JP2018079940A - Paper container with a mouth plug for liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper container with a mouth plug for liquid, excellent in design effect, which enables easy pouring in and out and easy drinking out of the mouth plug.SOLUTION: The main body of a bottle, when it is a flat sheet, has its apex forming panel connected to the upper end of the body panel via a transverse folding line 10. Two basing points are set on the transverse holding line, and a first sloping longitudinal folding line 27 runs from a basing point to upward on the apex forming panel, and the second sloping longitudinal folding line 28 from the other. Two basing points and the first and the second sloping longitudinal folding lines form one set, and there are several sets of them on the transverse folding line. When the vertical rims of the sheet are connected to form the main body part and the apex part of a container, either of the first and the second longitudinal folding lines becomes a mountain fold with the other becoming a valley fold, and the apex part becomes truncated conical shape. A cylindrical insertion part of the mouth plug is a conical form corresponding to the angle of inclination of the apex part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a liquid paper container with a stopper for containing a liquid content including beverages such as milk and juice, and other gel-like materials.

  Conventionally, as a liquid paper container with a stopper that contains liquid contents including milk and juice drinks and other gel-like substances, the bottom of the paper container material is a paper container made of a thermoplastic resin laminated on both front and back sides of a paperboard substrate. A paper container body represented by, for example, a gable top type or a brick type is formed, and a resin spigot is formed on a flat portion of the top, and a flange of the spigot is formed. There is a liquid paper container with a stopper provided by fixing the portion liquid-tightly on the surface of the flat portion at the top (see, for example, Patent Documents 1 and 2).

Such a liquid paper container with a stopper can take out the contained liquid contents by opening the stopper without cutting, tearing or opening the paper container.
When the liquid content contained in the liquid paper container with a cap is a beverage such as milk or juice, it is common to pour the beverage from the opened cap into a cup, etc. In some cases, a mouthpiece is attached to the mouthpiece and the drink is directly taken from the paper container.

JP 2009-7017 A JP2014-227189A

  However, in the liquid paper container with a stopper as described in Patent Documents 1 and 2, the top portion where the stopper is provided is an inclined flat surface portion or a horizontal flat surface portion. If the liquid content is a drink such as milk or juice, it is difficult to pour the cup against the top of the paper container and the corner of the trunk when pouring the drink from the open spout if the spout is low . Therefore, placing the cup away from the spout and pouring a drink into the cup has been done, but there was a problem that if the cup is away from the spout, there is a risk that it will become zero .

  Further, there is a problem that it is difficult to pour out the contained beverage to the end, and it remains in the paper container. In addition, when drinking a beverage directly from a paper container with a mouth attached to the spout, there was a problem that when the mouth was attached to the spout, the nose and chin hit the top of the paper container and the corner of the trunk, making it difficult to drink. .

  As a means to solve such problems, it is conceivable to increase the height of the stopper, but if the height of the stopper is increased, it becomes an obstacle to transporting the liquid paper container with a stopper, and the cost is increased. There is a problem that it becomes a factor of.

  In order to solve the above problems, the present inventor has focused on making the top of the liquid paper container with a stopper into a conical shape with an upper end opened and an inner diameter reduced toward the opening direction. As a result of overlapping, the present invention has been achieved.

  The object of the present invention is to make it easy to pour the liquid content to be contained and to pour it to the end, to make it easy to drink by directly attaching the mouth to the mouthpiece, and also to exhibit excellent design An object is to provide a liquid paper container.

  In order to achieve the above object, the invention described in claim 1 is a cylinder formed of a paper container material in which a thermoplastic resin layer is laminated on the outermost layers on both the front and back sides of a paper base, and is formed into a cylindrical shape. A paper container main body having a conical top portion having an upper end opened at an upper portion of the portion and a bottom portion at a lower portion; and inserted into the conical top portion and bonded to the conical top portion of the paper container main body; And a stopper having a cylindrical insertion part attached to the opening of the top of the shape. In the paper container main body, at least the body and the cone-shaped top are formed of a single paper container material, and are developed. A top forming panel is connected to the upper end of the body panel forming the body in a line through a top horizontal folding line, and the top forming panel has two base points at a predetermined interval from the top horizontal folding line. 1st top slope that is set and extends upward from each base point A fold line and a second top inclined vertical fold line extending outward from the first top inclined vertical fold line are formed, the two base points, and the first top inclined vertical fold line and the second top extending from the two base points upward A plurality of inclined vertical fold lines are formed on the top forming panel at equal intervals along the top horizontal folding line, and the other one of the vertical edges of the trunk panel and the top forming panel is the other. A sealing panel to be bonded to the vertical edge is continuously provided, and by adhering the sealing panel to the other vertical edge of the body panel and the top forming panel, a cylindrical body and a top are formed, One of the first top inclined vertical fold line and the second top inclined vertical fold line formed on the top forming panel is valley-folded and the other is mountain-folded, and the first top inclined vertical fold line and the second top By folding the vertical folding line The facing surface is bonded to form the cone-shaped top, and in the plug, the cylindrical insertion portion attached to the opening of the cone-shaped top is the cone-shaped top of the paper container body. It is characterized by a conical shape corresponding to the inclination angle.

According to the invention described in claim 1, the paper container main body is formed with a cylindrical trunk and a top by adhering a seal panel to the other vertical edge of the trunk panel and the top forming panel. Since the opposing surfaces are bonded to each other by folding the first top inclined vertical fold line and the second top inclined vertical fold line formed on the top forming panel, the conical top is formed. A liquid paper container with a stopper having a conical top portion whose inner diameter is reduced in the opening direction can be easily formed.
As a result, when pouring the beverage contents from the opened cap into the cup, the cup can be poured close to the cap so that it can be poured easily, and can be easily poured out to the end. When the liquid contents are taken by directly opening the mouthpiece, the liquid contents can be easily taken without the nose or chin colliding with the paper container.

In addition, the cylindrical insertion portion of the spout has a conical shape corresponding to the inclination angle of the conical top portion of the paper container body, so the conical top portion of the paper container body and the spout Thus, the sealing property when the cylindrical insertion portion is bonded is high, and liquid leakage from between the paper container body and the plug can be effectively prevented.
In addition, since the irregularities appear on the outer surface of the cone-shaped top portion by folding the first and second top inclined vertical folding lines of the cone-shaped top portion, an impressive decoration can be obtained, and the liquid paper container with a stopper is an excellent design Can demonstrate its sexuality.

  According to a second aspect of the present invention, in the paper container main body according to the first aspect, the body panel forming the body part is constituted by four cylindrical wall surfaces provided in series, and is developed. In the shape, the trunk panel has a branch point set on the boundary line between the four adjacent cylindrical wall surfaces, and two symmetrical vertical trunk lines extending from the branch point toward the top horizontal folding line. The intersection of the two trunk-inclined vertical fold lines and the top-side horizontal fold line is the base point of the first top-inclined vertical fold line and the second top-inclined vertical fold line formed in the top-forming panel. In addition, one of the four cylindrical wall surface portions is divided in the longitudinal direction at the approximate center to become two divided cylindrical wall surface portions, and the other three of the divided cylindrical wall surface portions are continuously provided. Both or either of the two divided cylindrical wall surfaces provided continuously to the left and right of the cylindrical wall surface A vertical seal panel is connected to the side edge of the top forming panel on the divided edge and the extended line of the divided edge, and the two tilted vertical folding lines formed on the cylindrical wall surface are mountain-folded. And the vertical seal panel joins the split edges of the two split cylindrical wall surfaces and the two side edges of the top forming panel to form the single cylindrical wall surface, A top is formed, and one of the first top inclined vertical fold line and the second top inclined vertical fold line is valley-folded and the other is mountain-folded, and the first top inclined vertical fold line and the second top inclined vertical line The opposing surfaces are bonded to each other by folding the fold line to form the cone-shaped top portion.

According to invention of Claim 2, the side edges of the said top part formation panel are joined, the cylindrical top part is formed in the upper part of a trunk | drum, and it is formed in the top part formation panel used as the cylinder shape. Either the first top inclined vertical fold line or the second top inclined vertical fold line is valley-folded, the other is mountain-folded, and the surfaces face each other by folding the first top inclined vertical fold line and the second top inclined vertical fold line. By adhering, a liquid paper container with a stopper having the above-mentioned cone-shaped top portion whose upper end portion is opened and whose inner diameter is reduced in the opening direction can be easily formed.
Furthermore, the symmetrical cylindrical trunk vertical fold line extending from the branch point set on the boundary line between the adjacent cylindrical wall surfaces in the trunk panel toward the top horizontal folding line is mountain-folded, and the divided cylindrical wall surface Since the barrel portion is formed by joining the split edge of the split cylindrical wall surface portion by the vertical seal panel continuously provided on the split edge of the portion, the barrel portion of the paper container body has a unique shape And exhibits even better design.

  According to the liquid paper container with a stopper according to the present invention, it is easy to pour the liquid content to be stored, and it is easy to drink by directly attaching a mouth to the stopper, and it is possible to exhibit excellent design properties. .

It is a perspective view which shows an example of embodiment of the liquid paper container with a stopper concerning this invention. It is an enlarged plan view of the opening part of the paper container main body shown in FIG. It is an expanded view of the paper container main body shown in FIG. It is a top view of the spigot shown in FIG. FIG. 5 is a front view of FIG. 4.

Hereinafter, an example of an embodiment of a liquid paper container with a stopper according to the present invention will be described in detail with reference to the drawings.
1 is a perspective view showing a liquid paper container with a stopper of this example, FIG. 2 is an enlarged plan view of an opening of the paper container main body shown in FIG. 1, and FIG. 3 is a development view of the paper container main body shown in FIG. 4 is a plan view of the plug shown in FIG. 1, and FIG. 5 is a front view of FIG.

  The liquid paper container with a stopper of this example is made of a paper container material in which a thermoplastic resin layer is laminated on the outermost layers on both the front and back sides of a paper base material, and an upper end portion is formed on an upper portion of the cylindrical body 1 formed in a cylindrical shape. A paper container main body 4 having a conical top 2 opening at the bottom and a bottom 3 at the bottom, and inserted into the conical top 2 and bonded to the conical top 2 of the paper container main body 4. It is comprised with the stopper 7 which has the cylindrical insertion part 6 attached to the opening part 5. As shown in FIG.

The paper container main body 4 is formed of a single paper container material in this example, and is assembled by the carton blanks 8 having the developed structure shown in FIG.
In the carton blanks 8, a body panel 9 that becomes the body part 1, and a top forming panel 11 that becomes the conical top part 2 are connected to the upper end of the body panel 9 via the top horizontal folding line 10. The body panel 9 is composed of four cylindrical wall surface parts 16, 17, 18, and 19 that are continuously provided across the boundary lines 12, 13, 14, and 15. In the body panel 9, a branch point 20 is set on the boundary lines 12, 13, 14, 15 of the adjacent cylindrical wall surface parts 16, 17, 18, 19, and extends from the branch point 20 toward the top lateral folding line 10. Two symmetrical tilted vertical folding lines 21 and 22 are formed. Intersections between the body inclined vertical fold lines 21 and 22 and the top horizontal fold line 10 are base points 23 and 24 of a first top inclined vertical fold line and a second top inclined vertical fold line, which will be described later, formed on the top forming panel 11. .

  Moreover, one cylindrical wall surface part 19 of the cylindrical wall surface parts 16, 17, 18, 19 is divided in the vertical direction at a substantially center to become two divided cylindrical wall surface parts 19a, 19b, and the divided cylindrical wall surface parts 19a, 19b. Are connected to the cylindrical wall surfaces 16 and 18 on the left and right of the other three cylindrical wall surfaces. Longitudinal seal panels 25 and 26 are connected to the divided edges of the divided cylinder wall surfaces 19a and 19b and the side edges of the top forming panel 11 on the extension lines of the divided edges of the divided cylinder wall surfaces 19a and 19b. .

  The top forming panel 11 has a trunk-inclined vertical extension extending from the branching point 20 set on each boundary line 12, 13, 14, 15 of the cylindrical wall surface parts 16, 17, 18, 19 to the top horizontal folding line 10. The intersections of the fold lines 21 and 22 and the top horizontal fold line 10 are set as base points 23 and 24, and the first top inclined vertical fold line 27 extending upward from the base points 23 and 24 and the second extending to the outside of the first top inclined vertical fold line 27 A top inclined vertical fold line 28 is formed at a predetermined angle. The angle θ formed by the first top inclined vertical fold line 27 and the second top inclined vertical fold line 28 leads to the inclination angle of the cone-shaped top 2, and when the angle θ is large, the inclination angle of the cone-shaped top 2 increases. When θ is small, the inclination angle of the cone-shaped top 2 is small.

  As will be described later, the upper end 29 of the top forming panel 11 folds the first top inclined vertical fold line 27 and the second top inclined vertical fold line 28 extending upward from the two base points 23 and 24 to form the conical top 2. At this time, the circular arc 29a is formed in a continuous shape so that the opening 5 of the conical top 2 is circular.

  In addition, a bottom panel 31 serving as the bottom 3 is connected to the lower end of the body panel 9 via a bottom horizontal folding line 30. The bottom panel 31 includes a pair of opposed outer bottom surface portions 32 and 33 provided continuously at the lower ends of the cylindrical wall surface portions 17 and 19 and a pair of opposed inner bottom surfaces provided continuously at the lower ends of the cylindrical wall surface portions 16 and 18. It consists of parts 34 and 35.

  The assembly of the paper container main body 4 of the present example by the carton blanks 8 having such an unfolded structure is first performed on the boundary lines of the adjacent cylindrical wall surface portions 16, 17, 18, 19 on the body panel 9. 15 are symmetrical symmetrical vertical fold lines 21 and 22 extending from the respective branch points 20 to the top horizontal fold line 10, and the lower boundary lines 12, 13, 14 and 15 from the respective branch points 20. The vertical seal panel is connected to the side edges of the top forming panel 11 on the extension lines of the split edges of the split cylinder wall surfaces 19a and 19b and the split edges of the split cylinder wall faces 19a and 19b. By sealing 25 and 26, the division | segmentation edge of the division | segmentation cylinder wall surface parts 19a and 19b is joined, and while forming the cylinder wall surface part 19, the cylinder which uses the cylinder wall surface parts 16, 17, 18, and 19 as a basic tone Condition Forming the body portion 1 to form a cylindrical top portion 36 at the top of the body 1 at the same time joining the side edges together in the top forming panel 11.

  Next, a pair of outer bottom surface portions 32 and 33 connected to the lower ends of the cylindrical wall surface portions 17 and 19 are provided outside the pair of inner bottom surface portions 34 and 35 connected to the lower ends of the cylindrical wall surface portions 16 and 18. A bottom seal 3 is formed by folding and sealing.

Next, either the first top inclined vertical fold line 27 or the second top inclined vertical fold line 28 formed on the top forming panel 11 is valley-folded, the other is mountain-folded, and the first top inclined vertical fold line 27 is The opposing top surfaces are bonded together by folding the second top inclined vertical fold line 28 to form the conical top 2.
In this example, the first top inclined vertical fold line 27 is folded in another, and the second top inclined vertical fold line 28 is folded in a mountain.
In this manner, the paper container body 4 having the conical top portion 2 having the upper end opened at the upper portion of the body portion 1 is assembled.

  The plug 7 attached to the opening 5 of the cone-shaped top 2 in the paper container body 4 is composed of a spout 37 and a cap 38 made of synthetic resin. The spout 37 has a male screw portion 39 on the outer peripheral surface, and the cap 38 has a female screw portion 40 that is screwed to the male screw portion 39 on the inner peripheral surface. The cap 38 is screwed onto the outer periphery of the spout 37. Yes.

  The spout 37 has a cylindrical insertion portion 6 that is bonded to the conical top portion 2 of the paper container body 4 and is attached to the opening 5 of the conical top portion 2, and the cylindrical insertion portion 6 is the conical top portion 2. It is formed in a conical shape having an inclination angle corresponding to the inclination angle. On the outer peripheral surface of the cylindrical insertion portion 6, the cone-shaped top portion 2 formed by valley-folding the first top inclined vertical fold line 27 formed on the top forming panel 11 and mountain-folding the second top inclined vertical fold line 28. The convex part 43 and the concave part 44 corresponding to the concave part 41 and the convex part 42 appearing on the inner surface are formed.

The plug 7 thus formed is attached to the opening 5 of the cone-shaped top 2 in the paper container body 4 as follows.
First, the longitudinal seal panels 25 and 26 that are connected to the respective split edges of the split cylinder wall surfaces 19a and 19b and the side edges of the top forming panel 11 that are on the extension lines of the split edges of the split cylinder wall surfaces 19a and 19b. After forming the cylindrical body portion 1 and the cylindrical top portion 36 by sealing each other, before forming the top portion 36 into the conical top portion 2, the cylindrical insertion portion 6 of the plug 7 is inserted into the top portion 36. Insert.

Next, the first top inclined vertical fold line 27 formed in the top forming panel 11 forming the top 36 is valley-folded, the second top inclined vertical fold line 28 is mountain-folded, and the first top inclined vertical fold line 27 is The conical top 2 is formed by adhering opposing surfaces by valley folding and mountain folding of the second top inclined vertical folding line 28.
The outer surface of the cylindrical insertion portion 6 is formed on the inner surface of the cone-shaped top portion 2 formed in this manner, and the outer surface of the cylindrical insertion portion 6 of the plug 7 is formed on the inner surface of the cone-shaped top portion 2. The convex surface portion 43 and the concave surface portion 44 formed in the above are joined together so as to be welded and fixed.

  In this manner, a liquid paper container with a stopper having a conical top portion 2 whose diameter is reduced from the body 1 side of the paper container body 4 toward the stopper 7 side is formed.

DESCRIPTION OF SYMBOLS 1 trunk | drum 2 cone-shaped top part 3 bottom part 4 paper container main body 5 opening part 6 cylindrical insertion part 7 stopper 8 carton blanks 9 trunk | drum panel 10 top side fold line 11 top part formation panel 12, 13, 14, 15 boundary line 16, 17, 18, 19 Cylinder wall surface portion 19a, 19b Divided cylinder wall surface portion 20 Branch point 21, 22 Body tilt vertical fold line 23, 24 Base point 25, 26 Vertical seal panel 27 First top tilt vertical fold line 28 Second top tilt vertical Folding line 29 Upper end 29a Arc 30 Bottom horizontal folding line 31 Bottom panel 32, 33 Outer bottom part 34, 35 Inner bottom part 36 Top part 37 Spout 38 Cap 39 Male thread part 40 Female thread part 41 Concave part 42 Convex part 43 Convex part 44 Concave part

Claims (2)

  It consists of a paper container material in which thermoplastic resin layers are laminated on the outermost layers on both the front and back sides of the paper base, and has a cone-shaped top that opens at the top at the top of the cylindrical body, and at the bottom A paper container body having a bottom part, and a spigot having a cylindrical insertion part that is inserted into the conical top part and is attached to the conical top part of the paper container body and attached to the opening part of the conical top part. In the paper container main body, at least the body part and the cone-shaped top part are formed of one paper container material, and a top horizontal folding line is formed at the upper end of the body panel forming the body part in a developed shape. A top forming panel is connected to the top forming panel, and two base points are set on the top forming panel at a predetermined interval from the top horizontal folding line, and the first top inclined vertical folding line extending upward from each base point. And a second top slope extending outside the first top slope vertical fold line A vertical fold line is formed, the two base points, the first top inclined vertical fold line extending upward from the two base points, and the second top inclined vertical fold line form a set, and a top horizontal fold line is formed on the top forming panel. Are formed at equal intervals along the same, and a seal panel bonded to the other vertical edge is connected to one vertical edge of the body panel and the top forming panel, By adhering a seal panel to the other vertical edge of the body panel and the top forming panel, a cylindrical body and top are formed, and the first top inclined vertical fold line formed on the top forming panel and the first One of the two top inclined vertical fold lines is valley-folded and the other is mountain-folded, and the opposing surfaces are bonded to each other by folding the first top inclined vertical fold line and the second top inclined vertical fold line. Formed, In the mouthpiece plug, the cylindrical insertion portion attached to the opening of the cone-shaped top portion has a conical shape corresponding to the inclination angle of the cone-shaped top portion of the paper container body. Liquid paper container with spout. In the paper container main body, the body panel forming the body part is constituted by four cylindrical wall surfaces provided in series, and in the developed shape, the body panel is adjacent to the four cylinder wall surfaces adjacent to each other. A bifurcation point is set on the boundary line of the section, two symmetrical vertical trunk line lines extending from the bifurcation point toward the top horizontal folding line are formed, the two trunk vertical folding lines and the top horizontal line are formed The intersection with the fold line is the base point of the first top inclined vertical fold line and the second top inclined vertical fold line formed in the top forming panel, and one cylindrical wall surface of the four cylindrical wall surfaces The portion is divided in the vertical direction at the approximate center to form two divided cylindrical wall surfaces, and the two divided cylindrical wall surfaces are provided on the left and right sides of the other three cylindrical wall surfaces connected with the divided cylindrical wall surfaces. Before the divisional edge of both and / or one of the parts and the extension of the divisional edge A vertical seal panel is continuously provided on a side edge of the top forming panel, two trunk inclined vertical fold lines formed on the cylindrical wall surface portion are mountain-folded, and two of the divisions are performed by the vertical seal panel The split edge of the cylindrical wall surface part and both side edges of the top forming panel are joined together to form the one cylindrical wall surface part and the cylindrical body part and the top part are formed, and the first top inclined vertical folding line and the One of the second top inclined vertical fold lines is valley-folded and the other is mountain-folded, and the opposing surfaces are bonded by folding the first top inclined vertical fold line and the second top inclined vertical fold line, thereby forming the cone shape. 2. A liquid paper container with a cap according to claim 1, wherein a top is formed.

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