JP2008273621A - Paper container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper container in which an opening for a straw mouth can be opened easily and occurrence of damage at the portion surrounded by a second half-cut or being turned up during handling such as transportation or the like can be prevented. <P>SOLUTION: In such the paper container as a bottomed body portion 3 and a top portion 4 closing the upper part thereof are formed of a cardboard laminating a thermoplastic resin layer on the surface and the back, a first half-cut 7 serving as a straw mouth 12 is provided in the top portion 4 from behind. A second half-cut 8 is provided to surround the first half-cut 7 from the surface and the straw mouth 12 is opened by delaminating the part surrounded by the second half-cut 8 from the surface. The second half-cut 8 is provided with a stripping beginning end portion 9 downward across a flat part 2 of the body portion 3 while crossing a top lateral rule 10 on the boundary of the top portion 4 and the body portion 3, and first folding lines 11 traversing the stripping beginning end portion 9 of the second half-cut 8 or aligned with the distal end 9a of the stripping beginning end portion 9 and continuous to the opposite ends of the top lateral rule 10 or the vicinity thereof are provided in the flat part 2 of the body portion 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a paper container that contains a beverage liquid such as milk or juice, and relates to a paper container in which a straw port is opened when a part surrounded by a half cut formed on a top surface is delaminated. Is.

As this type of paper container, as shown in FIG. 23, a bottomed body 3 and a top 4 closing the top are formed by a paperboard base material in which a thermoplastic resin layer is laminated on both front and back surfaces. A first half cut 7 serving as a straw port 12 is provided from the back surface, a second half cut 8 is provided so as to surround the first half cut 7 from the front surface, and a portion 8a surrounded by the second half cut 8 is provided from the front surface. The straw port 12 is opened by delamination, and the second half-cut 8 has a tip 9a of a peeling yarn end 9 serving as a clue for delamination at the boundary between the top 4 and the body 2. It is known that it is provided so as to coincide with the top horizontal ruled line 10 or to slightly protrude beyond the top horizontal ruled line 10 toward the plane part 2 side of the body part 3 (for example, see Patent Document 1).
Japanese Utility Model Publication No. 60-34572

  However, according to the conventional paper container, when the surface layer of the portion surrounded by the second half cut 8 is delaminated, first, the end of the delamination yarn mouth is used as the delamination clue of the second half cut 8. There is a problem that it is difficult to peel and grasp the portion surrounded by 9, and it is difficult to open the straw port 12.

  Further, in the conventional paper container, the second half-cut 8 is such that the tip 9a of the peeling yarn end portion 9 that becomes the delamination yarn opening coincides with the top horizontal ruled line 10 at the boundary between the top portion 4 and the body portion 3, or Since it is provided so as to slightly protrude toward the plane portion 2 side of the body portion 3 beyond the top horizontal ruled line 10, for example, during transportation, a portion surrounded by the peeling yarn end portion 9 of the second half-cut 8 is The tip 9a of the release thread end 9 receives a force in the peeling direction when it is easily hit and damaged by impact, making it difficult to delaminate, or when it rubs against the adjacent paper container due to vibration during transportation. Since it is easy, the part surrounded by the peeling yarn end part 9 of the second half-cut 8 is peeled off by delamination, which not only deteriorates the appearance but also causes the straw port 12 to open and the liquid inside may leak. There was a problem.

  An object of the present invention is to provide a paper container that facilitates opening of a straw port and can prevent the occurrence of damage or stagnation of a portion surrounded by the second half cut during handling such as transportation. It is in.

  In order to achieve the above object, the invention according to claim 1 is characterized in that a bottomed body portion and a top portion closing the top portion are formed by a paperboard base material in which a thermoplastic resin layer is laminated on both front and back surfaces, and the top portion is formed. Is provided with a first half cut that becomes a straw port from the back surface, a second half cut is provided from the front surface so as to surround the first half cut, and a portion surrounded by the second half cut from the front surface is delaminated. In this case, the second half-cut has a peeling yarn mouth end that becomes a peeling yarn mouth of the paper container beyond the top horizontal ruled line of the boundary between the top portion and the trunk portion. It is provided to face downward across the flat part, and the flat part of the body part crosses the peeling yarn mouth end of the second half-cut or coincides with the tip of the peeling yarn mouth end and both ends of the top horizontal ruled line. Or connected in the vicinity First forming auxiliary fold line is characterized by being provided that.

  According to the second aspect of the present invention, a bottomed body part and a top part closing the top part are formed by a paperboard base material in which thermoplastic resin layers are laminated on both front and back surfaces, and the top part becomes a straw port from the back side. 1 half cut is provided, a second half cut is provided so as to surround the first half cut from the surface, and the straw opening is opened by delamination of a portion surrounded by the second half cut from the surface The second half-cut is provided in a downward direction across the flat part of the body part, the end part of the release thread hole that becomes the threading point of the peeling crossing the top horizontal ruled line of the boundary between the top part and the body part. And the two planar ends of the second half-cut from the left and right release thread end portions or the vicinity thereof, and are connected to the corresponding one end or the vicinity of the top horizontal ruled line, respectively. First Wherein the shape auxiliary fold line is provided.

  According to a third aspect of the present invention, there is provided a substantially arc-shaped second forming auxiliary folding line that crosses the second half cut and is connected to both ends of the top horizontal ruled line or the vicinity thereof, at the top, according to the first or second aspect. It is provided.

  According to a fourth aspect of the present invention, in the top portion according to the first or second aspect, the top portion extends from the right or left of the second half cut or the vicinity thereof, and the corresponding one end of the top horizontal ruled line or the vicinity thereof. Two second forming auxiliary folding lines connected to are provided.

  In the invention according to claim 5, a bottomed body part and a top part closing the top part are formed by a paperboard base material in which thermoplastic resin layers are laminated on both front and back surfaces, and the top part becomes a straw port from the back side. 1 half cut is provided, a second half cut is provided so as to surround the first half cut from the surface, and the straw opening is opened by delamination of a portion surrounded by the second half cut from the surface The second half-cut is a paper container in which a peeling yarn end which is a peeling clue is provided between a top horizontal ruled line at a boundary between the top and the body and the first half cut. The top portion is provided with a third forming auxiliary folding line that crosses the peeling yarn end of the second half cut or coincides with the tip of the peeling yarn end and is connected to both ends of the top horizontal ruled line or the vicinity thereof. That And butterflies.

  In the invention according to claim 6, a bottomed body part and a top part closing the top part are formed by a paperboard base material in which thermoplastic resin layers are laminated on both front and back surfaces, and the top part becomes a straw port from the back side. 1 half cut is provided, a second half cut is provided so as to surround the first half cut from the surface, and the straw opening is opened by delamination of a portion surrounded by the second half cut from the surface The second half-cut is a paper container in which a peeling yarn end which is a peeling clue is provided between a top horizontal ruled line at a boundary between the top and the body and the first half cut. The top portion is provided with two third forming auxiliary folding lines extending from the left and right peeling thread end portions of the second half cut or the vicinity thereof and connected to the corresponding one ends of the top horizontal ruled lines or the vicinity thereof. It is characterized in that is.

  According to the paper container of the first aspect, the second half-cut has a peeling yarn mouth end which becomes a peeling yarn mouth thereof beyond the top horizontal ruled line of the boundary between the top and the trunk, and is on the flat portion of the trunk. Since it is provided across the board, there is little risk that the part surrounded by the end of the peeling thread mouth of the second half-cut will be damaged during transportation, and even if it hits the adjacent paper container due to vibration during transportation. The force in the peeling direction is not applied to the tip of the peeling yarn end portion, and there is no possibility that the portion surrounded by the peeling yarn mouth end portion of the second half cut is delaminated.

  In addition, the flat portion of the body portion crosses the peeling thread end of the second half cut or coincides with the tip of the peeling thread end and is connected to both ends of the top horizontal ruled line or the vicinity thereof. When opening the straw port, when the top horizontal ruled line is pushed down, the top horizontal ruled line that was in the mountain folded state is recessed into a valley folded state, and the flat part of the trunk is first molded The auxiliary fold line protrudes in a mountain fold state, and the tip of the part surrounded by the release yarn end that becomes the release port of the second half-cut provided on the flat portion of the trunk portion is delaminated and lifted up Therefore, it becomes easy to grasp the portion surrounded by the end portion of the peeling yarn mouth, the portion surrounded by the second half cut can be easily peeled, and the opening of the straw port can be easily performed.

  According to the paper container of the second aspect, the second half-cut has a peeling yarn mouth end which becomes a peeling yarn mouth thereof exceeding a top horizontal ruled line at a boundary between the top and the trunk, and on a flat portion of the trunk. Since it is provided across the board, there is little risk that the part surrounded by the end of the peeling thread mouth of the second half-cut will be damaged during transportation, and even if it hits the adjacent paper container due to vibration during transportation. The force in the peeling direction is not applied to the tip of the peeling yarn end portion, and there is no possibility that the portion surrounded by the peeling yarn mouth end portion of the second half cut is delaminated.

  Further, two first moldings that extend from the left and right peeling thread end ends of the second half cut or the vicinity thereof to the corresponding one end of the top horizontal ruled line or the vicinity thereof are formed on the flat portion of the body portion. An auxiliary fold line is provided. In particular, when the first forming auxiliary fold line extends from the vicinity of the second half cut with a slight gap between the first half fold line and the second half cut, the first fold line is provided. Since the forming auxiliary folding line and the second half cut are not in contact, when the first forming auxiliary folding line and the second half cut are in contact, the second half cut that can occur from the contact is eliminated.

  Further, when the top horizontal ruled line is pushed down at the opening of the straw port, the top horizontal ruled line which has been in the mountain folded state is recessed in a valley folded state, and the flat portion of the trunk portion is mountain folded at the first forming auxiliary folding line. The tip of the peeling yarn mouth end that becomes the state and protrudes and becomes the peeling pin of the second half-cut provided on the flat portion of the barrel portion is lifted by delamination so that it is surrounded by the peeling yarn mouth end. The part can be easily grasped, and the part surrounded by the second half-cut can be easily delaminated, so that the straw port can be easily opened.

  According to a third aspect of the paper container of the present invention, the top portion of the second container is substantially arc-shaped, which crosses the second half cut and is connected to both ends of the top portion horizontal ruled line or the vicinity thereof. Since the folding line is provided, when the top horizontal ruled line is pushed down when the straw port is opened, the flat part of the body part is in a mountain fold state at the first forming auxiliary folding line, and the top part is the second forming auxiliary folding line. Therefore, the top horizontal ruled line can be easily and surely recessed as a valley folded state, and the opening of the straw port can be more easily performed.

  According to a paper container of a fourth aspect, the top portion according to the first or second aspect extends from the right or left of the second half-cut or the vicinity thereof, respectively, and corresponds to one end or a corresponding one of the top horizontal ruled lines. Since the two second forming auxiliary folding lines connected to the vicinity thereof are provided, when the top side ruled line is pushed down at the opening of the straw port, the plane portion of the trunk portion is in a mountain folded state at the first forming auxiliary folding line. In addition, since the top portion is in a mountain folded state by the second forming auxiliary folding line, the top horizontal ruled line can be easily and reliably recessed as a valley folded state, and the opening of the straw port can be more easily performed. it can.

  According to the paper container of the fifth aspect, the second half-cut has a peeling yarn mouth end portion between which the peeling yarn mouth end is located between the top horizontal ruled line at the boundary between the top portion and the body portion and the first half cut. Therefore, during transportation, there is little risk of damage to the part surrounded by the end of the second half-cut peeling yarn mouth, and even if it hits the adjacent paper container due to vibration during transportation, the peeling A force in the peeling direction is not applied to the tip of the yarn end, and there is no possibility that the portion surrounded by the peeling yarn end of the second half-cut will be delaminated.

  Further, the top portion is provided with a third forming auxiliary folding line that crosses the peeling yarn mouth end of the second half cut or coincides with the tip of the peeling yarn mouth end and is connected to both ends of the top horizontal ruled line or the vicinity thereof. Therefore, when opening the straw opening, when the top horizontal ruled line is pushed down, the top horizontal ruled line that has been in the mountain folded state is recessed in a valley folded state, and the top part is in a mountain folded state by the third forming auxiliary folding line. Since the tip of the part surrounded by the release yarn end that becomes the release port of the second half-cut provided on the top part is peeled off and lifted up, the release yarn end part can be easily grasped. The portion surrounded by the two half cuts can be easily delaminated, and the straw port can be easily opened.

  According to the paper container of the sixth aspect, the second half-cut is formed such that the end of the release yarn mouth that becomes the release mouth is between the top horizontal ruled line at the boundary between the top and the body and the first half cut. Therefore, during transportation, the part surrounded by the end of the second half-cut peeling yarn mouth is less likely to be damaged by impact, and even if it hits the adjacent paper container due to vibration during transportation, the peeling A force in the peeling direction is not applied to the tip of the yarn end, and there is no possibility that the portion surrounded by the peeling yarn end of the second half-cut will be delaminated.

  Moreover, two third forming auxiliary folding lines that extend from the left and right peeling thread end portions of the second half cut or the vicinity thereof and connect to the corresponding one end or the vicinity of the top horizontal ruled line at the top portion, respectively. In particular, when the third forming auxiliary folding line extends from the vicinity of the second half cut with a slight gap between the third forming cut and the second half cut, the third forming auxiliary folding line is provided. Since the second half cut is not in contact with the second half cut, the second half cut that may occur from the contact is eliminated when the third forming auxiliary folding line is in contact with the second half cut.

  In addition, when the top horizontal ruled line is pushed down at the opening of the straw port, the top horizontal ruled line that has been in the mountain folded state is recessed in a valley folded state, and the top part is in the mountain folded state by the third forming auxiliary folding line. The tip of the portion surrounded by the release yarn end that becomes the separation yarn mouth of the second half-cut provided at the top is delaminated and lifted, so the portion surrounded by the separation yarn mouth end is It becomes easy to grasp, the part surrounded by the second half cut can be easily delaminated, and the opening of the straw port can be easily performed.

  Hereinafter, the best mode for carrying out a paper container according to the present invention will be described in detail with reference to the drawings.

  1 to 5 show a first embodiment of a paper container according to the present invention, FIG. 1 is a perspective view of the paper container of the first embodiment, and FIG. 2 is a side view of the top of the paper container of the first embodiment. FIG. 3 is a perspective view of the paper container of the first embodiment deformed by the pressing force shown in FIG. 2, FIG. 4 is a side view of FIG. 3, and FIG. 5 is a straw port. It is a perspective view of the paper container of 1st Example which shows the state which opened.

  This example is an example in which the present invention was applied to a gable top paper container 1A, and as shown in FIG. 1, formed by a paperboard substrate having thermoplastic resin layers laminated on both front and back surfaces. The upper part of the bottomed trunk | drum 3 of the structure where the adjacent part of the two plane parts 2 was connected at right angle becomes the structure closed with the top part 4 of the gable roof type | mold. The top part 4 of the gable roof type is constituted by a gable roof surface 5 and a gable wall 6 that closes both ends thereof.

  In this example, a first half cut 7 that is a straw port 12 from the back surface is provided on the wife wall 6, and a second half cut 8 is provided from the front surface so as to surround the first half cut 7. The second half-cut 8 has a peeling yarn mouth end portion 9 which becomes a peeling clue, beyond the top horizontal ruled line 10 at the boundary between the gable wall 6 of the gable roof type top 4 and the trunk portion 3, and the flat portion of the trunk portion 3. 2 is provided extending downward. Although the length of the 2nd half cut 8 from the part which cross | intersects the top part horizontal ruled line 10 to the front-end | tip is not specifically limited, It is preferable that it is 5-50 mm.

  In the flat surface portion 2 of the body portion 3, a first molding that crosses the peeling yarn end portion 9 of the second half cut 8 or coincides with the tip 9 a of the peeling yarn end portion 9 and is connected to both ends of the top horizontal ruled line 10 or in the vicinity thereof. An auxiliary folding line 11 is provided. In this example, the first auxiliary forming folding line 11 is provided so as to cross the peeling yarn end portion 9 of the second half cut 8 and to be connected to both ends of the top horizontal ruled line 10. The length over which the peeling yarn mouth end 9 of the second half cut 8 exceeds the first forming auxiliary folding line 11 is preferably 0 mm to 20 mm. Further, the first forming auxiliary folding line 11 has an arc shape in this example.

  According to the gable top paper container 1A having such a structure, the second half-cut 8 has a separation yarn mouth end portion 9 serving as a separation point of the delamination at the boundary between the end wall 6 of the gable roof type top portion 4 and the trunk portion 3. For example, even when the gable top paper container 1A is transported and is subjected to an impact, the peeling end of the second half-cut 8 is peeled over the top horizontal ruled line 10 and the flat part 2 of the body part 3. The portion surrounded by the portion 9 is less likely to be damaged, and even when it hits the adjacent gable top paper container 1A due to vibration during transportation, no force in the peeling direction is applied to the tip 9a of the peeling yarn end 9 and the second There is no risk of delamination of the portion surrounded by the release yarn end portion 9 of the half cut 8.

  Further, the flat part 2 of the body part 3 crosses the peeling yarn end 9 of the second half cut 8 or coincides with the tip 9a of the peeling yarn end 9 and is connected to both ends of the top horizontal ruled line 10 or the vicinity thereof. 1 Since the forming auxiliary folding line 11 is provided, when the top horizontal ruled line 10 is pushed down when the straw port 12 is opened (FIG. 2), the top horizontal ruled line 10 that has been in the mountain folded state becomes a valley folded state, The flat part 2 of the body part 3 protrudes in a mountain-folded state at the first forming auxiliary fold line 11, and the peeling yarn end part that becomes a peeling thread hole of the second half-cut 8 provided on the flat part 2 of the body part 3 Since the tip 9a of the part surrounded by 9 is separated and lifted (FIGS. 3 and 4), the part surrounded by the peeling yarn end part 9 becomes easy to grip, and the part 8a surrounded by the second half cut 8 Can be easily delaminated (FIG. 5). The opening of the low-port 12 easily.

  In addition, in this example, although the 1st shaping | molding auxiliary | assistant folding line 11 becomes circular arc shape, it is not limited to this, As shown in FIG. It may have a triangular shape with the tip 9a of the release yarn end 9 as a vertex. As shown in FIG. 7, the first forming auxiliary folding line 11 has the upper end of the release yarn end 9 of the second half cut 8. As shown in FIG. 8, the first forming auxiliary folding line 11 may have a polygonal shape that crosses the peeling yarn mouth end portion 9 of the second half cut 8, as shown in FIG. Thus, the 1st shaping | molding auxiliary | assistant folding line 11 may be formed with the discontinuous line.

  Moreover, in this example, the first half-cut 7 which becomes the straw port 12 from the back surface is provided on the wife wall 6, and the second half-cut 8 is provided so as to surround the first half-cut 7 from the front surface. As shown in FIG. 10, the first half cut 7 and the second half cut 8 may be provided on the gable roof surface 5.

  FIG. 11 is a perspective view showing a second embodiment of the paper container according to the present invention. Note that portions corresponding to those in the first embodiment are denoted by the same reference numerals.

  This example is also an example in which the present invention is applied to a gable top paper container 1A, and the gable top paper container 1A of this example is provided on the flat part 2 of the body part 3 on the left and right peeling thread ends of the second half cut 8. Two first forming auxiliary folding lines 11a and 11b are provided that extend from the portion 9 or the vicinity thereof to the left and right, respectively, and are connected to the corresponding one end of the top horizontal ruled line 10 or the vicinity thereof.

  In this example, the first forming auxiliary folding lines 11a and 11b are in contact with the second half cut 8, and the virtual line L connecting the first forming auxiliary folding line 11a and the first forming auxiliary folding line 11b is the peeling yarn mouth of the second half cut 8. The first forming auxiliary folding lines 11 a and 11 b are provided so as to cross the end portion 9 and are connected to both ends of the top horizontal ruled line 10. The length over which the peel yarn end portion 9 of the second half cut 8 exceeds the imaginary line L is preferably 0 mm to 20 mm.

  Moreover, although the 1st shaping | molding auxiliary | assistant folding line 11a, 11b connected with the virtual line L becomes the substantially circular arc shape which has a vertex in the part enclosed by the peeling yarn end part 9 of the 2nd half cut 8, Although not limited and not shown, like the first embodiment, the second half-cut 8 may have a triangular shape with the tip 9a of the peeling yarn mouth end 9 of the second half-cut 8 as the apex. It may be trapezoidal in which the upper bottom crosses the release yarn end portion 9 or a polygonal shape that crosses the release yarn end portion 9 of the second half cut 8. Further, the first forming auxiliary folding lines 11a and 11b themselves may be formed by discontinuous lines.

  Moreover, in this example, the first half-cut 7 which becomes the straw port 12 from the back surface is provided on the wife wall 6, and the second half-cut 8 is provided so as to surround the first half-cut 7 from the front surface. Although not limited to this, although not shown, the first half cut 7 and the second half cut 8 may be provided on the gable roof surface 5 as in the first embodiment.

  The gable top paper container 1A of this example configured in this way can also obtain the same effects as those of the first embodiment.

  FIG. 12 is a perspective view showing a third embodiment of the paper container according to the present invention. Note that portions corresponding to those in the first embodiment are denoted by the same reference numerals.

  In this example, the present invention is applied to a flat top paper container 1B having a flat roof, and is formed by a paperboard base material in which thermoplastic resin layers are laminated on both front and back surfaces as shown in FIG. And the upper part of the bottomed trunk | drum 3 of the structure where the adjacent part of the four plane parts 2 was connected at right angle becomes the structure closed with the top part 4 of the flat roof.

  In this example, similarly to the first embodiment, the top portion 4 is provided with a first half cut 7 that becomes a straw port 12 from the back surface thereof, and a second half cut 8 is formed so as to surround the first half cut 7 from the front surface. Is provided. The second half-cut 8 has a peeling yarn mouth end portion 9 that becomes a separation yarn mouth, and extends downward across the top horizontal ruled line 10 at the boundary between the top portion 4 and the trunk portion 3 and across the flat portion 2 of the trunk portion 3. It is extended. Although the length of the 2nd half cut 8 from the part which cross | intersects the top part horizontal ruled line 10 to the front-end | tip is not specifically limited, It is preferable that it is 5-50 mm like the 1st Example.

  Further, the flat part 2 of the body part 3 crosses the peeling yarn end 9 of the second half cut 8 or coincides with the tip 9a of the peeling yarn end 9 and is connected to both ends of the top horizontal ruled line 10 or the vicinity thereof. One molding auxiliary folding line 11 is provided. In this example, the first auxiliary forming folding line 11 is provided so as to cross the peeling yarn end portion 9 of the second half cut 8 and to be connected to both ends of the top horizontal ruled line 10. The length over which the peeling yarn mouth end 9 of the second half cut 8 exceeds the first forming auxiliary folding line 11 is preferably 0 mm to 20 mm, as in the first embodiment.

  In addition, the first forming auxiliary folding line 11 has an arc shape in this example, but is not limited to this, and although not shown, the second half-cut 8 is similar to the first example. It may have a triangular shape with the tip 9a of the release yarn end 9 as a vertex, may have a trapezoidal shape with the upper bottom crossing the release yarn end 9 of the second half cut 8, and the second half cut 8 may be formed in a polygonal shape that crosses the end portion 9 of the release yarn mouth, or may be formed by a discontinuous line.

  According to the flat-top paper container 1B having such a structure, the second half-cut 8 has a peeling yarn mouth end portion 9 serving as a clue for delamination exceeding the top horizontal ruled line 10 at the boundary between the top portion 4 and the trunk portion 3. Since it is provided downward over the flat surface portion 2 of the portion 3, for example, a portion surrounded by the peeling thread end portion 9 of the second half-cut 8 is received even when receiving an impact during transportation of the flat top paper container 1B. There is little risk of damage, and even if it hits the adjacent flat top paper container 1B due to vibration during transportation, no force in the peeling direction is applied to the tip 9a of the peeling yarn end 9 and the peeling end of the second half cut 8 is released. There is no possibility that the portion surrounded by 9 is delaminated.

  Further, the flat part 2 of the body part 3 crosses the peeling yarn end 9 of the second half cut 8 or coincides with the tip 9a of the peeling yarn end 9 and is connected to both ends of the top horizontal ruled line 10 or the vicinity thereof. 1 Since the forming auxiliary folding line 11 is provided, when the top horizontal ruled line 10 is pushed down when the straw port 12 is opened (see FIG. 2), the top horizontal ruled line 10 in the mountain folded state becomes a valley folded state and is recessed. The flat part 2 of the body part 3 protrudes in a mountain-folded state at the forming auxiliary folding line 11, and the peeling yarn end part 9 which becomes a peeling point of the second half-cut 8 provided on the flat part 2 of the body part 3. Since the tip 9a of the part surrounded by the delamination is lifted by delamination (see FIGS. 3 and 4), the part surrounded by the peeling yarn end part 9 becomes easy to grasp, and the part 8a surrounded by the second half cut 8 Can be easily delaminated (see FIG. 5). ), Easily opening of the straw hole 12.

  FIG. 13 is a perspective view showing a fourth embodiment of the paper container according to the present invention. Note that portions corresponding to those in the third embodiment are denoted by the same reference numerals.

  This example is also an example in which the present invention is applied to a flat-top paper container 1B having a flat roof. The flat-top paper container 1B of this example has a second half-cut 8 on the flat surface portion 2 of the body portion 3. Two first forming auxiliary folding lines 11a and 11b are provided that extend from the left and right release yarn end portions 9 or the vicinity thereof to the left and right and connect to the corresponding one ends of the top horizontal ruled lines 10 or the vicinity thereof.

  In this example, the first forming auxiliary folding lines 11a and 11b are in contact with the second half cut 8, and the virtual line L connecting the first forming auxiliary folding line 11a and the first forming auxiliary folding line 11b is the peeling yarn mouth of the second half cut 8. It is provided so as to cross the end portion 9 and to be connected to both ends of the top horizontal ruled line 10. The length over which the peel yarn end portion 9 of the second half cut 8 exceeds the imaginary line L is preferably 0 mm to 20 mm.

  Moreover, although the 1st shaping | molding auxiliary | assistant folding line 11a, 11b connected with the virtual line L becomes the substantially circular arc shape which has a vertex in the part enclosed by the peeling yarn end part 9 of the 2nd half cut 8, Although not limited and not shown, like the first embodiment, the second half-cut 8 may have a triangular shape with the tip 9a of the peeling yarn mouth end 9 of the second half-cut 8 as the apex. It may be trapezoidal in which the upper bottom crosses the release yarn end portion 9 or a polygonal shape that crosses the release yarn end portion 9 of the second half cut 8. Further, the first forming auxiliary folding lines 11a and 11b themselves may be formed by discontinuous lines.

  The flat top paper container 1B of this example configured in this way can also obtain the same effects as those of the third embodiment.

  FIG. 14 is a perspective view showing a fifth embodiment of the paper container according to the present invention. Note that portions corresponding to those in the third embodiment are denoted by the same reference numerals.

  This example is also an example in which the present invention is applied to a flat-top paper container 1B having a flat roof. The flat-top paper container 1B of this example is similar to the third example in that the flat part 2 of the body part 3 is a flat part 2. In addition, a first forming auxiliary folding line 11 is provided which crosses the peeling yarn end portion 9 of the second half cut 8 or coincides with the tip 9a of the peeling yarn end portion 9 and is connected to both ends of the top horizontal ruled line 10 or in the vicinity thereof. The top 4 is provided with a second forming auxiliary folding line 13 that crosses the second half cut 8 on the side of the top horizontal ruled line 10 from the first half cut 7 that becomes the straw port 12 and is connected to both ends of the top horizontal ruled line 10 or in the vicinity thereof. Yes. In this example, the second forming auxiliary folding line 13 is provided so as to be connected to both ends of the top horizontal ruled line 10.

  Further, the second forming auxiliary folding line 13 has an arc shape in this example, but is not limited to this, and although not shown, it is the same as the first forming auxiliary folding line 11 shown in the first embodiment. Moreover, it may have a substantially triangular shape, may have a trapezoidal shape, may have a polygonal shape, or may be formed by discontinuous lines. Further, in this example, the second forming auxiliary folding line 13 has the same shape and symmetry as the first forming auxiliary folding line 11, but it is not necessarily required to have the same shape and symmetry as the first forming auxiliary folding line 11.

  Since the other configuration is substantially the same as that of the third embodiment, the description of the third embodiment is used.

  In the flat top paper container 1B of this example configured as described above, when the top horizontal ruled line 10 is pushed down when the straw port 12 is opened, the flat surface portion 2 of the body portion 3 is in a mountain folded state at the first forming auxiliary folding line 11. And the top 4 is in a mountain fold state at the second forming auxiliary fold line 13, whereby the top horizontal ruled line 10 in the mountain fold state can be easily and reliably recessed as a valley fold, and the straw port 12 Opening can be performed more easily.

  FIG. 15 is a perspective view showing a sixth embodiment of the paper container according to the present invention. Note that portions corresponding to those in the third embodiment are denoted by the same reference numerals.

  This example is also an example in which the present invention is applied to a flat-top paper container 1B having a flat roof. The flat-top paper container 1B of this example is similar to the third example in that the flat part 2 of the body part 3 is a flat part 2. In addition, a first forming auxiliary folding line 11 is provided which crosses the peeling yarn end portion 9 of the second half cut 8 or coincides with the tip 9a of the peeling yarn end portion 9 and is connected to both ends of the top horizontal ruled line 10 or in the vicinity thereof. The top 4 extends from the first half-cut 7 serving as the straw port 12 to the left and right sides of the second half-cut 8 on the side of the top horizontal ruled line 10 or the vicinity thereof. Two second forming auxiliary folding lines 13a and 13b connected to the vicinity are provided. In this example, the second forming auxiliary folding lines 13a and 13b are in contact with the left and right sides of the second half cut 8, respectively, and are provided so as to extend from the second half cut 8 to the left and right and connect to corresponding one ends of the top horizontal ruled lines 10, respectively. Yes.

  Further, the second forming auxiliary folding lines 13a and 13b are arc-shaped in this example, but are not limited to this, and although not shown, the first forming auxiliary folding line 11 shown in the first embodiment is used. Similarly, it may be substantially triangular, trapezoidal, or polygonal. Moreover, the 2nd shaping | molding auxiliary | assistant folding lines 13a and 13b may be formed with the discontinuous line. Further, the second forming auxiliary folding line 13 does not need to be isomorphic with the first forming auxiliary folding line 11.

  Since the other configuration is substantially the same as that of the third embodiment, the description of the third embodiment is used.

  In the flat top paper container 1B of this example configured as described above, when the top horizontal ruled line 10 is pushed down when the straw port 12 is opened, the flat surface portion 2 of the body portion 3 is in a mountain folded state at the first forming auxiliary folding line 11. And the top 4 is in a mountain fold state at the second forming auxiliary fold line 13, whereby the top horizontal ruled line 10 in the mountain fold state can be easily and reliably recessed as a valley fold, and the straw port 12 Opening can be performed more easily.

  FIG. 16 is a perspective view showing a seventh embodiment of the paper container according to the present invention. Note that portions corresponding to those in the fourth embodiment are denoted by the same reference numerals.

  This example is also an example in which the present invention is applied to a flat-top paper container 1B having a flat roof. The flat-top paper container 1B of this example is similar to the fourth example in that the flat part 2 of the body part 3 is a flat part 2. In addition, two first forming auxiliary folding lines 11a and 11b extending left and right from the left and right release yarn end portions 9 of the second half cut 8 or the vicinity thereof and connected to corresponding ends of the top horizontal ruled line 10 or the vicinity thereof, respectively. Furthermore, the second forming auxiliary folding line connecting the second half cut 8 across the top half horizontal ruled line 10 on the side of the top horizontal ruled line 10 from the first half cut 7 serving as the straw port 12 is connected to both ends or the vicinity thereof. 13 is provided. In this example, the second forming auxiliary folding line 13 is provided so as to be connected to both ends of the top horizontal ruled line 10.

  Further, in the second forming auxiliary folding line 13, in this example, a trapezoidal shape in which the upper base crosses the position crossing the second half cut 8 is limited to this as in the fifth and sixth embodiments. Not.

  Other configurations are substantially the same as those of the fourth embodiment, and thus the description of the fourth embodiment is used.

  The flat top paper container 1B of this example configured as described above can also obtain the same effects as those of the sixth embodiment.

  FIG. 17 is a perspective view showing an eighth embodiment of the paper container according to the present invention. Note that portions corresponding to those in the fourth embodiment are denoted by the same reference numerals.

  This example is also an example in which the present invention is applied to a flat-top paper container 1B having a flat roof. The flat-top paper container 1B of this example has a second half-cut 8 on the flat surface portion 2 of the body portion 3. Two first forming auxiliary folding lines 11a and 11b extending from the left and right release thread end portions 9 or the vicinity thereof to the left and right respectively and connected to the corresponding one ends of the top horizontal ruled lines 10 or the vicinity thereof are further provided. Furthermore, it extends from the left and right sides of the second half-cut 8 or the vicinity thereof on the top side horizontal ruled line 10 side from the first half cut 7 that becomes the straw port 12, and is connected to the corresponding one end of the top side horizontal ruled line 10 or the vicinity thereof. Two second forming auxiliary folding lines 13a and 13b are provided. In this example, the second forming auxiliary folding lines 13a and 13b are provided so as to be in contact with the left and right sides of the second half cut 8, respectively, extending from the second half cut 8 to the left and right, and connected to corresponding one ends of the top horizontal ruled lines 10. ing.

  In addition, the second auxiliary forming folding lines 13a and 13b are trapezoidal in this example, but are not limited thereto.

  Since the other configuration is the same as that of the fourth embodiment, the description of the fourth embodiment is cited.

  The flat top paper container 1B of this example configured as described above can also obtain the same effects as those of the sixth embodiment.

  18 to 20 show a ninth embodiment of the paper container according to the present invention, FIG. 18 is a perspective view of the paper container of the ninth embodiment, and FIG. 19 is a side view of the top of the paper container of the ninth embodiment. FIG. 20 is a perspective view of the paper container of the ninth embodiment showing a state in which the straw port is opened, which is deformed by applying a downward pressing force to the ruled line. Note that portions corresponding to those in the first embodiment are denoted by the same reference numerals.

  This example is an example in which the present invention is applied to a gable top paper container 1A, and the gable top paper container 1A of this example is provided with a first half cut 7 that becomes a straw port 12 from the back surface of the gable roof surface 5. The second half cut 8 is provided so as to surround the first half cut 7 from the surface. In the second half cut 8, the release yarn end 9 serving as a release clue is provided between the top horizontal ruled line 10 at the boundary between the gable roof surface 5 and the trunk portion 3 and the first half cut 7.

  On the gable roof surface 5, a third auxiliary forming folding line 14 that crosses the peeling yarn end 9 of the second half cut 8 or coincides with the tip 9 a of the peeling yarn closing end 9 and is connected to both ends of the top horizontal ruled line 10 or the vicinity thereof. Is provided. In this example, the third forming auxiliary folding line 14 is provided so as to connect the peeling yarn mouth end 9 of the second half cut 8 to both ends of the top horizontal ruled line 10.

  According to the gable top paper container 1A having such a structure, the second half-cut 8 has a peeling yarn mouth end portion 9 serving as a separation yarn opening at the top horizontal ruled line at the boundary between the gable roof surface 5 at the top portion 4 and the trunk portion 3. 10 and the first half-cut 7, for example, even during the transport of the gable top paper container 1 </ b> A, even if it receives an impact, the portion surrounded by the release yarn end portion 9 of the second half-cut 8 is There is little risk of damage, and even if it strikes the adjacent gable top paper container 1A due to vibration during transportation, no force in the peeling direction is applied to the tip 9a of the peeling yarn mouth end 9, and the peeling yarn mouth end of the second half-cut 8 There is no possibility that the portion surrounded by 9 is delaminated.

  Further, the gable roof surface 5 of the top portion 4 crosses the peeling thread end 9 of the second half cut 8 or coincides with the tip 9a of the peeling thread end 9 and is connected to both ends of the top horizontal ruled line 10 or the vicinity thereof. 3 Since the forming auxiliary folding line 14 is provided, when the top horizontal ruled line 10 is pushed down when the straw port 12 is opened, the top horizontal ruled line 10 that has been in the mountain folded state becomes a valley folded state, and the gable of the top 4 The roof surface 5 protrudes in a mountain-folded state at the third shaping auxiliary folding line 14, and is a portion surrounded by a peeling yarn end portion 9 that becomes a peeling clue of the second half cut 8 provided on the gable roof surface 5. Since the tip 9a delaminates and floats (FIG. 19), the portion surrounded by the peeling yarn end portion 9 can be easily grasped, and the portion 8a surrounded by the second half cut 8 can be easily delaminated. Naru (Figure 20), straw 12 opening easily.

  In addition, in this example, although the 3rd shaping | molding auxiliary | assistant fold line 14 becomes circular arc shape, it is not limited to this, Although not shown in figure, the 3rd shaping | molding auxiliary fold line 14 is the peeling yarn mouth end of the 2nd half cut 8. It may have a triangular shape with the tip 9a of the portion 9 as the apex, or may have a trapezoidal shape in which the upper bottom crosses the peeling yarn mouth end 9 of the second half cut 8, or the second half cut 8 It may be a polygonal shape that crosses the release yarn end 9 or may be formed by a discontinuous line.

  FIG. 21 is a perspective view showing a tenth embodiment of the paper container according to the present invention. Note that portions corresponding to those in the ninth embodiment are denoted by the same reference numerals.

  This example is also an example in which the present invention is applied to a gable top paper container 1A, and the gable top paper container 1A of this example is provided on the gable roof surface 5 on the left and right peeling thread end portions 9 of the second half cut 8. Two third forming auxiliary folding lines 14a and 14b are provided which extend from the vicinity to the left and right respectively and connect to one end corresponding to the top horizontal ruled line 10 or the vicinity thereof.

  In this example, the third forming auxiliary folding lines 14 a and 14 b extend from the vicinity of the second half cut 8 to the left and right with a slight gap S between the second half cut 8 and the top horizontal ruled line 10. Each is provided so as to be connected to a corresponding one end. Further, the third forming auxiliary folding lines 14a and 14b are arc-shaped in this example, but are not limited thereto.

  Since the other configuration is the same as that of the ninth embodiment, the description of the ninth embodiment is cited.

  The gable top paper container 1A of the present example configured as described above can also obtain the same effect as that of the ninth embodiment. In particular, the third forming auxiliary folding lines 14a and 14b are the second half-cut 8 and If the second half-cut 8 extends from the vicinity of the second half-cut 8 with a slight gap S between the third and the second half-cut 8, the third half-cut 8 is not in contact with the second half-cut 8. When 14a, 14b and the second half-cut 8 are in contact with each other, the second half-cut 8 can be prevented from twisting from this contact point.

  FIG. 22 is a perspective view showing an eleventh embodiment of the paper container according to the present invention. Note that portions corresponding to those in the third embodiment are denoted by the same reference numerals.

  This example is an example in which the present invention is applied to a flat top paper container 1B having a flat roof, and the flat top paper container 1B of this example is a first half cut that forms a straw port 12 on the top 4 from its back surface. 7 is provided, and a second half cut 8 is provided so as to surround the first half cut 7 from the surface. In the second half cut 8, a peeling yarn end portion 9 that becomes a peeling clue is provided between the top horizontal ruled line 10 at the boundary between the top portion 4 and the body portion 3 and the first half cut 7.

  The top portion 4 includes a third forming auxiliary folding line 14a extending left and right from the left and right release yarn end portions 9 of the second half cut 8 or the vicinity thereof and connected to the corresponding one end of the top horizontal ruled line 10 or the vicinity thereof, 14b is provided. In this example, the third forming auxiliary folding lines 14 a and 14 b extend from the vicinity of the second half cut 8 to the left and right with a slight gap S between the second half cut 8 and the top horizontal ruled line 10. Each is provided so as to be connected to a corresponding one end. Further, the third forming auxiliary folding lines 14a and 14b are arc-shaped in this example, but are not limited thereto.

  According to the flat top paper container 1B having such a structure, the second half-cut 8 has a peeling yarn mouth end portion 9 serving as a separation yarn mouth and the top horizontal ruled line 10 at the boundary between the top portion 4 and the body portion 3 and the first half cut 8. Since it is provided between the half-cut 7, for example, during transportation of the flat-top paper container 1 </ b> B, there is a possibility that the portion surrounded by the peeling thread end portion 9 of the second half-cut 8 may be damaged even when receiving an impact. Even when it hits the adjacent gable top paper container 1B due to vibration during transportation, no force in the peeling direction is applied to the tip 9a of the peeling yarn end 9 and it is surrounded by the peeling yarn end 9 of the second half cut 8. There is no risk of delamination of the part.

  In addition, the top portion 4 extends from the vicinity of the second half cut 8 to the left and right and is connected to the corresponding one end of the top horizontal ruled line 10 with a slight gap S between the top half 4 and the second half cut 8. Since the third forming auxiliary folding lines 14a and 14b are provided, when the top horizontal ruled line 10 is pushed down when the straw port 12 is opened, the top horizontal ruled line 10 that has been in the mountain fold state becomes a valley folded state and is recessed. 4 is projected in a mountain-folded state at the third forming auxiliary folding lines 14a and 14b, and the tip 9a of the portion surrounded by the peeling yarn end portion 9 which becomes the peeling yarn opening of the second half cut 8 provided on the top portion 4 Is peeled off and floats up, so that the portion surrounded by the release yarn mouth end 9 can be easily grasped, and the portion 8a surrounded by the second half-cut 8 can be easily delaminated. Open The easily.

  In addition, in this example, although the 3rd shaping | molding auxiliary | assistant folding lines 14a and 14b are circular arc shape, it is not limited to this, Moreover, 3rd shaping | molding auxiliary folding lines 14a and 14b itself are formed with a discontinuous line. It may be.

  Further, in this example, the third forming auxiliary folding lines 14 a and 14 b extend from the vicinity of the second half cut 8 to the left and right with a slight gap S between the second half cut 8 and the top horizontal ruled line 10. Although it is provided so as to be connected to one end corresponding to each other, it may be provided so as to contact the second half cut 8 and extend from the second half cut 8 to the left and right to be connected to each corresponding one end of the top horizontal ruled line 10. Good. If the third forming auxiliary folding lines 14a, 14b extend from the vicinity of the second half cut 8 with a slight gap S between the second half cut 8 as in this example, the third forming aid Since the folding lines 14a, 14b and the second half cut 8 are not in contact, when the third forming auxiliary folding lines 14a, 14b and the second half cut 8 are in contact, the second half cut 8 may bend from this contact point. Disappear.

1 is a perspective view showing a first embodiment of a paper container according to the present invention. It is a perspective view when a downward pressing force is applied to the top horizontal ruled line of the paper container of the first embodiment. It is a perspective view of the paper container of 1st Example deform | transformed by the pressing force by FIG. FIG. 4 is a side view of FIG. 3. It is a perspective view of the paper container of 1st Example which shows the state which opened the straw port. It is a perspective view of the paper container which shows the other examples of the 1st shaping auxiliary fold line. It is a perspective view of the paper container which shows the other examples of the 1st shaping auxiliary fold line. It is a perspective view of the paper container which shows the other examples of the 1st shaping auxiliary fold line. It is a perspective view of the paper container which shows the other examples of the 1st shaping auxiliary fold line. It is a perspective view of the paper container which shows the other example of the location in which a 1st half cut and a 2nd half cut are provided. It is a perspective view which shows 2nd Example of the paper container which concerns on this invention. It is a perspective view which shows 3rd Example of the paper container which concerns on this invention. It is a perspective view which shows 4th Example of the paper container based on this invention. It is a perspective view which shows 5th Example of the paper container which concerns on this invention. It is a perspective view which shows 6th Example of the paper container which concerns on this invention. It is a perspective view which shows 7th Example of the paper container which concerns on this invention. It is a perspective view which shows 8th Example of the paper container which concerns on this invention. It is a perspective view which shows 9th Example of the paper container which concerns on this invention. It is a perspective view when a downward pressing force is applied to the top horizontal ruled line of the paper container of the ninth embodiment. It is a perspective view of the paper container of 9th Example which shows the state which opened the straw port. It is a perspective view which shows 10th Example of the paper container which concerns on this invention. It is the perspective view which showed 11th Example of the paper container which concerns on this invention. It is a perspective view which shows the conventional paper container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A Gable top paper container 1B Flat top paper container 2 Plane part 3 Trunk part 4 Top part 5 Gable roof surface 6 Tail wall 7 1st half cut 8 2nd half cut 8a Part surrounded by 2nd half cut 9 End part of peeling yarn mouth 9a tip 10 top horizontal ruled line 11, 11a, 11b first forming auxiliary folding line 12 straw port
13, 13a, 13b Second forming auxiliary folding line 14, 14a, 14b Third forming auxiliary folding line

Claims (6)

  A bottomed body portion and a top portion closing the top are formed by a paperboard base material in which thermoplastic resin layers are laminated on both front and back surfaces, and a first half cut is provided on the top portion to form a straw port from the back surface. A second half cut is provided so as to surround the first half cut, and a paper container in which the straw port is opened by delaminating a portion surrounded by the second half cut from the surface, wherein the second half cut is provided. The half cut is provided such that the end portion of the peeling yarn mouth that becomes the clue of peeling is provided downward across the top horizontal ruled line of the boundary between the top portion and the body portion and over the flat surface portion of the body portion. The section is provided with a first forming auxiliary folding line that crosses the peeling yarn mouth end of the second half-cut or coincides with the tip of the peeling yarn mouth edge and is connected to both ends of the top horizontal ruled line or the vicinity thereof. Features Paper container.   A bottomed body portion and a top portion closing the top are formed by a paperboard base material in which thermoplastic resin layers are laminated on both front and back surfaces, and a first half cut is provided on the top portion to form a straw port from the back surface. A second half cut is provided so as to surround the first half cut, and a paper container in which the straw port is opened by delaminating a portion surrounded by the second half cut from the surface, wherein the second half cut is provided. The half cut is provided such that the end portion of the peeling yarn mouth that becomes the clue of peeling is provided downward across the top horizontal ruled line of the boundary between the top portion and the body portion and over the flat surface portion of the body portion. The part is provided with two first forming auxiliary folding lines that extend from the left and right peeling yarn mouth ends of the second half-cut or in the vicinity thereof and are connected to corresponding ends of the top horizontal ruled lines or in the vicinity thereof, respectively. Paper container characterized by Rukoto.   3. The paper according to claim 1, wherein the top is provided with a second arc-shaped second auxiliary folding line that crosses the second half cut and is connected to both ends of the top horizontal ruled line or the vicinity thereof. container.   The top portion is provided with two second forming auxiliary folding lines that extend from the left and right sides of the second half-cut or in the vicinity thereof and are connected to the corresponding one ends or the vicinity thereof, respectively. The paper container according to claim 1 or 2.   A bottomed body portion and a top portion closing the top are formed by a paperboard base material in which thermoplastic resin layers are laminated on both front and back surfaces, and a first half cut is provided on the top portion to form a straw port from the back surface. A second half cut is provided so as to surround the first half cut, and a paper container in which the straw port is opened by delaminating a portion surrounded by the second half cut from the surface, wherein the second half cut is provided. In the half cut, an end portion of a peeling yarn mouth that becomes a clue of peeling is provided between a top horizontal ruled line at a boundary between the top portion and the body portion and the first half cut, and the top portion includes the second cut portion. A paper container, characterized in that a third forming auxiliary folding line is provided which crosses the end of the half-cut release yarn mouth end or coincides with the tip of the release yarn mouth end and is connected to both ends of the top horizontal ruled line or the vicinity thereof.   A bottomed body portion and a top portion closing the top are formed by a paperboard base material in which thermoplastic resin layers are laminated on both front and back surfaces, and a first half cut is provided on the top portion to form a straw port from the back surface. A second half cut is provided so as to surround the first half cut, and a paper container in which the straw port is opened by delaminating a portion surrounded by the second half cut from the surface, wherein the second half cut is provided. In the half cut, an end portion of a peeling yarn mouth that becomes a clue of peeling is provided between a top horizontal ruled line at a boundary between the top portion and the body portion and the first half cut, and the top portion includes the second cut portion. It is characterized in that two third forming auxiliary folding lines extending from the left and right peeling yarn mouth ends of the half cut or in the vicinity thereof and connected to corresponding ends of the top horizontal ruled line or in the vicinity thereof are provided. Paper container that.

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