JP2018030642A - Roof-shaped paper container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that it is difficult to open a spout of a conventional commercial roof-shaped paper container because outer top seal panels and inner top seal panels are adhered strongly in order to reduce liquid spill during a distribution stage.SOLUTION: A paper container of a high quality can be provided, which enables an end user to easily open a spout of a roof-shaped paper container because the end user can understand how to open the spout by forming a folding line in a pair of outer top seal panels and gable roof panels during a stage of manufacturing the paper container and printing appropriate and simple drawing and explanation so that opening work of the spout can be performed.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a method for opening a spout for simplifying the opening of a spout for a roof-type paper container represented by a milk pack.

  A simple figure and explanation are printed on a roof-type paper container that is commercially available so that the opening method of the spout can be performed in order.

Hereinafter, a conventional method for opening a commercially available roof-type paper container will be described with reference to FIGS.
In FIG. 1, the three-dimensional perspective view of the commercially available roof-type paper container 1 which is not opening the spout is shown. In FIG. 1, “please open on both sides” is printed as preparation for opening the spout, so when the outer top seal panel 1 above the end wall panel 4 is opened on both sides, a pair of outer top seal panels 1 and a pair The inner top seal panel 2 can be seen on a single plane. This state is shown in FIG. Since the pair of outer top seal panels 1 and the pair of inner top seal panels 2 are bonded to each other and have a structure that becomes a spout when peeled off, a portion that has been treated so as to be easily peeled off and a roof that has not been treated Only a small area in the vicinity of both sides of the end fold line 6 is bonded.
The printed surface in the state shown in FIG. 2 does not include a drawing and a description for instructing bending deformation or bending the overlapping portions of the outer top seal panel 1 and the inner top seal panel 2, and flatten the pair of inner top seal panels. In this state, press the fingers with both fingers to bring them closer to the gable roof panel and the explanation that says, “Push the left and right sides completely until they touch the roof”, then touch the fold line 6 at the roof edge of the open spout. And an explanatory note “Please pull it out sufficiently”. However, even if it went as described, the outer top seal panel 1 and the pair of inner top seal panels 2 were hardly peeled off and the spout could not be opened.

  JP 2006-290455 A   JP 2004-010169 A   JP 08-324554   JP-A-06-024438

For Patent Document 1, it takes time and labor to fold the center small triangular piece and the left and right triangular pieces after filling.
With respect to Patent Document 2, there is a fear of liquid leakage because a folding knob is provided on the inner paper, and a smaller knob must be grasped with a finger, which is unsanitary.
With respect to Patent Document 3, since the pull tab is formed on the paper container laminated material so as to be easily opened, the number of manufacturing steps is increased.
For Patent Document 4, it is necessary to confirm the strength of the elastic layer that fixes the tension piece at a position away from directly above the opening, and to change the manufacturing equipment.

  Conventionally, the pressure at the time of heat sealing in the molding and filling machine is high in order to reduce liquid leakage at the distribution stage of the liquid paper container, and the outer top seal panel 1 and the inner top seal panel 2 are firmly bonded. The liquid paper container thus formed is difficult to open by the end user. On the other hand, end users are increasingly demanding liquid paper containers that are clean and easy to open. The present invention has been made in view of such a problem, and an object of the present invention is to provide a liquid container having an easy opening property only by a double-sided thermoplastic resin-coated paperboard.

  In order to achieve the above object, the present invention is made of a paperboard material whose front and back surfaces are coated with a thermoplastic resin, and four cylinder parts are joined to form a quadrangular prism cylinder part. A pair of gable roof panels having an outer top seal panel and facing each other, and a pair of gable wall panels having an inner top seal panel at the top and facing each other and opened as a spout, are connected, A gable in which the top is formed by the pair of gable wall panels being folded between a pair of gable roof panels, and the outer top seal panel and the inner top seal panel being heat-sealed and sealed in place. In the roof-type paper container, from substantially the vicinity of the center of the pair of roof end folding lines at the ends of the pair of gable roof panels, substantially parallel to the diagonal roof folding lines of the pair of gable roof panels In the range reaching the pair of outer top seal panels, to provide a paper container, characterized in that it has a polygonal line.

  The present invention opens the outer top seal panel to the left and right, grabs the folding line at the roof edge, presses it against a pair of gable roof panels, and pulls away from the pair of gable roof panels to form a spout A paper container is provided.

  The roof-type paper container of the present invention is hygienic because the spout can be easily opened and the spout can be opened without touching the finger directly.

  Moreover, the time required for opening the spout can be extremely shortened. The opening of the spout can be easily done in a short time, so it is welcomed by end users. The use of roof-type paper containers is expected to increase, and it is excellent in recycling because there are no accessories such as plastic.

  It is a perspective view of the roof-type paper container represented by the conventional milk cartons.   It is a perspective view of the paper container which opened the outer side top seal panel 2 on the side wall panel of the side opened and used as the spout of the paper container shown in FIG.   It is a perspective view of a roof type paper container showing an embodiment of the present invention.   It is an expanded view before the assembly process of the paper container shown in FIG.   It is a perspective view of the paper container which shows the start condition of opening operation | work of a spout.   It is a perspective view of the paper container which shows the condition where it grasped with the 1st finger and the 2nd finger of the left hand, and pressed on the gable roof panel on the roof end part folding line.   It is a perspective view of a paper container which shows the situation where it grasped with the 1st finger and the 2nd finger of the left hand on the roof end part folding line, and began to pull in the direction away from a gable roof panel.   It is a perspective view of the paper container which shows the progress condition in the middle which is grasped with the 1st finger and the 2nd finger of the left hand, and is pulled in the direction away from the gable roof panel on the roof end part folding line.   It is a perspective view of the paper container which shows the situation where the spout was formed by grasping on the roof end folding line with the first finger and the second finger of the left hand and pulling away from the gable roof panel. The process is broken   It is a figure for knowing the change of the cross-sectional shape of an outer top seal panel and an inner top seal panel until opening of a spout is completed, and knowing the effect of the broken line indispensable for opening of a spout.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

In order to make it easy to separate the outer top seal panel 1 and the inner top seal panel 2 that overlap each other, if the folding line 5 is inserted into the gable roof panel 3 connected to the outer top seal panel 1 during the manufacturing process of the paper container, the left and right outer tops There is one place where the seal panel 1 is easy to bend, and when the paper container is boxed, the outer top seal panel 1 and the inner top seal panel 2 are superposed of paperboards having different bending strengths. In preparation for opening the spout, if the outer top seal panel on the end wall panel on the side that will be the spout is opened left and right, the outer top seal panel will have one more bendable part. Easy opening of the outlet. FIG. 10 is a cross-sectional view of only two portions of the outer top seal panel 1 and the inner top seal panel showing the opening state of the spout for easy understanding of the opening state. 10 includes a cross section AA in FIG. 3, a cross section BB in FIG. 5, a cross section CC in FIG. 6, a cross section DD in FIG. 7, a cross section EE in FIG. 8, and a cross section F- in FIG. F is shown.
Cross section AA is a state in which the paper container is boxed, and the inner top seal panel 2 is sandwiched between the outer top seal panels 1.
Section B-B shows a state in which the outer top seal panel on the end wall panel on the side to be opened as a spout is opened left and right, and the inner top seal panel 2 is overlapped with the outer top seal panel 1. As a result of bending the left and right outer top seal panels 1 by about 90 degrees, one bending-friendly portion is created.
The cross section CC represents a situation where the outer top seal panel 1 is bent at the position of the fold line 5 when the roof end fold line 6 is grasped and pressed toward the gable roof panel. The inner top seal panel 2 is overlapped with the outer top seal panel 1 which is bent and deformed.
Cross section DD represents a situation in which when the roof end fold line 6 is grasped and pulled in a direction away from the gable roof panel, it is bent at the position of the fold line 5 and a part of the adhesion with the inner top seal panel 2 is peeled off. . Since the left and right outer top seal panels 1 have two bent portions, it can be known that the adhesive portion can be peeled off from the inner top seal panel 2.
Cross section EE grasps roof end fold line 6 and when pulling progresses away from the gable roof panel, left and right inner top seal panels 2 are separated from left and right inner top seal panels 1 in cross section DD, and the palms are joined. When it is in a state, it represents a situation in which peeling of the adhesive portion between the inner top seal panel 2 and the outer top seal panel 1 has progressed.
The cross section F-F grasps the roof end fold line 6 and, when pulling progresses in a direction away from the gable roof panel, the portion of the outer top seal panel 1 in the palmed state disappears, the portion of the fold line 5 extends, and the spout It shows the situation where an opening was made.
In FIG. 4, the position of the fold line 5 for facilitating the folding of the outer top seal panel 1 is mainly from the center position of the roof end fold line 6 to the upper end of the outer top seal panel 2 in parallel with the oblique roof fold line in the length direction. However, in the lateral direction, it is possible to provide 7 mm on the left and right sides within the range based on the position of the broken line in the length direction, so that the range of the position of the broken line 5 is point 15 in FIG. , 16, 17, 18 and points 19, 20, 21, and 22 are indicated by hatching. There may be a plurality of broken lines 5 instead of only one. As an example in the case of putting two, in the gable roof panel 3 and the outer top seal panel 1, the gable roof panel 3 and the outer top facing each other on the lines 15 to 18 and 16 to 17 in FIG. The seal panel 1 may be provided on lines 19 to 22 and lines 20 to 21 in FIG.
The fold line 5 has the same cross-sectional shape as the roof end fold line 6, the roof diagonal fold line 7 and the roof top side fold line 8 of the gable roof type paper container. Performed during production and processing.
In FIG. 2 where the opening operation of the spout is started, the roof end fold line 6 from the point where the roof diagonal fold line 7 in FIG. 1 slightly approaches the roof end fold line 6 from the center of the roof top horizontal fold line 8 and Since it was to the intersection of the roof diagonal folding line 7, it became the situation where the inner side top seal panel 2 was pinched a little by the outer side top seal panel 1, and had trouble in the opening operation | work of a spout. In order to solve this problem, in the practice of the present invention, the oblique roof fold line 7 in FIG. 3 extends from the center of the roof top horizontal fold line 8 to the intersection of the roof end fold line 6 and the oblique roof fold line 7.
At the opening of the spout of a conventional paper container of the roof type, press the pair of inner top seal panels with fingers of both hands and bring them closer to the gable roof panel and `` Push the left and right completely and press until they touch the roof '' And how to make an open spout with an explanation of "please pull it out to the front" and a figure with your finger on the folding line 6 at the roof edge of the open spout There is no figure and explanation. Regarding the opening of the spout of the roof-type paper container of the present invention, the figures and texts used in the present invention are printed on the paper container.

使って表現してもよい。5, 6, 7, 8, 9, and 10, the position of the force application point 9 on the roof end fold line 6 should not be changed from the start to the end of the spout opening operation until the completion. Because it does, it is constant. Grab the vicinity of the intersection of the roof end fold line 6 and the roof top fold line 8 in FIG. 5 with the first finger and the second finger of the left hand and start the opening operation of the spout. Hold the paper container body with your right hand and fix it. The state of the outer top seal panel 1 and the inner top seal panel 2 in FIG. 5 is represented by a cross section BB in FIG.
As shown in FIG. 5, when the first finger and the second finger of the left hand holding the roof end folding line 6 are pushed, the pair of outer top seal panels 1 and the pair of inner top seal panels 2 are curved. 6 and 10 approach the gable roof panel 3 as shown by the section CC in FIG.
As shown in section D-D in FIGS. 7 and 10, operation 2 is performed by pulling the roof end fold line 6 away from the gable roof panel 4, and the outer top seal panel 1 and the pair of inner top seal panels 2. After a small opening is formed between the pair of outer top seal panels 1, after both sides of the pair of outer top seal panels 1 overlap as shown in the cross-section EE of FIGS. 8 and 10, Peeling of the part where the pair of inner top seal panels 2 are bonded begins and an unfinished spout 10 is formed.
In operation 3, when the roof end fold line 6 is further pulled, peeling of the bonded portion between the outer top seal panel 1 and the pair of inner top seal panels 2 is completed, and the pair of outer top seal panels 1 overlap. Thus, the spout 10 composed of the pair of outer top seal panels 1 and the pair of inner top seal panels 2 is completed. The section FF in FIGS. 9 and 10 shows a situation where the spout 10 is completed. Although the shape opened as the spout is a shape with four sides bent, it does not hinder the content to be poured out.
If the contents of work 1 to work 3 are summarized in a simple figure and description and printed on a roof-type paper container, the end user can understand the opening procedure of the spout 10 and actually execute the opening method.

It may be expressed using.

DESCRIPTION OF SYMBOLS 1 Outer top seal panel 2 Inner top seal panel 3 Gable roof panel 4 Tsum wall panel 5 Folding line 6 Roof end part folding line 7 Roof diagonal folding line 10 Outlet 11 12, 13, 14, 15 Body

Claims (2)

  It consists of a paperboard material coated with a thermoplastic resin on the front and back surfaces, and four barrels are joined to form a rectangular column barrel, and a pair of opposed top seal panels are provided on the upper end of the barrel, with an outer top seal panel on the top. A gable roof panel and a pair of gable wall panels having an inner top seal panel on the top and facing each other and one of which is opened as a spout are connected to each other, and the pair of wives are interposed between the pair of gable roof panels A pair of gable roofs in a gable roof type paper container in which a wall panel is folded and the top is formed by heat sealing and sealing the outer top seal panel and the inner top seal panel at a predetermined position. The pair of outer top seal panels extends from approximately the center of the pair of roof end fold lines at the end of the panel to approximately parallel to the oblique roof fold lines of the pair of gable roof panels. Within reach, paper container, characterized in that had a polyline.   The outer top seal panel is opened to the left and right, the roof end part fold line is grasped, pressed toward a pair of gable roof panels, and pulled in a direction away from the pair of gable roof panels, a spout can be formed. Item 2. A paper container according to item 1.

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