JP2022027353A - Flat body container with lid and handle - Google Patents

Abstract

To provide a sealed type and non-sealed type flat body container with a lid and a handle which has water resistance by using a sheet.SOLUTION: Ridge-folding lines and valley-folding lines are made on a water-resistant rectangular body sheet; gusset side walls 3A and gusset walls 4A are formed in parallel to both flange parts 2A; side walls 4B and slant flange handle parts 2B are formed on both sides of a bottom wall 7A; a gusset triangle wall is formed at a corner part, and, on an end part of it, gusset wall end fold-back parts 8A, 8B, 8C are formed; corner triangle walls 5A and corner handle parts 6A are formed, and by folding inside at both valley-folding lines 4 along the bottom wall 7A, and then folding-back at ridge-folding lines 3, the gusset wall end fold-back parts 8A, 8B, 8C are fixed to form a body part of a flat body container; and by welding with the body part by a three-way seal part of the lid part, a sealed type flat body container with a lid and a handle is formed. Further, without folding at the ridge-folding lines 3, the gusset wall end fold-back parts 8B, 8C are fixed to form a non-sealed type flat body container with a lid and a handle in which lid hook parts 11A, 11B, 11B' are formed.SELECTED DRAWING: Figure-8

Description

The present invention relates to a container body formed by bending a single synthetic resin sheet along a mountain fold and a valley fold line, and a flat container provided with a lid.

Technical background

Conventionally, a bag-shaped container has been provided as a flat container for wrapping the contents such as articles, but usually, the edges of two synthetic resin sheets are sealed in three directions, but the container is relatively provided. The volume is too small to store a large amount of contents. Also, in order to secure the required capacity, a stand pouch with the bottom of the bag expanded three-dimensionally is widespread, but since it is divided into several parts and welded, it is an advanced bag making to improve the sealing performance. Equipment is needed.

A tray-shaped container formed by bending a synthetic resin sheet is provided, but the sheet is cut into a predetermined shape in advance, and it takes time to assemble and there is a possibility of liquid leakage.

Further, as a method for molding into various shapes, there are molding methods such as injection, blow, and vacuum, but each method requires a mold individually and is expensive.

JP 2000-033954
Japanese Unexamined Patent Publication No. 2014-97844
Patent No. 5955512
JP-A-2019-172339
JP-A-2020-0833226

Problems to be solved by the invention

The present invention does not require a method for molding a synthetic resin that requires a mold, or a sheet that does not need to be cut into a complicated shape. It is an object to provide a flat container that does not require a mold that can be formed.

When heated in a microwave oven, there is a need for a container that has a sturdy handle when taken out and that does not cause burns.

It is required to provide a flat container that can be molded into various shapes, large and small, from a single rectangular sheet.

The challenge is to develop an environmentally favorable flattened container that can be provided in a highly shape-retaining state that does not buckle when the flattened container is three-dimensionalized, and that can be returned to the flattened container in its original state after use.

Means to solve problems

Therefore, the present invention is configured as a means for solving the above problems, because a flat container is formed by inserting mountain folds and valley fold lines in one sheet, so that no mold cost is required. ..

Further, since the container body is formed by one sheet, there is no seam on the bottom or side surface of the container, so that liquid leakage can be prevented.

In the case of the conventional flat body container, there is one with a flange etc., but there is no one with a full-scale handle, and in the case of the flat body container, a sturdy handle part that can be supported by both hands in both directions is provided. Since it is formed, there is no risk of burns when cooking in a microwave oven.

By changing the size of the sheet, the height of the ridge wall 3A, the height of the ridge wall 4A, and the shape of the corner triangular wall 4D, it is possible to form a flat container that can be used for various purposes, large and small.

When the flat container is three-dimensionalized, in the case of a closed flat container, the mountain fold line 3 between the gusset side wall 3A and the gusset wall 4A does not buckle due to internal pressure, but in the case of a non-sealed flat container, Buckling can be prevented by inserting only the streaks and making the gusset wall 3A and the gusset wall 4A into a vertical cone without bending at the mountain fold line 3. Further, after use, regardless of whether it is a closed type or a non-closed type, it can be flattened by bending at the mountain fold line 3 between the fold side wall 3A and the fold wall 4A, which is suitable for the environment.

The invention's effect

According to the present invention, a bent flat body (2-A) is formed by inserting 1 to 12 mountain folds and valley fold lines in a main body sheet, folding inward at parallel valley fold lines 4, and bending at both mountain fold lines 3. , (5-A) is formed, and the fold wall end folding portions 8A, 8B, and 8C are fixed by the fold wall edge folding fixing portions 9A, 9B, 9C, 9D, so that a closed flat body container with a lid and a handle is used. The main body of the container is formed, and then the flange of the flat container is welded with the three-way seal portion 17A of the lid 10A of (2-B) and (5-B). Complete 3-A) and (6-A). At the time of packaging, the contents can be charged and the closing seal portion 18A can be welded and sealed while being three-dimensionalized by compressed air from the charging port A.

In addition, after putting 1 to 12 mountain folds and valley fold lines in the main body sheet, the valley folds are made at both parallel valley fold lines 4, but the parallel mountain fold lines 3 are not bent into mountain folds. Folded flat bodies (8-A) and (10-B) are formed, and the four fold wall end folding portions 8B and 8C are fixed by the fold wall end folding fixing portions 9A', 9B', 9C' and 9D'. After forming the main body of the flat container, the bottom wall 7A is expanded downward while holding both flange portions 2A, so that the back surfaces of the fold wall end folded portions 8A and 8B are fixed while being semi-three-dimensional. Then, a non-sealed flat container (8-A) with a lid and a handle, and a container body (8-B) and (11-A) in which (10-B) are three-dimensionalized can be formed. Further, as shown in (8-B), the joint lid portion 10A'is bent at the valley fold line 11 and stopped at three lid hook portions by the flange portion 2A and the slanted flange handle portion 2B to move up and down. It is possible to form a three-dimensional container [Fig. 9], which is a non-sealed flat body container with a lid and a handle, which is resistant to left and right stress and also to torsional stress. Further, as shown in (12-A), the separated lid portion 10A'is bent at the valley fold line 11 and fastened to the slanted flange handle portion 2B of the container body at the two lid hook portions 11B and 11B'. 16B of a container [Fig. 12], which is a three-dimensional container of a non-sealed flat body container with a similarly strong lid-separated type lid and handle, can be formed.

In the case of a closed flat body container with a lid and handle, it can be used as a wet sheet, wet tissue container, frozen chilled food container, etc. because there is no leakage of liquid, etc., and a non-sealed flat body container with a lid and handle. Can be used for lunch containers, containers for fast foods, etc.

In each application, the empty container after consumption is conventionally put in a garbage bag as it is and discarded, so it becomes a huge bulk. However, in this container, both parallel side walls 3A and wall 4A are used. It is environmentally preferable because the volume can be significantly reduced by bending it along the mountain fold line 3 in between and easily returning it to the original flat container without soiling the hands.

Flattened container regardless of closed type or non-sealed type flat container by fixing the four fold wall end folding parts 8A, 8B, 8C with the fold wall end folding fixing parts 9A, 9B, 9C, 9D. On the back side of the corner handle portion 6A at the four corners, a triangular pyramid portion EFGH is formed by the truss structure of the gusset triangular wall 4D and the corner triangular wall 5A, and the corner handle portion 6A and the slanted flange between them are formed. Since the handle part formed by the part becomes strong, it is easy to take out after cooking in a microwave oven and it is hard to get hot, so it is possible to prevent burns.

Is a plan view showing a first embodiment for forming a closed flat body container with a lid and a handle according to the present invention. (2-A) is a perspective view of the main body sheet bent. (2-B) is a diagram in which a main body sheet is bent to form a flat body container main body. (3-A) is the first embodiment of the closed flat body container with a lid and a handle of the present invention. (3-B) is a perspective view in which (3-A) is three-dimensionalized and closed by the closing seal portion 18A. (4-A) is an oblique plan view of the main body sheet of the second embodiment before bending for forming a closed flat body container with a lid and a handle according to the present invention. (4-B) is a perspective view of the main body sheet in the process of bending. (5-A) is a perspective view showing a container body of a closed flat body container with a lid and a handle, in which the fold wall end fold-back portion is fixed to the fold wall end fold-back portion 9A, 9B, 9C, 9D. .. (5-B) is a perspective view showing a lid portion 10A provided with an annular fracture portion. (6-A) is a perspective view showing a closed flat body container 14A with a lid and a handle, which is fixed by a three-way seal portion 17A of a lid portion 10A with a sheet having an annular fracture portion set up. (6-B) is a perspective view in which (6-A) is three-dimensionalized and sealed by the closing seal portion 18A. (6-C) is a cross-sectional view of the three-dimensional container 14B cut along the broken line 13. Is a plan view before bending the main body sheet of the third embodiment for forming a non-sealed flat body container with a lid and a handle according to the present invention. In (8-A), by bending the main body sheet, the fold wall end folding portions 8B and 8C are fixed by the fold wall end folding fixing portions 9A', 9B', 9C', 9D', and the joint lid portion. It is a non-sealed flat body container with a lid and a handle attached with 10A'. (8-B) is a three-dimensional container with lid hook portions 11A, 11B, 11B'formed by fixing the lid portion 10A'and the lid inclined portion 10B, 10B' with the lid hook folding fixing portions 12A, 12B. It is a perspective view which shows the state before the lid is applied to the main body. Indicates a state in which the lid portion is bent at the lid joint portion 1A and fixed to the container body at the lid hook portions 11A, 11B, 11B'from the state of (8-B). (10-A) is a plan view showing a main body sheet of the fourth embodiment for forming a non-sealed flat body container with a lid and a handle according to the present invention. (10-B) is formed by bending the main body sheet at the valley fold line 4 and fixing the fold wall end folding portions 8B and 8C at the fold wall end folding fixing portions 9A', 9B', 9C'and 9D'. It is a perspective view which shows the main body part of the non-sealed flat body container with a lid and a handle. (11-A) is a perspective view in which 16A is three-dimensionalized and the back surfaces of the fold wall end folded portions 8A and 8B are fixed. (11-B) is the lid portion 10A', which is bent at both ends of the lid inclined portion 10B and 10B'bent at the valley fold line 11, bent at the valley fold line 10, and fixed at the lid hook folding fixing portion 12B. 11B and 11B'are shown by the lid hook portions 11B and 11B', and the lid shake prevention wall 23A formed by bending at the valley folding length 12 is shown. Is a perspective view in which the lid hook portions 11B and 11B'of the lid portion 10A'formed by (11-B) are fixed to the slanted flange handle portion 2B on the three-dimensional container main body 16B.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
A closed flat body container with a lid and a handle, which is the first embodiment, will be described with reference to [Fig. 1], [Fig. 2], and [Fig. 3].

The present invention uses a single synthetic resin sheet, for example, a sheet for a milk carton, or a sheet in which a water-resistant thin-film polyethylene sheet is laminated on the front and back of a corrugated cardboard G flute (0.9 mm thick) sheet. It is preferable to do so.

As shown in [Fig. 1], first, the mountain fold line and the valley fold line are strongly inserted, and then the mountain fold line 1 parallel to both flange portions 2A, the ridge side wall 3A between the mountain fold lines 3, and both of them. A flange wall 4A is formed between the mountain fold line 3 and the valley fold line 4, and the flange triangle wall 4D and the flange wall end folding portion 8B are arranged at the extension portions of both of them, and 8A and 8C are arranged at the adjacent portions thereof. , Corner triangular walls 5A are provided at the four corners, side walls 4B are arranged on both sides of the bottom wall 7A, diagonal flange handle portions 2B are arranged at the extension portions thereof, and corner handle portions 6A are provided at the four corners of the seat. For the lid 10A,
It is configured by arranging the lid inclined portions 10B on both sides along the valley fold line 11 and providing the three-way sealing portion 17A.

In (2-A) of [Fig. 2], fold inward at the valley fold line 4 parallel to the bottom wall 7A, and further fold outward at the mountain fold line 3 at (2-B). By fixing the fold wall edge folding portions 8A, 8B, 8C to both ends of 4A with the fold wall edge folding fixing portions 9A, 9B, 9C, 9D, the container body of the closed flat body container with a lid and a handle can be used. The lid joint portion 1A is connected to the lid portion 10A, and the three-way seal portion 17A forms a state before welding.

The height of the gusset wall 4A is preferably relatively equal to or less than the height of the gusset side wall 3A, and the angle of the portion in contact with the bottom wall of the gusset triangular wall 4D is the same as that of the bottom wall of the corner triangular wall 5A. It is preferable that the angle of the contacting portion is equal to or less than that.

As shown in (3-A) of FIG. 3, welding is performed between the container body of a closed flat container with a lid and a handle and the three-way sealing portion 17A of the lid portion 10A, and the container is compressed from the inlet A to form a three-dimensional shape. After storing the contents, the contents can be sealed by heat-sealing with the closing seal portion 18A. Further, the opening method can be opened by hand by providing the opening V notch portion 19A.

As shown in (3-B) of [Fig. 3], 13A is three-dimensionalized by pressure from the input port A, and the truss wall edge folding portions 8A, 8B, and 8C are formed on the back surface of the corner handle portion 6A. The triangular pyramid portion EFGH of the four-sided truss structure, which is a collection of truss portions, is formed by the gusset triangular wall 4D which is fixed by the folded-back fixing portions 9A, 9B, 9C, and 9D and is formed on the corner triangular wall 5A and the back surface thereof. Therefore, it becomes a strong corner portion, and by connecting the corner handle portions 6A at the four corners and the oblique flange portion 2B, strong handle portions are formed on both sides. Further, when the container is sealed with the closing seal portion 18A, the container can be prevented from sinking due to the internal pressure, and the container becomes strong against torsional stress.

<Second Embodiment>
An easy-open type of a closed flat body container with a lid and a handle will be described with reference to [Fig. 4], [Fig. 5], and [Fig. 6].

In the present invention, a polyethylene thin film sheet is laminated on the front and back of a synthetic resin sheet, for example, a milk carton or a G flute (0.9 mm thick) of a corrugated cardboard sheet, and a sheet having airtightness and water resistance is used. preferable.

As shown in (4-A) of [Fig. 4], by firmly inserting the mountain fold and valley fold lines, a container body of a closed flat body container with a lid and a handle is formed as in the first embodiment. , (5-A) in [Fig. 5]. Next, a closed flat body container with a lid and a handle is formed by welding a lid sheet (5-B) with an annular fracture portion 22A to the container body portion of (5-A) with a three-way sealing portion 17A. The easy open type of is shown in (6-A) of [Fig. 6]. Next, (6-B) shows a state in which the contents are three-dimensionalized by compressed air from the inlet A, the contents are stored, and the contents are hermetically welded by the closed seal portion 18A. Since the description of the corner handle portion is the same as that in the first embodiment, the description thereof will be omitted.
FIG. 6C of FIG. 6 is a cross-sectional view of a closed type easy-open flat body container 14B with a lid and a handle cut along a broken line 13, and the lid portion 10A is an opening raising portion 21A. Then, the weakly-bonded portion 20A is peeled off, and the strongly-bonded portion 20B lower sheet is also peeled off at the annularly-bonded portion 22A to open along the weakly-bonded portion outer perforation 22B to secure the opening of the annularly-bonded portion 22A. And the contents can be taken out. As a result, the lid inclined portions 10B on both sides are integrated with the container body and become horizontal at the same height as the flange portion 2A, so that the contents can be stored up to the limit of the opening and the liquid matter can be stored. It has the advantage of being suitable as a container.

<Third Embodiment>
A non-sealed flat body container with a lid and a handle will be described with reference to [Fig. 7], [Fig. 8], and [Fig. 9].

The present invention is environmentally preferable because it is water resistant by laminating a thin polyethylene sheet on the front and back of a corrugated cardboard sheet of a milk carton or G flute (0.9 mm thick) and can be recycled as paper.

As shown in [Fig. 7], a non-sealed flat container with a lid and a handle is formed by punching out one sheet from a Thomson die and firmly inserting mountain folds and valley fold lines. Is shown in (8-A) of [Fig. 8]. Fold inward at both valley fold lines 4 extending in parallel with the flange portion 2A, and fix the fold wall folding portions 8B and 8C at the four corners with the fold wall end folding fixing portions 9A', 9B', 9C', 9D'. Then, a lid hook fixing portion 12A extending to the lid portion 10A'is formed, and the resulting lid hook portion 11A and the lid hook folding fixing portion extending to the lid portion 10A'and the lid inclined portions 10B'on both sides thereof are formed. A non-sealed flat body container 15A with a lid and a handle is shown in (8-A) of [Fig. 8] by forming 12B and forming the resulting lid hook portions 11B and 11B'.

(Three-dimensional method of non-sealed flat container with lid and handle)
The main body sheet of the non-sealed flat body container with the lid and handle of (8-A) in [Fig. 8] is folded inward along the valley fold line 4 extending in parallel with the bottom wall 7A in between, and there are four folds. The wall end folding portions 8B and 8C are fixed at the flange wall edge folding fixing portion to form a flat body container body, and then, in order to make the flat body container three-dimensional, (Fig. 8) When the bottom wall 7A of 8-B) is moved downward while holding the flange portions 2A on both sides, the four fold wall end folding portions 8B and 8C are moved to the fold wall end folding fixing portions 9A', The mountain fold line 3 between the gusset wall 3A and the gusset wall 4A is not broken and only the streaks are inserted in the state where the fold line 3 is fixed at 9B', 9C', and 9D' to prevent the deployment. By integrating and unfolding, the corner triangular walls 5A at the four corners and the side walls 4B of both sides appear, and by fixing the back surfaces of the folding wall end folding parts 8A and 8B, the corner handle parts 6A on both sides are fixed. By connecting the inclined flange handle portions 2B, a strong handle portion is formed. The grounds for its strengthening are the truss portion formed by the gusset triangular wall 4D and the side wall 4B adjacent to the gusset wall end folding portion 8B, and the truss portion of the corner triangular wall 5A, which is a four-sided aggregate of the truss portions. This is the reason why the triangular pyramid EFGH is formed. As a result, a container body that is strong against vertical and horizontal stress is formed.

By bending at the parallel valley fold line 11 of the joint lid portion 10A'shown in (8-B) of [Fig. 8] and fixing the lid to the container body at the lid hook portions 11A, 11B, 11B'. 15B of [Fig. 9] shows a three-dimensional container of a non-sealed flat container 15A with a lid and a handle that is strong against torsional stress.

<Fourth Embodiment>
The non-sealed flat body container with a lid and handle shown in [Fig. 10], [Fig. 11], and [Fig. 12] according to the fourth embodiment is a lid-separated type and can be used as, for example, a lunch box container. If so, there is an advantage that more container bodies can be placed on the workbench and the filling work can be performed. Further, in the lid-covering method, a lid shake prevention wall 23A folded inward along both valley fold lines 12 is provided so that the lid portion is accurately covered, and (11-A) of [Fig.-11]. ) Is bent along the valley fold line 11 of the lid portion 10A'of (11-B) to the container main body 16B, and the lid hook portions 11B and 11B' extended to the lid inclined portions 10B and 10B'are the container main body. Is fixed to. Others will be omitted because they are the same as those in the third embodiment.

1, 2, 3, 6, 7, 9: Mountain fold line 4, 5, 8, 10, 11, 12: Valley fold line 13: Broken line 1A: Closure joint 2A: Flange part 2B: Oblique flange handle part 3A: 襠 side wall 4A: Closure wall 4B: Side wall 4D: Closure triangular wall 5A: Corner triangular wall 6A: Corner handle 7A: Bottom wall 8A, 8B, 8C: Closure wall edge folding part 9A, 9B, 9C, 9D: Closure wall edge folding sticking Part 9A ′, 9B ′, 9C ′, 9D ′: 襠 wall end folded fixing portion 10A, 10A ′: lid portion 10B, 10B ′: lid inclined portion 11A, 11B, 11B ′: lid hook portion 12A, 12B: lid hook Folded fixed part 13A: Sealed flat container with lid / handle 13B: Container with 13A three-dimensional: Sealed easy-open flat container with lid / handle 14B: Container with 14A in three dimensions 15A: With lid / handle Non-sealed flat container 16A: Non-sealed flat container body with lid / handle 17A: Three-way seal 18A: Closing seal 19A: Opening V notch 20A: Weak sealing 20B: Strongly attached 21A: Opening pull-up Part 22A: Circular break part 22B: Weakly adhered part outer perforation 23A: Cover shake prevention wall A: Insertion port EFGH: Triangular cone part

Claims (7)

As shown in (4-A) of [Fig. 1] and [Fig. 4], 1 to 12 mountain fold lines and valley fold lines are put in one rectangular synthetic resin sheet, and both flange portions 2A. In parallel with, a gusset wall 3A and a gusset wall 4A are formed, and a gusset triangular wall 4D having the same length as the width of the side wall 4B is formed at four locations of the extension portions of both gusset walls 4A, and further end thereof. A fold wall end folding part 8B is formed in the portion, folded inward at the valley fold line 4, and folded outward at the mountain fold line 3, and the front surface of the fold wall end folding part 8B and 8C and the back surface of 8A and 8B are formed on the gusset wall. By fixing at the end folded fixing portions 9A, 9B, 9C, 9D, the three-way sealing portion of the lid portion 10A shown by (2-B) in [Fig. 2] and (5-A) in [Fig. 5]. It is welded to the flat body container body at 17A to form a closed flat body container with a lid and a handle. Further, it is a closed flat body container with a lid and a handle, which is configured so that it can be opened and expanded by compressed air from arrow A, and the contents can be put in and welded to the closed seal portion 18A to make it three-dimensional. A water-resistant sheet made by laminating a polyethylene thin film sheet on the front and back of a milk carton or a corrugated cardboard G flute (0.9 mm thick) sheet, as shown in [Fig. 7] and [Fig. 10] (10-). As shown in A), a mountain fold line and a valley fold line are inserted to form a gusset wall 3A and a gusset wall 4A in parallel with both flange portions 2A. A polyethylene triangular wall 4D having the same length as the width of the corrugated cardboard is formed, and a folding wall end portion 8B is provided at the end thereof. At that time, in order to prevent buckling due to pressurization from the upper part, the mountain fold line 3 does not fold back with creases, but as shown in (8-A) and (10-B), the fold wall edge folds back. The surfaces of the portions 8B and 8C are fixed by the folding wall end folding fixing portions 9A', 9B', 9C', and 9D', and (8-A) in [Fig. 8] and (10-) in [Fig. 10]. The container body portion of the non-sealed flat body container with a lid and handle shown in B) is formed.
Further, while holding the flange portion 2A of the non-sealed flat container body shown by (8-A) of [Fig. 8] and (10-B) of [Fig. 10], the bottom wall 7A'is lowered downward. By unfolding it into a three-dimensional shape, the back surfaces of the fold wall edge folded portions 8A and 8B are fixed and three-dimensionalized to form the container bodies of (8-B) and (11-A), respectively. In the lid hook portions 11A, 11B, 11B'of the joint lid portion of (8-B) of the lid portion [Fig. 8], and in the lid hook portions 11B, 11B'of the separable lid portion of (11-B). A non-sealed flat container with a lid and handle that can be locked to the container body. As shown in (4-A) of [Fig. 1] and [Fig. 4], insert the mountain fold lines and valley fold lines of 1 to 12 and fold them inward at the valley fold line 4 parallel to both flange portions 2A. , The surfaces of the folded parts 8B and 8C at the end of the gusset wall overlap, and as shown in (2-B) of [Fig. 2] and (5-A) of [Fig. 5], they are folded back at both mountain fold lines 3. , The back surfaces of the fold wall end folds 8A and 8B are overlapped, and the fold wall end folds 9A, 9B, 9C and 9D are used to fix the fold wall end folds 8A, 8B and 8C, and there are four corners. By connecting the handle portion 6A to the diagonal flange handle portions 2B on both sides, an integrated handle portion is formed on both sides, and the three-way seal portion 17A of the lid portion 10A welds to the flat container main body to cover the lid. A closed flat body container with a handle is formed, then three-dimensionalized by pressure air from arrow A, and the contents are put in and welded and sealed at the closed sealing portion 18A (3-) in [Fig. 3]. B) As shown in (6-B) of [Fig. 6], the truss portion formed by the flange triangular wall 4D and the side wall 4B and the truss portion of the corner triangular wall 5A are formed below the corner handle portion. 1. The triangular pyramid portion EFGH, which is a four-sided aggregate of the truss portion, is formed at the four corners, and a strong handle portion is formed against vertical and horizontal stress and torsional stress. Sealed flat container with lid and handle as described. As shown in (10-A) of [Fig. 7] and [Fig.-10], insert the mountain folds and valley fold lines of 1 to 12, and fold them inward at the valley fold line 4 parallel to both flange portions 2A. The surfaces of the truss wall edge folding portions 8B and 8C are fixed by the truss wall edge folding fixing portions 9A, 9B, 9C and 9D, and (8-A) in [Fig. 8] and (10-) in [Fig. 10]. As shown in B), a non-sealed flat container with a lid and a handle is formed, and while holding the flange portion 2A, the bottom wall 7A is pushed downward to make it three-dimensional, and the truss wall end folded portion 8A. , 8B is fixed to form a container body as shown by (8-A) in [Fig. 8] and (10-B) in [Fig. 10], and four corner handles are formed. By connecting the portion 6A to the slanted flange handle portions 2B on both sides, an integrated handle portion is formed on both sides, and a truss portion formed by a gusset triangular wall 4D and a side wall 4B below the corner handle portion 6A. At the truss portion of the corner triangular wall 5A, the triangular pyramid portion EFGH, which is a four-sided aggregate of the truss portion, is formed at the four corners, and a handle portion that is strong against vertical and horizontal stress is formed. As shown in [Fig. 12], the non-sealed lid / handle according to claim 2, wherein a handle portion is formed which is strong against torsional stress by applying the lid. Flat flat container. A container formed by pressure-free three-dimensionalization from the inlet A of a closed-type easy-open flat body container with a lid and a handle shown in (6-A) of [Fig. 6] and welding with a closed-sealing seal portion 18A. , 14B of (6-B) in [Fig. 6], the annular fracture portion 22A is lifted by the opening pulling portion 21A, and the central portion of the lid portion 10A is firmly attached to the central portion 20B at the outer perforation 22B of the weakly attached portion. When the top surface of the container was opened with the container peeled off, the upper end of the lid inclined portion 10B fused with the container body and integrated with the lid inclined portions 10B on both sides was horizontal to the weakly attached seal portion 20A. The closed type with a lid and a handle according to claim 1, wherein the capacity of the container can be maximized, and a lid inclined portion 10B particularly suitable for storing a liquid substance is formed. Flat container. The length and width of the gusset side wall 3A and the gusset wall 4A shown in (4-A) of [Fig.-1] and [Fig.-4], (10-A) of [Fig.-7], and [Fig.-10]. By changing the size of the bottom wall 7A, and the angle of the apex of the ridge triangular wall 4D in contact with the bottom wall 7A is defined by the width of the side wall 4B, but the corner triangular wall 5A in contact with the bottom wall 7A. The closed type with a lid / handle and the non-sealed flat body according to claims 1 and 2, characterized in that they can be formed into various shapes according to the use of the container by changing the angle of the apex. container. A mountain fold between the fold side wall 3A and the fold wall 4A shown in (4-A) of [Fig. 1] and [Fig. 4], (10-A) of [Fig. -7], and [Fig. -10]. By providing the line 3, after consuming the packaged object in (3-B) of [Fig. 3], (6-B) of [Fig.-6], [Fig.-9], and [Fig.-12], In order to reduce the volume of the three-dimensional container, the original container is compressed by sandwiching it from both the lid portion 10A and 10A'and the bottom wall 7A while bending it inward along the mountain fold line 3 with fingers. The closed type and non-sealed type flat body container with a lid and a handle according to claim 1 and 2, wherein the flat body container can be formed.

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