JPH047057Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a liquid container, and more particularly to a parallelepiped-shaped liquid container assembled from a material having a thermoplastic synthetic resin coating on at least the inner surface of cardboard.

(Prior art) Conventionally, as containers for packaging liquids such as milk and juice, desired fold lines are provided on a material made of cardboard laminated with synthetic resin, etc., and these fold lines form multiple side walls, a top wall, a bottom wall, etc. , with a double-walled substantially triangular corner ear and the corner ear folded outward at the top;
It is glued to the opposing side walls, but at the bottom it is folded inward and glued to the bottom wall. However, since the corner edges glued to the bottom wall are folded over the bottom wall, they bulge outward, making the container unstable when it is stood up. In addition, as a means to deal with this instability, Japanese Patent Application Laid-Open No. 79275/1983 discloses a device in which the fold line that separates a corner lug and its adjacent flap is brought closer to the center of the bottom wall.

(Problem to be Solved) In the container described in JP-A No. 55-79275, the fold line between the corner flap and the adjacent flap is
Because it was only moved closer to the center, the tip of the corner ear bulged outward, and the instability was not completely eliminated.

(Means for Solving the Problems) In view of the above problems, the present invention has a structure in which a plurality of side walls and end walls are substantially triangular and are made of double walls, at least one of which overlaps the end wall. A liquid container comprising a corner edge formed in the liquid container, wherein the side wall and the end wall are divided by desired vertical folds and horizontal folds, and the corner edge is divided by vertical folds, horizontal folds, and diagonal folds. , and at least one of the end walls is provided with a diagonal fold that is centered on the vertical fold and symmetrical to the diagonal fold.

(Embodiments) The present invention has been devised to eliminate the above-mentioned drawbacks, and will be described in detail below based on embodiments shown in the drawings.

The present invention is made of materials as shown in Figure 1.
The layer structure is one in which synthetic resin or the like is laminated on both sides of cardboard, and for example, from the outside, a layer structure of polyethylene/ink/paper/polyethylene/aluminum foil/polyester/polyethylene can be used. This material has five side panels 1, 2, 3, 4, 5 for side walls that are connected via vertical folds l, and horizontally at the upper ends of the side panels 1, 2, 3, 4, 5. The top panels 6, 7, 8 for the upper end walls and the panels 9, 10 for the corner edges are separated by the vertical fold l and are connected to each other through the fold m, and the lower end also has a horizontal fold line m. The bottom panels 11, 12, 13 for the lower end walls and the panels 14, 15 for the corner ears are separated by vertical folds 1 and are arranged in series through the top panels 6, 7, 8, and the panels for the corner ears. Closing flaps 16, 17, 18, 19, 20 are connected to the upper ends of the panels 9, 10 through horizontal folds n, separated by vertical folds l, and similarly, bottom panels 11, 12, 13 have corner flaps. The ends of the panels 14, 15 are also provided with closing flaps 21, 22, 23, 24, 25 separated by longitudinal folds l through transverse folds o.
are installed in succession.

Here, the above-mentioned corner ear panels 9, 10 and 1
4 and 15 are provided with diagonal folds p for forming triangular corners, and furthermore, the bottom panels 11 and
In each of 12 and 13, a diagonal fold q is formed in line symmetry with the diagonal fold p with the vertical fold l as the center.

Further, in the drawing, reference numeral 26 denotes a drinking spout, the back of which is heat-sealed with a polyethylene film (not shown), and the front surface of which is heat-sealed with tear tape 27 for opening, which is mainly made of aluminum foil.

Next, as a method of assembling the materials shown in Fig. 1 above, conventionally well-known methods such as the
When assembled using the method shown in No. 16991, the parallelepiped container shown in FIG. Cut off about half of the material to a desired width, fold the edge inward and attach the other edge 29 on top of it, as shown in Figure 3.
It is preferable to overlap them and heat-seal them using a frame sealer or the like to prevent the content liquid from penetrating from that part. Furthermore, the corner ears s are glued to the side wall B, not the top wall A, where the drinking spout 26 is located.

Furthermore, as shown in FIG. 4, the bottom C of the assembled container is pushed in when the corner selvage s is glued to the bottom C, so the center of the bottom C is recessed inward, and the corner selvage s is placed in the recess. It will be stored.

(Effects) The present invention has the above-mentioned configuration, and a recess is created by creating a diagonal fold centered on the vertical fold of the corner rim and symmetrical to the diagonal fold of the corner rim at the container material stage. Since the corner ears are housed in the recesses, they do not bulge out in the vertical direction, and are particularly stable when placed on the bottom panel when standing up.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a plan development view showing the material before assembly of the container of the present invention;
Figure 2 is a perspective view of the container after assembly as seen from above, Figure 3 is an explanatory cross-sectional view showing the assembly process, and Figure 4 is a perspective view of the container seen from above.
The figure is a perspective view of the assembled container as seen from below. 1, 2, 3, 4, 5...Side panel, 6, 7, 8
...Top panel, 9, 10...Ear panel, 1
1, 12, 13... bottom panel, 14, 15... corner ear panel, 16, 17, 18, 19, 20...
...Closing flap, 21, 22, 23, 24, 25
... Closing flap, 26 ... Drinking spout, 27 ... Tearing tape for opening, 28, 29 ... Edge, l ...
Vertical fold, m, n...Horizontal fold, A...Ceiling wall, B...
Side wall, C...bottom wall, s...corner, p...diagonal fold, q...diagonal crease.

Claims (1)

[Scope of utility model registration request] A liquid container comprising a plurality of side walls and an end wall, with a double-walled substantially triangular corner corner, at least one of which is superimposed on the end wall,
The side walls and end walls are divided by desired vertical folds and horizontal folds, the corner edges are divided by vertical folds, horizontal folds, and diagonal folds, and at least one of the end walls has the A liquid container characterized in that a diagonal fold is provided that is centered on the vertical fold and symmetrical to the diagonal fold.