JP5539641B2 - Self-supporting packaging container and its use - Google Patents

Description

The present invention relates generally to self-supporting containers, and more particularly to self-supporting packaging containers that are excellent in self-supporting and stacking suitability. The invention also relates to a method of using such a self-supporting packaging container.

FIG. 12 is a perspective view of a self-supporting container proposed in Patent Document 1. FIG. The self-supporting container comprises two opposing side walls 1, 1, a top wall 2 and a bottom wall 3. These are fused on the side walls of each wall. The walls 1, 2, and 3 are formed of a plastic film (soft packaging material), and these are formed of a single sheet. The fusing layer is polyethylene or a copolymer made of polyethylene and polypropylene. The opening location is provided in the center when it is self-supporting. According to this self-supporting container, it is possible to obtain an upright bag that can be easily opened without using a tool, and that is simple and inexpensive to manufacture.
Special Table 2002-540025

  However, as mentioned above, conventional upright bags are composed only of films (soft packaging materials), so packaging liquids and powders with weight and fluidity makes the bags easily deformed, free standing, and stacking. There was a problem of lack of properness. Moreover, since the opening location is provided in the center when it is self-supporting, it is not suitable for taking out liquid and powder contents having weight and fluidity.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a self-supporting packaging container that is excellent in self-supporting property and proper stacking.

Another object of the present invention is to provide a method for using such a self-supporting packaging container.

The present invention relates to a self-supporting packaging container that can accommodate a fluid or injectable product in a cubical or rectangular parallelepiped space, and is strong enough that the shape of the container does not collapse even when five are stacked vertically. Four side walls that surround the space from all sides, a wrapping soft material, a top wall that closes the space from above, and the space below And a bottom wall closed from the bottom. Of the above four side walls, the second side wall first side wall and opposite thereof having a length of half of the depth length, the grip portion is provided that is formed by the packaging material. Out of the remaining third side wall and the fourth side wall facing the third side wall, a takeout port for taking out the product stored in the space is provided at the upper part of one side wall. The third side wall and the fourth side wall have portions extending upward and downward, respectively, and the extended portions are bent inward so as to cover the top wall and the bottom wall. It has become .

  According to the present invention, since the four side walls are formed of a strong, firm packaging material such as cardboard, the shape of the container does not collapse even when stacked, and the stackability is excellent. Of the four side walls, the first side wall and the second side wall facing the first side wall are each provided with a gripping portion formed of a sturdy, firm wrapping material having a half length. Therefore, the proper stacking is reinforced.

  The grip portion may be provided with a sampling hole for gripping with a finger.

  The third side wall and the fourth side wall extend upward and downward, respectively, and the extended portions are bent inward to cover the top wall and the bottom wall, thereby protecting them. It is preferable.

  The top wall and the bottom wall are made of a foldable soft material, but the third side wall and the extended part of the fourth side wall bend inward and cover them, increasing the strength. .

A method according to another aspect of the present invention provides the self-supporting packaging container filled with the flowable or injectable product, and the upper and lower portions of the third and fourth side walls. Is folded inward to cover the top wall and the bottom wall, and the self-supporting packaging container is oriented with the lateral ends of the gripping portion in a direction perpendicular to the first side wall and the second side wall. It relates to how to use self-supporting packaging containers that are stacked in the vertical direction.

  According to the present invention, since the four side walls are formed of a strong, firm packaging material such as cardboard, the shape of the container does not collapse even when stacked, and the stackability is excellent. Of the four side walls, the first side wall and the second side wall facing the first side wall are each provided with a gripping portion formed of a sturdy, firm wrapping material having a half length. Therefore, the proper stacking is reinforced. It can also be folded easily when discarded. When a spout is provided in the upper part of the bag, the opening area is widened and it is easy to pour the contents in a short time. In addition, the firm packaging material used on the side maintains the shape of the spout, thus improving the ease of use. In the case where through holes are provided at both end portions of the bonded side walls for gripping with fingers, the extraction holes become handles when held with one hand, facilitating pouring work.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
(Reference Example 1)

FIG. 1 is a perspective view of a self-supporting packaging container according to Reference Example 1 that can accommodate a fluid or injectable product in a cubic or rectangular parallelepiped space. 2 is a cross-sectional view taken along line II-II in FIG. In FIG. 1, a portion indicated by horizontal hatching and a portion indicated by mesh hatching are heat-sealed portions. In FIG. 2, the heat fusion part is indicated by reference numerals 31 and 32. When the side walls 22, 23, 24, and 25 are formed of cardboard, a film that melts with heat is provided on the back surface.

  1 and 2, the self-supporting packaging container 21 includes four side walls 22, 23, 24, 25, which are formed of a strong, firm packaging material such as cardboard, and surround the space 13 from four sides. Is provided. The self-supporting packaging container 21 includes a top wall 26 that closes the space 13 from the upper side and a bottom wall 27 that closes the space 13 from the lower side, which are made of a foldable soft material such as polyethylene. Of the four side walls, the first side wall 22 and the opposite second side wall 23 have gripping portions 28a and 28b formed of a strong, firm wrapping material having a half length. Is provided. The gripping portions 28a and 28b may be provided with extraction holes 30 for gripping with fingers. Out of the third side wall 24 and the fourth side wall 25 facing the third side wall 24, an extraction port 29 for taking out the product stored in the space 13 is provided at the upper portion of one side 24. The take-out port 29 is opened by cutting the one-dot chain line portion with scissors.

  According to the present invention, since the four side walls 22, 23, 24, 25 are formed of a strong and firm packaging material such as cardboard, the shape of the container does not collapse even when stacked, and the stackability is excellent. In addition, the first side wall 22 and the second side wall 23 facing each other are provided with gripping portions 28a and 28b each having a length that is half of the depth length and formed of a sturdy, firm packaging material. Furthermore, the proper stacking is reinforced.

FIG. 3 is a photograph showing a state where the one-dot chain line portion of FIG. 2 is cut with scissors, opened, and the product is taken out. A gripping portion formed of a strong, stiff wrapping material having a length half the depth formed on the first side wall and the second side wall facing the first side wall is connected to the first side wall and the second side wall. Fold it so that it touches the side wall, put your finger on the part of the extraction hole, hold it, tilt it, and pour out the product.
(Reference Example 2)

  Next, the manufacturing method of the above-mentioned self-supporting packaging container will be described.

  Referring to FIGS. 4A and 4B, two opposing side members 5 and 6 formed of a strong, firm packaging material are prepared. The raised portion at the top of one of the side members is a take-out port. Reference numeral 14 is a portion that becomes a removal hole. Referring to FIGS. 4C and 4D, the upper V-shaped film, which is a top wall made of a foldable soft material, folded in a V shape so that the mountain faces inward, respectively. 7 and a lower V-shaped film 8 serving as a bottom wall are prepared. The raised portion at the top of the upper V-shaped film 7 serves as a take-out port. 7a is one slope of the upper V-shaped film 7, and 7b is the other slope. 8a is one slope of the lower V-shaped film 8, and 8b is the other slope. 4 (A) and 4 (B), the dotted line at the center indicates a place where the container is bent in the self-supporting container when it is expanded and completed.

  Referring to FIG. 5, a part of side member 6 and one inclined surface 7b of upper V-shaped film 7 are partly formed so as to form an upward trapezoidal non-adhesive portion away from the upper edge. It is fused completely leaving “Leave a part” will be described later. One side of the side member and one inclined surface 8b of the lower V-shaped film are melted over the entire surface, leaving a part so as to form a downward trapezoidal non-adhesive portion away from the lower edge. When worn, the state shown in FIG. 6 is obtained.

Referring to FIG. 7, a part of the other side surface member 5 and one inclined surface 7a of the upper V-shaped film 7 are formed so as to form an upward trapezoidal non-adhesive portion away from the upper edge. It is fused completely leaving The other side of the side member 5 and one inclined surface 8a of the lower V-shaped film 8 are left entirely, leaving a part so that a downward trapezoidal non-adhesive portion is formed at a position away from the lower edge. Fuse.

  FIG. 8 is a front side view and a back side view of the self-supporting packaging container formed as described above in a folded state. In these drawings, the hatched portion represents the fused portion. One side of the side member and one slope of the upper V-shaped film (not shown) are all left with a part so that an upward trapezoidal non-adhesive portion 5a is formed at a position away from the upper edge. Is fused. A non-adhesive portion 10a serving as a take-out port for taking out a stored product is provided so as to be continuous with the non-adhesive portion 5a. The other side 6 of the side member and the other slope of the upper V-shaped film 8 (not shown) are partially left over so as to form an upward trapezoidal non-adhesive portion 6a away from the upper edge. Is fused. One side of the side member and one slope of the lower V-shaped film (not shown) are partially left over so that a downward trapezoidal non-adhesive portion 5b is formed at a position away from the lower edge. Is fused. The other side 6 of the side member and the other slope of the lower V-shaped film (not shown) are partially left over so that a downward trapezoidal non-adhesive portion 6b can be formed at a position away from the lower edge. Is fused.

  Referring to FIGS. 9 and 1, when the two side members 5 and 6 are gripped and spread in opposite directions as indicated by arrows, four trapezoidal non-adhesive portions 5a, 5b, 6a and 6b are formed. Together, a cubic or rectangular parallelepiped space 13 is formed, and a fluid or injectable product can be accommodated in the space 13.

In addition, when filling the space part 13 with the fluidity | liquidity or injectable product, the upper end of the side member 5 is opened without sealing. And a product is filled from the open upper end, and the upper end of the side member 5 is heat-sealed after that.
Example 1

10 (A) is a perspective view of a self-supporting container according to the first embodiment. Autonomy container according to the first embodiment, except for the following points are the same as Example 1 shown in FIG. 1, the description thereof will not be repeated.

  Referring to FIG. 10A, the third side wall 24 and the fourth side wall 25 extend upward and downward, respectively. Referring to FIGS. 10A and 10B, a portion 24a extending above the third side wall 24, a portion 25a extending above the fourth side wall 25, and a portion extending below the third side wall 24 are extended. A portion 25b and a portion 25b extending below the fourth side wall 25 are bent inward to cover the top wall 26 and the bottom wall 27 and protect them.

  The top wall 26 and the bottom wall 27 are formed of a soft material, but the extended portions 24a and 24b of the third side wall 24 and the extension of the fourth side wall 25, which are formed of a sturdy, stiff packaging material. Since the portions 25a and 25b cover these, the strength is increased. Thereby, stackability is further enhanced.

FIG. 11 is a diagram in which five self-supporting containers 21 according to the first embodiment are stacked in the vertical direction. Since the four side walls are formed of a strong, stiff packaging material such as cardboard, the shape of the container does not collapse even when stacked, and the stackability is excellent. Of the four side walls, the first side wall and the second side wall facing the first side wall are half the depth of the length, and the grip portions 28a and 28b formed of a strong, firm packaging material. Since it is provided, the proper stacking is further reinforced.

  It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  According to the present invention, since the four side walls are formed of a strong and firm packaging material, the shape of the container does not collapse even when stacked, and the stackability is excellent. It can also be folded easily when discarded.

5 is a perspective view of a self-supporting container according to Reference Example 1. FIG. It is sectional drawing which follows the II-II line in FIG. It is the photograph which copied a mode that the taking-out mouth was cut with scissors and the product was taken out. (A) It is one front view of the side member which opposes. (B) It is the other front view of the side member which opposes. (C) It is a perspective view of an upper V-shaped film. (D) It is a perspective view of a lower V-shaped film. It is a perspective view of the 1st process of the manufacturing method of the self-supporting container concerning reference example 2 . It is a perspective view of the 2nd process of the manufacturing method of the self-supporting container concerning reference example 2 . It is a perspective view of the 3rd process of the manufacturing method of the self-supporting container concerning reference example 2 . It is the front view on the front side and the front view on the back side of the self-supporting container obtained by the manufacturing method according to Reference Example 2 . It is a figure which shows a mode that the folded self-supporting container based on the reference example 2 is expand | deployed. (A) It is a perspective view of the self-supporting container which concerns on Example 1. FIG. (B) It is a perspective view when the part extended to the upper direction and the downward direction of the 3rd side wall and the 4th side wall was each bent inward. It is the figure which piled up the self-supporting container which concerns on Example 1 in the vertical direction. It is a perspective view of the conventional self-supporting container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 21 Self-supporting packaging container 22 1st side wall 23 2nd side wall 24 3rd side wall 25 4th side wall 26 Top wall 27 Bottom wall 28a, 28b Grip part 29 Taking-out port

Claims (4)

A self-supporting packaging container adapted to contain a fluid or injectable product in a cubic or rectangular parallelepiped space,
Four side walls that surround the space from four sides, and are formed of a sturdy, stiff packaging material that does not collapse the shape of the container even when five are stacked vertically ;
A top wall formed of a foldable soft material that closes the space from above and a bottom wall that closes the space from below,
Of said four side walls, the second side wall first side wall and opposite thereof having a length of half of the depth length, the grip portion is provided which is formed by the packaging material,
Of the remaining third side wall and the fourth side wall facing it, an upper part of one side wall is provided with a takeout port for taking out the product stored in the space portion ,
The third side wall and the fourth side wall have portions extending upward and downward, respectively, and the extended portions are bent inward so as to cover the top wall and the bottom wall. going on self-supporting packaging container.   The self-supporting packaging container according to claim 1, wherein the grip portion is provided with a sampling hole for gripping with a finger. The self-supporting packaging container according to claim 1, wherein the packaging material includes cardboard.   Preparing a self-supporting packaging container according to claim 1 filled with the flowable or injectable product;
  Folding the upper and lower portions of the third and fourth side walls inward to cover the top and bottom walls;
  A method of using a self-supporting packaging container, wherein the self-supporting packaging container is stacked in a vertical direction in a state in which a side end of the grip portion is oriented in a direction perpendicular to the first side wall and the second side wall.