindrical side walls connected via one ruled line, in addition to the bending angle of the corner formed by the two cylindrical sidewalls, A force is required to increase the bending angle of the corners. Further, in a pair of opposite corners where the angle formed by the two cylindrical side walls is an obtuse angle, a force is required to reduce both the pair of angles. Therefore, the angle formed by the first cylindrical side wall and the second side wall is more equal to the number of the corners that must be changed together with the corner formed by the first cylindrical side wall and the second cylindrical side wall. It becomes easy to be held at an acute angle.

  The package supply body according to claim 4 is a package supply body including a package wound in a roll shape and a carton for storing the package, wherein the carton is according to claims 1 to 3. It consists of the carton intermediate molded body according to any one of the items.

  In the package supply body according to claim 4, an angle formed between the box side wall to which the cutting blade is attached and the other box side wall connected to the tooth base side of the cutting blade on the side wall is an acute angle. The force caused by the crease acts on the paperboard. Therefore, when compared with a carton without creases, it is possible to maintain a state in which the tooth tip of the cutting blade is easily inserted into the package for a long period of time, so that it is possible to suppress a decrease in the cutting performance of the cutting blade. .

The perspective view which shows the perspective structure of the package supply body concerning one Embodiment of this invention. Sectional drawing which shows the cross-sectional structure along the AA line of the package supply body shown in FIG. FIG. 3 is a development view of the carton as viewed from the front side of the paperboard constituting the carton according to the embodiment of the present invention. (A) The perspective view which shows the perspective structure of this carton intermediate molded object which looked at the carton intermediate molded object concerning one Embodiment of this invention from the front wall side, (b) The cross section in the AA line of Fig.4 (a) FIG. 4C is a perspective view showing a perspective structure of the carton intermediate molded body as viewed from the bottom wall side of the carton intermediate molded body according to the embodiment of the present invention.

  Hereinafter, an embodiment embodying a carton intermediate formed body according to the present invention will be described with reference to FIGS. First, the package supply body provided with a carton formed using the carton intermediate of the present embodiment will be described below. FIG. 1 is a perspective view showing a perspective structure before opening of a package supply body including a carton manufactured from a carton intermediate molded body according to the present embodiment. FIG. 2 is a developed view of the paperboard constituting the carton as seen from the surface of the carton.

  As shown in FIG. 1, a package supply body 1 includes a carton 2 that is a rectangular parallelepiped box formed by folding a paperboard such as a coated cardboard along a ruled line provided on the paperboard, A wrap film 3F as a package such as vinylidene is composed of a roll 3 that is wound around a paper core 3C in a roll shape.

  The carton 2 is formed in a bottomed box shape having an open top surface and accommodates the accommodating portion 4 that accommodates the roll 3 therein, and a lid portion 5 that is connected to the accommodating portion 4 and covers the opening of the accommodating portion 4. It is configured. The accommodating portion 4 includes a pair of front and rear front walls 4F and a back wall 4B standing on both front and rear edges of the bottom wall 4BT, and a pair of left and right end walls 4SL and 4SR standing on both left and right edges of the bottom wall 4BT. It consists of and. Further, a sub front wall 4Fd (see FIGS. 2 and 3) that is disposed so as to overlap the front wall 4F and contributes to improving the strength of the carton 2 is provided inside the housing portion 4. And the opening of the accommodating part 4 is formed by each upper end edge of the front wall 4F, the back wall 4B, and two end walls 4SL and 4SR.

  The lid 5 is disposed so as to face the outer surface of the front wall 4F of the housing 4 and the lid top wall 5T that is rotatably connected to the upper edge of the back wall 4B and covers the opening of the housing 4. The lid part front wall 5F and the lid part end walls 5SL and 5SR which are end walls of the lid part 5 are configured. A peripheral wall surrounding the roll 3 in the circumferential direction R of the roll 3 is connected via a ruled line, a front wall 4F, a sub-front wall 4Fd, a bottom wall 4BT, a back wall 4B, a lid top wall 5T, and a lid It is formed by the front wall 5F. That is, the peripheral wall surrounding the roll 3 is formed in a rectangular shape with ends when viewed from the axial direction A which is the direction of the central axis of the roll 3. Further, in the carton 2 of the present embodiment, the bottom wall 4BT, the front wall 4F, the back wall 4B, the end walls 4SL and 4SR, the auxiliary front wall 4Fd, the lid front wall 5F, the lid top wall 5T, and the lid A plurality of box side walls are constituted by the end walls 5SL and 5SR.

  The lid portion front wall 5F is bonded to the front wall 4F of the housing portion 4 via a plurality of bonding points 4Fc over the entire width in the axial direction A at the end on the bottom wall 4BT side. In addition, a perforation line 5Fm as an opening line that extends over the entire width in the axial direction A is formed at a substantially vertical center of the lid front wall 5F. The perforation line 5Fm has a substantially V shape whose apex is directed to the bottom wall 4BT side, and is configured such that the center in the longitudinal direction (axial direction A) becomes the apex of the V shape. The cutting direction of the perforation line 5Fm is a direction suitable for dividing the lid front wall 5F in the vertical direction into two along the V-shape. An open end 5E for starting the cutting of the lid front wall 5F along the perforation line 5Fm is provided at the lower right end of the perforation line 5Fm.

  When the unsealing end 5E is pulled to the front side from the front wall 4F of the housing portion 4, the perforation line 5Fm is cut from the right end to the left end along the longitudinal direction (axial direction A) of the lid front wall 5F. . By cutting the perforation line 5Fm, the lid front wall 5F is divided into two parts: a lower part bonded to the front wall 4F and an upper part continuous with the lid top wall 5T. The top end of the lid front wall 5F divided into two in the vertical direction is substantially V-shaped with the apex facing the bottom wall 4BT side, as in the shape of the perforation line 5Fm, and the longitudinal direction of the lid front wall 5F. The center in the (axial direction A) is formed to be the vertex of the V-shape. Then, the lid front wall 5F is divided into two in the vertical direction, so that the forced sealing of the carton 2 by the adhesive point 4Fc is released. In addition, when the lid top wall 5T is rotated in a direction away from the front wall 4F from the state where the lid front wall 5F is divided into two, the carton 2 is opened, and the wrap film 3F accommodated in the carton 2 is opened. It can be pulled out.

A cutting blade 6 is bonded to the back surface of the lid front wall 5F between the perforation line 5Fm of the lid front wall 5F and the front wall 4F of the housing 4. The cutting blade 6 extending in the longitudinal direction (axial direction A) of the lid front wall 5F has a substantially V shape with the apex facing the bottom wall 4BT, and in the longitudinal direction (axial direction A) of the lid front wall 5F. It is formed so that the center is the vertex of the V-shape, that is, similar to the perforation line 5Fm. Then, the lid front wall 5F is divided into two in the vertical direction, and the lower part of the lid front wall 5F is removed from the accommodating part 4, so that the cutting edge of the cutting blade 6 is exposed from the upper part of the lid front wall 5F. To come. According to the cutting blade 6 having such a configuration, after the wrap film 3F drawn along the front wall 4F from the inside of the housing portion 4 is inserted into the cutting blade 6 from the center in the axial direction A, the wrap film 3F is cut. Advances from the center in the axial direction A toward the end.

  A plurality of front projections FP projecting from the outer surface of the lid front wall 5F to the front side are provided at the center in the axial direction A on the upper side of the cutting blade 6 in the lid front wall 5F. The front projection FP indicates the center of the cutting blade 6 in the axial direction A, that is, the cutting start position of the cutting blade 6 through the user's sense of touch to the user who touched the front projection FP. Then, when the wrap film 3F is cut, first, from the state in which the carton 2 is opened, after the tip of the wrap film 3F is gripped with one hand, the tip of the wrap film 3F is brought to the front wall 4F. The wrap film 3 </ b> F is pulled out from the opening of the accommodating portion 4 in a shape along the line. Next, after the front convex portion FP is pressed against the front wall 4F with the thumb of the other hand so that the center portion of the carton 2 is gripped by the other hand, the carton 2 is moved in the circumferential direction R of the roll 3. Twisted. Thereby, after each tooth | gear of the center of the axial direction A in the cutting blade 6 is inserted in the wrap film 3F, the wrap film 3F is cut | disconnected over the full width of the axial direction by further twisting the carton 2. FIG. That is, cutting of the wrap film 3F is advanced from the center of the cutting blade 6 in the axial direction A toward both ends.

  Here, if it is the package supply body 1 which has the V-shaped cutting blade 6, it is optimal to perform the cutting | disconnection of the wrap film 3F with the cutting method mentioned above. However, some users also cut the wrap film 3F by, for example, tearing the wrap film 3F from one end of the carton 2 toward the other end in the package supply body 1 described above. Some users use cutting methods suitable for straight cutting blades. Therefore, in the present embodiment, in order to guide the user to a cutting method suitable for the V-shaped cutting blade 6, the back wall 4B and the lid top wall 5T are formed in addition to the front projection FP described above. The corner portion 9 is provided with a concave portion 10 in the form of chamfering.

  The concave portion 10 is provided along the axial direction A so that a part of the palm of the hand provided with the thumb on the front convex portion FP is accommodated in the concave portion 10 at the central portion in the axial direction A at the bent portion. Is provided. As shown in FIG. 2, the inclined surface 10a constituting the recess 10 is a flat surface in which the angle formed by, for example, the surface of the back wall 4B and the surface of the lid top wall 5T is a dominant angle (for example, 225 °). It is configured as. According to the concave portion 10 having such a configuration, the user can recognize how the palm of the hand holding the carton 2 should be arranged through visual and tactile senses. It is possible to guide the user to a cutting method suitable for the user.

  Next, the structure of the paperboard for forming the carton 2, that is, the paperboard cut according to the structure of the carton 2, will be described in more detail with reference to FIG. 3 is a direction substantially parallel to the central axis of the roll 3 in the carton 2 in a state where the roll 3 is accommodated. Therefore, in the following, the horizontal direction in FIG.

As shown in FIG. 3, a plurality of side wall portions divided by a plurality of ruled lines are connected to the paperboard cut according to the structure of the carton 2 via the ruled lines. Specifically, the cut paperboard is provided with a rectangular bottom wall portion 11 which becomes the bottom wall 4BT of the accommodating portion 4. A rectangular front wall portion 13 serving as the front wall 4F of the carton 2 is connected to the upper side of the bottom wall portion 11 in the figure via a ruled line 12 extending in the axial direction A. In the package supply body 1 which is a finished product, the back surface of the bottom wall portion 11 and the front wall portion of the bottom wall portion 11 are arranged so that the angle formed between the back surface of the front wall portion 13 and the back surface of the bottom wall portion 11 is substantially a right angle. The front wall portion 13 is bent along the ruled line 12 so that the back surface of the surface 13 faces the rear surface.

  A plurality of convex portions 13a serving as adhesion points 4Fc of the carton 2 are provided at the end portion on the bottom wall portion 11 side of the front wall portion 13 so as to protrude to the front side in the figure. In addition, a rectangular sub-front wall portion 15 serving as the sub-front wall 4Fd of the accommodating portion 4 is connected to the front wall portion 13 via a ruled line 14 extending in a direction parallel to the ruled line 12 (axial direction A). In the package supply body 1 that is a finished product, the sub-front wall portion 15 is bent along the ruled line 14 so that the back surface of the sub-front wall portion 15 is joined to the back surface of the front wall portion 13.

  On the lower side of the bottom wall portion 11 in the figure, a back wall portion 17 that becomes the back wall 4B of the accommodating portion 4 is connected via a ruled line 16 extending in a direction parallel to the ruled line 12 (axial direction A). In the package supply body 1 that is a finished product, the back surface of the bottom wall portion 11 and the back wall portion of the bottom wall portion 11 are formed so that the angle formed between the back surface of the back wall portion 17 and the back surface of the bottom wall portion 11 is substantially a right angle. The back wall portion 17 is bent along the ruled line 16 so that the back surface of the plate 17 faces the back surface.

  A lid top wall portion 19 serving as a lid top wall 5T of the carton 2 is connected to the back wall portion 17 via a ruled line 18 extending in a direction parallel to the ruled line 16 (axial direction A). Near the center of the ruled line 18 in the longitudinal direction, an annular ruled line, specifically, two ruled lines parallel to each other (ruled line 18a and ruled line 18b) are provided in the form of being divided into two near the center of the ruled line 18. Yes. In the package supply body 1 as a finished product, the lid top wall along the ruled line 18 so that the angle formed between the back surface of the lid top wall portion 19 and the back surface of the back wall portion 17 is substantially a right angle. The part 19 is bent. At this time, the lid top wall portion 19 and the back wall portion 17 are connected via the ruled line 18 and the two ruled lines 18a and 18b. Therefore, when the corner portion 9 is formed in the side wall portion connected via the ruled line 18, the above-described recess 10 is formed in a portion surrounded by the annular ruled line composed of the two ruled lines 18a and 18b.

  A lid front wall portion 21 that becomes the lid front wall 5F of the carton 2 is connected to the lid top wall portion 19 via a ruled line 20 extending in a direction parallel to the ruled line 18 (axial direction A). The lid front wall portion 21 is divided in the vertical direction by the above-described V-shaped perforation line 5Fm. A V-shaped cutting blade 6 for cutting the wrap film 3F is bonded to the back surface of the lid front wall portion 21 along the perforation line 5Fm. The lid front wall portion 21 is provided with a plurality of front projections FP in a central area in the direction in which the lid front wall portion 21 extends, and in a region above the perforation line 5Fm. A plurality of left semicircular cuts 21a constituting the adhesion point 4Fc are provided in a region below the perforation line 5Fm. Similarly, an open end 5E is provided at the upper right end of the region below the perforation line 5Fm. In the package supply body 1 that is a finished product, the front surface of the lid portion along the ruled line 20 so that the angle formed between the back surface of the lid top wall portion 19 and the back surface of the lid front wall portion 21 is substantially a right angle. The wall portion 21 is bent.

  Bottom side flaps 11L and 11R are formed to extend along the left-right direction (axial direction A) via ruled lines 31 at both ends of the bottom wall portion 11 in the left-right direction (axial direction A). The bottom flaps 11L and 11R have a width in the vertical direction substantially equal to a width in the vertical direction of the bottom wall portion 11, and a length in the axial direction A is substantially equal to the vertical width of the front wall portion 13 and the back wall portion 17. It is extended and formed in an equal form. Further, extension portions 11La and 11Ra are formed to extend from the front end portions of the bottom side flaps 11L and 11R via ruled lines 32, respectively. And in the package supply body 1 which is a completed product, extension part 11La, 11Ra is bend | folded along the ruled line 32 so that the back surface of bottom side flap 11L, 11R and the back surface of extension part 11La, 11Ra may oppose. In the following, the distance in the vertical direction in FIG. 3 is referred to as “width”, and the distance in the left-right direction (axial direction A) in FIG. 3 is referred to as “length”.

  Front side flaps 13 </ b> L and 13 </ b> R are formed to extend in the left-right direction through ruled lines 33 at both ends in the left-right direction of the front wall portion 13. Front side flap 13L. 13R is formed such that the width is substantially equal to the width of the front wall portion 13 and the length is shorter than the width of the bottom wall portion 11. An adhesive region 41 is provided on the surface (adhesive surface) of the front side flaps 13L and 13R. A half cut line 42 having a depth of 10% to 90%, preferably 30% to 80% of the thickness of the cardboard is provided in the bonding area 41 in a predetermined pattern. An adhesive such as an agent is applied.

  Back side flaps 17L and 17R are formed to extend in the left and right direction via ruled lines 34 at both ends in the left and right direction of the back wall portion 17. The rear side flaps 17L and 17R are formed so that the width becomes narrower in the middle from the state where the width is substantially equal to the width of the rear wall portion 17, and the length is shorter than the width of the bottom wall portion 11, and the front side flaps It is formed to be longer than the length of 13L, 13R. An adhesive region 43 is provided on the surface (adhesive surface) of the rear side flaps 17L and 17R. Similar to the front side flaps 13L and 13R, a half cut line 42 having a depth of 10% to 90% of the thickness of the cardboard, preferably a depth of 30% to 80%, is formed in the adhesive region 43 in a predetermined pattern. For example, an adhesive such as a hot melt adhesive is applied.

  And in the package supply body 1 which is a finished product, the back side flaps 17L, 17R are arranged on the back side flaps along the ruled lines 34, 33 so that the back side flaps 17L, 17R are arranged inside the accommodating portion 4 with respect to the front side flaps 13R, 13L. 17L, 17R and front side flaps 13R, 13L are bent. Further, the bottom flaps 11R and 11L are bent along the ruled line 31 so that the back surfaces of the bottom flaps 11R and 11L cover the surfaces of the back flaps 17R and 17L and the front flaps 13R and 13L. Since the half-cut line 42 is provided in the bonding regions 41 and 43, the force required when disassembling the end walls 4SR and 4SL, that is, the bottom side flaps 11R and 11L are replaced with the front side flaps 13R and 13L. And the force required when making it peel from back side flaps 17R and 17L is reduced. Therefore, in the package supply body 1 having the above-described configuration, the disassembly of the end walls 4SR and 4SL, and hence the disassembly of the housing portion 4 can be improved.

  Lid top surface side flaps 19 </ b> L and 19 </ b> R are extended and formed along the left-right direction at both ends in the left-right direction of the lid top wall portion 19 via ruled lines 35. The lid portion top surface side flaps 19L and 19R are formed to extend so that the width is substantially equal to the width of the lid portion top wall portion 19 and the length is smaller than the width of the front wall portion 13.

  Between the perforation line 5Fm and the lid top wall portion 19 at the left and right ends of the lid front wall portion 21, lid portion front side flaps 21L and 21R extend along the left and right directions via ruled lines 36. Are formed. The lid part front side flaps 21 </ b> L and 21 </ b> R are formed to be shorter than the width of the lid part top wall portion 19. And in the package supply body 1 which is a finished product, the lid part front side flaps 21R, 21L are arranged inside the lid part top surface side flaps 19R, 19L, and the surface of the lid part top surface side flaps 19R, 19L and The back surfaces of the lid front side flaps 21R and 21L are bonded with an adhesive. Thereby, lid part end walls 5SR and 5SL composed of the lid part top surface side flaps 19R and 19L and the lid part front side flaps 21R and 21L are formed. When the lid 5 rotates about the ruled line 18 to open and close the opening of the accommodating portion 4, the extension portions 11La and 11Ra engage and disengage from the lid portion front side flaps 21L and 21R, respectively. When the opening of the housing portion 4 is closed, a click sound is generated and the lid portion 5 is locked to the housing portion 4.

At both ends of the auxiliary front wall portion 15 in the axial direction A, prevention pieces 15 </ b> L and 15 </ b> R for extending the roll 3 from the opening of the accommodating portion 4 are extended and formed through ruled lines 37.
In the carton 2 that is a finished product, the prevention pieces 15L and 15R are bent along the ruled line 37 toward the surface side of the sub-front wall portion 15 and are arranged in a shape protruding from the housing portion 4. Thereby, even if the roll 3 accommodated in the accommodating part 4 tries to jump out of an opening, the both ends of the roll 3 are latched by the prevention pieces 15L and 15R, and the protrusion is prevented.

  By the way, when the wrap film 3F is cut in the package supply body 1 described above, the tension of the wrap film 3F is a force for separating the lid portion front wall 5F from the front wall 4F of the housing portion 4. Works. When the lid front wall 5F warps to the front side due to such force, the tooth tip of the cutting blade 6 attached to the tip of the lid front wall 5F is also greatly separated from the front wall 4F to the front side. . Under such a state, the tooth tip of the cutting blade 6 becomes difficult to be inserted into the wrap film 3F, resulting in a problem that the cutting property of the wrap film 3F is lowered. Therefore, in the intermediate molded body of the carton 2 of the present embodiment, a cutting blade is formed at a corner formed by the lid front wall 5F and the lid top wall 5T in order to suppress warpage of the lid front wall 5F to the front side. A crease is attached so that 6 is pressed against the front wall 4F of the accommodating portion 4.

  Hereinafter, the intermediate molded body of the carton 2 will be described with reference to FIGS. 4A is a perspective view showing a perspective structure of the intermediate molded body of the carton 2 as viewed from the lid front wall portion 21 side, and FIG. 4B is a line AA in FIG. 4A. FIG. 4C is a perspective view showing a perspective structure of the intermediate molded body of the carton 2 as viewed from the back wall portion 17 side.

  As shown in FIGS. 4A to 4C, the intermediate molded body of the carton 2 is arranged so that the inner surface of the bottom wall 4BT and the inner surface of the back wall 4B come close to each other, and the inner surface of the lid top wall 5T. And the inner surface of the front wall 4F are made up of a flat cylindrical body in which the carton 2 is flattened. The flat cylindrical body constituting the intermediate molded body of the carton 2 has a rhombus shape with a flat cross section, and the angle formed between the back surface of the lid front wall portion 21 and the back surface of the lid top wall portion 19 is a finished product. A certain package supply body 1 is bent at a ruled line 20 so as to have an acute angle (preferably 0 ° or more and 50 ° or less) than an angle (about 90 °) formed by the front wall 4F and the lid top wall 5T. Further, in the intermediate molded body of the carton 2, the angle formed between the back surface of the bottom wall portion 11 and the back surface of the back wall portion 17 is the angle formed between the bottom wall 4BT and the back wall 4B in the package supply body 1 that is also a finished product. It is bent at the ruled line 16 so as to have an acute angle (preferably 0 ° or more and 50 ° or less) than (about 90 °). Furthermore, in the intermediate molded body of the carton 2, the sub-front wall portion 15 is bent at the ruled line 14 so that the back surface of the sub-front wall portion 15 faces the back surface of the front wall portion 13, and the sub-front wall portion 15 Is adhered to the back surface of the front wall portion 13. And the back surface of the lower area | region of the lid part front wall part 21 to which the cutting blade 6 was attached, and the surface of the front wall part 13 are joined via the adhesion point 4Fc.

  In the intermediate molded body of the carton 2 in the present embodiment, a plurality of cylindrical side walls are formed by the bottom wall portion 11, the front wall portion 13, the back wall portion 17, the lid top wall portion 19, and the lid front wall portion 21. It is configured.

The intermediate molded body of the carton 2 having the above configuration is conveyed in a stacked state from a paperboard manufacturer to a manufacturer of the package supply body 1 or stored in the manufacturer of the package supply body 1 in a stacked state. It is common to do. When the intermediate molded body of the carton 2 is stacked, the back wall portion 17 and the lid top wall in the upper intermediate molded body are placed on the bottom wall portion 11 and the lid front wall portion 21 in the lower intermediate molded body. Portions 19 will be stacked. That is, the angle formed by the two cylindrical side walls (the lid top wall portion 19 and the lid front wall portion 21) connected via the ruled line 20 and the two cylindrical side walls (the bottom wall portion 11) connected via the ruled line 16. And the angle formed by the back wall portion 17) is approximately 0 °. In addition, an angle formed by two cylindrical side walls (the bottom wall portion 11 and the front wall portion 13) connected via the ruled line 12, and two cylindrical side walls (the rear wall portion 17 and the lid portion) connected via the ruled line 18. The angle formed by the top wall portion 19) is approximately 180 °. As a result, a crease is attached to the portion where the angle formed by the two cylindrical side walls is approximately 0 °, and the angle formed by the two cylindrical side walls is maintained as the conveyance period and the storage period become longer. A strong crease will be attached.

  In the intermediate molded body of the carton 2 having the above configuration, the lid front wall portion 21 and the lid top wall portion 19 are formed so that the angle formed by the lid front wall portion 21 and the lid top wall portion 19 is an acute angle. Are folded at the ruled line 20. Therefore, a crease is attached to the intermediate molded body so that the angle formed by the lid front wall portion 21 and the lid top wall portion 19 is smaller than 90 °. As a result, in the finished carton 2, the angle formed by the lid front wall 5F and the lid top wall 5T is greater than 90 °, and consequently the lid front wall 5F is prevented from warping to the front side. become able to. Therefore, the state in which the tooth tip of the cutting blade 6 can be easily inserted into the wrap film 3F can be kept longer, and a decrease in the cutting property of the wrap film 3F can be suppressed. Similarly, the bottom wall portion 11 and the back wall portion 17 are bent at the ruled line 16 so that the angle formed between the bottom wall portion 11 and the back wall portion 17 is an acute angle.

  Further, in the intermediate molded body of the carton 2, the bottom wall portion 11 and the front wall portion 13 are formed so that the angle formed between the bottom wall portion 11 and the front wall portion 13 becomes an obtuse angle (preferably 130 ° or more and 180 ° or less). Is folded at the ruled line 12, and the back wall portion 17 and the lid top wall are formed so that the angle between the back wall portion 17 and the lid top wall portion 19 is an obtuse angle (preferably 130 ° or more and 180 ° or less). The portion 19 is bent at the ruled line 18.

  In such an intermediate molded body of the carton 2, the flat cylindrical body is configured in a rhombus shape with a flat cross section, and therefore, the outer peripheral surface of the intermediate molded body has four cylindrical side walls that form four sides of the rhombus, and a rhombus And four corners corresponding to the four corners. The four corners are a pair of opposite corners where the angle (bending angle) formed by the pair of cylindrical side walls constituting the corner is an acute angle, and a pair of opposite corners where the bending angle is an obtuse angle. It is comprised by a corner | angular part.

  Here, when the intermediate molded body of the carton 2 is deformed so as to approach the shape of the carton 2 that is a box, the bending angle at the pair of opposite corners changes in the same manner. More specifically, a pair of opposite corners where the bending angle is an acute angle changes so that the respective bending angle is increased, and a pair of opposite corners where the bending angle is an obtuse angle is It changes so that each bending angle becomes small. That is, the back wall portion 17 and the bottom wall portion 11 connected via the ruled line 16 are connected so as to increase an angle between the lid top wall portion 19 and the lid front wall portion 21 connected via the ruled line 20. The intermediate molded body is deformed so that the angle formed by In addition, the back wall portion 17 and the lid top wall portion 19 connected to each other via the ruled line 18 are reduced so that the angle formed between the bottom wall portion 11 and the front wall portion 13 connected via the ruled line 12 is reduced. The intermediate molded body is deformed so that the angle formed by is reduced.

  Therefore, in order to increase the angle formed by the lid top wall portion 19 (first cylindrical side wall) and the lid front wall portion 21 (second cylindrical side wall), an angle formed by the two cylindrical side walls. In addition to the bending angle of the part, a force is required to increase the bending angle of the other corner part opposite to the corner part. Further, in a pair of opposing corners where the angle formed by the two cylindrical side walls is an obtuse angle, a force is required to reduce both the pair of angles. Therefore, the lid top wall portion 19 and the lid front wall portion 21 correspond to the number of corner portions that must be changed together with the corner portion constituted by the lid top wall portion 19 and the lid front wall portion 21. Is more easily maintained at an acute angle. As a result, in the finished carton 2, it is possible to more reliably suppress the lid front wall 5F from warping to the front side.

In addition, when the ruled line 18 for constituting the concave portion 10 is bent at an acute angle in the intermediate molded body, the bottom surface of the concave portion 10 is also folded when the carton intermediate molded body is stacked, that is, the shape of the concave portion 10. May collapse. In this regard, in the carton intermediate molded body, the angle formed by the two side wall portions connected via the ruled line 18 is an obtuse angle, and when the intermediate molded bodies are stacked, the angle is approximately 180 °. It can also prevent that the shape of such a recessed part 10 collapses.

As described above, according to the carton intermediate molded body and package supply body in the present embodiment, the following effects can be obtained.
(1) According to the carton intermediate formed body of the above-described embodiment, since the ruled line 20 is kept bent even in the course of the intermediate formed body, the crease is efficiently attached to the ruled line 20. Can do. And in the package supply body 1 after the assembly, the lid front wall 5F is pressed against the front wall 4F of the housing part 4 by the holding force of the shape based on such folds. Of course, the cutting blade 6 can be prevented from floating from the front wall 4F even after the start of use. Therefore, since the state in which the cutting blade is likely to bite into the wrap film 3F can be maintained for a long period of time compared to a carton without creases, it is possible to suppress a decrease in the cutting performance of the cutting blade 6. .

  (2) According to the carton intermediate molded body of the above-described embodiment, a flat cylindrical body made of paperboard having both ends opened, and a lid front wall portion 21 that is two cylindrical side walls connected via a ruled line 20; The lid top wall portion 19 constitutes a peripheral wall of the flat cylindrical body. If the cylinder is made of paperboard with both ends open, a flatter shape can be realized as compared with the cylinder made of paperboard with both ends closed. In the case of the carton intermediate molded body of the above embodiment, the lid portion front wall portion 21 which is the cylindrical side wall to which the cutting blade 6 is attached, and the other cylindrical side wall connected to the tooth base side of the cutting blade 6 on the cylindrical side wall. Since a certain lid part top wall part 19 comprises the surrounding wall of a cylinder, it is possible to comprise the angle which the said 2 cylinder side wall makes with a smaller angle. Therefore, with respect to the lid portion front wall 5F to which the cutting blade 6 is attached and the lid portion top wall 5T connected to the tooth root side of the cutting blade 6 in the lid portion front wall 5F, the two box side walls It is possible to give the carton intermediate molded body such that the angle formed by is smaller.

  (3) In the carton intermediate formed body of the above embodiment, the lid front wall portion 21 (lid front wall 5F) and the front wall portion 13 (front wall 4F) are joined, and the cross section has a rhombus shape. . The carton intermediate molded body is formed so that the angle formed by the lid front wall portion 21 and the lid top wall portion 19 is an acute angle, preferably 0 ° to 50 °. Therefore, the cylindrical carton intermediate molded body is formed so as to have a rhombus with a flat cross section, and thus the creases as described above can be reliably attached to the paperboard.

  (4) Moreover, since the carton intermediate molded body is formed in the form of the finished carton folded, it is possible to reduce the volume occupied by the carton intermediate molded body and to transport the carton intermediate molded body. Efficiency can be improved.

  (5) According to the carton intermediate formed body of the above embodiment, since the angle formed by the pair of cylindrical side walls connected via the ruled line 18 having an annular ruled line is an obtuse angle, the shape of the recessed part 10 that is a chamfered part is It becomes feasible in the finished carton 2.

In addition, you may change the said embodiment as follows.
In the above embodiment, the carton 2 having a recess 10 as a chamfer on the assumption, not limited to this, a carton recess is provided in the corner portions other than the corner portion 9 assumes, carton preform is The configuration may include a plurality of annular ruled lines .

  -The flat cylinder which comprises the carton intermediate molded object of the said embodiment is a rhombus shape with a flat cross section. However, the present invention is not limited thereto, and the cylindrical body has an acute angle formed by the lid front wall portion 21 and the lid top wall portion 19 connected to the tooth base side of the cutting blade 6 in the lid front wall portion 21. If so, for example, the cylindrical body may be configured so as to have a polygonal shape of five or more corners with a flat cross section. Even in such a configuration, the effects according to the above (1) and (2) can be obtained.

  In the above embodiment, the carton intermediate molded body is a cylindrical body in which the flaps constituting the end walls 4SR, 4SL and the lid end walls 5SR, 5SL are not joined, that is, a flat cylindrical body made of paperboard having both ends opened. Is configured. Not only this but the front side flaps 13L and 13R and bottom side flaps 11L and 11R are joined among the flaps which constitute end walls 4SR and 4SL and lid part end walls 5SR and 5SL. At the same time, the joined front side flaps 13L and 13R and bottom side flaps 11L and 11R may be folded inside the cylinder. Alternatively, the back side flaps 17L and 17R and the bottom side flaps 11L and 11R are joined to each other, and the joined back side flaps 17L and 17R and the bottom side flaps 11L and 11R are cylindrical. It may be folded inward. Alternatively, in the carton intermediate molded body, the lid portion front side flaps 21L and 21R and the lid portion top surface side flaps 19R and 19L are joined, and the joined lid portion front side flaps 21L and 21R and the lid portion top surface The side flaps 19R and 19L may be folded inside the cylinder. In other words, the carton intermediate molded body is a cylindrical body in which a part of each of the flaps constituting the end walls 4SR, 4SL and the lid end walls 5SR, 5SL is joined, and the joined flap is an inner side of the cylindrical body. It may be a flat tube with ends that are folded into two.

  -In the said embodiment, the flat cylinder which comprises a carton intermediate molded object is a cylinder by which the back surface of the cover part front wall part 21 and the surface of the front wall part 13 are joined. Not only this but the flat cylinder which comprises a carton intermediate | middle formation body may be a cylinder in which the cover part front wall part 21 and the front wall part 13 are not joined. Even if it is such a structure, the effect similar to said (1) can be acquired.

  -In the said embodiment, although it assumed that the shape of the cutting blade was V-shaped, it is not restricted to this, For example, even if it is a linear cutting blade, according to said (1)-(5). An effect can be obtained.

Next, a technical idea that can be grasped from the above embodiment and its modifications will be additionally described.
(Appendix 1)
In the carton intermediate formed body according to any one of claims 1 to 3,
Another ruled line different from the one ruled line comprises an annular ruled line,
A carton intermediate molded body, wherein the two cylinder side walls are bent at the other ruled lines so that an angle formed by the two cylinder side walls connected via the other ruled lines becomes an obtuse angle.

  When two box side walls connected via an annular ruled line are bent at the ruled line, a corner portion formed by the two box side walls is chamfered in a region surrounded by the annular ruled line. On the other hand, if the angle formed by the two cylindrical sidewalls connected via the annular ruled line becomes an acute angle in the intermediate formed body, the crease is formed up to a region surrounded by the annular ruled line. Therefore, the chamfered portion described above is difficult to be formed.

In this regard, according to the invention described in (Appendix 1), since the angle formed by the two cylindrical side walls connected via the annular ruled line is an obtuse angle, the shape of the chamfered portion as described above is a finished carton. Becomes feasible.

(Appendix 2)
The carton intermediate molded body according to any one of claims 1 to 3, wherein the cutting blade is attached to the cylindrical side wall over the entire width of the cylindrical side wall along a direction in which the ruled line extends. Carton intermediate molded body.

  According to the configuration described in (Appendix 2), a force by folding is applied to the entire cylindrical side wall in the direction in which the cutting blade extends. Therefore, when compared with a carton without creases, it is possible to maintain the state in which the tooth tip of the cutting blade is easily inserted into the package for a longer period of time, and thus further suppress the deterioration of the cutting property of the cutting blade. be able to.

  A: Axial direction, R: Circumferential direction, FP: Front convex part, 1 ... Package supply body, 2 ... Carton, 3 ... Roll, 3C ... Paper core, 3F ... Wrap film, 4 ... Housing part, 4B ... Back wall 4F ... front wall, 4BT ... bottom wall, 4Fc ... adhesion point, 4Fd ... sub-front wall, 4SL, 4SR ... end wall, 5 ... lid part, 5E ... open end, 5F ... front wall, 5T ... lid top wall 5Fm ... perforation, 5SL, 5SR ... end wall of the lid, 6 ... cutting blade, 9 ... corner, 10 ... recess, 11 ... bottom wall, 11L, 11R ... bottom flap, 11La, 11Ra ... extension, DESCRIPTION OF SYMBOLS 12 ... Ruled line, 13 ... Front wall part, 13a ... Convex part, 13L, 13R ... Front side flap, 14 ... Ruled line, 15 ... Sub front wall part, 15L, 15R ... Prevention piece, 16 ... Ruled line, 17 ... Back wall part , 17L, 17R ... back side flaps, 18, 18a, 18b ... ruled lines, 9 ... Lid top wall part, 19L, 19R ... Lid top side flap, 20 ... Ruled line, 21 ... Lid front wall part, 21a ... Cut, 21L, 21R ... Lid front side flap, 31, 32, 33 , 34, 35, 36, 37 ... ruled lines, 41, 43 ... adhesive regions, 42 ... half-cut lines.

Claims (4)

A carton intermediate molded body consisting of a flat cylindrical body in the form of a paperboard box composed of a plurality of box side walls connected via a plurality of ruled lines,
A cutting blade is attached to one of the two cylindrical side walls connected via one ruled line among the plurality of ruled lines along the direction in which the one ruled line extends and the one ruled line extends. Being
The two cylinder side walls are bent at the one ruled line so that the angle formed by the two cylinder side walls connected via the one ruled line is an acute angle ;
The plurality of ruled lines include other ruled lines having an annular ruled line and different from the one ruled line,
A carton intermediate molded body, wherein the two cylinder side walls are bent at the other ruled lines so that an angle formed by the two cylinder side walls connected via the other ruled lines becomes an obtuse angle . The flat cylinder is a paperboard cylinder with both ends open,
2. The carton intermediate molded body according to claim 1, wherein the two cylindrical side walls connected via the one ruled line constitute a peripheral wall of the flat cylindrical body. The flat cylindrical body is
The cross section seen from the direction parallel to the one ruled line is a rhombus,
The carton intermediate formed body according to claim 1 or 2, wherein an angle formed by two cylindrical side walls connected via the one ruled line is 0 ° or more and 50 ° or less. A package wound in a roll;
A package supplier comprising a carton containing the package,
The package supply body, wherein the carton comprises the carton intermediate molded body according to any one of claims 1 to 3.

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