JP2000153853A - Bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a bag easy to carry and discharge contents by forming one of two faces to be a bottom and by providing a discharge port at an upper end or its vicinity of coupling sides which couple two vertexes of two planes not included in a side shared by the two planes by at least two sides. SOLUTION: Planes having three vertexes refer to a triangular bottom 1 and a triangular side 2. Coupling sides refer to a linear side 3 and an upper end side 4. The upper end side 4 is longer than the shortest line (a) drawn from a vertical angle on a side of the linear side 3 of the bottom 1 toward an opposite side. A discharge port 5 is formed with a part on a side of the linear side 3 of the upper end side 4 protruding, wherein the port 5 is formed by cutting off the protrusion. The bag is easy to hold since it has the triangular side on a holding part. Since a pouring part is the linear side, contents to be discharged may not spread but can be easily targeted to a desired region, whereby the bag is especially effective when the contents are transferred into another container. Since the upper end side 4 is longer than the line (a), a gradient angle in discharging the contents can be reduced for easy pouring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a bag.

[0002]

2. Description of the Related Art Heretofore, a bag has been formed from a rectangular side surface and a bottom surface. (Japanese Utility Model Laid-Open No. 57-88746) This bag is formed in a portion where the sealing surface is gripped, so it is difficult to hold the bag, and since the sealing surface extends to the discharge port, it is difficult to pour the bag.

[0003]

SUMMARY OF THE INVENTION The present invention provides a bag which is easy to hold and discharge.

[0004]

SUMMARY OF THE INVENTION The present invention is a polyhedral bag having two faces A, B sharing one side and each having three vertices, and at least two faces connected to the faces A, B. And one of the surfaces A and B as a bottom surface, and the upper end of a connection side connecting two vertexes of the surfaces A and B with at least two sides, which is not included in the side shared by the surfaces A and B, or A bag provided with a discharge port in the vicinity thereof is provided.

[0005]

Embodiments of the present invention will be described below. As shown in FIG. 1, a surface having three vertices
A triangular bottom surface 1 and a triangular side surface 2. The connection sides are a side 3 of a straight line and an upper side 4.

[0006] The bag of the present embodiment has two triangular surfaces (1, 2), a straight side 3, an upper end side 4, and a discharge port 5.
And a pair of opposed front surfaces 6 and 7 and is made of a flexible sheet.

The upper end side 4 is longer than the shortest straight line a drawn from the vertex angle of the side of the straight line of the bottom surface 1 on the side 3 side to the opposite side. Discharge port 5
Is formed by projecting a part of the straight line of the upper end side 4 on the side 3 side, and is formed by cutting out the protruding portion.

[0008] Since there is a triangular side surface on the grip side, it is easy to hold. Since the pouring side is a straight side, the content to be discharged does not spread and it is easy to aim at the part to be poured, which is particularly effective for refilling the content in another container. Since the upper end side 4 is longer than the straight line a, the inclination angle at the time of discharging the contents can be reduced, and the contents can be easily poured. Since one side and the bottom are triangular, it looks good.

To manufacture, as shown in FIG. 2, fold lines (mountain fold lines L, M, O, valley fold line N) are inserted into one rectangular flexible sheet (FIG. 2 (a)). ), The mountain fold lines L, M, and O are bent while bending the valley fold line N, and the lower end is cut off as shown in FIG. 2B, the edge is sealed, and finally the upper end side 4 is sealed (see FIG. Figure (c).

At least two surfaces connected to the surfaces A and B are curved surfaces, but may be creased in order to make the surfaces flat. Furthermore, although the planes A and B are triangular, valley fold lines and mountain fold lines may be applied to the sides constituting the planes A and B to form a polygon such as a pentagon (see FIG. 3).

The discharge port may be formed on the side surface portion 2 side. In this case, the discharge port is naturally widened and the contents can be easily poured. Alternatively, a side hem seal with a sealed side edge, a bottom hem seal with a sealed bottom edge, or an entire hem seal with a sealed side and bottom surface may be provided.

[0012]

According to the first and second aspects of the present invention, it is easy to hold the triangular side portion if it is used as a grip portion. In particular, when a discharge port for contents is formed on the side of a straight line, it is easy to pour.

According to the third aspect of the present invention, the inclination angle at the time of discharging the contents can be reduced, and the contents can be easily poured.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bag according to an embodiment.

FIG. 2 is a view showing a manufacturing process of the bag according to the embodiment.

FIG. 3 shows a modified example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom surface 2 Side surface part 3 Straight side 4 Top edge 5 Discharge port

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hideya Suzuki 2-1-3 Bunka, Sumida-ku, Tokyo F-term in Kao Corporation Research Laboratory (reference) 3E064 AD18 AD22 BA22 BC18 EA12

Claims (3)

[Claims] 1. Two faces A and B sharing one side and each having three vertices, and at least two faces connected to the faces A and B
A polyhedral bag having two faces, wherein one of faces A and B is a bottom face and two vertices of faces A and B are not included in a side shared by faces A and B, and at least two sides are provided. A bag provided with a discharge port at or near the upper end of the connection side connected by. 2. A tetrahedron having a bottom surface and one side surface formed by a triangle sharing one side, wherein two side surfaces other than the two triangle surfaces are connected at an upper end portion, and one side surface of the triangle. A bag comprising a flexible sheet having opposing straight sides. 3. The bag according to claim 2, wherein the upper end side is longer than a shortest straight line drawn from an apex angle of the bottom surface on the straight side to an opposite side.